CN210623677U

CN210623677U - Hydraulic control locking type one-way valve

Info

Publication number: CN210623677U
Application number: CN201921810982.5U
Authority: CN
Inventors: 郭凯; 王亮
Original assignee: Jinan Longli Hydraulic Device Co ltd
Current assignee: Jinan Longli Hydraulic Device Co ltd
Priority date: 2019-10-26
Filing date: 2019-10-26
Publication date: 2020-05-26
Anticipated expiration: 2029-10-26

Abstract

The utility model discloses a controllable closed check valve of liquid control, which comprises a valve body, be provided with cylindrical through-hole in the valve body, the cylindrical through-hole both ends of valve body are first end cover of fixedly connected with and second end cover respectively, the cylindrical through-hole of valve body is close to first end cover department and is provided with the traveller, the fixedly connected with thimble of traveller terminal surface center department, the thimble runs through the traveller, and with traveller fixed connection, be provided with the case in the circular through-hole of valve body, and the case is located the thimble and is close to second end cover side, the case is close to the second end cover and is provided with the second through-hole. The utility model discloses in, through being provided with the thimble, after third oil feed port injected hydraulic oil, the case plugged up the second oil-out, at this moment if want to let the case loosen the second oil-out, the third oil feed port stops oil feed and third oil feed port begins to absorb oil promptly, hit the case through the thimble simultaneously for the second oil-out can continue the oil, and its reaction rate that has accelerated the case has improved work efficiency.

Description

Hydraulic control locking type one-way valve

Technical Field

The utility model relates to a check valve technical field especially relates to a controllable closed check valve of hydraulic control.

Background

The check valve is commonly called as a check valve, fluid can only flow along the water inlet, and the medium at the water outlet cannot flow back. Check valves are also known as check valves or check valves. For preventing reverse flow of oil in hydraulic systems or for preventing reverse flow of compressed air in pneumatic systems.

The existing hydraulic control lockable one-way valve cannot be quickly opened when being locked, and the working efficiency is lower; and bidirectional flow of the check valve cannot be realized.

Disclosure of Invention

The utility model aims at solving the defects existing in the prior art and providing a hydraulic control locking type one-way valve.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a hydraulic control locking type one-way valve comprises a valve body, wherein a cylindrical through hole is arranged in the valve body, a first end cover and a second end cover are respectively and fixedly connected with two ends of the cylindrical through hole of the valve body, a sliding column is arranged at the position, close to the first end cover, of the cylindrical through hole of the valve body, an ejector pin is fixedly connected with the center of the end face of the sliding column, penetrates through the sliding column and is fixedly connected with the sliding column, a valve core is arranged in the circular through hole of the valve body, the valve core is located at the side, close to the second end cover, of the ejector pin, a second through hole is formed in the valve core, close to the second end cover, a spring is arranged in the second through hole, one end of the spring is fixedly connected into the valve core, the other end of the spring is fixedly connected to the second end cover, a first oil inlet, the valve body is provided with a second oil outlet near the top of the valve core, the second oil outlet is near the second oil inlet, a third oil inlet is arranged at the position of the valve body near the middle of the valve core, a third oil outlet is arranged at the position of the valve body near the valve core, the third oil outlet is arranged at the position of the valve core near the second end cover, a groove is arranged on the side wall of the valve core, a plurality of first through holes are arranged at the position of the groove, and the valve core is penetrated through the plurality of first through holes.

As a further description of the above technical solution:

the sliding column is closely connected with the valve body in a sliding manner.

As a further description of the above technical solution:

the thimble of the sliding column near the first end cover is shorter than that of the sliding column near the second end cover.

As a further description of the above technical solution:

the second through hole is arranged in a circular shape.

As a further description of the above technical solution:

the cross section of the groove is annularly arranged.

As a further description of the above technical solution:

the area of the end face of the valve core close to the thimble is larger than that of the end face of the thimble.

The utility model discloses following beneficial effect has:

1. the utility model discloses a be provided with the thimble, after third oil inlet injected hydraulic oil, the case plugged up the second oil-out, at this moment if want to let the case loosen the second oil-out, the third oil inlet stops oil feed and third oil inlet to begin to inhale the oil promptly, hits the case through the thimble simultaneously and leaves for the second oil-out can continue the oil, and its reaction rate that has accelerated the case has improved work efficiency.

2. The utility model discloses a be provided with traveller and thimble in the valve body, under normal conditions, hydraulic oil is from second oil inlet oil feed, and the oil pressure is greater than spring pressure, can push the valve core and be close to the second end cap and move for the second oil-out is opened, and then hydraulic oil flows out from the second oil-out; the utility model can push the valve core through the thimble, so that the hydraulic oil enters from the second oil outlet and flows out from the second oil inlet after being opened from the second oil outlet; bidirectional flow of the check valve can be realized.

Drawings

Fig. 1 is a front view of a hydraulically controlled latching check valve according to the present invention;

fig. 2 is a schematic diagram of a spring structure of a hydraulically-controlled latching check valve according to the present invention;

fig. 3 is a first schematic operation diagram of a hydraulically controlled latching check valve according to the present invention;

fig. 4 is a second schematic operation diagram of a hydraulically controlled latching check valve according to the present invention;

fig. 5 is a third schematic view of the hydraulically controlled latching check valve according to the present invention.

Illustration of the drawings:

1. a valve body; 11. a first oil inlet; 12. a second oil inlet; 13. a second oil outlet; 14. a third oil outlet; 15. a third oil inlet; 2. a first end cap; 21. a second end cap; 3. a thimble; 31. a traveler; 4. a valve core; 41. a groove; 42. a first through hole; 43. a second through hole; 5. a spring.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; 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 meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-3, the present invention provides an embodiment:

a hydraulic control locking type check valve comprises a valve body 1, a cylindrical through hole is arranged in the valve body 1, two ends of the cylindrical through hole of the valve body 1 are respectively and fixedly connected with a first end cover 2 and a second end cover 21, a sliding column 31 is arranged at the position, close to the first end cover 2, of the cylindrical through hole of the valve body 1, an ejector pin 3 is fixedly connected at the center of the end surface of the sliding column 31, the ejector pin 3 penetrates through the sliding column 31 and is fixedly connected with the sliding column 31, a valve core 4 is arranged in the circular through hole of the valve body 1, the valve core 4 is positioned at the side, close to the second end cover 21, of the ejector pin 3, a second through hole 43 is arranged at the position, close to the second end cover 21, of the valve core 4, a spring 5 is arranged in the second through hole 43, one end of the spring 5 is fixedly connected in the valve core 4, the other end of the spring 5 is, the side wall of the valve body 1 is provided with a second oil inlet 12, the second oil inlet 12 is located between the spool 31 and the valve core 4, a second oil outlet 13 is arranged at the position, close to the top of the valve core 4, of the valve body 1, the second oil outlet 13 is close to the second oil inlet 12, a third oil inlet 15 is arranged at the position, close to the middle of the valve core 4, of the valve body 1, a third oil outlet 14 is arranged at the position, close to the second end cover 21, of the valve core 4, the third oil outlet 14 is arranged at the position, close to the second end cover 21, of the valve core 4, a groove 41 is formed in the side wall of the valve core 4, a plurality of.

The spool 31 is in tight sliding connection with the valve body 1, preventing hydraulic oil from flowing from one end of the spool 31 to the other. The thimble 3 on the side of the spool 31 close to the first end cover 2 is shorter than the side of the spool 31 close to the second end cover 21, so that a sufficient sliding space is left for the spool 4. The second through hole 43 is arranged in a circular shape. The groove 41 is annularly arranged in cross-section to facilitate access to the valve cartridge 4 from a plurality of first through holes 42 of the groove 41. The area of the end surface of the valve core 4 close to the thimble 3 is larger than that of the end surface of the thimble 3, so that the thimble 3 can push the valve core 4 conveniently.

The working principle is as follows: firstly, the work of the one-way valve is completed, oil is fed into the second oil inlet 12, when the oil pressure is greater than the pressure of the spring 5, the valve core 4 can be pushed to move rightwards, the second oil outlet 13 is opened, and hydraulic oil flows out of the second oil outlet 13; then, the locking task of the check valve is completed, hydraulic oil continuously flows out from the second oil outlet 13, at this time, hydraulic oil is injected into the third oil inlet 15, the hydraulic oil flows into the valve core 4 from the groove 41 through the first through hole 42, when the pressure of the hydraulic oil in the valve core 4 is greater than the pressure outside the valve core 4, the valve core 4 can be pushed towards the thimble 3, and the second oil outlet 13 can be locked, if the pressure is greater, the valve core 4 can be continuously pushed, at this time, the third oil outlet 14 can be opened, so that the hydraulic oil in the valve core 4 flows out from the third oil outlet 14, and the function of protecting the valve core 4 is achieved; and finally, completing the bidirectional flow task of the one-way valve, wherein the one-way flow is completed, the hydraulic oil is required to enter the valve body 1 from the second oil outlet 13 and flow out from the second oil inlet 12, the hydraulic oil is injected into the first oil inlet 11, the hydraulic oil pushes the sliding column 31, the ejector pin 3 collides the valve core 4, and the hydraulic oil enters from the second oil outlet 13 and flows out from the second oil inlet 12.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims

1. A hydraulically controlled, lockable one-way valve, comprising a valve body (1), characterized in that: a cylindrical through hole is arranged in the valve body (1), a first end cover (2) and a second end cover (21) are fixedly connected to two ends of the cylindrical through hole of the valve body (1) respectively, a sliding column (31) is arranged at the position, close to the first end cover (2), of the cylindrical through hole of the valve body (1), a thimble (3) is fixedly connected to the center of the end face of the sliding column (31), the thimble (3) penetrates through the sliding column (31) and is fixedly connected with the sliding column (31), a valve core (4) is arranged in the circular through hole of the valve body (1), the valve core (4) is positioned at the side, close to the second end cover (21), of the valve core (4), a second through hole (43) is arranged in the second through hole (43), one end of the spring (5) is fixedly connected in the valve core (4), and the other end of the spring (5) is fixedly connected to the second end cover (21), a first oil inlet (11) is arranged at the position of the valve body (1) close to the first end cover (2), a second oil inlet (12) is arranged on the side wall of the valve body (1), and the second oil inlet (12) is positioned between the sliding column (31) and the valve core (4), a second oil outlet (13) is arranged at the position, close to the top of the valve core (4), of the valve body (1), the second oil outlet (13) is close to the second oil inlet (12), a third oil inlet (15) is arranged at the middle part of the valve body (1) close to the valve core (4), a third oil outlet (14) is arranged at the valve core (4) of the valve body (1), and the third oil outlet (14) is positioned at the position of the valve core (4) close to the second end cover (21), the side wall of the valve core (4) is provided with a groove (41), a plurality of first through holes (42) are formed in the groove (41), and the first through holes (42) penetrate through the valve core (4).

2. A hydraulically controlled latching one-way valve according to claim 1, wherein: the sliding column (31) is tightly connected with the valve body (1) in a sliding manner.

3. A hydraulically controlled latching one-way valve according to claim 1, wherein: the thimble (3) at the side of the sliding column (31) close to the first end cover (2) is shorter than the side of the sliding column (31) close to the second end cover (21).

4. A hydraulically controlled latching one-way valve according to claim 1, wherein: the second through hole (43) is arranged in a circular shape.

5. A hydraulically controlled latching one-way valve according to claim 1, wherein: the cross section of the groove (41) is annularly arranged.

6. A hydraulically controlled latching one-way valve according to claim 1, wherein: the area of the end surface of the valve core (4) close to the thimble (3) is larger than that of the end surface of the thimble (3).