Four-way valve connecting structure special for mobile vehicle

Abstract

The utility model discloses a special four-way valve connecting structure for a mobile vehicle, which comprises a mother pipe, a mandrel pipe is arranged in the middle of the mother pipe, one end of the mandrel pipe is hermetically connected with the mother pipe, a longitudinal pipe joint is arranged on one side of the mother pipe, an oil nozzle joint is arranged at one end of the mandrel pipe, and a customized oil nozzle is arranged in the oil nozzle joint. The other end of the core shaft pipe is provided with a first axial pipe joint, the other side of the mother pipe is provided with a pipe plug, and the first axial pipe joint is further provided with a detachable extension component. The oil pipe connector can be quickly connected with a wellhead oil nozzle pipe sleeve, can be conveniently connected with a movable oil measuring truck, and is small in size, convenient to connect and operate and high in practicability. The mandrel pipe can be lengthened, the oil conveying length of the device is greatly increased, oil conveying operation can be conducted according to different positions, and the application range is wide.

Description

Technical Field

[0001] The utility model relates to a mobile metering technology, in particular to a four-way valve connection structure dedicated to a mobile vehicle. Background Art

[0002] Oil well production is an important basis for reflecting the law of oil and water changes in the oil layer, testing production management measures, and analyzing dynamic changes. In the actual production process of the oil field, due to the influence of their own production capacity and ground conditions, it is difficult to measure the production of some oil wells through metering stations. Mobile oil well metering devices are needed to measure the oil well production, usually using mobile oil measuring vehicles for measurement.

[0003] The current mobile oil measuring vehicle has poor connection sealing and stability when connected to the oil pipeline. At the same time, it is connected through a traditional four-way valve, which is large in size and has poor diversion effect. It is also unable to extend the length of the oil pipeline according to the location of the mobile oil measuring vehicle, and has limitations in use. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a four-way valve connection structure dedicated to a mobile vehicle, which solves the problems that when the current mobile oil measuring vehicle is connected to the oil pipeline, its connection sealing and stability are poor, and at the same time, it is connected through a traditional four-way valve, which is large in size and has a poor flow guidance effect, and it is impossible to extend the length of the oil pipeline according to the position of the mobile oil measuring vehicle, and there are limitations in its use.

[0005] In order to solve the above technical problems, the utility model provides a four-way valve connection structure dedicated to a mobile vehicle, including a mother pipe, a core shaft tube is arranged in the middle of the mother pipe, one end of the core shaft tube is sealed and connected to the mother pipe, a longitudinal pipe joint is arranged on one side of the mother pipe, a nozzle joint is arranged at one end of the core shaft tube, a customized nozzle is arranged in the nozzle joint, a first axial pipe joint is arranged at the other end of the core shaft tube, a pipe plug is arranged on the other side of the mother pipe, and a detachable extension component is also arranged on the first axial pipe joint.

[0006] Preferably, a rubber sealing ring is provided at the connection between the core tube and the mother tube, thereby improving the sealing performance of the connection between the core tube and the mother tube.

[0007] Preferably, a sealing nut is also sleeved on one side of the core shaft tube, a sealing pressure ring is also arranged inside the sealing nut, and the sealing nut is locked on the mother tube, thereby further improving the sealing performance of the connection between the core shaft tube and the mother tube.

[0008] Preferably, an O-ring is further provided on the outer surface of the oil nozzle joint to improve the sealing performance of the connection with the wellhead oil nozzle sleeve.

[0009] Preferably, the extension assembly includes an extension core tube, an axial sleeve is arranged at one end of the extension core tube, and a second axial pipe joint is arranged at the other end of the extension core tube. The axial sleeve can be connected with the first axial pipe joint by snapping, so as to extend the length of the oil pipeline.

[0010] Preferably, a positioning block is provided on the outer surface of the first axial pipe joint, and the positioning block is clamped in a positioning slot. The positioning slot is provided on the inner wall of the axial sleeve, and can position the connection between the axial sleeve and the first axial pipe joint.

[0011] Preferably, a groove is further provided on the outer surface of the first axial pipe joint, a fixing pin is provided in the groove, a return spring is provided in the groove, one end of the return spring is connected to the fixing pin, the fixing pin is clamped in the fixing interface, and the fixing interface is provided on the axial sleeve to position the fixing pin and connect the axial sleeve to the first axial pipe joint.

[0012] Preferably, a push pin is movably arranged in the fixed interface, which can separate the fixed pin from the fixed interface to facilitate disassembly of the axial sleeve and the first axial pipe joint. Limit blocks are arranged on both sides of the push pin, and the limit blocks are slidably arranged in the limit grooves. The limit grooves are arranged on both sides of the inner wall of the fixed interface, which can limit the moving position of the push pin.

[0013] The beneficial effects of the utility model are:

[0014] 1. The utility model can be quickly connected with the wellhead nozzle sleeve and conveniently connected with a mobile oil measuring vehicle, and has small size, convenient connection operation and good flow conductivity.

[0015] 2. The utility model can lengthen the core shaft tube, greatly increasing the oil delivery length of the device, and can perform oil delivery operations according to different positions, with a wide range of uses. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the utility model from the first perspective;

[0017] Figure 2 It is a structural schematic diagram of the utility model from a second viewing angle;

[0018] Figure 3 This is a schematic diagram of the main cross-sectional structure of the utility model;

[0019] Figure 4 for Figure 2 A partial enlarged structural diagram of the middle A part;

[0020] Figure 5 It is a schematic diagram of the main cross-sectional structure of the extended component when assembled in the utility model;

[0021] Figure 6 for Figure 5 A schematic diagram of the partial enlarged structure of the middle B part;

[0022] Figure 7 This is a schematic diagram of the main cross-sectional structure of the utility model when in use;

[0023] In the figure: 1. mother pipe, 2. longitudinal pipe joint, 3. rubber sealing ring, 4. sealing pressure ring, 5. sealing nut, 6. core shaft pipe, 7. oil nozzle joint, 8. customized oil nozzle, 9. pipe plug, 10. first axial pipe joint, 11. axial sleeve, 12. extended core pipe, 13. second axial pipe joint, 14. O-ring, 15. positioning block, 16. positioning slot, 17. fixed interface, 18. reset spring, 19. groove, 20. fixing pin, 21. limit slot, 22. limit block, 23. top pin, 24. wellhead casing, 25. wellhead oil nozzle casing, 26. connecting to gathering and transportation pipeline, 27. mobile oil measuring vehicle. DETAILED DESCRIPTION

[0024] The following will clearly and completely describe the technical solutions in the embodiments of the utility model in conjunction with the accompanying drawings in the embodiments of the utility model. All directional indications in the utility model (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0025] Embodiment 1

[0026] See also Figure 1 , Figure 2 , Figure 3 as well as Figure 7 A four-way valve connection structure dedicated to a mobile vehicle comprises a mother pipe 1, a core shaft pipe 6 is arranged in the middle of the mother pipe 1, one end of the core shaft pipe 6 is sealed and connected to the mother pipe 1, a longitudinal pipe joint 2 is arranged on one side of the mother pipe 1, a nozzle joint 7 is arranged on one end of the core shaft pipe 6, a customized nozzle 8 is arranged in the nozzle joint 7, a first axial pipe joint 10 is arranged on the other end of the core shaft pipe 6, a pipe plug 9 is arranged on the other side of the mother pipe 1, a rubber sealing ring 3 is arranged at the connection between the core shaft pipe 6 and the mother pipe 1, so as to improve the sealing performance of the connection between the axial core pipe and the mother pipe 1, a sealing nut 5 is also sleeved on one side of the core shaft pipe 6, a sealing pressure ring 4 is also arranged in the sealing nut 5, and the sealing nut 5 is locked on the mother pipe 1, so as to further improve the sealing performance of the connection between the axial core pipe and the mother pipe 1, an O-ring 14 is also arranged on the outer surface of the nozzle joint 7, so as to improve the sealing performance of the connection with the wellhead nozzle sleeve.

[0027] First, insert one end of the mother pipe 1 into the wellhead casing 24, and connect the nozzle joint 7 to the wellhead nozzle casing 25. At this time, the customized nozzle 8 is connected to the wellhead nozzle casing 25, and then the first axial pipe joint 10 is connected to the inlet rubber tube of the mobile oil measuring vehicle 27, and the longitudinal pipe joint 2 is connected to the outlet rubber tube of the mobile oil measuring vehicle 27. The petroleum liquid in the wellhead nozzle casing 25 is transported to the first axial pipe joint 10 through the core shaft pipe 6, and the first axial pipe joint 10 transports the petroleum oil to the inlet rubber tube connection. The inlet rubber tube transports the petroleum liquid to the mobile oil measuring vehicle 27, and the mobile oil measuring vehicle 27 performs oil measuring operations. At the same time, the petroleum liquid is transported to the longitudinal pipe joint 2 through the outlet rubber tube, and the petroleum liquid is transported to the wellhead casing 24 through the mother pipe 1, and then output through the connecting pipeline 26.

[0028] Embodiment 2

[0029] See also Figure 4-Figure 6 A detachable extension component is also provided on the first axial pipe joint 10, and the extension component includes an extension core tube 12, an axial sleeve 11 is provided at one end of the extension core tube 12, and a second axial pipe joint 13 is provided at the other end of the extension core tube 12. The axial sleeve 11 can be connected with the first axial pipe joint 10 by clamping, and the length of the oil pipeline can be extended. A positioning block 15 is provided on the outer surface of the first axial pipe joint 10, and the positioning block 15 is clamped in the positioning groove 16. The positioning groove 16 is arranged on the inner wall of the axial sleeve 11, and the connection between the axial sleeve and the first axial pipe joint 10 can be positioned. A groove 19 is also provided on the outer surface of the first axial pipe joint 10, and a fixing pin 20 is arranged in the groove 19. A return spring 18 is arranged in the groove 19, and one end of the return spring 18 is connected with the fixing pin 20, and the fixing pin 20 is clamped in the fixing interface 17. The fixing interface 17 is arranged on the axial sleeve, and the fixing pin 20 is positioned, and the axial sleeve is connected to the first axial pipe joint 10.

[0030] When the mobile oil measuring vehicle 27 is far away from the wellhead casing 24, the positioning block 15 on the first axial pipe joint 10 is inserted into the positioning groove 16, the first axial pipe joint 10 is connected to the axial sleeve 11, the axial sleeve 11 squeezes the fixing pin 20, the fixing pin 20 moves in the groove 19, and compresses the reset spring 18. When the fixing pin 20 moves to the position of the fixing interface 17, the reset spring 18 drives the fixing pin 20 to reset and connect the fixing pin 20 in the fixing interface 17, completing the connection between the extended core tube 12 and the core shaft tube 6, and then the second axial pipe joint 13 is connected to the It is connected to the inlet rubber tube of the mobile oil measuring vehicle 27, and the longitudinal pipe joint 2 is connected to the outlet rubber tube of the mobile oil measuring vehicle 27. The petroleum liquid in the wellhead nozzle casing 25 is transported to the first axial pipe joint 10 through the core shaft tube 6. The first axial pipe joint 10 transports the petroleum oil to the inlet rubber tube connection. The inlet rubber tube transports the petroleum liquid to the mobile oil measuring vehicle 27. The mobile oil measuring vehicle 27 performs oil measuring operations. At the same time, the petroleum liquid is transported to the longitudinal pipe joint 2 through the outlet rubber tube. The petroleum liquid is transported to the wellhead casing 24 through the mother pipe 1, and then output through the connecting gathering pipeline 26.

[0031] Furthermore, when it is necessary to disassemble the extended core tube 12 and the core shaft tube 6, a push pin 23 is movably arranged in the fixed interface 17. The push pin 23 is pressed and the push pin 23 moves in the fixed interface 17. The movement of the push pin 23 drives the fixed pin 20 to move and separates the fixed pin 20 from the fixed interface 17, so as to facilitate the disassembly of the axial sleeve 11 and the first axial pipe joint 10. Limit blocks 22 are arranged on both sides of the push pin 23. The limit blocks 22 are slidably arranged in the limit grooves 21. The limit grooves 21 are arranged on both sides of the inner wall of the fixed interface 17. The movement of the push pin 23 drives the limit blocks 22 to move in the limit grooves 21, so as to limit the moving position of the push pin 23.

[0032] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A four-way valve connection structure for a mobile vehicle, characterized in that: The invention comprises a mother tube (1), a mandrel tube (6) is arranged in the middle of the mother tube (1), one end of the mandrel tube (6) is sealedly connected to the mother tube (1), a longitudinal pipe joint (2) is arranged on one side of the mother tube (1), a nozzle joint (7) is arranged on one end of the mandrel tube (6), a customized nozzle (8) is arranged in the nozzle joint (7), a first axial pipe joint (10) is arranged on the other end of the mandrel tube (6), a pipe plug (9) is arranged on the other side of the mother tube (1), and a detachable extension component is also arranged on the first axial pipe joint (10).

2. A four-way valve connection structure for a mobile vehicle according to claim 1, characterized in that: A rubber sealing ring (3) is provided at the connection between the core shaft tube (6) and the mother tube (1).

3. A four-way valve connection structure for a mobile vehicle according to claim 2, characterized in that: A sealing nut (5) is also sleeved on one side of the core shaft tube (6), a sealing pressure ring (4) is also arranged inside the sealing nut (5), and the sealing nut (5) is locked on the mother tube (1).

4. A four-way valve connection structure for a mobile vehicle according to claim 1, characterized in that: An O-type sealing ring (14) is also provided on the outer surface of the oil nozzle joint (7).

5. The four-way valve connection structure for a mobile vehicle according to claim 1, characterized in that: The extension assembly comprises an extension core tube (12), one end of the extension core tube (12) is provided with an axial sleeve (11), the other end of the extension core tube (12) is provided with a second axial pipe joint (13), and the axial sleeve (11) can be connected to the first axial pipe joint (10) by snap-fitting.

6. A four-way valve connection structure for a mobile vehicle according to claim 5, characterized in that: A positioning block (15) is provided on the outer surface of the first axial pipe joint (10), and the positioning block (15) is engaged in a positioning groove (16), and the positioning groove (16) is provided on the inner wall of the axial sleeve (11).

7. A four-way valve connection structure for a mobile vehicle according to claim 6, characterized in that: A groove (19) is also provided on the outer surface of the first axial pipe joint (10), a fixing pin (20) is provided in the groove (19), a return spring (18) is provided in the groove (19), one end of the return spring (18) is connected to the fixing pin (20), the fixing pin (20) is clamped in a fixing interface (17), and the fixing interface (17) is provided on the axial sleeve.

8. A four-way valve connection structure for a mobile vehicle according to claim 7, characterized in that: A push pin (23) is movably arranged in the fixed interface (17), and limit blocks (22) are arranged on both sides of the push pin (23). The limit blocks (22) are slidably arranged in the limit grooves (21), and the limit grooves (21) are arranged on both sides of the inner wall of the fixed interface (17).

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