Anti-falling trundle structure

Abstract

The utility model provides an anti-drop trundle structure, which relates to the technical field of trundle, and comprises a frame, the inner side of the frame is rotatably connected with a roller, the top end of the frame is rotatably connected with a mounting rod, the inner side of the mounting rod is provided with a positioning groove, the inner side of the positioning groove is inserted with a bolt, the inner side of the bolt is rotatably connected with a rotating rod, and the rotating rod is rotatably connected with the roller. A connecting rod is fixedly installed at the top end of the rotating rod, and a sleeve plate is fixedly installed at the bottom end of the connecting rod. According to the trundle, through the arrangement of the positioning groove, the plug pin, the rotating rod and the connecting rod, the anti-falling effect of the plug pin can be effectively achieved, the disassembly and assembly process is simple and rapid, the material price is low, practicability is high, and meanwhile the use experience of the trundle can be improved.

Description

Technical Field

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

[0002] Casters are usually composed of wheels, pulleys or ball-shaped structures, which are installed at the bottom of objects such as furniture, vehicles, mechanical equipment, etc. to move or support these objects. The main function of casters is to reduce friction, facilitate the movement of objects, and provide support and stability. Publication No. CN1458000A is a steering assembly that assembles a rotating wheel with a roller bearing at an appropriate position, and the roller bearing is installed in a shell cover and then installed on the shaft of the rotating wheel, and then protective covers are assembled on both sides of the rotating wheel and a pivot assembly is installed at the steering assembly with an appropriate bolt, wherein the steering assembly includes a generally U-shaped container body, a roller bearing, a set of top pieces and a positioning member, and the caster can use the roller bearing to achieve practical benefits with better stability in use. However, this type of caster does not have a latch anti-detachment mechanism. During driving, the latch may become loose due to external vibration or other factors, which may cause the wheel to detach from the vehicle, which may cause traffic accidents and endanger driving safety. Utility Model Content

[0003] The purpose of the utility model is to solve the technical problems raised in the above background technology.

[0004] The utility model adopts the following technical scheme: an anti-slip caster structure, including a frame, the inner side of the frame is rotatably connected with a roller, the top end of the frame is rotatably connected with a mounting rod, a positioning groove is opened on the inner side of the mounting rod, a latch is inserted on the inner side of the positioning groove, a rotating rod is rotatably connected on the inner side of the latch, a connecting rod is fixedly installed on the top end of the rotating rod, and a sleeve plate is fixedly installed on the bottom end of the connecting rod.

[0005] Preferably, the bolt is inserted into the inner side of the cover plate. Here, by providing the bolt and the cover plate, the bolt can be prevented from falling off after being inserted into the cover plate.

[0006] Preferably, the radius of the positioning groove is consistent with the radius of the bolt. Here, by providing a positioning groove with a radius consistent with the bolt, the insertion of the bolt can be facilitated and excessive shaking of the bolt can be prevented.

[0007] Preferably, a slot is provided on the inner side of the frame, a limit plate is rotatably connected to the surface of the frame, an insert block is inserted into the inner side of the slot, and a scraper is fixedly installed at the bottom end of the insert block. Here, by providing the slot, the limit plate, the insert block, and the scraper, the surface of the roller can be cleaned during the rotation of the roller, which is convenient for the maintenance of the roller.

[0008] Preferably, the scraper is slidably connected to the roller. Here, by providing the scraper, impurities and particles on the roller surface can be scraped off during the rolling process of the roller.

[0009] Preferably, the shapes of the insert block and the slot are both T-shaped. Here, by providing the T-shaped insert block and the slot, the scraper can be effectively limited in coordination with the limiting piece.

[0010] Compared with the prior art, the advantages and positive effects of the utility model are:

[0011] 1. In the utility model, by setting the positioning groove, the latch, the rotating rod and the connecting rod, the anti-dropping effect of the latch can be effectively achieved, and the disassembly and assembly process is simple and fast, the material price is low, the practicability is high and the use experience of the caster can be improved.

[0012] 2. In the utility model, by arranging the sleeve plate, the slot, the limit plate, the insert block and the scraper, the impurities on the surface can be scraped off during the rotation of the roller, which is convenient for the maintenance of the roller, and the scraper can be quickly removed from the frame surface for maintenance, which is highly practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 A schematic diagram of an anti-slip caster structure is provided for the utility model;

[0014] Figure 2 An exploded diagram of an anti-drop caster structure is proposed for the utility model;

[0015] Figure 3 The utility model proposes an anti-drop caster structure Figure 2 A in the enlarged view;

[0016] Figure 4 The utility model provides a bottom view of an anti-drop caster structure.

[0017] Legend:

[0018] 1. Frame; 2. Roller; 3. Mounting rod; 4. Positioning slot; 5. Latch; 6. Rotating rod; 7. Connecting rod; 8. Sleeve plate; 9. Slot; 10. Limiting piece; 11. Insert block; 12. Scraper. DETAILED DESCRIPTION

[0019] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0020] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.

[0021] Embodiment 1

[0022] See also Figure 1-4 The utility model provides a technical solution: an anti-slip caster structure, including a frame 1, a roller 2 is rotatably connected to the inner side of the frame 1, a mounting rod 3 is rotatably connected to the top of the frame 1, a positioning groove 4 is opened on the inner side of the mounting rod 3, the radius of the positioning groove 4 is consistent with the radius of the latch 5, a latch 5 is inserted on the inner side of the positioning groove 4, the latch 5 is inserted on the inner side of the sleeve plate 8, a rotating rod 6 is rotatably connected to the inner side of the latch 5, a connecting rod 7 is fixedly installed on the top of the rotating rod 6, a sleeve plate 8 is fixedly installed on the bottom end of the connecting rod 7, the rotating rod 6 is rotated to drive the connecting rod 7 and the sleeve plate 8 to rotate, then the sleeve plate 8 is slightly forced outward to cause it to deform, and the latch 5 is inserted into the inner side of the sleeve plate 8, then the fingers are released, and then the sleeve plate 8 will be reset and sleeved on the surface of the latch 5.

[0023] Embodiment 2

[0024] See also Figure 2-4 A slot 9 is provided on the inner side of the frame 1, and a limiting piece 10 is rotatably connected to the surface of the frame 1. An insert block 11 is inserted on the inner side of the slot 9. The insert block 11 and the slot 9 are both T-shaped. A scraper 12 is fixedly installed on the bottom end of the insert block 11. The scraper 12 is slidably connected to the roller 2. When the scraper 12 needs to be maintained, the limiting piece 10 is first rotated so that it no longer presses against the scraper 12, and then the scraper 12 can drive the insert block 11 to be pulled out from the inside of the slot 9 for maintenance.

[0025] Working principle: first insert the pin 5 into the inner side of the positioning groove 4, then rotate the rotating rod 6 and drive the connecting rod 7 and the sleeve plate 8 to rotate, then slightly apply force to the sleeve plate 8 to the outside to deform it, and sleeve the pin 5 into the inner side of the sleeve plate 8, then release your fingers, and then the sleeve plate 8 will be reset and sleeved on the surface of the pin 5. At this time, the positioning work of the pin 5 is completed to prevent the pin 5 from falling off. During the rotation of the roller 2, the scraper 12 will scrape off the impurities on the surface of the roller 2 to prevent excessive impurities from affecting the rotation of the roller 2. When the scraper 12 needs to be maintained, first rotate the limiting plate 10 so that it no longer presses against the scraper 12, and then the scraper 12 can drive the plug 11 to be pulled out from the inside of the slot 9 for maintenance. When installation is required, first align the plug 11 with the slot 9 and insert it, then rotate the limiting plate 10 and make it press against the surface of the scraper 12 again to complete the installation of the scraper 12.

[0026] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. An anti-drop caster structure, comprising a frame (1), characterized in that: The inner side of the frame (1) is rotatably connected to a roller (2), the top end of the frame (1) is rotatably connected to a mounting rod (3), a positioning groove (4) is provided on the inner side of the mounting rod (3), a latch (5) is inserted into the inner side of the positioning groove (4), a rotating rod (6) is rotatably connected to the inner side of the latch (5), a connecting rod (7) is fixedly installed on the top end of the rotating rod (6), and a sleeve plate (8) is fixedly installed on the bottom end of the connecting rod (7).

2. The anti-slip caster structure according to claim 1, characterized in that: The latch pin (5) is inserted into the inner side of the sleeve plate (8).

3. The anti-slip caster structure according to claim 1, characterized in that: The radius of the positioning groove (4) is consistent with the radius of the latch (5).

4. The anti-slip caster structure according to claim 1, characterized in that: A slot (9) is provided on the inner side of the frame (1); a limit plate (10) is rotatably connected to the surface of the frame (1); an insert block (11) is inserted into the inner side of the slot (9); a scraper (12) is fixedly mounted on the bottom end of the insert block (11).

5. The anti-slip caster structure according to claim 4, characterized in that: The scraper (12) is slidably connected to the roller (2).

6. The anti-slip caster structure according to claim 4, characterized in that: The insert block (11) and the slot (9) are both T-shaped.

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