Throttle valve structure capable of rapidly switching oil nozzle

Abstract

The utility model relates to the technical field of throttle valves, and discloses an oil nozzle quick switching throttle valve structure which comprises a valve body and an oil inlet chamber, a valve element is arranged in the valve body, conical heads are fixedly arranged at the two ends of the valve element, valve seats are fixedly arranged on the inner wall of the valve body, the number of the valve seats is two, sealing gaskets are arranged on the surfaces of the valve seats, and the oil inlet chamber is arranged in the valve body. Oil outlet assemblies are connected to the two ends of the valve body through conical pipes, an oil inlet chamber is formed in the bottom of the valve body, and a case is welded to one side of the oil inlet chamber; the utility model has the beneficial effects that the valve core and the two valve seats can be sealed by centering the valve core and the sealing gasket, the valve body can be closed, the valve core is controlled to move horizontally to leave one of the valve seats, oil can be discharged through one of the oil outlet components, and the valve core can change the opening size of one of the valve seats through the conical head; and the flow of one oil outlet assembly can be conveniently adjusted.

Description

Technical Field

[0001] The utility model relates to the technical field of throttle valves, in particular to an oil nozzle fast-converting throttle valve structure. Background Art

[0002] A throttle valve is a valve that controls the flow of a fluid by changing the throttle section or throttle length. A throttle valve and a check valve can be combined into a one-way throttle valve by connecting them in parallel. The throttle valve and the one-way throttle valve are simple flow control valves. In a quantitative pump hydraulic system, the throttle valve and the overflow valve can be combined to form three types of throttling speed control systems, namely, the oil inlet throttling speed control system, the oil return throttling speed control system and the bypass throttling speed control system.

[0003] The throttle valve is an important component of the wellhead oil tree. By selecting the appropriate specifications of the oil nozzle, stable and high production can be achieved at the production wellhead. During the long-term production process, the situation at the bottom of the well will change. In order to adapt to this change, it is necessary to replace the oil nozzles of different specifications to adapt to it. At present, when replacing the oil nozzles of different specifications, they need to be installed and disassembled, which is labor-intensive and time-consuming, and reduces production efficiency. Summary of the invention

[0004] The utility model aims to provide a throttle valve structure for quickly changing an oil nozzle, so as to solve the problem in the background technology that it takes time to replace oil nozzles of different specifications, and it is necessary to install and disassemble them, which is labor-consuming and time-consuming.

[0005] The utility model provides the following technical solutions: an oil nozzle quick-conversion throttle valve structure, comprising a valve body and an oil inlet chamber, a valve core is arranged inside the valve body, conical heads are fixedly arranged at both ends of the valve core, a valve seat is fixedly arranged on the inner wall of the valve body, two valve seats are arranged, a sealing gasket is arranged on the surface of the valve seat, both ends of the valve body are connected with an oil outlet assembly through a conical tube, an oil inlet chamber is arranged at the bottom of the valve body, a chassis is welded on one side of the oil inlet chamber, a screw rod is rotatably connected to the inside of the chassis, and the screw rod is driven by a motor to rotate inside the chassis, the screw rod is connected with a connecting rod through a translation assembly, and the top end of the connecting rod is fixedly connected to the middle part of the valve core.

[0006] As a preferred technical solution of the utility model, the oil outlet assembly includes an internally threaded tube, an externally threaded tube and an oil outlet nozzle. The oil inlet end of the internally threaded tube is welded to the valve body through a tapered tube, the oil outlet end of the internally threaded tube is threadedly connected to the oil inlet end of the externally threaded tube, and the oil outlet end of the externally threaded tube is fixedly provided with an oil outlet nozzle.

[0007] As a preferred technical solution of the utility model, a first wrench position is fixedly provided on the surface of the internally threaded pipe, and a second wrench position is fixedly provided on the surface of the externally threaded pipe.

[0008] As a preferred technical solution of the utility model, a connecting port is provided at the bottom of the valve body, the top of the oil inlet chamber is welded to the valve body through the connecting port, and an oil inlet pipe is fixedly provided on the surface of the oil inlet chamber.

[0009] As a preferred technical solution of the utility model, a cover plate is provided on the surface of the chassis, one side of the motor is fixedly connected to one side of the chassis, and the output shaft of the motor is connected to one end of the screw rod.

[0010] As a preferred technical solution of the utility model, the translation assembly includes a threaded sleeve, a vertical plate, a push-pull rod and a guide block. The threaded sleeve is threadedly connected to the screw rod, the bottom of the threaded sleeve is fixedly provided with a vertical plate, one side of the vertical plate is fixedly provided with a push-pull rod, one end of the push-pull rod is fixedly connected to the bottom of one side of the connecting rod, and the top of the threaded sleeve is fixedly provided with a guide block.

[0011] As a preferred technical solution of the utility model, a guide rail is fixedly provided on the inner wall of the top of the chassis, and the guide block is slidably connected to the guide rail.

[0012] As a preferred technical solution of the utility model, a rod groove is provided at the bottom of one side of the oil inlet chamber, a sealing ring is provided inside the rod groove, and the push-pull rod is slidably connected to the sealing ring.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] 1. The oil nozzle has a quick-conversion throttle valve structure. By centering the valve core, the sealing gasket can achieve the seal between the valve core and the two valve seats, and the valve body can be closed. By controlling the horizontal movement of the valve core to leave one of the valve seats, oil can be discharged through one of the oil outlet components. The valve core can change the opening size of one of the valve seats through the conical head, which is convenient for adjusting the flow of one of the oil outlet components. By controlling the reverse movement of the valve core, the two oil outlet components can be switched. Oil can be supplied through oil outlet components of different specifications without disassembly, saving the manpower and time required for replacing the oil outlet components, and ensuring production efficiency.

[0015] 2. The oil nozzle quickly switches the throttle valve structure. The motor drives the screw rod, which can drive the translation component to move horizontally. The translation component can drive the valve core to move horizontally through the connecting rod, which can quickly control the valve core and is easy to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 It is a schematic diagram of the explosion structure of the utility model;

[0018] Figure 3This is a schematic diagram of the structure of the oil outlet assembly of the utility model;

[0019] Figure 4 This is a schematic diagram of the structure inside the valve body of the utility model;

[0020] Figure 5 It is a schematic diagram of the structure inside the chassis of the utility model.

[0021] In the figure: 1. valve body; 2. valve core; 3. conical head; 4. valve seat; 5. sealing gasket; 6. conical tube; 7. oil outlet assembly; 701. internal threaded tube; 702. external threaded tube; 703. oil outlet nozzle; 704. wrench position one; 705. wrench position two; 8. oil inlet chamber; 9. chassis; 10. cover plate; 11. motor; 12. connecting port; 13. screw rod; 14. translation assembly; 1401. threaded sleeve; 1402. vertical plate; 1403. push-pull rod; 1404. guide block; 15. connecting rod; 16. guide rail; 17. sealing ring; 18. oil inlet pipe. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Embodiment 1:

[0023] See also Figure 1-5 The utility model provides an oil nozzle quick-conversion throttle valve structure, including a valve body 1 and an oil inlet chamber 8. A valve core 2 is arranged inside the valve body 1. Conical heads 3 are fixedly arranged at both ends of the valve core 2. A valve seat 4 is fixedly arranged on the inner wall of the valve body 1. Two valve seats 4 are arranged. By controlling the horizontal movement of the valve core 2, the valve core 2 can change the opening size through the conical head 3, and the flow rate can be adjusted. A sealing gasket 5 is arranged on the surface of the valve seat 4. Both ends of the valve body 1 are connected to an oil outlet assembly 7 through a conical pipe 6. The bottom of the valve body 1 An oil inlet chamber 8 is provided, and a chassis 9 is welded to one side of the oil inlet chamber 8. A screw rod 13 is rotatably connected inside the chassis 9, and the screw rod 13 is driven by a motor 11 to rotate inside the chassis 9. The screw rod 13 is connected to a connecting rod 15 through a translation assembly 14. The top of the connecting rod 15 is fixedly connected to the middle of the valve core 2. The screw rod 13 is driven by the motor 11, and the screw rod 13 can drive the translation assembly 14 to move horizontally. The translation assembly 14 can drive the valve core 2 to move horizontally through the connecting rod 15, and the operation is simple;

[0024] A communication port 12 is provided at the bottom of the valve body 1, and the top of the oil inlet chamber 8 is welded to the valve body 1 through the communication port 12. An oil inlet pipe 18 is fixedly provided on the surface of the oil inlet chamber 8, and the oil inlet chamber 8 can be connected to the valve body 1 through the communication port 12, and oil can be supplied to the oil inlet chamber 8 through the oil inlet pipe 18;

[0025] A cover plate 10 is provided on the surface of the chassis 9, one side of the motor 11 is fixedly connected to one side of the chassis 9, the output shaft of the motor 11 is connected to one end of the screw rod 13, and the motor 11 can be supported by the chassis 9. By opening the cover plate 10, the interior of the chassis 9 can be repaired. Embodiment 2:

[0026] The oil outlet assembly 7 includes an internal threaded tube 701, an external threaded tube 702 and an oil outlet nozzle 703. The oil inlet end of the internal threaded tube 701 is welded to the valve body 1 through a tapered tube 6. The oil outlet end of the internal threaded tube 701 is threadedly connected to the oil inlet end of the external threaded tube 702. The oil outlet nozzle 703 is fixedly provided at the oil outlet end of the external threaded tube 702. The oil outlet nozzle 703 is conveniently installed and disassembled through the internal threaded tube 701 and the external threaded tube 702, and the oil body can be output through the oil outlet nozzle 703.

[0027] A wrench position 1 704 is fixedly provided on the surface of the internal threaded tube 701, and a wrench position 2 705 is fixedly provided on the surface of the external threaded tube 702. The wrench position 2 705 is used to facilitate the rotation of the oil nozzle 703, and the wrench position 1 704 can limit the internal threaded tube 701 to prevent the internal threaded tube 701 from rotating. Embodiment 3:

[0028] The translation assembly 14 includes a threaded sleeve 1401, a vertical plate 1402, a push-pull rod 1403 and a guide block 1404. The threaded sleeve 1401 is threadedly connected to the screw rod 13. The vertical plate 1402 is fixedly provided at the bottom of the threaded sleeve 1401. The push-pull rod 1403 is fixedly provided on one side of the vertical plate 1402. One end of the push-pull rod 1403 is fixedly connected to the bottom of one side of the connecting rod 15. The top of the threaded sleeve 1401 is fixedly provided with a guide block 1404. The threaded sleeve 1401 can convert the rotational motion of the screw rod 13 into the linear motion of the vertical plate 1402, and the vertical plate 1402 can drive the push-pull rod 1403 to move horizontally.

[0029] The inner wall at the top of the chassis 9 is fixed with a guide rail 16, and the guide block 1404 is slidably connected to the guide rail 16. The threaded sleeve 1401 can be guided by the guide rail 16 and the guide block 1404, so that the linear motion of the threaded sleeve 1401 can be ensured;

[0030] A rod groove is provided at the bottom of one side of the oil inlet chamber 8, through which a push-pull rod 1403 can be passed. A sealing ring 17 is provided inside the rod groove, and the push-pull rod 1403 is slidably connected to the sealing ring 17. The sealing ring 17 can seal the push-pull rod 1403 and the rod groove to prevent oil leakage.

[0031] When in use, the staff first installs the external threaded tube 702 through the wrench position 1 704 and the wrench position 2 705 of the oil outlet assembly 7 to connect it with the internal threaded tube 701, and then installs two oil outlet nozzles 703 of different specifications in sequence, and then connects the two oil outlet nozzles 703 to the oil circuit of the wellhead Christmas tree, and then supplies oil to the oil inlet chamber 8 through the oil inlet pipe 18. When the valve core 2 is centered, the sealing gasket 5 can achieve the sealing between the valve core 2 and the two valve seats 4, and the valve body 1 can be closed;

[0032] When oil needs to be supplied through one of the oil outlet assemblies 7, the staff drives the screw rod 13 through the motor 11, and the screw rod 13 can drive the vertical plate 1402 to move horizontally through the threaded sleeve 1401 of the translation assembly 14, and the vertical plate 1402 can drive the valve core 2 to move horizontally through the connecting rod 15, and the valve core 2 leaves one of the valve seats 4, and can discharge oil through the oil outlet nozzle 703 of one of the oil outlet assemblies 7. During the movement of the valve core 2, the conical head 3 can change the opening size of one of the valve seats 4, so that the flow rate of one of the oil outlet nozzles 703 can be adjusted;

[0033] When oil needs to be supplied through another oil nozzle 703 of different specifications, the staff drives the screw 13 to move in the opposite direction through the motor 11, and the connecting rod 15 drives the valve core 2 to move in the opposite direction, so as to close one of the oil nozzles 703 and open the other oil nozzle 703, thereby realizing rapid conversion of the oil nozzles 703. During this process, the sealing ring 17 can seal between the push-pull rod 1403 and the rod groove to prevent leakage of the oil.

[0034] Although 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 fast-changing throttle valve structure for an oil nozzle, comprising a valve body (1) and an oil inlet chamber (8), characterized in that: A valve core (2) is provided inside the valve body (1), and conical heads (3) are fixedly provided at both ends of the valve core (2). A valve seat (4) is fixedly provided on the inner wall of the valve body (1), and two valve seats (4) are provided. A sealing gasket (5) is provided on the surface of the valve seat (4). Both ends of the valve body (1) are connected to an oil outlet assembly (7) via a conical tube (6). An oil inlet chamber (8) is provided at the bottom of the valve body (1), and a chassis (9) is welded to one side of the oil inlet chamber (8). A screw rod (13) is rotatably connected inside the chassis (9), and the screw rod (13) is driven by a motor (11) to rotate inside the chassis (9). The screw rod (13) is connected to a connecting rod (15) via a translation assembly (14), and the top end of the connecting rod (15) is fixedly connected to the middle of the valve core (2).

2. The oil nozzle quick-change throttle valve structure according to claim 1 is characterized in that: The oil outlet assembly (7) comprises an internally threaded tube (701), an externally threaded tube (702) and an oil outlet nozzle (703); the oil inlet end of the internally threaded tube (701) is welded to the valve body (1) via a tapered tube (6); the oil outlet end of the internally threaded tube (701) is threadedly connected to the oil inlet end of the externally threaded tube (702); and the oil outlet nozzle (703) is fixedly provided at the oil outlet end of the externally threaded tube (702).

3. The oil nozzle quick-change throttle valve structure according to claim 2 is characterized in that: A first wrench position (704) is fixedly provided on the surface of the internally threaded tube (701), and a second wrench position (705) is fixedly provided on the surface of the externally threaded tube (702).

4. The oil nozzle quick-change throttle valve structure according to claim 1, characterized in that: A communication port (12) is provided at the bottom of the valve body (1), the top of the oil inlet chamber (8) is welded to the valve body (1) via the communication port (12), and an oil inlet pipe (18) is fixedly provided on the surface of the oil inlet chamber (8).

5. The oil nozzle quick-change throttle valve structure according to claim 1, characterized in that: A cover plate (10) is provided on the surface of the chassis (9), one side of the motor (11) is fixedly connected to one side of the chassis (9), and the output shaft of the motor (11) is connected to one end of a screw rod (13).

6. The oil nozzle quick-change throttle valve structure according to claim 1, characterized in that: The translation assembly (14) comprises a threaded sleeve (1401), a vertical plate (1402), a push-pull rod (1403) and a guide block (1404); the threaded sleeve (1401) is threadedly connected to the screw rod (13); the vertical plate (1402) is fixedly provided at the bottom of the threaded sleeve (1401); the push-pull rod (1403) is fixedly provided on one side of the vertical plate (1402); one end of the push-pull rod (1403) is fixedly connected to the bottom of one side of the connecting rod (15); and the guide block (1404) is fixedly provided on the top of the threaded sleeve (1401).

7. The oil nozzle quick-change throttle valve structure according to claim 6, characterized in that: A guide rail (16) is fixedly provided on the inner wall at the top of the chassis (9), and the guide block (1404) is slidably connected to the guide rail (16).

8. The oil nozzle quick-change throttle valve structure according to claim 6, characterized in that: A rod groove is provided at the bottom of one side of the oil inlet chamber (8), a sealing ring (17) is provided inside the rod groove, and the push-pull rod (1403) is slidably connected to the sealing ring (17).

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