CN216894332U

CN216894332U - Fracturing gas production wellhead valve with self-sealing structure

Info

Publication number: CN216894332U
Application number: CN202220329678.4U
Authority: CN
Inventors: 沈明华
Original assignee: Yancheng Dongjie Petroleum Machinery Co ltd
Current assignee: Yan'an Xiongying Industry and Trade Co.,Ltd.
Priority date: 2022-02-18
Filing date: 2022-02-18
Publication date: 2022-07-05
Anticipated expiration: 2032-02-18

Abstract

The utility model discloses a fracturing gas production wellhead valve with a self-sealing structure, which relates to the technical field of petroleum machinery and comprises a valve body, a hand wheel, a valve rod and a valve plate, wherein a positioning block is arranged below the hand wheel, concave holes are formed in the outer walls of two sides of the positioning block, a shell is arranged on two sides of the positioning block, a straight hole is formed in the middle of the upper surface of the shell, a connecting rod is movably arranged inside the straight hole, a connecting plate is welded at the top end of the connecting rod, pins are symmetrically inserted at the edge of the surface of the connecting plate and penetrate through the connecting plate, a convex block is symmetrically and fixedly connected at the edge of the upper surface of the shell, a pin hole is formed in the surface of the convex block, and a convex column is movably arranged at the end part of the shell and penetrates through the end part of the shell to be inserted and connected with the concave hole formed in the positioning block, so that the valve rod is positioned, and the valve plate can be effectively prevented from rotating inside the valve body, thereby improving the sealing effect of the valve body.

Description

Fracturing gas production wellhead valve with self-sealing structure

Technical Field

The utility model relates to the technical field of petroleum machinery, in particular to a fracturing gas production wellhead valve with a self-sealing structure.

Background

The valve is a control part in the fluid conveying system and has the functions of stopping, adjusting, guiding, preventing counter flow, stabilizing pressure, shunting or overflowing and relieving pressure and the like; the airtight valve is also called as an airtight valve, is auxiliary equipment capable of dividing a ventilation system into a plurality of areas, has good air tightness, and can meet the zero leakage requirement on special occasions.

The fracturing gas production wellhead valve of the existing self-sealing structure mainly has the following defects: because the pressure of gas recovery well mouth department is great, under the effect of pressure, because the valve rod bottom is the screw thread and rotates the connected mode, therefore the valve plate drives the valve rod easily and rotates to lead to appearing the clearance between valve body inboard and the valve plate, lead to the sealed effect of valve body not good.

SUMMERY OF THE UTILITY MODEL

For solving above-mentioned technical problem, provide and a fracturing gas production well head valve of self sealss structure, this technical scheme has solved because the pressure of gas production well head department is great, under the effect of pressure, because the valve rod bottom is the screw thread and rotates the connected mode, therefore the valve plate drives the valve rod easily and rotates to lead to appearing the clearance between valve body inboard and the valve plate, lead to the not good problem of sealed effect of valve body.

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

the utility model provides a fracturing gas production well head valve of self sealss structure, includes valve body, hand wheel, valve rod and valve plate, the hand wheel below is equipped with the locating piece, and the shrinkage pool has all been seted up to locating piece both sides outer wall, the casing is all installed to the locating piece both sides, a word hole has been seted up at casing upper surface middle part, a word inboard activity is equipped with the connecting rod, the welding of connecting rod top has the connecting plate, connecting plate surface edge symmetry is pegged graft there is the pin, and the pin runs through the connecting plate, casing upper surface edge symmetry fixedly connected with lug, the pinhole has been seted up on the lug surface, the shell end activity is equipped with the projection, the inboard symmetry welding of casing has the guide bar, the stereoplasm spring has been cup jointed to the guide bar outer wall, stereoplasm spring one side activity is equipped with the slider.

As a preferred technical scheme of the utility model, the positioning block is welded on the outer wall of the valve rod, the positioning block is arranged in a square structure, the convex column penetrates through the shell, the penetrating end of the convex column is welded with the sliding block, the convex column corresponds to a concave hole formed in the outer wall of the positioning block, and the convex column and the concave hole form an embedded structure.

As a preferred technical scheme of the utility model, the bottom of the shell is fixedly connected with an installation plate, and the edges of the surface of the installation plate are symmetrically provided with through holes.

According to a preferable technical scheme of the utility model, the middle part of the upper surface of the connecting plate is fixedly connected with a handle, the outer wall of the handle is wrapped with a salient point rubber pad, and the bottom end of the connecting rod is connected with the upper surface of the sliding block in a welding manner.

As a preferable technical scheme of the utility model, the pin corresponds to a pin hole formed on the surface of the bump, and the inner diameter of the pin hole is matched with the outer diameter of the bottom end of the pin.

As a preferred technical scheme of the utility model, the extension length of the hard spring is the same as that of the guide rod, the outer diameter of the guide rod is matched with the inner diameter of the hard spring, the guide rod penetrates through the sliding block, a through hole is formed in the insertion position of the sliding block and the guide rod, the inner diameter of the through hole is matched with that of the guide rod, and the side wall of the sliding block is abutted against one end of the hard spring.

Compared with the prior art, the utility model has the beneficial effects that: when the valve plate is in the open mode, peg graft the inboard in the pinhole that the lug surface was seted up in the pin bottom, thereby fix a position the slider, cup joint the stereoplasm spring on the guide bar this moment and be compressed deformation by the slider, the projection is located the inboard of casing simultaneously, when the valve plate is in the state of closing, the shrinkage pool that locating piece outer wall department seted up just in time is corresponding with the projection, extract the pin through the manual work, make the pin bottom break away from the pinhole, thereby make slider cooperation guide bar reset under the elastic force of stereoplasm spring, thereby the shrinkage pool that welded projection passed on the messenger's slider and seted up on casing tip and the locating piece is pegged graft and is linked to each other, thereby fix a position the valve rod, can effectually avoid the valve plate to rotate in the valve body inboard, and then can improve the sealed effect of valve body.

Drawings

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

FIG. 2 is a schematic view of the present invention from another perspective;

FIG. 3 is a schematic view of the positioning block structure of the present invention;

FIG. 4 is a schematic view of the exterior of the housing of the present invention;

fig. 5 is a schematic view of the internal structure of the housing according to the present invention.

The reference numbers in the figures are:

1. a valve body; 101. a hand wheel; 102. a valve stem; 103. a valve plate;

2. positioning blocks; 201. concave holes;

3. a housing; 301. mounting a plate; 302. a straight hole; 303. a connecting rod; 304. a connecting plate; 305. a handle; 306. a pin; 307. a bump; 308. a pin hole; 309. a convex column; 310. a guide bar; 311. a hard spring; 312. a slide block.

Detailed Description

The following description is presented to disclose the utility model so as to enable any person skilled in the art to practice the utility model. The preferred embodiments in the following description are given by way of example only, and other obvious variations will occur to those skilled in the art.

Referring to fig. 1-5, a fracturing gas production wellhead valve with a self-sealing structure comprises a valve body 1, a hand wheel 101, a valve rod 102 and a valve plate 103, wherein a positioning block 2 is arranged below the hand wheel 101, concave holes 201 are formed in the outer walls of two sides of the positioning block 2, a shell 3 is arranged on two sides of the positioning block 2, a straight hole 302 is formed in the middle of the upper surface of the shell 3, a connecting rod 303 is movably arranged inside the straight hole 302, a connecting plate 304 is welded at the top end of the connecting rod 303, pins 306 are symmetrically inserted at the edge of the surface of the connecting plate 304 and penetrate through the connecting plate 304, bumps 307 are symmetrically and fixedly connected at the edge of the upper surface of the shell 3, pin holes 308 are formed in the surface of the bumps 307, protruding columns 309 are movably arranged at the end of the shell 3, guide rods 310 are symmetrically welded inside the shell 3, a hard spring 311 is sleeved on the outer wall of the guide rods 310, a slide block 312 is movably arranged on one side of the hard spring 311, and the positioning block 2 is welded at the outer wall of the valve rod 102, the positioning block 2 is arranged in a square structure, the convex column 309 penetrates through the shell 3, the penetrating end of the convex column 309 is connected with the sliding block 312 in a welding mode, the convex column 309 corresponds to the concave hole 201 formed in the outer wall of the positioning block 2, the convex column 309 and the concave hole 201 form an embedded structure, the pin 306 corresponds to the pin hole 308 formed in the surface of the convex block 307, the inner diameter of the pin hole 308 is matched with the outer diameter of the bottom end of the pin 306, the unfolding length of the hard spring 311 is the same as that of the guide rod 310, the outer diameter of the guide rod 310 is matched with that of the hard spring 311, the guide rod 310 penetrates through the sliding block 312, a through hole is formed in the joint of the sliding block 312 and the guide rod 310, the inner diameter of the through hole is matched with that of the guide rod 310, and the side wall of the sliding block 312 is abutted against one end of the hard spring 311; when the valve plate 103 is in an open state, the bottom end of the pin 306 is inserted into the inner side of the pin hole 308 formed in the surface of the convex block 307, so as to position the slider 312, the hard spring 311 sleeved on the guide rod 310 is compressed and deformed by the slider 312, meanwhile, the convex column 309 is positioned on the inner side of the housing 3, when the valve plate 103 is in a closed state, the concave hole 201 formed in the outer wall of the positioning block 2 just corresponds to the convex column 309, the pin 306 is manually pulled out, so that the bottom end of the pin 306 is separated from the pin hole 308, so that the slider 312 is matched with the guide rod 310 to reset under the elastic acting force of the hard spring 311, so that the convex column 309 welded on the slider 312 penetrates through the end of the housing 3 to be inserted and connected with the concave hole 201 formed on the positioning block 2, so as to position the valve rod 102, the valve plate 103 can be effectively prevented from rotating inside the valve body 1, and the sealing effect of the valve body 1 can be improved.

Referring to fig. 1, the bottom of the housing 3 is fixedly connected with a mounting plate 301, and the edge of the surface of the mounting plate 301 is symmetrically provided with via holes, so that the housing 3 is conveniently mounted and fixed on the valve body 1.

Referring to fig. 4 and 5, a handle 305 is fixedly connected to the middle of the upper surface of the connecting plate 304, a protruding point rubber pad is wrapped on the outer wall of the handle 305, the bottom end of the connecting rod 303 is connected with the upper surface of the sliding block 312 in a welding mode, the connecting rod 303 is conveniently dragged to slide by the aid of the handle 305, the protruding point rubber pad is arranged on the handle 305, and friction force between the handle 305 and the hand of an operator can be improved.

The working principle is as follows: when the valve plate 103 is in an opening state, the bottom end of the pin 306 is inserted into the inner side of the pin hole 308 formed in the surface of the convex block 307, so that the sliding block 312 is positioned, the hard spring 311 sleeved on the guide rod 310 is compressed and deformed by the sliding block 312, meanwhile, the convex column 309 is positioned on the inner side of the shell 3, when the valve plate 103 is in a closing state, the concave hole 201 formed in the outer wall of the positioning block 2 is just corresponding to the convex column 309, the pin 306 is manually pulled out, so that the bottom end of the pin 306 is separated from the pin hole 308, the sliding block 312 is matched with the guide rod 310 to reset under the elastic acting force of the hard spring 311, so that the convex column 309 welded on the sliding block 312 penetrates through the end of the shell 3 to be inserted and connected with the concave hole 201 formed on the positioning block 2, so that the valve rod 102 is positioned, and the valve plate 103 can be effectively prevented from rotating on the inner side of the valve body 1.

The foregoing shows and describes the general principles, essential features, and advantages of the utility model. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are merely illustrative of the principles of the utility model, but that various changes and modifications may be made without departing from the spirit and scope of the utility model, which fall within the scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a fracturing gas production well head valve of self sealss structure, includes valve body (1), hand wheel (101), valve rod (102) and valve plate (103), its characterized in that: the hand wheel (101) is provided with a positioning block (2) below, concave holes (201) are formed in outer walls of two sides of the positioning block (2), the shell (3) is installed on two sides of the positioning block (2), a straight hole (302) is formed in the middle of the upper surface of the shell (3), a connecting rod (303) is arranged in the inner side of the straight hole (302) in a movable mode, a connecting plate (304) is welded to the top end of the connecting rod (303), pins (306) are symmetrically inserted into the edge of the surface of the connecting plate (304) and penetrate through the connecting plate (304), bumps (307) are symmetrically and fixedly connected to the edge of the upper surface of the shell (3), pin holes (308) are formed in the surface of the bumps (307), convex columns (309) are arranged in the end portion of the shell (3) in a movable mode, guide rods (310) are symmetrically welded to the inner side of the shell (3), and hard springs (311) are sleeved on the outer walls of the guide rods (310), and a sliding block (312) is movably arranged on one side of the hard spring (311).

2. The fracturing gas production wellhead valve of self-sealing structure according to claim 1, characterized in that: locating piece (2) welding is in valve rod (102) outer wall department, and locating piece (2) are the setting of square structure, casing (3) are run through in projection (309), and the end that runs through of projection (309) links to each other with slider (312) welding, projection (309) are corresponding with shrinkage pool (201) that locating piece (2) outer wall was seted up, and projection (309) and shrinkage pool (201) constitute embedded structure.

3. The fracturing gas production wellhead valve of self-sealing structure according to claim 1, characterized in that: casing (3) bottom fixedly connected with mounting panel (301), and mounting panel (301) surface edge symmetry has seted up the via hole.

4. The fracturing gas production wellhead valve of self-sealing structure according to claim 1, characterized in that: the middle part of the upper surface of the connecting plate (304) is fixedly connected with a handle (305), the outer wall of the handle (305) is wrapped with a salient point rubber pad, and the bottom end of the connecting rod (303) is connected with the upper surface of the sliding block (312) in a welding mode.

5. The fracturing gas production wellhead valve of self-sealing structure according to claim 1, characterized in that: the pin (306) corresponds to a pin hole (308) formed in the surface of the bump (307), and the inner diameter of the pin hole (308) is matched with the outer diameter of the bottom end of the pin (306).

6. The fracturing gas production wellhead valve of self-sealing structure according to claim 1, characterized in that: the extension length of stereoplasm spring (311) is the same with guide bar (310), and guide bar (310) external diameter and stereoplasm spring (311) internal diameter looks adaptation, slider (312) are run through in guide bar (310), the through-hole has been seted up with guide bar (310) grafting department in slider (312), and through-hole internal diameter and guide bar (310) external diameter phase-match, slider (312) lateral wall and stereoplasm spring (311) one end looks butt.