CN218094453U

CN218094453U - Check valve

Info

Publication number: CN218094453U
Application number: CN202222631513.5U
Authority: CN
Inventors: 程绍军; 郝立民; 杨宏伟
Original assignee: Mudanjiang Beifang Oilfield Machinery Co ltd
Current assignee: Mudanjiang Beifang Oilfield Machinery Co ltd
Priority date: 2022-10-08
Filing date: 2022-10-08
Publication date: 2022-12-20
Anticipated expiration: 2032-10-08

Abstract

The utility model discloses a check valve, which comprises a valve body, the inside fixedly connected with Z type baffle of valve body, the surface central point of Z type baffle puts and has seted up the turriform through-hole, the top of valve body is run through threaded connection and is had the connecting pipe, sliding connection is run through to the bottom of connecting pipe has the guide arm, the bottom fixedly connected with and turriform through-hole matched with turriform end cap of guide arm. The utility model discloses in, through the adjustment mechanism who sets up, first regulation pole rotates and drives the movable plate lift through the screw thread to can change the height that the turriform end cap rises, and then the size of flow control to a certain extent, and through the closing mechanism who sets up, can change when maintaining the case of check valve and drive two closing plate relative movement, thereby block the both sides of Z type baffle, and then can avoid fluid excessively to spill when the maintenance.

Description

Check valve

Technical Field

The utility model relates to an oil field equipment technical field especially relates to a check valve.

Background

In oil field production, in order to ensure safe operation of crude oil output equipment and an oil transportation system, a check valve is generally arranged at the outlet end of the oil transportation equipment to prevent oil from flowing back;

the existing check valve can not control the flow of oil in the use process and can not meet the requirement of oil extraction in an oil field, and the existing check valve needs to close pipelines at two ends when the valve core is replaced and then is detached, but a large amount of oil exists between the pipelines and the check valve at the moment, and the replacement valve core can leak a lot of oil at the moment, so that waste is caused.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a check valve.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a check valve, includes the valve body, the inside fixedly connected with Z type baffle of valve body, the surface central point of Z type baffle puts and has seted up the turriform through-hole, threaded connection has the connecting pipe to run through at the top of valve body, sliding connection has the guide arm to run through the bottom of connecting pipe, the bottom fixedly connected with and the turriform end cap of turriform through-hole matched with of guide arm, the top of connecting pipe is run through and is installed adjustment mechanism, the internally mounted of valve body has closing mechanism.

Furthermore, the adjusting mechanism comprises a first adjusting rod which penetrates through the top end of the connecting pipe and is in threaded connection with the connecting pipe, and the bottom end of the first adjusting rod is rotatably connected with a moving plate which is in sealed sliding connection with the inner wall of the connecting pipe.

Furthermore, the top end of the first adjusting rod is fixedly connected with a first nut.

Furthermore, the closing mechanism comprises two sealing plates which are centrosymmetrically penetrated through the Z-shaped baffle, the sealing plates are connected with the Z-shaped baffle and the inner wall of the valve body in a sealing sliding mode, the top of the valve body is symmetrically penetrated through and rotatably connected with two second adjusting rods, and the two second adjusting rods are respectively penetrated through the two sealing plates and are in threaded connection with the inner walls of the corresponding sealing plates.

Furthermore, the top ends of the two second adjusting rods are fixedly connected with chain wheels, and a chain is meshed between the two chain wheels.

Furthermore, the upper surface of the valve body is fixedly connected with a protective frame, the two second adjusting rods are located inside the protective frame, and one end of each second adjusting rod penetrates through the protective frame and extends to the outside and is fixedly connected with a second nut.

Furthermore, the both ends of valve body all run through fixed intercommunication and have communicating pipe, the surface of turriform end cap is overlapped in proper order and is equipped with a plurality of sealed pads.

The utility model has the advantages that:

the utility model discloses when using, this check valve, through the adjustment mechanism who sets up, first regulation pole rotates and drives the movable plate through the screw thread and goes up and down to can change the height that the turriform end cap rises, and then the size of controlling flow to a certain extent, and through the closing mechanism who sets up, can change when the case to the check valve is maintained, change and drive two closing plate relative movement, thereby block the both sides of Z type baffle, and then can avoid fluid excessively to spill when the maintenance.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a schematic structural diagram of the adjusting mechanism of the present invention;

fig. 3 is a schematic structural view of the sealing mechanism of the present invention;

fig. 4 is a perspective view of the valve body of the present invention.

Illustration of the drawings:

1. a valve body; 2. a Z-shaped baffle plate; 3. a tower-shaped through hole; 4. a connecting pipe; 5. a guide bar; 6. a tower-shaped plug; 7. a first adjusting lever; 8. moving the plate; 9. a first nut; 10. a sealing plate; 11. a second adjusting lever; 12. a sprocket; 13. a chain; 14. a protective frame; 15. a second nut; 16. and (4) connecting the pipes.

Detailed Description

Fig. 1 to 4 show, relate to a check valve, including valve body 1, the inside fixedly connected with Z type baffle 2 of valve body 1, the surface central point of Z type baffle 2 puts and has seted up turriform through-hole 3, the top of valve body 1 runs through threaded connection has connecting pipe 4, the bottom of connecting pipe 4 runs through sliding connection has guide arm 5, the bottom fixedly connected with of guide arm 5 and turriform end cap 6 with turriform through-hole 3 matched with, the top of connecting pipe 4 runs through and installs adjustment mechanism, the internally mounted of valve body 1 has closing mechanism.

The adjusting mechanism comprises a first adjusting rod 7 which penetrates through the top end of the connecting pipe 4 and is in threaded connection with the connecting pipe 4, the bottom end of the first adjusting rod 7 is rotatably connected with a moving plate 8 which is in sealed sliding connection with the inner wall of the connecting pipe 4, and the first adjusting rod 7 rotates to drive the moving plate 8 to lift through threads, so that the rising height of the tower-shaped plug 6 can be changed, and the flow rate can be controlled to a certain degree.

The top end of the first adjusting rod 7 is fixedly connected with a first nut 9, so that the first adjusting rod 7 can be conveniently rotated.

The closing mechanism includes two closing plates 10 that the central symmetry runs through Z type baffle 2, and sealed sliding connection between the inner wall of closing plate 10 and Z type baffle 2 and valve body 1, the top symmetry of valve body 1 runs through to rotate and is connected with two second regulation poles 11, and two second regulation poles 11 run through two closing plates 10 respectively and with the inner wall threaded connection of

corresponding closing plate

10, 11 screw threads of two second regulation poles revolve to opposite, and two second regulation poles 11 rotate and can drive two closing plate 10 relative movement, thereby block the both sides of Z type baffle 2, and then can avoid excessive the spilling of fluid when the maintenance.

The top ends of the two second adjusting rods 11 are fixedly connected with chain wheels 12, chains 13 are meshed between the two chain wheels 12, and the two second adjusting rods 11 can be driven to rotate simultaneously through the chain wheels 12 and the chains 13.

The upper surface fixed connection of valve body 1 has protecting frame 14, and two second regulation poles 11 all are located protecting frame 14's inside, and the one end of single second regulation pole 11 runs through protecting frame 14 and extends to outside and fixedly connected with second nut 15, is convenient for rotate second regulation pole 11.

Both ends of the valve body 1 are penetrated through and fixedly communicated with communicating pipes 16, and the outer surface of the tower-shaped plug 6 is sequentially sleeved with a plurality of sealing gaskets to increase the sealing property.

When using the check valve, rotate first nut 9 knot and can drive first regulation pole 7 and rotate, first regulation pole 7 rotates and drives movable plate 8 lift through the screw thread, thereby can change the height that turriform end cap 6 rises, and then the size of controlling flow to a certain extent, when the case to the check valve needs to be maintained, rotate second nut 15, drive single second regulation pole 11 and rotate, can drive two second regulation poles 11 simultaneously through sprocket 12 and chain 13 and rotate, 11 screw threads of two second regulation poles revolve to opposite, and two second regulation poles 11 rotate and can drive two closing plate 10 relative movement, thereby block the both sides of Z type baffle 2, and then can avoid fluid excessively to spill when the maintenance.

The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.

Claims

1. A check valve comprising a valve body (1), characterized in that: the inside fixedly connected with Z type baffle (2) of valve body (1), surface central point of Z type baffle (2) puts and has seted up turriform through-hole (3), the top of valve body (1) runs through threaded connection and has connecting pipe (4), sliding connection is run through to the bottom of connecting pipe (4) has guide arm (5), the bottom fixedly connected with and turriform through-hole (3) matched with turriform end cap (6) of guide arm (5), the top of connecting pipe (4) is run through and is installed adjustment mechanism, the internally mounted of valve body (1) has the closing mechanism.

2. A check valve as claimed in claim 1, wherein: the adjusting mechanism comprises a first adjusting rod (7) which penetrates through the top end of the connecting pipe (4) and is in threaded connection with the connecting pipe (4), and the bottom end of the first adjusting rod (7) is rotatably connected with a moving plate (8) which is in sealed sliding connection with the inner wall of the connecting pipe (4).

3. A check valve as claimed in claim 2, wherein: the top end of the first adjusting rod (7) is fixedly connected with a first nut (9).

4. A check valve as claimed in claim 1, wherein: the sealing mechanism comprises two sealing plates (10) which are centrosymmetrically penetrated through a Z-shaped baffle (2), the sealing plates (10) are connected with the inner walls of the Z-shaped baffle (2) and the valve body (1) in a sliding mode in a sealing mode, the top of the valve body (1) is symmetrically penetrated through and rotatably connected with two second adjusting rods (11), and the two second adjusting rods (11) penetrate through the two sealing plates (10) respectively and are in threaded connection with the corresponding inner walls of the sealing plates (10).

5. A check valve according to claim 4, wherein: the top ends of the two second adjusting rods (11) are fixedly connected with chain wheels (12), and chains (13) are meshed between the two chain wheels (12).

6. A check valve according to claim 5, wherein: the upper surface of the valve body (1) is fixedly connected with a protective frame (14), the two second adjusting rods (11) are located inside the protective frame (14), and one end of each second adjusting rod (11) penetrates through the protective frame (14) and extends to the outside and is fixedly connected with a second nut (15).

7. A check valve as claimed in claim 1, wherein: both ends of the valve body (1) are fixedly communicated with communicating pipes (16) in a penetrating mode, and a plurality of sealing gaskets are sequentially sleeved on the outer surface of the tower-shaped plug (6).