Hydraulic oil cylinder with leak-proof function

Abstract

The hydraulic oil cylinder with the leakage-proof function comprises a hydraulic oil cylinder body and a piston rod, the piston rod is arranged in the hydraulic oil cylinder body and extends to the outer portion of the hydraulic oil cylinder body, and a positioning frame is installed at the top end of the hydraulic oil cylinder body. A first oil pipe is installed at the top end of the hydraulic oil cylinder body on one side of the positioning frame, a second oil pipe is installed at the top end of the hydraulic oil cylinder body on the other side of the positioning frame, butt joint oil pipes are symmetrically installed in the positioning frame, and one ends of the butt joint oil pipes extend out of the positioning frame. According to the hydraulic oil cylinder, the flow speed of hydraulic oil can be conveniently controlled by the hydraulic oil cylinder, the pressure of the hydraulic oil can be conveniently observed, the hydraulic oil can be conveniently filtered to remove particle impurities, the filter element can be conveniently detached and replaced, the convenience of detaching and replacing the filter element is improved, and the service life of the filter element is prolonged. And the operation stability of the hydraulic oil cylinder is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to hydraulic cylinder technical field, concretely is a kind of hydraulic cylinder with anti-leakage function. BACKGROUND

[0002] The main function of hydraulic cylinder is to convert hydraulic energy into mechanical energy, to realize linear reciprocating motion or swing motion, in hydraulic transmission system, hydraulic cylinder is the core execution element, responsible for converting the pressure energy of liquid into mechanical energy, hydraulic cylinder has multiple structural forms, including piston type, plunger type, telescopic type and swing type, when using hydraulic cylinder, its inner diameter, stroke, working pressure and installation mode and other factors need to be considered, in addition, when the movement speed of hydraulic cylinder under load exceeds a certain limit value, hydraulic cylinder with buffer device or speed reducing valve is selected to be installed outside the hydraulic cylinder to ensure smooth movement.

[0003] As disclosed in a kind of authorized announcement No.CN221973968U with anti-leakage function's hydraulic cylinder, including cylinder body and movable plug, the inside of cylinder body is slidably connected with piston rod, the inside of piston rod is fixedly connected with movable plug, the surface of movable plug is slidably connected with the inner surface of cylinder body, the surface of movable plug is equipped with buffer assembly,

[0004] It is realized by being provided with filter assembly, so that hydraulic oil is filtered after passing through filter screen and enters the inside of cylinder body, avoids foreign matter to block the inside of cylinder body, causes hydraulic oil leakage, thereby effectively prevent the risk of hydraulic oil leakage, improve the service life of hydraulic cylinder, by being provided with buffer assembly, when movable plug slides left and right in the inside of cylinder body, under the influence of the elasticity of buffer spring itself, reduce the impact force of movable plug to the inner wall of cylinder body, improve the service life of device;

[0005] But it does not solve the existing such hydraulic cylinder when using generally not conducive to the convenient control of the flow rate of hydraulic oil, not convenient for the convenient observation of the pressure of hydraulic oil, not convenient for filtering and removing particulate impurities of hydraulic oil, not convenient for filter core to be conveniently disassembled and replaced, greatly affect the convenience of filter core disassembly and replacement, affect the stability of hydraulic cylinder when running. UTILITY MODEL CONTENTS

[0006] The utility model aims at providing a kind of hydraulic cylinder with anti-leakage function to solve the problem of the above background art that hydraulic cylinder is not convenient for the convenient control of the flow rate of hydraulic oil, not convenient for the convenient observation of the pressure of hydraulic oil, not convenient for filtering and removing particulate impurities of hydraulic oil, not convenient for filter core to be conveniently disassembled and replaced, affect the convenience of filter core disassembly and replacement, affect the stability of hydraulic cylinder when running.

[0007] To achieve the above object, the utility model provides the following technical scheme: A hydraulic oil cylinder with prevent leakage function, including hydraulic oil cylinder body and piston rod, the inside of hydraulic oil cylinder body is provided with piston rod, and piston rod extends to the outside of hydraulic oil cylinder body, the top of hydraulic oil cylinder body is installed with positioning frame, the top of hydraulic oil cylinder body of positioning frame one side is installed with first oil pipe, the top of hydraulic oil cylinder body of positioning frame other side is installed with second oil pipe, the inside of positioning frame is installed with butt joint oil pipe, the one end of butt joint oil pipe all extends to the outside of positioning frame, the one end of butt joint oil pipe away from positioning frame all is installed with filter valve, the one end of filter valve away from butt joint oil pipe all is installed with elbow, the one end of elbow away from filter valve all is installed with mechanical valve, the one end of mechanical valve away from elbow all is installed with three -way valve, and three -way valve is connected with first oil pipe, second oil pipe respectively, the top of three -way valve all is installed with hydraulic pressure table.

[0008] Preferably, the inside of the filter valve is provided with a liquid inlet chamber, and one end of the liquid inlet chamber extends to the outside of the filter valve.

[0009] Preferably, the inside of the filter valve is provided with a liquid inlet chamber, and one end of the liquid inlet chamber extends to the outside of the filter valve.

[0010] Preferably, the inside of the filter valve is provided with a filter core body, and one end of the liquid inlet chamber below the filter core body is provided with an adapter cover, and the adapter cover extends to the inside of the filter core body.

[0011] Preferably, the bottom end of the gland is provided with a sealing ring, and the gland is connected with the filter valve through the sealing ring.

[0012] Preferably, the inside wall of the gland is provided with internal threads, and the outside wall of the filter valve on one side of the internal threads is provided with external threads.

[0013] Preferably, the one end of the piston rod away from the hydraulic oil cylinder body is provided with an open sleeve, and the inside of the open sleeve is provided with a locking bolt.

[0014] Preferably, the inside of the open sleeve on one side of the locking bolt is provided with a positioning shaft, and both ends of the positioning shaft extend to the outside of the open sleeve.

[0015] Compared with the prior art, the utility model has the advantages that the hydraulic oil cylinder not only realizes the convenient control of the flow rate of the hydraulic oil, facilitates the convenient observation of the pressure of the hydraulic oil, facilitates the filtration of the hydraulic oil to remove particulate impurities, facilitates the convenient disassembly and replacement of the filter core, improves the convenience of disassembly and replacement of the filter core, and improves the stability of the hydraulic oil cylinder during operation.

[0016] The hydraulic oil is filtered by the filter element body in the filter valve, impurities in the hydraulic oil are removed, the hydraulic oil with dirt is prevented from entering the oil cavity in the hydraulic cylinder body to rub the inner wall, wear of the oil cavity in the hydraulic cylinder body is prevented, the function of preventing hydraulic oil leakage is achieved, the control of the flow rate of the hydraulic oil cylinder on the hydraulic oil is convenient, the pressure of the hydraulic oil is conveniently observed, the hydraulic oil is conveniently filtered to remove particulate impurities, and the stability of the hydraulic oil cylinder during operation is improved. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a three-dimensional structure schematic view of the hydraulic cylinder body of the utility model;

[0018] Figure 2 It is a three-dimensional structure schematic view of the hydraulic cylinder body of the utility model;

[0019] Figure 3 It is a front view structure schematic view of the utility model;

[0020] Figure 4 It is a three-dimensional structure schematic view of the utility model's hydraulic gauge;

[0021] Figure 5 It is a filter valve front view cross section structure schematic view of the utility model;

[0022] Figure 6 It is a filter element body three-dimensional structure explosion schematic view of the utility model.

[0023] In the drawing: 1, hydraulic cylinder body; 2, piston rod; 3, locking bolt; 4, opening sleeve; 5, positioning shaft; 6, positioning frame; 7, butt joint oil pipe; 8, filter valve; 9, elbow; 10, three-way valve; 11, mechanical valve; 12, hydraulic gauge; 13, first oil pipe; 14, second oil pipe; 15, liquid outlet cavity; 16, liquid inlet cavity; 17, adapter cover; 18, filter element body; 19, gland; 20, external thread; 21, sealing ring; 22, internal thread. DETAILED DESCRIPTION

[0024] The technical scheme in the embodiments of the utility model will be described clearly and completely in combination with the drawings in the embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without making creative labor belong to the protection scope of the utility model.

[0025] Referring to Figures 1-6 The utility model provides a kind of embodiment provided by the utility model: a kind of hydraulic cylinder with anti-leakage function, including hydraulic cylinder body 1 and piston rod 2, the inside of hydraulic cylinder body 1 is provided with piston rod 2, and piston rod 2 extends to the outside of hydraulic cylinder body 1, the top of hydraulic cylinder body 1 is equipped with positioning frame 6, the top of hydraulic cylinder body 1 of one side of positioning frame 6 is equipped with first oil pipe 13, the top of hydraulic cylinder body 1 of other side of positioning frame 6 is equipped with second oil pipe 14, the inside of positioning frame 6 is symmetrically equipped with butt joint oil pipe 7, one end of butt joint oil pipe 7 extends to the outside of positioning frame 6, the end of butt joint oil pipe 7 away from positioning frame 6 is equipped with filter valve 8, the end of filter valve 8 away from butt joint oil pipe 7 is equipped with elbow pipe 9, the end of elbow pipe 9 away from filter valve 8 is equipped with mechanical valve 11, the end of mechanical valve 11 away from elbow pipe 9 is equipped with three-way valve 10, and three-way valve 10 is connected with first oil pipe 13, second oil pipe 14 respectively, the top of three-way valve 10 is equipped with hydraulic gauge 12;

[0026] The inside of filter valve 8 is provided with liquid inlet chamber 16, and one end of liquid inlet chamber 16 extends to the outside of filter valve 8;

[0027] By the pipeline of outside and butt joint oil pipe 7 are connected, hydraulic oil is filtered by filter valve 8 and enters the inside of elbow pipe 9, is transported to the inside of three-way valve 10 by mechanical valve 11 from elbow pipe 9, is transported to the inside of hydraulic cylinder body 1 by first oil pipe 13, to control the telescopic movement of piston rod 2, hydraulic gauge 12 plays the role of pressure display, mechanical valve 11 plays the role of on-off control to hydraulic oil in pipeline, to facilitate the control of the speed of hydraulic oil flow, the filter element body 18 in the inside of filter valve 8 filters hydraulic oil, to remove the impurities in hydraulic oil, to prevent the hydraulic oil with dirt from entering the oil cavity in the inside of hydraulic cylinder body 1 and rubbing the inner wall, to prevent the oil cavity in the inside of hydraulic cylinder body 1 from being worn, to play the function of anti-leakage hydraulic oil, realizes the convenient control of the size of hydraulic oil flow rate of hydraulic cylinder, facilitates the convenient observation of the size of hydraulic oil pressure, facilitates the filtration of hydraulic oil and removes particulate impurities, improves the stability when hydraulic cylinder operates;

[0028] The inside of filter valve 8 of one side of liquid inlet chamber 16 is provided with liquid outlet chamber 15, and one end of liquid outlet chamber 15 extends to the outside of filter valve 8, and the top of filter valve 8 is provided with gland 19;

[0029] The inside of filter valve 8 is provided with filter element body 18, one end of liquid inlet chamber 16 below filter element body 18 is equipped with adapter cover 17, and adapter cover 17 extends to the inside of filter element body 18;

[0030] The bottom end of the gland 19 is provided with a sealing ring 21, and the gland 19 is connected with the filter valve 8 through the sealing ring 21, the inner wall of the gland 19 is provided with an internal thread 22, and the outer wall of the filter valve 8 on one side of the internal thread 22 is provided with an external thread 20;

[0031] The open sleeve 4 is sleeved on the end of the piston rod 2 away from the hydraulic oil cylinder body 1, the inside of the open sleeve 4 is provided with a locking bolt 3, the inside of the open sleeve 4 on one side of the locking bolt 3 is provided with a positioning shaft 5, and both ends of the positioning shaft 5 extend to the outside of the open sleeve 4;

[0032] The hydraulic oil enters the inside of the liquid inlet cavity 16 through the outside, is transported to the inside of the filter core body 18 through the adapter cover 17 from the liquid inlet cavity 16, is transported to the inside of the liquid outlet cavity 15 from the filter core body 18, when the filter core body 18 needs to be replaced, the gland 19 is rotated, the gland 19 is separated from the filter valve 8 under the threaded connection of the internal thread 22 and the external thread 20, the sealing ring 21 seals the filter valve 8 and the gland 19, the filter core is conveniently disassembled and replaced, and the convenience of disassembling and replacing the filter core is improved.

[0033] In use of the embodiment, an external power supply is connected, first, an external pipeline is connected with the butt oil pipe 7, the hydraulic oil enters the inside of the elbow pipe 9 through the filter valve 8, is transported to the inside of the three-way valve 10 through the mechanical valve 11 from the elbow pipe 9, is transported to the inside of the hydraulic oil cylinder body 1 from the first oil pipe 13, the extension and retraction movement of the piston rod 2 is controlled, the hydraulic pressure gauge 12 plays a pressure display role, the mechanical valve 11 plays a role of on-off control of the hydraulic oil in the pipeline, so that the speed of the hydraulic oil flow is conveniently controlled, the filter core body 18 in the filter valve 8 filters the hydraulic oil, so that impurities in the hydraulic oil are removed, so that the hydraulic oil with dirt is prevented from entering the oil cavity in the hydraulic oil cylinder body 1 to rub the inner wall, so that the oil cavity in the hydraulic oil cylinder body 1 is prevented from being worn, and a function of preventing hydraulic oil leakage is played, then the hydraulic oil enters the inside of the liquid inlet cavity 16 through the outside, is transported to the inside of the filter core body 18 through the adapter cover 17 from the liquid inlet cavity 16, is transported to the inside of the liquid outlet cavity 15 from the filter core body 18, when the filter core body 18 needs to be replaced, the gland 19 is rotated, the gland 19 is separated from the filter valve 8 under the threaded connection of the internal thread 22 and the external thread 20, the sealing ring 21 seals the filter valve 8 and the gland 19, and the use of the hydraulic oil cylinder is completed.

Claims

1. A hydraulic cylinder with anti-leakage function, characterized in that: The system includes a hydraulic cylinder body (1) and a piston rod (2). The piston rod (2) is disposed inside the hydraulic cylinder body (1) and extends to the outside of the hydraulic cylinder body (1). A positioning frame (6) is installed at the top of the hydraulic cylinder body (1). A first oil pipe (13) is installed at the top of the hydraulic cylinder body (1) on one side of the positioning frame (6), and a second oil pipe (14) is installed at the top of the hydraulic cylinder body (1) on the other side of the positioning frame (6). A connecting oil pipe (7) is symmetrically installed inside the positioning frame (6). One end of each extends to the outside of the positioning frame (6). The end of each docking oil pipe (7) away from the positioning frame (6) is equipped with a filter valve (8). The end of each filter valve (8) away from the docking oil pipe (7) is equipped with a bend (9). The end of each bend (9) away from the filter valve (8) is equipped with a mechanical valve (11). The end of each mechanical valve (11) away from the bend (9) is equipped with a three-way valve (10). The three-way valve (10) is connected to the first oil pipe (13) and the second oil pipe (14) respectively. The top of each three-way valve (10) is equipped with a hydraulic gauge (12).

2. A hydraulic cylinder with anti-leakage function according to claim 1, characterized in that: The filter valve (8) has an inlet chamber (16) inside, and one end of the inlet chamber (16) extends to the outside of the filter valve (8).

3. A hydraulic cylinder with anti-leakage function according to claim 2, characterized in that: The filter valve (8) on one side of the inlet chamber (16) is provided with an outlet chamber (15), and one end of the outlet chamber (15) extends to the outside of the filter valve (8). The top of the filter valve (8) is provided with a pressure cap (19).

4. A hydraulic cylinder with anti-leakage function according to claim 1, characterized in that: The filter valve (8) is provided with a filter element body (18) inside. An adapter cover (17) is installed at one end of the liquid inlet chamber (16) below the filter element body (18), and the adapter cover (17) extends into the interior of the filter element body (18).

5. A hydraulic cylinder with anti-leakage function according to claim 3, characterized in that: The bottom end of the pressure cap (19) is provided with a sealing ring (21), and the pressure cap (19) is connected to the filter valve (8) through the sealing ring (21).

6. A hydraulic cylinder with anti-leakage function according to claim 3, characterized in that: The inner wall of the pressure cap (19) is provided with an internal thread (22), and the outer wall of the filter valve (8) on one side of the internal thread (22) is provided with an external thread (20).

7. A hydraulic cylinder with anti-leakage function according to claim 1, characterized in that: The piston rod (2) is fitted with an open sleeve (4) at the end away from the hydraulic cylinder body (1), and a locking bolt (3) is provided inside the open sleeve (4).

8. A hydraulic cylinder with anti-leakage function according to claim 7, characterized in that: A positioning shaft (5) is provided inside the opening sleeve (4) on one side of the locking bolt (3), and both ends of the positioning shaft (5) extend to the outside of the opening sleeve (4).

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