Shock-absorbing quick-release wheel for luggage

Abstract

The utility model discloses a case shock absorption quick release wheel, quick release wheel subassembly, support axle and wheel casing, quick release wheel subassembly, including wheel body, connecting piece, inner sleeve, baffle, spring, be equipped with the slideway in the connecting piece, the one end of inner sleeve inserted connecting piece is equipped with limit head, the slideway is equipped with the first step, inner sleeve and baffle threaded connection, and the spring is equipped with the first step. The spring is connected to the outer side of the connecting piece in a sleeving mode and connected with the baffle and a second step arranged on the connecting piece in an abutting mode. A non-circular through hole and a mounting assembly are arranged in the wheel shell; the supporting shaft comprises an anti-rotating part, a blocking part and a rotating part, the anti-rotating part is inserted into the non-circular through hole, the upper end face of the blocking part abuts against the wheel shell, and the lower end face of the blocking part abuts against the baffle. Friction between the spring and the supporting shaft is reduced, abrasion of the supporting shaft to the wheel shell (the wheel shell is a plastic part) is reduced, and the service life of the wheel shell and the spring is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of casters, and in particular to a shock-absorbing quick-release caster for bags and luggage. Background Technology

[0002] In existing bag shock-absorbing wheels, the spring is directly fitted onto the support shaft, and the spring and support shaft are fixed together by rivets, forming a single unit. Under stress, both the spring and support shaft experience severe wear, reducing their lifespan. Furthermore, existing quick-release wheels cannot have a spring fitted onto the support shaft, nor can bearings be added. To achieve shock absorption and flexible rotation, existing quick-release wheels would require the spring to be directly fitted onto the support shaft, and a bearing to be added at the connection between the support shaft and the wheel housing; however, this would compromise the quick-release function. Utility Model Content

[0003] In view of the shortcomings of existing technology, the purpose of this utility model is to provide a quick-release wheel for bag shock absorption.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a quick-release wheel for bag shock absorption, comprising: a quick-release wheel assembly, a support shaft, and a wheel housing. The quick-release wheel assembly includes a wheel body, a connector rotatably connected to the wheel body, an inner sleeve fitted onto the connector, a baffle, and a spring. The connector has a slide rail for the inner sleeve to slide. One end of the inner sleeve inserted into the connector has a limiting head. The slide rail has a first step to prevent the limiting head from sliding out of the slide rail. One end of the inner sleeve extending out of the connector is threadedly connected to the baffle. The spring is fitted onto the outside of the connector and abuts against the second step provided by the baffle and the connector, respectively.

[0005] The wheel housing is provided with a non-circular through hole and a mounting assembly for detachably connecting the support shaft to the wheel housing;

[0006] The support shaft, used to connect the quick-release wheel assembly and the wheel housing, includes an anti-rotation part with a non-circular cross-section, a blocking part with a cross-sectional area larger than that of the non-circular through hole, and a rotating part rotatably connected to the inner sleeve. The anti-rotation part is inserted into the non-circular through hole, the upper end face of the blocking part abuts against the wheel housing, and its lower end face abuts against the baffle.

[0007] Furthermore, it also includes a cavity, into which the anti-rotation part extends from the non-circular through hole and is inserted.

[0008] Furthermore, the mounting assembly includes a positioning element, a linkage element, and a push button. The wheel housing has a first sliding groove for the positioning element to slide in and a second sliding groove for accommodating the linkage element. The first sliding groove communicates with a cavity, and the positioning element can slide in the first sliding groove and extend into the cavity. The wheel housing has a limiting plate to prevent the positioning element from coming out of the first sliding groove. The anti-rotation part has a positioning area that cooperates with the positioning element. When the positioning element and the positioning area cooperate with each other, the positioning element prevents the anti-rotation part from coming out of the non-circular through hole into which it is inserted. The linkage element is located in the second sliding groove and can slide in the second sliding groove. The linkage element is connected to the positioning element and is also connected to the push button. The bottom of the second sliding groove has a strip-shaped hole for the push button and the linkage element to slide at their connection.

[0009] Furthermore, the linkage component is engaged with the positioning component, and the linkage component is also engaged with the push button.

[0010] Furthermore, the positioning area is a slot formed by the inward recess of the anti-rotation part, and the positioning member can be inserted into the slot.

[0011] Furthermore, a smooth sleeve is provided between the connector and the spring, and the sleeve is fitted onto the connector.

[0012] Furthermore, the inner sleeve is provided with a circular blind hole for the insertion of the rotating part, and the rotating part is rotatably connected to the inner sleeve through the circular blind hole.

[0013] Furthermore, the baffle is provided with a circular through hole through which the rotating part passes.

[0014] Furthermore, the cross-section of the rotating part is circular.

[0015] The beneficial effects of this utility model are as follows: By adding an inner sleeve to the original support shaft, the spring is fixed between the inner sleeve and the baffle. This fixes the spring in place, resulting in better shock absorption. The spring does not move with the support shaft, and there is no friction between the spring and the support shaft, increasing elasticity and service life. The overall enlargement of the spring increases its load-bearing capacity and also facilitates installation. The exposed spring allows consumers to directly see that the product has a shock-absorbing function.

[0016] The support shaft is positioned by a non-circular anti-rotation part at one end that engages with a corresponding non-circular through hole in the wheel housing. This ensures a tight connection between the support shaft and the wheel housing, preventing rotation and solving the problem of wobbling between them. It also reduces wear on the wheel housing (which is made of plastic) and extends its service life. Attached Figure Description

[0017] Figure 1 This is one of the structural schematic diagrams of this utility model;

[0018] Figure 2 This is the second structural schematic diagram of the present invention;

[0019] Figure 3 This is an exploded view of the structure of this utility model;

[0020] Figure 4 This is a cross-sectional view of the present invention;

[0021] Figure 5 This is one of the structural schematic diagrams of a wheel housing;

[0022] Figure 6 This is the second schematic diagram of the wheel housing structure;

[0023] Figure 7 This is a schematic diagram of the supporting shaft structure;

[0024] Figure 8 This is a structural diagram of the installed components;

[0025] Figure 9 This is one of the structural schematic diagrams of the connector;

[0026] Figure 10 This is the second structural schematic diagram of the connector. Detailed Implementation

[0027] like Figures 1-10 As shown, a quick-release wheel for shock absorption in luggage includes: a quick-release wheel assembly, a support shaft 11, and a wheel housing 12. The quick-release wheel assembly includes a wheel body 1, a connector 2 rotatably connected to the wheel body 1, an inner sleeve 3 sleeved on the connector 2, a baffle 4, and a spring 5. The connector 2 has a slide rail 6 for the inner sleeve 3 to slide. One end of the inner sleeve 3 inserted into the connector 2 has a limiting head 7. The slide rail 6 has a first step 8 to prevent the limiting head 7 from sliding out of the slide rail 6. One end of the inner sleeve 3 extending out of the connector 2 is threadedly connected to the baffle 4. The spring 5 is sleeved on the outside of the connector 2 and abuts against the baffle 4 and the second step 9 provided on the connector 2, respectively.

[0028] The wheel housing 12 is provided with a non-circular through hole 10 and a mounting assembly for detachably connecting the support shaft 11 to the wheel housing 12;

[0029] The support shaft 11, used to connect the quick-release wheel assembly and the wheel housing 12, includes an anti-rotation part 13 with a non-circular cross-section, a blocking part 14 with a cross-sectional area larger than that of the non-circular through hole 10, and a rotating part 15 rotatably connected to the inner sleeve 3. The anti-rotation part 13 is inserted into the non-circular through hole 10, the upper end face of the blocking part 14 abuts against the wheel housing 12, and its lower end face abuts against the baffle 4.

[0030] Specifically, it also includes a cavity 16, into which the anti-rotation part 13 extends from the non-circular through hole 10 and is inserted.

[0031] Specifically, the mounting assembly includes a positioning element 17, a linkage element 18, and a push button 19. The wheel housing 12 has a first sliding groove 20 for the positioning element 17 to slide in, and a second sliding groove 21 to accommodate the linkage element 18. The first sliding groove 20 communicates with the cavity 16. The positioning element 17 can slide in the first sliding groove 20 and extend into the cavity 16. The wheel housing 12 has a limiting plate 22 to prevent the positioning element 17 from dislodging from the first sliding groove 20. The anti-rotation part 13 is provided with a limit plate 22 that connects to the first sliding groove 20. The positioning area 23 is engaged with the positioning member 17. When the positioning member 17 and the positioning area 23 are engaged, the positioning member 17 prevents the anti-rotation part 13 from disengaging from the non-circular through hole 10 into which it is inserted. The linkage member 18 is disposed in the second slide groove 21 and can slide in the second slide groove 21. The linkage member 18 is connected to the positioning member 17 and is also connected to the push button 19. The bottom of the second slide groove 21 is provided with a strip-shaped hole 24 for the push button 19 and the linkage member 18 to slide at the connection point.

[0032] Specifically, the linkage 18 is engaged with the positioning member 17, and the linkage 18 is also engaged with the push button 19.

[0033] Specifically, the positioning area 23 is a slot formed by the inward recess of the anti-rotation part 13, and the positioning member 17 can be inserted into the slot.

[0034] Specifically, a smooth sleeve 25 is provided between the connector 2 and the spring 5, and the sleeve 25 is fitted onto the connector 2.

[0035] Specifically, the inner sleeve 3 is provided with a circular blind hole 26 for the insertion of the rotating part 15, and the rotating part 15 is rotatably connected to the inner sleeve 3 through the circular blind hole 26.

[0036] Specifically, the baffle 4 is provided with a circular through hole 27 through which the rotating part 15 passes.

[0037] Specifically, the cross-section of the rotating part 15 is circular.

[0038] In implementation, an inner sleeve 3 is added outside the original support shaft 11, and the spring 5 is fixed between the inner sleeve 3 and the baffle 4. This fixes the spring 5 in place, resulting in better shock absorption. The spring 5 does not move with the support shaft 11, and there is no friction between the spring 5 and the support shaft 11, increasing elasticity and service life. The overall enlargement of the spring 5 increases its load-bearing capacity and also facilitates installation. The exposed spring 5 allows consumers to directly see the product's shock-absorbing function.

[0039] In implementation, the support shaft 11 is positioned and treated. One end of the support shaft 11 is provided with a non-circular anti-rotation part 13 that cooperates with the corresponding non-circular through hole 10 in the wheel housing 12. In this way, the support shaft 11 and the wheel housing 12 are tightly connected and cannot rotate, which solves the problem of swaying and shaking between the support shaft 11 and the wheel housing 12, reduces the wear on the wheel housing 12 (the wheel housing 12 is a plastic part), and extends the service life of the wheel housing 12.

[0040] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Simple modifications and substitutions made by those skilled in the art without departing from the spirit and scope of this utility model are within its protection scope.

Claims

1. A type of quick-release shock-absorbing wheel for bags, characterized in that, Includes: quick-release wheel assembly, support axle, and wheel housing. The quick-release wheel assembly includes a wheel body, a connector rotatably connected to the wheel body, an inner sleeve fitted onto the connector, a baffle, and a spring. The connector has a slide rail for the inner sleeve to slide in. One end of the inner sleeve inserted into the connector has a limiting head. The slide rail has a first step to prevent the limiting head from sliding out of the slide rail. One end of the inner sleeve extending out of the connector is threadedly connected to the baffle. The spring is fitted onto the outside of the connector and abuts against the second step provided by the baffle and the connector, respectively. The wheel housing is provided with a non-circular through hole and a mounting assembly for detachably connecting the support shaft to the wheel housing; The support shaft, used to connect the quick-release wheel assembly and the wheel housing, includes an anti-rotation part with a non-circular cross-section, a blocking part with a cross-sectional area larger than that of the non-circular through hole, and a rotating part rotatably connected to the inner sleeve. The anti-rotation part is inserted into the non-circular through hole, the upper end face of the blocking part abuts against the wheel housing, and its lower end face abuts against the baffle.

2. The quick-release shock-absorbing wheel for bags as described in claim 1, characterized in that, It also includes a cavity, and the anti-rotation part extends from the non-circular through hole and is inserted into the cavity.

3. The quick-release shock-absorbing wheel for luggage as described in claim 2, characterized in that, The mounting assembly includes a positioning element, a linkage element, and a push button. The wheel housing has a first sliding groove for the positioning element to slide in and a second sliding groove for accommodating the linkage element. The first sliding groove communicates with a cavity. The positioning element can slide in the first sliding groove and extend into the cavity. The wheel housing has a limiting plate to prevent the positioning element from coming out of the first sliding groove. The anti-rotation part has a positioning area that cooperates with the positioning element. When the positioning element and the positioning area cooperate with each other, the positioning element prevents the anti-rotation part from coming out of the non-circular through hole into which it is inserted. The linkage element is located in the second sliding groove and can slide in the second sliding groove. The linkage element is connected to the positioning element and is also connected to the push button. The bottom of the second sliding groove has a strip-shaped hole for the push button and the linkage element to slide at their connection.

4. A quick-release wheel for shock absorption in luggage as described in claim 3, characterized in that, The linkage component is engaged with the positioning component, and the linkage component is also engaged with the push button.

5. A quick-release wheel for shock absorption in luggage as described in claim 3, characterized in that, The positioning area is a slot formed by the inward recess of the anti-rotation part, and the positioning member can be inserted into the slot.

6. A quick-release shock-absorbing wheel for luggage as described in claim 1, characterized in that, A smooth sleeve is provided between the connector and the spring, and the sleeve is fitted onto the connector.

7. A quick-release shock-absorbing wheel for bags as described in claim 1, characterized in that, The inner sleeve has a circular blind hole for inserting the rotating part, and the rotating part is rotatably connected to the inner sleeve through the circular blind hole.

8. A quick-release shock-absorbing wheel for bags as described in claim 7, characterized in that, The baffle is provided with a circular through hole through which the rotating part passes.

9. A quick-release shock-absorbing wheel for bags as described in claim 8, characterized in that, The cross-section of the rotating part is circular.

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