CN216382068U

CN216382068U - Leakage-proof device for hydraulic cylinder

Info

Publication number: CN216382068U
Application number: CN202123203690.5U
Authority: CN
Inventors: 顾为易; 李会; 沈胜
Original assignee: Wuxi Shangcheng Machinery Automation Equipment Co ltd
Current assignee: Wuxi Shangcheng Machinery Automation Equipment Co ltd
Priority date: 2021-12-20
Filing date: 2021-12-20
Publication date: 2022-04-26
Anticipated expiration: 2031-12-20

Abstract

The leakage preventing device for hydraulic cylinder includes two oil inlet pipes welded to the outer wall of the cylinder body, oil conveying sealing cover connected to the outer wall of the oil inlet pipe, oil conveying pipe welded to the outer wall of the sealing cover, sealing gasket between the sealing cover and the oil inlet pipe to avoid leakage, the problem of oil leakage after long-time use is easily caused, the problem of oil waste easily caused when oil leaks in the working process of the common hydraulic oil cylinder in the prior art is solved through the oil seepage cavity, the oil return pipe and the one-way valve, through the oil filter and the magnetic sheet, the problem that most common hydraulic cylinders in the prior art do not have a filter structure and metal particles are easy to cause damage to sealing rings after long-time use of oil is solved, so that oil leakage is caused.

Description

Leakage-proof device for hydraulic cylinder

Technical Field

The utility model relates to the technical field of hydraulic cylinders, in particular to a leakage-proof device of a hydraulic cylinder.

Background

The hydraulic cylinder is composed of a cylinder tube in which a piston connected to a piston rod reciprocates, and the cylinder is required to prevent oil leakage when operating as a main body.

Ordinary hydraulic cylinder does not have the leakage prevention device mostly among the prior art, the problem that the oil body was revealed easily appears after long-time the use, ordinary hydraulic cylinder easily causes the extravagant problem of fluid when revealing fluid in the course of the work among the prior art simultaneously, secondly ordinary hydraulic cylinder does not have filtration among the prior art mostly, the damage that metal particle caused the sealing washer easily appears in fluid after long-time the use to lead to revealing the problem of fluid.

SUMMERY OF THE UTILITY MODEL

The technical problem to be solved by the utility model is as follows: most of common hydraulic oil cylinders in the prior art are not provided with leakage-proof devices, and the problem of oil body leakage is easy to occur after long-time use.

The technical scheme adopted by the utility model for solving the technical problem is as follows: a hydraulic cylinder leakage prevention device, comprising: the cylinder body, cylinder body outer wall welded connection has two to advance oil pipe, every advance oil pipe and keep away from the equal screw rod of cylinder body one side outer wall and be connected with the sealed lid of oil transportation, sealed lid keeps away from advance oil pipe one side outer wall welded connection has defeated oil pipe, sealed lid and advance and be equipped with seal gasket between the oil pipe, realize sealed function through seal gasket.

As a preferred technical scheme of the utility model, the inner wall of the sealing cover is clamped with the rubber ring, the outer wall of the rubber ring is tightly attached to the outer wall of the oil inlet pipe, and the leakage prevention function is realized through the rubber ring.

According to the preferable technical scheme, an oil seepage cavity is formed in the inner wall of the sealing cover, an oil return pipe is connected to the outer wall of the sealing cover in a threaded mode, a one-way valve is arranged on the outer wall of the oil return pipe, one end of the oil return pipe is connected with the outer wall of the oil conveying pipe in a threaded mode, and waste of oil is avoided through the oil return cavity and the one-way valve.

As a preferred technical scheme of the utility model, the outer wall of the oil return pipe is provided with a visual port, the inner wall of the visual port is provided with tempered glass, and the visual port and the tempered glass realize the function of observing whether oil is leaked.

As a preferred technical scheme of the utility model, the inner wall of the oil inlet pipe is clamped with an oil filter, a spring is arranged between the oil filter and the sealing cover, the inner wall of the oil filter is in screwed connection with a magnetic sheet, and the magnetic sheet has the function of adsorbing metal particles after oil is filtered through the oil filter.

The utility model has the following advantages: it does not have the anti-leakage device to have solved ordinary hydraulic cylinder among the prior art mostly through seal gasket and rubber circle, the problem that the oil body was revealed easily appears after long-time the use, through oozing the oil pocket, return oil pipe and check valve and solved among the prior art ordinary hydraulic cylinder and easily cause the extravagant problem of fluid when revealing fluid in the course of the work, it does not have filtration mostly to have solved ordinary hydraulic cylinder among the prior art through oil strain and magnetic sheet, metal particle easily appears in the fluid after long-time the use causes the damage of sealing washer, thereby lead to revealing the problem of fluid.

Drawings

FIG. 1 is a schematic sectional side view of a main body of a leakage preventing device for a hydraulic cylinder according to a preferred embodiment of the present invention;

FIG. 2 is an enlarged schematic view of a leakage preventing device of a hydraulic cylinder according to a preferred embodiment of the present invention at A;

fig. 3 is an enlarged schematic structural view of a hydraulic cylinder leakage preventing apparatus at a position B in accordance with a preferred embodiment of the present invention.

Description of reference numerals: 1. a cylinder body; 2. an oil inlet pipe; 3. a sealing cover; 4. an oil delivery pipe; 5. sealing gaskets; 6. a rubber ring; 7. an oil seepage cavity; 8. an oil return pipe; 9. a one-way valve; 10. a viewable port; 11. oil filtration; 12. a spring; 13. a magnetic sheet.

Detailed Description

The technical scheme of the utility model is clearly and completely described in the following with reference to the accompanying drawings. In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The utility model will be further explained with reference to the drawings.

Referring to fig. 1-3, an anti-leakage device for a hydraulic cylinder includes: the cylinder body 1, 1 outer wall welded connection of cylinder body has two to advance oil pipe 2, and every advances oil pipe 2 and keeps away from the equal screw rod of 1 one side outer wall of cylinder body and is connected with defeated oil seal lid 3, and sealed lid 3 keeps away from advancing oil pipe 2 one side outer wall welded connection and has defeated oil pipe 4, seals 3 and advances to be equipped with seal gasket 5 between the oil pipe 2, has had the problem that the oil body was revealed through seal gasket 5 greatly reduced.

Wherein, 11 inner walls are strained to magnetic sheet 13 screwed connection in oil for realize adsorbing the function of metal particle, spring 12 is located sealed lid 3 and oil and is strained between 11, is used for realizing that oil strains 11 stable fixed, and 11 joints are strained in oil and is in advancing 2 inner walls of oil pipe, is used for filtering fluid, advances 2 outer walls of oil pipe and the inseparable laminating of 6 outer walls of rubber circle, and 6 joints of rubber circle are in 3 inner walls of sealed lid, are used for realizing thoroughly sealing.

Wherein, but the 10 inner walls of visual mouth are located to tempered glass, be used for realizing observing and return 8 inner walls of oil pipe, visual mouth 10 is seted up in returning 8 outer walls of oil pipe, be used for observing whether fluid reveals, defeated oil pipe 4 outer walls and return 8 one end threaded connection of oil pipe, realize the oil return function, check valve 9 is located back 8 outer walls of oil pipe, prevent fluid countercurrent, return 8 threaded connection in sealed 3 outer walls of oil pipe, be used for realizing the oil return function, oil seepage chamber 7 is seted up in sealed 3 inner walls of lid, be used for providing the pressure release space.

Specifically, fluid enters into oil pipe 2 through defeated oil pipe 4 when using in, when cylinder body 1 produces the oil pressure, sealed lid 3 with advance oil pipe 2 inseparable fixed, seal gasket 5 provides the function that fluid was prevented revealing, and the rubber circle 6 of the 3 inner wall joints of sealed lid provides the secondary protection, when the problem of ageing oil seepage appears in seal gasket 5 after cylinder body 1 uses for a long time, the oil body moves to returning oil pipe 8 through the oil seepage chamber 7 that reserves, the staff can discover to reveal the problem when the oil body flows visual mouthful 10, the oil body flows back into oil pipe 2 again after passing through returning oil pipe 8 and check valve 9 this moment, the waste of oil body has been avoided, and oil filter 11 adsorbs the oil body of long-time use to magnetic sheet 13 when filtering the oil body that gets into, the problem of revealing that the metal particle damage sealing washer leads to in the oil body has been avoided.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of the present invention, and these improvements and modifications should also be construed as the protection scope of the present invention.

Other parts of the utility model not described in detail are prior art and are not described in detail herein.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the utility model has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. The utility model provides a hydraulic cylinder prevents leaking device which characterized in that includes: cylinder body (1), cylinder body (1) outer wall welded connection has two to advance oil pipe (2), every advance oil pipe (2) and keep away from the equal screw rod of cylinder body (1) one side outer wall and be connected with defeated oil seal lid (3), sealed lid (3) are kept away from and are advanced oil pipe (2) one side outer wall welded connection and have defeated oil pipe (4), sealed lid (3) and advance and be equipped with seal gasket (5) between oil pipe (2).

2. The hydraulic cylinder leakage-proof device as claimed in claim 1, wherein the inner wall of the sealing cover (3) is clamped with a rubber ring (6), and the outer wall of the rubber ring (6) is tightly attached to the outer wall of the oil inlet pipe (2).

3. The hydraulic cylinder leakage-proof device according to claim 1, wherein an oil seepage chamber (7) is formed in the inner wall of the sealing cover (3), an oil return pipe (8) is connected to the outer wall of the sealing cover (3) in a threaded manner, a one-way valve (9) is arranged on the outer wall of the oil return pipe (8), and one end of the oil return pipe (8) is connected to the outer wall of the oil delivery pipe (4) in a threaded manner.

4. The hydraulic cylinder leakage-proof device according to claim 3, wherein the outer wall of the oil return pipe (8) is provided with a view port (10), and the inner wall of the view port (10) is provided with tempered glass.

5. The hydraulic cylinder leakage-proof device as claimed in claim 1, wherein the inner wall of the oil inlet pipe (2) is clamped with an oil filter (11), a spring (12) is arranged between the oil filter (11) and the sealing cover (3), and a magnetic sheet (13) is screwed on the inner wall of the oil filter (11).