Caster with adjustable support

Abstract

This utility model discloses a caster with adjustable support function, belonging to the technical field of support casters. It includes a height adjustment mechanism disposed on the top surface of a support plate, a support pad disposed on the outer periphery of the bottom surface of the support plate, a roller bracket located inside the support pad, and auxiliary support components disposed around the support pad. Through height adjustment and the placement of the support pad, the vertical adjustment of the roller can be controlled. When the roller is adjusted to be at the same height as the bottom of the support pad, the contact area with the ground is significantly increased, providing a more stable support effect. Both the roller and the support pad are perpendicular to the support plate, reducing the pressure on the roller bracket and thus improving the overall load-bearing capacity of the caster, preventing damage to the caster.

Description

Technical Field

[0001] This utility model belongs to the field of caster technology, specifically relating to a caster with adjustable support function. Background Technology

[0002] The casters with support functions currently available on the market include swivel casters, fixed casters, and swivel casters with brakes. Swivel casters, also known as universal wheels, have a structure that allows them to rotate 360 ​​degrees. Fixed casters, also called directional casters, do not have a rotating structure and cannot rotate. Usually, the two types of casters are used together.

[0003] Typically, the rollers and support feet are positioned on opposite sides of the vertical axis of the caster's connecting body. This results in the rollers and support feet being eccentrically positioned relative to the caster's connecting body. Since the rollers and support feet are used independently, the position where the rollers rotate and connect to the caster's connecting body needs to be significantly offset from the vertical axis of the caster support frame. This requires the caster's connecting body to have a high load-bearing capacity; otherwise, it is highly susceptible to damage due to overload. Furthermore, when the support feet are positioned on one side of the rollers, their size is relatively small, resulting in poor support performance. Utility Model Content

[0004] The purpose of this invention is to provide a caster with adjustable support function to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: it includes a support plate, two roller brackets symmetrically fixed to the bottom surface of the support plate, and a support rod horizontally arranged between the two roller brackets. Rollers are rotatably sleeved on the support rod. It also includes a height adjustment mechanism disposed on the top surface of the support plate. A support pad is disposed on the outer periphery of the bottom surface of the support plate. The roller brackets are located inside the support pad. An auxiliary support component is disposed on the periphery of the support pad.

[0006] The height adjustment mechanism includes a mounting sleeve fixed to the top surface of the support plate and a cylinder disposed in the mounting sleeve. The telescopic end of the cylinder is fixed with an inverted U-shaped movable block. Both sides of the roller bracket are provided with sliding grooves that cooperate with the support rod. The two ends of the support rod pass through the two sliding grooves respectively. One end of the movable block passes into the sliding groove and abuts against the support rod.

[0007] It should be noted in the solution that the auxiliary support component includes two support frames symmetrically arranged on the outside of the support pad. The inner wall of the top of the support frame is hinged with a protrusion that is fixedly connected to the outer wall of the support pad. The two support frames correspond one-to-one with the two locking blocks. A push-pull assembly is provided between the support frame and the locking block.

[0008] It should be noted in the solution that the push-pull assembly includes a crossbar fixed to the side of the locking block facing the support frame, a slide rail is provided on the inner wall of the support pad, the end of the crossbar passes through the slide rail and is hinged to a movable rod, and the end of the movable rod is hinged to the inner wall of the support frame.

[0009] It is worth noting that locking blocks are attached to both sides of the roller bracket, and the two locking blocks are detachably connected to both ends of the support rod.

[0010] Compared with the prior art, the caster with adjustable support provided by this utility model has at least the following beneficial effects:

[0011] (1) By adjusting the height and setting the support pad, the roller can be adjusted up and down. When the roller is adjusted to be the same height as the bottom of the support pad, the contact area with the ground is significantly increased, and it provides a more stable support effect when in contact with the ground. Both the roller and the support pad are set perpendicular to the support plate, which reduces the pressure on the roller bracket, thereby improving the overall load-bearing capacity of the caster and preventing damage to the caster.

[0012] (2) By setting up auxiliary support components, it is equivalent to adding two support feet at both ends of the caster. When the moving body is subjected to lateral force, the auxiliary support device can play a supporting role, further enhancing the supporting effect of the support pad. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the product of this utility model;

[0014] Figure 2 This is a front view cross-sectional structural diagram of the product of this utility model;

[0015] Figure 3 This is a bottom view of the structure of the product of this utility model.

[0016] In the diagram: 1. Roller; 2. Roller bracket; 3. Support rod; 4. Locking block; 5. Movable block; 6. Support plate; 7. Protrusion; 8. Mounting sleeve; 9. Support pad; 10. Support frame; 11. Crossbar; 12. Movable rod; 13. Cylinder. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Please see Figure 1-3 A caster with adjustable support function includes a support plate 6, two roller brackets 2 symmetrically fixed to the bottom surface of the support plate 6, and a support rod 3 horizontally arranged between the two roller brackets 2. Rollers 1 are rotatably sleeved on the rod body of the support rod 3. The caster also includes a height adjustment mechanism disposed on the top surface of the support plate 6. A support pad 9 is disposed on the outer periphery of the bottom surface of the support plate 6, and the roller brackets 2 are located inside the support pad 9.

[0019] The height adjustment mechanism includes a mounting sleeve 8 fixed to the top surface of the support plate 6 and a cylinder 13 disposed in the mounting sleeve 8. The telescopic end of the cylinder 13 is fixed with an inverted U-shaped movable block 5. Both sides of the roller bracket 2 are provided with sliding grooves that cooperate with the support rod 3. The two ends of the support rod 3 pass through the two sliding grooves respectively. One end of the movable block 5 passes into the sliding groove and abuts against the support rod 3.

[0020] By adjusting the height and setting the support pad 9, the support pad 9 is placed around the roller 1, significantly increasing the cross-sectional area of ​​the bottom of the support pad 9. This provides a more stable support effect when in contact with the ground. In actual use, the cylinder 13 is activated to push the movable block 5 to its lowest point, where it abuts against the upper surface of the support plate 6. At this time, the movable block 5 pushes the support rod 3 and the roller 1 to their lowest points, allowing the roller 1 to contact the ground and extend beyond the support pad 9. The roller 1 drives the moving body to slide. When it needs to be fixed at the designated position, the cylinder 13 is closed. Under the weight of the moving body, the roller 1 and the support rod 3 push the movable block 5 upward until the support pad 9 contacts the ground. The support pad 9 and the roller 1 share the pressure from the moving body. On the one hand, the roller 1 can be adjusted up and down by controlling the cylinder 13. On the other hand, the roller 1 and the support pad 9 are both set perpendicular to the support plate 6, reducing the pressure on the roller bracket 2, thereby improving the overall load-bearing capacity of the caster and preventing damage to the caster.

[0021] Furthermore, referring to Figure 2-3 It is worth noting that both sides of the roller bracket 2 are fitted with locking blocks 4, and the two locking blocks 4 are detachably connected to both ends of the support rod 3.

[0022] With the roller bracket 2 and support rod 3 in place, during actual installation, the roller 1 is first placed in the middle of the two roller brackets 2, and then the support rod 3 is passed through the roller bracket 2, the roller 1 and the other roller bracket 2 in sequence. The two ends of the support rod 3 are fixed by the locking block 4. After long-term use, the roller 1 will inevitably wear out. When the roller 1 needs to be replaced, it can be replaced by disassembling the locking block 4 and the support rod 3, so as to achieve the purpose of convenient replacement.

[0023] In actual use, when the casters are installed on different mobile bodies, some mobile bodies have a high center of gravity. Although the volume of the support pad 9 is increased by setting the support pad 9 on the outside of the roller 1, it is still easy to collapse.

[0024] Therefore, referring to Figure 1-3 It is worth noting that the outer periphery of the support pad 9 is provided with auxiliary support components;

[0025] The auxiliary support component includes two support frames 10 symmetrically arranged on the outside of the support pad 9. The inner wall of the top of the support frame 10 is hinged with a protrusion 7 that is fixedly connected to the outer wall of the support pad 9. The two support frames 10 correspond one-to-one with the two locking blocks 4. A push-pull assembly is provided between the support frame 10 and the locking block 4.

[0026] The push-pull assembly includes a crossbar 11 fixed to the side of the locking block 4 facing the support frame 10. A slide rail is provided on the inner wall of the support pad 9. The end of the crossbar 11 passes through the slide rail and is hinged to a movable rod 12. The end of the movable rod 12 is hinged to the inner wall of the support frame 10.

[0027] With the auxiliary support components, when the moving body needs to be fixed, the roller 1 and support rod 3 begin to move upward. At this time, the support rod 3 drives the locking block 4 and the crossbar 11 to move upward. During the upward movement of the crossbar 11, it will gradually become horizontal with the movable rod 12. The other end of the movable rod 12 will press the support frame 10 in the same direction. At this time, the top of the support frame 10 and the protrusion 7 begin to rotate under pressure, and the bottom of the support frame 10 begins to unfold outward until the roller 1 stops rising. When the crossbar 11 and the movable rod 12 are on the same horizontal line, the support frame 10 is fully unfolded, and the bottom of the support frame 10 is on the same horizontal line as the bottom of the support pad 9. This is equivalent to adding two support feet at both ends of the caster. When the moving body is subjected to lateral force, the auxiliary support device can play a supporting role, further strengthening the supporting effect of the support pad 9.

[0028] The above describes a caster with adjustable support function provided by this utility model. Specific preferred embodiments have been used to illustrate the principle and implementation of this utility model. These embodiments are only used to help understand the principle and core idea of ​​this utility model. It should be noted that for those skilled in the art, the implementation schemes in the above embodiments can be further combined or replaced without departing from the design concept of this utility model, and several improvements and modifications can be made to this utility model. These improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. A caster with adjustable support function, comprising a support plate (6), two roller brackets (2) symmetrically fixed to the bottom surface of the support plate (6), and a support rod (3) transversely disposed between the two roller brackets (2), wherein a roller (1) is rotatably sleeved on the support rod (3), characterized in that: It also includes a height adjustment mechanism set on the top surface of the support plate (6), a support pad (9) is provided on the outer periphery of the bottom surface of the support plate (6), the roller bracket (2) is located on the inner side of the support pad (9), and an auxiliary support component is provided on the periphery of the support pad (9); The height adjustment mechanism includes a mounting sleeve (8) fixed to the top surface of the support plate (6) and a cylinder (13) disposed in the mounting sleeve (8). The telescopic end of the cylinder (13) is fixed with an inverted U-shaped movable block (5). Both sides of the roller bracket (2) are provided with sliding grooves that cooperate with the support rod (3). The two ends of the support rod (3) pass through the two sliding grooves respectively. One end of the movable block (5) passes into the sliding groove and abuts against the support rod (3). Both sides of the roller bracket (2) are fitted with locking blocks (4), and the two locking blocks (4) are detachably connected to the two ends of the support rod (3).

2. The caster with adjustable support function according to claim 1, characterized in that: The auxiliary support component includes two support frames (10) symmetrically arranged on the outside of the support pad (9). The inner wall of the top of the support frame (10) is hinged with a protrusion (7) that is fixedly connected to the outer wall of the support pad (9). The two support frames (10) correspond one-to-one with the two locking blocks (4). A push-pull assembly is provided between the support frame (10) and the locking block (4).

3. The caster with adjustable support function according to claim 2, characterized in that: The push-pull assembly includes a crossbar (11) fixed to the locking block (4) on the side facing the support frame (10). A slide is provided on the inner wall of the support pad (9). The end of the crossbar (11) passes through the slide and is hinged to a movable rod (12). The end of the movable rod (12) is hinged to the inner wall of the support frame (10).

Images