CN203404479U - Anti-theft device of valve - Google Patents

Abstract

The utility model relates to the technical field of anti-theft devices, and relates to a valve anti-theft device used for oil production wellheads and oil outlets of oil storage tanks in oil fields. It is fixed inside the conical spool, and the upper part of the valve body is welded with a lock sleeve and a gate cover in turn; the bottom of the screw is a square structure and is connected with the conical spool, the top is a pentagonal structure, and the upper part of the screw is sequentially covered with Large spring, lower bushing, round lock disc and upper bushing. The advantage of the utility model is that the size of the small spring and the lock cylinder are different, and the disc-shaped unlocking device provided on the top of the gate cover must be used together to achieve a good anti-theft purpose for the valves of the wellhead and the oil pipeline.

Description

Valve anti-theft device

technical field

The utility model relates to the technical field of anti-theft devices, in particular to a valve anti-theft device used for oil production wellheads and oil outlets of oil storage tanks in oil fields.

Background technique

At present, valves are indispensable devices in oil production wellheads, oil storage tank outlets, and gate valve control points of oil pipelines. They are used to cut off or adjust the flow of fluid in pipelines. Many oil pipelines have long installation paths and wide Large, especially large-scale oil fields, due to the large area of the oil field involved, the monitoring and anti-theft measures are not enough, the oil field crude oil at the oil production wellhead, the oil outlet of the oil storage tank, and the gate valve control point of the oil pipeline is stolen from time to time. The normal production and work will be seriously affected, and may cause huge economic losses.

Utility model content

The purpose of the utility model is to provide a valve anti-theft device with strong anti-theft function aiming at the shortcomings of the existing oilfield wellhead anti-theft device.

The technical solution of the utility model is: a valve anti-theft device, which is characterized in that it is mainly composed of a valve body, a conical valve core, a circular lock disc and a screw, and the valve body is fixed inside the conical valve core , the upper part of the valve body is welded with a lock sleeve and a gate cover in turn; the bottom end of the screw is a square structure and is connected with the conical valve core, the top is a pentagonal structure, and the upper part of the screw is sequentially covered with a large spring, a lower bush, a round Form-lock disc and upper bushing.

Preferably, four square slots are evenly distributed on the circular lock disc, each square slot is equipped with a lock cylinder of different sizes, and the bottom of each lock cylinder is equipped with a small spring of different sizes.

Preferably, four square grooves are evenly distributed on the lock sleeve, the lock cylinder is built into the four square grooves of the lock sleeve, and a circular hole is provided between the lock cylinder and the lock sleeve.

Preferably, a disc-shaped unlocking device is provided above the gate cover, and the device is equipped with four pillars of different lengths, and the pillars can be vertically inserted into the circular hole.

Preferably, the circular lock disc is located between the upper bush and the lower bush, the upper bush supports the circular lock disc, and the lower bush presses the circular lock disc.

The beneficial effects of the utility model compared with the prior art are:

The valve anti-theft device of the present utility model is installed at the valve of the wellhead and the oil pipeline, and is mainly composed of a valve body, a conical valve core, a circular lock plate and a screw. The disc-shaped unlocking device makes it difficult for thieves to open the valve. The disc-shaped unlocking device on the top of the gate cover must be used in conjunction with it to achieve a good anti-theft purpose for the valves of the wellhead and the oil pipeline.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Fig. 2 is a structural schematic diagram of the unlocking device of the present invention.

In the figure, 1—tapered spool, 2—valve body, 3—large spring, 4—small spring, 5—lower bush, 6—circular lock disc, 7—lock cylinder, 8—upper bush, 9 —lock sleeve, 10—gate cover, 11—unlocking device, 12—lead screw, 13—wrench

Detailed ways

The specific embodiment of the utility model is described below in conjunction with accompanying drawing:

Referring to Figure 1 and Figure 2, a valve anti-theft device is mainly composed of a valve body 2, a conical valve core 1, a circular lock plate 6 and a screw 12, the valve body 2 is fixed inside the conical valve core 1, and the valve The upper part of the body 2 is sequentially welded with a lock sleeve 9 and a gate cover plate 10; the bottom end of the lead screw 12 is a square structure and is connected with the conical valve core 1, and the top end is a pentagonal structure, and the upper part of the lead screw 12 is sequentially covered with a large spring 3, Lower bushing 5, circular locking disc 6 and upper bushing 8.

Four square grooves are evenly distributed on the circular lock disc 6, and a lock cylinder 7 with different sizes is installed on each square groove top, and a small spring 4 with different sizes is installed at the bottom of each lock cylinder 7.

Four square grooves are evenly distributed on the lock sleeve 9, and the lock cylinder 7 is built into the four square grooves of the lock sleeve 9, and a circular hole is arranged between the lock cylinder 7 and the lock sleeve 9.

The top of the gate cover plate 10 is also provided with a disc-shaped unlocking device 11, which is evenly equipped with four pillars of different lengths, and the pillars can be vertically inserted into the inside of the circular hole between the lock cylinder 7 and the lock sleeve 9.

The circular lock disc 6 is located in the middle of the upper bush 8 and the lower bush 5 , the upper bush 8 supports the circular lock disc 6 , and the lower bush 5 presses the circular lock disc 6 .

When unlocking, align the unlocking device 11 with the gate cover 10, insert the four pillars of different lengths of the unlocking device 11 vertically into the circular hole between the lock cylinder 7 and the lock sleeve 9, and press down on the lower part of the lock cylinder 7 at the same time The small spring 4 of each lock column 7 is consistent in height, and is consistent with the position of the circular lock disc 6. At the same time, with the help of the wrench 13, by rotating the lead screw 12 and the circular lock plate 6, the conical valve core 1 is driven to rotate, thereby realizing the opening and closing of the valve.

Claims (5)

1. A valve anti-theft device, characterized in that: it is mainly composed of a valve body, a conical spool, a circular lock plate and a lead screw, the valve body is fixed inside the conical spool, and the upper part of the valve body is welded in sequence There are lock sleeves and gate cover plates; the bottom end of the screw is square and connected to the conical valve core, and the top is pentagonal. The upper part of the screw is sequentially covered with a large spring, a lower bush, a circular lock plate and an upper lining. set. 2. The valve anti-theft device according to claim 1, characterized in that: four square grooves are evenly distributed on the circular lock plate, and each square groove upper part is equipped with a lock column with different sizes, each A small spring of different sizes is installed on the bottom of the lock cylinder. 3. The valve anti-theft device according to claim 2, characterized in that: four square grooves are evenly distributed on the lock sleeve, the lock cylinders are built into the four square grooves of the lock sleeve, and there is an arrangement between the lock cylinder and the lock sleeve. With circular holes. 4. The anti-theft device for valves according to claim 3, characterized in that: a disc-shaped unlocking device is provided above the gate cover, and four pillars of different lengths are evenly arranged on the device, and the pillars can be inserted vertically Inside the circular hole. 5. The valve anti-theft device according to claim 1, characterized in that: the circular locking disc is located between the upper bush and the lower bush, the upper bush supports the circular locking disc, and the lower bush presses the circular locking disc. Shape lock plate.

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