CN111923667A

CN111923667A - Tire dismounting tool

Info

Publication number: CN111923667A
Application number: CN202010854994.9A
Authority: CN
Inventors: 向未; 黄子福; 梁星蜜
Original assignee: Hunan Jiexi Heavy Industry Co ltd
Current assignee: Hunan Jiexi Heavy Industry Co ltd
Priority date: 2020-08-21
Filing date: 2020-08-21
Publication date: 2020-11-13

Abstract

The invention discloses a tire dismounting tool which comprises an ejector rod, a handle connected to the ejector rod and a back hook assembly, wherein one end of the back hook assembly is in threaded connection with the ejector rod, one end of the ejector rod, which is far away from the handle, is abutted against a tire shaft, the other end of the back hook assembly hooks a tire, the handle is rotated, and the back hook assembly moves in a direction far away from the tire under the driving of the ejector rod. The tire dismounting tool disclosed by the invention is in threaded connection with the ejector rod through one end of the back hook assembly, the tire is hooked by the other end of the back hook assembly, the ejector rod is rotated by rotating the handle, the back hook assembly moves in the direction away from the tire under the driving of the ejector rod so as to pull the tire out of the tire shaft, the tire cannot be damaged, the tire can be dismounted only by rotating the handle with smaller force, the convenience and the rapidness are realized, the operation efficiency is high, the potential safety hazard is effectively reduced, and the labor intensity of workers can be greatly reduced.

Description

Tire dismounting tool

Technical Field

The invention relates to the technical field of engineering machinery manufacturing, in particular to a tire dismounting tool.

Background

The scissor-fork type lifting platform is special equipment for high-altitude operation, which can be vertically lifted and has wide indoor and outdoor application. The device can be widely used for equipment maintenance, indoor and outdoor mechanical installation, equipment maintenance and building maintenance of stations, wharfs, bridges, halls and factory buildings.

At present, it is necessary to replace or repair tyres in the case of wear or damage to the tyres in (self-) scissor (aerial work platform) series products. The method of manually striking the tire with a hammer for removing the tire has the following disadvantages: 1. easily causes deformation or damage of the shaft on which the tire is mounted. 2. Manual tapping consumes time and effort and is inefficient. 3. Potential safety hazards exist in the disassembling process.

Disclosure of Invention

In order to solve the technical problems, embodiments of the present invention provide a tire dismounting tool that does not damage a tire, is easy to dismount, has high operation efficiency, and is safe to operate.

The technical scheme of the invention is realized as follows:

the utility model provides a frock is dismantled to tire, include the ejector pin, connect in the handle of ejector pin and one end with the subassembly is colluded through threaded connection's the returning of ejector pin, the ejector pin is kept away from the one end and the mutual butt of tire axle of handle, the other end that colludes the subassembly back hooks the tire, the rotating the handle under the drive of ejector pin, the returning colludes the direction motion of subassembly toward keeping away from the tire.

Preferably, the back-hooking component comprises a shaft sleeve connecting plate, a transition connecting plate and a hooking plate, the shaft sleeve connecting plate is in threaded connection with the ejector rod, and the shaft sleeve connecting plate is fixedly connected with the hooking plate through the transition connecting plate.

Preferably, the hook plates are a plurality of, and each hook plate is circumferentially and evenly distributed around the shaft sleeve connecting plate, and the hook plates are connected with the shaft sleeve connecting plate through the transition connecting plate.

Preferably, the number of the hook plates is two, the number of the transition connecting plates is two, and the two transition connecting plates are rotatably connected with the two hook plates through fasteners respectively.

Preferably, one end of the hook plate is hooked back, and the other end of the hook plate is bent and extended to form a stopping portion, and the stopping portion is clamped between the two transition connecting plates and is in contact with the end portion of the shaft sleeve connecting plate.

Preferably, the hook plate is formed by integral casting.

Preferably, the fastener is a pin shaft, and a cotter pin is inserted into the pin shaft.

Preferably, the ejector rod is provided with a mounting hole, and the handle penetrates through the mounting hole to be connected to the ejector rod.

Preferably, the handle is in the shape of a round rod, one end of the handle is provided with a nut, and the other end of the handle is connected with a stop head with a diameter larger than that of the handle.

Preferably, the end part of the ejector rod is provided with a connector with a diameter larger than that of the ejector rod, one end of the ejector rod is threaded, and the other end of the ejector rod is a smooth outer surface.

The tire dismounting tool provided by the embodiment of the invention is in threaded connection with the ejector rod through one end of the back hook component, the tire is hooked by the other end of the back hook component, the ejector rod is rotated by rotating the handle, the back hook component moves in the direction away from the tire under the driving of the ejector rod so as to pull the tire out of the tire shaft, the tire cannot be damaged, the tire can be dismounted only by rotating the handle with small force, the convenience and rapidness are realized, the operation efficiency is high, the potential safety hazard is effectively reduced, and the labor intensity of workers can be greatly reduced.

Drawings

FIG. 1 is an assembly view of a tire removal tool and a tire according to the present invention;

fig. 2 is a schematic structural view of the tire dismounting tool shown in fig. 1.

Detailed Description

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

Please refer to fig. 1, wherein fig. 1 is an assembly view of a tire dismounting tool and a tire according to the present invention; fig. 2 is a schematic structural view of the tire dismounting tool shown in fig. 1. This frock is dismantled to tire includes ejector pin 1, connect in handle 3 and the one end of ejector pin 1 with ejector pin 1 colludes subassembly 5 through threaded connection's the returning, ejector pin 1 is kept away from the one end and the tire axle butt of handle 3, the other end that colludes subassembly 5 back hooks tire 10, the rotation handle 3 makes ejector pin 1 is rotatory under the drive of ejector pin 1, thereby collude subassembly 5 back and pull out tire 10 from the tire axle toward the direction motion of keeping away from tire 10, can not cause the damage to tire 10, only need use less strength to rotate handle 3 just can unload tire 10, convenient and fast, operating efficiency are high, have reduced the potential safety hazard effectively, can reduce workman intensity of labour by a wide margin.

The end part of the ejector rod 1 is provided with a connector 11 with a diameter larger than that of the ejector rod 1, one end of the ejector rod 1 is threaded, and the other end of the ejector rod 1 is a smooth outer surface. The connector 11 is provided with a mounting hole, the handle 3 penetrates through the mounting hole to be connected to the ejector rod 1, and when the handle 3 applies rotating external force, the connector 11 can effectively increase the connection strength of the ejector rod 1 and the handle 3.

The handle 3 is connected to the top bar 1 and applies external force to the top bar 1 to rotate the top bar 1. The handle 3 is round bar-shaped, one end of the handle 3 is provided with a nut 31, and the other end is connected with a stopper 33 with a diameter larger than the handle 3, so as to prevent the handle 3 from sliding out of the mounting hole.

The back hook assembly 5 comprises a shaft sleeve connecting plate 51, a transition connecting plate 53 and a hook plate 55, the ejector rod 1 penetrates through the shaft sleeve connecting plate 51, the shaft sleeve connecting plate 51 is connected with the ejector rod 1 through threads, and two ends of the shaft sleeve connecting plate 51 are fixedly connected with the hook plate 55 through the transition connecting plate 53. The shaft sleeve connecting plate 51 and the hook plate 55 are connected through the transition connecting plate 53, and the structure is simple and flexible.

The hook plates 55 are multiple, each hook plate 55 is circumferentially and uniformly distributed around the shaft sleeve connecting plate 51, and the hook plates 55 are connected with the shaft sleeve connecting plate 51 through the transition connecting plate 53. Thus, the plurality of hook plates 55 hook the tire at the same time, so that the connection stability with the tire can be improved. The hook plates 55 are arranged into an even number of blocks, wherein the hook plates 55 can be 2 blocks, 4 blocks or 6 blocks. Specifically, in this embodiment, the hook plates 55 are two, the transition connecting plates 53 are also two, and the two transition connecting plates 53 are rotatably connected to the hook plates 55 through the fasteners 7, respectively. Specifically, the fastener 7 is a pin shaft, and a cotter pin is inserted into the pin shaft and used for stopping and fixing the pin shaft to prevent the pin shaft from falling off.

One end of the hook plate 55 is hooked back, and the other end of the hook plate 55 is bent and extended to form a stopping portion 551, the stopping portion 551 is partially clamped between the two transition connecting plates 53 and is in contact with the end portion of the shaft sleeve connecting plate 51, and is used for limiting the opening angle of the hook plate 55 so that the hook plate 55 cannot be opened at a large angle infinitely, the clamping force of the hook plate 55 is guaranteed, the tire 10 can be hooked effectively, the tool is pulled out of the tire shaft, and after the tire 10 is disassembled, the handle 3 is rotated reversely, and the tool is taken out.

The hooking angle of the hooking plate 55 is within 95-100 degrees and approximately forms a right angle, and the hooking part of the hooking plate 55 hooks the tire to form good connection with the tire so as to pull out the tire. Specifically, in the present embodiment, the hook plate 55 is formed by integral casting, and the forming method is simple and low in cost.

The above description is only for the specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.

Claims

1. The utility model provides a frock is dismantled to tire, its characterized in that, include the ejector pin, connect in the handle of ejector pin and one end with the ejector pin through threaded connection's the subassembly of colluding back, the ejector pin is kept away from the one end and the mutual butt of tire axle of handle, the other end of colluding the subassembly back hooks the tire, the rotating the handle under the drive of ejector pin, the subassembly is colluded back and toward the direction motion of keeping away from the tire.

2. The tire disassembling tool according to claim 1, wherein the back hook assembly comprises a shaft sleeve connecting plate, a transition connecting plate and a hook plate, the shaft sleeve connecting plate is in threaded connection with the ejector rod, and the shaft sleeve connecting plate is fixedly connected with the hook plate through the transition connecting plate.

3. The tire disassembling tool according to claim 2, wherein the number of the hook plates is multiple, each hook plate is circumferentially and uniformly distributed around the shaft sleeve connecting plate, and the multiple hook plates are connected with the shaft sleeve connecting plate through the transition connecting plate.

4. The tire disassembling tool according to claim 3, wherein the number of the hook plates is two, the number of the transition connecting plates is two, and the two transition connecting plates and the two hook plates are rotatably connected through fasteners respectively.

5. The tire disassembling tool according to claim 2, wherein one end of the hook plate is hooked back, and the other end of the hook plate is bent and extended to form a stopping portion, and the stopping portion is clamped between the two transition connecting plates and is in contact with the end portions of the shaft sleeve connecting plates.

6. The tire disassembly tool of claim 2, wherein the hook plate is formed by integral casting.

7. The tire disassembly tool of claim 4, wherein the fastener is a pin, and a cotter pin is inserted on the pin.

8. The tire disassembling tool according to claim 1, wherein the ejector rod is provided with a mounting hole, and the handle penetrates through the mounting hole and is connected to the ejector rod.

9. The tire disassembling tool according to claim 1, wherein the handle is in a shape of a round bar, one end of the handle is provided with a nut, and the other end of the handle is connected with a stopper with a diameter larger than that of the handle.

10. The tire disassembling tool according to claim 1, wherein a connector with a diameter larger than that of the ejector rod is arranged at the end of the ejector rod, one end of the ejector rod is threaded, and the other end of the ejector rod is a smooth outer surface.