CLIMBING TEST BENCH FOR SCOOTERS

Abstract

The present invention discloses a climbing test bench for scooters, comprising a middle bridge arranged horizontally and above the ground and a first skew bridge and a second skew bridge which are arranged at both ends of the middle bridge; an upper end of the first skew bridge is hinged with one end of the middle bridge, an upper end of the second skew bridge is hinged with the other end of the middle bridge, a lower end of the first skew bridge and a lower end of the second skew bridge are in contact with the ground, respectively; and a lifting device is arranged below the middle bridge, and the lifting device may drive the middle bridge to rise and fall so that the first skew bridge and the second skew bridge form different tilt angles. Due to light weight of a scooter, it is not desired to provide a truss-frame structure. The arrangement of a lifting device can ensure the stability of the present invention.

Claims

1. A climbing test bench for scooters, comprising a middle bridge which is arranged horizontally and above the ground and a first skew bridge and a second skew bridge which are arranged at both ends of the middle bridge; an upper end of the first skew bridge is hinged with one end of the middle bridge, an upper end of the second skew bridge is hinged with the other end of the middle bridge, and a lower end of the first skew bridge and a lower end of the second skew bridge are in contact with the ground, respectively; and a lifting device is arranged below the middle bridge, and the lifting device may drive the middle bridge to rise and fall so that the first skew bridge and the second skew bridge form different tilt angles.

2. The climbing test bench for scooters according to claim 1, characterized in that the lifting device is provided with a base; gantry frames are provided on both sides of the middle bridge, respectively, and lower ends of two columns of the gantry frames are fixed to the base or to the ground; a number of positioning pinholes which are spaced apart up and down are provided on the two columns of the gantry frames, respectively, and each of the columns is provided with one positioning pin which can be inserted into the positioning pinholes; and an end of the positioning pin can be inserted into a positioning pinhole to resist against a lower side surface of the middle bridge and confine the middle bridge to a height corresponding to the positioning pinhole.

3. The climbing test bench for scooters according to claim 1, characterized in that a number of pulleys that are in contact with the ground are provided at the lower end of the first skew bridge and the lower end of the second skew bridge, respectively.

4. The climbing test bench for scooters according to claim 2, characterized in that a number of pulleys that are in contact with the ground are provided at the lower end of the first skew bridge and the lower end of the second skew bridge, respectively.

5. The climbing test bench for scooters according to claim 1, characterized in that the lower end of the first skew bridge is connected to a first approach bridge, and the lower end of the second skew bridge is connected to a second approach bridge; one end of the first approach bridge is hinged with the lower end of the first skew bridge, and the other end thereof is in contact with the ground; and one end of the second approach bridge is hinged with the lower end of the second skew bridge, and the other end thereof is in contact with the ground.

6. The climbing test bench for scooters according to claim 2, characterized in that the lower end of the first skew bridge is connected to a first approach bridge, and the lower end of the second skew bridge is connected to a second approach bridge; one end of the first approach bridge is hinged with the lower end of the first skew bridge, and the other end thereof is in contact with the ground; and one end of the second approach bridge is hinged with the lower end of the second skew bridge, and the other end thereof is in contact with the ground.

7. The climbing test bench for scooters according to claim 1, characterized in that the first approach bridge is hinged with the lower end of the first skew bridge and forms a first lower movable joint, and the second approach bridge is hinged with the lower end of the second skew bridge and forms a second lower movable joint; the first lower movable joint comprises a first tubular lower sleeve that is sleeved on a hinge shaft of the first lower movable joint; the deck of the first approach bridge is extended onto the first lower sleeve and forms a first approach bridge deck extension, and the first approach bridge deck extension forms a first curved structure matched with an upper surface of the first lower sleeve; the deck at the lower end of the first skew bridge is extended onto the first lower sleeve and forms a first lower bridge deck extension, and the first lower bridge deck extension forms a third curved structure matched with a surface of the first lower sleeve; the second lower movable joint comprises a second tubular lower sleeve that is sleeved on a hinge shaft of the second lower movable joint; the deck of the second approach bridge is extended onto the second sleeve and forms a second approach bridge deck extension, and the second approach bridge deck extension forms a second curved structure matched with an upper surface of the second lower sleeve; and the deck at the lower end of the second skew bridge is extended onto the second lower sleeve and forms a second lower bridge deck extension, and the second lower bridge deck extension forms a fourth curved structure matched with a surface of the second lower sleeve.

8. The climbing test bench for scooters according to claim 1, characterized in that the upper end of the first skew bridge is hinged with one end of the middle bridge and forms a first upper movable joint; the first upper movable joint comprises a first tubular upper sleeve that is sleeved on a hinge shaft of the first upper movable joint; the deck on one side of the middle bridge deck is extended onto the first upper sleeve and forms a first middle bridge extension, and the first middle bridge extension forms a fifth curved structure matched with an upper surface of the first upper sleeve; the deck at the upper end of the first skew bridge is extended onto the first upper sleeve and forms a first upper bridge deck extension, and the first upper bridge deck extension forms a sixth curved structure matched with a surface of the first upper sleeve; the upper end of the second skew bridge is hinged with the other end of the middle bridge and forms a second upper movable joint, and the second upper movable joint comprises a second tubular upper sleeve that is sleeved on a hinge shaft of the second movable joint; the deck on the other side of the middle bridge deck is extended onto the second upper sleeve and forms a second middle bridge extension, and the second middle bridge extension forms a seventh curved structure matched with the surface of the second upper sleeve; the deck at the upper end of the second skew bridge deck is extended onto the second upper sleeve and forms a second upper bridge extension, and the second upper bridge extension forms an eighth curved structure matched with the surface of the second upper sleeve.

9. The climbing test bench for scooters according to claim 2, characterized in that the lifting device is a scissor hydraulic lifting platform, the hydraulic lifting platform is provided with at least two sets of scissors, and parallel joint pins are fixed between upper ends of adjacent scissors and between lower ends of adjacent scissors, respectively.

10. The climbing test bench for scooters according to claim 9, characterized in that the lower ends of the scissors of the hydraulic lifting platform are fixedly connected to the base, and the upper ends of the scissors are fixedly connected to the middle bridge.

11. The climbing test bench for scooters according to claim 3, characterized in that side plates are provided on both sides of the lower ends of the first skew bridge and the second skew bridge, respectively, pulley shafts connected to the two ends and to the side plates are provided between the side plates of the first skew bridge and the side plates of the second skew bridge, and a number of pulleys which are spaced apart are fixed on the pulley shafts.

12. The climbing test bench for scooters according to claim 4, characterized in that side plates are provided on both sides of the lower ends of the first skew bridge and the second skew bridge, respectively, pulley shafts connected to the two ends and to the side plates are provided between the side plates of the first skew bridge and the side plates of the second skew bridge, and a number of pulleys which are spaced apart are fixed on the pulley shafts.

13. The climbing test bench for scooters according to claim 1, characterized in that guardrails are provided on left and right sides of the first skew bridge, on left and right sides of the middle bridge and on left and right sides of the second skew bridge, respectively, and anti-skid strips are provided on the first skew bridge deck, the second skew bridge deck and the middle bridge deck.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0017] FIG. 1 is a schematic structure diagram of the present invention;

[0018] FIG. 2 is a schematic structure diagram of a first upper movable joint according to the present invention;

[0019] FIG. 3 is a schematic structure diagram of a second upper movable joint according to the present invention;

[0020] FIG. 4 is a schematic structure diagram of a first lower movable joint according to the present invention;

[0021] FIG. 5 is a schematic structure diagram of a second lower movable joint according to the present invention;

[0022] FIG. 6 is an enlarged view of part A of FIG. 1;

[0023] FIG. 7 is a schematic structure diagram of scissors of a lifting device according to the present invention; and

[0024] FIG. 8 is a schematic structure diagram of pulleys according to the present invention.

DETAILED DESCRIPTION OF THE INVENTION

[0025] As shown in FIG. 1, a climbing test bench for scooters of the present invention includes: a middle bridge 1 arranged horizontally and above the ground and a first skew bridge 2 and a second skew bridge 3 which are arranged at both ends of the middle bridge 1; an upper end of the first skew bridge 2 is hinged with one end of the middle bridge 1, an upper end of the second skew bridge 3 is hinged with the other end of the middle bridge 1, a lower end of the first skew bridge 2 is in contact with the ground via a first approach bridge 4, and a lower end of the second skew bridge 3 is in contact with the ground via a second approach bridge 5; pulleys 6 that are in contact with the ground are provided at the lower end of the first skew bridge 2 and the lower end of the second skew bridge 3, respectively; and a lifting device 7 is provided below the middle bridge 1, and the lifting device 7 may drive the middle bridge 1 to rise and fall so that the first skew bridge 2 and the second skew bridge 3 form different tilt angles.

[0026] As shown in FIG. 1 and FIG. 6, the lifting device of the present invention is provided with a base 71 and an upper platform; gantry frames 8 are provided on both sides of the middle bridge 1, respectively, and the lower ends of two columns 81 of the gantry frames 8 are fixed to the base 71; eight positioning pinholes 82 which are spaced apart up and down are provided on the two columns 81 of the gantry frames 8, respectively, and each of the columns 81 is provided with one positioning pin 83 which can be inserted into the positioning pinholes 82; and an end of positioning pin 83 can be inserted into a positioning pinhole 82 to resist against a lower side surface of the middle bridge 1 and confine the middle bridge 1 to a height corresponding to the positioning pinhole 82.

[0027] As shown in FIG. 1, FIG. 7 and FIG. 8, the lifting device 7 of the present invention is a scissor hydraulic lifting platform and is provided with at least two sets of scissors 72, and joint pins 73 are welded between the upper ends and between the lower ends of the two sets of scissors 72. The middle bridge 1 in the present invention includes a middle bridge body and a middle bridge deck, the first skew bridge 2 includes a first skew bridge body and a first skew bridge deck, and the second skew bridge 3 includes a second skew bridge body and a second skew bridge deck; and the middle bridge body is the upper platform of the lifting device. Guardrails 10 are provided on left and right sides of first skew bridge 2, on left and right sides of middle bridge 1 and on left and right sides of second skew bridge 3, respectively, and anti-skid strips are provided on the first skew bridge deck, the second skew bridge deck and the middle bridge deck. Side plates 13 on both sides, and pulleys shafts 61 positioned between the side plates 13 on both sides, are provided below the first skew bridge 2 and the second skew bridge 3; the two ends of the pulley shafts 61 are welded with the side plates 13 on both sides; and a number of pulleys 6 which can be in contact with the ground are fixed on the pulley shafts 61. Eight positioning pinholes 51 of the columns 81 of the gantry frames 8 in the present invention correspond, from bottom to top, to tilt angles 4, 5, 6, 8, 10, 12, 15 and 18, respectively.

[0028] As shown in FIG. 1, FIG. 2, FIG. 3, the upper end of the first skew bridge 2 is hinged with one end of the middle bridge 1 and forms a first upper movable joint 21; and the first upper movable joint 21 includes a first tubular upper sleeve 23 that is sleeved on a hinge shaft 22 of the first upper movable joint. The deck on one side of the middle bridge 1 is extended onto the first upper sleeve and forms a first middle bridge extension 14, and the first middle bridge extension forms a fifth curved structure 15 matched with an upper surface of the first upper sleeve 23; the deck at the upper end of the first skew bridge 2 is extended onto the first upper sleeve 23 and forms a first upper bridge deck extension 24, and the first upper deck extension 24 forms a sixth curved structure 25 matched with a surface of the first upper sleeve 23. The upper end of the second skew bridge 3 is hinged with the other end of the middle bridge 1 and forms a second upper movable joint 31, and the second upper movable joint 31 includes a second tubular upper sleeve 33 that is sleeved on a hinge shaft 32 of the second upper movable joint; the deck on the other side of the middle bridge 1 is extended onto the second upper sleeve 33 and forms a second middle bridge extension 16, and the second middle bridge extension 16 forms a seventh curved structure 17 matched with the surface of the second upper sleeve 33; and the deck at the upper end of the second skew bridge 3 is extended onto the second upper sleeve 33 and forms a second upper bridge extension 34, and the second upper bridge extension 34 forms an eighth curved structure 35 matched with the surface of the second upper sleeve.

[0029] As shown in FIG. 1, FIG. 4 and FIG. 5, the first approach bridge 4 is hinged with the lower end of the first skew bridge 2 and forms a first lower movable joint 41, and the second approach bridge 5 is hinged with the lower end of the second skew bridge 3 and forms a second lower movable joint 51. The first lower movable joint 41 includes a first tubular lower sleeve 43 that is sleeved on a hinge shaft 42 of the first lower movable joint; the deck of the first approach bridge 4 is extended onto the first lower sleeve 43 and forms a first approach bridge deck extension 44, and the first approach bridge deck extension 44 forms a first curved structure 45 matched with an upper surface of the first lower sleeve 43; the deck at the lower end of the first skew bridge 2 is extended onto the first lower sleeve 43 and forms a first lower bridge deck extension 26, and the first lower bridge deck extension 26 forms a third curved structure 27 matched with a surface of the first lower sleeve 43. The second lower movable joint 51 includes a second tubular lower sleeve 53 that is sleeved on the hinge shaft 52 of the second lower movable joint; the deck of the second approach bridge 5 is extended onto the second lower sleeve 53 and forms a second approach bridge deck extension 54, and the second approach bridge deck extension 54 forms a second curved structure 55 matched with an upper surface of the second lower sleeve 53; and the deck at the lower end of the second skew bridge 3 is extended onto the second lower sleeve 53 and forms a second lower bridge deck extension 36, and the second lower bridge deck extension 36 forms a fourth curved structure 37 matched with a surface of the second lower sleeve 53. The climbing test bench for scooters of the present invention is especially arranged in a workshop in which scooters are produced, and a terrace should be paved on the ground of the workshop to avoid damage to the wheels of scooters.

[0030] Before performing a climbing test on scooters, the hydraulic lifting platform is controlled to adjust the height of the middle bridge so as to get a specific tilt angle, and then climbing tests at this tilt angle are performed on a batch of scooters.

[0031] Because of the presence of the first movable joint and the second lower movable joint, there is a small step formed between the first skew bridge and the first approach bridge and between the second skew bridge and the second approach bridge, making it convenient for a scooter to run to the first skew bridge from the first approach bridge via the first lower movable joint, or run to the second skew bridge from the second approach bridge via the second lower movable joint. By the above-mentioned arrangement of the present invention, no matter how large the tilt angle is, the first approach deck extension, the curved surface of the first lower sleeve of the first lower movable joint, and the first lower bridge deck extension form a curved round corner, and the second approach deck extension, the curved surface of the second lower sleeve of the second lower movable joint, and the second lower bridge deck extension form a curved round corner, thereby reducing the space between the first skew bridge and the first approach bridge and between the second skew bridge and the second approach bridge, and making it possible for wheels of a scooter to run over the lower movable joints so as to start performing a climbing test.

[0032] Because of the presence of the first upper movable joint and the second upper movable joint, there is a small step formed between the first skew bridge and the second skew bridge, and the two ends of the middle bridge, respectively, making it convenient for a scooter to run to the middle bridge from the first skew bridge via the first upper movable joint, or run to the middle bridge from the second skew bridge via the second upper movable joint. By the above-mentioned arrangement of the present invention, the first middle bridge extension, the curved surface of the first upper sleeve of the first upper movable joint, and the first upper bridge deck extension form a curved round corner, and the second middle bridge extension, the curved surface of the second upper sleeve of the second upper movable joint, and the second upper bridge deck extension form a curved round corner, thereby reducing the space between the first skew bridge and the middle bridge and between the second skew bridge and the middle bridge, and making it possible for wheels of a scooter to run over the upper movable joints to complete the climbing test.