Hollow glass built-in sun-shading apparatus

Abstract

The present invention relates to a built-in sun-shading device of hollow glass. The built-in sun-shading device comprises a cord-winding mechanism, a transmission mechanism controlling the rotation of the cord-winding mechanism and a sun-shading mechanism connected onto the cord-winding mechanism. The cord-winding mechanism comprises a cord-winding shaft, a group of cord-winding propellers are arranged on the cord-winding shaft, the transmission mechanism is connected with the cord-winding mechanism, and the sun-shading mechanism is connected onto the cord-winding propellers. The built-in sun-shading device of the hollow glass, which uses a single cord-winding shaft, can wind a plurality of cords and enable the sun-shading mechanism to be folded and unfolded in a balanced mode. The single cord-winding shaft does not need to move back and forth, is simple in terms of structure and has high assembling efficiency. In addition, the built-in sun-shading device of the hollow glass uses the cords to limit slats from moving to and fro, which thus enables the slats to stack up orderly, reduces contact between the slats and hollow glass, protects the coating film on the surface of the hollow glass and reduces friction. Furthermore, the built-in sun-shading device of the hollow glass uses a handle with frictional damping in one direction and overcomes a phenomenon that the large sun-shading mechanism may easily decline itself due to the large self-weight after being lifted.

Claims

1. A built-in sun-shading device of hollow glass, which comprises a cord-winding mechanism, a transmission mechanism controlling rotation of the cord-winding mechanism, and a sun-shading mechanism connected onto the cord-winding mechanism, further comprising: the cord-winding mechanism comprises a cord-winding shaft (1) having formed therein a plurality of shaft-wise grooves (101), a cord-winding propeller assembly (2) arranged to engage with an end of the cord-winding shaft (1), wherein the cord-winding propeller assembly (2) comprises a plurality of connection-guiding blocks (203) designed to engage individually with each of the plurality of shaft-wise grooves (101) on the cord-winding shaft (1) and wherein the transmission mechanism is connected with the cord-winding shaft (1), and the sun-shading mechanism is fastened onto the cord-winding propeller assembly (2).

2. The built-in sun-shading device of hollow glass in claim 1, which is further characterized in that: the plurality of shaft-wise grooves (101) are arranged circumferentially around the cord-winding shaft (1), the cord-winding shaft (1) being substantially circular in shape, and where the cord-winding propeller assembly (2) further comprises a plurality of hoops arranged around the cord-winding shaft (1), wherein a ladder-cord fastening slot (201) and a hoop fastening slot (202) are arranged on at least one of the plurality of hoops, and a plurality of connection-guiding blocks (203) are integrated into the hoops and match the grooves (101).

3. The built-in sun-shading device of hollow glass in claim 2, which is further characterized in that: the connection-guiding blocks (203) are tapered; the height of one end of each connection-guiding block is greater than the depth of a groove (101), and the height of the other end thereof is equal to or less than the depth of a groove (101).

4. The built-in sun-shading device of hollow glass in claim 1, which is further characterized in that: the transmission mechanism comprises an upper pulley (5), a lower pulley (9), a belt (6), an inner handle (7) and an outer handle (8); the upper pulley (5) and the lower pulley (9) are positioned discretely by an upper pulley supporting stand (4) and a lower pulley supporting stand (10), respectively, the two ends of the belt (6) are connected discretely with the two ends of the inner handle (7) so as to form a closed loop; the outer handle (8) comprises a shell (16) in which a plurality of roller mounting grooves (17) are arranged; rollers (15) are arranged inside the roller mounting grooves (17) and are loosely connected to the shell (16), and a plurality of magnets (18) are arranged inside the shell (16).

5. The built-in sun-shading device of hollow glass in claim 4, which is further characterized in that: the inner handle (7) and the outer handle (8) form a linkage under magnetic attraction.

6. The built-in sun-shading device of hollow glass in claim 4, which is further characterized in that: the rollers (15) comprise a rolling body (15a), and rolling shafts (15b) positioned on two sides of the rolling body (15a), holes (16a) matching the rolling shafts (15b) are disposed on the shell (16), and the holes (16a) have a kidney shape.

7. The built-in sun-shading device of hollow glass in claim 1, which is further characterized in that: the sun-shading mechanism comprises a group of slats (11), wherein the ladder-cords (12) serially hold the slats (11) and are connected with the cord-winding propeller assembly (2); pulling cords (13) are arranged at two ends of the slat (11), and the pulling cords (13) are vertically intertwined onto the ladder-cords (12), and one end of the pulling cords (13) is fixed on the cord-winding shaft (1).

8. The built-in sun-shading device of hollow glass in claim 7, which is further characterized in that: the ladder-cords (12) comprise two sections of side cords (12a) forming a closed loop via connection, and a group of horizontal bars (12b) connecting the two side cords; the pulling cord (13) and the horizontal bars (12b) are intertwined upward and are positioned restrictedly within the ladder-cords (12) by the side cords (12a).

9. The built-in sun-shading device of hollow glass in claim 1, which is further characterized in that: the sun-shading mechanism further comprises a pleated blind or a honeycomb blind.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) FIG. 1 illustrates a diagram of a structure of the present invention;

(2) FIG. 2 illustrates a diagram of the structure of the cord-winding mechanism of the present invention;

(3) FIG. 3 illustrates a diagram of an assembly structure of the cord-winding mechanism of the present invention;

(4) FIG. 4. illustrates a diagram of the structure of the cord-winding mechanism of the present invention;

(5) FIG. 5 illustrates a diagram of the structure of the outer handle of the present invention; and

(6) FIG. 6. illustrates a diagram of the structure of the pleated blinds of the present invention.

DETAILED DESCRIPTION OF THE INVENTION

(7) The present invention provides a built-in sun-shading device of hollow glass comprising a cord-winding mechanism, a transmission mechanism controlling the rotation of cord-winding mechanism, and a sun-shading mechanism connected onto the cord-winding mechanism.

(8) As shown in FIG. 2, the cord-winding mechanism comprises a cord-winding shaft 1 and a cord-winding propeller assembly 2 arranged around the cord-winding shaft 1; a plurality of shaft-wise grooves 101 are arranged on the cord-winding shaft 1; the cord-winding propeller assembly 2 comprises a plurality of connection-guiding blocks 203 designed to engage individually with each of the plurality of shaft-wise grooves 101 on the cord-winding shaft 1 and where the cord-winding propeller assembly 2 further comprises hoops arranged around the cord-winding shaft 1, wherein a ladder-cord fastening slot 201 and a hoop fastening slot 202 are arranged on the hoop. The connection-guiding blocks 203 are tapered; the height of one end of the connection-guiding block is greater than the depth of the groove 101, and the height of the other end thereof is equal to or less than the depth of the groove 101.

(9) As shown in FIG. 3 and FIG. 4, the cord-winding propeller assembly 2 is mounted around the cord-winding shaft 1, and the connection-guiding blocks are inserted into the grooves 101, such that the cord-winding propeller assembly 2 is positioned restrictedly on the cord-winding shaft 1 along the cord-winding propeller assembly's diametrical direction, at the meantime, the cord-winding propeller assembly 2 are jointly connected with a propeller-fastening stand 3, on which a joint block 301 corresponding to a joint slot and a base stand 302 for restricting the position of the cord-winding propeller assembly 2 is disposed. The propeller-fastening stand 3 is fastened into the upper bar (not shown), through which the propeller-fastening stand 3 is fastened onto the spacing bar 14 shown in FIG. 1.

(10) As shown in FIG. 1 and FIG. 5, the transmission mechanism is connected with the cord-winding shaft 1; the transmission mechanism comprises an upper pulley 5, a lower pulley 9, a belt 6, an inner handle 7 and an outer handle 8; the upper pulley 5 and the lower pulley 9 are discretely positioned by an upper pulley supporting stand 4 and a lower pulley supporting stand 10; the upper pulley supporting stand 4 and the lower pulley supporting stand 10 are discretely fastened on the upper section and the lower section of the spacing bar 14; the two ends of the belt 6 are connected respectively with the two ends of the inner handle 7 and form a closed loop; the inner handle 7 and the outer handle 8 form linkage under magnetic attraction; the outer handle 8 comprises a shell 16 in which a group of roller installing bearings 17 are arranged; the rollers 15 are arranged inside the roller installing bearings 17 and are loosely connected with the shell 16; and a group of magnets 18 are disposed inside the shell 16. The roller 15 comprises a rolling body 15a and rolling shafts 15b positioned on two sides of the rolling body 15a; rolling shaft holes 16a matching the rolling shafts 15b are disposed on the shell 16, and the rolling shaft holes 15b are in a kidney shape. When the outer handle 8 is operated to slide downward so as to stack up the slats 11, the rolling shafts 15b turn in a counter-clockwise direction and go upward till reaching the top of the rolling shaft holes 16; in this case, there is a gap between the rolling body 15b and the inner wall of the upper section of the roller mounting grooves 17, and this reduces friction and enables the operator to lift the pleated blind easily. When the outer handle 8 is lifted up, the rolling shafts 15b turn in a clockwise direction and go downward till reaching the bottom of the rolling-shaft holes 16a; in this case, the rolling shafts 15b can turn freely in the rolling-shaft holes 16a, while some friction arises because the rolling body 15a comes into contact with the inner wall of the lower section of the roller mounting grooves 17, therefore, the slats would not lower themselves automatically under the effect of its weight.

(11) As shown in FIG. 3 and FIG. 6, the sun-shading mechanism comprises a group of slats, or even pleated slats, 11, ladder-cords 12 serially hold each slat 11 and are constrained in the ladder-cord fastening slot 201; pulling cords 13 are arranged on both sides of the slat 11, and the pulling cords are vertically intertwined onto the ladder-cords 12, while one end of the pulling cord 13 is fastened onto the cord-winding shaft 1. The ladder-cords 12 comprises two sections of side cords 12a forming a closed loop via connection and a group of horizontal bars 12b connecting these two sections of the side cords 12a; the pulling cords 13 and the horizontal bars 12b are intertwined upwards and are positioned restrictedly within the ladder-cords by the side cords 12a. The pulling cords 13 restricts the slats 11 from moving back and forth, such that the slats may stack up orderly, which therefore reduces contact with the hollow glass so as to protect the coating on the surface of the hollow glass and to reduce friction. In case of winding cords, since the connection-guiding blocks 203 are tapered, the pulling cord 13 wound earlier on the cord-winding shaft will be push out by the pulling cord wound later and will be wound orderly on the cord-winding shaft 1. However, it is necessary to clarify that only one pulling cord is exemplified in the drawings, while in practice two pulling cords are wound discretely on two sides of the cord-winding propeller assembly 2. Additionally, the sun-shading mechanism of the present invention may further adopt pleated blinds or honeycomb blinds.

(12) The above embodiment is set out for the purpose of not limiting the scope of the present invention but merely illustrating the inventive idea and characteristics of the present invention with the objective of assisting those skilled people in the art to further their understanding and application of the present invention. Various alternations and modifications may be made without departing from the spirit and broader aspects of the present invention as set forth in the appended claims.