Detachable roller assembly suitable for luggage case

Abstract

The utility model relates to the technical field of idler wheels, in particular to a detachable idler wheel assembly suitable for a luggage case, which comprises a first combination seat, a second combination seat and an idler wheel, and a connecting mechanism for mutually connecting the first combination seat and the second combination seat is arranged between the first combination seat and the second combination seat. The connecting mechanism comprises a connecting shaft arranged between the first combination seat and the second combination seat in a penetrating mode, a limiting plate connected with the connecting shaft in a clamping mode and a shifting block connected with the limiting plate, a first reset spring is arranged on the limiting plate, a mounting cavity for containing the limiting plate and the shifting block is formed in the first combination seat, and the limiting plate can move in the mounting cavity under driving of the shifting block; the connecting mechanism has the advantages that the overall structure of the connecting mechanism is simplified, the assembly efficiency is improved, and the production cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of rollers, and in particular to a detachable roller assembly suitable for a luggage case. Background Art

[0002] Suitcases are commonly used travel items. In order to facilitate carrying and save physical strength, rollers are set on the suitcases. The suitcases are moved on the ground by pulling rods. Long-term use of the suitcases will cause the rollers to wear and affect the normal use of the suitcases. Therefore, the rollers need to be disassembled. Patent application number CN201620377163.6 discloses a quickly assembled roller, including a first combination seat installed at the bottom of the suitcase, a second combination seat detachably connected to the first combination seat, and a roller installed at the bottom of the second combination seat. The upper end of the first combination seat has a matching wall surface that matches the bottom of the suitcase. A connecting mechanism that connects them to each other is provided between the first combination seat and the second combination seat. The connecting mechanism includes a locking pin provided at the top of the second combination seat and a clamping assembly provided at the bottom of the first combination seat for locking the locking pin. The locking pin is cylindrical and a locking plate is provided at the top of the locking pin. The clamping assembly includes a circular hole provided at the bottom of the first combination seat that matches the locking pin, a locking plate provided in the first combination seat for clamping The cam is secured to the rear of the two locking members and is adapted to engage the locking member when the cam is engaged with the locking member, thereby enabling the cam to engage with the locking member when the cam is engaged.

[0003] The above-mentioned quick-assembly roller has the following disadvantages during actual use: 1. The connection mechanism connecting the first and second coupling seats is complex in structure and has many parts, which reduces assembly efficiency and increases production costs; 2. When replacing the roller, only the entire second coupling seat can be removed, and only one of the rollers cannot be replaced, which increases the replacement cost. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a detachable roller assembly suitable for a suitcase in view of the above-mentioned deficiencies in the prior art, thereby simplifying the overall structure of the connecting mechanism, improving assembly efficiency and reducing production costs.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a detachable roller assembly suitable for a suitcase, comprising a first combination seat mounted on the bottom of the suitcase, a second combination seat detachably connected to the first combination seat, and rollers placed on both sides of the second combination seat, a connecting mechanism for connecting each other is provided between the first combination seat and the second combination seat, the connecting mechanism comprises a connecting shaft passing between the first combination seat and the second combination seat, a limiting plate clamped with the connecting shaft, and a shift block connected to the limiting plate, the connecting shaft comprises a connecting shaft body, an upper limit ring groove provided at the upper end of the connecting shaft body, and one end of the limiting plate in the horizontal direction is provided with a first clamping The cam is secured to the upper edge of the first support frame and is adapted to engage with the first end of the linking member when the cam is engaged to the first support frame.

[0006] The utility model with the above-mentioned characteristics: the limit plate and the shift block in the connecting mechanism have simple structures, and the connection method between the two and the connecting shaft and the spring is simple, which simplifies the overall structure of the connecting mechanism, improves assembly efficiency and reduces production costs; when disassembling the roller assembly, one hand shifts the shift block, and the shift block drives the limit plate to compress the spring. The movement of the limit plate causes the connecting shaft to disengage, and the other hand removes the roller assembly for disassembly, thereby realizing quick disassembly of the roller assembly on the suitcase, which is convenient for replacement and maintenance.

[0007] A further arrangement of the present invention is: a roller shaft is threadedly connected to the roller, one end of the roller shaft extends into the second combining seat, and a clamping ring groove is provided on the end. A quick-release part detachably connected to the roller shaft is provided in the second combining seat, and the quick-release part includes a U-shaped frame connecting the two roller shafts and a pressing rod connecting the U-shaped frame. Second clamping holes are provided on the fork arms on both sides of the U-shaped frame. After one end of the roller shaft passes through the second clamping hole, the clamping ring groove is clamped with the second clamping hole. Second connecting columns are provided at the ends of the fork arms on both sides of the U-shaped frame. A second return spring is sleeved on the second connecting column. A chamber for installing the quick-release part is provided in the second combining seat, and the pressing rod extends outward from the chamber to the outside of the second combining seat, and the end of the second return spring is against the bottom of the chamber.

[0008] The utility model with the above-mentioned features: when only one roller is worn, by pressing the pressing rod, the U-shaped frame compresses the second return spring. At this time, the roller shaft is disengaged from the clamping of the U-shaped frame, and the roller can be removed from the second coupling seat. Only the damaged roller needs to be replaced, thereby reducing maintenance costs.

[0009] A further configuration of the present invention is: the shift block includes a shift block body and a connecting block arranged on the upper end surface of the shift block body, the limit plate and the connecting block are detachably connected by fasteners, a connecting groove is provided at the bottom of the mounting cavity, the connecting block is placed in the connecting groove, the connecting groove is larger than the connecting block, and the connecting block can move in the connecting groove, the lower end surface of the first coupling seat is provided with a shift block groove for accommodating the shift block body, the lower end surface of the shift block body is provided with a boss higher than the shift block groove, and the boss and the lower end surface of the shift block body are provided with a number of evenly distributed strip grooves.

[0010] The utility model with the above-mentioned characteristics: the connection groove is larger than the connection block so that the shift block can be shifted; a boss is provided on the shift block body, and a height difference is formed between the boss and the shift block body. When shifting, the finger can be placed against the boss side for easy operation; strip grooves are provided at the lower ends of the boss and the shift block body to increase the friction between the finger and the shift block.

[0011] A further configuration of the present invention is that: a mounting hole adapted to the end of the connecting shaft is provided on the cover plate, and the cover plate is detachably connected to the mounting cavity via a fastener.

[0012] The utility model with the above features: the cover plate is arranged on the installation cavity to form a closed chamber, which can prevent the components in the installation cavity from falling and has a dust-proof effect.

[0013] The present invention will be described in further detail below with reference to the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 The structure of the embodiment of the utility model is shown in FIG. Figure 1 .

[0015] Figure 2 The structure of the embodiment of the utility model is shown in FIG. Figure 2 .

[0016] Figure 3 This is a schematic diagram of the structure of an embodiment of the utility model after removing the cover plate.

[0017] Figure 4 This is a structural diagram of the connecting mechanism of an embodiment of the utility model.

[0018] Figure 5 This is an exploded view of an embodiment of the present utility model.

[0019] Figure 6It is a cross-sectional view of the second combining seat and the roller according to an embodiment of the present utility model.

[0020] Figure 7 This is a schematic structural diagram of the roller and quick-release parts in an embodiment of the utility model.

[0021] Figure 8 This is a schematic diagram of the structure of the first combination seat of the embodiment of the utility model Figure 1 .

[0022] Figure 9 This is a schematic diagram of the structure of the first combination seat of the embodiment of the utility model Figure 2 . DETAILED DESCRIPTION

[0023] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed. However, as long as they are within the scope of the claims of the present invention, they are protected by patent law.

[0024] like Figure 1-9 The detachable roller assembly for a luggage case shown in the figure comprises a first combining seat 1 mounted on the bottom of the luggage case, a second combining seat 2 detachably connected to the first combining seat 1, and rollers 3 placed on both sides of the second combining seat 2. A connecting mechanism is provided between the first combining seat 1 and the second combining seat 2 to connect them to each other. The connecting mechanism comprises a connecting shaft 4 passing through the first combining seat 1 and the second combining seat 2, a limiting plate 5 engaged with the connecting shaft 4, and a shift block 6 connected to the limiting plate 5. The connecting shaft 4 comprises a connecting shaft body 41 and an upper limit ring groove 42 arranged at the upper end of the connecting shaft body 41. One end of the limiting plate 5 in the horizontal direction is provided with a first clamping hole 51 and the other end is provided with a first connecting column 52. After the upper end of the connecting shaft 4 passes through the first clamping hole 51, the upper limit ring groove 42 is engaged with the first clamping hole 5 1 is clamped, the diameter of the connecting shaft 4 is smaller than the inner diameter of the first clamping hole 51, the first connecting column 52 is sleeved with a first return spring 7, the limit plate 5 is provided with a shift block 6 below one end of the first connecting column 52, and the first combination seat 1 is provided with a mounting cavity 11 for accommodating the limit plate 5 and the shift block 6. The bottom of the mounting cavity 11 is provided with a connecting hole 14 for the connecting shaft to pass through. The end of the first return spring 7 away from the first connecting column 52 is against the cavity wall of the mounting cavity 11, and the shift block 6 passes through the mounting cavity 11 and is placed on the outer circumference of the first combination seat 1. The limit plate 5 can move in the mounting cavity 11 under the drive of the shift block 6. The top of the mounting cavity 11 is open, and a cover plate 8 is provided on it. The cover plate 8 is provided with a mounting hole 81 adapted to the end of the connecting shaft 4, and the cover plate 8 is detachably connected to the mounting cavity 11 by fasteners.

[0025] The shift block 6 includes a shift block body 61 and a connecting block 62 arranged on the upper end surface of the shift block body 61. The limit plate 5 and the connecting block 62 are detachably connected by fasteners. A connecting groove 12 is provided at the bottom of the installation cavity 11. The connecting block 62 is placed in the connecting groove 12. The connecting groove 12 is larger than the connecting block 62. The connecting block 62 can move in the connecting groove 12. The lower end surface of the first combination seat 1 is provided with a shift block groove 13 for accommodating the shift block body 61. The lower end surface of the shift block body 61 is provided with a boss 63 that is higher than the shift block groove 13. The boss 63 and the lower end surface of the shift block body 61 are provided with a number of evenly distributed strip grooves 64.

[0026] The roller 3 is threadedly connected to a roller shaft 9, one end of the roller shaft 9 extends into the second combination seat 2, and a snap ring groove 91 is provided on the end. A quick release part 10 detachably connected to the roller shaft 9 is provided in the second combination seat 2. The quick release part 10 includes a U-shaped frame 101 connecting the two roller shafts 9, a pressing rod 102 connecting the U-shaped frame 101, and a second snap hole 1012 is provided on the fork arms 1011 on both sides of the U-shaped frame 101. After one end of the roller shaft 9 passes through the second snap hole 1012, The snap ring groove 91 is snapped into engagement with the second snap hole 1012. The inner diameter of the second snap hole 1012 is larger than the diameter of the roller shaft 9. The ends of the fork arms 1011 on both sides of the U-shaped frame 101 are provided with second connecting columns 1013. A second return spring 20 is sleeved on the second connecting column 1013. A chamber for installing the quick-release part 10 is provided in the second combining seat 2. The pressing rod 102 extends outward from the chamber to the outside of the second combining seat 2. The end of the second return spring 20 is against the bottom of the chamber.

[0027] When assembling the roller and the second combination seat, press the pressing rod downward, and the roller shaft passes through the second combination seat and the U-shaped frame in sequence. After releasing the pressing rod, the pressing rod returns to its original position under the action of the second return spring. At this time, the clamping ring groove on the roller shaft is clamped with the second clamping hole on the U-shaped frame, completing the assembly of the roller and the second combination seat. Figure 7 This is the state diagram after the rollers are installed. When one of the rollers is damaged and needs to be replaced, just press the pressing rod. When the pressing rod presses the second return spring, the roller shaft disengages from the limit of the U-shaped frame and the roller can be taken out.

[0028] After the second combination seat is equipped with the roller and the connecting shaft, when assembling it with the first combination seat, move the shift block to pass the connecting shaft through the connecting hole and the first clamping hole in sequence, loosen the shift block, and the limit plate moves under the action of the first return spring. The upper limit ring groove on the connecting shaft is clamped and fixed with the first clamping hole, completing the assembly of the second combination seat and the first combination seat. Figure 4 This is the state diagram after assembly is completed. When the entire second combination seat needs to be replaced or disassembled, just move the shift block. At this time, the connecting shaft will be disengaged from the limit plate, and the entire second combination seat can be removed by holding the roller.

Claims

1. A detachable roller assembly for luggage, comprising a first coupling seat mounted on the bottom of the luggage, a second coupling seat detachably connected to the first coupling seat, and rollers disposed on either side of the second coupling seat, wherein a connecting mechanism is provided between the first coupling seat and the second coupling seat to interconnect the first and second coupling seats, and characterized in that: The locking mechanism comprises a first locking plate, a second locking plate, and a second locking plate, wherein the locking plate has a first locking plate and a second locking plate, the second locking plate being secured to the first and second locking plates at a position adjacent the locking plate.

2. The detachable roller assembly for a luggage case according to claim 1, characterized in that: The roller is threadedly connected to a roller shaft, and one end of the roller shaft extends into the second combining seat, and the end is provided with a clamping ring groove. The second combining seat is provided with a quick-release part that is detachably connected to the roller shaft, and the quick-release part includes a U-shaped frame connecting the two roller shafts and a pressing rod connecting the U-shaped frame. Second clamping holes are provided on the fork arms on both sides of the U-shaped frame. After one end of the roller shaft passes through the second clamping hole, the clamping ring groove is clamped with the second clamping hole. Second connecting columns are provided at the ends of the fork arms on both sides of the U-shaped frame. A second return spring is sleeved on the second connecting column. A chamber for installing the quick-release part is provided in the second combining seat, and the pressing rod extends outward from the chamber to the outside of the second combining seat, and the end of the second return spring is against the bottom of the chamber.

3. The detachable roller assembly for a luggage case according to claim 1, characterized in that: The shift block includes a shift block body and a connecting block arranged on the upper end surface of the shift block body, the limit plate and the connecting block are detachably connected by fasteners, a connecting groove is provided at the bottom of the mounting cavity, the connecting block is placed in the connecting groove, the connecting groove is larger than the connecting block, and the connecting block can move in the connecting groove, the lower end surface of the first combination seat is provided with a shift block groove for accommodating the shift block body, the lower end surface of the shift block body is provided with a boss higher than the shift block groove, and the boss and the lower end surface of the shift block body are provided with a number of evenly distributed strip grooves.

4. A detachable roller assembly suitable for a luggage case according to claim 1 or 3, characterized in that: The cover plate is provided with a mounting hole adapted to the end of the connecting shaft, and the cover plate is detachably connected to the mounting cavity via a fastener.

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