Low center of gravity caster

Abstract

The utility model discloses a low gravity center trolley, including support and wheel body, the support one side surface bottom position welds to have fixed seat, the fixed seat top position welds to have the expansion block in the support one side surface top position above. The utility model discloses a supporting arm, adjusting ring has adopted, can rotate supporting arm according to the use demand and the difference of use scene when trolley uses, and then makes it rotate along the adjusting ring surface to change the inclination angle of supporting arm and drive wheel body to rotate, can make wheel body adjust in horizontal and longitudinal position according to the difference of rotation degree, and then change the use height of wheel body, do not need to carry out the pad height or replace trolley additionally, can improve the use flexibility and practicality of structure, then can fix supporting arm through bolt after adjusting, guarantees the stability of trolley movement, has the advantage such as operation height adjustable, strong practicality.

Description

Technical Field

[0001] This utility model relates to the field of caster technology, and more specifically, to a low center of gravity caster. Background Technology

[0002] Low center of gravity casters are caster products with special design and function that play an important role in many fields. Due to their low installation center of gravity, they mainly serve to stabilize and move equipment. They are suitable for equipment with a high body, large load requirements, and a low center of gravity.

[0003] Existing low center of gravity casters typically use fixed support structures, which cannot dynamically adjust the equipment height according to the working scenario. For example, in material transfer on the production line, the height difference between different workstations often reaches 200-300mm. Moreover, the low center of gravity design is often accompanied by the risk of center of gravity shift. Especially when the equipment load changes, traditional solutions require additional padding or replacement of casters, which is cumbersome and damages the overall integrity of the equipment, making it not very practical.

[0004] No effective solutions have yet been proposed to address the problems in the relevant technologies. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] To address the shortcomings of existing technologies, this utility model provides a low center of gravity caster with advantages such as adjustable working height, high practicality, and the ability to adjust using counterweights, thereby solving the problems mentioned in the background technology.

[0007] (II) Technical Solution

[0008] To achieve the advantages of adjustable working height, high practicality, and counterweight adjustment, the specific technical solution adopted by this utility model is as follows:

[0009] A low center of gravity caster includes a bracket and a wheel body. A fixed seat is welded to the bottom of one side surface of the bracket. An extension block is welded to the top of one side surface of the bracket above the fixed seat. A support arm is rotatably connected to the surface of the fixed seat. An adjusting ring is welded to one side of the support arm on the surface of the bracket and the extension block. Several sets of limiting holes are evenly opened on the surface of the adjusting ring. The limiting holes are fixed to the support arm by bolts.

[0010] Furthermore, several sets of counterweight grooves are evenly distributed around the surface of the bracket, and counterweight blocks are inserted into the interior of the counterweight grooves. A fixing plate is welded to one end of each counterweight block, and the fixing plate is threadedly connected to the surface of the bracket by screws.

[0011] Furthermore, a rotating head is installed at the top of the bracket, and a mounting plate is rotatably connected to the top of the rotating head.

[0012] Furthermore, several sets of positioning holes are symmetrically formed around the perimeter of the mounting plate surface.

[0013] Furthermore, a wheel is rotatably connected to the other side of the support arm.

[0014] Furthermore, a tire body is mounted on the surface of the wheel.

[0015] Furthermore, the support arm has an H-shaped structure.

[0016] Furthermore, the adjusting rings are symmetrically arranged in two sets.

[0017] (III) Beneficial Effects

[0018] Compared with the prior art, this utility model provides a low center of gravity caster, which has the following advantages:

[0019] (1) This utility model adopts a support arm and an adjusting ring. When the caster is in use, the support arm can be rotated according to the different usage requirements and usage scenarios, so that it rotates along the surface of the adjusting ring, thereby changing the tilt angle of the support arm and driving the wheel to rotate. Depending on the degree of rotation, the wheel can be adjusted in the horizontal and vertical positions, thereby changing the usage height of the wheel. There is no need to raise it or replace the caster. It can improve the flexibility and practicality of the structure. After the adjustment is completed, the support arm can be fixed with bolts to ensure the stability of the caster movement. It has the advantages of adjustable working height and strong practicality.

[0020] (2) This utility model adopts a counterweight groove. After the height adjustment is completed, the corresponding counterweight block can be inserted into the counterweight groove in the corresponding direction inside the bracket according to the different directions of the center of gravity offset caused by the different lifting height and tilt angle of the caster. This allows the center of gravity of the caster to be readjusted, ensuring the stability of movement. It has the advantage of using counterweight adjustment. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the structure of a low center of gravity caster proposed in this utility model;

[0023] Figure 2This is a schematic diagram of the support arm of this utility model;

[0024] Figure 3 This is a schematic diagram of the structure of the adjusting ring of this utility model;

[0025] Figure 4 This is a structural schematic diagram of the counterweight and fixing plate of this utility model.

[0026] In the picture:

[0027] 1. Bracket; 2. Adjusting ring; 3. Limiting hole; 4. Support arm; 5. Fixing seat; 6. Wheel body; 7. Tire body; 8. Extension block; 9. Mounting plate; 10. Rotating head; 11. Positioning hole; 12. Counterweight groove; 13. Counterweight block; 14. Fixing plate. Detailed Implementation

[0028] To further illustrate the various embodiments, the present invention provides accompanying drawings, which are part of the disclosure of the present invention. These drawings are mainly used to illustrate the embodiments and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, those skilled in the art should be able to understand other possible implementation methods and the advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are usually used to represent similar components.

[0029] According to an embodiment of the present invention, a low center of gravity caster is provided.

[0030] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments, such as... Figure 1-4 As shown, a low center of gravity caster according to an embodiment of the present invention includes a bracket 1 and a wheel body 6. A fixed seat 5 is welded to the bottom of one side surface of the bracket 1. An extension block 8 is welded to the top of one side surface of the bracket 1 above the fixed seat 5. A support arm 4 is rotatably connected to the surface of the fixed seat 5. An adjusting ring 2 is welded to one side of the support arm 4 on the surface of the bracket 1 and the extension block 8. Several sets of limiting holes 3 are evenly opened on the surface of the adjusting ring 2. The limiting holes 3 are fixed to the support arm 4 by bolts.

[0031] In one embodiment, a plurality of counterweight grooves 12 are evenly distributed around the surface of the bracket 1. A counterweight block 13 is inserted into the counterweight groove 12. A fixing plate 14 is welded to one end of the counterweight block 13. The fixing plate 14 is threadedly connected to the surface of the bracket 1 by screws. The counterweight block 13 is set to adjust the weight of the entire caster structure, thereby adjusting the center of gravity of the caster to meet different tilt states of the support arm 4, ensuring the stability of the caster movement and the performance of the caster. The counterweight grooves 12 are set at different positions to achieve more diverse adjustments of the center of gravity by adjusting the weight at different positions. Similarly, the counterweight grooves 12 can be set only at a specified position or a unidirectional position to achieve a specified adjustment of the center of gravity. This will not be elaborated further here.

[0032] In one embodiment, a rotating head 10 is installed at the top of the bracket 1, and a mounting plate 9 is rotatably connected to the top of the rotating head 10. The rotating head 10 is designed to facilitate the rotation of the bracket 1, thereby enabling better movement of the external structure. Similarly, if only unidirectional movement is required, the rotating head 10 can be fixedly connected to the mounting plate 9 and the bracket 1, or the rotating head 10 can be replaced with any fixed component, which will not be elaborated further here.

[0033] In one embodiment, a number of positioning holes 11 are symmetrically provided around the perimeter of the mounting plate 9. The positioning holes 11 are provided to facilitate the connection between the casters and the external structure, thereby enabling the movement of the external structure.

[0034] In one embodiment, a wheel 6 is rotatably connected to the other side of the support arm 4.

[0035] In one embodiment, a tire body 7 is mounted on the surface of the wheel body 6. The wheel body 6 and the tire body 7 constitute the most basic wheel structure of the caster. Since the wheel structure is an existing product, it will not be described in detail. Personnel can flexibly choose the materials of the wheel body 6 and the tire body 7 according to their needs.

[0036] In one embodiment, the support arm 4 has an H-shaped structure. The structure of the support arm 4 is designed to ensure that it can rotate smoothly along the fixed seat 5 and can be paired and fixed with the adjusting ring 2. Similarly, the area between the support arms 4 can be reinforced with additional structures, such as reinforcing ribs, as needed, as long as it does not affect the normal rotation and fixation of the support arm 4. Since the reinforcement of the support arm 4 is common knowledge and can be easily implemented by personnel, it will not be elaborated on further.

[0037] In one embodiment, two sets of adjusting rings 2 are symmetrically arranged. The symmetrical arrangement of adjusting rings 2 is to tighten both sides of the support arm 4, thereby improving the fixing effect of the support arm 4 and avoiding the force tilting of the support arm 4 caused by tightening on one side. This ensures the adjustment of the caster and the subsequent fixing effect, making it easier to use.

[0038] Working Principle: In actual use, the entire bracket 1 can be connected to external equipment through the positioning holes 11 on the surface of the positioning plate and external bolts, facilitating subsequent transfer operations. When the casters are in use, the support arm 4 can be rotated according to different usage requirements and scenarios, causing it to rotate along the surface of the adjusting ring 2. This changes the tilt angle of the support arm 4 and drives the wheel 6 to rotate. Depending on the degree of rotation, the wheel 6 can be adjusted in both lateral and longitudinal positions, thereby changing its operating height. No additional padding or caster replacement is required, improving the structural flexibility. In terms of practicality, after adjustment, the support arm 4 can be fixed with bolts to ensure the stability of the caster movement. Then, after the height adjustment is completed, according to the different directions of the center of gravity offset caused by the different lifting height and tilt angle of the caster, the corresponding counterweight block 13 can be inserted into the corresponding counterweight groove 12 inside the bracket 1, so that the center of gravity of the caster can be readjusted to ensure the stability of movement. The adjustment of the counterweight can also make the center of gravity of the caster more stable, thereby improving the use effect of the caster and the stability during movement, which is conducive to better promotion and use. The device as a whole has the advantages of adjustable working height, strong practicality and counterweight adjustment.

[0039] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0040] 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 within the protection scope of the present utility model.

Claims

1. A low-center-of-gravity caster, comprising a bracket (1) and a wheel body (6), characterized in that, A fixed seat (5) is welded to the bottom of one side surface of the bracket (1). An extension block (8) is welded to the top of one side surface of the bracket (1) above the fixed seat (5). A support arm (4) is rotatably connected to the surface of the fixed seat (5). An adjustment ring (2) is welded to one side of the support arm (4) on the surface of the bracket (1) and the extension block (8). Several sets of limiting holes (3) are evenly opened on the surface of the adjustment ring (2). The limiting holes (3) are fixed to the support arm (4) by bolts.

2. A low-center-of-gravity caster according to claim 1, characterized in that, The support (1) has several sets of counterweight grooves (12) evenly distributed around its surface. A counterweight block (13) is inserted into the counterweight groove (12). A fixing plate (14) is welded to one end of the counterweight block (13). The fixing plate (14) is threadedly connected to the surface of the support (1) by screws.

3. A low-center-of-gravity caster according to claim 1, characterized in that, A rotating head (10) is installed at the top of the bracket (1), and a mounting plate (9) is rotatably connected to the top of the rotating head (10).

4. A low-center-of-gravity caster according to claim 3, characterized in that, The mounting plate (9) has several sets of positioning holes (11) symmetrically opened around its perimeter.

5. A low-center-of-gravity caster according to claim 1, characterized in that, The other side of the support arm (4) is rotatably connected to a wheel (6).

6. A low-center-of-gravity caster according to claim 5, characterized in that, The wheel body (6) has a tire body (7) mounted on its surface.

7. A low-center-of-gravity caster according to claim 1, characterized in that, The support arm (4) has an H-shaped structure.

8. A low-center-of-gravity caster according to claim 1, characterized in that, The regulating ring (2) is provided in two sets symmetrically.

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