Anti-cracking luggage trundle

Abstract

The utility model discloses an anti-cracking luggage caster, which relates to the luggage caster field, and comprises a support and a sleeve frame, the inner part of the support is rotatably connected with a roller, the middle part of the top of the support is fixedly connected with an adjusting assembly, the two sides of the top of the support are fixedly connected with protection assemblies, and through the arrangement of the adjusting assembly and the protection assemblies, the anti-cracking luggage caster can be used for preventing the luggage from cracking. During use, when the wheel set walks on an uneven bumpy road surface, the sleeve frame drives the connecting rods to deform, then the two connecting rods drive the moving blocks to extrude the damping springs, and then impact force caused by vibration is counteracted through cooperative use of a buffer cushion A, a buffer cushion B and the damping springs, so that the situation that the joints of the wheel set are cracked and broken due to large vibration impact is avoided, and the service life of the wheel set is prolonged. And meanwhile, a lead screw is rotated to drive a moving frame to move, then the moving frame moves to drive an adjusting rod to move, then the damping coefficient of a damping spring is adjusted, and therefore damping and buffering are conveniently conducted according to different road surface environment adjustment.

Description

Technical Field

[0001] The utility model relates to the field of luggage casters, in particular to an anti-cracking luggage caster. Background Art

[0002] Luggage and bags are often used in people's daily lives, especially for people who often go out. When users pull the luggage to move, they rely on the casters at the bottom of the luggage. Because luggage usually contains a lot of items, the role of luggage casters in the entire luggage components is very important. When in use, they must have both shock absorption and durability, so this is also a problem faced and existed by traditional luggage casters.

[0003] Existing luggage wheel sets are not equipped with shock-absorbing measures. When towing on uneven roads, if the road surface is uneven, the wheels will constantly collide and rub with the bumpy road surface during use, which can easily cause the joints of the wheels to crack and break, causing the rollers to fall off, thus shortening the service life of the wheels.

[0004] For this reason, we propose an anti-cracking luggage caster. Utility Model Content

[0005] The utility model provides a crack-proof luggage caster.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solution: an anti-cracking luggage caster, comprising a bracket and a sleeve, wherein a roller is rotatably connected to the interior of the bracket, an adjustment component is fixedly connected to the middle of the top of the bracket, protective components are fixedly connected to both sides of the top of the bracket, and connecting components are fixedly connected to the four corners of the inner top wall of the sleeve;

[0007] The protective assembly includes a cross bar, a cross slot is provided in the middle of the upper surface of the cross bar, and moving blocks are slidably connected on both sides of the cross slot. The tops of the two moving blocks are hinged to connecting rods through movable hinges A, and the other ends of the two connecting rods are hinged to the inner top wall of the sleeve frame through movable hinges B. One side of the two moving blocks is fixedly connected to a buffer pad A, and the other side of the buffer pad A is fixedly connected to an insertion rod, and the other end of the insertion rod is sleeved with a sleeve rod, and the other end of the sleeve rod is fixedly connected to a buffer pad B, and the other side of the buffer pad B is fixedly connected to a blocking plate, and a shock-absorbing spring is sleeved on the surface of the sleeve rod, and the two ends of the shock-absorbing spring are respectively fixedly connected to the sides of the buffer pad A and the buffer pad B.

[0008] Preferably, the adjustment assembly includes a mounting frame, one side of the inner wall of the mounting frame is rotatably connected to a screw rod by installing an A bearing, both sides of the screw rod surface are spline-connected to a movable frame, both sides of the movable frame are fixedly connected to an adjustment rod, the other end of the adjustment rod passes through the side of the cross bar and is connected to the other side of the blocking plate; rotating the screw rod drives the movable frame to move, and then the movement of the movable frame drives the adjustment rod to move, thereby adjusting the elastic force of the shock-absorbing spring.

[0009] Preferably, the connecting assembly includes a right-angle plate, a vertical pole passes through the bottom of the right-angle plate, the top of the vertical pole is fixedly connected to the top plate, the bottom of the vertical pole is fixedly connected to the bottom plate, the bottom of the bottom plate is fixedly connected to the upper surface of the bracket, and a buffer spring is sleeved on the surface of the vertical pole, and the top and bottom of the buffer spring are respectively fixedly connected to the bottom of the right-angle plate and the upper surface of the bottom plate; when encountering vibration, the right-angle plate compresses the buffer spring downward, and uses the elastic force of the buffer spring to further strengthen the buffering of the vibration.

[0010] Preferably, the surface of the roller is sleeved with an anti-cracking rubber sleeve, and the surface of the anti-cracking rubber sleeve is provided with anti-slip grooves; through the provision of the anti-cracking rubber sleeve, the anti-cracking rubber sleeve can reduce the impact force on the roller itself by using its own resilience, so that the impact vibration on the roller itself is reduced to a minimum, thereby preventing the roller from cracking due to strong vibration and collision.

[0011] Preferably, the top of the sleeve is fixedly connected to a connecting column, the top of the connecting column is fixedly connected to an assembly plate, and the surface of the assembly plate is provided with an installation hole; the assembly plate is used to facilitate the installation of the roller to the bottom of the bag, which is convenient for installation and disassembly.

[0012] Preferably, the surface of the screw rod close to the other end is rotated inside the other side of the mounting frame by installing the B bearing, and the other end of the screw rod is fixedly connected with a torsion; the setting of the torsion makes it convenient for personnel to rotate the screw rod and adjust the shock-absorbing spring.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] The utility model is provided with an adjustment component and a protection component. When the wheel set is in use, the frame drives the connecting rod to deform, and then the two connecting rods drive the moving block to squeeze the shock-absorbing spring. Then, the buffer pad A, the buffer pad B and the shock-absorbing spring are used in conjunction with each other to offset the impact force caused by the vibration, thereby avoiding cracking and disconnection of the wheel set connection caused by large vibration impact, which affects the use of the wheel set. At the same time, the screw rod is rotated to drive the moving frame to move, and then the movement of the moving frame drives the adjusting rod to move, thereby adjusting the shock absorption coefficient of the shock-absorbing spring, so that it is convenient to adjust the shock absorption and buffering according to different road conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the overall split structure of the utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the adjustment component of the utility model;

[0018] Figure 4 This is a schematic diagram of the protective component structure of the utility model.

[0019] In the figure: 1. Bracket; 2. Roller; 3. Adjustment assembly; 301. Mounting frame; 302. Screw rod; 303. Moving frame; 304. Adjustment rod; 4. Protection assembly; 401. Cross bar; 402. Moving block; 403. Connecting rod; 404. Buffer pad A; 405. Insert rod; 406. Sleeve rod; 407. Buffer pad B; 408. Blocking plate; 409. Shock-absorbing spring; 5. Sleeve frame; 6. Connection assembly; 601. Right-angle plate; 602. Vertical pole; 603. Bottom plate; 604. Buffer spring; 7. Assembly plate; 8. Anti-cracking rubber sleeve; 9. Twist. DETAILED DESCRIPTION

[0020] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] Example 1

[0022] See also Figure 1-4 The figure shows an anti-cracking luggage caster, which includes a bracket 1 and a sleeve 5. The bracket 1 is internally rotatably connected to a roller 2, the middle of the top of the bracket 1 is fixedly connected to an adjustment component 3, both sides of the top of the bracket 1 are fixedly connected to a protective component 4, and the four corners of the top wall of the sleeve 5 are fixedly connected to a connecting component 6;

[0023] The protective component 4 includes a cross bar 401, a cross slot is provided in the middle of the upper surface of the cross bar 401, and moving blocks 402 are slidably connected on both sides of the inside of the cross slot, the tops of the two moving blocks 402 are hinged with connecting rods 403 through movable hinges A, and the other ends of the two connecting rods 403 are hinged to the inner top wall of the sleeve frame 5 through movable hinges B, one side of the two moving blocks 402 is fixedly connected with a buffer pad A 404, the other side of the buffer pad A 404 is fixedly connected with an insertion rod 405, the other end of the insertion rod 405 is sleeved with a sleeve rod 406, the other end of the sleeve rod 406 is fixedly connected with a buffer pad B 407, the other side of the buffer pad B 407 is fixedly connected with a blocking plate 408, and the surface of the sleeve rod 406 is sleeved with a shock-absorbing spring 409, and the two ends of the shock-absorbing spring 409 are respectively fixedly connected to the sides of the buffer pad A 404 and the buffer pad B 407.

[0024] In this embodiment: when the wheel set is running on an uneven and bumpy road surface, the frame 5 drives the connecting rod 403 to deform, and then the two connecting rods 403 drive the moving block 402 to squeeze the shock-absorbing spring 409, and then the A buffer pad 404, B buffer pad 407 and the shock-absorbing spring 409 are used in conjunction to offset the impact force caused by the vibration. At the same time, the right-angle plate 601 compresses the buffer spring 604 downward, and the elastic force of the buffer spring 604 is used to further strengthen the buffering. When the wheel set is running on different road surfaces, the rotating screw 302 drives the moving frame 303 to move, and then the movement of the moving frame 303 drives the adjusting rod 304 to move, and then the shock absorption coefficient of the shock-absorbing spring 409 is adjusted, so as to facilitate the adjustment of shock absorption and buffering according to different road conditions.

[0025] See also Figure 1 and Figure 3 In the figure, the adjustment component 3 includes a mounting frame 301, and one side of the inner wall of the mounting frame 301 is rotatably connected to a screw rod 302 by installing a bearing A. Both sides of the surface of the screw rod 302 are spline-connected to a movable frame 303, and both sides of the movable frame 303 are fixedly connected to an adjustment rod 304. The other end of the adjustment rod 304 passes through the side of the cross bar 401 and is connected to the other side of the blocking plate 408.

[0026] In this embodiment, the screw rod 302 is rotated to drive the moving frame 303 to move, and then the moving frame 303 moves to drive the adjusting rod 304 to move, thereby adjusting the elastic force of the shock-absorbing spring 409.

[0027] Example 2

[0028] See also Figure 1 and Figure 2This embodiment further explains Example 1. In the figure, the connecting component 6 includes a right-angle plate 601, a vertical rod 602 passes through the bottom of the right-angle plate 601, the top of the vertical rod 602 is fixedly connected to the top plate, the bottom of the vertical rod 602 is fixedly connected to the bottom of the bottom plate 603, the bottom of the bottom plate 603 is fixedly connected to the upper surface of the bracket 1, and a buffer spring 604 is sleeved on the surface of the vertical rod 602. The top and bottom of the buffer spring 604 are respectively fixedly connected to the bottom of the right-angle plate 601 and the upper surface of the bottom plate 603.

[0029] In this embodiment, when encountering vibration, the right-angle plate 601 compresses the buffer spring 604 downward, and uses the elastic force of the buffer spring 604 to further strengthen the buffering of the vibration.

[0030] See also Figure 2 and Figure 4 In the figure, the top of the sleeve frame 5 is fixedly connected with a connecting column, the top of the connecting column is fixedly connected with an assembly plate 7, and the surface of the assembly plate 7 is provided with a mounting hole.

[0031] In this embodiment, the roller 2 is easily mounted to the bottom of the bag through the assembly plate 7, which facilitates installation and removal.

[0032] See also Figure 1 and Figure 2 In the figure, the surface of the roller 2 is sleeved with an anti-cracking rubber sleeve 8, and the surface of the anti-cracking rubber sleeve 8 is provided with anti-slip grooves.

[0033] In this embodiment, the anti-cracking rubber sleeve 8 can reduce the impact force on the roller 2 by using its own resilience, thereby minimizing the impact vibration on the roller 2 and preventing the roller 2 from cracking due to strong vibration and collision.

[0034] Example 3

[0035] See also Figure 1 and Figure 3 In the figure, the surface of the screw rod 302 near the other end is rotated inside the other side of the mounting bracket 301 by installing the B bearing, and the other end of the screw rod 302 is fixedly connected to the torsion bar 9.

[0036] In this embodiment, the setting of the knob 9 makes it easy for personnel to rotate the screw rod 302 and adjust the shock-absorbing spring 409.

[0037] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include" or "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0038] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A crack-proof luggage caster, characterized by: The invention comprises a bracket (1) and a sleeve (5), wherein the bracket (1) is internally rotatably connected to a roller (2), an adjustment component (3) is fixedly connected to the middle of the top of the bracket (1), both sides of the top of the bracket (1) are fixedly connected to protective components (4), and the four corners of the inner top wall of the sleeve (5) are fixedly connected to connecting components (6); The protective assembly (4) includes a cross bar (401), a cross slot is provided in the middle of the upper surface of the cross bar (401), and both sides of the inside of the cross slot are slidably connected to a moving block (402), the tops of the two moving blocks (402) are hinged to a connecting rod (403) through a movable hinge A, and the other ends of the two connecting rods (403) are hinged to the inner top wall of the sleeve (5) through a movable hinge B, and one side of the two moving blocks (402) is fixedly connected to an A buffer pad (404), and the A buffer pad The other side of (404) is fixedly connected to an insertion rod (405), the other end of the insertion rod (405) is sleeved with a sleeve rod (406), the other end of the sleeve rod (406) is fixedly connected to a B buffer pad (407), the other side of the B buffer pad (407) is fixedly connected to a blocking plate (408), the surface of the sleeve rod (406) is sleeved with a shock-absorbing spring (409), and the two ends of the shock-absorbing spring (409) are respectively fixedly connected to the side surfaces of the A buffer pad (404) and the B buffer pad (407).

2. The anti-cracking luggage caster according to claim 1, characterized in that: The adjustment assembly (3) comprises a mounting frame (301), one side of the inner wall of the mounting frame (301) is rotatably connected to a screw rod (302) by installing an A bearing, both sides of the surface of the screw rod (302) are spline-connected to a movable frame (303), both sides of the movable frame (303) are fixedly connected to an adjustment rod (304), and the other end of the adjustment rod (304) passes through the side of the cross bar (401) and is connected to the other side of the blocking plate (408).

3. The anti-cracking luggage caster according to claim 1, characterized in that: The connecting assembly (6) comprises a right-angle plate (601), a vertical rod (602) passing through the bottom of the right-angle plate (601), a top plate fixedly connected to the top of the vertical rod (602), a bottom plate (603) fixedly connected to the bottom of the vertical rod (602), a bottom of the bottom plate (603) fixedly connected to the upper surface of the bracket (1), a buffer spring (604) sleeved on the surface of the vertical rod (602), and the top and bottom of the buffer spring (604) fixedly connected to the bottom of the right-angle plate (601) and the upper surface of the bottom plate (603), respectively.

4. The anti-cracking luggage caster according to claim 1, characterized in that: The top of the sleeve frame (5) is fixedly connected to a connecting column, the top of the connecting column is fixedly connected to an assembly plate (7), and a mounting hole is provided on the surface of the assembly plate (7).

5. The anti-cracking luggage caster according to claim 1, characterized in that: An anti-cracking rubber sleeve (8) is sleeved on the surface of the roller (2), and anti-slip grooves are provided on the surface of the anti-cracking rubber sleeve (8).

6. The anti-cracking luggage caster according to claim 2, characterized in that: The surface of the screw rod (302) close to the other end is rotated inside the other side of the mounting frame (301) by installing a B bearing, and the other end of the screw rod (302) is fixedly connected to a toggle (9).

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