Draw-bar box convenient to disassemble

Abstract

The utility model provides a draw-bar box convenient to disassemble, which relates to the field of draw-bar boxes, and comprises a box body, a roller mounting seat and a roller component, one side of the top of the box body is provided with a draw bar, the top of the roller mounting seat is provided with a connecting plate fixedly connected with the bottom of the box body, and the bottom of the roller mounting seat is provided with a first connecting groove; two through movable grooves are symmetrically formed in the inner wall of the first connecting groove, the outer side of the roller mounting base is sleeved with a shifting sleeve, two limiting pins are symmetrically arranged on the inner side of the shifting sleeve, and the two limiting pins penetrate into the first connecting groove from the inner sides of the two movable grooves correspondingly; rollers are mounted at the bottom of the roller frame, and a rotating plate is connected to the top of the roller frame; according to the utility model, the roller of the draw-bar box can be quickly mounted and dismounted, so that the maintenance cost of the roller of the draw-bar box is effectively reduced, and the overall service life of the draw-bar box is further prolonged.

Description

Technical Field

[0001] The utility model belongs to the technical field of trolley cases, in particular to a trolley case which is easy to disassemble. Background Art

[0002] A trolley case is a suitcase with a trolley and wheels, and is widely used because of its convenience.

[0003] The existing trolley cases mostly have an integrated structure between the bottom rollers and the trolley case body. This makes it difficult to replace the rollers after they are damaged due to long-term use, causing the trolley case to be unable to move smoothly during use, thereby causing the trolley case to be scrapped.

[0004] In summary, the present invention provides a trolley case that is easy to disassemble to solve the above problems. Utility Model Content

[0005] In order to solve the above technical problems, the present invention provides a trolley case that is easy to disassemble, which is achieved by the following specific technical means:

[0006] A trolley case that is easy to disassemble, comprising a case body, a roller mounting seat and a roller assembly, a pull rod is provided on one side of the top of the case body, a connecting plate fixedly connected to the bottom of the case body is provided on the top of the roller mounting seat, a first connecting groove is provided at the bottom of the roller mounting seat, two movable grooves penetrating therethrough are symmetrically provided on the inner wall of the first connecting groove, a dial sleeve is provided on the outer side of the roller mounting seat, two limit pins are symmetrically provided on the inner side of the dial sleeve, and the two limit pins are respectively inserted into the first connecting groove from the inner sides of the two movable grooves, and the roller assembly The component includes a roller frame, a roller is installed at the bottom of the roller frame, and a rotating plate is connected to the top of the roller frame. The rotating plate and the roller frame can be fixedly connected or rotatably connected. The number of fixedly connected roller frames is at most two and both are located on the side close to the position of the box pull rod. A first connecting column is provided on the top of the rotating plate, and two fixing grooves are provided on the surface of the first connecting column in a circumferential array. The inner wall of the top side of the fixing groove is inclined, and a penetrating guide groove is provided on the top of the higher end, and a limiting groove is provided on the other end of the top side of the fixing groove.

[0007] Furthermore, the number of the roller mounting seats is four, and the four roller mounting seats are respectively installed at the four corners of the bottom of the box.

[0008] Furthermore, the width of the guide groove and the width of the limiting groove are both equal to the diameter of the limiting pin.

[0009] Furthermore, two sliding grooves are symmetrically provided on the inner side of the first connecting groove, and two sliding blocks are symmetrically provided on the outer side of the roller mounting seat, and the two sliding blocks are respectively inserted into the two sliding grooves.

[0010] Furthermore, a spring is installed above the slider in the slide groove, and two ends of the spring are respectively against the top inner wall of the slide groove and the slider.

[0011] Furthermore, a second connecting groove is provided on the top of the first connecting groove, and two first limiting plates are symmetrically provided on the bottom of the inner wall of the second connecting groove.

[0012] Furthermore, a second connecting column adapted to the size of the second connecting groove is provided on the top of the first connecting column, and two second limiting plates are symmetrically provided on the top of the second connecting column.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] When the first connecting post is fully inserted into the first connecting groove, the second connecting post will be inserted into the second connecting groove at the bottom of the roller mounting seat. When the first connecting post is fully inserted, the second connecting post will be aligned with the two guide grooves respectively. When the first connecting post is fully inserted, the second connecting post will be aligned with the two guide grooves respectively. When the first connecting post is fully inserted, the second connecting post will be aligned with the two guide grooves respectively. When the first connecting post is fully inserted, the second connecting post will be aligned with the two guide grooves respectively. When the first connecting post is fully inserted, the second connecting post will be aligned with the two guide grooves respectively. When the first connecting post is fully inserted, the second connecting post will be aligned with the two guide grooves respectively. When the first connecting post is fully inserted, the second connecting post will be aligned with the two guide grooves respectively. When the first connecting post is fully inserted, the second connecting post will be aligned with the two guide grooves respectively. When the first connecting post is fully inserted, the second connecting post will be aligned with the two guide grooves respectively. When the first connecting post is fully inserted, the second connecting post will be aligned with the two guide grooves respectively. When the first connecting post is fully inserted, the second connecting post will be aligned with the two guide grooves respectively. When the first connecting post is fully inserted, the second connecting post will be aligned with the two guide grooves respectively. When the first connecting post is fully inserted, the second connecting post will be aligned with the two guide grooves respectively. When the first connecting post is fully inserted

[0015] 2. When the roller assembly needs to be inserted, the utility model only needs to turn the sleeve to make the limit pin withdraw from the limit groove, and then reversely rotate the rotating plate to make the limit pin return to the guide groove position. At the same time, the first limit plate will also be staggered with the second limit plate. At this time, the roller assembly can be inserted from the roller mounting seat, thereby realizing the rapid disassembly of the roller assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional schematic diagram of the entire utility model;

[0017] Figure 2 It is a three-dimensional schematic diagram of the roller mounting seat in the utility model;

[0018] Figure 3 This is an exploded schematic diagram of the roller mounting base in the utility model;

[0019] Figure 4 It is a three-dimensional schematic diagram of the roller assembly of the utility model.

[0020] In the picture:

[0021] 1. Box body; 2. Roller mounting seat; 3. Roller assembly; 4. Pull rod; 5. Connecting plate; 6. First connecting groove; 7. Movable groove; 8. Pull sleeve; 9. Limit pin; 10. Roller frame; 11. Roller; 12. Rotating plate; 13. First connecting column; 14. Fixed groove; 15. Guide groove; 16. Limit groove; 17. Slide groove; 18. Slider; 19. Spring; 20. Second connecting groove; 21. First limit plate; 22. Second connecting column; 23. Second limit plate. DETAILED DESCRIPTION

[0022] The following embodiments of the present invention are described in further detail with reference to the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0023] like Figure 1-4 As shown, the utility model provides a trolley case that is easy to disassemble, including a case body 1, a roller mounting seat 2 and a roller assembly 3. A pull rod 4 is provided on one side of the top of the case body 1, and a connecting plate 5 fixedly connected to the bottom of the case body 1 is provided on the top of the roller mounting seat 2. A first connecting groove 6 is provided at the bottom of the roller mounting seat 2, and two penetrating movable grooves 7 are symmetrically provided on the inner wall of the first connecting groove 6. A shifting sleeve 8 is sleeved on the outer side of the roller mounting seat 2, and two limit pins 9 are symmetrically provided on the inner side of the shifting sleeve 8, and the two limit pins 9 are respectively inserted into the first connecting groove 6 from the inner side of the two movable grooves 7. The roller assembly 3 includes a roller frame 10, a roller 11 is installed at the bottom of the roller frame 10, and a rotating plate 12 is connected to the top of the roller frame 10. The outer side of the rotating plate 12 The side is provided with anti-slip grooves, and the rotating plate 12 and the roller frame 10 can be fixedly connected or rotatably connected. The number of fixedly connected roller frames 10 is at most two and both are located on the side close to the position of the pull rod 4 of the box body 1. A first connecting column 13 is provided on the top of the rotating plate 12, and the surface of the first connecting column 13 is provided with two fixing grooves 14 in a circumferential array. The top inner wall of the fixing groove 14 is inclined, and a penetrating guide groove 15 is provided on the top of the higher end. The limit pin 9 can enter the fixing groove 14 through the guide groove 15, and a limit groove 16 is provided at the other end of the top side of the fixing groove 14. In the process of the limit pin 9 rotating with the first connecting column 13, the limit pin 9 moves along the top inner wall of the fixing groove 14 to the position of the limit groove 16.

[0024] Furthermore, there are four roller mounting seats 2 , and the four roller mounting seats 2 are respectively installed at the four corners of the bottom of the box body 1 .

[0025] Furthermore, the width of the guide groove 15 and the width of the limiting groove 16 are both equal to the diameter of the limiting pin 9, so that the limiting pin 9 can easily enter the interior thereof.

[0026] Furthermore, two slide grooves 17 are symmetrically provided on the inner side of the first connecting groove 6, and two sliders 18 are symmetrically provided on the outer side of the roller mounting seat 2, and the two sliders 18 are respectively inserted into the two slide grooves 17, and a spring 19 is installed above the slider 18 in the slide groove 17, and the two ends of the spring 19 are respectively against the top inner wall of the slide groove 17 and the slider 18, and the limit pin 9 is reset by the spring 19. In the process of the limit pin 9 moving along the top inner wall of the fixing groove 14, it will gradually drive the sleeve 8 to move downward, so that the slider 18 squeezes the spring 19. When the limit pin 9 moves to the position of the limit groove 16, under the action of the spring 19, the sleeve 8 is pushed to move upward, and then the limit pin 9 is stuck in the limit groove 16, and the rotation of the first connecting column 13 is limited by the limit pin 9 and the limit groove 16.

[0027] Furthermore, a second connecting groove 20 is provided at the top of the first connecting groove 6, and two first limiting plates 21 are symmetrically provided at the bottom of the inner wall of the second connecting groove 20. A second connecting column 22 adapted to the size of the second connecting groove 20 is provided on the top of the first connecting column 13. After the first connecting column 13 is fully inserted into the first connecting groove 6, the second connecting column 22 will be inserted into the second connecting column 22 at the same time. Two second limiting plates 23 are symmetrically provided on the top of the second connecting column 22. As the first connecting column 13 rotates, the second connecting column 22 rotates so that the second limiting plate 23 coincides with the first limiting plate 21, and then the roller assembly 3 is fixed in the axial direction by the second limiting plate 23 and the first limiting plate 21.

[0028] Specific working principle:

[0029] When installing the roller assembly 3 of the present invention, it is only necessary to insert the first connecting post 13 on the roller assembly 3 into the first connecting groove 6 at the bottom of the roller mounting seat 2, and keep the two limit pins 9 aligned with the two guide grooves 15 respectively during the insertion process. After the first connecting post 13 is fully inserted, the limit pin 9 enters the fixed groove 14 through the guide groove 15. At this time, the rotating plate 12 is rotated to drive the first connecting post 13 to rotate through the rotating plate 12. During the rotation of the first connecting post 13, the limit pin 9 moves along the top inner wall of the inclined fixed groove 14 and drives the sleeve 8 to move in the direction close to the rotating plate 12. Until the limit pin 9 moves to the position of the limit groove 16, the sleeve 8 rebounds under the action of the spring 19 and drives the limit pin 9 to be stuck in the limit groove 16. The rotation of the first connecting post 13 is limited by the limit pin 9 and the limit groove 16. After the connecting post 13 is fully inserted into the first connecting groove 6, the second connecting post 22 will be inserted into the second connecting post 22 at the same time. Two second limit plates 23 are symmetrically provided on the top of the second connecting post 22. As the first connecting post 13 rotates, the second connecting post 22 rotates to make the second limit plate 23 coincide with the first limit plate 21, and then the roller assembly 3 is fixed in the axial direction by the second limit plate 23 and the first limit plate 21. The roller assembly 3 is quickly installed in the above manner. When the roller assembly 3 needs to be inserted, it is only necessary to move the sleeve 8 to make the limit pin 9 withdraw from the limit groove 16, and then rotate the rotating plate 12 in the opposite direction to make the limit pin 9 return to the guide groove 15 position. At the same time, the first limit plate 21 will also be staggered with the second limit plate 23. At this time, the roller assembly 3 can be inserted from the roller mounting seat 2, thereby realizing the quick disassembly of the roller assembly 3.

[0030] The implementation methods of the present invention are provided for the purpose of illustration and description. Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present invention. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A trolley case that is easy to disassemble, comprising a case body (1), a roller mounting seat (2) and a roller assembly (3), wherein a trolley (4) is provided on one side of the top of the case body (1), and characterized in that: The top of the roller mounting seat (2) is provided with a connecting plate (5) fixedly connected to the bottom of the box body (1); the bottom of the roller mounting seat (2) is provided with a first connecting groove (6); the inner wall of the first connecting groove (6) is symmetrically provided with two penetrating movable grooves (7); the outer side of the roller mounting seat (2) is provided with a shifting sleeve (8); the inner side of the shifting sleeve (8) is symmetrically provided with two limit pins (9), and the two limit pins (9) are respectively inserted into the first connecting groove (6) from the inner sides of the two movable grooves (7). The component (3) comprises a roller frame (10), a roller (11) is installed at the bottom of the roller frame (10), a rotating plate (12) is connected to the top of the roller frame (10), a first connecting column (13) is provided on the top of the rotating plate (12), two fixing grooves (14) are provided on the surface of the first connecting column (13) in a circumferential array, the top inner wall of the fixing groove (14) is inclined, and a penetrating guide groove (15) is provided at the top of the higher end, and a limiting groove (16) is provided at the other end of the top side of the fixing groove (14).

2. The easily disassembled trolley case according to claim 1, characterized in that: The number of the roller mounting seats (2) is four, and the four roller mounting seats (2) are respectively mounted at the four corners of the bottom of the box body (1).

3. The easily disassembled trolley case according to claim 1, characterized in that: The width of the guide groove (15) and the width of the limiting groove (16) are both equal to the diameter of the limiting pin (9).

4. The easily disassembled trolley case according to claim 1, characterized in that: Two slide grooves (17) are symmetrically arranged on the inner side of the first connecting groove (6), and two sliders (18) are symmetrically arranged on the outer side of the roller mounting seat (2), and the two sliders (18) are respectively inserted into the two slide grooves (17).

5. The easily disassembled trolley case according to claim 4, characterized in that: A spring (19) is installed above the slider (18) in the slide groove (17), and two ends of the spring (19) respectively abut against the top inner wall of the slide groove (17) and the slider (18).

6. The easily disassembled trolley case according to claim 1, characterized in that: A second connecting groove (20) is provided at the top of the first connecting groove (6), and two first limiting plates (21) are symmetrically provided at the bottom of the inner wall of the second connecting groove (20).

7. The easily disassembled trolley case according to claim 6, characterized in that: A second connecting column (22) having a size adapted to that of the second connecting groove (20) is provided on the top of the first connecting column (13), and two second limiting plates (23) are symmetrically provided on the top of the second connecting column (22).

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