CN218954185U - Automatic closing valve for petroleum exploitation - Google Patents

Abstract

The utility model relates to the technical field of valves, in particular to an automatic closing valve for petroleum exploitation. The technical scheme includes that the valve comprises a hand wheel, a valve body and a valve core, wherein a fixed disc is welded on the upper surface of the valve body, a valve rod is installed at the position of an axis of the upper surface of the fixed disc through a bearing, a spring groove is formed in one side of the upper surface of the fixed disc, a spring A is installed inside the spring groove, a sliding block is connected to the end of the spring A, a spring B is connected to the outer surface of the sliding block, a piston rod is connected to the end of the spring B, a piston head is connected to the end of the piston rod, a piston groove is formed in one side, deviating from the spring groove, of the inner portion of the fixed disc, a hydraulic oil cavity is arranged at the position, close to the rear surface, of the fixed disc, a piston plate is installed inside the hydraulic oil cavity, a rack is installed on the outer surface of the piston plate, and a gear is sleeved on the outer surface of the valve rod. The utility model can automatically close after the valve is manually opened, and prevents the phenomenon of loose valve closing.

Description

Automatic closing valve for petroleum exploitation

Technical Field

The utility model relates to the technical field of valves, in particular to an automatic closing valve for petroleum exploitation.

Background

The valve is a control component in the fluid conveying system and has the functions of stopping, adjusting, guiding, preventing backflow, stabilizing pressure, diverting or overflow pressure relief and the like.

Through massive retrieval, it is typical that an automatic closed type petroleum valve for petroleum exploitation among the prior art is disclosed as the publication number CN209856459U, and an automatic closed type petroleum valve is disclosed, including valve, first body and second body, the left and right sides lower extreme of valve has second body and first body respectively rigid coupling, the outside of first round pin axle all is equipped with the second spring, the both ends of second spring are fixed with first baffle and valve respectively and link to each other, the inside of first baffle is equipped with the sliding ball, the sliding ball rotates with the slender rod through the second round pin axle to link to each other, slender rod and valve clearance fit, and this automatic closed type petroleum valve through the cooperation between valve, spheroid, sealing bearing, sealing washer, gear, slider and the first slider, loosens the handle after the realization spheroid rotates and can realize the rotation state restoration of spheroid, has solved current valve and can't realize automatic closed problem, but in actual operation's in-process because the inside transport medium of valve body exists for the case has great resistance in the process of rotating closed process respectively, only can not drive the valve through the elasticity of compression spring and can not close the valve tightly, and when the valve can not increase the valve and the valve can be closed for the difficult mode appears, and the valve can be closed by the elasticity is difficult to open and close by the valve, and the valve can be closed more than can be difficult to open by the manual mode.

Disclosure of Invention

The utility model aims to provide an automatic closing valve for petroleum exploitation, which has the advantages of being capable of automatically closing after the valve is manually opened, avoiding the phenomenon of loose valve closing, and solving the problems that the valve core in the patent described in the background art has larger resistance in the process of rotating and closing, the valve core can not be well driven to rotate and close only by the elastic force of a compression spring, and the valve core is difficult to rotate, so that the valve is loose in closing, and the valve is difficult to manually open by increasing the elastic force of the spring.

In order to achieve the above purpose, the present utility model provides the following technical solutions: including hand wheel, valve body and case, valve body upper surface welding has the fixed disk, fixed disk upper surface axle center position department installs the valve rod through the bearing, fixed disk upper surface one side is equipped with the spring groove, spring groove internally mounted has spring A, spring A end-to-end connection has the slider, slider surface connection has spring B, spring B end-to-end connection has the piston rod, piston rod end-to-end connection has the piston head, one side that the fixed disk is inside to deviate from the spring groove is equipped with the piston groove, fixed disk inside is close to rear surface position department and is equipped with the hydraulic oil chamber, hydraulic oil chamber internally mounted has the piston plate, piston plate surface mounting has the rack, the gear has been cup jointed to the valve rod surface, surface mounting has the slide bar on the slider.

Preferably, one end of the valve rod, which is positioned in the valve body, is connected with a valve core, the tail end of the valve rod is connected with a hand wheel, and the hand wheel is rotated to drive the valve core to rotate through the valve rod.

Preferably, the outer surface of the sliding rod is symmetrically sleeved with limiting rings at the positions above and below the hand wheel, and the two limiting rings play a limiting role on the sliding rod.

Preferably, the two sides of the valve body are symmetrically welded with the inlet pipe and the outlet pipe, the tail ends of the two inlet pipe and the outlet pipe are welded with flange plates, and the valve is connected with a connecting flange on an external pipeline through the flange plates.

Preferably, the upper surface of the hand wheel is provided with an arc notch, and the slide bar is positioned inside the arc notch.

Compared with the prior art, the utility model has the following beneficial effects:

according to the utility model, through arranging the spring A, the spring groove, the sliding block, the sliding rod, the piston groove, the piston rod, the piston head, the hydraulic oil cavity, the piston plate, the rack and the gear, the valve can be automatically closed after being manually opened, the phenomenon that the valve is not tightly closed is avoided, when the valve is manually opened, the sliding rod drives the sliding block to move in the spring groove, the spring A is compressed, the spring B is stretched, at the moment, the piston rod is elastically pulled by the spring B, the hand wheel is rotated, the gear drives the rack to move, meanwhile, the valve core rotates, the valve is opened, hydraulic oil in the hydraulic oil cavity enters the piston groove, the piston head and the piston rod move in the piston groove, when the sliding rod and the hand wheel are loosened, the compressed spiral spring A is released, the piston rod and the piston head are exerted with elastic action through the sliding block and the spring B, the hydraulic oil in the piston groove enters the hydraulic oil cavity and pushes the piston plate to move, the piston plate drives the gear to rotate through the rack, so that the valve core is driven to rotate and be closed through the valve rod, and the diameter of the piston groove is smaller than the hydraulic oil cavity, the small elastic force can drive the piston plate to move, and the phenomenon that the valve is prevented from being difficult to rotate due to larger resistance when the valve is automatically closed, and the valve is not tightly closed.

Drawings

FIG. 1 is a perspective view of the present utility model;

FIG. 2 is an enlarged schematic view of the structure of FIG. 1A according to the present utility model;

FIG. 3 is a schematic diagram of the front view structure of the present utility model;

fig. 4 is a schematic top view of the fixing plate of the present utility model.

Reference numerals: 1. a hand wheel; 2. a bearing; 3. a valve stem; 4. a flange plate; 5. an inlet pipe and an outlet pipe; 6. a valve body; 7. a valve core; 8. a fixed plate; 9. a spring groove; 10. a spring A; 11. an arc-shaped notch; 12. a slide bar; 13. a limiting ring; 14. a slide block; 15. a hydraulic oil chamber; 16. a piston head; 17. a piston rod; 18. a piston plate; 19. a gear; 20. a rack; 21. a piston groove; 22. and a spring B.

Detailed Description

The technical scheme of the utility model is further described below with reference to the attached drawings and specific embodiments.

As shown in fig. 1 to 4, the utility model provides an automatic closing valve for oil exploitation, which comprises a hand wheel 1, a valve body 6 and a valve core 7, wherein a fixed disk 8 is welded on the upper surface of the valve body 6, a valve rod 3 is installed at the axial center position of the upper surface of the fixed disk 8 through a bearing 2, one end of the valve rod 3 positioned in the valve body 6 is connected with the valve core 7, the end of the valve rod 3 is connected with the hand wheel 1, an arc notch 11 is arranged on the upper surface of the hand wheel 1, a spring groove 9 is arranged on one side of the upper surface of the fixed disk 8, a spring A10 is internally installed in the spring groove 9, the end of the spring A10 is connected with a sliding block 14, the outer surface of the sliding block 14 is connected with a spring B22, the end of the spring B22 is connected with a piston rod 17, the end of the piston rod 17 is connected with a piston head 16, one side of the fixed disk 8, which is far away from the spring groove 9, the piston rod 17 and the piston 16 are both positioned in the piston groove 21, the position near the rear surface position of the fixed disk 8 is provided with a hydraulic oil cavity 15, the diameter of the piston groove 21 is smaller than the hydraulic oil cavity 15, a piston plate 18 is internally installed in the oil cavity 15, a rack 20 is sleeved on the outer surface of the piston plate 18, a gear 19 is sleeved on the outer surface of the valve rod 3, a sliding block 19 is meshed with a gear 19, the gear 20 is connected with the sliding rod 12 and the sliding rod 12 is symmetrically arranged in the two side of the piston rod 12 and the two side of the sliding rod are symmetrically arranged in the piston rod 4 through two side flanges 12 and the two side flanges 12 are connected with the two flange positions 1, and the two side flanges 13 are symmetrically, and the two side of the sliding rod 4 are connected with the two side flange 4 by the side flange 4 and the side and the position and the side and the position of the valve body 4 is positioned by the side and the position and the valve body is positioned by the side and the valve body 4 is positioned and the side and the valve is positioned and the position and the valve is positioned and the 1 and the 4 is the valve.

When the valve is manually opened, the sliding block 14 is driven to move in the spring groove 9 through the sliding rod 12, the spring A10 is compressed, the spring B22 is stretched, the piston rod 17 is subjected to elastic tension of the spring B22, meanwhile, the sliding rod 12 moves in the arc-shaped notch 11, when the sliding rod 12 moves in the arc-shaped notch 11 to be in contact with the hand wheel 1, the hand wheel 1 is driven to rotate 90 degrees through the sliding rod 12, the gear 19 drives the rack 20 to move, the valve core 7 rotates 90 degrees, the valve is opened, hydraulic oil in the hydraulic oil cavity 15 enters the piston groove 21, meanwhile, the piston head 16 and the piston rod 17 move in the piston groove 21, when the sliding rod 12 and the hand wheel 1 are released, the compressed spiral spring A10 releases, and exerts elastic action on the piston rod 17 and the piston head 16 through the sliding block 14 and the spring B22, the hydraulic oil in the piston groove 21 enters the hydraulic oil cavity 15 and pushes the piston plate 18 to move, the piston plate 18 drives the gear 19 to rotate through the rack 20, so that the valve core 7 is driven to be closed through the rotation of the valve rod 3, and the diameter of the piston rod 17 and the piston 16 in the piston groove 21 moves in the piston groove 21 is smaller than the hydraulic oil cavity 15, and the valve 18 can be driven to be closed through the automatic small elastic force, so that the valve 7 is prevented from being difficult to be closed due to the fact that the valve is difficult to be closed.

The above-described embodiments are merely a few preferred embodiments of the present utility model, and many alternative modifications and combinations of the above-described embodiments will be apparent to those skilled in the art based on the technical solutions of the present utility model and the related teachings of the above-described embodiments.

Claims (5)

1. The utility model provides an automatic closing type valve of oil development, includes hand wheel (1), valve body (6) and case (7), its characterized in that: valve body (6) upper surface welding has fixed disk (8), valve rod (3) are installed through bearing (2) in fixed disk (8) upper surface axle center position department, fixed disk (8) upper surface one side is equipped with spring groove (9), spring groove (9) internally mounted has spring A (10), spring A (10) end-to-end connection has slider (14), slider (14) external surface connection has spring B (22), spring B (22) end-to-end connection has piston rod (17), piston rod (17) end-to-end connection has piston head (16), one side that the fixed disk (8) inside deviates from spring groove (9) is equipped with piston groove (21), fixed disk (8) inside is close to back surface position department and is equipped with hydraulic oil chamber (15), hydraulic oil chamber (15) internally mounted has piston plate (18), piston plate (18) external surface mounting has rack (20), valve rod (3) external surface cup joints gear (19), surface mounting has slide bar (12) on slider (14).

2. An automatic shut-off valve for oil production according to claim 1, wherein: one end of the valve rod (3) positioned in the valve body (6) is connected with a valve core (7), and the tail end of the valve rod (3) is connected with a hand wheel (1).

3. An automatic shut-off valve for oil production according to claim 1, wherein: and limiting rings (13) are symmetrically sleeved on the outer surface of the sliding rod (12) at the positions above and below the hand wheel (1).

4. An automatic shut-off valve for oil production according to claim 1, wherein: the two sides of the valve body (6) are symmetrically welded with the inlet pipe (5), and the tail ends of the two inlet pipes (5) are welded with the flange plate (4).

5. An automatic shut-off valve for oil production according to claim 1, wherein: the upper surface of the hand wheel (1) is provided with an arc notch (11), and the sliding rod (12) is positioned in the arc notch (11).

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