Trundle convenient to disassemble and replace

Abstract

The utility model discloses a trundle convenient to disassemble and replace, which comprises a trundle frame, a trundle body detachably assembled on the trundle frame, and a fixed shaft arranged on the trundle frame and capable of supporting the trundle body, a first through hole allowing the fixing shaft to penetrate through is formed in one side of the trundle frame, a second through hole corresponding to the first through hole is formed in the other side of the trundle frame, and a butt joint in insertion fit with the insertion end of the fixing shaft is arranged at the position, located at the second through hole, of the trundle frame. And a magnetic type locking mechanism capable of locking the fixed shaft in the butt joint is arranged between the butt joint and the fixed shaft. In this way, when the wheel body is replaced, a tire can be replaced by explaining the magnetic type locking mechanism and pulling out the fixing shaft from the trundle frame, and after replacement is completed, the fixing shaft is inserted back to the trundle frame again and locked through the magnetic type locking mechanism, so that the wheel body can be rapidly detached and replaced.

Description

Technical Field

[0001] This utility model relates to the technical field of casters, and in particular to a caster that is easy to disassemble and replace. Background Technology

[0002] Casters are widely used as an important moving component in numerous devices and equipment, such as trolleys, shelves, and industrial equipment. However, existing casters are generally fixed to the caster frame with bolts. This means that when the wheel is damaged or needs replacement, special tools and corresponding wrenches are required for disassembly. This makes the disassembly process cumbersome and complicated, consuming a lot of time and manpower. This causes great inconvenience to users and affects the efficiency of equipment use and maintenance costs. Utility Model Content

[0003] Therefore, the purpose of this utility model is to provide a caster that allows for quick wheel replacement.

[0004] The technical solution adopted by this utility model to solve its technical problem is as follows:

[0005] A caster with easily detachable and replaceable wheels includes a caster frame, a wheel body detachably mounted on the caster frame, and a fixed shaft disposed on the caster frame and supporting the wheel body. The caster frame has a first through hole on one side for the fixed shaft to pass through, and a second through hole on the other side corresponding to the first through hole. The caster frame has a mating connector located at the second through hole that engages with the insertion end of the fixed shaft. A magnetic locking mechanism is provided between the mating connector and the fixed shaft to lock the fixed shaft into the mating connector.

[0006] In a preferred embodiment of this utility model, the connector includes a sleeve fitted on the fixed shaft and extending outward from the second through hole, and a protrusion disposed on the sleeve and abutting against the inner wall of the caster frame, wherein the protrusion is provided with a threaded hole for threaded connection with the caster frame.

[0007] In a preferred embodiment of this utility model, the magnetic locking mechanism includes a first positioning hole disposed on the fixed shaft and perpendicular to the axial direction, a second positioning hole disposed on the sleeve and communicating with the first positioning hole, a pin disposed between the first positioning hole and the second positioning hole, and a first magnet block disposed on the sleeve and attracted to the insertion end of the pin, wherein the pin is made of metal material.

[0008] In a preferred embodiment of the present invention, the second positioning hole is disposed on the upper side of the sleeve.

[0009] In a preferred embodiment of this utility model, the magnetic locking mechanism further includes a third positioning hole disposed below the sleeve and communicating with the first positioning hole, the insertion end of the pin extending into the third positioning hole, a first positioning groove communicating with the third positioning hole being provided on the sleeve and located below the third positioning hole, and the first magnet being disposed in the first positioning groove.

[0010] In a preferred embodiment of the present invention, the sleeve is provided with a second positioning groove communicating with the second positioning hole on the upper side of the second positioning hole, a second magnet block is provided in the second positioning groove, and the second magnet block is provided with a through hole communicating with the second positioning hole.

[0011] In a preferred embodiment of this utility model, the pin includes an insertion part that is inserted into the first positioning hole, the second positioning hole and the third positioning hole, and a handle part disposed on the upper end of the insertion part and abutting against the upper side of the second magnet block.

[0012] In a preferred embodiment of this utility model, the outer diameter of the insertion part gradually increases from bottom to top.

[0013] In a preferred embodiment of the present invention, a positioning mechanism is provided between the fixed shaft and the first through hole. The positioning mechanism includes a positioning groove disposed on the side wall of the first through hole and a positioning protrusion disposed on the fixed shaft and cooperating with the positioning groove.

[0014] In a preferred embodiment of this utility model, a tire is fitted on the outer side of the wheel body, a bearing seat fitted on the fixed shaft is provided on the inner side of the wheel body, and a conductive wire is provided in the wheel body, one end of the conductive wire is in contact with the tire, and the other end is in contact with the bearing seat.

[0015] The beneficial effects of this utility model are as follows: The caster includes a caster frame, a wheel body, and a fixed axle. A first through hole is provided on one side of the caster frame for the fixed axle to pass through, and a second through hole is provided on the other side corresponding to the first through hole. A connector is provided on the caster frame at the second through hole to engage with the insertion end of the fixed axle. A magnetic locking mechanism is provided between the connector and the fixed axle to lock the fixed axle in the connector. Thus, when replacing the wheel body, the magnetic locking mechanism is activated, and the fixed axle is pulled out of the caster frame to replace the tire. After replacement, the fixed axle is reinserted into the caster frame and locked by the magnetic locking mechanism. This allows for quick disassembly and replacement of the wheel body. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the present invention;

[0017] Figure 2 This is a cross-sectional view of the present invention;

[0018] Figure 3 This is an assembly diagram of the connector and the magnetic locking mechanism in this utility model;

[0019] Figure 4 This is a cross-sectional view of the butt joint in this utility model;

[0020] Figure 5 This is a schematic diagram of the caster frame in this utility model;

[0021] Figure 6 This is a cross-sectional view of the fixed shaft in this utility model. Detailed Implementation

[0022] The technical solutions in the embodiments of this utility model will now be clearly and completely described in conjunction with the accompanying drawings.

[0023] Reference Figures 1 to 6 A caster with easily detachable and replaceable wheels includes a caster frame 1, a wheel body 2 detachably mounted on the caster frame 1, and a fixed shaft 3 disposed on the caster frame 1 and supporting the wheel body 2. The caster frame 1 has a first through hole 11 on one side for the fixed shaft 3 to pass through, and a second through hole 12 on the other side corresponding to the first through hole 11. The fixed shaft 3 has a protrusion on the side away from the insertion end that can abut against the outer wall of the caster frame 1. The caster frame 1 has a [missing information - likely a type of protrusion] located at the second through hole 12. A connector 4 is inserted into the fixed shaft 3. A magnetic locking mechanism 5 is provided between the connector 4 and the fixed shaft 3 to lock the fixed shaft 3 in the connector 4. When replacing the wheel 2, the fixed shaft 3 can be pulled out from the caster frame 1 by opening the magnetic locking mechanism 5, and the tire can be replaced. After replacement, the fixed shaft 3 is inserted back into the caster frame 1 and locked by the magnetic locking mechanism 5. This allows for quick disassembly and replacement of the wheel 2.

[0024] Reference Figure 2 and Figure 4 In this solution, the connector 4 includes a sleeve 41 that is fitted onto the fixed shaft 3 and extends out of the second through hole 12, and a flange 42 that is provided on the sleeve 41 and abuts against the inner wall of the caster frame 1. The flange 42 is provided with a threaded hole 43 for threaded connection with the caster frame 1, so that the connector 4 is assembled into the second through hole 12 of the caster frame 1 to connect with the fixed shaft 3.

[0025] Reference Figures 2 to 4In this scheme, the magnetic locking mechanism 5 includes a first positioning hole 51 disposed on the fixed shaft 3 and perpendicular to the axial direction, a second positioning hole 52 disposed on the sleeve 41 and communicating with the first positioning hole 51, a pin 53 disposed between the first positioning hole 51 and the second positioning hole 52, and a first magnet block 54 disposed on the sleeve 41 and attracted to the insertion end of the pin 53. The pin 53 is made of metal material. In this way, the fixed shaft 3 is locked to the sleeve 41 for fixation by the mutual attraction between the pin 53 and the first magnet block 54.

[0026] Reference Figure 1 and Figure 2 In this design, the second positioning hole 52 is located on the upper side of the sleeve 41. This makes it difficult for the pin 53 to disengage from the second positioning hole 52 due to gravity, thereby affecting the fixation of the fixed shaft 3.

[0027] Reference Figures 2 to 4 In this scheme, the magnetic locking mechanism 5 also includes a third positioning hole 55 located below the sleeve 41 and communicating with the first positioning hole 51. The insertion end of the pin 53 extends into the third positioning hole 55. A first positioning groove 61411 communicating with the third positioning hole 55 is provided on the sleeve 41 and located below the third positioning hole 55. The first magnet block 54 is bonded to the first positioning groove 61411. This can prevent the pin 53 from swinging and affecting the locking effect of the fixed shaft 3, so that the pin 53 locks the fixed shaft 3 more securely.

[0028] Reference Figures 2 to 4 In this design, the sleeve 41 has a second positioning groove 61412 communicating with the second positioning hole 52, located above the second positioning hole 52. A second magnet block 56 is bonded to the second positioning groove 61412, and the second magnet block 56 has a through hole 561 communicating with the second positioning hole 52. Further, the pin 53 includes an insertion part 531 that inserts into the first positioning hole 51, the second positioning hole 52, and the third positioning hole 55, and a handle part 532 located at the upper end of the insertion part 531 and abutting against the upper side of the second magnet block 56. This allows the pin 53 to be better fixed to the sleeve 41, and it can be removed from the sleeve 41 by forcefully lifting the handle part 532.

[0029] Reference Figures 2 to 4 In this design, the outer diameter of the insertion part 531 gradually increases from bottom to top, which makes it easy to smoothly insert the pin 53 into the sleeve 41 so that it can pass through the third positioning hole 55, the first positioning hole 51 and the second positioning hole 52 in sequence.

[0030] Reference Figure 5 and Figure 6In this scheme, a positioning mechanism 6 is provided between the fixed shaft 3 and the first through hole 11. The positioning mechanism 6 includes a positioning groove 61 provided on the side wall of the first through hole 11, and a positioning protrusion 62 provided on the fixed shaft 3 and cooperating with the positioning groove 61. In this way, through the positioning mechanism 6, after the fixed shaft 3 is inserted into the sleeve 41, the axes of the first positioning hole 51, the second positioning hole 52 and the third positioning hole 55 can be aligned on the same straight line.

[0031] Reference Figure 2 In this solution, a tire 7 is fitted on the outer side of the wheel body 2, and a bearing seat 8 fitted on the fixed shaft 3 is provided on the inner side of the wheel body 2. A conductive wire 9 is provided inside the wheel body 2. One end of the conductive wire 9 is in contact with the tire 7, and the other end is in contact with the bearing seat 8. In this way, the static electricity generated on the tire 7 during use can be removed through the conductive wire 9.

[0032] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A caster facilitating replacement of a wheel, comprising a caster frame (1), a wheel body (2) detachably assembled on the caster frame (1), and a fixing shaft (3) arranged on the caster frame (1) and capable of supporting the wheel body (2), characterized in that, The caster frame (1) is provided with a first through hole (11) through which the fixed shaft (3) passes, and a second through hole (12) provided on the other side corresponding to the first through hole (11). The caster frame (1) is provided with a butt joint (4) at the second through hole (12) and inserted into the end of the fixed shaft (3). The butt joint (4) and the fixed shaft (3) are provided with a magnetic locking mechanism (5) that can lock the fixed shaft (3) in the butt joint (4).

2. The caster according to claim 1, wherein The butt joint (4) includes a sleeve (41) sleeved on the fixed shaft (3) and extending out of the second through hole (12), and a convex edge (42) provided on the sleeve (41) and abutting against the inner side wall of the caster frame (1). The convex edge (42) is provided with a threaded hole (43) for threaded connection with the caster frame (1).

3. The caster according to claim 2, wherein The magnetic locking mechanism (5) includes a first positioning hole (51) provided on the fixed shaft (3) and perpendicular to the axial direction, a second positioning hole (52) provided on the sleeve (41) and communicating with the first positioning hole (51), a latch (53) provided between the first positioning hole (51) and the second positioning hole (52), and a first magnet block (54) provided on the sleeve (41) and attracted to the insertion end of the latch (53). The latch (53) is made of metal material.

4. The caster according to claim 3, wherein The second positioning hole (52) is provided on the upper side of the sleeve (41).

5. The caster according to claim 4, wherein The magnetic locking mechanism (5) further includes a third positioning hole (55) provided below the sleeve (41) and communicating with the first positioning hole (51). The insertion end of the latch (53) extends into the third positioning hole (55). The sleeve (41) is provided with a first positioning groove (411) below the third positioning hole (55) and communicating with the third positioning hole (55). The first magnet block (54) is provided in the first positioning groove (411).

6. The caster according to claim 5, wherein The sleeve (41) is provided with a second positioning groove (412) above the second positioning hole (52) and communicating with the second positioning hole (52). The second positioning groove (412) is provided with a second magnet block (56). The second magnet block (56) is provided with a perforation (561) communicating with the second positioning hole (52).

7. The caster according to claim 6, wherein The latch (53) includes an insertion part (531) inserted into the first positioning hole (51), the second positioning hole (52) and the third positioning hole (55), and a hand-held part (532) provided on the upper end of the insertion part (531) and abutting against the upper side of the second magnet block (56).

8. The caster according to claim 7, wherein The outer diameter of the insertion part (531) gradually increases from bottom to top.

9. The caster according to any one of claims 1 to 7, wherein The fixed shaft (3) and the first through hole (11) are provided with a positioning mechanism (6). The positioning mechanism (6) includes a positioning groove (61) provided on the side wall of the first through hole (11), and a positioning protrusion (62) provided on the fixed shaft (3) and matched with the positioning groove (61).

10. The caster according to claim 1, wherein The wheel body (2) is sleeved with a tire (7) on the outside, and is provided with a bearing seat (8) on the inside, which is sleeved on the fixed shaft (3), and is provided with a conductive wire (9) in the inside, one end of which is in contact with the tire (7), and the other end is in contact with the bearing seat (8).

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