Detachable universal wheel structure

Abstract

The utility model discloses a detachable universal wheel structure which comprises a universal wheel mechanism and a locking mechanism, the universal wheel mechanism comprises a universal wheel connecting plate and a universal wheel movably connected to the bottom of the universal wheel connecting plate, and the locking mechanism comprises a base and a clamping assembly installed on the top of the base. The base is fixed to the top of the universal wheel connecting plate, and the clamping assembly comprises a sliding block driving mechanism and a pair of sliding blocks used for being clamped into a supporting column / supporting cross beam at the bottom of equipment. The sliding block driving mechanism is connected with the pair of sliding blocks so as to drive the pair of sliding blocks to move in the opposite direction to clamp the supporting column / supporting cross beam or move in the opposite direction to loosen the supporting column / supporting cross beam. Thus, when the universal wheel structure needs to be installed, only the sliding block driving mechanism needs to be controlled to drive the pair of sliding blocks to move in the opposite direction, when the universal wheel structure needs to be disassembled, the pair of sliding blocks are controlled to move in the opposite direction, and therefore rapid installation and disassembly of the universal wheel structure and equipment can be achieved.

Description

Technical Field

[0001] The utility model relates to the field of universal wheels, in particular to a detachable universal wheel structure. Background Art

[0002] Due to stability requirements, many pieces of equipment lack wheels designed for mobile equipment. When equipment needs to be moved within a production workshop, it's typically hoisted by a crane or towed by a forklift. However, hoisting by a crane is not practical for moving equipment across workshops, and towing by a forklift is unstable and poses a safety hazard, potentially causing the equipment to topple over. A small number of pieces of equipment are designed with wheels on the bottom to facilitate movement, and these wheels are typically universal casters. Existing universal casters typically use screws to secure the universal wheel's connecting plate to the equipment to be moved, or the connecting plate is welded to the equipment.

[0003] The above information disclosed in this Background section is included only for enhancement of understanding of the background of the disclosure and therefore it may contain information that does not form the prior art that is currently known to a person of ordinary skill in the art. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a detachable universal wheel structure to address the defect that the existing universal wheel is connected to an object in a screw locking or welding manner, which brings about the inconvenience of replacement and maintenance.

[0005] The technical solution adopted by the utility model to solve its technical problems is: constructing a detachable universal wheel structure, which includes a universal wheel mechanism and a locking mechanism, the universal wheel mechanism includes a universal wheel connecting plate and a universal wheel movably connected to the bottom of the universal wheel connecting plate, the locking mechanism includes a base and a clamping assembly installed on the top of the base, the base is fixed on the top of the universal wheel connecting plate, the clamping assembly includes a slider driving mechanism and a pair of sliders for clamping into the support column / support beam at the bottom of the equipment, the slider driving mechanism is connected to the pair of sliders to drive the pair of sliders to move toward each other to clamp the support column / support beam or move in the opposite direction to release the support column / support beam.

[0006] Furthermore, in the detachable universal wheel structure described in the present invention, the base includes a sliding limit groove, the slider driving mechanism includes a screw rod rotatably mounted on the base, and a pair of screw rod axial fixing blocks corresponding to the pair of sliders, the screw rod is arranged along the sliding limit groove, the screw rod includes two sections of threads in opposite directions, the two sections of threads of the screw rod are respectively threadedly connected with a pair of screw rod axial fixing blocks, a pair of screw rod axial fixing blocks are slidably matched with the sliding limit groove, a pair of sliders are located above the base and the bottoms of the pair of sliders are fixed on the pair of screw rod axial fixing blocks accordingly.

[0007] Furthermore, in the detachable universal wheel structure described in the present invention, the slider driving mechanism also includes an upper screw rod fixing block and a lower screw rod fixing block, the lower screw rod fixing block is installed in the middle position of the sliding limit groove, and the upper screw rod fixing block is installed on the top of the lower screw rod fixing block, the upper screw rod fixing block and the lower screw rod fixing block are spliced ​​together to form a cylindrical groove, and the screw rod is confined in the cylindrical groove and can rotate.

[0008] Furthermore, in the detachable universal wheel structure described in the present invention, the screw rod radially protrudes at its axial center position to form an annular flange, and the middle position of the groove wall of the cylindrical groove is radially recessed to form an annular groove matching the annular flange, and the annular flange is inserted into the annular groove so that the screw rod cannot move in the axial direction.

[0009] Furthermore, in the detachable universal wheel structure described in the present invention, the two sections of thread of the screw rod are symmetrically distributed on both sides of the lower screw rod fixing block.

[0010] Furthermore, in the detachable universal wheel structure described in the present invention, either end or both ends of the screw rod extend from the sliding limit groove and are coaxially mounted with a handwheel.

[0011] Furthermore, in the detachable universal wheel structure described in the present invention, the locking mechanism also includes a pair of locking blocks corresponding to the pair of sliders, and one locking block is installed on the side of the slider facing the opposite side, and the locking block is made of elastic material.

[0012] Furthermore, in the detachable universal wheel structure described in the present invention, the locking block is a rubber part.

[0013] Furthermore, in the detachable universal wheel structure described in the present invention, a V-shaped groove is provided on a side of the locking block facing the opposite locking block, and the V-shaped groove extends through in a vertical direction and has a V-shaped horizontal cross-section.

[0014] Furthermore, in the detachable universal wheel structure described in the present invention, the slider driving mechanism includes a screw rotatably mounted on the base, and a pair of screw axial fixing blocks corresponding to the pair of sliders; the slider is L-shaped, including a horizontal part and a vertical part vertically connected to each other; the horizontal part is mounted on the top of the screw axial fixing block by screws, and the locking block is mounted on the vertical part by screws.

[0015] Furthermore, in the detachable universal wheel structure described in the present invention, the universal wheel connecting plate and the base are combined together by screws.

[0016] The detachable universal wheel structure of the present invention has the following beneficial effects: the detachable universal wheel structure of the present invention includes a universal wheel connecting plate, a universal wheel, a base, and a clamping assembly, wherein the base is fixed on the top of the universal wheel connecting plate, and the clamping assembly includes a slider driving mechanism and a pair of sliders for clamping into the support column / support beam at the bottom of the equipment, and the slider driving mechanism is connected to the pair of sliders to drive the pair of sliders to move toward each other to clamp the support column / support beam or move in the opposite direction to release the support column / support beam. In this way, when the universal wheel structure needs to be installed, it is only necessary to control the slider driving mechanism to drive the pair of sliders to move toward each other, and when the universal wheel structure needs to be disassembled, it is sufficient to control the pair of sliders to move in the opposite direction, thereby realizing the rapid installation and disassembly of the universal wheel and the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only embodiments of the present invention. Those skilled in the art can obtain other drawings based on the provided drawings without inventive work.

[0018] Figure 1 This is a structural diagram of the detachable universal wheel structure of the utility model;

[0019] Figure 2 This is an exploded view of the detachable universal wheel structure of the utility model;

[0020] Among them, the reference numerals in the figures are:

[0021] 1. Universal wheel mechanism; 11. Wheel body; 12. Wheel axle; 13. Universal wheel connecting plate;

[0022] 2. Locking mechanism; 21. Base; 211. Base; 212. Cover; 22. Screw; 23. Locking block; 24. Slider; 25. Handle; 26. Screw axial fixing block; 271. Lower screw fixing block; 272. Upper screw fixing block; 281-286. Screws. DETAILED DESCRIPTION

[0023] In order to solve the problem of inconvenience in replacement and maintenance caused by the existing connection method of universal wheels to objects using screw locking or welding, the utility model provides a detachable universal wheel structure. The general idea is: the universal wheel structure includes a universal wheel mechanism and a locking mechanism, wherein the universal wheel mechanism includes a universal wheel connecting plate and a universal wheel movably connected to the bottom of the universal wheel connecting plate, the locking mechanism includes a base and a clamping assembly installed on the top of the base, the base is fixed to the top of the universal wheel connecting plate, and the clamping assembly includes a slider driving mechanism and a pair of sliders for clamping into the support column / support beam at the bottom of the equipment, the slider driving mechanism is connected to the pair of sliders to drive the pair of sliders to move toward each other to clamp the support column / support beam or move in the opposite direction to release the support column / support beam; in this way, when the universal wheel needs to be installed, it is only necessary to control the slider driving mechanism to drive the pair of sliders to move toward each other, and when the universal wheel needs to be removed, it is sufficient to control the pair of sliders to move in the opposite direction, thereby realizing rapid installation and removal of the universal wheel and the equipment.

[0024] To facilitate understanding of the present invention, a more comprehensive description of the present invention will be given below with reference to the relevant drawings. Typical embodiments of the present invention are given in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive. It should be understood that the embodiments of the present invention and the specific features in the embodiments are detailed descriptions of the technical solutions of the present application, rather than limitations on the technical solutions of the present application. In the absence of conflict, the embodiments of the present invention and the technical features in the embodiments can be combined with each other.

[0025] refer to Figure 1-2 The detachable universal wheel structure of this embodiment includes a universal wheel mechanism 1 and a locking mechanism 2.

[0026] Among them, the universal wheel mechanism 1 can be composed of a basic universal wheel, mainly including a universal wheel connecting plate 13, a universal wheel movably connected to the bottom of the universal wheel connecting plate 13, and the universal wheel includes a wheel body 11, an axle 12, a bearing, etc. The universal wheel connecting plate 13 is roughly a horizontally arranged rectangular plate. The wheel body 11 is the basic part of the universal wheel, made of hard material, and its main function is to support the weight of the equipment and roll on the ground, thereby realizing the movement of the equipment. The axle 12 is the part connecting the wheel body 11, usually made of metal, which allows the wheel body 11 to rotate freely, thereby ensuring that the equipment can move smoothly. The bearing is located between the axle 12 and the wheel body 11. Its function is to reduce friction and make the wheel body 11 rotate more smoothly on the axle 12. In fact, these are the components of conventional universal wheels, so they will not be described in detail.

[0027] In this embodiment, a locking mechanism 2 is fixedly installed above the universal wheel connecting plate 13. The locking mechanism 2 includes a base 21 and a clamping assembly mounted on top of the base 21. The base 21 is fixed to the top of the universal wheel connecting plate 13. Specifically, the universal wheel connecting plate 13 and the base 21 are assembled together by screws 281. The clamping assembly includes a slider drive mechanism and a pair of sliders 24 for engaging the support column / support beam at the bottom of the device. The slider drive mechanism is connected to the pair of sliders 24 to drive the pair of sliders 24 to move toward each other to clamp the support column / support beam or move in the opposite direction to release the support column / support beam.

[0028] The slider driving mechanism includes a screw 22 rotatably mounted on the base 21 , a pair of screw axial fixing blocks 26 corresponding to the pair of sliders 24 , an upper screw fixing block 272 and a lower screw fixing block 271 .

[0029] Assuming the sliding direction of the slider 24 is defined as the left-right direction, the screw axial fixing block 26 is a rectangular block protruding from the front and rear sides. The base 21 includes a sliding limit groove that matches the screw axial fixing block 26. A pair of screw axial fixing blocks 26 are positioned opposite each other and slideably engage with the sliding limit groove. The screw axial fixing blocks 26 are confined within the sliding limit groove by the protruding portions on the front and rear sides, and cannot move up and down or forward and backward. They can only slide left and right within the sliding limit groove. Specifically, the base 21 includes a base 211 and a pair of cover plates 212. The base 211 is generally a rectangular plate that is horizontally stacked on the universal wheel connecting plate 13 and secured by screws 281. The upper surface of the base 211 is recessed with a sliding limit groove that extends in the left-right direction and passes through the left and right end surfaces of the base 211. The sliding limit groove is open at the top and has a vertical cross-section that forms an inverted "convex" shape. The vertical section of the cover plate 212 is L-shaped, and a pair of cover plates 212 are installed on the base 211 in a mirror-image manner based on the screws 286. The pair of cover plates 212 are arranged along the lower sliding limit groove and are respectively located on the front and rear sides of the lower sliding limit groove. The two cover plates 212 are combined to form an upper sliding limit groove with a "convex" shape in vertical section. The upper sliding limit groove passes through from top to bottom, and the upper sliding limit groove and the lower sliding limit groove are aligned up and down and together constitute the sliding limit groove.

[0030] The screw rod 22 is arranged in the sliding limiting groove. Specifically, the lower screw rod fixing block 271 is arranged at the middle of the sliding limiting groove in the length direction, the upper screw rod fixing block 272 is arranged on the top of the lower screw rod fixing block 271, and the screw 285 is locked with the base 211 through the upper screw rod fixing block 272 and the lower screw rod fixing block 271. The bottom of the upper screw rod fixing block 272 is provided with a semicylindrical groove, and the top of the lower screw rod fixing block 271 is provided with a semicylindrical groove. The upper screw rod fixing block 272 and the lower screw rod fixing block 271 are combined to form a cylindrical groove extending in the left-right direction, and the screw rod 22 is limited in the cylindrical groove and can rotate. Further, in order to avoid the axial movement of the screw rod 22, that is, the left-right movement, the center of the screw rod 22 is radially protruded to form an annular flange, the middle of the groove wall of the cylindrical groove is radially recessed to form an annular clamping groove matched with the annular flange, and the annular flange of the screw rod 22 is clamped in the annular clamping groove of the cylindrical groove, so that the screw rod 22 cannot move in the axial direction.

[0031] The screw rod 22 includes two opposite threads in the left-right direction, and the two threads of the screw rod 22 are symmetrically arranged on the two sides of the lower screw rod fixing block 271. The two threads of the screw rod 22 are respectively screwed with a pair of screw rod axial fixing blocks 26. A pair of sliding blocks 24 is arranged above the cover plate 212 of the base 21, and the bottoms of the pair of sliding blocks 24 are correspondingly fixed on the pair of screw rod axial fixing blocks 26 by the screw 284.

[0032] The locking mechanism 2 further includes a pair of locking blocks 23 corresponding to the pair of sliding blocks 24. One locking block 23 is arranged on the inner side of each sliding block 24, that is, the side facing the sliding block 24 on the opposite side. The locking block 23 is made of elastic material and has the functions of clamping and preventing sliding. For example, the locking block 23 in the embodiment is made of rubber. In this way, the embodiment can increase the friction force of the locking device part by assembling a locking block 23 made of rubber on the inner side of each sliding block 24, so that the locking mechanism 2 can lock the device part more firmly and reliably.

[0033] Specifically, the sliding block 24 is L-shaped and includes a horizontal part 241 and a vertical part 242 connected perpendicularly. The horizontal part 241 is horizontally arranged on the top of the screw rod axial fixing block 26 by the screw 284, and the locking block 23 is arranged on the vertical part 242 by the screw 283. Preferably, in order to further increase the friction force when clamping the device, one side of each locking block 23 facing the locking block 23 on the opposite side is provided with a V-shaped groove extending in the vertical direction and having a V-shaped horizontal cross section.

[0034] Further, either end or both ends of the screw rod 22 extends out of the sliding limiting groove and coaxially installs a hand wheel 25. The hand wheel 25 comprises a disc part and a connecting shaft vertically connected with the center of the disc part, the end of the screw rod 22 is sleeved with the connecting shaft of the hand wheel 25, and a screw 282 passes through the connecting shaft of the hand wheel 25 along the radial direction so as to lock the screw rod 22 and the hand wheel 25. Thus, rotating any hand wheel 25 can drive the two sliders 24 to move towards or away from each other under the action of the screw rod 22. When the two sliders 24 move towards each other under the action of the screw rod 22, the equipment part is locked. When the two sliders 24 move away from each other under the action of the screw rod 22, the equipment part is unlocked. Thus, the locking mechanism 2 can lock and unlock the equipment part by operating the hand wheel 25, so that the whole universal wheel structure is convenient to install, disassemble and maintain when connected with the equipment.

[0035] The installation and disassembly process of the universal wheel structure and the equipment is as follows: rotating the handle 25 of the locking mechanism 2 to make the left and right sliders 24 move away from each other. The gap between the two sliders 24 of the locking mechanism 2 is clamped into the support column or support beam at the bottom of the equipment, the handle 25 is rotated to make the left and right sliders move towards each other, and the handle 25 is stopped rotating until the locking block 23 has a certain compression amount, and the installation of the universal wheel structure is completed. When the universal wheel structure needs to be disassembled, the handle 25 is rotated to make the left and right sliders 24 move away from each other, and the universal wheel structure can be quickly disassembled.

[0036] In summary, the detachable universal wheel structure has the following beneficial effects: the detachable universal wheel structure comprises a universal wheel connecting plate, a universal wheel, a base, and a clamping assembly. The base is fixed on the top of the universal wheel connecting plate. The clamping assembly comprises a slider driving mechanism and a pair of sliders for clamping into the support column / support beam at the bottom of the equipment. The slider driving mechanism is connected with the pair of sliders to drive the pair of sliders to move towards each other to clamp the support column / support beam or to move in the opposite direction to loosen the support column / support beam. Thus, when the universal wheel needs to be installed, the slider driving mechanism is controlled to drive the pair of sliders to move towards each other, and when the universal wheel needs to be disassembled, the pair of sliders are controlled to move in the opposite direction, so that the universal wheel can be quickly installed and disassembled with the equipment.

[0037] It should be noted that when an element is referred to as being "fixed" to another element, it can be directly on the other element or there can be intervening elements. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or there can be intervening elements. The terms "vertical", "horizontal", "left", "right", and similar expressions used herein are for illustrative purposes only.

[0038] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0039] The embodiments of the present invention are described above in conjunction with the accompanying drawings, but the present invention is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present invention, ordinary technicians in this field can also make many forms without departing from the scope of protection of the purpose of the present invention and the claims, which are all within the protection of the present invention.

Claims

1. A detachable universal wheel structure, characterized in that: It includes a universal wheel mechanism and a locking mechanism, the universal wheel mechanism includes a universal wheel connecting plate and a universal wheel movably connected to the bottom of the universal wheel connecting plate, the locking mechanism includes a base and a clamping assembly installed on the top of the base, the base is fixed on the top of the universal wheel connecting plate, the clamping assembly includes a slider driving mechanism and a pair of sliders for clamping into the support column / support beam at the bottom of the device, the slider driving mechanism is connected to the pair of sliders to drive the pair of sliders to move toward each other to clamp the support column / support beam or move in the opposite direction to release the support column / support beam.

2. The detachable universal wheel structure according to claim 1, characterized in that: The base includes a sliding limit groove, and the slider driving mechanism includes a screw rod rotatably mounted on the base and a pair of screw rod axial fixing blocks corresponding to the pair of sliders. The screw rod is arranged along the sliding limit groove, and the screw rod includes two sections of threads in opposite directions. The two sections of threads of the screw rod are respectively threadedly connected to the pair of screw rod axial fixing blocks, and the pair of screw rod axial fixing blocks are slidably matched with the sliding limit groove. The pair of sliders are located above the base and the bottoms of the pair of sliders are fixed on the pair of screw rod axial fixing blocks accordingly.

3. The detachable universal wheel structure according to claim 2, characterized in that: The slider driving mechanism also includes an upper screw rod fixing block and a lower screw rod fixing block. The lower screw rod fixing block is installed in the middle position of the sliding limit groove, and the upper screw rod fixing block is installed on the top of the lower screw rod fixing block. The upper screw rod fixing block and the lower screw rod fixing block are combined to form a cylindrical groove. The screw is confined in the cylindrical groove and can rotate.

4. The detachable universal wheel structure according to claim 3, characterized in that: The screw rod radially protrudes at its axial center position to form an annular flange, and the middle position of the groove wall of the cylindrical groove is radially recessed to form an annular groove matching the annular flange. The annular flange of the screw rod is clamped into the annular groove of the cylindrical groove so that the screw rod cannot move in the axial direction.

5. The detachable universal wheel structure according to claim 2, characterized in that: Either one end or both ends of the screw rod extend from the sliding limit groove and are coaxially mounted with a hand wheel.

6. The detachable universal wheel structure according to claim 1, characterized in that: The locking mechanism further comprises a pair of locking blocks corresponding to the pair of sliders. One locking block is installed on a side of the slider facing the opposite slider, and the locking block is made of elastic material.

7. The detachable universal wheel structure according to claim 6, characterized in that: The locking block is a rubber part.

8. The detachable universal wheel structure according to claim 6, characterized in that: A V-shaped groove is provided on one side of the locking block facing the opposite locking block. The V-shaped groove extends through the locking block in a vertical direction and has a V-shaped horizontal cross section.

9. The detachable universal wheel structure according to claim 6, characterized in that: The slider driving mechanism includes a screw rotatably mounted on the base and a pair of screw axial fixing blocks corresponding to the pair of sliders; the slider is L-shaped and includes a horizontal part and a vertical part vertically connected to each other; the horizontal part is mounted on the top of the screw axial fixing block by screws, and the locking block is mounted on the vertical part by screws.

10. The detachable universal wheel structure according to claim 1, characterized in that: The universal wheel connecting plate and the base are assembled together by screws.

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