Rust-proof telescopic oil cylinder

Abstract

The utility model relates to the technical field of telescopic oil cylinders, and discloses a rust-proof telescopic oil cylinder which comprises a cylinder body, a piston rod is installed in the cylinder body, a protection assembly is arranged on the outer side of the cylinder body in a sleeved mode, and a rust-proof assembly is installed in the protection assembly. The protective assembly comprises a protective shell, mounting blocks are mounted on the two sides of the protective shell, a bolt is mounted on one side of each mounting block, a nut is arranged on the outer side of one end of each bolt in a sleeving mode, a round hole is formed in the upper end of the protective shell, and a sealing gasket is mounted on one side of the protective shell. The outer side of the cylinder body is protected through the protection assembly, the cylinder body is prevented from being exposed in moisture, salt mist or air containing corrosive substances for a long time, the anti-rust capacity is improved, the use performance of the cylinder body is guaranteed, the outer side of the piston rod is evenly coated with anti-rust oil through the anti-rust assembly, the anti-rust capacity of the outer side of the piston rod is improved, and the service life of the piston rod is prolonged. Normal use of the piston rod is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of telescopic oil cylinders, and particularly relates to an anti-rust telescopic oil cylinder. Background Technique

[0002] A telescopic oil cylinder is a device that can freely expand and contract. It converts hydraulic energy into mechanical energy by using the hydraulic principle to achieve the expansion and contraction movement of components.

[0003] As an important actuator in the hydraulic system, telescopic oil cylinders are widely used in various mechanical equipment. However, during actual use, due to the complex and changeable working environment, especially when the oil cylinder is exposed to humid, salt spray or corrosive substance-containing air for a long time, its surface and internal components are prone to rust, resulting in a decline in the performance of the oil cylinder. Therefore, it is necessary to develop an anti-rust telescopic oil cylinder for easy use.

[0004] Chinese Patent Publication No.: CN212985673U discloses "An Anti-rust Telescopic Oil Cylinder", which includes a cylinder body and a piston embedded in the cylinder body. One end of the cylinder body is provided with a first through hole for the piston to expand and contract. A brush oil member covering the first through hole is arranged on one side of the cylinder body close to the first through hole. The brush oil member includes a support ring arranged on one side of the cylinder body close to the first through hole and an oil-absorbing member arranged on the inner peripheral surface of the support ring. The oil-absorbing member includes a plurality of oil-absorbing strips covering the first through hole. This application has the effect of preventing the piston of the telescopic oil cylinder from rusting.

[0005] In the above-mentioned prior art, when the piston embedded in the cylinder body expands and contracts in the first through hole under the action of pressure oil, the oil-absorbing strips arranged on the inner peripheral surface of the support ring and covering the first through hole are deformed under the action of the piston's expansion and contraction and closely abut against the outer peripheral surface of the piston. At this time, the lubricating oil is pre-adsorbed on the oil-absorbing strips and evenly smeared on the outer peripheral surface of the piston as the piston expands and contracts, thereby protecting the outer peripheral surface of the piston and preventing the piston from rusting due to long-term use. However, in the process of using the existing device, it does not have the function of protecting the whole cylinder body. In the case of long-term use, when the cylinder body is exposed to humid, salt spray or corrosive substance-containing air for a long time, its surface is prone to rust, resulting in a decline in the performance of the oil cylinder and a reduction in its service life. Content of the Utility Model

[0006] The purpose of the utility model is to provide an anti-rust telescopic oil cylinder to solve the problem raised in the above background technique that it does not have the function of protecting the whole cylinder body. In the case of long-term use, when the cylinder body is exposed to humid, salt spray or corrosive substance-containing air for a long time, its surface is prone to rust, resulting in a decline in the performance of the oil cylinder and a reduction in its service life.

[0007] To solve the above technical problems, the present utility model provides the following technical solution: an anti-rust telescopic oil cylinder, comprising a cylinder body, a piston rod is installed inside the cylinder body, a protective component is sleeved outside the cylinder body, and an anti-rust component is installed inside the protective component;

[0008] The protective component includes a protective housing, mounting blocks are installed on both sides of the protective housing, a bolt is installed on one side of the mounting block, a nut is sleeved outside one end of the bolt, a round hole is opened at the upper end of the protective housing, and a sealing gasket is installed on one side of the protective housing;

[0009] The anti-rust component includes a mounting ring, a spring is installed inside the mounting ring, a moving block is arranged on one side of the spring, a moving rod is installed on one side of the moving block, one end of the moving rod is connected to an oil storage tank, and an oil absorption strip is arranged on one side of the oil storage tank.

[0010] Preferably, an oil inlet hole is arranged on one side of the cylinder body, the oil inlet hole penetrates through the protective housing and extends to its outside, the piston rod penetrates through the protective housing and extends to its outside, the protective housing is in two groups, and the two groups of protective housings are symmetrically arranged.

[0011] Preferably, there are multiple groups of the mounting blocks, the multiple groups of mounting blocks are symmetrically arranged on both sides of the protective housing, the bolt penetrates through the mounting block and extends to its outside, and the bolt matches the nut.

[0012] Preferably, a sealing gasket is installed on one side of one group of the protective housing, and a groove is opened at a position corresponding to the sealing gasket on the other group of the protective housing.

[0013] Preferably, the mounting ring is detachably arranged inside the protective housing, the number of the mounting rings matches that of the protective housing, and the moving block is slidably arranged inside the mounting ring.

[0014] Preferably, the moving rod penetrates through the mounting ring and extends to its outside, and multiple oil leakage holes are opened on one side of the oil storage tank.

[0015] Preferably, the oil absorption strip is detachably installed on one side of the oil storage tank, there are multiple groups of the oil absorption strips, the multiple groups of oil absorption strips are symmetrically arranged on the outside of the piston rod, and the contact ends of the symmetrically arranged oil absorption strips are engaged with each other.

[0016] Compared with the prior art, the beneficial effects achieved by the present utility model are:

[0017] First, the utility model protects the outside of the cylinder block through the arranged protection component, avoiding the cylinder block being exposed to humid, salt spray or air containing corrosive substances for a long time, improving the rust prevention ability and ensuring the service performance of the cylinder block. The symmetrically arranged protective shells are detachably installed on the outside of the cylinder block by bolts passing through the symmetrically arranged mounting blocks, and nuts are screwed into the ends of the bolts. Sealing gaskets are arranged at the contact surfaces of the symmetrically arranged protective shells to ensure the sealing of the installation structure of the symmetrically arranged protective shells and protect the cylinder block.

[0018] Second, the utility model evenly applies anti-rust oil to the outside of the piston rod through the arranged anti-rust component, improving the anti-rust ability of the outside of the piston rod and ensuring the normal use of the piston rod. The oil absorption strip is closely contacted with the piston rod through a spring. The spring presses the moving block to move in the mounting ring. The movement of the moving block drives the movement of the moving rod. The movement of the moving rod drives the movement of the oil storage tank. The movement of the oil storage tank drives the oil absorption strip to fit on the outside of the piston rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic structural diagram of the utility model;

[0020] Figure 2 is a cross-sectional view of the utility model;

[0021] Figure 3 is a schematic structural diagram of the protective shell and the mounting block of the utility model;

[0022] Figure 4 is a schematic structural diagram of the moving rod and the oil storage tank of the utility model.

[0023] In the figure: 1. Cylinder block; 2. Piston rod; 3. Oil inlet hole; 4. Protection component; 401. Protective shell; 402. Mounting block; 403. Bolt; 404. Nut; 405. Round hole; 406. Sealing gasket; 5. Anti-rust component; 501. Mounting ring; 502. Spring; 503. Moving block; 504. Moving rod; 505. Oil storage tank; 506. Oil absorption strip. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0025] Please refer to Figures 1-4, a rust-proof telescopic oil cylinder, comprising a cylinder block 1, a piston rod 2 is installed inside the cylinder block 1, a protective component 4 is sleeved outside the cylinder block 1, and an anti-rust component 5 is installed inside the protective component 4; the protective component 4 includes a protective housing 401, mounting blocks 402 are installed on both sides of the protective housing 401, a bolt 403 is installed on one side of the mounting block 402, a nut 404 is sleeved outside one end of the bolt 403, a round hole 405 is opened at the upper end of the protective housing 401, and a gasket 406 is installed on one side of the protective housing 401; the anti-rust component 5 includes a mounting ring 501, a spring 502 is installed inside the mounting ring 501, a moving block 503 is arranged on one side of the spring 502, a moving rod 504 is installed on one side of the moving block 503, one end of the moving rod 504 is connected to an oil storage tank 505, and an oil absorbing strip 506 is arranged on one side of the oil storage tank 505.

[0026] Through the above technical solution, by setting the protective component 4, the outside of the cylinder block 1 is protected to prevent the cylinder block 1 from being exposed to humid, salt spray or corrosive substance-containing air for a long time, improving the rust-proof ability and ensuring the service performance of the cylinder block 1. By passing the bolt 403 through the symmetrically arranged mounting blocks 402 and screwing the nut 404 into the end of the bolt 403, the symmetrically arranged protective housing 401 is detachably installed outside the cylinder block 1. By setting the gasket 406 at the contact surface of the symmetrically arranged protective housing 401, the sealing performance of the installation structure of the symmetrically arranged protective housing 401 is ensured to protect the cylinder block 1. By setting the anti-rust component 5, anti-rust oil is evenly applied to the outside of the piston rod 2 to improve the anti-rust ability of the outside of the piston rod 2 and ensure the normal use of the piston rod 2. Through the spring 502, the oil absorbing strip 506 is closely contacted with the piston rod 2. The spring 502 presses the moving block 503 to move in the mounting ring 501. The movement of the moving block 503 drives the movement of the moving rod 504. The movement of the moving rod 504 drives the movement of the oil storage tank 505. The movement of the oil storage tank 505 drives the oil absorbing strip 506 to fit on the outside of the piston rod 2.

[0027] Specifically, an oil inlet hole 3 is arranged on one side of the cylinder block 1. The oil inlet hole 3 penetrates through the protective housing 401 and extends to its outside. The piston rod 2 penetrates through the protective housing 401 and extends to its outside. The protective housing 401 is in two groups, and the two groups of protective housing 401 are symmetrically arranged.

[0028] Through the above technical solution, liquid is injected at the oil inlet hole 3 to make the piston rod 2 move. The cylinder block 1, the oil inlet hole 3 and the piston rod 2 form a telescopic oil cylinder. A gasket matching the piston rod 2 is placed where the piston rod 2 penetrates through the protective housing 401. A gasket matching the oil inlet hole 3 is placed where the oil inlet hole 3 penetrates through the protective housing 401 to improve the sealing performance and facilitate protection. By symmetrically arranging the two groups of protective housing 401, it is convenient for installation and disassembly.

[0029] Specifically, there are multiple groups of mounting blocks 402. The multiple groups of mounting blocks 402 are symmetrically arranged on both sides of the protective housing 401. The bolt 403 passes through the mounting block 402 and extends to its outside, and the bolt 403 is matched with the nut 404.

[0030] Through the above technical solution, the bolt 403 is used to pass through the symmetrically arranged mounting blocks 402, the nut 404 is screwed into the end of the bolt 403, and the symmetrically arranged protective housing 401 is detachably installed on the outside of the cylinder block 1, which is convenient for installation.

[0031] Specifically, a sealing gasket 406 is installed on one side of a group of protective housings 401, and a groove is provided at a position corresponding to the sealing gasket 406 on the other group of protective housings 401.

[0032] Through the above technical solution, the sealing gasket 406 installed on one side of a group of protective housings 401 and the groove provided at a position corresponding to the sealing gasket 406 on the other group of protective housings 401 are used in cooperation to improve the sealing performance of the installation structure of the protective housing 401.

[0033] Specifically, the mounting ring 501 is detachably arranged inside the protective housing 401. The number of mounting rings 501 matches that of the protective housing 401, and the moving block 503 is slidably arranged inside the mounting ring 501.

[0034] Through the above technical solution, the mounting ring 501 is detachable inside the protective housing 401 and is arranged at the upper end of the cylinder block 1. There are two groups of mounting rings 501, which are symmetrically arranged outside the piston rod 2. The oil absorbing strip 506 is tightly contacted with the piston rod 2 by using the spring 502.

[0035] Specifically, the moving rod 504 passes through the mounting ring 501 and extends to its outside, and multiple oil leakage holes are provided on one side of the oil storage tank 505.

[0036] Through the above technical solution, the spring 502 is used to press the moving block 503 to move in the mounting ring 501. The movement of the moving block 503 drives the movement of the moving rod 504. Multiple oil leakage holes are evenly arranged at equal intervals on one side of the oil storage tank 505, which facilitates the anti-rust oil in the oil storage tank 505 to enter the oil absorbing strip 506. A end cover is provided at the upper end of the oil storage tank 505, which is convenient for replenishing the anti-rust oil.

[0037] Specifically, the oil absorbing strip 506 is detachably installed on one side of the oil storage tank 505. There are multiple groups of oil absorbing strips 506, which are symmetrically arranged outside the piston rod 2, and the contact ends of the symmetrically arranged oil absorbing strips 506 are engaged with each other.

[0038] Through the above technical solution, the oil suction strip 506 is convenient to disassemble. The piston rod 2 is in long-term contact with the oil suction strip 506, and is prone to wear under the condition of the telescopic movement of the piston rod 2, which is convenient for replacing the oil suction strip 506 to ensure the use effect. The ring structure formed by the symmetrically arranged oil suction strips 506 fits with the piston rod 2, and the anti-rust oil is evenly applied to the outer side of the piston rod 2 to improve the anti-rust ability of the outer side of the piston rod 2.

[0039] During use, when it is necessary to protect the outer side of the cylinder block 1, the bolt 403 passes through the symmetrically arranged mounting blocks 402, and the nut 404 is screwed into the end of the bolt 403, and the symmetrically arranged protective housing 401 is detachably installed on the outer side of the cylinder block 1. By providing the sealing gasket 406 at the contact surface of the symmetrically arranged protective housing 401, the sealing performance of the installation structure of the symmetrically arranged protective housing 401 is ensured to protect the cylinder block 1. When it is necessary to evenly apply the anti-rust oil to the outer side of the piston rod 2, the spring 502 presses the moving block 503 to move in the mounting ring 501. The movement of the moving block 503 drives the movement of the moving rod 504, the movement of the moving rod 504 drives the movement of the oil storage tank 505, and the movement of the oil storage tank 505 drives the oil suction strip 506 to fit on the outer side of the piston rod 2, and the anti-rust oil is evenly applied to the outer side of the piston rod 2.

[0040] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present application. The scope of the present application is defined by the appended claims and their equivalents.

Claims

1. An anti-rust telescopic oil cylinder, comprising a cylinder block (1), characterized in that: A piston rod (2) is installed inside the cylinder block (1), a protective component (4) is sleeved outside the cylinder block (1), and an anti-rust component (5) is installed inside the protective component (4). The protective component (4) includes a protective housing (401), mounting blocks (402) are installed on both sides of the protective housing (401), bolts (403) are installed on one side of the mounting blocks (402), nuts (404) are sleeved outside one end of the bolts (403), a circular hole (405) is opened at the upper end of the protective housing (401), and a sealing gasket (406) is installed on one side of the protective housing (401). The anti-rust component (5) includes a mounting ring (501), a spring (502) is installed inside the mounting ring (501), a moving block (503) is arranged on one side of the spring (502), a moving rod (504) is installed on one side of the moving block (503), one end of the moving rod (504) is connected to an oil storage tank (505), and an oil absorption strip (506) is arranged on one side of the oil storage tank (505).

2. The anti-rust telescopic oil cylinder according to claim 1, characterized in that: An oil inlet hole (3) is arranged on one side of the cylinder block (1), the oil inlet hole (3) penetrates through the protective housing (401) and extends to its outside, the piston rod (2) penetrates through the protective housing (401) and extends to its outside, and there are two groups of the protective housing (401), and the two groups of the protective housing (401) are symmetrically arranged.

3. A rust-proof telescopic oil cylinder according to claim 1, characterized in that: There are multiple groups of the mounting blocks (402), and the multiple groups of the mounting blocks (402) are symmetrically arranged on both sides of the protective housing (401), the bolts (403) penetrate through the mounting blocks (402) and extend to their outside, and the bolts (403) are matched with the nuts (404).

4. A rust-proof telescopic oil cylinder according to claim 1, characterized in that: A sealing gasket (406) is installed on one side of one group of the protective housing (401), and a groove is opened at the position corresponding to the sealing gasket (406) on the other group of the protective housing (401).

5. A rust-proof telescopic oil cylinder according to claim 1, characterized in that: The mounting ring (501) is detachably arranged inside the protective housing (401), the number of the mounting rings (501) is matched with that of the protective housing (401), and the moving block (503) is slidably arranged inside the mounting ring (501).

6. The anti-rust telescopic oil cylinder according to claim 1, wherein: The moving rod (504) penetrates through the mounting ring (501) and extends to its outside, and multiple oil leakage holes are opened on one side of the oil storage tank (505).

7. A rust-proof telescopic oil cylinder according to claim 1, characterized in that: The oil absorption strip (506) is detachably installed on one side of the oil storage tank (505), there are multiple groups of the oil absorption strips (506), the multiple groups of the oil absorption strips (506) are symmetrically arranged on the outside of the piston rod (2), and the contact ends of the symmetrically arranged oil absorption strips (506) are engaged with each other.

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