Universal trundle device capable of being turned over quickly

Abstract

The utility model relates to a universal caster device capable of turning over quickly, which comprises a fixed seat, a caster assembly and a turning assembly, the fixed seat is connected with an external object, an accommodating cavity is formed in the fixed seat, the turning assembly is arranged on the caster assembly, and the turning assembly is rotatably connected with the fixed seat; in the working state, the trundle assembly is embedded into the containing cavity, in the idle state, the trundle assembly is overturned to the outside of the containing cavity, and a locking assembly is arranged on the fixing base and used for locking the state of the trundle assembly. And the occupied space is large.

Description

Technical Field

[0001] The utility model belongs to the technical field of universal wheels, in particular to a universal caster device which can be turned over quickly. Background Art

[0002] Universal casters are also called movable casters. Their characteristic is that the bracket on which the wheels are mounted can rotate 360 ​​degrees horizontally in dynamic or static loads, and they are flexible in steering. They are widely used in various fields. Traditional universal casters mainly consist of a tray that can be connected to an external object, a bracket connected to the tray, and a roller mounted on the bracket. The roller and the bracket are connected by pin rivets. The tray and the external object, and the tray and the bracket are also fixedly connected. The external object can be moved with the help of universal casters. When the external object is moved to the destination, the universal wheel cannot be stored, and it takes up a lot of space. Utility Model Content

[0003] In view of various deficiencies in the prior art, a universal caster device that can be quickly flipped is proposed to solve the technical problems in the prior art that the universal wheels cannot be stored and occupy a large space.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] A universal caster device capable of rapid flipping comprises a fixed seat, a caster assembly and a flip assembly, wherein the fixed seat is connected to an external object, and a receiving cavity is provided inside the fixed seat, the flip assembly is arranged on the caster assembly, and the flip assembly is rotatably connected to the fixed seat;

[0006] In the working state, the caster assembly is embedded in the interior of the accommodating cavity. In the idle state, the caster assembly is flipped to the outside of the accommodating cavity. A locking assembly is provided on the fixing seat to lock the state of the caster assembly.

[0007] The technical solution is further configured as follows: the caster assembly includes a caster, a wheel mounting frame and a mounting shaft, the caster is rotatably connected to the wheel mounting frame, and the wheel mounting frame is fixedly connected to the mounting shaft.

[0008] The technical solution is further configured such that the flip assembly includes a rotatably connected wheel mounting block and a fixed block, the wheel mounting block is sleeved on the periphery of the mounting shaft, and the two can rotate relative to each other, the fixed block is fixedly connected to the fixed seat, and the fixed block is located outside the accommodating cavity.

[0009] The technical solution is further configured such that the flip assembly also includes a pressure cover, which is located above the wheel mounting block and tightens the wheel mounting block to the wheel mounting frame through a locking nut, and thrust bearings are provided between the pressure cover and the mounting shaft and between the wheel mounting block and the mounting shaft.

[0010] The technical solution is further configured as follows: the locking assembly includes a limit pin and a limit pin bracket, the limit pin bracket is fixedly connected to the fixing seat, the limit pin bracket is provided with an installation cavity for installing the limit pin, and a first return spring is provided between the limit pin and the inner wall of the installation cavity.

[0011] The technical solution is further configured such that the end of the limit pin is located outside the mounting cavity, and a limit groove for accommodating the end of the limit pin is provided on the wheel mounting block.

[0012] The technical solution is further configured as follows: the locking assembly includes a wheel locking hook, the wheel locking hook is rotatably connected to the fixing seat, and a second return spring is connected therebetween.

[0013] The technical solution is further configured such that a barb is provided at the end of the wheel locking hook, and a locking plate engaged with the barb is provided on the wheel mounting frame.

[0014] The technical solution is further configured such that a handle is provided at the end of the wheel locking hook.

[0015] The beneficial effects of the utility model are:

[0016] When in working state, the caster assembly is embedded in the accommodating cavity and locked, so that it can achieve 360° free rotation and movement; when in idle state, the caster assembly is flipped to the outside of the accommodating cavity and locked to achieve storage and reduce occupied space. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of a universal caster device capable of rapid flipping in an embodiment of the utility model in a working state;

[0018] Figure 2 It is a schematic diagram of a universal caster device capable of rapid flipping in an idle state in an embodiment of the utility model;

[0019] Figure 3 It is a schematic diagram of a fixing seat in an embodiment of the utility model;

[0020] Figure 4 It is a schematic diagram of a caster assembly and a flip assembly in an embodiment of the utility model.

[0021] In the accompanying drawings: 100, fixed seat; 200, caster assembly; 201, caster; 202, wheel mounting frame; 203, mounting shaft; 204, locking plate; 300, flip assembly; 301, wheel mounting block; 302, limiting groove; 303, pressure cover; 304, thrust bearing; 305, fixed block; 400, locking assembly; 401, limiting pin; 402, limiting pin bracket; 403, first return spring; 404, wheel locking hook; 405, second return spring; 406, handle. DETAILED DESCRIPTION

[0022] In order to enable those skilled in the art to better understand the technical solution of the present invention, the technical solution of the present invention is clearly and completely described below in conjunction with the drawings of the present invention. Based on the embodiments in this application, other similar embodiments obtained by ordinary technicians in this field without making creative work should all fall within the scope of protection of this application. In addition, the directional words mentioned in the following embodiments, such as "up", "down", "left", "right", etc., are only referenced to the directions of the drawings. Therefore, the directional words used are used to illustrate rather than limit the invention.

[0023] The utility model is further described below in conjunction with the accompanying drawings and preferred embodiments.

[0024] According to an embodiment of the utility model, a universal caster device that can be quickly flipped is provided. Figure 1 to Figure 2 , comprising a fixing seat 100, a caster assembly 200 and a flip assembly 300, wherein the fixing seat 100 is connected to an external object, and a receiving cavity is provided inside the fixing seat 100, and the flip assembly 300 is arranged on the caster assembly 200, and the flip assembly 300 is rotatably connected to the fixing seat 100;

[0025] In the working state, the caster assembly 200 is embedded in the interior of the accommodating cavity. In the idle state, the caster assembly 200 is flipped to the outside of the accommodating cavity. The fixing seat 100 is provided with a locking assembly 400 to lock the state of the caster assembly 200.

[0026] It should be noted that the fixing seat 100 can be fixed to an external object, such as a vehicle frame, by welding or bolting. In the working state, the caster assembly 200 is embedded in the interior of the accommodating cavity and locked, so that 360° free rotation and movement can be achieved; in the idle state, the caster assembly 200 is flipped to the outside of the accommodating cavity and locked to achieve storage and reduce the occupied space. The universal caster device can be applied to aerospace, ground and other transportation equipment, as well as weapons transportation, storage and transportation integrated vehicles, etc., and can meet the stable support, flexible transportation and rapid flipping functions of the equipment in the transportation and storage state.

[0027] In this embodiment, the universal caster device that can be quickly flipped can be seen in Figures 1 to 4 The caster assembly 200 includes a caster 201, a wheel mounting frame 202 and a mounting shaft 203. The caster 201 is rotatably connected to the wheel mounting frame 202, and the wheel mounting frame 202 is fixedly connected to the mounting shaft 203.

[0028] Specifically, the wheel mounting frame 202 is a U-shaped structure, the top of which is fixedly connected to the mounting shaft 203, and the bottom of which is rotatably connected to the caster 201. Among them, the caster 201 is a standard wheel with a bearing, made of nylon, the mounting shaft 203 is made of stainless steel, and the wheel mounting frame 202 is made of 45# steel plate.

[0029] In this embodiment, the universal caster device that can be quickly flipped can be seen in Figures 1 to 4 The flip assembly 300 includes a rotatably connected wheel mounting block 301 and a fixed block 305. The wheel mounting block 301 is sleeved on the periphery of the mounting shaft 203, and the two can rotate relative to each other. The fixed block 305 is fixedly connected to the fixing seat 100, and the fixed block 305 is located outside the accommodating cavity.

[0030] Furthermore, the flip assembly 300 also includes a pressure cover 303, which is located above the wheel mounting block 301 and tightens the wheel mounting block 301 to the wheel mounting frame 202 through a locking nut. Thrust bearings 304 are provided between the pressure cover 303 and the mounting shaft 203 and between the wheel mounting block 301 and the mounting shaft 203.

[0031] It should be noted that the wheel mounting block 301 is fixed by two upper and lower thrust bearings 304, and the wheel mounting block 301 and the caster assembly 200 are integrated by the pressure cover 303 and the locking nut, so that the caster assembly 200 can rotate freely relative to the wheel mounting block 301. The wheel mounting block 301 and the fixing block 305 are connected by a rotating shaft, and the wheel mounting block 301 and the caster assembly 200 are turned around the rotating shaft, thereby driving the caster 201 to turn. Among them, the wheel mounting block 301, the pressure cover 303, and the fixing block 305 are all made of 45# steel, and the thrust bearing 304 uses a standard product of high-quality bearing steel.

[0032] In this embodiment, the universal caster device that can be quickly flipped can be seen in Figures 1 to 4 The locking assembly 400 includes a limit pin 401 and a limit pin bracket 402. The limit pin bracket 402 is fixedly connected to the fixing seat 100. The limit pin bracket 402 is provided with an installation cavity for installing the limit pin 401. A first return spring 403 is provided between the limit pin 401 and the inner wall of the installation cavity. At the same time, a limit flange is provided on the limit pin 401 to prevent the limit pin 401 from escaping from the installation cavity.

[0033] Furthermore, the end of the limiting pin 401 is located outside the mounting cavity, and the wheel mounting block 301 is provided with a limiting groove 302 for accommodating the end of the limiting pin.

[0034] It should be noted that the limit pin 401 is used to lock the wheel mounting block 301 in the working state. The limit pin 401 cooperates with the first return spring 403. When the limit pin 401 is pulled away from the limit slot 302, the locking state between the limit pin 401 and the limit slot 302 can be released. After being released, it will automatically rebound and lock, which is convenient and quick. The limit pin 401 is made of high-quality rigid and strong weather-resistant plate, and the surface is galvanized after processing to improve the corrosion resistance.

[0035] In this embodiment, the universal caster device that can be quickly flipped can be seen in Figures 1 to 4 The locking assembly 400 includes a wheel locking hook 404, and the wheel locking hook 404 is rotatably connected to the fixing seat 100, and a second return spring 405 is connected therebetween.

[0036] Further, the head end of the wheel locking hook 404 is rotatably connected to the fixing seat 100 through the locking hook shaft, and the end of the wheel locking hook 404 is provided with a barb, and correspondingly, a locking plate 204 engaged with the barb is provided on the wheel mounting frame 202. At the same time, a handle 406 is provided at the head end of the wheel locking hook 404.

[0037] It should be noted that the wheel locking hook 404 locks the locking plate 204 on the caster assembly 200 in an idle state, which can effectively prevent the caster assembly 200 from falling off. The wheel locking hook 404 and the handle 406 are made of high-quality rigid weather-resistant plate, and the surface is galvanized after processing to improve corrosion resistance.

[0038] When the working state is finished and the caster 201 needs to be retracted, the limiting pin 401 is pulled, the wheel mounting block 301 and the caster assembly 200 are separated from the accommodating cavity, and rotate 180° along the rotating shaft between the wheel mounting block 301 and the fixing block 305, and when the barb of the wheel locking hook 404 is passed, the barb hook is hooked on the locking plate 204 under the action of the second return spring 405, completing the locking in the idle state. At the same time, because the second return spring 405 continuously applies a pulling force to the wheel locking hook 404, the caster assembly 200 will not fall off by itself, and the pulling force can also be adjusted by adjusting the compression amount of the second return spring 405.

[0039] When the caster 201 needs to be transformed from an idle state to a working state, the handle 406 is pressed, the hook is separated from the locking plate 204, the wheel mounting block 301 and the caster assembly 200 fall off together, and the caster assembly 201 is rotated downward 180° along the axis between the wheel mounting block 301 and the fixing block 305, and a thrust is applied to the caster assembly 200, and the limit groove 302 is engaged with the limit pin 401 to complete the locking in the working state.

[0040] The structure is simple and is processed by conventional production technology. It is suitable for mass production. It can be installed on the bottom plate of the frame, tooling, and bracket, taking up less space. The materials used are all commonly used materials, which are convenient for procurement and processing, and the production cost is low. As a short-life part, caster 201 can be replaced at any time, reducing the maintenance and maintenance costs of subsequent use. In the later use process, only the short-life parts are replaced, which can meet the overall long-term use and greatly improve the service life.

[0041] The present invention has been described in detail above. The above description is only a preferred embodiment of the present invention and should not limit the scope of implementation of the present invention. That is, all equivalent changes and modifications made within the scope of this application should still fall within the scope of the present invention.

Claims

1. A universal caster device capable of rapid flipping, characterized in that: It comprises a fixed seat, a caster assembly and a flip assembly, wherein the fixed seat is connected to an external object, and a receiving cavity is provided inside the fixed seat, and the flip assembly is arranged on the caster assembly, and the flip assembly is rotatably connected to the fixed seat; In the working state, the caster assembly is embedded in the interior of the accommodating cavity. In the idle state, the caster assembly is flipped to the outside of the accommodating cavity. A locking assembly is provided on the fixing seat to lock the state of the caster assembly.

2. The rapidly flippable universal caster device according to claim 1, characterized in that: The caster assembly comprises a caster, a wheel mounting frame and a mounting shaft. The caster is rotatably connected to the wheel mounting frame, and the wheel mounting frame is fixedly connected to the mounting shaft.

3. The rapidly flippable universal caster device according to claim 2, characterized in that: The flip assembly includes a rotatably connected wheel mounting block and a fixed block, the wheel mounting block is sleeved on the periphery of the mounting shaft, and the two can rotate relative to each other, the fixed block is fixedly connected to the fixed seat, and the fixed block is located outside the accommodating cavity.

4. The rapidly flippable universal caster device according to claim 3, characterized in that: The flip assembly also includes a pressure cover, which is located above the wheel mounting block and presses the wheel mounting block against the wheel mounting frame through a locking nut. Thrust bearings are provided between the pressure cover and the mounting shaft and between the wheel mounting block and the mounting shaft.

5. The rapidly flippable universal caster device according to claim 3 or 4, characterized in that: The locking assembly includes a limit pin and a limit pin bracket, the limit pin bracket is fixedly connected to the fixing seat, the limit pin bracket is provided with an installation cavity for installing the limit pin, and a first return spring is provided between the limit pin and the inner wall of the installation cavity.

6. The rapidly flippable universal caster device according to claim 5, characterized in that: The end of the limiting pin is located outside the mounting cavity, and the wheel mounting block is provided with a limiting groove for accommodating the end of the limiting pin.

7. The rapidly flippable universal caster device according to claim 2, characterized in that: The locking assembly comprises a wheel locking hook, the wheel locking hook is rotatably connected to the fixing seat, and a second return spring is connected therebetween.

8. The rapidly flippable universal caster device according to claim 7, characterized in that: A barb is provided at the end of the wheel locking hook, and a locking plate engaged with the barb is provided on the wheel mounting frame.

9. The rapidly flippable universal caster device according to claim 7 or 8, characterized in that: A handle is provided at the end of the wheel locking hook.

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