Air bag brake mechanism

Abstract

An air bag brake mechanism is characterized in that the air bag brake mechanism comprises an auxiliary brake mechanism (100) and a wheelchair structure (200), the auxiliary brake mechanism (100) is installed on the wheelchair structure (200) on the market, and then an air bag is manually controlled to control contact between the auxiliary brake mechanism (100) and the ground so as to control fixation or freedom of a wheelchair. Wherein the wheelchair structure (200) is provided for a common wheelchair which is not in the range of the patent but is only convenient to describe the auxiliary braking mechanism of the patent. The auxiliary braking mechanism has the beneficial effects that 1, the belt wheel seat is fixed through the auxiliary braking mechanism, and the chair is prevented from sliding; 2, a person does not need to bend down to fix a similar traditional brake wheel to fix the wheelchair, and the fixation or freedom of the wheelchair can be controlled only by manually controlling the air bag; 3, a pure mechanical structure is adopted, electric appliance auxiliary control is not needed, and performance is reliable and safe;

Description

Technical Field

[0001] The invention relates to an air bag brake mechanism in furniture, tables and chairs and other related fields. Background Art

[0002] Tables and chairs are essential furniture for humans. Due to their large size, they are relatively heavy and inconvenient to move. Therefore, casters are installed on the legs for easy mobility. However, the disadvantage is that the casters will move on their own when they do not need to be moved. The traditional solution is to add a brake function to the casters to achieve the purpose of braking. However, it is inconvenient to operate the brake wheel when a person is sitting on the chair. Secondly, the contact area of ​​the brake wheel is small, so the braking effect is limited. Summary of the Invention

[0003] In view of the above problems, the present invention proposes an airbag brake mechanism, which can well solve the above problems.

[0004] As stated Figure 1 , 3, 4, 5, 6, 7 Its features include: an auxiliary braking mechanism (100), a wheelchair structure (200), the auxiliary braking mechanism (100) is installed on a wheelchair structure (200) that is available on the market, and then the contact between the auxiliary braking mechanism (100) and the ground is controlled by manually controlling the airbag to control the fixation or freedom of the wheelchair, wherein the wheelchair structure (200) is an ordinary wheelchair and is not within the scope of this patent, but is given for the convenience of describing the auxiliary braking mechanism of this patent.

[0005] further

[0006] As stated Figure 1, 3, 4, 5, 6, 7, the auxiliary braking mechanism (100) includes: an upper fixed plate (101), a movable plate (102), a lower fixed plate (103), a brake plate (104), an anti-slip pad (105), a pillar (106), a locking bolt (107), an airbag (108), an air tube (109), a manual airbag (110), an airbag valve (111), an air tube cabin (112), a brake connecting shaft (113), a linear bearing (114), a return spring (115), and a connecting bolt (116), wherein the connection description of each part is as follows: the upper fixed plate (101) and the lower fixed plate (103) are connected to form a fixed cage through the pillar (106) with a locking bolt (107), and the movable plate (102) is sleeved on the pillar (106) with a diameter of the upper fixed plate (101) and the lower fixed plate (103). 06), the airbag (108) is installed on the movable plate (102), the return spring (115) is installed under the movable plate (102), the tracheal cabin (112) is welded to the movable plate (102) to form an integral structure, the linear bearing (114) is embedded in the lower fixed plate (103), the brake connecting shaft (113) and the brake plate (104) are fixed to the tracheal cabin (112) through the linear bearing (114) by the connecting bolt (116), and the movable plate (102), the tracheal cabin (112), the linear bearing (114), the brake plate (104), the anti-slip pad (105) and the connecting bolt (116) are connected to form a movable integral structure, and the airbag (108) is connected to the manual inflatable bag (110) through the trachea (109) and the airbag valve (111).

[0007] further

[0008] As stated Figure 6 , as shown in FIG7 , after the manual inflatable bag (110) ventilates the air bag (108) through the air bag valve (111) and the trachea (109), the air bag (108) pushes the movable plate (102) to move downward. Since the movable plate (102), the trachea cabin (112), the linear bearing (114), the brake plate (104), the anti-skid pad (105) and the connecting bolt (116) form an integral structure, the anti-skid pad (105) moves downward to press the ground to generate horizontal friction to achieve a braking effect. Figure 7 As shown, when the airbag valve (111) is opened, the movable plate (102) is pushed upward by the action of the return spring (115), thereby driving the anti-slip mat (105) to move online and fall off the ground, and the friction force disappears.

[0009] further

[0010] As stated Figure 1, 2, 6, 7 The wheelchair structure (200) is characterized by: a wheelchair frame (201), a seat connecting shaft (202), and rolling casters (203). This part is just a traditional chair leg structure given for the convenience of explaining the brake and is not the object of protection of this patent.

[0011] Beneficial effects of the present invention

[0012] 1. The wheeled seat is fixed by the auxiliary braking mechanism to prevent the chair from sliding.

[0013] 2. People do not need to bend over to fix the wheelchair like traditional brake wheels, but only need to manually control the airbag to control the fixation or freedom of the wheelchair.

[0014] 3. Pure mechanical structure, no need for electrical auxiliary control, reliable and safe performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0016] Figure 1 .Assembly diagram.

[0017] Figure 2 . Schematic diagram of wheelchair structure.

[0018] Figure 3 .Schematic diagram of auxiliary brake mechanism Figure 1 .

[0019] Figure 4 .Schematic diagram of auxiliary brake mechanism Figure 2 .

[0020] Figure 5 .Schematic diagram of the ventilation system.

[0021] Figure 6 .Cross-section view of the reset position.

[0022] Figure 7 .Brake position cross-section.

[0023] 100. Auxiliary braking mechanism.

[0024] 101.Upper fixed plate.

[0025] 102. Movable board.

[0026] 103.Lower fixing plate.

[0027] 104. Brake plate.

[0028] 105. Anti-slip mat.

[0029] 106. Pillar.

[0030] 107.Tighten the bolts.

[0031] 108. Airbag.

[0032] 109. Trachea.

[0033] 110. Manually inflated airbag.

[0034] 111. Airbag valve.

[0035] 112. Tracheal compartment.

[0036] 113. Brake connecting shaft.

[0037] 114.Linear bearings.

[0038] 115.Return spring.

[0039] 116.Connecting bolts.

[0040] 200. Wheelchair structure.

[0041] 201. Wheelchair frame.

[0042] 202.Seat connecting shaft.

[0043] 203.Rolling casters. DETAILED DESCRIPTION

[0044] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field are within the scope of protection of the present invention.

[0045] As stated Figure 1, 3, 4, 5, 6, 7, the auxiliary braking mechanism (100) includes: an upper fixed plate (101), a movable plate (102), a lower fixed plate (103), a brake plate (104), an anti-slip pad (105), a pillar (106), a locking bolt (107), an airbag (108), an air tube (109), a manual airbag (110), an airbag valve (111), an air tube cabin (112), a brake connecting shaft (113), a linear bearing (114), a return spring (115), and a connecting bolt (116), wherein the connection description of each part is as follows: the upper fixed plate (101) and the lower fixed plate (103) are connected to form a fixed cage through the pillar (106) with a locking bolt (107), and the movable plate (102) is sleeved on the pillar (106) with a diameter of the upper fixed plate (101) and the lower fixed plate (103). 06), the airbag (108) is installed on the movable plate (102), the return spring (115) is installed under the movable plate (102), the tracheal cabin (112) is welded to the movable plate (102) to form an integral structure, the linear bearing (114) is embedded in the lower fixed plate (103), the brake connecting shaft (113) and the brake plate (104) are fixed to the tracheal cabin (112) through the linear bearing (114) by the connecting bolt (116), and the movable plate (102), the tracheal cabin (112), the linear bearing (114), the brake plate (104), the anti-slip pad (105) and the connecting bolt (116) are connected to form a movable integral structure, and the airbag (108) is connected to the manual inflatable bag (110) through the trachea (109) and the airbag valve (111).

[0046] further

[0047] As stated Figure 6 , as shown in FIG7 , after the manual inflatable bag (110) ventilates the air bag (108) through the air bag valve (111) and the trachea (109), the air bag (108) pushes the movable plate (102) to move downward. Since the movable plate (102), the trachea cabin (112), the linear bearing (114), the brake plate (104), the anti-skid pad (105) and the connecting bolt (116) form an integral structure, the anti-skid pad (105) moves downward to press the ground to generate horizontal friction to achieve a braking effect. Figure 7 As shown, when the airbag valve (111) is opened, the movable plate (102) is pushed upward by the action of the return spring (115), thereby driving the anti-slip mat (105) to move online and fall off the ground, and the friction force disappears.

[0048] As described above, by means of the above technical solution of the present invention, the present invention has the following advantages:

[0049] 1. The wheeled seat is fixed by the auxiliary braking mechanism to prevent the chair from sliding.

[0050] 2. People do not need to bend over to fix the wheelchair like traditional brake wheels, but only need to manually control the airbag to control the fixation or freedom of the wheelchair.

[0051] 3. Pure mechanical structure, no need for electrical auxiliary control, reliable and safe performance.

[0052] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An airbag brake mechanism, characterized by: An upper fixed plate (101), a movable plate (102), a lower fixed plate (103), a brake plate (104), an anti-slip pad (105), a pillar (106), a locking bolt (107), an airbag (108), an air tube (109), a manual airbag (110), an airbag valve (111), an air tube cabin (112), a brake connecting shaft (113), a linear bearing (114), a return spring (115), and a connecting bolt (116), wherein the connection description of each part is as follows: the upper fixed plate (101) and the lower fixed plate (103) are connected to form a fixed cage body by means of a locking bolt (107) through the pillar (106), the movable plate (102) is mounted on the pillar (106) of the diameter of the upper fixed plate (101) and the lower fixed plate (103), and the airbag (108) is installed. A return spring (115) is installed on the movable plate (102) and below the movable plate (102). The air tube cabin (112) is welded to the movable plate (102) to form an integral structure. The linear bearing (114) is embedded in the lower fixed plate (103). The brake connecting shaft (113) and the brake plate (104) are fixed to the air tube cabin (112) through the linear bearing (114) by connecting bolts (116). Through the connection of various components, the movable plate (102), the air tube cabin (112), the linear bearing (114), the brake plate (104), the anti-slip pad (105) and the connecting bolts (116) are formed into a movable integral structure. The air bag (108) is connected to the manual inflatable bag (110) through the air pipe (109) and the air bag valve (111).

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