Oil extraction wellhead valve with pressure detection device

Abstract

The utility model relates to the technical field of oil production wellhead valves, in particular to an oil production wellhead valve with a pressure detection device, which comprises an oil production wellhead device body and a connecting valve body. A connecting valve body is arranged on the oil extraction wellhead device body, a first connecting block is fixedly arranged on the upper end face of the connecting valve body, a second connecting block is arranged above the first connecting block, a connecting seat is arranged on the second connecting block, and a pressure detection meter is fixedly arranged on the connecting seat; the second connecting block is arranged on the first connecting block through the mounting assembly and the auxiliary assembly; the mounting assembly and the auxiliary assembly are arranged between the first connecting block and the second connecting block at the connecting end of the oil extraction wellhead valve, and the first positioning groove is matched with the sealing ring, the first positioning block, the second positioning block, the second positioning groove and other structures for use, so that the oil extraction wellhead valve is tightly connected with the pressure detection meter; pressure detection data of the pressure detection meter on the oil extraction wellhead valve cannot be influenced, and actual use requirements are met.

Description

Technical Field

[0001] This utility model relates to the field of oil wellhead valve technology, specifically an oil wellhead valve with a pressure detection device. Background Technology

[0002] Chinese patent document CN211648067U discloses an easy-to-clean oil wellhead device. It proposes connecting pipes fixedly connected to the left and right sides of the device body, with the connecting pipes communicating with the device body. A shut-off valve is fixedly installed at the other end of each connecting pipe via a clamp. There are two shut-off valves, one on each side of the device body, with a plug fixedly installed on the left side via a clamp. All components are secured by clamps and fixing pins. The device has few components, a simple structure, and is very easy to disassemble. During cleaning, cleaning fluid is injected into the tubing and squeezed through a threaded plug connector, accelerating the flow of the cleaning fluid and thus speeding up the cleaning of the inside of the oil wellhead device body. The cleaning efficiency is high, the cleaning effect is good, and the detachability of the components further enhances the cleaning effect.

[0003] When performing pressure testing on wellhead valves, most existing pressure gauges are installed on the wellhead valves using clamps. During use, these clamps can become loose or misaligned due to external factors, resulting in an unsecured connection. This affects the pressure testing data of the wellhead valves and fails to meet actual usage requirements. Utility Model Content

[0004] The purpose of this invention is to provide an oil wellhead valve with a pressure detection device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an oil wellhead valve with a pressure detection device, comprising: an oil wellhead device body and a connecting valve body; the oil wellhead device body is provided with a connecting valve body, a first connecting block is fixedly provided on the upper end face of the connecting valve body, a second connecting block is provided above the first connecting block, a connecting seat is provided on the second connecting block, and a pressure detection gauge is fixedly provided on the connecting seat;

[0006] The second connecting block is mounted on the first connecting block using mounting components and auxiliary components.

[0007] Preferably, the installation component includes a first positioning groove, a sealing ring, and a first positioning block; the first positioning groove is fixedly disposed on the upper end face of the first connecting block, and the first positioning groove is adapted to and connected with the first positioning block, and the first positioning block is disposed on the lower end face of the sealing ring.

[0008] Preferably, the upper end face of the sealing ring is provided with a second positioning block, and the second positioning block is adapted to and connected with the second positioning groove on the lower end face of the second connecting block.

[0009] Preferably, the upper end face of the second connecting block is provided with equidistant limiting grooves, and the limiting grooves are adapted to and connected with the limiting block on the lower end face of the second connecting ring.

[0010] Preferably, the auxiliary component includes a positioning hole and a first connecting ring; the positioning hole is fixedly disposed at equal intervals on the first connecting block and the sealing ring, and the second connecting block and the second connecting ring disposed above the sealing ring are both fixedly disposed at equal intervals with fixing holes that are adapted to the positioning hole, and the lower end face of the first connecting block is provided with the first connecting ring.

[0011] Preferably, positioning rods are fixedly provided at equal intervals on the first connecting ring, and the upper end of the positioning rods passes through the positioning holes on the first connecting block and the sealing ring, and the upper end of the positioning rods extends into the fixing holes on the second connecting block and the second connecting ring.

[0012] Preferably, the outer wall of the positioning rod is provided with external threads, and the positioning rod is fixedly connected to the second connecting ring by a provided cross knob.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] This utility model proposes an oil wellhead valve with a pressure detection device. By setting an installation component and an auxiliary component between the first connecting block and the second connecting block at the connection end of the oil wellhead valve, and by cooperating with the first positioning groove, sealing ring, first positioning block, second positioning block, and second positioning groove, the connection between the oil wellhead valve and the pressure gauge is tight and will not affect the pressure detection data of the pressure gauge on the oil wellhead valve, thus meeting the actual use requirements. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the structure connecting the valve body and the pressure gauge of this utility model;

[0017] Figure 3 This is a schematic diagram of the left side of the connecting valve body and the pressure gauge of this utility model;

[0018] Figure 4 This is a schematic diagram of the right side of the connecting valve body and the pressure gauge of this utility model.

[0019] In the diagram: 1. Oil wellhead device body; 2. Connecting valve body; 3. First connecting block; 4. First positioning groove; 5. Sealing ring; 6. First positioning block; 7. Second positioning block; 8. Second connecting block; 9. Second positioning groove; 10. Connecting seat; 11. Limiting groove; 12. Pressure gauge; 13. Positioning hole; 14. First connecting ring; 15. Positioning rod; 16. Second connecting ring; 17. Limiting block; 18. Cross knob. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this utility model clear and complete, the embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some, not all, embodiments of this utility model, and are merely used to explain the embodiments of this utility model. They are not intended to limit the embodiments of this utility model. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0021] Please see Figures 1 to 4 This utility model provides three technical solutions:

[0022] Example 1: An oil wellhead valve with a pressure detection device includes: an oil wellhead device body 1 and a connecting valve body 2; the oil wellhead device body 1 is provided with a connecting valve body 2, a first connecting block 3 is fixedly provided on the upper end face of the connecting valve body 2, a second connecting block 8 is provided above the first connecting block 3, a connecting seat 10 is provided on the second connecting block 8, and a pressure detection gauge 12 is fixedly provided on the connecting seat 10;

[0023] The second connecting block 8 is mounted on the first connecting block 3 via mounting components and auxiliary components.

[0024] Example 2: Based on Example 1, the installation component includes a first positioning groove 4, a sealing ring 5, and a first positioning block 6; the first positioning groove 4 is fixedly disposed on the upper end face of the first connecting block 3, and the first positioning groove 4 is adapted to be connected with the first positioning block 6, and the first positioning block 6 is disposed on the lower end face of the sealing ring 5.

[0025] The upper end face of the sealing ring 5 is provided with a second positioning block 7, and the second positioning block 7 is adapted to and connected to the second positioning groove 9 on the lower end face of the second connecting block 8.

[0026] Limiting grooves 11 are fixedly provided at equal intervals on the upper end surface of the second connecting block 8, and the limiting grooves 11 are adapted to and connected to the limiting block 17 on the lower end surface of the second connecting ring 16.

[0027] Example 3: Based on Example 2, the auxiliary component includes a positioning hole 13 and a first connecting ring 14; the positioning hole 13 is fixedly disposed at equal intervals on the first connecting block 3 and the sealing ring 5, and the second connecting block 8 and the second connecting ring 16 disposed above the sealing ring 5 are both fixedly disposed at equal intervals with fixing holes that are adapted to the positioning hole 13, and the lower end face of the first connecting block 3 is provided with the first connecting ring 14.

[0028] Positioning rods 15 are fixedly arranged at equal intervals on the first connecting ring 14, and the upper end of the positioning rods 15 passes through the fixing holes on the first connecting block 3 and the sealing ring 5.

[0029] The outer wall of the positioning rod 15 is provided with external threads, and the positioning rod 15 is fixedly connected to the second connecting ring 16 through the provided cross knob 18.

[0030] In use, firstly, a connecting valve body 2 is installed on the main body 1 of the oil wellhead device. The first connecting block 3 on the upper end face of the connecting valve body 2 is connected to the sealing ring 5. The first positioning groove 4 on the first connecting block 3 is connected to the first positioning block 6 at the bottom of the sealing ring 5. The second positioning block 7 on the upper end face of the sealing ring 5 is connected to the second positioning groove 9 at the bottom of the second connecting block 8. The limiting groove 11 on the end face of the second connecting block 8 is connected to the limiting block 17 at the bottom of the second connecting ring 16. After positioning, the first connecting ring 14 is snapped onto the outer wall of the connecting valve body 2. The upper end of the positioning rod 15 on the first connecting ring 14 passes through the first connecting block 3 and the sealing ring 5. The upper end of the positioning rod 15 extends into the fixing hole on the second connecting block 8 and the second connecting ring 16. After the cross knob 18 is threadedly connected to the end of the positioning rod 15, the cross knob 18 is rotated to fix it.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An oil wellhead valve with a pressure detection device, comprising: The wellhead device body (1) and the connecting valve body (2) are provided on the wellhead device body (1). A first connecting block (3) is fixedly provided on the upper end face of the connecting valve body (2). A second connecting block (8) is provided above the first connecting block (3). A connecting seat (10) is provided on the second connecting block (8). A pressure gauge (12) is fixedly provided on the connecting seat (10). The feature is that the second connecting block (8) is mounted on the first connecting block (3) by means of an installation component and an auxiliary component.

2. The wellhead valve with pressure detection device according to claim 1, characterized in that: The installation assembly includes a first positioning groove (4), a sealing ring (5), and a first positioning block (6); the first positioning groove (4) is fixedly disposed on the upper end face of the first connecting block (3), and the first positioning groove (4) is adapted to be connected with the first positioning block (6), and the first positioning block (6) is disposed on the lower end face of the sealing ring (5).

3. The wellhead valve with pressure detection device according to claim 2, characterized in that: The upper end face of the sealing ring (5) is provided with a second positioning block (7), and the second positioning block (7) is adapted to be connected to the second positioning groove (9) on the lower end face of the second connecting block (8).

4. The wellhead valve with pressure detection device according to claim 3, characterized in that: The upper end face of the second connecting block (8) is provided with a limiting groove (11) at equal intervals, and the limiting groove (11) is adapted to and connected with the limiting block (17) on the lower end face of the second connecting ring (16).

5. The wellhead valve with pressure detection device according to claim 1, characterized in that: The auxiliary components include positioning holes (13) and a first connecting ring (14); the positioning holes (13) are fixedly arranged at equal intervals on the first connecting block (3) and the sealing ring (5), and the second connecting block (8) and the second connecting ring (16) arranged above the sealing ring (5) are both fixedly arranged at equal intervals with fixing holes that are compatible with the positioning holes (13), and the lower end face of the first connecting block (3) is provided with the first connecting ring (14).

6. The wellhead valve with pressure detection device according to claim 5, characterized in that: Positioning rods (15) are fixedly arranged at equal intervals on the first connecting ring (14), and the upper end of the positioning rods (15) passes through the positioning holes (13) on the first connecting block (3) and the sealing ring (5), and the upper end of the positioning rods (15) extends into the fixing holes on the second connecting block (8) and the second connecting ring (16).

7. The wellhead valve with pressure detection device according to claim 6, characterized in that: The outer wall of the positioning rod (15) is provided with external threads, and the positioning rod (15) is fixedly connected to the second connecting ring (16) through the provided cross knob (18).

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