CN219452978U

CN219452978U - Hydraulic control one-way valve

Info

Publication number: CN219452978U
Application number: CN202320206976.9U
Authority: CN
Inventors: 李南星
Original assignee: Ningbo Stars Hydraulic Co ltd
Current assignee: Ningbo Stars Hydraulic Co ltd
Priority date: 2023-02-09
Filing date: 2023-02-09
Publication date: 2023-08-01
Anticipated expiration: 2033-02-09

Abstract

The application relates to a hydraulic control check valve relates to hydraulic control components and parts field, including the hydraulic control check valve, including the check valve body, oil inlet and oil-out have been seted up to the one end of check valve body, the check valve body in the oil inlet with the groove has been seted up to the opening part of oil-out, it is embedded to be equipped with the sealing washer to inlay to establish the inslot, sealing washer part protrusion in inlay the notch of establishing the groove. The hydraulic control check valve has the characteristics of reducing the probability of leakage when the oil inlet and the oil outlet of the hydraulic control check valve are connected with an oil way, and the like.

Description

Hydraulic control one-way valve

Technical Field

The application relates to the field of hydraulic control components, in particular to a hydraulic control one-way valve.

Background

Currently, a pilot operated check valve is a valve that relies on controlling fluid pressure to allow reverse flow through the check valve. Such valves are important in hydraulic support devices for coal mine machinery. The hydraulic control one-way valve is different from the common one-way valve in that a control oil way is added, when the control oil way is not connected with pressure oil, the hydraulic control one-way valve works like the common one-way valve, and the pressure oil only flows from the oil inlet to the oil outlet and cannot flow reversely. When the control oil way is provided with control pressure input, the piston ejector rod moves rightwards under the action of pressure oil, and the one-way valve is ejected by the ejector rod, so that the oil inlet and the oil outlet are communicated. If the oil outlet is larger than the oil inlet, the oil can flow reversely.

When the hydraulic control one-way valve is installed, the oil inlet and the oil outlet of the hydraulic control one-way valve are required to be communicated with the oil way, so that the control function of the oil way is realized, but once the oil inlet and the oil outlet of the hydraulic control one-way valve are connected with the oil way, leakage occurs, and the control instruction of the hydraulic control one-way valve is delayed or wrong.

Disclosure of Invention

In order to reduce the probability of leakage in connection between an oil inlet and an oil outlet of the hydraulic control check valve and an oil way, the application provides the hydraulic control check valve.

The above object of the present application is achieved by the following technical solutions:

the utility model provides a hydraulic control check valve, includes the check valve body, oil inlet and oil-out have been seted up to the one end of check valve body, the check valve body in the oil inlet with the opening part of oil-out has been seted up and has been inlayed the groove, inlay and establish the inslot and inlay and be equipped with the sealing washer, sealing washer part protrusion in inlay the notch of establishing the groove.

Through adopting above-mentioned technical scheme, when installing the hydraulic control check valve, need with hydraulic control check valve's oil inlet and oil-out and oil circuit intercommunication to realize the control function to the oil circuit, the oil circuit is directly installed and is offered the one end of oil inlet and oil-out at the check valve body, make the end of oil circuit directly support tightly in an terminal surface of check valve body, thereby compress the sealing washer that will protrude in an terminal surface of check valve body, thereby seal the oil circuit with the clearance of oil inlet and oil-out through the sealing washer of deformation, and then reduce the oil inlet and the oil-out of hydraulic control check valve and the probability that the oil circuit is leaked in the connection of oil circuit.

Preferably, the one-way valve body is provided with a ring groove on the side wall of the embedded groove, and a ring strip inserted into the ring groove is arranged on the peripheral wall of the sealing ring.

Through adopting above-mentioned technical scheme, set up the ring strip at the peripheral wall of sealing washer, set up the annular simultaneously at the lateral wall of inlaying the groove for can directly insert the ring strip in the annular when installing the sealing washer, and then fix the sealing washer, make whole check valve body can directly ann change the sealing washer and fix in inlaying the groove in the transportation, it is more convenient, more firm.

Preferably, a plurality of circles of deformation protrusions are coaxially arranged on one end face, facing away from the oil inlet and the oil outlet, of the sealing ring.

Through adopting above-mentioned technical scheme, set up the multiturn deformation arch at the sealing washer one end face that deviates from oil inlet and oil-out for deformation on the sealing washer is protruding the terminal surface butt oil circuit and producing deformation, will form multichannel sealed barrier, can increase sealed effect on the one hand, on the other hand can effectively reduce the probability that causes the leakage because of the oil circuit terminal surface unevenness.

Preferably, the sealing ring comprises a bottom ring embedded in the bottom wall of the embedded groove and a top ring pressed on the bottom ring and far away from the bottom wall of the embedded groove, and the ring strip is positioned at the peripheral side end of the bottom ring.

By adopting the technical scheme, the sealing ring is divided into two parts, one part is the bottom ring with the ring strips, and the top ring tightly pressed on the bottom ring, so that the ring strips can be aligned with the ring grooves for insertion during installation, and the bottom ring is accurately installed.

Preferably, the bottom ring is formed by assembling two semi-rings.

By adopting the technical scheme, the bottom ring is divided into two half rings, so that one half ring can be installed firstly and the other half ring can be installed secondly when the bottom ring is installed, and the bottom ring is convenient to install.

Preferably, an insertion groove is formed in one end of the half ring, and an insertion strip inserted in the insertion groove is arranged in the other end of the half ring.

Through adopting above-mentioned technical scheme, set up the cartridge groove in the one end of semi-ring, set up the cartridge strip at the other end of semi-ring for when two semi-rings are installed to inlaying and establish the inslot, the cartridge strip of a semi-ring needs the cartridge to the cartridge inslot of another semi-ring, thereby makes two semi-rings can be accurate to align, and then improves installation accuracy and firm degree.

Preferably, one end of the bottom ring, which is far away from the bottom wall of the embedded groove, is coaxially provided with a plurality of rings of sealing slots, and one end face of the top ring, which is abutted against the bottom ring, is coaxially provided with a plurality of rings of sealing inserts which are inserted into the sealing slots in a sealing way.

Through adopting above-mentioned technical scheme, offer the sealed slot of multiturn at the top of bottom ring, but set up the sealed cutting of multiturn cartridge at sealed slot in the bottom of top ring, can strengthen the sealed effect of sealing washer on the one hand, on the other hand can fix bottom ring and top ring, convenient transportation.

Preferably, the U-shaped groove is formed in the periphery side end of the oil inlet and the periphery side end of the oil outlet, the oil discharge grooves respectively communicated with the two U-shaped grooves are formed in one side, away from the oil inlet and the oil outlet, of the check valve body, and the two oil discharge grooves are respectively communicated to the two sides of the check valve body.

Through adopting above-mentioned technical scheme, offer U type groove at the one end of check valve body, offer the oil drain tank afterwards for when the oil inlet or the oil-out of check valve body takes place to leak, the accessible is what side the oil drain tank oil leak of observation, and then judges and leak to take place for oil inlet or oil-out, thereby convenient maintenance.

In summary, the beneficial technical effects of the application are:

1. when the hydraulic control one-way valve is installed, an oil inlet and an oil outlet of the hydraulic control one-way valve are required to be communicated with an oil way, so that the control function of the oil way is realized, the oil way is directly installed at one end of the one-way valve body where the oil inlet and the oil outlet are arranged, the end head of the oil way is directly abutted against one end face of the one-way valve body, a sealing ring protruding out of one end face of the one-way valve body is compressed, gaps between the oil way and the oil inlet and the oil outlet are sealed through the deformed sealing ring, and the probability of leakage in connection between the oil inlet and the oil outlet of the hydraulic control one-way valve and the oil way is further reduced;

2. the annular strip is arranged on the peripheral wall of the sealing ring, and the annular groove is formed in the side wall of the embedded groove, so that the annular strip can be directly inserted into the annular groove when the sealing ring is installed, and then the sealing ring is fixed, and the sealing ring can be directly and safely fixed in the embedded groove in the transportation process of the whole one-way valve body, so that the one-way valve is more convenient and firm;

3. the sealing ring is provided with a plurality of deformation bulges at one end face, deviating from the oil inlet and the oil outlet, of the sealing ring, so that when the deformation bulges on the sealing ring are abutted against the end face of the oil way and deform, a plurality of sealing barriers can be formed, on one hand, the sealing effect can be improved, and on the other hand, the leakage probability caused by uneven end face of the oil way can be effectively reduced.

Drawings

FIG. 1 is a schematic diagram of a hydraulically controlled check valve;

FIG. 2 is a schematic view of a partial explosion of a hydraulically controlled check valve;

FIG. 3 is an exploded view of the seal ring;

fig. 4 is a cross-sectional view of the seal ring.

In the figure: 1. a check valve body; 2. an oil inlet; 3. an oil outlet; 4. a groove is embedded; 5. a seal ring; 6. a ring groove; 7. a ring strip; 8. deformation bulge; 9. a bottom ring; 10. a top ring; 11. a half ring; 12. a plug-in groove; 13. inserting strips; 14. sealing the slot; 15. sealing the cutting; 16. a U-shaped groove; 17. and (5) discharging the oil groove.

Detailed Description

The present application is described in further detail below in conjunction with figures 1-4.

Referring to fig. 1, a hydraulic control check valve comprises a check valve body 1, wherein an oil inlet 2 and an oil outlet 3 are formed in one end of the check valve body 1.

Referring to fig. 1 and 2, the opening parts of the one-way valve body 1 at the oil inlet 2 and the oil outlet 3 are provided with embedded grooves 4, and sealing rings 5 are embedded in the embedded grooves 4.

Referring to fig. 2 and 3, the seal ring 5 includes a bottom ring 9 embedded in the bottom wall of the embedded groove 4 and a top ring 10 pressed on the bottom ring 9 and far away from the bottom wall of the embedded groove 4, and one end part of the top ring 10 far away from the bottom ring 9 protrudes out of the notch of the embedded groove 4.

The bottom ring 9 is formed by assembling two semi-rings 11, one end of each semi-ring 11 is provided with an inserting groove 12, the other end of each semi-ring 11 is provided with an inserting strip 13 inserted in the inserting groove 12, and when the two semi-rings 11 are assembled, the inserting strips 13 of one semi-ring 11 need to be inserted into the inserting grooves 12 of the other semi-ring 11, so that the two semi-rings 11 can be accurately aligned.

The side wall of the embedded groove 4 of the check valve body 1 is provided with a ring groove 6, the peripheral wall of the half ring 11 is integrally formed with a convex strip inserted in the ring groove 6, and after the two half rings 11 are assembled together, the two convex strips form a ring strip 7.

The sealing slot 14 of many circles has been seted up to the coaxial one end that keeps away from inlaying the diapire of establishing groove 4 of semi-ring 11, and the coaxial an organic whole of terminal surface that the top ring 10 butt bottom ring 9 is provided with the sealing cutting 15 of many circles insertion sealing slot 14, and the cross-section of sealing slot 14 perpendicular to length direction is the wedge, and the cross-section of sealing cutting 15 perpendicular to length direction is the wedge equally to make the top ring 10 can be firm be fixed in bottom ring 9.

Referring to fig. 1 and 4, a plurality of rings of deformation protrusions 8 are coaxially and integrally arranged on the top ring 10 towards one end face facing away from the oil inlet 2 and the oil outlet 3, and the deformation protrusions 8 are trapezoidal in cross section along the vertical length direction.

Referring to fig. 1, the U-shaped grooves 16 are formed in the circumferential side ends of the oil inlet 2 and the oil outlet 3 of the check valve body 1, the oil discharge grooves 17 respectively communicated with the two U-shaped grooves 16 are formed in the side, deviating from the oil inlet 2 and the oil outlet 3, of the check valve body 1, the two oil discharge grooves 17 are respectively communicated to the two sides of the check valve body 1, so that when the oil inlet 2 or the oil outlet 3 of the check valve body 1 leaks, the oil discharge grooves 17 on which side can be observed to leak oil, and further whether the oil inlet 2 or the oil outlet 3 leaks can be judged, and the maintenance is convenient.

The implementation principle of the embodiment is as follows:

when the hydraulic control one-way valve is installed, the two half rings 11 are inserted into the embedded grooves 4 respectively, so that the ring strip 7 can be inserted into the annular groove 6, meanwhile, the insertion strip 13 of one half ring 11 needs to be inserted into the insertion groove 12 of the other half ring 11, so that the two half rings 11 can be aligned accurately, then the top ring 10 is pressed into the embedded grooves 4 in a coaxial propping manner, so that the sealing insert strip 15 at one end of the top ring 10 can be inserted into the sealing slot 14 of the bottom ring 9, and an external oil way can be directly installed for use.

The embodiments of the present utility model are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in this way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.

Claims

1. A hydraulic control check valve, characterized in that: including check valve body (1), oil inlet (2) and oil-out (3) have been seted up to the one end of check valve body (1), check valve body (1) in oil inlet (2) with inlay groove (4) have been seted up in the opening part of oil-out (3), inlay groove (4) are embedded to be equipped with sealing washer (5), sealing washer (5) part protrusion in inlay the notch of establishing groove (4).

2. The hydraulically controlled check valve of claim 1, wherein: the one-way valve is characterized in that the side wall of the embedded groove (4) of the one-way valve body (1) is provided with a ring groove (6), and the peripheral wall of the sealing ring (5) is provided with a ring strip (7) which is inserted into the ring groove (6).

3. The hydraulically controlled check valve of claim 1, wherein: and a plurality of rings of deformation bulges (8) are coaxially arranged on one end face, facing away from the oil inlet (2) and the oil outlet (3), of the sealing ring (5).

4. The hydraulically controlled check valve of claim 2, wherein: the sealing ring (5) comprises a bottom ring (9) embedded in the bottom wall of the embedded groove (4) and a top ring (10) pressed on the bottom ring (9) away from the bottom wall of the embedded groove (4), and the ring strip (7) is positioned at the peripheral side end of the bottom ring (9).

5. The hydraulically controlled check valve of claim 4, wherein: the bottom ring (9) is formed by assembling two semi-rings (11).

6. The hydraulically controlled check valve of claim 5, wherein: an inserting groove (12) is formed in one end of the half ring (11), and an inserting strip (13) inserted into the inserting groove (12) is arranged at the other end of the half ring (11).

7. The hydraulically controlled check valve of claim 4, wherein: the bottom ring (9) is far away from one end of the bottom wall of the embedded groove (4) and is coaxially provided with a plurality of rings of sealing slots (14), and the top ring (10) is abutted to one end face of the bottom ring (9) and is coaxially provided with a plurality of rings of sealing cutting bars (15) which are inserted into the sealing slots (14) in a sealing mode.

8. The hydraulically controlled check valve of claim 1, wherein: the one-way valve body (1) is provided with U-shaped grooves (16) at the peripheral side ends of the oil inlet (2) and the oil outlet (3), one side, deviating from the oil inlet (2) and the oil outlet (3), of the one-way valve body (1) is provided with two oil discharge grooves (17) which are respectively communicated with the U-shaped grooves (16), and the two oil discharge grooves (17) are respectively communicated with two sides of the one-way valve body (1).