Pulley
Through the combined structure of the bracket, slide wheel and bearing A, the problem of pulley damage requiring overall replacement is solved, and the slide wheel is easily installed and replaced, reducing maintenance costs and improving use safety.
Patent Information
- Application Number
- CN202422523075.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-18
- Publication Date
- 2025-07-29
- Estimated Expiration
- 2034-10-18
AI Technical Summary
In the existing pulley structure, the bracket needs to be replaced as a whole when the pulley is damaged, which increases maintenance costs. The loose or damaged pulleys inside the bracket may lead to a risk of falling off, affecting the safety of use.
The combined structure of the bracket, the slider wheel and the bearing A are adopted. The slider wheel is installed on the inside of the bracket through rivets. The bearing B allows the insertion rod to rotate 360 degrees, and the electroplated cover is inserted into the bracket groove to facilitate the removal and replacement of the slider wheel.
It realizes convenient installation and replacement of skateboard wheels, reduces maintenance costs, and improves use safety and aesthetics.
Smart Images

Figure CN223161576U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of rollers, and specifically relates to a pulley. Background Art
[0002] Pulleys are widely used in various fields, such as sports goods or home appliances. For example, installing pulleys at the bottom of home appliances makes it easier to move them, etc., which is more convenient during use.
[0003] In the prior art, most pulleys include a bearing support, spokes, and a rim, which are an integrated structure, and a rubber tire is sleeved on the outer periphery of the rim. However, if the pulley is damaged, it may be necessary to replace the entire bracket rather than just the pulley, increasing the maintenance cost. At the same time, if the pulley cannot be disassembled inside the bracket, the pulley inside the bracket may become loose or damaged, increasing the risk of the pulley falling off, which may cause accidents and thus is not convenient for use. In view of this, we introduce a pulley. Summary of the Utility Model
[0004] The purpose of the utility model is to provide a pulley to solve the problems raised in the above background art.
[0005] To achieve the above purpose, the utility model provides the following technical solution: A pulley, comprising: a bracket, a skate wheel, and bearing A;
[0006] A top cover is provided at the top of the bracket, and a plug rod is provided between the top cover and the bracket. The plug rod can be inserted into the inside of the bracket;
[0007] The skate wheel is arranged at the inner bottom of the bracket, and electroplated covers are arranged on both sides of the bracket. The electroplated covers are arranged on the outside of the bracket to increase the overall aesthetics of the bracket;
[0008] The number of bearing A is two groups. The two groups of bearing A are arranged inside the skate wheel. An installation mechanism is arranged between the skate wheel and the bracket. Through the rivet of the installation mechanism passing through the through rod A, the skate wheel, and bearing A and entering the inside of the through rod B, the skate wheel is installed inside the bracket.
[0009] Preferably, the installation mechanism includes an installation groove opened inside the bracket. The installation groove and the bracket are integrally formed. The skate wheel is connected to the inside of the bracket. The through rod A passes through one group of bearing A, and the through rod B penetrates through the other group of bearing A. The rivet passes through the installation groove and enters the inside of the through rod A, bearing A, and through rod B, and the rivet can install the skate wheel inside the bracket.
[0010] Preferably, a fixing hole is formed at the top of the bracket. The fixing hole and the bracket are integrally formed. A bearing B is connected inside the fixing hole. A through hole is formed on the surface of the top cover. The through hole and the top cover are integrally formed. The insertion rod passes through the through hole and the bearing B. The arrangement of the bearing B allows the insertion rod to rotate 360 degrees.
[0011] Preferably, an insertion rod is arranged inside the electroplated cover. The insertion rod and the electroplated cover are fixedly arranged. A insertion slot for inserting the insertion rod is formed on the surface of the bracket. The insertion slot and the bracket are integrally formed. When the insertion rod is inserted into the insertion slot, the electroplated cover can be installed.
[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows: In the present utility model, the through rod B passes through a set of bearing A, and the through rod A passes through another set of bearing A. The skate wheels are installed inside the bracket. The through rod A and the through rod B are respectively aligned with the installation slots. The rivets respectively pass through the through rod A, the skate wheels and the bearing A and enter into the through rod B, so that the skate wheels are installed inside the bracket to form an installation, making it more convenient to use.
[0013] At the same time, the bearing B is installed in the fixing hole at the top of the bracket. The top cover seals the bearing B inside the fixing hole, allowing the insertion rod to rotate on the surface of the top cover, so that the insertion rod can rotate 360 degrees. The electroplated covers are respectively covered on the outside of the bracket. At the same time, the equally spaced insertion rods on the surface of the electroplated covers will be inserted into the insertion slots inside the bracket, so as to install the electroplated covers on the side of the bracket, and then the assembly can be completed.
[0014] If the skate wheels inside the bracket are damaged or need to be replaced, the rivets are respectively unscrewed, so that the rivets are removed from the through rod A, the skate wheels and the bearing A and enter into the through rod B, and then the replacement of the skate wheels inside the bracket can be completed. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 is a schematic structural diagram of the present utility model when disassembled;
[0016] Figure 2 is a schematic side view structural diagram of the present utility model.
[0017] In the figure: 1. Insertion rod; 2. Top cover; 3. Through hole; 4. Bearing B; 5. Bracket; 6. Electroplated cover; 7. Skate wheel; 8. Bearing A; 9. Through rod A; 10. Rivet; 11. Fixing hole; 12. Insertion slot; 13. Insertion rod; 14. Installation slot; 15. Through rod B. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0018] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model 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.
[0019] Please refer to Figure 1-2 , the present utility model provides a technical solution: a pulley, including: a bracket 5, a top cover 2 is provided at the top of the bracket 5, and a plug rod 1 is provided between the top cover 2 and the bracket 5;
[0020] A skateboard wheel 7, the skateboard wheel 7 is arranged at the inner bottom of the bracket 5, and electroplated covers 6 are arranged on both sides of the bracket 5;
[0021] Two sets of bearing A8, the number of the two sets of bearing A8 is arranged inside the skateboard wheel 7, and an installation mechanism is arranged between the skateboard wheel 7 and the bracket 5. Through the rivet 10 of the installation mechanism, it passes through the through rod A9, the skateboard wheel 7 and the bearing A8 and enters the inside of the through rod B15, so that the skateboard wheel 7 is installed inside the bracket 5.
[0022] The installation mechanism includes an installation groove 14 opened inside the bracket 5. The installation groove 14 and the bracket 5 are integrally formed. The skateboard wheel 7 is connected to the inside of the bracket 5. The through rod A9 passes through a set of bearing A8, and the through rod B15 penetrates through the other set of bearing A8. The rivet 10 passes through the installation groove 14 and enters the inside of the through rod A9, the bearing A8 and the through rod B15, and the rivet 10 can install the skateboard wheel 7 inside the bracket 5.
[0023] A fixing hole 11 is opened at the top of the bracket 5. The fixing hole 11 and the bracket 5 are integrally formed. A bearing B4 is connected inside the fixing hole 11. A through hole 3 is opened on the surface of the top cover 2. The through hole 3 and the top cover 2 are integrally formed, and the plug rod 1 penetrates through the through hole 3 and the bearing B4. The arrangement of the bearing B4 allows the plug rod 1 to rotate 360 degrees.
[0024] A plugging rod 13 is arranged inside the electroplated cover 6. The plugging rod 13 and the electroplated cover 6 are fixedly arranged. A plugging groove 12 for plugging the plugging rod 13 is opened on the surface of the bracket 5. The plugging groove 12 and the bracket 5 are integrally formed. When the plugging rod 13 is inserted into the inside of the plugging groove 12, the electroplated cover 6 can be installed.
[0025] Specifically, during use, install two sets of bearing A8 on the inner side of the skate wheel 7 respectively, screw in the through rod B15, let the through rod B15 pass through one set of bearing A8, and the through rod A9 pass through the other set of bearing A8. Then install the skate wheel 7 on the inner side of the bracket 5, and align the through rod A9 and the through rod B15 with the installation groove 14 respectively. Then screw in the rivet 10, let the rivet 10 pass through the through rod A9, the skate wheel 7 and the bearing A8 and enter the inside of the through rod B15, so that the skate wheel 7 is installed on the inner side of the bracket 5 to form an installation, making it more convenient to use;
[0026] At the same time, install the bearing B4 in the fixing hole 11 at the top of the bracket 5, then install the top cover 2. The top cover 2 seals the bearing B4 inside the fixing hole 11. Then insert the insertion rod 1, so that the insertion rod 1 can better insert into the inside of the two sets of bearing B4 through the through hole 3 on the surface of the top cover 2, so that the insertion rod 1 can rotate on the surface of the top cover 2, and thus the insertion rod 1 can rotate 360 degrees. Finally, cover the electroplated covers 6 on the outer side of the bracket 5 respectively. At the same time, the insertion rods 13 equidistantly arranged on the surface of the electroplated covers 6 will be inserted into the insertion grooves 12 inside the bracket 5, so as to install the electroplated covers 6 on the side of the bracket 5, and then the assembly can be completed, making it more convenient to use;
[0027] If the skate wheel 7 inside the bracket 5 is damaged or needs to be replaced, unscrew the rivet 10 to release the through rod A9, the skate wheel 7 and the bearing A8 into the inside of the through rod B15, and then the replacement of the skate wheel 7 inside the bracket 5 can be completed.
[0028] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A pulley, characterized in that, Comprising: A bracket (5), a top cover (2) is arranged on the top of the bracket (5), and a plug rod (1) is arranged between the top cover (2) and the bracket (5); A skate wheel (7), the skate wheel (7) is arranged at the inner bottom of the bracket (5), and electroplated covers (6) are arranged on both sides of the bracket (5); Two groups of bearing A (8), the number of the two groups of bearing A (8) is two, the two groups of bearing A (8) are arranged inside the skate wheel (7), and an installation mechanism is arranged between the skate wheel (7) and the bracket (5). The rivet (10) of the installation mechanism passes through the through rod A (9), the skate wheel (7) and the bearing A (8) and enters the inside of the through rod B (15) to install the skate wheel (7) inside the bracket (5).
2. A pulley according to claim 1, characterized in that, The installation mechanism includes an installation groove (14) opened inside the bracket (5), the skate wheel (7) is connected to the inside of the bracket (5), the through rod A (9) passes through one group of bearing A (8), the through rod B (15) penetrates through the other group of bearing A (8), and the rivet (10) passes through the installation groove (14) and enters the inside of the through rod A (9), the bearing A (8) and the through rod B (15).
3. A pulley according to claim 1, characterized in that, A fixing hole (11) is opened at the top of the bracket (5), a bearing B (4) is connected inside the fixing hole (11), a through hole (3) is opened on the surface of the top cover (2), and the plug rod (1) penetrates through the through hole (3) and the bearing B (4).
4. A pulley according to claim 1, wherein, A plugging rod (13) is arranged inside the electroplated cover (6), and a plugging groove (12) for plugging the plugging rod (13) is opened on the surface of the bracket (5).