A caster with dual brake control

Abstract

The present invention discloses a caster controlled by double brakes, which comprises a caster body. The caster body includes a wheel frame and a roller. The roller is rotatably connected to the wheel frame. A brake assembly is arranged on the wheel frame. The brake assembly includes a first rotating part, a second rotating part and a third rotating part. The first rotating part, the second rotating part and the third rotating part are all rotatably connected to the wheel frame. One end of the first rotating part is provided with a first pressing part, and the other end of the first rotating part can abut against a limiting block on the second rotating part. The second rotating part is located below the first rotating part. One end of the second rotating part away from the limiting block is provided with a braking part, and the braking part can abut against the roller. One end of the third rotating part is provided with a jacking part, and the other end of the third rotating part is provided with a second pressing part. When the first pressing part is pressed, the first rotating part abuts against the roller. Compared with the prior art, the present invention can solve the problem that the existing caster brake assembly fixes the roller unstably.

Description

Technical Field

[0001] The present invention relates to the field of casters, and particularly to a caster with dual-brake control. Background Art

[0002] Casters are commonly used products, usually installed at the bottom of furniture, carts and other appliances, enabling the appliances to move flexibly and conveniently. Since the appliances need to remain stationary after movement, a braking mechanism is provided on the casters.

[0003] Some existing casters are equipped with a braking mechanism. After the braking mechanism locks the caster, it takes a great deal of effort to unlock the braking mechanism. Some require manual bending to unlock the braking mechanism manually, which brings inconvenience to the user; some braking mechanisms do not fix the rollers stably, and the fixed rollers still roll, increasing the potential safety hazard. Summary of the Invention

[0004] The purpose of the present invention is to provide a caster with dual-brake control to solve the problem that the braking component of the existing caster does not fix the rollers stably, increasing the potential safety hazard.

[0005] To achieve the above purpose, the present invention provides a caster with dual-brake control, which includes a caster body. The caster body includes a wheel frame and a roller. The roller is rotatably connected to the wheel frame. A braking component is provided on the wheel frame. The braking component includes a first rotating part, a second rotating part and a third rotating part. The first rotating part, the second rotating part and the third rotating part are all rotatably connected to the wheel frame. One end of the first rotating part is provided with a first pressing part, and the other end of the first rotating part can abut against a limiting block on the second rotating part. The second rotating part is located below the first rotating part. One end of the second rotating part away from the limiting block is provided with a braking part, and the braking part can abut against the roller. One end of the third rotating part is provided with a jacking part, and the other end of the third rotating part is provided with a second pressing part. When the first pressing part is pressed, the first rotating part abuts against the roller, and the first rotating part rotates downward and presses the second rotating part to make the braking part abut against the roller; when the second pressing part is pressed, the jacking part jacks up the first rotating part, the first rotating part abuts against the limiting block and drives the second rotating part to rotate, so that the braking part is separated from the roller.

[0006] As a further description of the above technical solution:

[0007] A first connecting shaft is provided on the wheel frame, and the first rotating part and the second rotating part are both rotatably connected to the wheel frame through the first connecting shaft.

[0008] As a further description of the above technical solution:

[0009] A second connecting shaft is provided on the wheel carrier, and the roller is rotatably connected to the second connecting shaft.

[0010] As a further description of the above technical solution:

[0011] The third rotating part is rotatably connected to the second connecting shaft, and the third rotating part is located on the surface of the wheel carrier.

[0012] As a further description of the above technical solution:

[0013] An abutting plate is provided on one side of the first rotating part, and the abutting plate is located above the jacking part.

[0014] As a further description of the above technical solution:

[0015] The abutting plate and the first rotating part are of an integral structure.

[0016] As a further description of the above technical solution:

[0017] A limiting plate is provided on the second rotating part, and the limiting plate and the second rotating part are of an integral structure.

[0018] As a further description of the above technical solution:

[0019] The limiting block is formed by stamping, and the limiting block and the second rotating part are of an integral structure.

[0020] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are as follows:

[0021] By providing a brake assembly on the caster body of the present invention, the caster can be braked more stably. When the caster body is braked, the first pressing part can be stepped on with the foot, so that the first rotating part rotates downward. The first rotating part presses down the second rotating part, and the second rotating part rotates downward, so that the braking part abuts against the roller to fix the roller. When the first rotating part rotates to the lowest position, the first rotating part also abuts against the roller to achieve secondary fixation of the roller, improving the braking effect. When braking, the first rotating part presses down the jacking part, so that the second pressing part rises; when releasing the brake, step on the second pressing part, and the third rotating part rotates around the first connecting shaft. At this time, the jacking part rises to jack up the first rotating part, and the first rotating part rotates in the reverse direction. After the first rotating part rotates to a certain angle, one end of the first rotating part abuts against the limiting block. At this time, the first rotating part pushes the second rotating part to rotate, so that the braking part is separated from the roller to achieve brake release; throughout the whole process of braking and releasing the brake, only the foot needs to be stepped on, which is simple and convenient. Description of the Drawings

[0022] To more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for use in the embodiments. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other related drawings can also be obtained based on these drawings.

[0023] Figure 1 It is a schematic structural diagram of a caster with double brake control.

[0024] Figure 2 It is a schematic structural diagram of the first rotating part in a caster with double brake control.

[0025] Figure 3 It is a schematic structural diagram of the third rotating part in a caster with double brake control.

[0026] Figure 4 It is a cross-sectional view of the second rotating part in a caster with double brake control.

[0027] Legend description:

[0028] 1. Wheel frame; 2. Roller; 3. First rotating part; 31. First pressing part; 4. Second rotating part; 5. Third rotating part; 6. Limiting block; 7. Brake part; 8. Lifting part; 9. Second pressing part; 10. First connecting shaft; 11. Second connecting shaft; 12. Abutting plate; 13. Limiting plate. Detailed implementation manners

[0029] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. Usually, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0030] Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed present invention, but merely represents the selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0031] It should be noted that: similar reference numerals and letters represent similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0032] In the description of the embodiments of the present invention, it should be noted that the orientation or positional relationship indicated by terms such as "upper", "inner", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the invention is usually placed during use. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the present invention.

[0033] In the description of the present invention, it should also be noted that unless otherwise clearly defined and limited, the terms "set", "installed", "connected", and "coupled" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0034] Please refer to Figures 1-4 , the present invention provides a caster with double brake control, including a caster body. The caster body includes a wheel frame 1 and a roller 2. The roller 2 is rotatably connected to the wheel frame 1. A brake assembly is provided on the wheel frame 1. The brake assembly includes a first rotating part 3, a second rotating part 4, and a third rotating part 5. The first rotating part 3, the second rotating part 4, and the third rotating part 5 are all rotatably connected to the wheel frame 1. One end of the first rotating part 3 is provided with a first pressing part 31, and the other end of the first rotating part 3 can abut against a limiting block 6 on the second rotating part 4. The second rotating part 4 is located below the first rotating part 3. One end of the second rotating part 4 away from the limiting block 6 is provided with a braking part 7. The braking part 7 can abut against the roller 2. One end of the third rotating part 5 is provided with a jacking part 8, and the other end of the third rotating part 5 is provided with a second pressing part 9. When pressing the first pressing part 31, the first rotating part 3 abuts against the roller 2, and the first rotating part 3 rotates downward and presses the second rotating part 4 to make the braking part 7 abut against the roller 2; when pressing the second pressing part 9, the jacking part 8 jacks up the first rotating part 3, the first rotating part 3 abuts against the limiting block 6 and drives the second rotating part 4 to rotate, so that the braking part 7 is separated from the roller 2.

[0035] In the present invention, the first rotating part 3, the second rotating part 4, and the third rotating part 5 are all formed by sheet metal stamping, which is convenient for production and manufacturing.

[0036] A first connecting shaft 10 is provided on the wheel carrier 1, and both the first rotating part 3 and the second rotating part 4 are rotatably connected to the wheel carrier 1 through the first connecting shaft 10. The first rotating part and the second rotating part rotate coaxially through the first connecting shaft, which facilitates the linkage control between the first rotating part and the second rotating part. It can also reduce the components installed on the caster body, making the structure of the caster body more compact. The first connecting shaft is a damping rotating shaft. After the first rotating part and the second rotating part are braked and the foot is released, the first rotating part and the second rotating part will not rotate by themselves, improving the stability of braking.

[0037] A second connecting shaft 11 is provided on the wheel carrier 1, and the roller 2 is rotatably connected to the second connecting shaft 11. It can facilitate the fixation of the third rotating part without using a separate rotating connection component for the third rotating part, reducing the number of parts used, and thus reducing the production cost.

[0038] The third rotating part 5 is rotatably connected to the second connecting shaft 11, and the third rotating part 5 is located on the surface of the wheel carrier 1. This facilitates the user to control the rotation of the third rotating part.

[0039] An abutting plate 12 is provided on one side of the first rotating part 3, and the abutting plate 12 is located above the jacking part 8. The abutting plate 12 and the first rotating part 3 are of an integral structure. The side of the first rotating part is bent outward to form the abutting plate, which is convenient for cooperating with the jacking part, so as to facilitate the first rotating part to press down the third rotating part, and the third rotating part to jack up the first rotating part through the jacking part.

[0040] A limiting plate 13 is provided on the second rotating part 4, and the limiting plate 13 and the second rotating part 4 are of an integral structure. When braking is completed, the first side 32 of the first rotating part abuts against the limiting plate, which can prevent the first rotating part from continuing to rotate and play a limiting role. When the braking is released, the second side 33 of the first rotating part abuts against the limiting plate, which can prevent the first rotating part from continuing to rotate and play a limiting role. Therefore, the limiting plate can control the rotation angle of the first rotating part and achieve the purpose of protecting the first rotating part.

[0041] The limiting block 6 is formed by stamping, and the limiting block 6 and the second rotating part 4 are of an integral structure.

[0042] Working principle: By setting a braking component on the caster body of the present invention, the caster braking can be made more stable. When the caster body brakes, the first pressing part can be stepped on with the foot, so that the first rotating part rotates downward. The first rotating part presses down the second rotating part, and the second rotating part rotates downward, so that the braking part abuts against the roller to fix the roller. When the first rotating part rotates to the lowest position, the first rotating part also abuts against the roller to achieve secondary fixation of the roller, improving the braking effect. When braking, the first rotating part presses up the lifting part, so that the second pressing part rises; when releasing the brake, step on the second pressing part, and the third rotating part rotates around the first connecting shaft. At this time, the lifting part rises to lift the first rotating part, and the first rotating part rotates in the reverse direction. After the first rotating part rotates to a certain angle, one end of the first rotating part abuts against the limiting block. At this time, the first rotating part pushes the second rotating part to rotate, so that the braking part is separated from the roller to achieve brake release; throughout the whole process of braking and brake release, only the foot needs to be stepped on, which is simple and convenient.

[0043] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A caster wheel controlled by double brakes, characterized in that Comprising a caster body, the caster body includes a wheel carrier (1) and a roller (2), the roller (2) is rotatably connected to the wheel carrier (1), a brake assembly is provided on the wheel carrier (1), the brake assembly includes a first rotating part (3), a second rotating part (4) and a third rotating part (5), the first rotating part (3), the second rotating part (4) and the third rotating part (5) are all rotatably connected to the wheel carrier (1), one end of the first rotating part (3) is provided with a first pressing part (31), the other end of the first rotating part (3) can abut against a limiting block (6) on the second rotating part (4), the second rotating part (4) is located below the first rotating part (3), one end of the second rotating part (4) away from the limiting block (6) is provided with a brake part (7), the brake part (7) can abut against the roller (2), one end of the third rotating part (5) is provided with a jacking part (8), the other end of the third rotating part (5) is provided with a second pressing part (9), when pressing the first pressing part (31), the first rotating part (3) abuts against the roller (2), and the first rotating part (3) rotates downward and presses the second rotating part (4) to make the brake part (7) abut against the roller (2); when pressing the second pressing part (9), the jacking part (8) jacks up the first rotating part (3), the first rotating part (3) abuts against the limiting block (6) and drives the second rotating part (4) to rotate, so that the brake part (7) is separated from the roller (2), a first connecting shaft (10) is provided on the wheel carrier (1), the first rotating part (3) and the second rotating part (4) are both rotatably connected to the wheel carrier (1) through the first connecting shaft (10), a second connecting shaft (11) is provided on the wheel carrier (1), the roller (2) is rotatably connected to the second connecting shaft (11), the third rotating part (5) is rotatably connected to the second connecting shaft (11), the third rotating part (5) is located on the surface of the wheel carrier (1), a contact plate (12) is provided on one side of the first rotating part (3), and the contact plate (12) is located above the jacking part (8).

2. The caster wheel with double brake control according to claim 1, wherein, The contact plate (12) and the first rotating part (3) are of an integral structure.

3. The caster wheel with double brake control according to claim 1, characterized in that, A limiting plate (13) is provided on the second rotating part (4), and the limiting plate (13) and the second rotating part (4) are of an integral structure.

4. The caster with double brake control according to claim 1, wherein, The limiting block (6) is formed by stamping, and the limiting block (6) and the second rotating part (4) are of an integral structure.

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