Trundle capable of being quickly assembled and disassembled

Abstract

The utility model discloses a trundle capable of being assembled and disassembled quickly, which comprises a movable assembly, a roller seat is arranged on the movable assembly, a plurality of trundle insertion holes are formed in the roller seat, quick-insertion welding rods are arranged on the trundle insertion holes, end welding pipes are arranged on the quick-insertion welding rods, and the end welding pipes are connected with the movable assembly. A roller shaft welding shaft is fixed to one end of the end welding pipe, a roller shaft welding piece is fixed to one end of the roller shaft welding shaft, a roller shaft is arranged on the roller shaft welding piece, rollers are arranged at the two ends of the roller shaft, and elastic check rings for shafts are arranged between the roller shaft and the rollers. The end part of the other end of the quick-insertion welding rod is a circular plane, four corners are chamfered, R-angle chamfering is carried out above the chamfered positions, an arc clamping groove is formed in the end part of the quick-insertion welding rod, chamfering is carried out on the arc clamping groove, and bead screws are arranged on the hole walls of the two sides of each trundle insertion hole. And the trouble of turning screws is avoided, and the construction time is shortened.

Description

Technical Field

[0001] The utility model relates to the technical field of ultraviolet curing mechanical equipment, in particular to a caster that can be quickly assembled and disassembled. Background Art

[0002] In practice, existing UV lamp chain casters have been found to have problems such as bolts easily falling off, difficulty in assembly, and a long time-consuming process. In particular, in our design, an 8-section small lamp chain is equipped with 27 long lamp pins and 27 short lamp pins, which are used for small-diameter and medium-diameter pipeline repair projects respectively. During field construction operations, bolts and other fasteners are difficult to retrieve once they fall off, and the long replacement time also affects construction efficiency.

[0003] Currently, no effective solutions have been proposed for the problems in related technologies. Utility Model Content

[0004] In view of the problems in the related art, the present invention proposes a caster that can be quickly assembled and disassembled to overcome the above technical problems existing in the existing related art.

[0005] To this end, the specific technical solutions adopted in this utility model are as follows:

[0006] A caster that can be quickly assembled and disassembled comprises a movable component, a quick-insert welding rod, a roller shaft and a roller shaft welding piece. The movable component is provided with a roller seat, the roller seat is provided with a plurality of caster sockets, the caster sockets are provided with a quick-insert welding rod, the quick-insert welding rod is provided with an end welding tube, one end of the end welding tube is fixed with a roller shaft welding shaft, one end of the roller shaft welding shaft is fixed with a roller shaft welding piece, the roller shaft is provided on the roller shaft welding piece, and rubber-coated rollers are provided at both ends of the roller shaft.

[0007] As a further solution of the present invention, a shaft elastic retaining ring is provided between the roller shaft and the rubber-coated roller.

[0008] As a further solution of the present invention, an axial hole is opened at one end of the end-welded tube, and the axial hole is parallel to the roller axis.

[0009] As a further solution of the present invention, the quick-insert welding rod is in the shape of a rectangular parallelepiped, the other end of the quick-insert welding rod is a circular plane, the four corners are chamfered, and the upper part of the chamfer is chamfered. An arc groove is provided at the end of the quick-insert welding rod, and the arc groove is chamfered.

[0010] As a further solution of the present invention, ball screws are provided on both side walls of each caster socket.

[0011] The lamp foot can be quickly assembled and disassembled, the screwing trouble is avoided, and the construction time is greatly shortened. BRIEF DESCRIPTION OF DRAWINGS

[0012] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, a brief introduction will be given to the drawings needed in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0013] Figure 1 is a schematic diagram of the overall structure of the quick-release caster according to an embodiment of the present application;

[0014] Figure 2 is a schematic diagram of the quick-release caster according to an embodiment of the present application;

[0015] Figure 3 is a schematic diagram of the quick-release caster according to an embodiment of the present application;

[0016] Figure 4 is a schematic diagram of the quick-release caster according to an embodiment of the present application;

[0017] Figure 5 is a schematic diagram of the quick-release caster according to an embodiment of the present application;

[0018] Figure 6 is a schematic diagram of the quick-release caster according to an embodiment of the present application.

[0019] In the drawings:

[0020] 1, movable assembly; 2, quick-release welding rod; 3, roller shaft; 4, roller shaft welding sheet; 5, roller seat; 6, caster jack; 7, end welding pipe; 8, roller shaft welding shaft; 9, rubber-coated roller; 10, elastic retaining ring for shaft; 11, shaft hole. DETAILED DESCRIPTION

[0021] To further illustrate the embodiments, the present application provides drawings, which are part of the disclosure of the present application, mainly used to illustrate the embodiments, and can be used to explain the operating principle of the embodiments in conjunction with the related description of the specification. With reference to these contents, those skilled in the art should understand other possible embodiments and advantages of the present application. The components in the drawings are not drawn to scale, and similar component symbols are usually used to represent similar components.

[0022] According to an embodiment of the present utility model, a caster that can be quickly assembled and disassembled is provided.

[0023] Please refer to the instruction manual Figures 1-6 According to an embodiment of the utility model, a caster that can be quickly assembled and disassembled comprises a movable component 1, a quick-insert welding rod 2, a roller shaft 3 and a roller shaft welding piece 4. The movable component 1 is provided with a roller seat 5, and the roller seat 5 is provided with a plurality of caster sockets 6. The caster sockets 6 are provided with a quick-insert welding rod 2, and the quick-insert welding rod 2 is provided with an end welding tube 7. One end of the end welding tube 7 is fixed with a roller shaft welding shaft 8, and one end of the roller shaft welding shaft 8 is fixed with a roller shaft welding piece 4. The roller shaft welding piece 4 is provided with a roller shaft 3. Rubber-coated rollers 9 are provided at both ends of the wheel axle 3, and an elastic circlip 10 for the shaft is provided between the roller shaft 3 and the rubber-coated roller 9. An axial hole 11 is provided at one end of the end welding tube 7, and the axial hole 11 is parallel to the roller shaft 3. The quick-insert welding rod 2 is a rectangular parallelepiped, and the other end of the quick-insert welding rod 2 is a circular plane, the four corners are chamfered, and the upper part of the chamfer is chamfered. An arc groove is provided at the end of the quick-insert welding rod 2, and the arc groove is chamfered. A ball screw is provided on the hole wall on both sides of each caster socket 6.

[0024] The lamp feet can be quickly assembled and disassembled, which avoids the trouble of tightening screws and greatly shortens the construction time.

[0025] During use, in the matching roller seat 5, ball screws are embedded in the hole walls on both sides of each square caster socket 6. When the ball screw is squeezed, the ball shrinks inward, and when the pressure is released, the ball pops out. After the quick-insert welding rod 2 is inserted into the caster socket 6, the ball of the ball screw is first squeezed inward, and then when it reaches the arc slot position, the ball is no longer squeezed and automatically pops out, thereby firmly locking the quick-insert welding rod 2, which cannot be easily disengaged without outward pulling force. Thanks to the arc design of the quick-insert welding rod 2 and the chamfered design on the edge of the step, an adult can pull out the quick-insert welding rod 2 with a little force, thereby realizing quick assembly and disassembly of the lamp foot, avoiding the trouble of screwing, and greatly shortening the construction time.

[0026] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A caster that can be quickly assembled and disassembled, comprising a movable assembly (1), a quick-insert welding rod (2), a roller shaft (3) and a roller shaft welding piece (4), characterized in that: The movable component (1) is provided with a roller seat (5), the roller seat (5) is provided with a plurality of caster sockets (6), the caster socket (6) is provided with a quick-insert welding rod (2), the quick-insert welding rod (2) is provided with an end welding tube (7), one end of the end welding tube (7) is fixed with a roller shaft welding shaft (8), one end of the roller shaft welding shaft (8) is fixed with a roller shaft welding piece (4), a roller shaft (3) is provided on the roller shaft welding piece (4), and both ends of the roller shaft (3) are provided with rubber-coated rollers (9).

2. The quick-detachable caster according to claim 1, characterized in that: A shaft elastic retaining ring (10) is provided between the roller shaft (3) and the rubber-coated roller (9).

3. The quick-detachable caster according to claim 1, characterized in that: An axial hole (11) is provided at one end of the end welding tube (7), and the axial hole (11) is parallel to the roller shaft (3).

4. The quick-detachable caster according to claim 1, characterized in that: The quick-insert welding rod (2) is in the shape of a rectangular parallelepiped. The other end of the quick-insert welding rod (2) is a circular plane. The four corners are chamfered, and the upper part of the chamfer is subjected to R-angle treatment. The end of the quick-insert welding rod (2) is provided with an arc slot, and the arc slot is chamfered.

5. The quick-detachable caster according to claim 1, characterized in that: Ball screws are provided on both side walls of each caster socket (6).

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