Damping wheel for luggage case
By designing shock absorbing devices on the trunk wheels and using shock absorbing and releasing energy, the existing trunk wheels are solved for the problem of heavy vibration on uneven roads, achieving a smoother suitcase movement and a better use experience .
Patent Information
- Application Number
- CN202421247674.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-03
- Publication Date
- 2025-02-07
- Estimated Expiration
- 2034-06-03
AI Technical Summary
Existing trunk wheels can cause violent vibrations when used on uneven roads, causing tiring, noisy and potentially damage internal items and the trunk itself.
A shock absorber for suitcases is designed, including wheel seats, wheels and shock absorber devices. The shock absorbing device consists of shock absorbing springs, lower wheel forks, wheel fixing nails and wheel fork fixing nails, which absorb and release energy to slow down vibration transmission.
It effectively reduces vibration during exercise of the suitcase, reduces noise, buffers and protects the items inside the suitcase, improves the comfort of use, and can adjust the shock absorber according to needs.
Smart Images
Figure CN222431980U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of luggage cases, in particular to a shock-absorbing wheel for a luggage case. Background Art
[0002] In many travel occasions, a suitcase has become an essential equipment for travel. A suitcase is usually composed of a case body and wheels, and the wheels can be used to move the suitcase very conveniently.
[0003] In the prior art, when the wheels at the bottom of the suitcase roll over the uneven bottom surface, they will generate severe vibrations, which not only makes dragging laborious and noisy, but also easily damages the internal objects and the suitcase itself. Therefore, a shock-absorbing wheel is needed to reduce the vibration and noise when dragging the suitcase. Utility Model Content
[0004] The utility model aims to overcome the deficiencies in the prior art and provides a shock-absorbing wheel for a luggage case.
[0005] The purpose of this utility model is achieved through the following technical solutions:
[0006] The wheel seat is fixed to the box body, the wheel is connected to the shock absorbing device, the wheel is provided with two pieces, the two wheels are connected and fixed by wheel fixing nails passing through the shock absorbing device, the shock absorbing device reduces the vibration of the luggage case caused by uneven road surface or other reasons during movement, so that the luggage case is more stable. The shock absorbing device is connected to an upper wheel fork, the upper wheel fork is fixed below the wheel seat, the upper wheel fork is provided with a fixing hole matching with the wheel seat fixing nail, the lower half of the wheel seat fixing nail is connected and fixed to the upper wheel fork, and the upper half of the wheel seat fixing nail is connected and fixed to the wheel seat. The shock absorbing device comprises a shock absorbing spring, a lower wheel fork, a wheel fixing nail, and a wheel fork fixing nail, the top of the shock absorbing spring abuts against the upper wheel fork, and the bottom of the shock absorbing spring abuts against the lower wheel fork, and the spring itself absorbs and releases energy. When vibration occurs, the lower wheel fork compresses the spring upward to temporarily store energy, and then the spring slowly recovers and releases, thereby slowing down the transmission of vibration and realizing the shock absorbing function.
[0007] In one of the embodiments, the lower wheel fork is provided with a wheel connecting hole, the wheel fixing nail passes through the wheel connecting hole and is fixed to the wheel, the lower wheel fork is provided with a wheel fork connecting hole, the wheel fork fixing nail passes through the wheel fork connecting hole and is fixed to the upper wheel fork, the lower wheel fork is movably connected to the upper wheel fork, and when vibration occurs, the lower wheel fork can rotate up and down, and the vibration is transmitted to the suitcase by slowing down the compression spring, thereby realizing the shock absorption function.
[0008] In one of the embodiments, a wheel seat fixing nail is provided above the upper wheel fork, and the wheel seat fixing nail is in the shape of a cylinder whose diameter changes in steps with height. A fixing screw is provided in the upper wheel fork, and the top of the wheel seat fixing nail is fixed at the center of the wheel seat. The wheel seat fixing nail passes through the center hole of the wheel seat from top to bottom and is fixed by its own raised part to avoid completely passing through the wheel seat. After the bottom of the wheel seat fixing nail is inserted into the upper wheel fork, it is clamped and fixed by the fixing screw. After the bottom of the wheel seat fixing nail is inserted into the fixing hole of the upper wheel fork, the fixing screw is laterally penetrated into the upper wheel fork to reduce the internal gap of the fixing hole and clamp the bottom of the wheel seat fixing nail to achieve fixation.
[0009] In one embodiment, the lower wheel fork is provided with a shock absorbing spring abutment protrusion, the bottom of the shock absorbing spring is sleeved with the shock absorbing spring abutment protrusion, the shock absorbing spring abutment protrusion is in the shape of a cylindrical protrusion, and the diameter of the shock absorbing spring abutment protrusion is slightly smaller than the diameter of the shock absorbing spring.
[0010] In one of the embodiments, the shock-absorbing spring is provided with a deformable soft rubber on the outside, which protects the spring to prevent foreign objects from getting stuck in the spring and affecting the shock-absorbing effect. The deformable soft rubber is spring-shaped and has elastic force. The top of the deformable soft rubber abuts against the upper wheel fork, and the bottom of the deformable soft rubber abuts against the lower wheel fork. When the lower wheel fork rotates upward, the deformable soft rubber is compressed to absorb energy, and then slowly recovers and releases to slow down the transmission of vibration.
[0011] In one embodiment, the upper wheel fork is provided with an adjustment device, which includes an adjustment screw and an adjustment seat. The adjustment seat is cylindrical with an opening facing upward and a flange. The adjustment screw is threadedly connected to the upper wheel fork, and the height is adjusted by the number of rotations.
[0012] In one of the embodiments, the upper wheel fork is provided with an adjustment hole, the adjustment screw passes through the adjustment hole, an adjustment seat is provided at the bottom of the adjustment screw, the bottom of the adjustment seat abuts against the top of the shock absorbing spring, and the adjustment seat controls the compression state of the shock absorbing spring when there is no vibration.
[0013] In one of the embodiments, a thread is provided on the inner side of the adjustment hole, and the adjustment screw controls the length of the bottom of the adjustment screw passing through the adjustment hole through the thread. When the adjustment screw is rotated downward, the length of the shock absorbing spring is reduced, the internal coil is tighter, more elastic potential energy is stored when there is no vibration, and the lower wheel fork is less likely to compress the spring. At this time, the spring is "harder" and can absorb and dissipate energy more quickly, and the up and down shaking amplitude and jitter of the suitcase during shock absorption are less. When the adjustment screw is rotated upward, the length of the shock absorbing spring is increased, the internal coil is looser, and less elastic potential energy is stored when there is no vibration. The lower wheel fork is easier to compress the spring. At this time, the spring is "softer" and can absorb and dissipate more energy, and has a better buffering effect.
[0014] In one of the embodiments, a circle of raised plastic cards is provided on the inner side of the upper wheel fork, and the wheel seat fixing nail is provided with a wheel nail fixing groove. The inner diameter of the plastic card is smaller than the bottom diameter of the wheel seat fixing nail. The plastic card can clamp the bottom of the wheel seat fixing nail and prevent the wheel seat fixing nail from directly colliding with the fixing screw, thereby greatly reducing noise.
[0015] In one embodiment, the wheel has two pieces, and the two pieces of the wheel are fixed by wheel fixing nails passing through the lower wheel fork. The wheel with a separated design has better load-bearing capacity and is easy to replace.
[0016] Beneficial effects of the utility model:
[0017] Due to the adoption of the above technical solution, the utility model effectively reduces the vibration generated when the suitcase moves. When the user pushes or pulls the suitcase, the shock-absorbing wheels can effectively absorb the vibration and reduce the noise, effectively buffer and protect the objects inside the suitcase, reduce the bumpy feeling caused to the passengers by the suitcase during travel, improve the comfort, and the shock-absorbing device of the shock-absorbing wheels can adjust the softness and hardness, so as to adapt to more different usage scenarios. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.
[0019] Figure 1 This is an exploded view of the utility model.
[0020] Figure 2 It is a cross-sectional view of the utility model.
[0021] Figure 3 This is a three-dimensional diagram of the lower wheel fork.
[0022] Figure 4 This is an exploded view of the deformed soft rubber.
[0023] Figure 5 It is a cross-sectional view of the deformed soft rubber.
[0024] Figure 6 This is an exploded diagram of the adjusted state.
[0025] Figure 7 It is a cross-sectional view of the uncompressed state with adjustment.
[0026] Figure 8 It is a cross-sectional view of the compressed state with adjustment.
[0027] Fig. 9It is a three-dimensional diagram of the utility model.
[0028] Fig.10 This is a state diagram used in the present utility model.
[0029] The numbers in the figure represent: box body 1, wheel seat 2, wheel 3, upper wheel fork 4, wheel seat fixing nail 5, wheel fixing nail 6, wheel fork fixing nail 7, shock absorbing spring 8, lower wheel fork 9, wheel fork connecting hole 10, wheel connecting hole 11, fixing screw 12, shock absorbing spring abutting protrusion 13, deformable soft rubber 14, adjusting screw 15, adjusting seat 16, adjusting hole 17, plastic card 18, wheel nail fixing groove 19. DETAILED DESCRIPTION
[0030] In order to facilitate the understanding of the present invention, the present invention will be described more comprehensively with reference to the relevant drawings. The drawings provide preferred embodiments of the present invention. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thoroughly and comprehensively understood.
[0031] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.
[0032] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific implementations and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.
[0033] This utility model please refer to Figure 1-10 :
[0034] A shock-absorbing wheel for a suitcase comprises a wheel seat 2 and a wheel 3, wherein the wheel seat 2 is fixed to a box body 1, the wheel 3 is connected to a shock-absorbing device, the shock-absorbing device is connected to an upper wheel fork 4, the upper wheel fork 4 is fixed below the wheel seat 2, the shock-absorbing device comprises a shock-absorbing spring 8, a lower wheel fork 9, a wheel fixing nail 6, and a wheel fork fixing nail 7, the top of the shock-absorbing spring 8 abuts against the upper wheel fork 4, and the bottom of the shock-absorbing spring 8 abuts against the lower wheel fork 9.
[0035] By adopting the above technical solution, the shock absorbing device is used to reduce the vibration of the suitcase caused by uneven road surface or other reasons during movement, so that the suitcase is more stable. The wheel 3 is connected to the upper wheel fork 4 through the shock absorbing device. The upper wheel fork 4 is fixed under the wheel seat 2. The shock absorbing device is provided with a shock absorbing spring 8 and a lower wheel fork 9. The lower wheel fork 9 is connected to the wheel 3 and the upper wheel fork 4. The top of the shock absorbing spring 8 abuts against the upper wheel fork 4, and the bottom of the shock absorbing spring 8 abuts against the lower wheel fork 9. By utilizing the spring's own ability to absorb and release energy, when vibration occurs, the lower wheel fork 9 compresses the spring upward to temporarily store energy, and then the spring slowly recovers and releases, thereby slowing down the transmission of vibration and achieving the shock absorbing function.
[0036] Preferably, the lower wheel fork 9 is provided with a wheel connecting hole 11, the wheel fixing nail 6 passes through the wheel connecting hole 11 and is fixed to the wheel 3, the lower wheel fork 9 is provided with a wheel fork connecting hole 10, the wheel fork fixing nail 7 passes through the wheel fork connecting hole 10 and is fixed to the upper wheel fork 4.
[0037] By adopting the above technical solution, the wheel fixing nail 6 passes through the wheel connecting hole 11 and is fixed to the wheel 3, the fork fixing nail 7 passes through the fork connecting hole 10 and is fixed to the upper wheel fork 4, and the lower wheel fork 9 is movably connected to the upper wheel fork 4. When vibration occurs, the lower wheel fork 9 can rotate up and down, and the vibration is transmitted to the suitcase by compressing the spring to achieve a shock-absorbing function.
[0038] Preferably, a wheel seat fixing nail 5 is provided above the upper wheel fork 4, a fixing screw 12 is provided inside the upper wheel fork 4, the top of the wheel seat fixing nail 5 is fixed to the center of the wheel seat 2, and the bottom of the wheel seat fixing nail 5 is inserted into the upper wheel fork 4 and fixed by the fixing screw 12.
[0039] By adopting the above technical scheme, the wheel seat fixing nail 5 above the upper wheel fork 4 is in the shape of a cylinder whose diameter changes in steps with the height. A fixing screw 12 is provided in the upper wheel fork 4. The top of the wheel seat fixing nail 5 is fixed to the center of the wheel seat 2. The wheel seat fixing nail 5 passes through the center hole of the wheel seat 2 from top to bottom, and is fixed by its own raised part to avoid completely passing through the wheel seat 2. After the bottom of the wheel seat fixing nail 5 is inserted into the upper wheel fork 4, it is clamped and fixed by the fixing screw 12. After the bottom of the wheel seat fixing nail 5 is inserted into the fixing hole of the upper wheel fork 4, the fixing screw 12 penetrates the upper wheel fork 4 horizontally to reduce the internal gap of the fixing hole and clamps the bottom of the wheel seat fixing nail 5 to achieve fixation.
[0040] Preferably, the lower wheel fork 9 is provided with a shock absorbing spring abutting protrusion 13 , and the bottom of the shock absorbing spring 8 is sleeved with the shock absorbing spring abutting protrusion 13 .
[0041] By adopting the above technical solution, the shock absorbing spring abutting protrusion 13 of the lower wheel fork 9 is sleeved with the bottom of the shock absorbing spring 8. The shock absorbing spring abutting protrusion 13 is in the shape of a cylindrical protrusion, and the diameter of the shock absorbing spring abutting protrusion 13 is slightly smaller than the diameter of the shock absorbing spring 8.
[0042] Preferably, the shock absorbing spring 8 is provided with a deformable soft rubber 14 outside, the top of the deformable soft rubber 14 abuts against the upper wheel fork 4, and the bottom of the deformable soft rubber 14 abuts against the lower wheel fork 9.
[0043] By adopting the above technical solution, the deformable soft rubber 14 outside the shock-absorbing spring 8 protects the spring and prevents foreign objects from getting stuck in the spring and affecting the shock-absorbing effect. The deformable soft rubber 14 is spring-shaped and has elastic force. The top of the deformable soft rubber 14 abuts against the upper wheel fork 4, and the bottom of the deformable soft rubber 14 abuts against the lower wheel fork 9. When the lower wheel fork 9 rotates upward, the deformable soft rubber 14 is compressed to absorb energy, and then slowly recovers and releases to slow down the transmission of vibration.
[0044] Preferably, the upper wheel fork 4 is provided with an adjusting device, and the adjusting device includes an adjusting screw 15 and an adjusting seat 16 .
[0045] By adopting the above technical solution, the adjustment device of the upper wheel fork 4 includes an adjustment screw 15 and an adjustment seat 16. The adjustment seat 16 is cylindrical with an opening facing upward and a flange. The adjustment screw 15 is threadedly connected to the upper wheel fork 4, and the height is adjusted by the number of rotations.
[0046] Preferably, the upper wheel fork 4 is provided with an adjustment hole 17 , the adjustment screw 15 passes through the adjustment hole 17 , an adjustment seat 16 is provided at the bottom of the adjustment screw 15 , and the bottom of the adjustment seat 16 abuts against the top of the shock absorbing spring 8 .
[0047] By adopting the above technical solution, the adjusting screw 15 passes through the adjusting hole 17 and can adjust the height according to the number of rotations. An adjusting seat 16 is provided at the bottom of the adjusting screw 15, and the bottom of the adjusting seat 16 abuts against the top of the shock-absorbing spring 8. The adjusting seat 16 controls the compression state of the shock-absorbing spring 8 when there is no vibration.
[0048] Preferably, the inner side of the adjusting hole 17 is provided with threads, and the adjusting screw 15 controls the length of the bottom of the adjusting screw 15 passing through the adjusting hole 17 through the threads.
[0049] By adopting the above technical solution, the thread on the inner side of the adjusting hole 17 allows the adjusting screw 15 to control the length of the bottom of the adjusting screw 15 passing through the adjusting hole 17 by rotating the number of circles. When the adjusting screw 15 is rotated downward, the length of the shock absorbing spring 8 is reduced, the internal coil is tighter, and more elastic potential energy is stored when there is no vibration. The lower wheel fork 9 is less likely to compress the spring. At this time, the spring is "harder" and can absorb and dissipate energy more quickly. The up and down shaking amplitude and jitter of the suitcase during shock absorption are less. When the adjusting screw 15 is rotated upward, the length of the shock absorbing spring 8 is increased, the internal coil is looser, and the elastic potential energy stored when there is no vibration is less. The lower wheel fork 9 is easier to compress the spring. At this time, the spring is "softer", which can absorb and dissipate more energy and has a better buffering effect. Users can adjust the shock absorption hardness according to their own needs.
[0050] Preferably, a circle of raised plastic cards 18 is provided on the inner side of the upper wheel fork 4 , and the wheel seat fixing nail 5 is provided with a wheel nail fixing groove 19 , and the inner diameter of the plastic card 18 is smaller than the bottom diameter of the wheel seat fixing nail 5 .
[0051] By adopting the above technical solution, the plastic clip 18 protruding from the inner side of the upper wheel fork 4 can clamp the bottom of the wheel seat fixing nail 5 and prevent the wheel seat fixing nail 5 from directly colliding with the fixing screw 12, thereby greatly reducing noise.
[0052] Preferably, the wheel 3 has two pieces, and the two pieces of the wheel 3 are fixed by a wheel fixing nail 6 passing through the lower wheel fork 9.
[0053] By adopting the above technical solution, the wheel 3 of the shock-absorbing wheel has a better bearing capacity and is easy to replace.
[0054] Working principle: By utilizing the spring's ability to absorb and release energy, when vibration occurs, the lower wheel fork 9 compresses the spring upward to temporarily store energy, and then the spring slowly recovers and releases it, thereby slowing down the transmission of vibration and achieving a shock-absorbing function.
[0055] When using, the user adjusts the shock absorber according to needs, and then drags it normally.
[0056] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.
Claims
1. A shock-absorbing wheel for a luggage case, comprising a wheel seat (2) and a wheel (3), wherein the wheel seat (2) is fixed to a luggage case body (1), and characterized in that: The wheel (3) is connected to a shock absorbing device, and the shock absorbing device is connected to an upper wheel fork (4). The upper wheel fork (4) is fixed below the wheel seat (2). The shock absorbing device comprises a shock absorbing spring (8), a lower wheel fork (9), a wheel fixing nail (6), and a wheel fork fixing nail (7). The top of the shock absorbing spring (8) abuts against the upper wheel fork (4), and the bottom of the shock absorbing spring (8) abuts against the lower wheel fork (9).
2. The shock-absorbing wheel for a luggage case according to claim 1, characterized in that: The lower wheel fork (9) is provided with a wheel connection hole (11), the wheel fixing nail (6) passes through the wheel connection hole (11) and is fixed to the wheel (3), the lower wheel fork (9) is provided with a wheel fork connection hole (10), the wheel fork fixing nail (7) passes through the wheel fork connection hole (10) and is fixed to the upper wheel fork (4).
3. The shock-absorbing wheel for a luggage case according to claim 1, characterized in that: A wheel seat fixing nail (5) is provided above the upper wheel fork (4), a fixing screw (12) is provided inside the upper wheel fork (4), the top of the wheel seat fixing nail (5) is fixed at the center of the wheel seat (2), and the bottom of the wheel seat fixing nail (5) is inserted into the upper wheel fork (4) and is clamped and fixed by the fixing screw (12).
4. The shock-absorbing wheel for a luggage case according to claim 1, characterized in that: The lower wheel fork (9) is provided with a shock absorbing spring abutting protrusion (13), and the bottom of the shock absorbing spring (8) is sleeved with the shock absorbing spring abutting protrusion (13).
5. The shock-absorbing wheel for a luggage case according to claim 1, characterized in that: The shock absorbing spring (8) is provided with a deformable soft rubber (14) on the outside, the top of the deformable soft rubber (14) abuts against the upper wheel fork (4), and the bottom of the deformable soft rubber (14) abuts against the lower wheel fork (9).
6. The shock-absorbing wheel for a luggage case according to claim 1, characterized in that: The upper wheel fork (4) is provided with an adjustment device, and the adjustment device comprises an adjustment screw (15) and an adjustment seat (16).
7. The shock-absorbing wheel for a luggage case according to claim 6, characterized in that: The upper wheel fork (4) is provided with an adjustment hole (17), the adjustment screw (15) passes through the adjustment hole (17), an adjustment seat (16) is provided at the bottom of the adjustment screw (15), and the bottom of the adjustment seat (16) abuts against the top of the shock absorbing spring (8).
8. The shock-absorbing wheel for a luggage case according to claim 7, characterized in that: The inner side of the adjusting hole (17) is provided with a thread, and the adjusting screw (15) controls the length of the bottom of the adjusting screw (15) passing through the adjusting hole (17) through the thread.
9. The shock-absorbing wheel for a luggage case according to claim 3, characterized in that: A circle of raised plastic clips (18) is provided on the inner side of the upper wheel fork (4), and the wheel seat fixing nail (5) is provided with a wheel nail fixing groove (19). The inner diameter of the plastic clip (18) is smaller than the bottom diameter of the wheel seat fixing nail (5).
10. The shock-absorbing wheel for a luggage case according to claim 1, characterized in that: The wheel (3) has two pieces, and the two pieces of the wheel (3) are fixed by a wheel fixing nail (6) passing through the lower wheel fork (9).