Central control brake impact-resistant trundle

Abstract

The utility model discloses a central control brake impact-resistant trundle which comprises a flat plate, and a middle sleeve is arranged at the bottom of the flat plate. And the upper bowl is arranged on the surface of the middle sleeve. According to the scheme, the brake bolt arranged in the middle is connected with the plastic brake block, the brake block makes contact with the rim when moving downwards, the rotating speed of the rim is reduced through extrusion and contact, the braking function can be achieved, the plastic brake block is provided with the hexagonal hole, the hexagonal hole and the middle shaft form a sliding rail, and the situation that the plastic brake block shakes up and down is avoided; according to the rotating mode of the trundle, the connecting steel balls are arranged on the two sides, the friction force generated when the trundle rotates is reduced, the smoothness generated when the trundle rotates is further improved, blocking of the trundle is avoided, the trundle core and the trundle cover are made of customized materials, the impact resistance of the trundle is improved to a certain degree, and the service life of the trundle is prolonged. In addition, the connection mode between the trundle core and the trundle cover is middle sleeve buckling type matching, so that the trundle core and the trundle cover are convenient to disassemble, and the effect of improving the overall practicability of the trundle is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of casters, and more specifically, to a central-control brake impact-resistant caster. Background Art

[0002] Casters generally refer to a wheel with a hollow structure, which is usually used on various objects such as furniture, tools, machinery and equipment, and office equipment to facilitate the movement and steering of objects. However, there are still some disadvantages in actual use. For example, some existing casters are usually composed of corresponding components such as a connecting frame and rollers, but their structure is relatively simple and can generally only achieve portable movement of objects. However, when the object needs to stop after moving, the caster cannot provide a certain braking and deceleration function, thereby reducing the practicality of the caster to a certain extent. Utility Model Content

[0003] In order to overcome the above-mentioned defects of the prior art, an embodiment of the utility model provides a centrally controlled brake impact-resistant caster to solve the problem that the prior art casters have a single structure and lack the function of braking and deceleration.

[0004] In order to solve the above technical problems, the utility model provides the following technical solutions: a central control brake impact-resistant caster, comprising

[0005] A flat plate, wherein a middle sleeve is provided at the bottom of the flat plate;

[0006] An upper bowl, the upper bowl being arranged on the surface of the middle sleeve;

[0007] A bracket, wherein the bracket is arranged below the flat plate, and a lower bowl is arranged inside the bracket;

[0008] A spring, wherein the spring is arranged inside the plate;

[0009] An upper steel ball, the upper steel ball being arranged inside the upper bowl;

[0010] A lower steel ball, the lower steel ball being movably connected to the top of the inner cavity of the bracket;

[0011] A brake bolt is arranged inside the flat plate, the top end of the brake bolt is fixedly connected to the top end of the spring, and a brake block is arranged at the bottom end of the brake bolt.

[0012] It also includes a lower steel ball cover and an upper steel ball cover, wherein the lower steel ball cover is arranged at the top of the inner cavity of the bracket, and the inner wall of the lower steel ball cover contacts the surface of the lower steel ball, and the upper steel ball cover is arranged at the bottom of the upper bowl, and the top surface of the upper steel ball cover contacts the surface of the upper steel ball.

[0013] The invention further comprises a wheel rim, a wheel core, a shaft sleeve and a wheel cover. The wheel rim is arranged on the outer ring of the wheel core, the shaft sleeve is arranged inside the wheel core, and the wheel cover is arranged outside the shaft sleeve.

[0014] It also includes connecting bolts, anti-loosening nuts, and connecting steel balls. The connecting bolts are arranged inside the wheel cover, and the surface of the connecting bolts is rotatably connected to the bottom of the bracket. The anti-loosening nuts are arranged on the surface of the connecting bolts, and the connecting steel balls are arranged inside the wheel cover, and the surface of the connecting steel balls is in contact with the inside of the wheel core.

[0015] The beneficial effects of the above technical solution of the utility model are as follows:

[0016] In the above scheme, the brake bolt arranged in the middle is connected to the plastic brake block, and the brake block contacts with the wheel rim when it moves down. The rotation speed of the wheel rim is reduced by squeezing and contacting, thereby realizing the braking function. The plastic brake block is provided with a hexagonal hole, and forms a slide rail with the hexagon of the central axis to prevent it from shaking up and down. The caster rotation method is that connecting steel balls are arranged on both sides, which reduces the friction force when the caster rotates, thereby improving the smoothness of the caster rotation and avoiding jamming. The wheel core and the wheel cover are made of customized materials, which improves the impact resistance of the caster itself to a certain extent. In addition, the connection method between the wheel core and the wheel cover is a middle sleeve snap-on fit to facilitate disassembly, thereby achieving the effect of improving the overall practicality of the caster. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the overall structure of the utility model

[0018] Figure 2 It is a schematic diagram of the relevant structure of the flat plate of the utility model;

[0019] Figure 3 This is a schematic diagram of the cross-sectional structure of the middle sleeve of the utility model;

[0020] Figure 4 This is a schematic diagram of the brake bolt structure of the utility model;

[0021] Figure 5 The utility model is a schematic diagram of the overall structure and cross-sectional structure of the brake block;

[0022] Figure 6 This is a schematic diagram of the related structures of the wheel rim and wheel core of the utility model;

[0023] Figure 7 This is a schematic diagram of the cross-sectional structure of the wheel core of the utility model;

[0024] Figure 8 This is a schematic diagram of the cross-sectional structure of the shaft sleeve of the utility model;

[0025] Fig. 9 It is a schematic diagram of the cross-sectional structure of the wheel cover of the utility model.

[0026] [reference numerals]

[0027] 1. Flat plate; 2. Middle sleeve; 3. Upper bowl; 4. Brake; 5. Lower bowl; 6. Spring; 7. Upper steel ball; 8. Lower steel ball; 9. Brake bolt; 10. Brake block; 11. Lower steel ball cover; 12. Upper steel ball cover; 13. Wheel rim; 14. Wheel core; 15. Bushing; 16. Wheel cover; 17. Connecting bolt; 18. Anti-loosening nut; 19. Connecting steel ball. DETAILED DESCRIPTION

[0028] In order to make the technical problems to be solved, technical solutions and advantages of the present invention more clear, a detailed description will be given below in conjunction with the accompanying drawings and specific embodiments.

[0029] As attached Figure 1 To Attachment Fig. 9 The embodiment of the utility model provides a central control brake impact-resistant caster, comprising

[0030] A flat plate 1, a middle sleeve 2 is provided at the bottom of the flat plate 1;

[0031] An upper bowl 3, which is arranged on the surface of the middle sleeve 2;

[0032] A bracket 4, the bracket 4 is arranged below the flat plate 1, and a lower bowl 5 is arranged inside the bracket 4;

[0033] Spring 6, spring 6 is arranged inside the plate 1;

[0034] An upper steel ball 7, which is arranged inside the upper bowl 3;

[0035] A lower steel ball 8, which is movably connected to the top of the inner cavity of the bracket 4;

[0036] The brake bolt 9 is arranged inside the flat plate 1 , the top end of the brake bolt 9 is fixedly connected to the top end of the spring 6 , and the bottom end of the brake bolt 9 is provided with a brake block 10 .

[0037] It also includes a lower steel ball cover 11 and an upper steel ball cover 12. The lower steel ball cover 11 is arranged at the top of the inner cavity of the bracket 4, and the inner wall of the lower steel ball cover 11 contacts the surface of the lower steel ball 8. The upper steel ball cover 12 is arranged at the bottom of the upper bowl 3, and the top surface of the upper steel ball cover 12 contacts the surface of the upper steel ball 7.

[0038] The wheel assembly further includes a wheel rim 13 , a wheel core 14 , a shaft sleeve 15 , and a wheel cover 16 . The wheel rim 13 is arranged on the outer ring of the wheel core 14 , the shaft sleeve 15 is arranged inside the wheel core 14 , and the wheel cover 16 is arranged outside the shaft sleeve 15 .

[0039] It also includes a connecting bolt 17, a locking nut 18, and a connecting steel ball 19. The connecting bolt 17 is arranged inside the wheel cover 16, and the surface of the connecting bolt 17 is rotatably connected to the bottom of the bracket 4. The locking nut 18 is arranged on the surface of the connecting bolt 17, and the connecting steel ball 19 is arranged inside the wheel cover 16, and the surface of the connecting steel ball 19 is in contact with the inside of the wheel core 14.

[0040] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, which may refer to mechanical connection or electrical connection, or internal communication between two components, or direct connection. "upper", "lower", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may change;

[0041] Secondly: In the drawings of the embodiments disclosed in the present utility model, only the structures related to the embodiments disclosed in the present utility model are involved, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present utility model can be combined with each other;

[0042] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A central control brake impact-resistant caster, characterized in that: include A flat plate (1), wherein a middle sleeve (2) is provided at the bottom of the flat plate (1); An upper bowl (3), wherein the upper bowl (3) is arranged on the surface of the middle sleeve (2); A bracket (4), the bracket (4) being arranged below the flat plate (1), and a lower bowl (5) being arranged inside the bracket (4); A spring (6), wherein the spring (6) is arranged inside the plate (1); An upper steel ball (7), wherein the upper steel ball (7) is arranged inside the upper bowl (3); A lower steel ball (8), wherein the lower steel ball (8) is movably connected to the top of the inner cavity of the bracket (4); A brake bolt (9), wherein the brake bolt (9) is arranged inside the flat plate (1), the top end of the brake bolt (9) is fixedly connected to the top end of the spring (6), and the bottom end of the brake bolt (9) is provided with a brake block (10).

2. The central control brake impact-resistant caster according to claim 1, characterized in that: It also includes a lower steel ball cover (11) and an upper steel ball cover (12), wherein the lower steel ball cover (11) is arranged at the top of the inner cavity of the bracket (4), and the inner wall of the lower steel ball cover (11) contacts the surface of the lower steel ball (8); the upper steel ball cover (12) is arranged at the bottom of the upper bowl (3), and the top surface of the upper steel ball cover (12) contacts the surface of the upper steel ball (7).

3. The impact-resistant caster with central brake according to claim 1, characterized in that: The invention also comprises a wheel rim (13), a wheel core (14), a shaft sleeve (15), and a wheel cover (16), wherein the wheel rim (13) is arranged on the outer ring of the wheel core (14), the shaft sleeve (15) is arranged inside the wheel core (14), and the wheel cover (16) is arranged outside the shaft sleeve (15).

4. The impact-resistant caster with central brake according to claim 3, characterized in that: It also includes a connecting bolt (17), a locking nut (18), and a connecting steel ball (19), wherein the connecting bolt (17) is arranged inside the wheel cover (16), the surface of the connecting bolt (17) is rotatably connected to the bottom of the bracket (4), the locking nut (18) is arranged on the surface of the connecting bolt (17), the connecting steel ball (19) is arranged inside the wheel cover (16), and the surface of the connecting steel ball (19) is in contact with the inside of the wheel core (14).

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