Pneumatic hydraulic jack for dismounting aircraft tire

Abstract

The utility model relates to the technical field of aircraft tire processing, and discloses a pneumatic hydraulic jack for aircraft tire disassembly, which comprises a device body, four universal wheels are fixedly arranged on the bottom surface of the device body and are uniformly distributed on the bottom surface of the periphery of the device body, and the universal wheels are arranged on the bottom surface of the device body. An operating mechanism is fixedly arranged in the device body, and a clamping mechanism is fixedly arranged on the side face of the device body. The operating mechanism comprises an operating part and a connecting part; the bottom surface of the connecting part is fixedly connected with the top surface of the operating part; the operation part comprises a small piston, and the side face of the small piston is in friction sliding connection with the inner wall of the right end of the device body. The clamping mechanism is arranged, and a hydraulic rod and a clamping plate are arranged to work cooperatively, so that the aircraft tire can be quickly fixed and clamped when the aircraft tire is disassembled, and the safety problem caused by the fact that the tire falls off due to the fact that the aircraft tire cannot be stressed when the aircraft tire is jacked up and disassembled is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of aviation tire processing, in particular to a pneumatic hydraulic jack for disassembling aviation tires. Background Art

[0002] The pneumatic jack is equipped with a stabilizing cylinder inside to ensure the stability and firmness of the positioning, which can prevent the swinging movement of the jack to the greatest extent; at the same time, a double safety valve is used to prevent excessive expansion and uncontrolled deflation, which is far safer than traditional jacks.

[0003] A Chinese patent discloses a portable adjustable pneumatic hydraulic jack, with the authorization announcement number CN213011746U, which includes a jack body and a grip rod movably connected to the jack body. The grip rod is a hollow structure, and an air supply pipeline is inserted into the grip rod. One end of the air supply pipeline is connected to the jack body, and the other end is connected to a voltage regulating and stabilizer. The voltage regulating and stabilizer can be detachably installed on the grip rod, which can effectively increase the adjustable height range of the pressure-bearing device and make it more applicable.

[0004] However, there are still the following disadvantages: the portable adjustable pneumatic hydraulic jack cannot quickly fix and clamp the tire during the aircraft tire removal operation, which can easily cause the tire to fall during removal, affecting work safety. Therefore, it is urgent to design a pneumatic hydraulic jack for aircraft tire removal. Utility Model Content

[0005] The utility model aims to provide a pneumatic hydraulic jack for disassembling aircraft tires to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a pneumatic hydraulic jack for removing aircraft tires comprises a device body, a universal wheel is fixedly arranged on the bottom surface of the device body, the number of the universal wheels is four and they are evenly distributed on the bottom surface around the device body, an operating mechanism is fixedly arranged inside the device body, and a clamping mechanism is fixedly arranged on the side of the device body;

[0007] The operating mechanism comprises an operating portion and a connecting portion, wherein the bottom surface of the connecting portion and the top surface of the operating portion are fixedly connected;

[0008] The operating part comprises a small piston, the side surface of the small piston is frictionally and slidingly connected to the inner wall of the right end of the device body;

[0009] The clamping mechanism comprises a clamping part and a power part, and the side surface of the power part and the side surface of the clamping part are fixedly connected;

[0010] The power unit comprises a fixing frame, and a hydraulic rod is fixedly arranged on the outer side surface of the top end of the fixing frame.

[0011] Preferably, a connecting block is fixedly provided on the top surface of the small piston, a push rod is sleeved inside the connecting block, the inside of the push rod and the inner wall of the connecting block are hinged by a hinge rod, and a fixing block is fixedly provided on the back of the right end of the device body.

[0012] Preferably, a connecting plate is provided inside the back end of the push rod and inside the fixed block, and the upper and lower ends of the connecting plate are respectively hinged to the inner wall of the back end of the push rod and the inner wall of the fixed block by two hinged rods.

[0013] Preferably, two liquid channels are fixedly provided on the inner walls of the upper and lower ends of the device body, two springs are fixedly provided on the outer inner walls of the two liquid channels, two blocking balls are fixedly provided on the outer sides of the two springs, and the sides of the two blocking balls are in sealing frictional sliding contact with the inner walls of the two liquid channels respectively.

[0014] Preferably, a large piston is provided on the inner wall of the left end of the device body, the side of the large piston is frictionally and slidingly connected to the inner wall of the device body, an extended top block is provided inside the large piston, and the inner wall of the large piston and the surface of the extended top block are threadedly connected.

[0015] Preferably, the side surfaces of the device body are respectively fixedly connected to the inner sides of the two fixing frames, the inner side surface of the hydraulic rod output rod passes through the outer side surface of the fixing frame and extends to the inside of the fixing frame, and a clamping plate is fixedly provided on the inner side surface of the hydraulic rod output rod.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] 1. The pneumatic hydraulic jack for aircraft tire removal is provided with a clamping mechanism, and the cooperation of the hydraulic rod and the clamping plate enables the aircraft tire to be quickly fixed and clamped during the aircraft tire removal work, so that when the aircraft tire is lifted and removed, the tire will not fall off due to the lack of force, causing safety problems;

[0018] 2. The pneumatic hydraulic jack for disassembling aircraft tires is provided with an operating mechanism, and is provided with a push rod and a small piston to work together. The large piston is pushed upward by the action of the hydraulic pressure difference, thereby completing the operation of the jack, so that when disassembling the aircraft tire, less force can be used to complete the disassembly, thereby improving the work efficiency;

[0019] 3. The pneumatic hydraulic jack for aircraft tire removal is equipped with a spring and a blocking ball to form a one-way valve to block the oil groove inside the device body. When the oil flows, it can quickly switch according to the movement of the small piston and the large piston, and the operation is fully automated. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1It is a three-dimensional schematic diagram of the front structure of the utility model;

[0021] Figure 2 It is a three-dimensional cross-sectional schematic diagram of the front structure of the utility model;

[0022] Figure 3 It is a three-dimensional schematic diagram of the back structure of the utility model;

[0023] Figure 4 For this utility model Figure 2 A three-dimensional enlarged schematic diagram of the structure of area A in the middle.

[0024] In the figure: 1. device body; 2. universal wheel; 3. operating mechanism; 301. small piston; 302. connecting block; 303. fixing block; 304. connecting plate; 305. pushing rod; 306. large piston; 307. spring; 308. blocking ball; 309. extended top block; 4. clamping mechanism; 401. fixing frame; 402. hydraulic rod; 403. clamping plate. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] Embodiment 1

[0027] See also Figure 1-Figure 4 As shown, a pneumatic hydraulic jack for disassembling an aircraft tire comprises a device body 1, a universal wheel 2 is fixedly arranged on the bottom surface of the device body 1, a parking rod is arranged inside the universal wheel 2, there are four universal wheels 2 and they are evenly distributed on the bottom surface around the device body 1, an operating mechanism 3 is fixedly arranged inside the device body 1, and a clamping mechanism 4 is fixedly arranged on the side of the device body 1; the operating mechanism 3 comprises an operating part and a connecting part, and the bottom surface of the connecting part is fixedly connected to the top surface of the operating part; the operating part comprises a small piston 301, and the side surface of the small piston 301 is frictionally and slidably connected to the inner wall of the right end of the device body 1; the clamping mechanism 4 comprises a clamping part and a power part, and the side surface of the power part is fixedly connected to the side surface of the clamping part; the power part comprises a fixing frame 401, the fixing frame 401 is L-shaped, and a hydraulic rod 402 is fixedly arranged on the outer side surface of the top of the fixing frame 401;

[0028] During operation, the device body 1 is moved to the position where the aircraft tire is required to be disassembled by the four universal wheels 2, the left end of the device body 1 is moved below the aircraft tire, and the two hydraulic rods 402 are started to make the two clamping plates 403 move toward each other.

[0029] Further, a connecting block 302 is fixedly arranged on the top surface of the small piston 301, a push rod 305 is sleeved inside the connecting block 302, the front of the push rod 305 is cylindrical, which is convenient for the staff to hold, the inside of the push rod 305 and the inner wall of the connecting block 302 are hinged by a hinge rod, and a fixing block 303 is fixedly arranged on the back of the right end of the device body 1;

[0030] During operation, the push rod 305 drives the small piston 301 to move up and down through the hinge effect of the connecting block 302 and the push rod 305 and the hinge effect of the connecting plate 304 and the fixed block 303 .

[0031] Furthermore, a connecting plate 304 is provided inside the back end of the push rod 305 and inside the fixed block 303, and the upper and lower ends of the connecting plate 304 are respectively hinged to the inner wall of the back end of the push rod 305 and the inner wall of the fixed block 303 by two hinge rods;

[0032] During operation, the staff holds the front end of the push rod 305 and pushes it up and down reciprocatingly. Through the hinge effect of the connecting block 302 and the push rod 305, and the hinge effect of the connecting plate 304 and the fixed block 303, the push rod 305 drives the small piston 301 to move up and down.

[0033] Furthermore, two liquid channels are fixedly provided on the inner walls of the upper and lower ends of the device body 1, two springs 307 are fixedly provided on the outer inner walls of the two liquid channels, two blocking balls 308 are fixedly provided on the outer sides of the two springs 307, and the size of the blocking balls 308 is the same as the size of the inner walls of the liquid channels. The sides of the two blocking balls 308 are in sealing friction and sliding contact with the inner walls of the two liquid channels respectively.

[0034] During operation, when the push rod 305 is pushed downward, the pressure generated matches the oil pressure inside the device body 1 and squeezes the spring 307 , so that the blocking ball 308 no longer blocks the internal channel of the device body 1 .

[0035] Furthermore, a large piston 306 is provided on the inner wall of the left end of the device body 1, an oil chamber is fixedly opened inside the device body 1, the side of the large piston 306 is frictionally and slidably connected with the inner wall of the device body 1, an extended top block 309 is provided inside the large piston 306, and the inner wall of the large piston 306 and the surface of the extended top block 309 are threadedly connected;

[0036] During operation, the blocking ball 308 no longer blocks the internal passage of the device body 1, so that the pressure pushes up the large piston 306 to move upward, thereby quickly disassembling the aircraft tire and the connecting parts.

[0037] Furthermore, the side surfaces of the device body 1 are respectively fixedly connected to the inner surfaces of the two fixing frames 401, the inner surface of the output rod of the hydraulic rod 402 penetrates the outer surface of the fixing frame 401 and extends to the inside of the fixing frame 401, and the inner surface of the output rod of the hydraulic rod 402 is fixedly provided with a clamping plate 403, and the clamping plate 403 is slightly arc-shaped;

[0038] During operation, the two hydraulic rods 402 are activated to make the two clamping plates 403 move toward each other, thereby quickly and slightly clamping the left and right ends of the aircraft tire.

[0039] Working principle: When in use, first move the device body 1 to the position where the aircraft tire needs to be disassembled through the four universal wheels 2, move the left end of the device body 1 to the bottom of the aircraft tire, start the two hydraulic rods 402, so that the two clamping plates 403 move in opposite directions, so as to quickly and slightly clamp the left and right ends of the aircraft tire, and the staff holds the front end of the push rod 305 and pushes it up and down reciprocatingly. Through the hinge effect of the connecting block 302 and the push rod 305, and the hinge effect of the connecting plate 304 and the fixed block 303, the push rod 305 drives the small piston 301 to move up and down. When it moves downward, the pressure generated cooperates with the internal oil pressure of the device body 1 and squeezes the spring 307, so that the blocking ball 308 no longer blocks the internal channel of the device body 1, so that the pressure pushes the large piston 306 to move upward, thereby quickly disassembling the aircraft tire and the connecting parts. When the height is not enough, the top block 309 can be extended by rotation to make the large piston 306 higher.

[0040] The above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, similar improvement, etc. made within the theoretical and principle content of the utility model shall be included in the protection scope of the utility model.

Claims

1. A pneumatic hydraulic jack for removing aircraft tires, comprising a device body (1), characterized in that: The bottom surface of the device body (1) is fixedly provided with universal wheels (2), the number of the universal wheels (2) is four and they are evenly distributed around the bottom surface of the device body (1), an operating mechanism (3) is fixedly provided inside the device body (1), and a clamping mechanism (4) is fixedly provided on the side surface of the device body (1); The operating mechanism (3) comprises an operating portion and a connecting portion, wherein the bottom surface of the connecting portion and the top surface of the operating portion are fixedly connected; The operating part comprises a small piston (301), the side surface of the small piston (301) is frictionally and slidably connected to the inner wall of the right end of the device body (1); The clamping mechanism (4) comprises a clamping portion and a power portion, and a side surface of the power portion and a side surface of the clamping portion are fixedly connected; The power unit comprises a fixing frame (401), and a hydraulic rod (402) is fixedly arranged on the outer side surface of the top end of the fixing frame (401).

2. The pneumatic hydraulic jack for removing aircraft tires according to claim 1, characterized in that: A connecting block (302) is fixedly arranged on the top surface of the small piston (301), a push rod (305) is sleeved inside the connecting block (302), the inside of the push rod (305) and the inner wall of the connecting block (302) are hinged by a hinge rod, and a fixing block (303) is fixedly arranged on the back of the right end of the device body (1).

3. The pneumatic hydraulic jack for removing aircraft tires according to claim 2, characterized in that: A connecting plate (304) is provided inside the back end of the push rod (305) and inside the fixed block (303); the upper and lower ends of the connecting plate (304) are respectively hinged to the inner wall of the back end of the push rod (305) and the inner wall of the fixed block (303) by two hinge rods.

4. The pneumatic hydraulic jack for removing aircraft tires according to claim 1, characterized in that: Two liquid channels are fixedly provided on the inner walls of the upper and lower ends of the device body (1), two springs (307) are fixedly provided on the outer inner walls of the two liquid channels, two blocking balls (308) are fixedly provided on the outer side surfaces of the two springs (307), and the side surfaces of the two blocking balls (308) are in sealing frictional sliding contact with the inner walls of the two liquid channels.

5. The pneumatic hydraulic jack for removing aircraft tires according to claim 1, characterized in that: A large piston (306) is arranged on the inner wall of the left end of the device body (1), and the side of the large piston (306) is frictionally and slidingly connected to the inner wall of the device body (1). An extended top block (309) is arranged inside the large piston (306), and the inner wall of the large piston (306) and the surface of the extended top block (309) are threadedly connected.

6. The pneumatic hydraulic jack for removing aircraft tires according to claim 5, characterized in that: The side surfaces of the device body (1) are respectively fixedly connected to the inner side surfaces of the two fixing frames (401); the inner side surface of the output rod of the hydraulic rod (402) penetrates the outer side surface of the fixing frame (401) and extends to the inside of the fixing frame (401); and a clamping plate (403) is fixedly arranged on the inner side surface of the output rod of the hydraulic rod (402).

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