Straight line wheel convenient to disassemble and assemble

Abstract

The utility model discloses a straight grain wheel convenient to disassemble and assemble, the straight grain wheel is applied to a cart, a bearing plate is fixedly installed on the cart, four wheel connecting blocks are movably installed on the bottom side of the bearing plate, and straight grain wheels are movably installed on the bottom sides of the four wheel connecting blocks. Through the arrangement of the lifting handle, the sliding connecting block, the sliding rod and the like, when the wheel connecting block and the straight line wheel need to be replaced, the sliding connecting block is pulled outwards, so that the sliding rod is separated from the connecting block moving groove and the limiting block moving groove, the extrusion block can move, and at the moment, the lifting handle is pulled to replace the wheel connecting block and the straight line wheel. The lifting handle is separated from the surface of the limiting plate, under the action of the torsional spring, the limiting plate is turned over and separated from the connecting block connecting groove and the bearing plate connecting groove, limitation on the wheel connecting block is relieved, the wheel connecting block can be taken down from the bearing plate to be replaced, a screwdriver does not need to be used for disassembly, and convenience and rapidness are achieved.

Description

Technical Field

[0001] The utility model relates to the field of straight-grain wheels, in particular to a straight-grain wheel which is easy to disassemble and assemble. Background Art

[0002] A straight-grain wheel is a type of wheel that is formed by rolling a straight-line pattern on the surface of the wheel. This improves the wheel's grip and mainly serves to prevent slipping.

[0003] In the prior art, after the cart has been used for a long time, the straight-grained wheel on the cart is easily damaged due to the long-term friction with the ground. When replacing the damaged straight-grained wheel, since the straight-grained wheel is fixed on the cart with screws, it is necessary to use an external tool screwdriver to disassemble and install it, which is inconvenient. Therefore, a straight-grained wheel that is easy to disassemble and assemble is needed to meet people's needs. Utility Model Content

[0004] The utility model aims to provide a straight-grain wheel that is easy to disassemble and assemble, so as to solve the problem in the above-mentioned background technology that when replacing a damaged straight-grain wheel, a screwdriver is needed for disassembly and installation because the straight-grain wheel is fixed on a trolley with screws, which makes the process inconvenient.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a straight-grained wheel that is easy to disassemble and assemble, applied to a cart, wherein a load-bearing plate is fixedly installed on the cart, and four wheel connecting blocks are movably installed on the bottom side of the load-bearing plate, and the bottom sides of the four wheel connecting blocks are movably installed with straight-grained wheels, and the four wheel connecting blocks are slidably installed with connecting structures, and two connecting rods are fixedly installed on the four wheel connecting blocks, and the eight connecting rods are rotatably installed with fixed structures, and eight T-blocks are slidably installed on the load-bearing plate, and the eight T-blocks are fixedly installed with limiting structures.

[0006] Preferably, the connection comprises an extrusion block, which is slidably mounted on the wheel connection block, a handle is fixedly mounted on one end of the extrusion block, and limit blocks are fixedly mounted on both sides of the extrusion block.

[0007] Preferably, a connecting block installation groove is provided on the wheel connecting block, and the extrusion block is slidably installed in the connecting block installation groove. A limiting groove is provided on the wheel connecting block, and the limiting block is slidably installed in the limiting groove.

[0008] Preferably, the fixed structure includes a rotating shaft, which is rotatably mounted on the inner wall of the connecting rod, the connecting rod is fixedly mounted on the inner wall of the connecting block mounting groove, a limiting plate is fixedly mounted on the rotating shaft, the limiting plate is in contact with the extrusion block, a torsion spring is fixedly sleeved on the rotating shaft, one end of the torsion spring is fixedly mounted on the inner wall of the connecting rod, and the other end of the torsion spring is fixedly mounted on the limiting plate.

[0009] Preferably, a connecting block connecting groove is provided on the wheel connecting block, and the limiting plate is movably installed in the connecting block connecting groove; a bearing plate connecting groove is provided on the bearing plate, and the limiting plate is movably installed in the bearing plate connecting groove.

[0010] Preferably, the limiting structure comprises a sliding connection block, which is fixedly mounted on one end of a T-shaped block, a sliding rod is fixedly mounted on the T-shaped block, and a spring connection block is slidably mounted on the sliding rod.

[0011] Preferably, the load-bearing plate is provided with a T-slot, the T-block is slidably installed in the T-slot, the spring connecting block is fixedly installed on the inner wall of the T-slot, the wheel connecting block is provided with a connecting block movable groove, the sliding rod is movably installed in the connecting block movable groove, the load-bearing plate is provided with a load-bearing plate sliding groove, the sliding rod is slidably installed in the load-bearing plate sliding groove, the limit block is provided with a limit block movable groove, and the sliding rod is movably installed in the limit block movable groove.

[0012] Preferably, a spring is slidably sleeved on the sliding rod, and two ends of the spring are respectively fixedly mounted on a side where the T-shaped block and the spring connecting block are close to each other.

[0013] The beneficial effects of the utility model are:

[0014] The utility model discloses a wheel connecting block, a wheel connecting block and a wheel bearing plate, and a wheel connecting block are connected to the wheel bearing plate by the structure of the handle, the wheel connecting block and the wheel bearing plate. When the wheel connecting block and the wheel bearing plate need to be replaced, the wheel connecting block can be removed from the wheel bearing plate for replacement without the need to use a screwdriver for disassembly. The utility model discloses a wheel connecting block, a wheel connecting block, a wheel connecting block and a wheel bearing plate, and a wheel connecting block are connected to the wheel bearing plate by the structure of the handle, the wheel connecting block and the wheel bearing plate can be replaced by ...

[0015] The utility model discloses that by setting structures such as the extrusion block, the limit plate, the spring and the like, when it is necessary to install the wheel connection block and the straight-grained wheel, the sliding connection block is first pulled to allow the sliding rod to enter the sliding groove of the load-bearing plate, and then the wheel connection block is inserted into the load-bearing plate. Then, the handle is pushed to allow the extrusion block to squeeze the limit plate into the connection groove of the connection block and the connection groove of the load-bearing plate to complete the fixation of the extrusion block. At the same time, the limit block movable groove on the limit block is aligned with the connection block movable groove and the load-bearing plate sliding groove, the pulled sliding connection block is released, and under the action of the spring connection block, the sliding rod is inserted into the connection block movable groove, the load-bearing plate sliding groove and the limit block movable groove to complete the fixation of the wheel connection block, and there is no need to use a screwdriver for installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1This is a schematic diagram of the structure of a straight-grain wheel cart part that is easy to disassemble and assemble proposed by the utility model;

[0017] Figure 2 This is a structural schematic diagram of a load-bearing plate portion of a straight-grain wheel that is easy to disassemble and assemble, as proposed by the utility model;

[0018] Figure 3 This is a structural schematic diagram of a cross-sectional view of a wheel connection block of a straight-grain wheel that is easy to disassemble and assemble proposed by the utility model;

[0019] Figure 4 This is a schematic structural diagram of a limit plate portion of a straight-grain wheel that is easy to disassemble and assemble, as proposed by the utility model;

[0020] Figure 5 The utility model is a structural schematic diagram of a cross-sectional view of a load-bearing plate of a straight-grain wheel that is easy to disassemble and assemble.

[0021] In the figure: 100, cart; 101, load-bearing plate; 102, wheel connecting block; 103, straight-grained wheel; 200, extrusion block; 201, handle; 202, limit block; 203, connecting block mounting slot; 204, limit slot; 300, connecting rod; 301, rotating shaft; 302, limit plate; 303, connecting block connecting slot; 304, load-bearing plate connecting slot; 305, torsion spring; 400, T-block; 401, sliding connecting block; 402, sliding rod; 403, T-slot; 404, connecting block movable slot; 405, load-bearing plate sliding slot; 406, limit block movable slot; 407, spring; 408, spring connecting block. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0023] Reference Figure 1-5A straight-grained wheel that is easy to disassemble and assemble is applied to a cart 100. A load-bearing plate 101 is fixedly installed on the cart 100. Four wheel connecting blocks 102 are movably installed on the bottom side of the load-bearing plate 101. Straight-grained wheels 103 are movably installed on the bottom sides of the four wheel connecting blocks 102. Connecting structures are slidably installed on the four wheel connecting blocks 102. Two connecting rods 300 are fixedly installed on the four wheel connecting blocks 102. Fixed structures are rotatably installed on the eight connecting rods 300. Eight T-blocks 400 are slidably installed on the load-bearing plate 101. Limited structures are fixedly installed on the eight T-blocks 400. When the straight-grained wheel 103 needs to be replaced, the sliding connecting block 401 is pulled outward to allow the pulled sliding connecting block 40 1 drives the T-block 400 to slide in the T-slot 403 provided on the load-bearing plate 101, and the sliding T-block 400 drives the sliding rod 402 to move and squeezes the spring 407 sleeved on the sliding rod 402. Under the action of the T-slot 403, the T-block 400 is prevented from being separated from the load-bearing plate 101 when sliding, so that the sliding sliding rod 402 is separated from the connecting block movable groove 404 and the limiting block movable groove 406, and slides in the bearing plate sliding groove 405, thereby releasing the restriction on the squeezing block 200. At this time, the handle 201 can be pulled outward, so that the pulled handle 201 drives the squeezing block 200 to slide in the connecting block installation groove 203, and at the same time, the moving squeezing block 200 drives the limiting block 202 The limit plate 302 is turned over in the connecting block mounting groove 203 through the torsion spring 305 connected to the inner wall of the connecting rod 300, so that the limit plate 302 drives the rotating shaft 301 to rotate in the connecting rod 300 and disengage from the connecting block connecting groove 303 opened on the wheel connecting block 102 and the load-bearing plate connecting groove 304 opened on the load-bearing plate 101. Entering the connecting block mounting groove 203 releases the connection between the load-bearing plate 101 and the wheel connecting block 102, and the wheel connecting block 102 can be removed from the load-bearing plate 101. The entire wheel connecting block 102 can be replaced. After completing the replacement of the wheel connecting block 102, the wheel connecting block 102 is reinserted into the load-bearing plate 101, and then the handle 201 is pushed to allow the handle 201 to drive the extrusion block 200 to squeeze the limiting plate 302, and reinsert it into the connecting block connecting groove 303 and the load-bearing plate connecting groove 304. At the same time, the limiting block movable groove 406 is aligned with the connecting block movable groove 404 and the load-bearing plate sliding groove 405, and then the pulled sliding connecting block 401 is released. Through the action of the T-block 400 and the spring 407 connected to the spring connecting block 408, the sliding rod 402 is reinserted into the connecting block movable groove 404 and the load-bearing plate sliding groove 405 to complete the fixation of the wheel connecting block 102.

[0024] Furthermore, the connection includes an extrusion block 200, which is slidably mounted on the wheel connecting block 102, and a handle 201 is fixedly mounted on one end of the extrusion block 200, and limit blocks 202 are fixedly mounted on both sides of the extrusion block 200, thereby releasing the restriction on the extrusion block 200. At this time, the handle 201 can be pulled outward to allow the pulled handle 201 to drive the extrusion block 200 to slide in the connecting block mounting groove 203, and at the same time, the moving extrusion block 200 drives the limit block 202 to translate in the limit groove 204, thereby preventing the extrusion block 200 from moving when moving. When the moving extrusion block 200 is not in contact with the limit plate 302, the limit plate 302 is moved in the connecting block mounting groove through the torsion spring 305 connected to the limit plate 302 and the inner wall of the connecting rod 300. The wheel connecting block 102 is flipped in the connecting rod 300, so that the limiting plate 302 drives the rotating shaft 301 to rotate in the connecting rod 300 and disengages from the connecting block connecting groove 303 provided on the wheel connecting block 102 and the load-bearing plate connecting groove 304 provided on the load-bearing plate 101, and enters the connecting block installation groove 203 to release the connection between the load-bearing plate 101 and the wheel connecting block 102. The wheel connecting block 102 can be removed from the load-bearing plate 101, and the entire wheel connecting block 102 can be replaced. After the wheel connecting block 102 is replaced, the wheel connecting block 102 is reinserted into the load-bearing plate 101, and then the handle 201 is pushed, so that the handle 201 drives the extrusion block 200 to squeeze the limiting plate 302, and reinserted into the connecting block connecting groove 303 and the load-bearing plate connecting groove 304.

[0025] Furthermore, a connecting block mounting groove 203 is provided on the wheel connecting block 102, and the extrusion block 200 is slidably installed in the connecting block mounting groove 203. A limiting groove 204 is provided on the wheel connecting block 102, and the limiting block 202 is slidably installed in the limiting groove 204. The pulled handle 201 drives the extrusion block 200 to slide in the connecting block mounting groove 203, and the moving extrusion block 200 drives the limiting block 202 to translate in the limiting groove 204, thereby preventing the extrusion block 200 from moving when moving.

[0026] Furthermore, the fixed structure includes a rotating shaft 301, which is rotatably mounted on the inner wall of the connecting rod 300, and the connecting rod 300 is fixedly mounted on the inner wall of the connecting block mounting groove 203. A limiting plate 302 is fixedly mounted on the rotating shaft 301, and the limiting plate 302 contacts the extrusion block 200. A torsion spring 305 is fixedly sleeved on the rotating shaft 301, and one end of the torsion spring 305 is fixedly mounted on the inner wall of the connecting rod 300, and the other end of the torsion spring 305 is fixedly mounted on the limiting plate 302. When the moving extrusion block 200 is not in contact with the limiting plate 302, the limiting plate 302 is in contact with the extrusion block 200. The torsion spring 305 connected to the inner wall of the connecting rod 300 allows the limit plate 302 to flip over in the connecting block mounting groove 203, so that the limit plate 302 drives the rotating shaft 301 to rotate in the connecting rod 300 and disengage from the connecting block connecting groove 303 opened on the wheel connecting block 102 and the load-bearing plate connecting groove 304 opened on the load-bearing plate 101. Entering into the connecting block mounting groove 203 releases the connection between the load-bearing plate 101 and the wheel connecting block 102, and the wheel connecting block 102 can be removed from the load-bearing plate 101, and the entire wheel connecting block 102 can be replaced.

[0027] Furthermore, a connecting block connecting groove 303 is provided on the wheel connecting block 102, and the limit plate 302 is movably installed in the connecting block connecting groove 303. A bearing plate connecting groove 304 is provided on the load-bearing plate 101, and the limit plate 302 is movably installed in the bearing plate connecting groove 304. When the moving extrusion block 200 is not in contact with the limit plate 302, the limit plate 302 is turned over in the connecting block installation groove 203 through the torsion spring 305 connected to the inner wall of the limiting plate 302 and the connecting rod 300, so that the limit plate 302 drives the rotating shaft 301 to rotate in the connecting rod 300 and disengages from the connecting block connecting groove 303 provided on the wheel connecting block 102 and the load-bearing plate connecting groove 304 provided on the load-bearing plate 101.

[0028] Furthermore, the limiting structure includes a sliding connection block 401, which is fixedly mounted on one end of the T-block 400, a sliding rod 402 is fixedly mounted on the T-block 400, and a spring connection block 408 is slidably mounted on the sliding rod 402. The sliding connection block 401 is pulled outward, so that the pulled sliding connection block 401 drives the T-block 400 to slide in the T-slot 403 opened on the load-bearing plate 101, and the sliding T-block 400 drives the sliding rod 402 to move while squeezing the spring 407 sleeved on the sliding rod 402. Under the action of the T-slot 403, the T-block 400 is prevented from detaching from the load-bearing plate 101 when sliding, thereby allowing the sliding sliding rod 402 to detach from the connecting block movable groove 404 and the limiting block movable groove 406, and slide in the load-bearing plate sliding groove 405, thereby releasing the restriction on the extrusion block 200.

[0029] Furthermore, the load-bearing plate 101 is provided with a T-slot 403, in which the T-block 400 is slidably installed, and the spring connecting block 408 is fixedly installed on the inner wall of the T-slot 403. The wheel connecting block 102 is provided with a connecting block movable groove 404, in which the sliding rod 402 is movably installed, and the load-bearing plate 101 is provided with a load-bearing plate sliding groove 405, in which the sliding rod 402 is slidably installed, and the limit block 202 is provided with a limit block movable groove 406, and the sliding rod 402 is movably installed in the limit block movable groove 406. Under the action of the T-slot 403, the T-block 400 is prevented from detaching from the load-bearing plate 101 when sliding, so that the sliding sliding rod 402 detaches from the connecting block movable groove 404 and the limit block movable groove 406, and slides in the load-bearing plate sliding groove 405, thereby releasing the restriction on the extrusion block 200.

[0030] Furthermore, a spring 407 is slidably sleeved on the sliding rod 402, and both ends of the spring 407 are respectively fixedly mounted on the side where the T-block 400 and the spring connecting block 408 are close to each other. The wheel connecting block 102 is reinserted into the load-bearing plate 101, and then the handle 201 is pushed to allow the handle 201 to drive the extrusion block 200 to squeeze the limiting plate 302. At the same time, the movable groove 406 of the limiting block is aligned with the movable groove 404 of the connecting block and the sliding groove 405 of the load-bearing plate, and then the pulled sliding connecting block 401 is released. The sliding rod 402 is reinserted into the movable groove 404 of the connecting block and the sliding groove 405 of the load-bearing plate through the action of the spring 407 connected to the T-block 400 and the spring connecting block 408, thereby completing the fixation of the wheel connecting block 102.

[0031] Working principle of this utility model:

[0032] When the straight-grained wheel 103 needs to be replaced, the sliding connecting block 401 is pulled outward to allow the pulled sliding connecting block 401 to drive the T-block 400 to slide in the T-slot 403 provided on the load-bearing plate 101. The sliding T-block 400 drives the sliding rod 402 to move and squeezes the spring 407 sleeved on the sliding rod 402. Under the action of the T-slot 403, the T-block 400 is prevented from being separated from the load-bearing plate 101 when sliding, so that the sliding sliding rod 402 is separated from the connecting block movable groove 404 and the limiting block movable groove 406, and slides on the load-bearing plate. The extrusion block 200 slides in the movable groove 405 to release the restriction on the extrusion block 200. At this time, the handle 201 can be pulled outward to allow the pulled handle 201 to drive the extrusion block 200 to slide in the connecting block installation groove 203. At the same time, the moving extrusion block 200 drives the limit block 202 to translate in the limit groove 204 to prevent the extrusion block 200 from moving when moving. When the moving extrusion block 200 does not contact the limit plate 302, the limit plate 302 is connected to the inner wall of the connecting rod 300 through the torsion spring 305. The rotation is realized inside, so that the limiting plate 302 drives the rotating shaft 301 to rotate inside the connecting rod 300 and disengages from the connecting block connecting groove 303 opened on the wheel connecting block 102 and the load-bearing plate connecting groove 304 opened on the load-bearing plate 101, and enters the connecting block installation groove 203 to release the connection between the load-bearing plate 101 and the wheel connecting block 102. The wheel connecting block 102 can be removed from the load-bearing plate 101, and the entire wheel connecting block 102 can be replaced. After completing the replacement of the wheel connecting block 102, the wheel connecting block 102 is reinserted into the load-bearing plate 101, and then push the handle 201 to let the handle 201 drive the extrusion block 200 to squeeze the limit plate 302, and reinsert it into the connecting block connecting groove 303 and the load-bearing plate connecting groove 304, and at the same time, put the limiting block movable groove 406 against the connecting block movable groove 404 and the load-bearing plate sliding groove 405, release the pulled sliding connecting block 401, and reinsert the sliding rod 402 into the connecting block movable groove 404 and the load-bearing plate sliding groove 405 through the action of the T-block 400 and the spring 407 connected to the spring connecting block 408, thereby completing the fixation of the wheel connecting block 102.

[0033] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A straight-grained wheel that is easy to disassemble and assemble, applied to a cart (100), characterized in that: The cart (100) is fixedly mounted with a load-bearing plate (101), four wheel connection blocks (102) are movably mounted on the bottom side of the load-bearing plate (101), straight-grained wheels (103) are movably mounted on the bottom sides of the four wheel connection blocks (102), connection structures are slidably mounted on the four wheel connection blocks (102), two connection rods (300) are fixedly mounted on the four wheel connection blocks (102), and fixed structures are rotatably mounted on the eight connection rods (300), eight T-shaped blocks (400) are slidably mounted on the load-bearing plate (101), and limited position structures are fixedly mounted on the eight T-shaped blocks (400), and the connection includes an extrusion block (200), the extrusion block (200) is slidably mounted on the wheel connection block (102), a handle (201) is fixedly mounted on one end of the extrusion block (200), and limited position blocks (203) are fixedly mounted on both sides of the extrusion block (200). 202), a connecting block installation groove (203) is provided on the wheel connecting block (102), the extrusion block (200) is slidably installed in the connecting block installation groove (203), a limiting groove (204) is provided on the wheel connecting block (102), the limiting block (202) is slidably installed in the limiting groove (204), the fixed structure comprises a rotating shaft (301), the rotating shaft (301) is rotatably installed on the inner wall of the connecting rod (300), the connecting rod (300) is fixedly installed on the inner wall of the connecting block installation groove (203), a limiting plate (302) is fixedly installed on the rotating shaft (301), the limiting plate (302) is in contact with the extrusion block (200), and a torsion spring (305) is fixedly sleeved on the rotating shaft (301), one end of the torsion spring (305) is fixedly installed on the inner wall of the connecting rod (300), and the other end of the torsion spring (305) is fixedly installed on the limiting plate (302).

2. The straight-grain wheel that is easy to assemble and disassemble according to claim 1, characterized in that: The wheel connecting block (102) is provided with a connecting block connecting groove (303), the limiting plate (302) is movably installed in the connecting block connecting groove (303), the bearing plate (101) is provided with a bearing plate connecting groove (304), and the limiting plate (302) is movably installed in the bearing plate connecting groove (304).

3. The straight-grain wheel that is easy to disassemble and assemble according to claim 1, characterized in that: The limiting structure comprises a sliding connection block (401), the sliding connection block (401) is fixedly mounted on one end of a T-shaped block (400), a sliding rod (402) is fixedly mounted on the T-shaped block (400), and a spring connection block (408) is slidably mounted on the sliding rod (402).

4. The straight-grain wheel that is easy to assemble and disassemble according to claim 1, characterized in that: The load-bearing plate (101) is provided with a T-shaped groove (403), the T-shaped block (400) is slidably installed in the T-shaped groove (403), the spring connecting block (408) is fixedly installed on the inner wall of the T-shaped groove (403), the wheel connecting block (102) is provided with a connecting block movable groove (404), the sliding rod (402) is movably installed in the connecting block movable groove (404), the load-bearing plate (101) is provided with a load-bearing plate sliding groove (405), the sliding rod (402) is slidably installed in the load-bearing plate sliding groove (405), the limit block (202) is provided with a limit block movable groove (406), and the sliding rod (402) is movably installed in the limit block movable groove (406).

5. The straight-grain wheel that is easy to assemble and disassemble according to claim 3, characterized in that: A spring (407) is slidably sleeved on the sliding rod (402), and two ends of the spring (407) are respectively fixedly mounted on the side where the T-shaped block (400) and the spring connecting block (408) are close to each other.

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