CN218625543U

CN218625543U - High-pressure one-way valve

Info

Publication number: CN218625543U
Application number: CN202222833379.7U
Authority: CN
Inventors: 胡炳良; 杨朋; 郭堃; 周启迪
Original assignee: Changde Zhonglian Zhongke Hydraulic Co ltd; Zoomlion Heavy Industry Science and Technology Co Ltd
Current assignee: Changde Zhonglian Zhongke Hydraulic Co ltd; Zoomlion Heavy Industry Science and Technology Co Ltd
Priority date: 2022-10-26
Filing date: 2022-10-26
Publication date: 2023-03-14
Anticipated expiration: 2032-10-26

Abstract

The utility model relates to a check valve specifically discloses a high-pressure check valve, which comprises a valve body, be equipped with the through-hole on the valve body, the through-hole includes tip through-hole and middle part through-hole, the tip through-hole with be formed with the transition inclined plane between the through-hole of middle part, be equipped with the case in the tip through-hole, cup joint elastic component on the case and with the mount pad that the valve body is connected, the front end of case is formed into sphere or round platform, and can support and lean on the transition inclined plane, keeping away from of mount pad be equipped with the overload structure on the one end terminal surface of case, the overload structure can insert the mount pad makes the mount pad with threaded connection structure between the tip through-hole transships and warp, in order to restrict the mount pad rotates, just the border of mount pad with be formed with a plurality of channels that overflow between the valve body. The utility model discloses a high-pressure check valve through-flow capacity is big, and loss of pressure is less, excellent in use effect.

Description

High-pressure one-way valve

Technical Field

The utility model relates to a check valve specifically relates to a high pressure check valve.

Background

The hydraulic check valve is a kind of check valve, which can prevent the reverse flow of oil in a hydraulic system. The performance indexes of the common one-way valve and the hydraulic one-way valve are different and comprise performance indexes such as internal leakage amount, pressure loss, opening pressure and the like, and the hydraulic one-way valve is various in types, and comprises a spring type hydraulic one-way valve, a gravity type hydraulic one-way valve and the like.

In the prior art, a hydraulic check valve may include a housing, a spool, a valve seat, and a spool spring. Wherein, the case spring is located between disk seat and the case, and the inside flow area of the hydraulic check valve among the prior art is less however, leads to loss of pressure great to, do not set up the structure of preventing loosing on the disk seat, long-term the use can cause disk seat installation unstability, thereby leads to opening pressure not to accord with the designing requirement.

In view of the above, there is a need to provide a high pressure check valve to solve or overcome the above technical problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a high-pressure check valve is provided, this high-pressure check valve through-flow capacity is big, and loss of pressure is less, excellent in use effect.

In order to solve the technical problem, the utility model provides a high-pressure check valve, which comprises a valve body, be equipped with the through-hole on the valve body, the through-hole includes tip through-hole and middle part through-hole, be formed with the transition inclined plane between tip through-hole and middle part through-hole, be equipped with the case in the tip through-hole, cup joint the elastic component on the case and the mount pad of being connected with the valve body, the front end of case is formed into sphere or round platform, and can support and lean on the transition inclined plane, the one end terminal surface of keeping away from the case of mount pad is equipped with the overload structure, the overload structure can insert the mount pad and make the threaded connection structure between mount pad and tip through-hole transship the deformation, in order to restrict the mount pad and rotate, and be formed with a plurality of passageways that overflow between the border of mount pad and the valve body.

As a preferred embodiment of the present invention, the threaded connection structure includes an external thread provided on an outer peripheral surface of the mounting seat and an internal thread provided on an inner peripheral surface of the end portion through hole, and the overload structure is inserted into the mounting seat so as to be capable of deforming the external thread in an overload manner.

Preferably, the valve core comprises a valve core closed end and an elastic piece mounting part which is integrally formed with the valve core closed end, a positioning hole is formed in the central area of the elastic piece mounting part, and the mounting seat can penetrate through the elastic piece and is inserted into the positioning hole.

More preferably, the mounting seat includes the base and the reference column of being connected with the base, and the reference column can insert in the locating hole to can carry out radial spacing to the case.

As another preferred embodiment of the present invention, the positioning column is a cylinder structure.

As another preferred embodiment of the present invention, the central region of the base is provided with an inner hexagonal groove.

As a specific structure of the utility model, the flow passage is formed into a through hole with a semicircular or fan-shaped cross section.

More specifically, the number of the overflowing passages is at least two, and each overflowing passage is uniformly arranged on the periphery of the base.

As another concrete structural style of the utility model, the overload structure includes the cylindrical through-hole or the conical through-hole of setting on the base, the cylindrical through-hole or can insert rivet or pin in the conical through-hole and carry out locking.

As another specific structure of the present invention, the elastic member is a compression spring.

Compared with the prior art, the beneficial effects of the utility model are that:

(1) The utility model discloses an among the basic technical scheme, the utility model discloses a high-pressure check valve includes the valve body, be equipped with the through-hole on the valve body, the through-hole includes tip through-hole and middle part through-hole, be formed with transition inclined plane between tip through-hole and middle part through-hole, be equipped with the case in the tip through-hole, cup joint the elastic component on the case and with the mount pad that the valve body is connected, the front end of case is formed into sphere or round platform, and can support and lean on transition inclined plane, be equipped with the overload structure on the one end terminal surface of keeping away from the case of mount pad, the overload structure can insert the mount pad and make the threaded connection structure between mount pad and tip through-hole transship the deformation, in order to restrict the mount pad and rotate, and be formed with a plurality of passageways that overflow between the border of mount pad and the valve body. Through setting up the overload structure, can make the connection between mount pad and the tip through-hole have locking effect, through setting up a plurality of passageways that flow through, can increase the through-flow area, reduce loss of pressure.

(2) The utility model discloses an under the preferred embodiment, the case includes the case blind end and with case blind end integrated into one piece's elastic component installation department, and the central zone of elastic component installation department is equipped with the locating hole, and the mount pad includes the base and the reference column of being connected with the base, and the reference column can insert in the locating hole to can radially spacing to the case, the central zone of base is equipped with interior hexagonal recess, consequently, the utility model discloses a when high-pressure check valve was opened, mutually supporting between the reference column on the locating hole on its case and the base of mount pad can guarantee that the case can not take place to deflect when opening, in addition, is equipped with interior hexagonal recess on the base, the dismouting of being convenient for.

Other features and advantages of the present invention will be described in detail in the detailed description which follows.

Drawings

Fig. 1 is a schematic structural view of a high-pressure check valve according to an embodiment of the present invention;

FIG. 2 is a top view of FIG. 1;

FIG. 3 is a schematic view of a mounting base according to an embodiment of the present invention;

fig. 4 is a sectional view of fig. 3.

Description of the reference numerals

1 valve body 101 end through hole

102 middle through hole 103 transition slope

104 flow channel 2 valve core

201 positioning hole 202 elastic member mounting part

203 valve core closed end 3 elastic piece

4 mount 401 base

402 hexagonal socket inside positioning post 403

5 overload structure

Detailed Description

The following describes in detail embodiments of the present invention with reference to the accompanying drawings. It is to be understood that the description of the embodiments herein is for purposes of illustration and explanation only and is not intended to limit the invention.

In the description of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the terms "disposed" or "connected" should be interpreted broadly, for example, the term "connected" may be a fixed connection, a detachable connection, or an integral connection; they may be connected directly or indirectly through intervening media, or they may be connected through inter-element communication or interaction between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present invention, unless otherwise indicated, the directional terms used are based on the directions or positional relationships shown in the drawings, and do not indicate or imply that the device or element referred to must have a particular direction, be constructed and operated in a particular direction, and therefore should not be construed as limiting the present invention; for the orientation terms of the present invention, it should be understood in conjunction with the actual installation state.

The present invention will be described in detail below with reference to the accompanying drawings.

As shown in fig. 1 and fig. 2, the utility model provides a high-pressure check valve, including valve body 1, be equipped with the through-hole on the valve body 1, the through-hole includes tip through-hole 101 and middle part through-hole 102, be formed with transition inclined plane 103 between tip through-hole 101 and middle part through-hole 102, be equipped with case 2 in the tip through-hole 101, cup joint the elastic component 3 on case 2 and the mount pad 4 of being connected with valve body 1, the front end of case 2 is formed into sphere or round platform, and can support and lean on transition inclined plane 103, be equipped with overload structure 5 on the one end terminal surface of keeping away from case 2 of mount pad 4, overload structure 5 can insert mount pad 4 and make the threaded connection structure overload deformation on mount pad 4 and the tip through-hole 101, in order to limit mount pad 4 to rotate, and be formed with a plurality of channels that overflow between the border of mount pad 4 and the valve body 1.

In the above-mentioned basic implementation mode, the utility model discloses a high pressure check valve's 1 inside through-holes that are equipped with of valve body is equipped with case 2, elastic component 3 and mount pad 4 in the through-hole, ingeniously cup joints elastic component 3 on case 2, and valve body 1 is connected with mount pad 4, and it needs to explain that can form the space that is suitable for holding elastic component 3 between case 2 and the mount pad 4 to make elastic component 3 be fixed in between case 2 and the mount pad 4. The utility model discloses a set up elastic component 3, elastic component 3 can produce elasticity under the effect of external force to can produce certain packing force between case 2 and mount pad 4, when case 2 received pressure, case 2 can slowly be opened steadily, so that the circulation of fluid.

The utility model discloses set up overload structure 5 on the one end terminal surface of keeping away from case 2 of mount pad 4 innovatively, overload structure 5 can insert mount pad 4 and make the threaded connection structure between mount pad 4 and tip through-hole 101 overload and warp, think of, the connected mode between mount pad 4 and the valve body 1 inside is threaded connection, it is required to explain, the position of inserting of overload structure 5 sets up to the junction of being close to mount pad 4 and tip through-hole 101, after overload structure 5 inserts mount pad 4, can make the position of inserting take place to deform, thereby can destroy the threaded connection structure between mount pad 4 and tip through-hole 101, make the threaded connection mode between mount pad 4 and tip through-hole 101 inefficacy, that is to say, threaded connection structure is destroyed the back, mount pad 4 can't rotate, thereby play limiting displacement. The utility model discloses a set up overload structure 5, can restrict the rotation between mount pad 4 and the tip through-hole 101, prevent to take place to rotate or not hard up between mount pad 4 and the valve body 1 in the use, guaranteed case 2's structural stability.

Furthermore, the utility model discloses a be formed with a plurality of passageways that flow over between the border of mount pad 4 of high pressure check valve and tip through-hole 101, can increase the flow area of the inside fluid of valve body 1, reinforcing flow capacity, and then can reduce because fluid flows the not smooth loss of pressure that leads to.

It should be noted that the front end of the valve element 2 may be understood as an end close to the transition slope 103. In addition, the front end of the valve core 2 is arranged to be in a spherical surface or a circular truncated cone structure, so that the valve core can be attached to the transition inclined plane 103 more tightly, and the sealing performance is better.

As a preferred embodiment of the present invention, the threaded connection structure includes an external thread provided on the outer peripheral surface of the mounting seat 4 and an internal thread provided on the inner peripheral surface of the end portion through hole 101, and the overload structure 5 is inserted into the mounting seat 4 to be able to deform the external thread in an overload manner. The threaded connection structure includes an external thread and an internal thread, wherein the external thread is provided on the outer peripheral surface of mount pad 4, the internal thread is provided on the inner peripheral surface of end portion through hole 101, and internal thread and external thread are fitted to connect mount pad 4 and end portion through hole 101 as a whole. The outer peripheral surface of the mounting seat 4 is not necessarily provided with the external thread all over, and the external thread may be provided only on the surface of the mounting seat 4 that contacts the end portion through hole 101. As can be seen from the above description, the overload structure 5 is inserted into the mounting seat 4, so that the threaded connection structure is deformed in an overload manner, and the mounting seat 4 is limited in rotation in the end through hole 101, thereby performing a limiting function.

Preferably, the valve core 2 comprises a valve core closed end 203 and an elastic piece mounting part 202 integrally formed with the valve core closed end 203, a positioning hole 201 is formed in a central area of the elastic piece mounting part 202, and the mounting seat 4 can penetrate through the elastic piece 3 and be inserted into the positioning hole 201. The valve core closed end 203 is positioned at the front end of the elastic part mounting part 202 and can be abutted against the transition inclined plane 103, when the high-pressure one-way valve of the utility model is not in operation, the valve core closed end 203 is abutted against the transition inclined plane 103 to form a sealing structure, and oil cannot circulate; during operation, the valve element closed end 203 is separated from the transition inclined surface 103, and oil flows backwards from a gap formed between the valve element closed end 203 and the transition inclined surface 103. Of course, the valve element closed end 203 and the elastic element mounting portion 202 may be formed by joining together, for example, the elastic element mounting portion 202 and the valve element closed end 203 may be bonded together. The elastic member mounting portion 202 is a mounting portion of the elastic member 3, and the elastic member 3 needs to be fitted to the elastic member mounting portion 202 and can be fitted to the mounting portion. By arranging the elastic piece mounting part 202 and sleeving the elastic piece 3 on the elastic piece mounting part 202, the position of the elastic piece 3 can be fixed. In addition, the central zone of elastic component installation department 202 is equipped with the locating hole, and mount pad 4 can pass elastic component 3 and insert in the locating hole, the utility model discloses a central zone at elastic component installation department 202 sets up the locating hole to the locating hole mutually supports with mount pad 4, can guarantee that case 2 receives the restraint of mount pad 4 in axial displacement, produces the effect of location with this. The locating hole can set up to circular port or interior hexagonal hole, also can set up to other suitable passes, for example interior square hole, all belongs to the utility model discloses a protection scope.

More preferably, as shown in fig. 3 and 4, mounting base 4 includes a base 401 and a positioning post 402, positioning post 402 being connected to base 401. Of course, the positioning column 402 and the base 401 may also be an integrally formed structure, and the positioning column 402 is adapted to the positioning hole and can be inserted into the positioning hole, so as to limit the valve core 2 from moving radially, and thus, the valve core 2 is prevented from deflecting when being opened.

As another preferred embodiment of the present invention, the positioning column 402 may be formed as a cylinder, or may be a square column, as long as it can be inserted into the positioning hole along the circumferential direction of the positioning hole.

As another preferred embodiment of the present invention, the central region of the base 401 is provided with an inner hexagonal recess 403 for easy installation and detachment. It should be noted that the shape of the inner hexagonal socket 403 is adapted to the mounting or dismounting tool, and it is conceivable to use a suitable outer hexagonal wrench as the mounting or dismounting tool for dismounting. The utility model discloses a central zone at base 401 sets up hexagon socket head cap recess 403, design benefit, easily processing to the installation is simple.

As a concrete structural form of the utility model, the through-hole that overflows the passageway and form for the cross section is semi-circular or fan-shaped.

More specifically, the number of the flow channels can be at least two, and as can be seen from fig. 2 and 3, in the mounting seat 4 of an embodiment of the present invention, a total of three flow channels are provided, and each flow channel is uniformly distributed on the periphery of the base 401.

As the utility model discloses a another concrete configuration form, overload structure 5 can insert rivet or pin including cylindrical through-hole or the conical through-hole of setting on base 401 in cylindrical through-hole or the conical through-hole, through inserting rivet or pin in cylindrical through-hole or the conical through-hole, can make the local deformation of cylindrical through-hole or conical through-hole to lead to the vice inefficacy of screw and then produce locking effect, simple structure, and locking effectual.

As another specific structure form of the present invention, the elastic member 3 is a compression spring, which can be sleeved on the elastic member mounting portion 202, and it should be noted that, as shown in fig. 1, the elastic member mounting portion 202 is a protruding structure on the valve element 2, and can be formed into a cylindrical shape, thereby facilitating the installation with the compression spring.

In conclusion, as an optimal embodiment, the utility model discloses a hydraulic check valve includes valve body 1, be equipped with the through-hole on valve body 1, the through-hole includes tip through-hole 101 and middle part through-hole 102, be formed with transition inclined plane 103 between tip through-hole 101 and middle part through-hole 102, be equipped with case 2 in the tip through-hole 101, spring and mount pad 4, case 2 includes case blind end 203 and the elastic component installation department 202 with case blind end 203 integrated into one piece, the central zone of elastic component installation department 202 is equipped with the locating hole, mount pad 4 includes base 401 and the reference column 402 of being connected with base 401, reference column 402 can insert in the locating hole, in order to carry out radial spacing to case 2, connect through threaded structure between base 401 and the valve body 1, the central zone of base 401 is equipped with interior hexagonal recess, and be equipped with overload structure 5 on the mount pad 4, evenly be provided with a plurality of channels 403 that overflows between the border of mount pad 4 and the valve body 1. The utility model discloses a high pressure check valve during operation, mutually supporting between the locating hole on its case 2 and the reference column 402 on the base 401 of mount pad 4, can guarantee that case 2 can not take place to deflect when opening, be equipped with hexagon socket head cap groove 403 on the base 401, the dismouting of being convenient for, the helicitic texture is including setting up the external screw thread of the outer peripheral face of mount pad 4 and setting up the internal thread on the inner peripheral surface of tip through-hole 101, overload structure 5 can be so that the helicitic texture warp the inefficacy, thereby play locking effect to mount pad 4, in addition, the utility model discloses have a plurality of passageways that overflow, be favorable to the circulation of fluid, thereby can reduce loss of pressure, more be applicable to high-pressure pipeline. Therefore, the utility model discloses a high-pressure check valve discharge capacity is big, and loss of pressure is less, excellent in use effect.

The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, however, the present invention is not limited to the details of the above embodiments, and the technical concept of the present invention can be within the scope of the present invention to perform various simple modifications to the technical solution of the present invention, and these simple modifications all belong to the protection scope of the present invention.

It is to be noted that the features of 2022-a8672-CN 8774U 79556CZL heddles described in the above embodiments may be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present invention does not separately describe various possible combinations.

In addition, various embodiments of the present invention can be combined arbitrarily, and the disclosed content should be regarded as the present invention as long as it does not violate the idea of the present invention.

Claims

1. The high-pressure one-way valve is characterized by comprising a valve body (1), through holes are formed in the valve body (1), the through holes comprise end through holes (101) and middle through holes (102), transition inclined planes (103) are formed between the end through holes (101) and the middle through holes (102), a valve core (2) is arranged in the end through holes (101), the valve core (2) is sleeved with an elastic piece (3) and a mounting seat (4) connected with the valve body (1), the front end of the valve core (2) is formed into a spherical surface or a circular truncated cone and can be abutted against the transition inclined planes (103), the mounting seat (4) is far away from one end face of the valve core (2) and is provided with an overload structure (5), the overload structure (5) can be inserted into the mounting seat (4) to enable the mounting seat (4) to be in overload deformation with a threaded connection structure between the end through holes (101) so as to limit the rotation of the mounting seat (4), and a plurality of overcurrent channels (104) are formed between the edge of the mounting seat (4) and the valve body (1).

2. The high pressure check valve according to claim 1, characterized in that the screw connection structure includes an external thread provided on an outer circumferential surface of the mounting seat (4) and an internal thread provided on an inner circumferential surface of the end through hole (101), and the overload structure (5) is inserted into the mounting seat (4) to be able to overload-deform the external thread.

3. The high-pressure check valve according to claim 1, characterized in that the valve core (2) comprises a valve core closed end (203) and an elastic piece mounting part (202) integrally formed with the valve core closed end (203), a positioning hole (201) is formed in a central area of the elastic piece mounting part (202), and the mounting seat (4) can penetrate through the elastic piece (3) and be inserted into the positioning hole (201).

4. The high-pressure check valve according to claim 3, characterized in that the mounting seat (4) comprises a base (401) and a positioning column (402) connected with the base (401), wherein the positioning column (402) can be inserted into the positioning hole (201) to radially limit the valve core (2).

5. The high pressure check valve of claim 4, wherein the locating post (402) is a cylindrical structure.

6. The high pressure check valve of claim 4, characterized in that the central region of the seat (401) is provided with an internal hexagonal recess (403).

7. The high pressure check valve according to claim 4, characterized in that the transfer channel (104) is formed as a through hole with a cross section in a semi-circle or a sector.

8. The high pressure check valve according to claim 7, characterized in that the number of said transfer channels (104) is at least two, and each said transfer channel (104) is uniformly arranged at the periphery of said base (401).

9. The high-pressure non-return valve according to any one of claims 4 to 8, characterised in that the overload structure (5) comprises a cylindrical or conical through hole provided on the base (401), inside which a rivet or pin can be inserted for anti-loosening.

10. The high pressure check valve according to any of claims 1 to 8, characterized in that the elastic member (3) is a compression spring.