High-elasticity solid rubber wheel for trolley

Abstract

The high-elastic solid rubber wheel comprises a hub, a solid rubber inner ring, a wear-resistant rubber outer ring and a mounting seat, the hub is rotationally connected to the mounting seat through a rotating shaft, the solid rubber inner ring is mounted on the outer side of the hub, a buffer structure is arranged in the solid rubber inner ring, and the wear-resistant rubber outer ring is mounted on the outer side of the hub. The wear-resistant rubber outer ring is mounted on the outer side of the solid rubber inner ring, the wear-resistant rubber outer ring and the solid rubber inner ring are detachably mounted through a fixing structure, the wear-resistant rubber outer ring is mounted on the outer side of the solid rubber inner ring, and the wear-resistant rubber outer ring is high in wear resistance, not prone to being abraded and capable of preventing cutting and breakage. And the wear-resistant rubber outer ring and the solid rubber inner ring are convenient to disassemble and replace through the fixing structure, the wear-resistant rubber outer ring which is excessively abraded is replaced, and the service life is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of rubber wheels, and specifically relates to a high-elastic solid rubber wheel for a handcart. Background Art

[0002] A rubber wheel is an annular elastic rubber wheel product that rolls on the ground and is assembled on various vehicles or machinery. It is usually installed on a metal rim and has functions such as supporting the vehicle body, buffering external impacts, reducing vibrations, and lowering temperatures. High-elastic solid rubber wheels are widely used in existing handcarts.

[0003] After retrieval, Chinese Patent Publication No.: CN213649257U discloses a high-elastic solid rubber wheel for a handcart, belonging to the technical field of rubber wheels. It includes a mounting seat. The lower end of the mounting seat is rotatably connected and installed with a wheel buckle through a steering shaft. A rubber roller is installed at the lower end inside the wheel buckle. A solid hub is rotatably inserted and installed at the center inside the rubber roller. A solid rubber layer is installed to surround the outer layer of the solid hub. A high-strength protective layer is compounded on the outer layer of the solid rubber layer. A wear-resistant layer is compounded on the outer layer of the high-strength protective layer.

[0004] Although the above solution makes the rubber wheel have wear-resistant performance and extends its service life by setting a wear-resistant layer on the outside of the rubber wheel, the wear-resistant layer still has a service life. After the wear-resistant layer is excessively worn, the rubber wheel needs to be replaced as a whole, resulting in a high cost. Moreover, the buffering effect of the rubber wheel is poor, making it difficult to move the handcart when encountering a relatively rough road. Summary of the Utility Model

[0005] 1. Technical Problems to be Solved by the Utility Model

[0006] Aiming at the deficiencies of the prior art, the purpose of the present utility model is to provide a high-elastic solid rubber wheel for a handcart, aiming to solve the problems in the prior art that after the rubber wheel is excessively worn, the overall replacement cost is high, and the buffering effect is poor, making it difficult to move the handcart.

[0007] 2. Technical Solution

[0008] To achieve the above purpose, the present utility model provides the following technical solution:

[0009] A high-elastic solid rubber wheel for a handcart includes a hub, a solid rubber inner ring, a wear-resistant rubber outer ring, and a mounting seat. The hub is rotatably connected to the mounting seat through a rotating shaft. The solid rubber inner ring is installed on the outside of the hub. A buffering structure is arranged inside the solid rubber inner ring. The wear-resistant rubber outer ring is installed on the outside of the solid rubber inner ring. The wear-resistant rubber outer ring and the solid rubber inner ring are detachably installed through a fixing structure.

[0010] Preferably, an installation groove is annularly formed on the outer wall of the hub, and an installation convex ring that is snapped into the installation groove is provided on the inner wall of the solid rubber inner ring.

[0011] Preferably, the buffer structure includes a skeleton fixedly connected to the inside of the solid rubber inner ring. The skeleton is a hollow annular structure. A plurality of relief grooves are formed on the outer wall of the skeleton along the circumferential direction. The skeleton and the solid rubber inner ring are integrally vulcanized.

[0012] Preferably, the buffer structure further includes a first buffer groove annularly formed inside the solid rubber inner ring. The first buffer groove is located at the middle position inside the skeleton. Second buffer grooves are symmetrically and annularly formed on both sides of the first buffer groove, and the second buffer grooves are also located inside the skeleton. Third buffer grooves are symmetrically and annularly formed on both sides of the skeleton inside the solid rubber inner ring.

[0013] Preferably, a plurality of reinforcing ribs are fixedly connected to the interiors of the first buffer groove, the second buffer groove, and the third buffer groove.

[0014] Preferably, the fixing structure includes a plurality of groups of positioning grooves annularly formed on the outer wall of the solid rubber inner ring and a plurality of groups of positioning convex rings provided on the inner wall of the wear-resistant rubber outer ring. The positioning convex rings and the positioning grooves correspond to each other one by one.

[0015] Preferably, both sides of the positioning groove close to the outer wall of the solid rubber inner ring are of an outward-expanding structure.

[0016] Preferably, a plurality of limiting convex blocks are equidistantly arranged on the inner walls of both sides of the positioning groove along the circumferential direction, and a plurality of limiting grooves for the limiting convex blocks to be snapped into are formed on the outer walls of both sides of the positioning convex ring along the circumferential direction.

[0017] Preferably, fitting grooves are annularly formed on both sides of the outer wall of the solid rubber inner ring, and embedding rings that are snapped into the fitting grooves are provided on both sides of the inner wall of the wear-resistant rubber outer ring.

[0018] Preferably, a steel wire mesh is fixedly connected to the inside of the wear-resistant rubber outer ring. The steel wire mesh is an annular structure. The steel wire mesh and the wear-resistant rubber outer ring are integrally vulcanized.

[0019] 3. Beneficial effects

[0020] [[ID=3||0]]Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0021] (1) By installing the wear-resistant rubber outer ring on the outside of the solid rubber inner ring in the present utility model, the wear-resistant rubber outer ring has high wear resistance, is not easily worn, can prevent splitting and breaking, and the fixing structure facilitates the disassembly and replacement of the wear-resistant rubber outer ring and the solid rubber inner ring. By replacing the excessively worn wear-resistant rubber outer ring, the service life is improved.

[0022] (2) In the utility model, a buffer structure is arranged inside the solid rubber inner ring. When the rubber wheel is impacted during movement, deformation occurs through the skeleton, the first buffer groove, the second buffer groove, and the third buffer groove, achieving the purpose of buffering the impact. Moreover, a plurality of reinforcing ribs are fixedly connected inside the skeleton, the first buffer groove, the second buffer groove, and the third buffer groove, enabling the solid rubber inner ring to quickly return to its original shape. The rubber wheel of this application has a simple structure, good buffering effect, convenient processing and manufacturing, easy production and installation, and good practicability. Description of the Drawings

[0023] Figure 1 It is a schematic three-dimensional structure diagram of the high-elastic solid rubber wheel for a handcart;

[0024] Figure 2 It is a schematic structure diagram of the wheel hub, the solid rubber inner ring, and the wear-resistant rubber outer ring;

[0025] Figure 3 It is a schematic exploded structure diagram of the wheel hub, the solid rubber inner ring, and the wear-resistant rubber outer ring;

[0026] Figure 4 It is a schematic cross-sectional structure diagram of the solid rubber inner ring;

[0027] Figure 5 It is a schematic structure diagram of the skeleton;

[0028] Figure 6 It is a schematic cross-sectional structure diagram of the wear-resistant rubber outer ring.

[0029] In the figure: 1. Wheel hub; 101. Installation groove; 2. Solid rubber inner ring; 201. Installation convex ring; 202. Skeleton; 2021. Avoidance groove; 203. First buffer groove; 204. Second buffer groove; 205. Third buffer groove; 206. Positioning groove; 207. Limit convex block; 208. Fitting groove; 3. Wear-resistant rubber outer ring; 301. Positioning convex ring; 302. Limit groove; 303. Embedding ring; 304. Steel wire mesh; 4. Installation seat. Detailed Implementation Modes

[0030] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0031] Embodiment:

[0032] Please refer to Figures 1 - 6, this embodiment provides a high-elastic solid rubber wheel for a trolley, which includes a wheel hub 1, a solid rubber inner ring 2, a wear-resistant rubber outer ring 3 and a mounting seat 4. The wheel hub 1 is rotatably connected to the mounting seat 4 through a rotating shaft. The mounting seat 4 is used to be mounted and fixed on the trolley. The solid rubber inner ring 2 is mounted on the outside of the wheel hub 1. A buffer structure is arranged inside the solid rubber inner ring 2. The wear-resistant rubber outer ring 3 is mounted on the outside of the solid rubber inner ring 2. The wear-resistant rubber outer ring 3 can be made of polyamide fiber and aromatic amide fiber tightly intertwined and compounded into one body or other wear-resistant rubber materials. The wear-resistant rubber outer ring 3 and the solid rubber inner ring 2 are detachably mounted through a fixing structure. The provided wear-resistant rubber outer ring 3 has high wear resistance, is not easy to wear, can prevent cutting and breaking, and is convenient for disassembling and replacing the wear-resistant rubber outer ring 3 and the solid rubber inner ring 2 through the fixing structure. Replace the overly worn wear-resistant rubber outer ring 3 to improve the service life. By arranging a buffer structure inside the solid rubber inner ring 2, it has a good buffering effect and improves the stability of the trolley during movement.

[0033] In this embodiment, as Figure 3 shown, an installation groove 101 is annularly formed on the outer wall of the wheel hub 1, and an installation convex ring 201 that is snapped into the installation groove 101 is provided on the inner wall of the solid rubber inner ring 2. The solid rubber inner ring 2 is mounted and fixed on the wheel hub 1 by installing the installation convex ring 201 into the installation groove 101.

[0034] As an implementation manner of this embodiment, as Figure 4 and Figure 5 shown, the buffer structure includes a skeleton 202 fixedly connected to the inside of the solid rubber inner ring 2. The skeleton 202 is a hollow annular structure. The skeleton 202 is a metal skeleton and has elasticity. A plurality of avoidance grooves 2021 are formed on the outer wall of the skeleton 202 along the circumferential direction. The skeleton 202 and the solid rubber inner ring 2 are a vulcanized integral structure. The skeleton 202 plays a supporting role. The buffer structure further includes a first buffer groove 203 annularly formed inside the solid rubber inner ring 2. The first buffer groove 203 is located at the middle position inside the skeleton 202. Second buffer grooves 204 are symmetrically and annularly formed on both sides of the first buffer groove 203. The second buffer grooves 204 are also located inside the skeleton 202. Third buffer grooves 205 are symmetrically and annularly formed on both sides of the skeleton 202 inside the solid rubber inner ring 2. When the rubber wheel is impacted during movement, the skeleton 202, the first buffer groove 203, the second buffer groove 204 and the third buffer groove 205 are deformed to achieve the purpose of buffering the impact, and the solid rubber inner ring 2 is quickly restored to its original shape through the skeleton 202. The rubber wheel structure of the present application is simple, convenient for processing and manufacturing, easy for production and installation, and has good practicability.

[0035] In this embodiment, a plurality of reinforcing ribs are fixedly connected inside the first buffer groove 203, the second buffer groove 204, and the third buffer groove 205, which improves the structural strength of the solid rubber inner ring 2 and enables better elastic recovery.

[0036] As an implementation manner of this embodiment, as Figure 4 and Figure 6 shown, the fixing structure includes a plurality of groups of positioning grooves 206 annularly formed on the outer wall of the solid rubber inner ring 2 and a plurality of groups of positioning convex rings 301 provided on the inner wall of the wear-resistant rubber outer ring 3. The positioning convex rings 301 correspond to the positioning grooves 206 one by one. When installing the wear-resistant rubber outer ring 3 on the solid rubber inner ring 2, by sleeving the wear-resistant rubber outer ring 3 on the outside of the solid rubber inner ring 2, the positioning convex rings 301 are aligned and snapped into the positioning grooves 206, thereby axially limiting the wear-resistant rubber outer ring 3, facilitating the disassembly, installation, and replacement of the wear-resistant rubber outer ring 3. After the wear-resistant rubber outer ring 3 is excessively worn, only the wear-resistant rubber outer ring 3 needs to be disassembled and replaced, without replacing the entire rubber wheel, which improves the service life of the rubber wheel.

[0037] In this embodiment, both sides of the positioning groove 206 close to the outer wall of the solid rubber inner ring 2 are outward-expanding structures, so that the width at the inlet of the positioning groove 206 is larger, which helps the positioning convex ring 301 to be snapped into the positioning groove 206 and improves the convenience of installing the wear-resistant rubber outer ring 3 on the solid rubber inner ring 2.

[0038] In this embodiment, as Figure 4 and Figure 6 shown, a plurality of limiting convex blocks 207 are equidistantly arranged along the circumferential direction on the inner walls of both sides of the positioning groove 206, and a plurality of limiting grooves 302 for the limiting convex blocks 207 to be snapped into are formed along the circumferential direction on the outer walls of both sides of the positioning convex ring 301. The number of the limiting grooves 302 is the same as that of the limiting convex blocks 207. When installing the wear-resistant rubber outer ring 3 on the solid rubber inner ring 2, the limiting convex blocks 207 are aligned and snapped into the limiting grooves 302, thereby radially limiting the wear-resistant rubber outer ring 3 and enabling the wear-resistant rubber outer ring 3 to rotate synchronously with the solid rubber inner ring 2.

[0039] In this embodiment, as Figure 4 and Figure 6 shown, fitting grooves 208 are annularly formed on both sides of the outer wall of the solid rubber inner ring 2, and embedding rings 303 that are snapped into the fitting grooves 208 are provided on both sides of the inner wall of the wear-resistant rubber outer ring 3. After the wear-resistant rubber outer ring 3 is installed in place on the outside of the solid rubber inner ring 2, the embedding rings 303 are aligned and snapped into the fitting grooves 208, preventing debris from entering the gap between the wear-resistant rubber outer ring 3 and the solid rubber inner ring 2 and improving the installation and matching effect.

[0040] In this embodiment, as Figure 6As shown in the figure, a wire mesh 304 is fixedly connected inside the wear-resistant rubber outer ring 3. The wire mesh 304 is of an annular structure, and the wire mesh 304 and the wear-resistant rubber outer ring 3 are of a vulcanized integral structure. By providing the wire mesh 304, the anti-cutting, anti-breaking, and anti-puncturing properties of the wear-resistant rubber outer ring 3 are improved, making it more durable.

[0041] Working principle: During use, the rubber wheel is installed on the handcart through the mounting seat 4. When the rubber wheel is impacted during movement, the skeleton 202, the first buffer groove 203, the second buffer groove 204, and the third buffer groove 205 deform to achieve the purpose of buffering the impact. And through the skeleton 202, multiple reinforcing ribs are fixedly connected inside the first buffer groove 203, the second buffer groove 204, and the third buffer groove 205, enabling the solid rubber inner ring 2 to quickly return to its original shape. Due to the high wear resistance of the wear-resistant rubber outer ring 3, it is not easily worn and can prevent cutting and breaking. After the wear-resistant rubber outer ring 3 is excessively worn, the wear-resistant rubber outer ring 3 is separated and disassembled from the solid rubber inner ring 2, and then a new wear-resistant rubber outer ring 3 is installed and sleeved outside the solid rubber inner ring 2. The positioning convex ring 301 is snapped into the positioning groove 206 axially to limit the position of the wear-resistant rubber outer ring 3, and the limiting convex block 207 is snapped into the limiting groove 302 radially to limit the position of the wear-resistant rubber outer ring 3, facilitating the positioning and assembly of the wear-resistant rubber outer ring 3 and the solid rubber inner ring 2. After the wear-resistant rubber outer ring 3 is excessively worn, only the wear-resistant rubber outer ring 3 needs to be disassembled and replaced, without replacing the entire rubber wheel, thereby increasing the service life of the rubber wheel.

[0042] The above embodiments are the preferred implementation solutions of the present invention. In addition, the present invention can also be implemented in other ways. Any obvious replacement without departing from the concept of the technical solution is within the protection scope of the present invention.

Claims

1. A high-elastic solid rubber wheel for a trolley, characterized in that: It includes a wheel hub (1), a solid rubber inner ring (2), a wear-resistant rubber outer ring (3), and a mounting seat (4). The wheel hub (1) is rotationally connected to the mounting seat (4) through a rotating shaft. The solid rubber inner ring (2) is installed on the outside of the wheel hub (1). A buffer structure is arranged inside the solid rubber inner ring (2). The wear-resistant rubber outer ring (3) is installed on the outside of the solid rubber inner ring (2). The wear-resistant rubber outer ring (3) and the solid rubber inner ring (2) are detachably installed through a fixing structure.

2. The high-elastic solid rubber wheel for a trolley according to claim 1, wherein: An installation groove (101) is annularly formed on the outer wall of the wheel hub (1), and an installation convex ring (201) that is snapped into the installation groove (101) is arranged on the inner wall of the solid rubber inner ring (2).

3. The high-elastic solid rubber wheel for a trolley according to claim 1, characterized in that: The buffer structure includes a framework (202) fixedly connected inside the solid rubber inner ring (2). The framework (202) is a hollow annular structure. A plurality of relief grooves (2021) are formed on the outer wall of the framework (202) along the circumferential direction. The framework (202) and the solid rubber inner ring (2) are integrally vulcanized.

4. The high-elastic solid rubber wheel for a trolley according to claim 3, wherein: The buffer structure further includes a first buffer groove (203) annularly formed inside the solid rubber inner ring (2). The first buffer groove (203) is located at the middle position inside the framework (202). Second buffer grooves (204) are symmetrically and annularly formed on both sides of the first buffer groove (203). The second buffer grooves (204) are also located inside the framework (202). Third buffer grooves (205) are symmetrically and annularly formed on both sides of the framework (202) inside the solid rubber inner ring (2).

5. A high-elastic solid rubber wheel for a trolley according to claim 4, characterized in that: A plurality of reinforcing ribs are fixedly connected inside each of the first buffer groove (203), the second buffer groove (204), and the third buffer groove (205).

6. The high-elastic solid rubber wheel for a trolley according to claim 1, characterized in that: The fixing structure includes a plurality of groups of positioning grooves (206) annularly formed on the outer wall of the solid rubber inner ring (2) and a plurality of groups of positioning convex rings (301) arranged on the inner wall of the wear-resistant rubber outer ring (3). The positioning convex rings (301) correspond to the positioning grooves (206) one by one.

7. The high-elastic solid rubber wheel for a trolley according to claim 6, wherein: Both sides of the positioning groove (206) close to the outer wall of the solid rubber inner ring (2) are in an outward-expanding structure.

8. The high-elastic solid rubber wheel for a trolley according to claim 6, wherein: A plurality of limiting convex blocks (207) are equidistantly arranged on the inner walls of both sides of the positioning groove (206) along the circumferential direction. A plurality of limiting grooves (302) for the limiting convex blocks (207) to be snapped into are formed on the outer walls of both sides of the positioning convex ring (301) along the circumferential direction.

9. The high-elastic solid rubber wheel for a trolley according to claim 6, wherein: Both sides of the outer wall of the solid rubber inner ring (2) are annularly provided with fitting grooves (208). Both sides of the inner wall of the wear-resistant rubber outer ring (3) are provided with embedding rings (303) that are snapped into the fitting grooves (208).

10. A high-elastic solid rubber wheel for a trolley according to claim 1, wherein: A steel wire mesh (304) is fixedly connected inside the wear-resistant rubber outer ring (3). The steel wire mesh (304) is an annular structure. The steel wire mesh (304) and the wear-resistant rubber outer ring (3) are integrally vulcanized.

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