Shock-proof wheel of draw-bar box
By designing a combination structure of the fixing frame and telescopic frame in the trolley box shock absorber, and using the cooperation of elastic support plate and spring, the problem of poor shock absorption effect of the existing shock absorber under different weight conditions is solved, achieving better results buffering effect.
Patent Information
- Application Number
- CN202421277472.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-06
- Publication Date
- 2025-01-03
- Estimated Expiration
- 2034-06-06
AI Technical Summary
When the buffer chamber parts are harder, it is difficult to squeeze when the existing shock absorber wheels are empty or carry lightweight cargo, and the buffer chamber parts are deformed and cannot be buffered. When the buffer chamber parts are harder, the extrusion of heavy goods leads to excessive deformation. , unable to reset, resulting in poor shock absorption effect.
A trolley box shock absorber including a fixing frame and a sliding plug is designed to buffer vibrations by the elastic force of the elastic support plate and the buffer portion. When carrying heavy goods, the telescopic frame and the spring in the fixing frame are Cooperate with the damping block to reduce the movement amplitude using friction and ensure the buffering effect.
According to the use status of the suitcase, it effectively buffers cargo of different weights, improves the shock absorption effect and ensures good buffering performance under different load conditions.
Smart Images
Figure CN222291392U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of shock-absorbing wheels, and in particular relates to a shock-absorbing wheel for a trolley case. Background Art
[0002] Luggage is a general term for bags, and is a general term for various bags used to carry things, including general shopping bags, handbags, clutches, wallets, backpacks, shoulder bags, shoulder bags, waist bags and various trolley cases, etc. Trolley cases refer to suitcases with a drawbar and rollers. Because of its convenience, it is widely used for traveling and going out with clothes. At the same time, trolley cases are also divided into single-tube drawbars and double-tube drawbars because they have a drawbar on the box. The drawbar tube is also divided into square tubes and round tubes, which is convenient for dragging while walking and greatly reduces the burden. In order to reduce the shaking of the trolley case when it is in use, it is necessary to set shock-absorbing wheels at the bottom of the trolley case.
[0003] The patent with application number 201922155170.8 discloses a shock-absorbing trolley case wheel group structure, including a wheel seat assembly, a buffer cavity is provided at the lower part of the wheel seat assembly, a buffer pad is embedded in the buffer cavity, an axle seat portion is provided at the bottom of the buffer cavity, a roller is connected to the axle seat portion, the wheel seat assembly includes a fixed seat and a connecting shaft, the upper end of the connecting shaft is connected to the fixed seat, the rear side of the lower end of the connecting shaft is integrally connected to a tail seat, and the buffer cavity is provided on the tail seat.
[0004] The above technical solution utilizes a buffer cavity to cushion the trolley case. The working principle is to utilize the extrusion force generated by vibration to cause elastic deformation of the components of the buffer cavity, thereby cushioning the vibration of the trolley case. If the hardness of the buffer cavity components is relatively high, it is difficult to squeeze the buffer cavity components to deform when the box is empty or carrying light goods, resulting in the inability to cushion the trolley case. If the hardness of the buffer cavity components is low, heavy goods will squeeze the buffer cavity components, causing excessive deformation and the inability to reset, resulting in poor shock-absorbing effects of existing shock-absorbing wheels on trolley cases of different weights. Utility Model Content
[0005] (1) Technical issues to be solved
[0006] In view of the deficiencies in the prior art, the purpose of the present utility model is to provide a shock-absorbing wheel for a trolley case, which aims to solve the problem that under the prior art, if the hardness of the buffer cavity component is high, it is difficult to squeeze the buffer cavity component to cause deformation when the box is empty or carrying light goods, resulting in an inability to cushion the trolley case; if the hardness of the buffer cavity component is low, heavy goods will squeeze the buffer cavity component, causing it to deform excessively and unable to be reset, resulting in the technical problem that the existing shock-absorbing wheels have poor shock-absorbing effects on trolley cases of different weights.
[0007] (2) Technical solution
[0008] In order to solve the above-mentioned technical problems, the utility model provides a trolley case shock-absorbing wheel, which comprises a shock-absorbing wheel body and a fixed frame installed on the top of the shock-absorbing wheel body, the shock-absorbing wheel body is provided with a telescopic frame slidably inserted in the fixed frame, the bottom end of the telescopic frame is provided with a buffer portion, the buffer portion is provided with a buffer groove with an arc-shaped structure, the bottom end of the fixed frame is provided with a telescopic groove, the bottom end of the inner wall of the telescopic groove is fixed with an elastic support plate abutting against the telescopic frame, and the telescopic groove is embedded with a spring abutting against the telescopic frame.
[0009] When the trolley case shock-absorbing wheel of the technical solution is used, a fixed frame and a telescopic frame slidably inserted in the fixed frame are provided. When the suitcase is empty or carries light goods, the elastic support plate supports the telescopic frame, and at the same time, the elastic force of the elastic support plate and the buffer part buffers the vibration generated by the suitcase. The buffer part shrinks into the buffer groove during the buffering process. When the suitcase carries heavy goods, the weight of the goods causes the telescopic frame to squeeze the elastic support plate to deform and then move to the top of the fixed frame. At the same time, the buffer part moves downward under the influence of the weight so that the rubber block contacts the fixed frame to support it. The spring in the fixed frame buffers the vibration generated by the suitcase, and during the buffering process, the telescopic frame is tightly connected with the damping block on the inner wall of the fixed frame, and the friction between the telescopic frame and the damping block reduces the movement amplitude of the telescopic frame. When the goods are taken out of the suitcase, the elastic force of the spring pushes the telescopic frame to move below the elastic support plate, so that the elastic support plate supports the suitcase, which is convenient for buffering goods of different weights according to the use state of the suitcase, thereby improving the buffering and shock-absorbing effect of the suitcase.
[0010] Preferably, a connecting plate fixed to the suitcase is installed at the top end of the fixing frame, and a plurality of through holes are formed on the connecting plate.
[0011] Furthermore, a mounting shaft is rotatably inserted in the shock-absorbing wheel body, and a mounting portion is fixed to the bottom end of the buffer portion.
[0012] Furthermore, a mounting hole is provided at the bottom end of the mounting portion, and the mounting shaft is fixedly inserted in the mounting hole.
[0013] Furthermore, a rubber block is fixed to the inner wall of the buffer groove, and the top end of the rubber block abuts against the telescopic frame.
[0014] Furthermore, a damping block is embedded in the top of the inner wall of the telescopic slot, and the damping block is tightly connected to the outer wall of the telescopic frame.
[0015] Furthermore, an anti-slip portion is protruding from the bottom end of the fixing frame, and the anti-slip portion abuts against the telescopic frame.
[0016] (3) Beneficial effects
[0017] Compared with the prior art, the beneficial effects of the utility model are:
[0018] The utility model is provided with a fixed frame and a telescopic frame slidably inserted in the fixed frame. When the luggage box is empty or carries light goods, the elastic support plate supports the telescopic frame and at the same time, the elastic force of the elastic support plate and the buffer part buffers the vibration generated by the luggage box. The buffer part shrinks into the buffer groove during the buffering process. When the luggage box carries heavy goods, the weight of the goods causes the telescopic frame to squeeze the elastic support plate to deform and then move to the top of the fixed frame. At the same time, the buffer part moves downward under the influence of the weight so that the rubber block contacts the fixed frame to support it. The spring in the fixed frame buffers the vibration generated by the luggage box. During the buffering process, the telescopic frame is tightly connected with the damping block on the inner wall of the fixed frame, and the movement amplitude of the telescopic frame is reduced by the friction between the damping block. When the goods are taken out of the luggage box, the elastic force of the spring pushes the telescopic frame to move below the elastic support plate, so that the elastic support plate supports the luggage box, which is convenient for buffering goods of different weights according to the use state of the luggage box, thereby improving the buffering and shock-absorbing effect of the luggage box. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative work.
[0020] Figure 1 It is a schematic diagram of the structure of the utility model;
[0021] Figure 2 It is a schematic diagram of the split structure in the utility model;
[0022] Figure 3 It is a structural schematic diagram of the telescopic frame in the utility model;
[0023] Figure 4 It is a schematic cross-sectional structure diagram of the fixing frame of the utility model.
[0024] The markings in the attached drawings are: 1. shock-absorbing wheel body; 2. fixing frame; 3. connecting plate; 4. telescopic frame; 5. mounting shaft; 6. mounting part; 7. buffer groove; 8. through hole; 9. buffer part; 10. mounting hole; 11. rubber block; 12. elastic support plate; 13. telescopic groove; 14. damping block; 15. spring; 16. anti-slip part. DETAILED DESCRIPTION
[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0026] This specific implementation is a trolley case shock-absorbing wheel, and its structural schematic diagram is as follows Figure 1 and Figure 2 As shown, the shock-absorbing wheel of the trolley case includes a shock-absorbing wheel body 1 and a fixing frame 2 installed on the top of the shock-absorbing wheel body 1, a telescopic frame 4 slidably inserted in the fixing frame 2 is arranged in the shock-absorbing wheel body 1, a buffer portion 9 is arranged at the bottom end of the telescopic frame 4, a buffer groove 7 with an arc-shaped structure is opened in the buffer portion 9, a telescopic groove 13 is opened at the bottom end of the fixing frame 2, an elastic support plate 12 abutting against the telescopic frame 4 is fixed to the bottom end of the inner wall of the telescopic groove 13, and a spring 15 abutting against the telescopic frame 4 is embedded in the telescopic groove 13. When the suitcase is empty or carrying light goods, the elastic support plate 12 supports the telescopic frame 4, and at the same time, the elastic force of the elastic support plate 12 and the buffer portion 9 buffers the vibration generated by the suitcase, and the buffer portion 9 shrinks into the buffer groove 7 during the buffering process.
[0027] A connecting plate 3 fixed to the trolley case is installed at the top of the fixing frame 2, and a plurality of through holes 8 are opened on the connecting plate 3. A mounting shaft 5 is rotatably inserted in the shock-absorbing wheel body 1. A mounting part 6 is fixed to the bottom end of the buffer part 9. A mounting hole 10 is opened at the bottom end of the mounting part 6, and the mounting shaft 5 is fixedly inserted in the mounting hole 10.
[0028] like Figure 3 and Figure 4As shown, a rubber block 11 is fixed to the inner wall of the buffer groove 7, and the top of the rubber block 11 abuts against the telescopic frame 4. A damping block 14 is embedded in the top of the inner wall of the telescopic groove 13, and the damping block 14 is tightly connected to the outer wall of the telescopic frame 4. An anti-slip portion 16 is protruded from the bottom end of the fixed frame 2, and the anti-slip portion 16 abuts against the telescopic frame 4. The anti-slip portion 16 prevents the telescopic frame 4 from falling off from the fixed frame 2 due to the thrust of the spring 15 when resetting. When the suitcase carries heavy goods, the weight of the goods causes the telescopic frame 4 to squeeze the elastic support plate 12 to deform and move to The top of the fixing frame 2 is moved downward by the buffer part 9 under the influence of the weight, so that the rubber block 11 contacts the fixing frame 2 to support it. The spring 15 in the fixing frame 2 buffers the vibration generated by the suitcase, and in the buffering process, the telescopic frame 4 is tightly connected with the damping block 14 on the inner wall of the fixing frame 2, and the movement amplitude of the telescopic frame 4 is reduced by the friction between the damping block 14. When the goods are taken out of the suitcase, the elastic force of the spring 15 pushes the telescopic frame 4 to move below the elastic support plate 12, so that the elastic support plate 12 supports the suitcase.
[0029] The schematic diagram of the disassembled structure of the shock-absorbing wheel of the trolley case is as follows: Figure 2 As shown, the structural schematic diagram of the telescopic frame 4 is as shown Figure 3 As shown, the cross-sectional structure diagram of the fixing frame 2 is as follows Figure 4 shown.
[0030] Working principle: When the trolley case shock-absorbing wheel of the present technical solution is used, when the suitcase is empty or carrying light cargo, the elastic support plate 12 supports the telescopic frame 4, and at the same time, the elastic force of the elastic support plate 12 and the buffer part 9 buffers the vibration generated by the suitcase. The buffer part 9 shrinks into the buffer groove 7 during the buffering process. When the suitcase carries heavy cargo, the weight of the cargo causes the telescopic frame 4 to squeeze the elastic support plate 12 to deform and then move to the top of the fixed frame 2. At the same time, the buffer part 9 moves downward under the influence of the weight, causing the rubber block 11 to contact the fixed frame 2. The fixed frame 2 contacts and supports it, the spring 15 in the fixed frame 2 buffers the vibration generated by the suitcase, and during the buffering process, the telescopic frame 4 is tightly connected with the damping block 14 on the inner wall of the fixed frame 2, and the movement amplitude of the telescopic frame 4 is reduced by the friction between the telescopic frame 4 and the damping block 14. When the goods are taken out of the suitcase, the elastic force of the spring 15 pushes the telescopic frame 4 to move under the elastic support plate 12, so that the elastic support plate 12 supports the suitcase, which is convenient for buffering goods of different weights according to the use status of the suitcase, thereby improving the buffering and shock-absorbing effect of the suitcase.
[0031] All technical features in this embodiment can be freely combined according to actual needs.
[0032] Finally, it should be noted that the above is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model shall be included in the protection scope of the present utility model.
Claims
1. A trolley case shock-absorbing wheel, comprising a shock-absorbing wheel body (1) and a fixing frame (2) mounted on the top of the shock-absorbing wheel body (1), characterized in that: The shock-absorbing wheel body (1) is provided with a telescopic frame (4) which is slidably inserted in the fixed frame (2); the bottom end of the telescopic frame (4) is provided with a buffer portion (9); the buffer portion (9) is provided with a buffer groove (7) in an arc-shaped structure; the bottom end of the fixed frame (2) is provided with a telescopic groove (13); the bottom end of the inner wall of the telescopic groove (13) is fixed with an elastic support plate (12) which abuts against the telescopic frame (4); and the telescopic groove (13) is embedded with a spring (15) which abuts against the telescopic frame (4).
2. The shock-absorbing wheel of a suitcase according to claim 1, characterized in that: A connecting plate (3) fixed to the trolley case is installed at the top end of the fixing frame (2), and a plurality of through holes (8) are provided on the connecting plate (3).
3. The shock-absorbing wheel of a suitcase according to claim 1, characterized in that: A mounting shaft (5) is rotatably inserted into the shock-absorbing wheel body (1), and a mounting portion (6) is fixed to the bottom end of the buffer portion (9).
4. The shock-absorbing wheel of a suitcase according to claim 3, characterized in that: A mounting hole (10) is provided at the bottom end of the mounting portion (6), and the mounting shaft (5) is fixedly inserted in the mounting hole (10).
5. The shock-absorbing wheel of a suitcase according to claim 1, characterized in that: A rubber block (11) is fixed to the inner wall of the buffer groove (7), and the top end of the rubber block (11) abuts against the telescopic frame (4).
6. The shock-absorbing wheel of a suitcase according to claim 1, characterized in that: A damping block (14) is embedded in the top end of the inner wall of the telescopic slot (13), and the damping block (14) is tightly connected to the outer wall of the telescopic frame (4).
7. The shock-absorbing wheel of a suitcase according to claim 6, characterized in that: An anti-slip portion (16) is protruding from the bottom end of the fixed frame (2), and the anti-slip portion (16) is in contact with the telescopic frame (4).