A detachable suitcase bottom wheel set

Abstract

This utility model discloses a detachable wheel assembly for a rolling suitcase, relating to the field of rolling suitcase technology. It includes a suitcase body, with multiple positioning frames fixedly connected to the bottom of the body. Each positioning frame contains a mounting plate, and wheels are fixedly mounted on the bottom of the mounting plate. A mounting assembly is disposed on the surface of the positioning frames, and a protective assembly is disposed on the surface of the suitcase body. This utility model, through its mounting assembly, facilitates easy disassembly and assembly of the wheels, effectively improving the efficiency of wheel assembly and disassembly. The protective and locking components effectively protect the wheels, extending their service life. Furthermore, the position of the protective assembly can be locked to prevent it from affecting the normal use of the wheels, thus significantly improving overall practicality.

Description

Technical Field

[0001] This utility model relates to the field of trolley case technology, specifically a detachable trolley case bottom wheel assembly. Background Technology

[0002] A rolling suitcase is a type of luggage with a pull handle and wheels. It is widely used because of its convenience. Rolling suitcases are also divided into single-tube and double-tube pull handles, depending on the pull handle itself. The tubes of the pull handle are also divided into square tubes and round tubes to facilitate dragging while walking and greatly reduce the burden. When using a rolling suitcase, it is necessary to have a detachable bottom wheel assembly.

[0003] In existing technology, wheelsets still require the use of bolts and other tools for disassembly and assembly, which reduces the efficiency of disassembly and assembly, increases the burden on users, and if one bolt falls off, it will affect the normal installation of the wheelset, reducing the overall practicality of the device. Moreover, although existing technology can protect the wheelset with a baffle when it is not in use, part of the wheelset is still exposed to the outside, which affects the protective effect of the baffle, resulting in low protective performance of the baffle and reducing the service life of the wheelset.

[0004] Comparing this invention with patent application number CN221997132U, the present invention relates to the field of trolley case technology and discloses a detachable trolley case bottom wheel assembly, comprising two sets of rollers, with U-shaped rods fixedly connected to the surface of the rollers. This detachable trolley case bottom wheel assembly, through the provision of a telescopic mechanism, allows the rollers to be retracted into a baffle when not in use. The retracted rollers facilitate storage and carrying, and also better protect the wheels from external damage.

[0005] The above solution can protect the wheelset with baffles, but some wheelset parts are still exposed to the outside, resulting in the baffles having a relatively poor protective effect. Furthermore, when installing the wheelset, bolts and other tools are still required to connect the connecting plate to the housing, which reduces the efficiency of disassembling and assembling the wheelset and decreases the overall practicality and convenience of the device.

[0006] Based on this, a detachable bottom wheel assembly for a suitcase is now provided, which can eliminate the drawbacks of existing devices. Utility Model Content

[0007] The purpose of this invention is to provide a detachable wheel assembly for the bottom of a suitcase to solve the problems in the background art.

[0008] To achieve the above objectives, this utility model provides the following technical solution:

[0009] A detachable trolley case bottom wheel assembly includes a case body, a plurality of positioning frames are fixedly connected to the bottom of the case body, a mounting plate is inserted into each of the plurality of positioning frames, and a wheel body is fixedly mounted on the bottom of the mounting plate.

[0010] The mounting components are set on the surface of the positioning frame and are used for assembling and disassembling the wheel body;

[0011] Protective components are installed on the surface of the housing and are used to protect the wheels;

[0012] A locking component is provided on the surface of the enclosure and is used to lock the position of the protective components.

[0013] Based on the above technical solutions, this utility model also provides the following optional technical solutions:

[0014] In one alternative embodiment: the mounting assembly includes a fixed plate fixedly connected to the surface of the positioning frame, slide rods symmetrically mounted on the inner wall of the fixed plate, a sliding plate slidably connected to the outer wall of every two slide rods, a return spring sleeved on the outside of the slide rods, the return spring abutting between the sliding plate and the fixed plate, a pull plate fixedly connected to one side of the sliding plate via a side plate, and insert rods symmetrically mounted on the other side of the sliding plate, and slots for the insert rods to move on the surfaces of both the positioning frame and the mounting plate.

[0015] In one alternative: the protective assembly includes multiple connecting frames fixedly connected to the surface of the housing, a fixing rod fixedly connected to the inner wall of the connecting frame, a spiral spring fixedly connected to the outer wall of the fixing rod, a connecting sleeve fixedly connected to the other end of the spiral spring, and a protective frame fixedly connected to the surface of the connecting sleeve through an outer plate.

[0016] In one alternative embodiment: the locking assembly includes multiple fixed frames fixedly connected to the surface of the housing, each of the multiple protective frames having an insert plate fixedly connected to its surface, a locking cylinder fixedly connected to the surface of the fixed frame, a locking rod slidably inserted into the locking cylinder, one end of the locking rod extending to the outside of the locking cylinder and fixedly connected to a pull ring, an abutment plate fixedly connected to the outer wall of the locking rod, an abutment spring sleeved on the outside of the locking rod, the abutment spring abutting between the abutment plate and the locking cylinder, and locking grooves for the locking rod to move are provided on the contact surface between the locking cylinder and the fixed frame and the surface of the insert plate.

[0017] In one alternative: multiple protective frames are fixedly connected to the surfaces of multiple protective frames, and the surfaces of multiple protective frames are provided with anti-slip grooves.

[0018] In one alternative: rubber protective pads are adhered to the surfaces of multiple protective frames.

[0019] In one alternative: multiple protective frames are made of aluminum alloy.

[0020] In one alternative: multiple return springs, spiral springs, and contact springs are all made of stainless steel.

[0021] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0022] 1. This utility model, through the setting of the installation components, makes it easy for users to disassemble and assemble the wheel without the need for bolts or other tools, effectively improving the efficiency of wheel disassembly and assembly, reducing the burden on users, and enhancing the overall practicality and convenience of the device.

[0023] 2. By setting up protective components, this utility model can provide comprehensive and effective protection for the wheel body when it is not in use, thereby preventing the wheel body from being exposed to the external environment and causing damage, and effectively extending the service life of the wheel body.

[0024] 3. By setting the locking component, this utility model can effectively lock the position of the protective component, thereby preventing the protective component from closing during the use of the wheel and affecting the normal use of the wheel. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0026] Figure 2 This is a schematic diagram of the structure of the wheel body after disassembly in this utility model.

[0027] Figure 3 This is a schematic diagram of the structure of the protective frame after it is opened in this utility model;

[0028] Figure 4 for Figure 2 Enlarged structural diagram of region A in the middle;

[0029] Figure 5 for Figure 2 A magnified structural diagram of region B in the middle;

[0030] Figure 6 for Figure 3 A magnified structural diagram of region C in the middle.

[0031] Figure label annotations:

[0032] 1. Housing; 2. Wheels; 3. Protective frame; 4. Rubber protective pad; 5. Paddle; 6. Positioning frame; 7. Mounting plate; 8. Fixing plate; 9. Slide rod; 10. Slide plate; 11. Return spring; 12. Side plate; 13. Insert rod; 14. Connecting frame; 15. Fixing rod; 16. Spiral spring; 17. Connecting sleeve; 18. Outer plate; 19. Insert plate; 20. Fixing frame; 21. Locking cylinder; 22. Locking rod; 23. Abutment plate; 24. Abutment spring. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.

[0034] In one embodiment, such as Figures 1-6 As shown, a detachable trolley case bottom wheel assembly includes a case body 1, a plurality of positioning frames 6 are fixedly connected to the bottom of the case body 1, a mounting plate 7 is inserted into each of the plurality of positioning frames 6, and a wheel body 2 is fixedly mounted on the bottom of the mounting plate 7.

[0035] The mounting components are set on the surface of the positioning frame 6 and are used for assembling and disassembling the wheel body 2;

[0036] A protective assembly is installed on the surface of the housing 1 and is used to protect the wheels 2;

[0037] A locking component is disposed on the surface of housing 1 and is used to lock the position of the protective component.

[0038] In this embodiment, when the wheel 2 needs to be installed, simply insert the mounting plate 7 into the positioning frame 6, and then fix the mounting plate 7 and the positioning frame 6 together using the mounting components. At this time, the wheel 2 can be installed, and it is convenient for the user to disassemble and replace the wheel 2 without using bolts or other tools, which effectively improves the efficiency of disassembly and assembly of the wheel 2. When the wheel 2 is not in use, the protective components can be used to provide convenient and effective all-round protection for the wheel 2, thereby preventing the wheel 2 from being exposed to the external environment for a long time, which may cause damage to the wheel 2 and effectively extend the service life of the wheel 2. The locking components allow the user to lock the position of the protective components, so that the protective components can always be in the open state, thereby preventing the protective components from affecting the normal use of the wheel 2 and further improving the overall practicality and convenience of the device.

[0039] In one embodiment, such as Figure 2 and Figure 4As shown, the mounting assembly includes a fixing plate 8 fixedly connected to the surface of the positioning frame 6. Slide rods 9 are symmetrically mounted on the inner wall of the fixing plate 8. A sliding plate 10 is slidably connected to the outer wall of every two slide rods 9. A return spring 11 is sleeved on the outside of each slide rod 9, and the return spring 11 abuts against the sliding plate 10 and the fixing plate 8. A pull plate is fixedly connected to one side of the sliding plate 10 via a side plate 12. Insert rods 13 are symmetrically mounted on the other side of the sliding plate 10. Slots for the insert rods 13 are provided on the surfaces of both the positioning frame 6 and the mounting plate 7. When the wheel 2 needs to be installed, simply pull the pull plate, which will then move the side plate 12. The side plate 12 moves, and the slide plate 10 moves synchronously on the outer wall of the slide bar 9. During the movement of the slide plate 10, the return spring 11 is squeezed. The slide plate 10 also moves synchronously with the insertion rod 13. At this time, the mounting plate 7 is inserted into the positioning frame 6, and then the pull plate is released. At this time, the return spring 11 is reset, and the slide plate 10 and the insertion rod 13 move synchronously. When the insertion rod 13 is inserted into the slot on the surface of the mounting plate 7, the mounting plate 7 and the positioning frame 6 can be fixed. At this time, the wheel body 2 can be installed, and it is also convenient for the user to disassemble and replace the wheel body 2.

[0040] In one embodiment, such as Figure 2 and Figure 5 As shown, the protective assembly includes multiple connecting frames 14 fixedly connected to the surface of the housing 1. A fixing rod 15 is fixedly connected to the inner wall of each connecting frame 14, and a spiral spring 16 is fixedly connected to the outer wall of each fixing rod 15. A connecting sleeve 17 is fixedly connected to the other end of each spiral spring 16. A protective frame 3 is fixedly connected to the surface of the connecting sleeve 17 via an outer plate 18. When the wheel 2 needs to be used, simply open the protective frame 3. The protective frame 3 will then move the outer plate 18 synchronously, and the outer plate 18 will then rotate the connecting sleeve 17 synchronously. During the rotation of the connecting sleeve 17, the spiral spring 16 will be subjected to pressure. 6. Stretch the protective frame 3 until it is fully open, then use the locking component to fix the position of the protective frame 3. At this point, the wheel 2 can be used normally. When the wheel 2 is no longer needed, simply use the locking component to cancel the fixing effect of the protective frame 3. At this point, the spiral spring 16 returns to its original position, causing the connecting sleeve 17 to rotate synchronously. The connecting sleeve 17 then causes the outer plate 18 and the protective frame 3 to move synchronously. When the protective frame 3 completely covers the outside of the wheel 2, the wheel 2 can be effectively protected by the protective frame 3, thereby effectively extending the service life of the wheel 2.

[0041] In one embodiment, such as Figure 3 and Figure 6As shown, the locking assembly includes multiple fixed frames 20 fixedly connected to the surface of the housing 1. Multiple protective frames 3 have insert plates 19 fixedly connected to their surfaces. A locking cylinder 21 is fixedly connected to the surface of each fixed frame 20. A locking rod 22 is slidably inserted into the locking cylinder 21. One end of the locking rod 22 extends to the outside of the locking cylinder 21 and is fixedly connected to a pull ring. An abutment plate 23 is fixedly connected to the outer wall of the locking rod 22. An abutment spring 24 is sleeved on the outside of the locking rod 22, abutting between the abutment plate 23 and the locking cylinder 21. Locking grooves for the locking rod 22 to move are provided on the contact surfaces of the locking cylinder 21 and the fixed frames 20, as well as on the surface of the insert plates 19. When needed... To lock the position of the protective frame 3, simply pull the pull ring. The pull ring will move the locking rod 22 and the abutment plate 23 simultaneously. During the movement of the abutment plate 23, the abutment spring 24 will be compressed. Then, open the protective frame 3. The protective frame 3 will move the insert plate 19 simultaneously. When the insert plate 19 is inserted into the fixed frame 20, release the pull ring. The abutment spring 24 will reset and move the abutment plate 23 and the locking rod 22 simultaneously. When the locking rod 22 is inserted into the locking groove on the surface of the insert plate 19, the insert plate 19 and the fixed frame 20 will be fixed together, thus locking the position of the protective frame 3.

[0042] In one embodiment, such as Figures 1-3 As shown, multiple protective frames 3 are fixedly connected to a lever 5 on their surfaces, and the surfaces of multiple levers 5 are provided with anti-slip grooves. The levers 5 make it easy for users to open the protective frames 3, and the anti-slip grooves prevent users from slipping their hands.

[0043] In one embodiment, such as Figures 1-3 As shown, rubber protective pads 4 are adhered to the surface of multiple protective frames 3. The rubber protective pads 4 can effectively buffer the impact of objects in the external environment to a certain extent, thereby further improving the protective effect of the protective frames 3 on the wheel body 2.

[0044] In one embodiment, such as Figures 1-3 As shown, the protective frames 3 are all made of aluminum alloy. The aluminum alloy protective frames 3 have good strength, which can further improve the protective effect of the protective frames 3 on the wheel body 2, and at the same time extend the service life of the protective frames 3.

[0045] In one embodiment, such as Figures 1-6 As shown, the return springs 11, spiral springs 16, and contact springs 24 are all made of stainless steel. Stainless steel has good corrosion resistance, so the return springs 11, spiral springs 16, and contact springs 24 also have good corrosion resistance, which can effectively extend the service life of the return springs 11, spiral springs 16, and contact springs 24.

[0046] The above embodiment discloses a detachable wheel assembly for a suitcase. When the wheel 2 needs to be installed, simply insert the mounting plate 7 into the positioning frame 6, and then fix the mounting plate 7 to the positioning frame 6 through the cooperation between the pull plate and the insertion rod 13. At this time, the wheel 2 can be installed, and it is convenient for the user to disassemble and replace the wheel 2 without the need for bolts or other tools, which effectively improves the efficiency of disassembly and assembly of the wheel 2. When the wheel 2 is not in use, the protective frame 3 can be used to conveniently and effectively protect the wheel 2 from all-round protection, thereby preventing the wheel 2 from being exposed to the external environment for a long time and causing damage to the wheel 2, thus effectively extending the service life of the wheel 2. The pull ring and locking rod 22 make it easy for the user to lock the position of the protective frame 3, so that the protective frame 3 can always be in the open state, thereby preventing the protective frame 3 from affecting the normal use of the wheel 2, further improving the overall practicality and convenience of the device.

[0047] The above are merely specific embodiments of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A detachable wheel set for the bottom of a suitcase, comprising a suitcase body (1), characterized in that, The bottom of the housing (1) is fixedly connected to multiple positioning frames (6), and each of the multiple positioning frames (6) has a mounting plate (7) inserted into it. The bottom of the mounting plate (7) is fixedly mounted with a wheel (2); it also includes: The mounting components are set on the surface of the positioning frame (6) and are used for assembling and disassembling the wheel body (2); A protective assembly is disposed on the surface of the housing (1) and is used to protect the wheels (2); A locking component is disposed on the surface of the housing (1) and is used to lock the position of the protective component.

2. The detachable rolling suitcase bottom wheel set according to claim 1, characterized in that, The mounting assembly includes a fixing plate (8) fixedly connected to the surface of the positioning frame (6). Slide rods (9) are symmetrically installed on the inner wall of the fixing plate (8). A sliding plate (10) is slidably connected to the outer wall of each pair of slide rods (9). A return spring (11) is sleeved on the outside of the slide rod (9). The return spring (11) abuts against the sliding plate (10) and the fixing plate (8). A pull plate is fixedly connected to one side of the sliding plate (10) through a side plate (12). Insert rods (13) are symmetrically installed on the other side of the sliding plate (10). The surfaces of the positioning frame (6) and the mounting plate (7) are provided with slots for the insertion rods (13) to move.

3. The detachable rolling suitcase bottom wheel set according to claim 2, characterized in that, The protective assembly includes multiple connecting frames (14) fixedly connected to the surface of the housing (1). A fixing rod (15) is fixedly connected to the inner wall of the connecting frame (14). A spiral spring (16) is fixedly connected to the outer wall of the fixing rod (15). A connecting sleeve (17) is fixedly connected to the other end of the spiral spring (16). A protective frame (3) is fixedly connected to the surface of the connecting sleeve (17) through an outer plate (18).

4. The detachable rolling suitcase bottom wheel set according to claim 3, characterized in that, The locking assembly includes multiple fixed frames (20) fixedly connected to the surface of the housing (1), and multiple protective frames (3) are fixedly connected to the surface of each of them. A locking cylinder (21) is fixedly connected to the surface of the fixed frame (20). A locking rod (22) is slidably inserted into the locking cylinder (21). One end of the locking rod (22) extends to the outside of the locking cylinder (21) and is fixedly connected to a pull ring. An abutment plate (23) is fixedly connected to the outer wall of the locking rod (22). An abutment spring (24) is sleeved on the outside of the locking rod (22). The abutment spring (24) abuts between the abutment plate (23) and the locking cylinder (21). Locking grooves for the locking rod (22) to move are opened on the contact surface of the locking cylinder (21) and the fixed frame (20) and the surface of the insert plate (19).

5. The detachable rolling suitcase bottom wheel set according to claim 3, characterized in that, Each of the multiple protective frames (3) has a paddle (5) fixedly connected to its surface, and each of the multiple paddles (5) has an anti-slip groove on its surface.

6. The detachable rolling suitcase bottom wheel set according to claim 3, characterized in that, Rubber protective pads (4) are adhered to the surface of each of the multiple protective frames (3).

7. The detachable rolling suitcase bottom wheel set according to claim 3, characterized in that, All of the protective frames (3) are made of aluminum alloy.

8. The detachable rolling suitcase bottom wheel set according to claim 4, characterized in that, The reset springs (11), spiral springs (16) and contact springs (24) are all made of stainless steel.

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