Pressured braking wheel

Abstract

A pressured braking wheel includes a wheel seat, an axle sleeve, a first wheel rim and a second wheel rim. The wheel seat has an accommodation space and a braking tenon. The axle sleeve is arranged in the accommodation space and sleeves a wheel axle. Inner sides of the first wheel rim and the second wheel rim are respectively annularly provided with first tenon grooves and second tenon grooves. The first wheel rim and the second wheel rim pivotally connect with the axle sleeve through the wheel axle. The first tenon groove and the second tenon groove are arranged under the braking tenon. When the wheel seat is pressed down, the wheel seat inserts the braking tenon into the first tenon groove and the second tenon groove, so as to prevent the first wheel rim and the second wheel rim from rotating with respect to the wheel seat.

Claims

1. A pressured braking wheel comprising: a wheel seat with an upper part thereof penetrated with an accommodation space and a lower part thereof having a braking tenon; an axle sleeve penetrated with an axle hole, and said axle hole sleeves a wheel axle, and said axle sleeve is arranged on said wheel seat and in said accommodation space; an elastic body arranged on a top of said axle sleeve and in said accommodation space and abutting against said wheel seat; a first wheel rim coaxially fixed to a first hollow sleeve, and an inner side of said first wheel rim is annularly provided with a plurality of first tenon grooves, and said first hollow sleeve sleeves said wheel axle and pivotally connects with said axle hole through said wheel axle, and said first tenon groove is arranged under said braking tenon; a second wheel rim coaxially fixed to a second hollow sleeve, and an inner side of said second wheel rim is annularly provided with a plurality of second tenon grooves, and said second hollow sleeve sleeves said wheel axle and pivotally connects with said axle hole through said wheel axle, and said first wheel rim and said second wheel rim are respectively arranged at two opposite sides of said wheel seat, and said second tenon groove is arranged under said braking tenon, and when said wheel seat is pressed down by an external force, said wheel seat pushes against said elastic body to insert said braking tenon into said first tenon groove and said second tenon groove, so as to prevent said first wheel rim, said first hollow sleeve, said second wheel rim and said second hollow sleeve from rotating with respect to said wheel seat, and when said external disappears, said elastic body pushes against said wheel seat to separate said braking tenon from said first tenon groove and said second tenon groove, so as to rotate said first wheel rim, said first hollow sleeve, said second wheel rim and said second hollow sleeve with respect to said wheel seat; and a first axle sleeve cover penetrated with a first through hole, and a largest hole diameter of said first through hole is larger than a largest cross-section diameter of said wheel axle, and said wheel axle penetrates through said first through hole, and said first axle sleeve cover is fixed to said wheel seat using a plurality of fixing members, and said first axle sleeve cover is arranged between said wheel seat and said first wheel rim.

2. The pressured braking wheel according to claim 1, wherein said first axle sleeve cover is further penetrated with a plurality of first fixing holes, and said first fixing holes are arranged around said first through hole, and said fixing members respectively penetrate through said first fixing holes, and said fixing members are fixed to said wheel seat, so as to fix said first axle sleeve cover to said wheel seat.

3. The pressured braking wheel according to claim 2, wherein said fixing members are screws, and said first fixing holes are screw holes.

4. The pressured braking wheel according to claim 2, further comprising a second axle sleeve cover penetrated with a second through hole, and a largest hole diameter of said second through hole is larger than said largest cross-section diameter of said wheel axle, and said wheel axle penetrates through said second through hole, and said wheel seat is further penetrated with a plurality second fixing holes, and said fixing members respectively penetrate through said second fixing holes, and said fixing members are fixed to said second axle sleeve cover, so as to fix said second axle sleeve cover to said wheel seat, and said second axle sleeve cover is arranged between said wheel seat and said second wheel rim.

5. The pressured braking wheel according to claim 4, wherein said second axle sleeve cover is further penetrated with a plurality of third fixing holes, and said third fixing holes are arranged around said second through hole, and said fixing members are respectively inserted into said third fixing holes, and said fixing members are fixed to said wheel seat, so as to fix said second axle sleeve cover to said wheel seat.

6. The pressured braking wheel according to claim 5, wherein said fixing members are screws, and said second fixing holes and said third fixing holes are screw holes.

7. The pressured braking wheel according to claim 1, wherein said top of said axle sleeve extends upward to form a post, and said elastic body is arranged on said post.

8. The pressured braking wheel according to claim 1, wherein said braking tenon has a shape of an arc or a wedge.

9. The pressured braking wheel according to claim 1, wherein said elastic body is a spring.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) FIG. 1 is a perspective view of a pressured braking wheel according to an embodiment of the present invention;

(2) FIG. 2 is an exploded view of a pressured braking wheel according to an embodiment of the present invention;

(3) FIG. 3 is a sectional view of a pressured braking wheel taken along Line A-A of FIG. 1;

(4) FIG. 4 is a sectional view of a pressured braking wheel taken along Line B-B of FIG. 1;

(5) FIG. 5 is a diagram schematically showing related positions of a first wheel rim, an axle sleeve and a wheel seat when an external force is not applied according to an embodiment of the present invention;

(6) FIG. 6 is a diagram schematically showing related positions of a second wheel rim, an axle sleeve and a wheel seat when an external force is not applied according to an embodiment of the present invention;

(7) FIG. 7 is a diagram schematically showing related positions of a first wheel rim, an axle sleeve and a wheel seat when an external force is applied according to an embodiment of the present invention; and

(8) FIG. 8 is a diagram schematically showing related positions of a second wheel rim, an axle sleeve and a wheel seat when an external force is applied according to an embodiment of the present invention.

DETAILED DESCRIPTION OF THE INVENTION

(9) Reference will now be made in detail to embodiments illustrated in the accompanying drawings. Wherever possible, the same reference numbers are used in the drawings and the description to refer to the same or like parts. In the drawings, the shape and thickness may be exaggerated for clarity and convenience. This description will be directed in particular to elements forming part of, or cooperating more directly with, methods and apparatus in accordance with the present disclosure. It is to be understood that elements not specifically shown or described may take various forms well known to those skilled in the art. Many alternatives and modifications will be apparent to those skilled in the art, once informed by the present disclosure.

(10) Refer to FIG. 1, FIG. 2, FIG. 3 and FIG. 4 to introduce a pressured braking wheel of the present invention. The pressured braking wheel of the present invention comprises a wheel seat 10, an axle sleeve 12, an elastic body 14, a first wheel rim 16, a second wheel rim 18, a first axle sleeve cover 20, a second axle sleeve cover 22 and a plurality of fixing members 24. For example, the elastic body 14 is a spring. An upper part of the wheel seat 10 is penetrated with an accommodation space 26 and a lower part of the wheel seat 10 has a braking tenon 28. For example, the braking tenon 28 has a shape of an arc or a wedge. The axle sleeve 12 is penetrated with an axle hole 30, and the axle hole 30 sleeves a wheel axle 32, and the axle sleeve 12 is arranged on the wheel seat 10 and in the accommodation space 26. Besides, a top of the axle sleeve 12 extends upward to form a post 34, and the elastic body 14 is arranged on the post 34. The elastic body 14 is arranged on the top of the axle sleeve 12 and in the accommodation space 26 and abuts against the wheel seat 10. The first wheel rim 16 is coaxially fixed to a first hollow sleeve 36, and an inner side of the first wheel rim 16 is annularly provided with a plurality of first tenon grooves 38, and the first hollow sleeve 36 sleeves the wheel axle 32 and pivotally connects with the axle hole 30 through the wheel axle 32, and the first tenon groove 38 is arranged under the braking tenon 28. The second wheel rim 18 is coaxially fixed to a second hollow sleeve 40, and an inner side of the second wheel rim 18 is annularly provided with a plurality of second tenon grooves 42, and the second hollow sleeve 40 sleeves the wheel axle 32 and pivotally connects with the axle hole 30 through the wheel axle 32, and the first wheel rim 16 and the second wheel rim 18 are respectively arranged at two opposite sides of the wheel seat 10, and the second tenon groove 42 is arranged under the braking tenon 28. When the wheel seat 10 is pressed down by an external force, the wheel seat 10 pushes against the elastic body 14 to insert the braking tenon 28 into the first tenon groove 38 and the second tenon groove 42, so as to prevent the first wheel rim 16, the first hollow sleeve 36, the second wheel rim 18 and the second hollow sleeve 40 from rotating with respect to the wheel seat 10. When the external disappears, the elastic body 14 pushes against the wheel seat 10 to separate the braking tenon 28 from the first tenon groove 38 and the second tenon groove 42, so as to rotate the first wheel rim 16, the first hollow sleeve 36, the second wheel rim 18 and the second hollow sleeve 40 with respect to the wheel seat 10.

(11) The first axle sleeve cover 20 is penetrated with a first through hole 44 and a plurality of first fixing holes 46, and the first fixing holes 46 are arranged around the first through hole 44. The largest hole diameter of the first through hole 44 is larger than the largest cross-section diameter of the wheel axle 32, whereby the wheel axle 32 penetrates through the first through hole 44. The first through hole 44 is used to limit the space that the wheel axle 32 moves. The wheel seat 10 is further penetrated with a plurality second fixing holes 48. The second axle sleeve cover 22 is penetrated with a second through hole 50 and a plurality of third fixing holes 52. The third fixing holes 52 are arranged around the second through hole 50. The largest hole diameter of the second through hole 50 is larger than the largest cross-section diameter of the wheel axle 32, whereby the wheel axle 32 penetrates through the second through hole 50. The second through hole 50 is used to limit the space that the wheel axle 32 moves. The fixing members 24 respectively penetrate through the first fixing holes 46 of the first axle sleeve cover 20, respectively penetrate through the second fixing holes 48 of the wheel seat 10, and are respectively fixed to the second fixing holes 48 and respectively fixed to the third fixing holes 52 of the second axle sleeve cover 22, whereby the first axle sleeve cover 20 and the second axle sleeve cover 22 are fixed to the wheel seat 10, and whereby the first axle sleeve cover 20 is arranged between the wheel seat 10 and the first wheel rim 16, and whereby the second axle sleeve cover 22 is arranged between the wheel seat 10 and the second wheel rim 18. For example, the fixing members 24 are screws, and the first fixing holes 46 and the second fixing holes 48 and the third fixing holes 52 are screw holes.

(12) The operation of the pressured braking wheel of the present invention is introduced as below. Refer to FIG. 5 and FIG. 6. Firstly, when the wheel seat 10 does not receive any pressure, the elastic body 14 pushes against the wheel seat 10 to separate the braking tenon 28 from the first tenon groove 38 and the second tenon groove 42, so as to rotate the first wheel rim 16, the first hollow sleeve 36, the second wheel rim 18 and the second hollow sleeve 40 with respect to the wheel seat 10. For example, the wheel seat 10 of the pressured braking wheel of the present invention is installed on a bottom of a computer chair. When a user uses the computer chair, the user moves the computer chair to a fixed position using the pressured braking wheel. Then, as shown in FIG. 7 and FIG. 8, the user sits on the computer chair, whereby the wheel seat 10 is pressed down by an external force. Simultaneously, the wheel seat 10 pushes against the elastic body 14 to insert the braking tenon 28 into the first tenon groove 38 and the second tenon groove 42, so as to prevent the first wheel rim 16, the first hollow sleeve 36, the second wheel rim 18 and the second hollow sleeve 40 from rotating with respect to the wheel seat 10. As a result, the computer chair is fixed to the fixed position to conveniently achieve braking in a humanistic way, and the user can concentrate on using a computer. If the user leaves the computer, the external force disappears. Simultaneously, as shown in FIG. 5 and FIG. 6, the elastic body 14 pushes against the wheel seat 10 to separate the braking tenon 28 from the first tenon groove 38 and the second tenon groove 42, so as to rotate the first wheel rim 16, the first hollow sleeve 36, the second wheel rim 18 and the second hollow sleeve 40 with respect to the wheel seat 10.

(13) In conclusion, the present invention inserts the braking tenon into the tenon grooves of the first wheel rim and the second wheel rim, so as to achieve the braking purpose in a humanistic way.

(14) The embodiments described above are only to exemplify the present invention but not to limit the scope of the present invention. Therefore, any equivalent modification or variation according to the shapes, structures, features, or spirit disclosed by the present invention is to be also included within the scope of the present invention.