Mud gate valve capable of being rotationally adjusted in multiple modes

Abstract

The utility model relates to the technical field of gate valves, in particular to a multi-mode rotary adjusting mud gate valve which mainly comprises a valve seat and a gate valve mechanism, the gate valve mechanism is located in the valve seat and used for opening and closing in the valve seat, the gate valve mechanism comprises a gate plate and a driving mechanism, the gate plate is rotatably connected in the valve seat, and the driving mechanism is located above the valve seat. The driving mechanism comprises a supporting frame, the supporting frame is fixedly installed on the surface of the valve seat, in the initial state, the transmission rod and the rotating rod are connected into a whole, and when a stable power source exists in the field, the motor is started, the transmission rod drives the rotating rod to rotate, and therefore the flashboard rotates in the valve seat, and opening and closing of the interior of the valve seat are achieved. When manual operation is needed, the two limiting rods are pulled outwards, the limiting rods are moved out of the limiting holes in the surface of the positioning rod, limiting on the rotating rod is cancelled, at the moment, the rotating handle is manually rotated, the rotating handle drives the rotating rod to rotate, and rotation of the gate plate is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of gate valves, in particular to a slurry gate valve with multi-mode rotation adjustment. Background Art

[0002] Mud gate valves are divided into two types: steel core mud gate valves and rubber core mud gate valves. They are mainly used to cut off the medium in drilling mud manifolds in oil and natural gas extraction. They can also be used in high-pressure manifolds in petrochemical and other industries.

[0003] In the current oil and gas extraction industry, the operation of mud gate valves is mostly limited to a single manual or electric mode. For electric mud gate valves, fast, repeatable and accurate operation can be achieved through remote control or automation systems. However, the fatal weakness of electric valves is their complete dependence on power supply. At many drilling sites, especially in remote or offshore platforms, stable power supply is often difficult to guarantee. Once the power cord is insufficient or a power outage occurs, the electric mud gate valve will completely lose its function. In an emergency, it may be impossible to close the valve in time, increasing safety risks and potential environmental hazards. Although manual mud gate valves are not restricted by power supply, they do require on-site operators to manually open or close the valve. In harsh environmental conditions, such as high temperature, high pressure, strong vibration or areas with potential explosion hazards, manual operation not only poses a threat to the safety of operators, but also has low accuracy and repeatability. It depends on the operator's skills and experience, which increases the possibility of operating errors, thereby affecting drilling efficiency and safety. Therefore, the industry urgently needs a mud gate valve that integrates manual and electric functions. Utility Model Content

[0004] The purpose of the utility model is to provide a slurry gate valve with multi-mode rotation adjustment to solve the problems raised by the above background technology.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] A multi-mode rotary adjustment mud gate valve, comprising:

[0007] valve seat;

[0008] A gate valve mechanism is located inside the valve seat and is used for opening and closing the valve seat. The gate valve mechanism includes a gate plate, which is rotatably connected to the inside of the valve seat.

[0009] The driving mechanism is located above the valve seat and is used to drive the gate to rotate. The driving mechanism includes a support frame, which is fixedly installed on the surface of the valve seat.

[0010] Preferably, a motor is fixedly mounted on the surface of the support frame, and the output end of the motor is connected to a transmission rod. The gate valve mechanism also includes a connecting block, which is fixedly mounted on the surface of the valve seat. A rotating rod is rotatably connected inside the connecting block, and one end of the rotating rod is detachably mounted to one end of the transmission rod.

[0011] Preferably, a positioning rod is fixedly installed at one end of the rotating rod, the gate plate is fixedly installed at the other end of the rotating rod, a positioning groove is provided at the bottom of one end of the transmission rod, the positioning rod is movably inserted into the positioning groove, and symmetrical limiting holes are provided on the surface of the positioning rod. A symmetrical limiting rod is slidably connected to the inside of the transmission rod, and the limiting rod is slidably connected to the inside of the limiting hole.

[0012] Preferably, a symmetrical limit groove is provided inside the transmission rod, a limit ring is fixedly installed on the surface of the limit rod, the limit rod and the limit ring are both slidably connected inside the limit groove, a spring is fixedly installed on the surface of the limit ring, the other end of the spring is fixedly connected to one side inside the limit groove, one end of the limit rod passes through the inside of the spring and extends to the outside of the transmission rod, a symmetrical extension plate is fixedly installed on the surface of the transmission rod, a clamping block is slidably connected inside the extension plate, a clamping groove is provided on the other end surface of the limit rod, and the clamping block is movably inserted inside the clamping groove.

[0013] Preferably, a rotating handle is fixedly installed on the surface of the rotating rod, and the rotating handle is L-shaped. One end of the rotating handle and the surface of the connecting block are both provided with sockets. One end of the rotating handle is provided with one socket, and the surface of the connecting block is provided with four sockets distributed in a ring shape. A pin is movably inserted inside the socket.

[0014] Preferably, sealing gaskets are fixedly installed on both sides of the gate plate.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] The utility model is provided with a driving mechanism. In the initial state, the transmission rod and the rotating rod are connected as a whole. When there is a stable power supply on site, the motor is started, and the transmission rod drives the rotating rod to rotate, thereby causing the gate to rotate inside the valve seat, realizing the opening and closing of the valve seat, so that the valve can be closed in time in an emergency, thereby improving safety and avoiding the threat to the safety of operators caused by manual operation under harsh environmental conditions, such as high temperature, high pressure, strong vibration or areas with potential explosion hazards. When there is no stable power supply on site and manual operation is required, the two limit rods are pulled outward, and the limit rods are moved out from the limit holes on the surface of the positioning rod, thereby canceling the limit on the rotating rod. The card block is inserted into the card slot, so that the limit rod can remain in the state of being moved out from the limit hole. At this time, the rotating handle is manually turned, and the rotating handle drives the rotating rod to rotate, thereby realizing the rotation of the gate. After the rotating handle is rotated 90 degrees, the gate is closed. The rotating rod is limited by the cooperation of the pin and the socket to prevent the rotating rod from rotating under the impact of mud, thereby avoiding complete dependence on power supply. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0018] Figure 2 It is a schematic diagram of the cross-sectional structure of the utility model;

[0019] Figure 3 This is a schematic diagram of the connecting block structure of the utility model;

[0020] Figure 4 This is an enlarged schematic diagram of the structure at point A of the present utility model.

[0021] In the picture:

[0022] 1. Valve seat;

[0023] 2. Driving mechanism; 21. Support frame; 22. Motor; 23. Transmission rod; 231. Extension plate; 232. Clamping block; 24. Positioning slot; 25. Limiting rod; 251. Clamping slot; 26. Limiting slot; 27. Limiting ring; 28. Spring;

[0024] 3. Gate valve mechanism; 31. Connecting block; 32. Rotating rod; 33. Gate plate; 34. Positioning rod; 35. Limiting hole; 36. Rotating handle; 37. Latch; 38. Socket; 39. Sealing gasket. DETAILED DESCRIPTION

[0025] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0026] In order to enable those skilled in the art to better understand the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of this application.

[0027] like Figure 1-4 As shown, the present application provides a slurry gate valve with multi-mode rotation adjustment, comprising:

[0028] Valve seat 1;

[0029] The gate valve mechanism 3 is located inside the valve seat 1 and is used for opening and closing the valve seat 1. The gate valve mechanism 3 includes a gate plate 33, which is rotatably connected to the inside of the valve seat 1.

[0030] The driving mechanism 2 is located above the valve seat 1 and is used to drive the gate plate 33 to rotate. The driving mechanism 2 includes a support frame 21, which is fixedly mounted on the surface of the valve seat 1;

[0031] In this embodiment, when the transmission rod 23 and the rotating rod 32 are connected as a whole, the gate valve mechanism 3 can be opened and closed by the driving mechanism 2; when the transmission rod 23 and the rotating rod 32 are separated, the gate valve mechanism 3 can be opened and closed manually.

[0032] Specifically, such as Figure 2 As shown, a motor 22 is fixedly mounted on the surface of the support frame 21, and the output end of the motor 22 is transmission-connected to a transmission rod 23. The gate valve mechanism 3 also includes a connecting block 31, which is fixedly mounted on the surface of the valve seat 1. A rotating rod 32 is rotationally connected inside the connecting block 31, and one end of the rotating rod 32 is detachably mounted to one end of the transmission rod 23.

[0033] In this embodiment, when the motor 22 is working, the transmission rod 23 rotates, and the transmission rod 23 drives the rotating rod 32 to rotate, so that the gate 33 rotates inside the valve seat 1 to achieve opening and closing of the valve seat 1.

[0034] Specifically, such as Figure 3 As shown, a positioning rod 34 is fixedly installed at one end of the rotating rod 32, and the gate 33 is fixedly installed at the other end of the rotating rod 32. A positioning groove 24 is opened at the bottom of one end of the transmission rod 23, and the positioning rod 34 is movably inserted into the positioning groove 24. Symmetrical limiting holes 35 are opened on the surface of the positioning rod 34. Symmetrical limiting rods 25 are slidably connected to the inside of the transmission rod 23, and the limiting rods 25 are slidably connected to the inside of the limiting holes 35.

[0035] In this embodiment, by cooperating with the limiting hole 35 and the limiting rod 25 , when the positioning rod 34 at the end of the rotating rod 32 is inserted into the positioning groove 24 , the limiting rod 25 is inserted into the limiting hole 35 , so that the transmission rod 23 and the rotating rod 32 form a whole.

[0036] Specifically, such as Figure 4 As shown, a symmetrical limiting groove 26 is provided inside the transmission rod 23, a limiting ring 27 is fixedly installed on the surface of the limiting rod 25, and the limiting rod 25 and the limiting ring 27 are both slidably connected inside the limiting groove 26, a spring 28 is fixedly installed on the surface of the limiting ring 27, and the other end of the spring 28 is fixedly connected to one side inside the limiting groove 26, one end of the limiting rod 25 passes through the inside of the spring 28 and extends to the outside of the transmission rod 23, a symmetrical extension plate 231 is fixedly installed on the surface of the transmission rod 23, and a clamping block (232) is slidably connected inside the extension plate 231, and a clamping groove 251 is provided on the surface of the other end of the limiting rod 25, and the clamping block 232 is movably inserted inside the clamping groove 251;

[0037] In this embodiment: with the cooperation of the spring 28 and the limiting ring 27, the limiting rod 25 can be stably inserted into the limiting hole 35, the limiting groove 26 provides space for the rearward movement of the limiting rod 25 and the limiting ring 27, and the clamping block 232 is inserted into the clamping groove 251, so that the limiting rod 25 can remain in the state of being moved out from the limiting hole 35.

[0038] Specifically, such as Figure 2 As shown, a rotating handle 36 is fixedly installed on the surface of the rotating rod 32, and the rotating handle 36 is L-shaped. One end of the rotating handle 36 and the surface of the connecting block 31 are both provided with a socket 38. One end of the rotating handle 36 is provided with one socket 38, and the surface of the connecting block 31 is provided with four sockets 38 and distributed in a ring shape. A pin 37 is movably inserted inside the socket 38.

[0039] In this embodiment, the rotating handle 36 is manually rotated, and the rotating handle 36 drives the rotating rod 32 to rotate, thereby realizing the rotation of the gate 33. After the rotating handle 36 is rotated 90 degrees, the gate 33 is closed, and the rotating rod 32 is limited by the cooperation of the pin 37 and the socket 38 to prevent the rotating rod 32 from rotating under the impact of mud.

[0040] Specifically, such as Figure 2 As shown, sealing gaskets 39 are fixedly installed on both sides of the gate 33;

[0041] In this embodiment, the sealing gasket 39 further plays a sealing role.

[0042] The specific solution is as follows: in the initial state, the transmission rod 23 and the rotating rod 32 are connected as a whole. When there is a stable power supply on site, the motor 22 is started, and the transmission rod 23 drives the rotating rod 32 to rotate, so that the gate 33 rotates inside the valve seat 1 to realize the opening and closing of the valve seat 1. When manual operation is required, the two limit rods 25 are pulled outward, and the limit rod 25 moves out from the inside of the limit hole 35 on the surface of the positioning rod 34, canceling the limit on the rotating rod 32. At this time, the rotating handle 36 is manually rotated, and the rotating handle 36 drives the rotating rod 32 to rotate, thereby realizing the rotation of the gate 33. After the rotating handle 36 is rotated 90 degrees, the gate 33 is closed, and the rotating rod 32 is limited by the cooperation of the pin 37 and the socket 38 to prevent the rotating rod 32 from rotating under the impact of mud.

[0043] Those skilled in the art should understand that the discussion of any of the above embodiments is merely illustrative; within the spirit of the present invention, the technical features of the above embodiments or different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in detail for the sake of simplicity.

[0044] The present invention is intended to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the scope of protection of the present invention.

Claims

1. A multi-mode rotary adjustment mud gate valve, characterized in that: include: Valve seat (1); A gate valve mechanism (3) is located inside the valve seat (1) and is used for opening and closing the valve seat (1). The gate valve mechanism (3) includes a gate plate (33) which is rotatably connected to the inside of the valve seat (1). A driving mechanism (2) is located above the valve seat (1) and is used to drive the gate plate (33) to rotate. The driving mechanism (2) includes a support frame (21) fixedly mounted on the surface of the valve seat (1).

2. A multi-mode rotary adjustment mud gate valve according to claim 1, characterized in that: A motor (22) is fixedly mounted on the surface of the support frame (21), and the output end of the motor (22) is connected to a transmission rod (23). The gate valve mechanism (3) also includes a connecting block (31), which is fixedly mounted on the surface of the valve seat (1). A rotating rod (32) is rotatably connected inside the connecting block (31), and one end of the rotating rod (32) is detachably mounted to one end of the transmission rod (23).

3. A multi-mode rotary adjustment mud gate valve according to claim 2, characterized in that: A positioning rod (34) is fixedly installed on one end of the rotating rod (32), and the gate (33) is fixedly installed on the other end of the rotating rod (32). A positioning groove (24) is provided at the bottom of one end of the transmission rod (23), and the positioning rod (34) is movably inserted into the positioning groove (24). A symmetrical limiting hole (35) is provided on the surface of the positioning rod (34). A symmetrical limiting rod (25) is slidably connected to the inside of the transmission rod (23), and the limiting rod (25) is slidably connected to the inside of the limiting hole (35).

4. A multi-mode rotary adjustment mud gate valve according to claim 3, characterized in that: A symmetrical limiting groove (26) is provided inside the transmission rod (23); a limiting ring (27) is fixedly installed on the surface of the limiting rod (25); the limiting rod (25) and the limiting ring (27) are both slidably connected inside the limiting groove (26); a spring (28) is fixedly installed on the surface of the limiting ring (27); the other end of the spring (28) is fixedly connected to one side inside the limiting groove (26); one end of the limiting rod (25) passes through the inside of the spring (28) and extends to the outside of the transmission rod (23); a symmetrical extension plate (231) is fixedly installed on the surface of the transmission rod (23); a clamping block (232) is slidably connected inside the extension plate (231); a clamping groove (251) is provided on the surface of the other end of the limiting rod (25); the clamping block (232) is movably inserted into the inside of the clamping groove (251).

5. The multi-mode rotary adjustment mud gate valve according to claim 2, characterized in that: A rotating handle (36) is fixedly mounted on the surface of the rotating rod (32), and the rotating handle (36) is L-shaped. One end of the rotating handle (36) and the surface of the connecting block (31) are both provided with a socket (38). One socket (38) is provided at one end of the rotating handle (36), and four sockets (38) are provided on the surface of the connecting block (31) and are distributed in a ring shape. A latch (37) is movably inserted into the socket (38).

6. The multi-mode rotary adjustment mud gate valve according to claim 1, characterized in that: Sealing pads (39) are fixedly mounted on both sides of the gate plate (33).

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