CN215672941U

CN215672941U - High-frequency response is anti-return assembly for electro-hydraulic servo valve

Info

Publication number: CN215672941U
Application number: CN202121962179.0U
Authority: CN
Inventors: 杞振嘉
Original assignee: Huzhou Hesheng Automation Technology Co ltd
Current assignee: Huzhou Hesheng Automation Technology Co ltd
Priority date: 2021-08-20
Filing date: 2021-08-20
Publication date: 2022-01-28
Anticipated expiration: 2031-08-20

Abstract

The utility model relates to the technical field of electro-hydraulic servo valves and discloses a backflow prevention assembly for a high-frequency response electro-hydraulic servo valve, which comprises a valve body, wherein a connecting pipe is fixedly arranged on the front surface of the valve body, two limiting strips which are positioned on the upper side and the lower side of the connecting pipe are fixedly arranged on the front surface of the valve body, two threaded holes are formed in the front surface of the valve body, an installation plate which is positioned on the outer side of the connecting pipe and between the two limiting strips is arranged on the front side of the valve body, two connecting bolts with one ends extending into the threaded holes are inserted in the front side of the installation plate, and a sealing washer is fixedly arranged in the installation plate. This high frequency response is anti-return assembly for electro-hydraulic servo valve possesses advantages such as easy to assemble, has solved the pipeline of present electro-hydraulic servo valve and has all set up side by side the homonymy, and the indirection between the pipeline is less, adds at hydraulic system return line department and establishes anti-return assembly very troublesome problem.

Description

High-frequency response is anti-return assembly for electro-hydraulic servo valve

Technical Field

The utility model relates to the technical field of electro-hydraulic servo valves, in particular to a backflow prevention assembly for a high-frequency response electro-hydraulic servo valve.

Background

The electrohydraulic servo valve is a key element in electrohydraulic servo control, and is a hydraulic control valve which correspondingly outputs modulated flow and pressure after receiving analog electric signals.

At present, pipelines of an electro-hydraulic servo valve are arranged side by side at the same side, the indirect among the pipelines is small, and a backflow prevention assembly is arranged at a backflow pipeline of a hydraulic system very trouble.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Aiming at the defects of the prior art, the utility model provides the backflow prevention assembly for the high-frequency response electro-hydraulic servo valve, which has the advantages of convenience in installation and the like, and solves the problems that pipelines of the existing electro-hydraulic servo valve are arranged side by side at the same side, the indirect among the pipelines is small, and the backflow prevention assembly is very troublesome to additionally arrange at the backflow pipeline of a hydraulic system.

(II) technical scheme

The technical scheme for solving the technical problems is as follows: the utility model provides a high frequency response electricity is backflow prevention subassembly for liquid servo valve, includes the valve body, the positive fixed mounting of valve body has the connecting pipe, the positive fixed mounting of valve body has quantity to be two and be located the spacing of both sides about the connecting pipe, quantity is two screw holes for the front of valve body is seted up, the front side of valve body is provided with the mounting panel that is located the connecting pipe outside and is located between two spacing, the front side plug-in of mounting panel has quantity to extend to the connecting bolt of threaded hole inside for two and one end, the inside fixed mounting of mounting panel has seal ring, the front side fixed mounting of mounting panel has the sleeve pipe that is located seal ring front side, sheathed tube front side threaded connection has the check valve, sheathed tube outside threaded connection has the sealed lid that is located the check valve rear side.

The utility model has the beneficial effects that:

this high frequency response is anti-reflux subassembly for electricity liquid servo valve, through setting up the valve body, when carrying out anti-reflux subassembly installation, can wear the mounting panel along other pipelines, and move to the valve body, treat that the mounting panel enters into between the spacing, and with the valve body laminating back, insert connecting bolt and rotate earlier, twist the screw hole, fix the mounting panel in the valve body front side, one of them connecting pipe gets into the mounting panel and supports seal ring like this, and with bushing, then twist the sleeve pipe outside with the check valve, when the check valve can't rotate, rotate sealed lid, be close to along the sleeve pipe to the check valve, finally fold with the check valve, through such a mode, extend the pipeline to the hydraulic system backward flow, avoid other pipelines, reached the purpose of easy to assemble.

On the basis of the technical scheme, the utility model can be further improved as follows.

Further, the mounting panel includes the diaphragm, the connecting hole that quantity is two is seted up to the inside of diaphragm, the quantity is five jacks is seted up to the inside of diaphragm, the positive fixed mounting of diaphragm has quantity to be four and is located the layer board in the jack outside.

Adopt above-mentioned further scheme's beneficial effect is, through setting up five jacks, separately guide other pipelines, set up the layer board in jack exit simultaneously, extend the lift to the pipeline, avoid pipeline displacement friction, appear damaged.

Further, the width of the transverse plate is equal to the distance between the two limiting strips, and the axis of the connecting hole is coincided with the axis of the threaded hole.

Further, the diameter of the connecting pipe is equivalent to the aperture of the jack, and the connecting pipe is matched with the jack.

Furthermore, the sealing washer is positioned inside the second jack on the left side, and the sleeve is fixedly connected with the second jack on the left side.

Furthermore, a connecting groove is formed in the front side of the sealing cover, and the rear end of the one-way valve is located in the connecting groove.

Adopt above-mentioned further scheme's beneficial effect is, through rotating sealed lid and sleeve pipe thread occlusion, move to the check valve, merge with the check valve at the spread groove cooperation at last, seal check valve and sleeve pipe junction.

Drawings

FIG. 1 is a front view of the present invention;

FIG. 2 is a view of the valve body and mounting plate of the present invention in connection;

FIG. 3 is a top view of the mounting plate of the present invention;

fig. 4 is a top cross-sectional view of the inventive installation.

In the figure: 1. a valve body; 2. a connecting pipe; 3. a limiting strip; 4. a threaded hole; 5. mounting a plate; 51. a transverse plate; 52. connecting holes; 53. a jack; 58. a support plate; 6. a connecting bolt; 7. a one-way valve; 9. a sealing gasket; 10. a sleeve; 11. and (7) sealing the cover.

Detailed Description

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 derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the embodiment, as shown in fig. 1-4, the backflow prevention assembly for the high-frequency response electrohydraulic servo valve comprises a valve body 1, a connecting pipe 2 is fixedly installed on the front surface of the valve body 1, two limiting strips 3 which are located on the upper side and the lower side of the connecting pipe 2 are fixedly installed on the front surface of the valve body 1, two threaded holes 4 are formed in the front surface of the valve body 1, an installation plate 5 which is located on the outer side of the connecting pipe 2 and located between the two limiting strips 3 is arranged on the front side of the valve body 1, two connecting bolts 6 which are located on the front side of the installation plate 5 and extend to the inner portion of the threaded holes 4 are inserted in the front side of the installation plate 5, a sealing washer 9 is fixedly installed in the inner portion of the installation plate 5, a sleeve 10 which is located on the front side of the sealing washer 9 is fixedly installed on the front side of the installation plate 5, a one-way valve 7 is connected to the front side of the sleeve 10 in a threaded manner, and a sealing cover 11 which is located on the rear side of the one-way valve 7 is connected to the outer side of the sleeve 10 in a threaded manner.

The mounting plate 5 comprises a transverse plate 51, two connecting holes 52 are formed in the transverse plate 51, five inserting holes 53 are formed in the transverse plate 51, and four supporting plates 58 which are located outside the inserting holes 53 are fixedly mounted on the front surface of the transverse plate 51.

Through setting up five jacks 53, separately guide other pipelines, set up layer board 58 in jack 53 exit simultaneously, extend the lift to the pipeline, avoid pipeline displacement friction, appear damaged.

The width of the transverse plate 51 is equal to the distance between the two limiting strips 3, and the axial lead of the connecting hole 52 is superposed with the axial lead of the threaded hole 4.

The diameter of the connecting pipe 2 is equivalent to the aperture of the jack 53, and the connecting pipe 2 is matched with the jack 53.

The sealing washer 9 is positioned inside the second socket 53 on the left side, and the sleeve 10 is fixedly connected with the second socket 53 on the left side.

The front side of the sealing cover 11 is provided with a connecting groove, and the rear end of the one-way valve 7 is positioned in the connecting groove.

The sealing cover 11 is rotated to be meshed with the sleeve 10 in a threaded mode, moves towards the one-way valve 7, and is finally matched with the one-way valve 7 in a connecting groove to be combined, and the connecting position of the one-way valve 7 and the sleeve 10 is sealed.

The working principle is as follows:

the first step is as follows: the mounting plate 5 can be threaded along other pipelines and moves towards the valve body 1, after the mounting plate 5 enters the space between the limiting strips 3 and is attached to the valve body 1, the connecting bolt 6 is inserted and rotated, the threaded hole 4 is screwed in, the mounting plate 5 is fixed on the front side of the valve body 1, and thus one connecting pipe 2 enters the mounting plate 5 to abut against the sealing washer 9 and is connected with the sleeve 10;

the second step is that: then the one-way valve 7 is screwed to the outer side of the sleeve 10, and when the one-way valve 7 cannot rotate, the sealing cover 11 is rotated to be close to the one-way valve 7 along the sleeve 10, and finally the one-way valve 7 is folded.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a high frequency response is anti-return assembly for liquid servo valve, includes valve body (1), its characterized in that: the front surface of the valve body (1) is fixedly provided with a connecting pipe (2), the front surface of the valve body (1) is fixedly provided with two limiting strips (3) which are positioned at the upper side and the lower side of the connecting pipe (2), the front surface of the valve body (1) is provided with two threaded holes (4), the front side of the valve body (1) is provided with a mounting plate (5) which is positioned at the outer side of the connecting pipe (2) and between the two limiting strips (3), the front side of the mounting plate (5) is inserted with two connecting bolts (6) with one ends extending to the inner part of the threaded holes (4), a sealing washer (9) is fixedly arranged in the mounting plate (5), a sleeve (10) positioned at the front side of the sealing washer (9) is fixedly arranged at the front side of the mounting plate (5), the front side of the sleeve (10) is connected with a one-way valve (7) in a threaded manner, and the outer side of the sleeve (10) is connected with a sealing cover (11) located on the rear side of the one-way valve (7) in a threaded manner.

2. The backflow prevention assembly for a high frequency response electro-hydraulic servo valve as claimed in claim 1, wherein: mounting panel (5) are including diaphragm (51), connecting hole (52) that quantity is two are seted up to the inside of diaphragm (51), quantity is five jack (53) is seted up to the inside of diaphragm (51), the positive fixed mounting of diaphragm (51) has quantity to be four and is located layer board (58) in the jack (53) outside.

3. The backflow prevention assembly for a high frequency response electro-hydraulic servo valve as claimed in claim 2, wherein: the width of the transverse plate (51) is equal to the distance between the two limiting strips (3), and the axial lead of the connecting hole (52) is superposed with the axial lead of the threaded hole (4).

4. The backflow prevention assembly for a high frequency response electro-hydraulic servo valve as claimed in claim 2, wherein: the diameter of the connecting pipe (2) is equivalent to the aperture of the jack (53), and the connecting pipe (2) is matched with the jack (53).

5. The backflow prevention assembly for a high frequency response electro-hydraulic servo valve as claimed in claim 2, wherein: the sealing washer (9) is positioned in the second jack (53) on the left side, and the sleeve (10) is fixedly connected with the second jack (53) on the left side.

6. The backflow prevention assembly for a high frequency response electro-hydraulic servo valve as claimed in claim 1, wherein: the front side of the sealing cover (11) is provided with a connecting groove, and the rear end of the one-way valve (7) is positioned in the connecting groove.