A fixed throttle valve and its usage method

Abstract

This invention proposes a fixed throttle valve and its usage method. The fixed throttle valve includes: a throttle valve mechanism, a first clamping part, a second clamping part, and a driving part. The throttle valve mechanism has a receiving cavity for installing the nozzle body, and a plug is provided on the opening side of the receiving cavity. A first clamping claw is provided on the first clamping part facing the opening of the receiving cavity, capable of clamping the plug and installing or removing the plug. A second clamping claw is provided on the second clamping part facing the opening of the receiving cavity, capable of clamping the nozzle body and installing or removing the nozzle body. The driving part can drive the first and second clamping claws to move axially along the receiving cavity. Testing can still be performed using nozzles of the original specifications, thus facilitating installation or removal, improving installation or removal efficiency, and ensuring safety during installation or removal without the need for personnel assistance.

Description

Technical Field

[0001] This invention belongs to the technical field of fixed throttle valve nozzle replacement, and specifically relates to a fixed throttle valve and its usage method. Background Technology

[0002] In oilfield exploration and development, wellhead testing is a crucial step in obtaining oil and gas data. To determine the oil-bearing area, boundary conditions, production capacity, and drive type of the oilfield, it is necessary to control the pressure at the wellhead during production to obtain testing data under different conditions. The fixed throttle valve is a key device for controlling the pressure at the wellhead. By disassembling and replacing nozzles of different sizes, the throttle diameter can be changed to control and adjust production.

[0003] Existing fixed throttle valves can achieve rapid switching between different sized nozzles by setting specially sized nozzles. However, using specially sized nozzles makes the installation or removal process cumbersome. When installing or removing nozzles using a robotic arm, it is also necessary to change to specially sized grippers for clamping, which is relatively inefficient. Furthermore, manual assistance is still required during the installation or removal of nozzles. If the production well has high pressure or contains toxic or harmful gases, even a slight mistake could result in high-pressure injuries or poisoning, posing a significant threat to the life safety of the operators.

[0004] Therefore, existing fixed throttle valves are less efficient and less safe when installing or removing nozzles. Summary of the Invention

[0005] To address the above problems, this invention proposes a fixed throttle valve and its usage method, wherein the fixed throttle valve includes:

[0006] A throttle valve mechanism is provided, wherein a receiving cavity for installing the nozzle body is provided inside the throttle valve mechanism, and a plug for sealing the receiving cavity is provided on the open side of the receiving cavity;

[0007] A first clamping part is provided with a first clamping claw directly opposite the opening of the receiving cavity;

[0008] The first clamping part can drive the first jaws to clamp the plug and install or remove the plug;

[0009] The second clamping part has a second clamping claw directly opposite the opening of the receiving cavity;

[0010] The second clamping part can drive the second jaw to clamp the nozzle body and install or remove the nozzle body;

[0011] A driving unit is provided, wherein the first clamping part and the second clamping part are disposed on the driving unit, and the driving unit is used to drive the first clamping jaw and the second clamping jaw to move axially along the receiving cavity.

[0012] In some specific embodiments, the first clamping part includes:

[0013] A first clamping mechanism, wherein the first gripper is rotatably mounted on the first clamping mechanism;

[0014] The first booster mechanism is connected to the first clamping mechanism via a push tube. The first booster mechanism can drive the push tube and move the first clamp along the axial direction of the receiving cavity so that the first clamp can open and close.

[0015] A rotating mechanism is connected to the first clamping mechanism, and the rotating mechanism is capable of driving the first gripper to rotate axially about the receiving cavity.

[0016] In some specific embodiments, the first clamping mechanism includes:

[0017] A fixed plate, one side of which is connected to the rotating mechanism, and the push tube is movably inserted through the fixed plate;

[0018] The mounting plate is spaced apart on the other side of the fixing plate. A plurality of first grippers are evenly arranged on the side of the mounting plate away from the fixing plate. The first grippers are rotatably connected to the mounting plate.

[0019] A transmission plate is disposed between the fixed plate and the mounting plate, and is connected to a plurality of the first grippers respectively;

[0020] The push tube passes through the transmission plate and is rotatably connected to the transmission plate.

[0021] The mounting plate has a through hole at the end opposite to the push tube, for the second clamping part to pass through.

[0022] In some specific embodiments, a plurality of transmission rods are uniformly arranged on the transmission plate, and the plurality of transmission rods are arranged in a one-to-one correspondence with a plurality of first grippers;

[0023] The end of the transmission rod away from the transmission plate is movably inserted through the mounting plate and rotatably connected to the corresponding first gripper.

[0024] In some specific embodiments, the second clamping part includes:

[0025] The second clamping mechanism, wherein the second gripper is disposed at one end of the second clamping mechanism;

[0026] The second booster mechanism is connected to the second clamping mechanism via a connecting rod. The second booster mechanism can drive the connecting rod and move the second gripper along the axial direction of the receiving cavity so that the second gripper can open and close.

[0027] The pushing mechanism, the second boosting mechanism, and the second clamping mechanism are all disposed on the pushing mechanism. The pushing mechanism can drive the second boosting mechanism and the second clamping mechanism to move along the axial direction of the receiving cavity so as to push the second gripper into the receiving cavity.

[0028] In some specific embodiments, the second clamping mechanism includes:

[0029] A connecting tube is provided through the first clamping part, one end of the connecting tube is provided on the pushing mechanism, and the other end of the connecting tube is symmetrically provided with a second clamping claw, which is rotatably connected to the connecting tube.

[0030] The connecting rod passes through the connecting tube and is rotatably connected to one of the second grippers.

[0031] In some specific embodiments, the driving unit includes:

[0032] A slide rail is provided along the axial direction of the receiving cavity;

[0033] A slide block is slidably disposed on the slide rail, and the slide block is used to connect the first clamping part and the second clamping part;

[0034] A third booster mechanism is connected to the slide block and is used to drive the slide block to move along the slide rail.

[0035] In some specific embodiments, it also includes: a support;

[0036] The throttle valve mechanism can be mounted on one side of the bracket;

[0037] The first clamping part, the second clamping part, and the driving part are all disposed on the bracket so that the first gripper and the second clamping part can be directly facing the receiving cavity.

[0038] In some specific embodiments, it also includes: a master controller;

[0039] The main controller is connected to the first clamping part, the second clamping part, and the driving part respectively, and is used to control the operation of the first clamping part, the second clamping part, and the driving part.

[0040] A method for using a fixed throttle valve based on the same concept, employing a fixed throttle valve as described in any of the above specific embodiments, is characterized by including the following steps:

[0041] The first clamping part and the second clamping part passing through the first clamping part are arranged opposite to the throttle valve mechanism, so that the first clamp and the second clamp can be arranged opposite to the opening of the receiving cavity.

[0042] The first clamping part drives the first jaw to open and close, clamping the plug. Then, the first clamping part drives the first jaw to rotate the plug around the axial direction of the receiving cavity. At the same time, the driving part drives the first clamping part to move the first jaw away from the receiving cavity along the axial direction of the receiving cavity, thereby completing the disassembly of the plug.

[0043] The second clamping part first inserts the second jaw into the receiving cavity and drives the second jaw to open and close, so that the second jaw clamps the oil nozzle body. Then, the driving part drives the second clamping part to move the second jaw away from the receiving cavity along the axial direction of the receiving cavity, thereby completing the disassembly of the oil nozzle body.

[0044] Repeat the above steps in reverse order to install the nozzle body and plug in sequence, thus completing the replacement of the nozzle body.

[0045] The fixed throttle valve of the present invention, through a first clamping part positioned opposite the opening of the receiving cavity, can clamp a plug and drive the first clamping jaws to rotate the plug around the axial direction of the receiving cavity and move it along the axial direction of the receiving cavity, thereby completing the installation or removal of the plug. Through a second clamping part passing through the first clamping part and positioned opposite the opening of the receiving cavity, the nozzle body can be clamped and driven to move the nozzle body along the axial direction of the receiving cavity, thereby completing the installation or removal of the nozzle body. The drive part is connected to the first and second clamping parts, further driving the first and second clamping parts to move along the axial direction of the receiving cavity, thereby assisting in the installation or removal of the plug by the first clamping part and the installation or removal of the nozzle body by the second clamping part. Testing can still be performed using nozzles of the original specifications, thus facilitating installation or removal, improving efficiency, and ensuring safety during installation or removal without the need for personnel assistance.

[0046] The method of using the fixed throttle valve of the present invention employs the fixed throttle valve as described above, and has the same beneficial effects as the fixed throttle valve described above, which will not be repeated here.

[0047] Other features and advantages of the invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention may be realized and obtained by means of the structures pointed out in the description, claims and drawings. Attached Figure Description

[0048] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0049] Figure 1 A schematic diagram of a fixed throttle valve according to an embodiment of the present invention is shown;

[0050] Figure 2 A schematic diagram of the first clamping part in an embodiment of the present invention is shown;

[0051] Figure 3 A partially exploded view of the first clamping part in an embodiment of the present invention is shown;

[0052] Figure 4 A schematic diagram of the first clamping mechanism in an embodiment of the present invention is shown;

[0053] Figure 5 Another partially exploded view of the first clamping part in an embodiment of the present invention is shown;

[0054] Figure 6 A partially exploded view of the second clamping part in an embodiment of the present invention is shown;

[0055] Figure 7 A schematic diagram of the end of the second clamping mechanism in an embodiment of the present invention is shown;

[0056] Figure 8 A schematic diagram of the second booster mechanism and the pusher mechanism in an embodiment of the present invention is shown;

[0057] Figure 9 A schematic diagram of the drive unit in an embodiment of the present invention is shown;

[0058] Figure 10 An exploded view of the throttle valve mechanism in an embodiment of the present invention is shown.

[0059] In the figure, 100 is the first clamping part; 110 is the first pushing mechanism; 111 is the connecting plate; 1111 is the slide groove; 1112 is the slider; 112 is the first push rod; 113 is the push plate; 120 is the rotating mechanism; 121 is the rotating motor; 122 is the sleeve plate; 123 is the bevel gear; 124 is the transmission tube; 130 is the first clamping mechanism; 131 is the first gripper; 132 is the fixing plate; 133 is the transmission plate; 1331 is the transmission rod; 134 is the mounting plate; 140 is the push tube; 200 is the first clamping part; 120 is the first pushing mechanism; 121 is the first pushing mechanism; 122 is the first pushing mechanism; 123 is the first pushing mechanism; 124 is the first pushing mechanism; 125 is the first pushing mechanism; 126 is the first pushing mechanism; 127 is the first pushing mechanism; 128 is the first pushing mechanism; 129 is the first pushing mechanism; 120 ... 210. Second clamping part; 211. Second push mechanism; 222. Second push rod; 223. Second clamping mechanism; 224. Second gripper; 225. Connecting pipe; 226. Side plate; 230. Pushing mechanism; 231. Slide table; 232. Mounting bracket; 240. Connecting rod; 300. Drive part; 310. Slide rail; 320. Slide seat; 330. Third push mechanism; 400. Throttle valve mechanism; 410. Receiving cavity; 420. Oil nozzle body; 430. Plug; 500. Bracket. Detailed Implementation

[0060] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0061] Reference Figure 1This invention provides a fixed throttle valve, comprising: a throttle valve mechanism 400, a first clamping part 100, a second clamping part 200, and a driving part 300. The throttle valve mechanism 400 has an internal receiving cavity 410 for mounting a nozzle body 420, and a plug 430 for sealing the receiving cavity 410 is provided on the open side of the receiving cavity 410. The first clamping part 100 is provided with a first clamping claw 131, which is positioned directly opposite the opening of the receiving cavity 410. The first clamping part 100 can drive the first clamping claw 131 to open and close, allowing the first clamping claw 131 to clamp or release the plug 430. The first clamping part 100 can also drive the first clamping claw 131 to rotate about the axial direction of the receiving cavity 410 and move along the axial direction of the receiving cavity 410, allowing the first clamping claw 131 to install or remove the plug 430. The second clamping part 200 is provided with a second gripper 221, and the second clamping part 200 passes through the first clamping part 100, so that the second gripper 221 is also aligned with the opening of the receiving cavity 410. The second clamping part 200 can drive the second gripper 221 to perform an opening and closing movement, so that the second gripper 221 can clamp or release the nozzle body 420. The second clamping part 200 can also drive the second gripper 221 to move axially along the receiving cavity 410, so that the second gripper 221 can install or remove the nozzle body 420. The first clamping part 100 and the second clamping part 200 are provided on the driving part 300, which is used to drive the first gripper 131 and the second gripper 221 to move axially along the receiving cavity 410.

[0062] Specifically, refer to Figure 1 and Figure 10The throttle valve mechanism 400 has a receiving cavity 410 inside, and the nozzle body 420 can be installed in the receiving cavity 410. An opening is provided on one side of the receiving cavity 410 in the axial direction, and a plug 430 is installed on the opening side of the receiving cavity 410 to seal the receiving cavity 410. The first clamping part 100 is disposed outside the opening side of the receiving cavity 410, so that the first clamping claw 131 disposed on the first clamping part 100 can be disposed directly opposite the opening side of the receiving cavity 410, that is, the first clamping claw 131 is disposed directly opposite the plug 430. The first clamping part 100 can move along the axial direction of the receiving cavity 410 towards the receiving cavity 410, thereby driving the first clamping claw 131 to move along the axial direction of the receiving cavity 410 towards the receiving cavity 410 until the first clamping claw 131 covers the outside of the plug 430. Furthermore, the first clamping part 100 can drive the first clamping claw 131 to perform an opening and closing movement, thereby clamping the outside of the plug 430 by opening and closing the first clamping claw 131, thus completing the clamping of the plug 430. After clamping the plug 430, the first clamping part 100 can drive the first jaw 131 to rotate the plug 430 around the axial direction of the receiving cavity 410. At the same time, it can also drive the first jaw 131 to move the plug 430 away from the receiving cavity 410 along the axial direction of the receiving cavity 410, gradually unscrewing the plug 430 from the opening side of the receiving cavity 410, thus completing the removal of the plug 430. Correspondingly, when the plug 430 to be installed is clamped by the first jaw 131, and the first clamping part 100 drives the first jaw 131 to move the plug 430 closer to the receiving cavity 410 along the axial direction of the receiving cavity 410, while simultaneously driving the first jaw 131 to move the plug 430 in the opposite direction around the axial direction of the receiving cavity 410, the plug 430 can be gradually screwed on, sealing the receiving cavity 410, thus completing the reinstallation of the plug 430.The second clamping part 200 is also disposed outside the opening side of the receiving cavity 410, and the second clamping part 200 is disposed through the first clamping part 100, so that the second gripper 221 disposed on the second clamping part 200 can also be disposed facing the opening side of the receiving cavity 410, that is, the second gripper 221 is disposed facing the nozzle body 420. The second clamping part 200 can move along the axial direction of the receiving cavity 410 towards the receiving cavity 410, thereby driving the second gripper 221 to move along the axial direction of the receiving cavity 410 towards the receiving cavity 410 until the second gripper 221 extends into the receiving cavity 410. The receiving cavity 410 is disposed inside and covers the outside of the nozzle body 420. The second clamping part 200 can drive the second clamping jaw 221 to open and close, thereby clamping the outside of the nozzle body 420 by opening and closing the second clamping jaw 221, thus completing the clamping of the nozzle body 420. After clamping the nozzle body 420, the second clamping part 200 can drive the second clamping jaw 221 to move the nozzle body 420 along the axial direction of the receiving cavity 410 away from the receiving cavity 410, thereby gradually removing the plug 430 from the receiving cavity 410 and completing the disassembly of the plug 430. Correspondingly, the nozzle body 420 to be installed is clamped by the second gripper 221, and then the second gripping part 200 drives the second gripper 221 to move the nozzle body 420 along the axial direction of the receiving cavity 410 towards the receiving cavity 410, thereby placing the nozzle body 420 into the receiving cavity 410 and completing the reinstallation of the nozzle body 420. With the above structure, the original specification nozzle body 420 can still be used for testing, thus facilitating overall installation or disassembly, improving the efficiency of installation or disassembly, and requiring virtually no assistance from other personnel during installation or disassembly, thereby ensuring safety during installation or disassembly.

[0063] Furthermore, referring to Figure 1 The device is also equipped with a drive unit 300, wherein the first clamping part 100 and the second clamping part 200 are both disposed on the drive unit 300. The drive unit 300 can drive the first clamping part 100 and the second clamping part 200 to move along the axial direction of the receiving cavity 410. It can further drive the first clamping part 100 and the second clamping part 200 to drive the first jaw 131 and the second jaw 221 to move along the axial direction of the receiving cavity 410, so as to ensure that there is sufficient movable distance between the first jaw 131 and the second jaw 221 relative to the receiving cavity 410. This can assist the first clamping part 100 in installing or removing the plug 430 and the second clamping part 200 in installing or removing the oil nozzle body 420, so as to facilitate installation or removal and improve the efficiency of installation or removal.

[0064] In some specific embodiments of the present invention, reference is made to... Figure 1It also includes a bracket 500. The throttle valve mechanism 400 can be disposed on one side of the bracket 500. The first clamping part 100, the second clamping part 200 and the driving part 300 are all disposed on the bracket 500 so that the first gripper 131 and the second clamping part can be disposed facing the opening side of the receiving cavity 410, thereby ensuring the accuracy during installation or disassembly.

[0065] In some specific embodiments of the present invention, reference is made to... Figure 2 The first clamping part 100 includes a first clamping mechanism 130, a first pushing mechanism 110, and a rotating mechanism 120. The first pushing mechanism 110 is fixedly mounted on the inner sidewall of the bracket 500, and the first gripper 131 is rotatably mounted on the first clamping mechanism 130. The first pushing mechanism 110 is connected to the first clamping mechanism 130 via a push tube 140, wherein the first pushing mechanism 110 can drive the push tube 140 and drive the first gripper 131 to move together along the axial direction of the receiving cavity 410, thereby enabling the first gripper 131 to perform opening and closing movements. The rotating mechanism 120 is mounted on the first pushing mechanism 110 and is connected to the first clamping mechanism 130, and can drive the first gripper 131 to rotate around the axial direction of the receiving cavity 410. Through the cooperation between the first clamping mechanism 130, the first boosting mechanism 110 and the rotating mechanism 120, the plug 430 can be installed or removed, thereby improving the efficiency of installation or removal, and eliminating the need for personnel assistance, thus ensuring safety during installation or removal.

[0066] Furthermore, refer to Figure 2 , Figure 3 and Figure 5 The first booster mechanism 110 includes a connecting plate 111, a first push rod 112, and a push plate 113. The connecting plate 111 is disposed on the inner wall of the bracket 500, and a groove 1111 is formed on one side of the connecting plate 111 along the axial direction of the receiving cavity 410. The first push rod 112 is disposed on one side of the connecting plate 111, and both ends of the first push rod 112 extend along the axial direction of the receiving cavity 410. The push plate 113 is disposed at one end of the first push rod 112, and one side of the push plate 113 is slidably connected to the groove 1111 of the connecting plate 111 via a slider 1112, so that the first push rod 112 can drive the push plate 113 to move along the axial direction of the receiving cavity 410. One end of a push tube 140 is fixedly connected to the side of the push plate 113 opposite to the first push rod 112, and the other end of the push tube 140 extends along the axial direction of the receiving cavity 410 and is connected to the first clamping mechanism 130. It can drive the first gripper 131 to move and thus open and close.

[0067] It should be noted that the first push rod 112 cannot be directly connected to the push tube 140. The second clamping part 200 is mainly inserted through the push tube 140 into the first clamping part 100. If the first push rod 112 is directly connected to the push tube 140, it would be difficult to insert it. Furthermore, the push plate 113 can also provide support between the first push rod 112 and the push tube 140 to prevent the first push rod 112 and the push tube 140 from being too long and difficult to be arranged along the axial direction of the receiving cavity 410.

[0068] Furthermore, referring to Figure 2 , Figure 3 and Figure 5 The rotating mechanism 120 includes: a sleeve plate 122, a rotating motor 121, bevel gears 123, and a transmission tube 124. The transmission tube 124 is rotatably sleeved on the outside of the push tube 140. The sleeve plate 122 is disposed on one side of the connecting plate 111, allowing the transmission tube 124 and the push tube 140 to pass through the sleeve plate 122, and the transmission tube 124 and the sleeve plate 122 are rotatably connected. The rotating motor 121 is disposed on the connecting plate 111, and the output end of the rotating motor 121 passes through the connecting plate 111. There are two bevel gears 123, one of which is rotatably disposed on the connecting plate 111 and connected to the output end of the rotating motor 121, and the other bevel gear 123 is rotatably disposed on the sleeve plate 122 and fixedly sleeved on the outside of the transmission tube 124. The end of the transmission tube 124 away from the bevel gear 123 is fixedly connected to the first clamping mechanism 130. The two bevel gears 123 mesh with each other, so that the motor 121 can drive the two bevel gears 123 to rotate in sequence, and then drive the first clamping mechanism 130 and the first gripper 131 on the first clamping mechanism 130 to rotate through the transmission tube 124.

[0069] In some specific embodiments of the present invention, reference is made to... Figure 4 The first clamping mechanism 130 includes a fixed plate 132, a mounting plate 134, and a transmission plate 133. One side of the fixed plate 132 is connected to the rotating mechanism 120, and a push tube 140 movably passes through the fixed plate 132. The mounting plate 134 is spaced apart on the other side of the fixed plate 132, and a plurality of first grippers 131 are evenly arranged on the side of the mounting plate 134 facing away from the fixed plate 132. The first grippers 131 are rotatably connected to the mounting plate 134. The transmission plate 133 is disposed between the fixed plate 132 and the mounting plate 134, and is connected to the plurality of first grippers 131 respectively. The push tube 140 passes through the transmission plate 133 and is rotatably connected to the transmission plate 133. A through hole is provided on the end of the mounting plate 134 opposite to the push tube 140 for the second clamping part 200 to pass through.

[0070] Specifically, a fixing plate 132 is disposed on the side of the sleeve plate 122 opposite to the bevel gear 123, and one side of the fixing plate 132 is fixedly connected to the end of the transmission tube 124 away from the bevel gear 123. A push tube 140 is movably inserted through the fixing plate 132, and is rotatably connected to the fixing plate 132. A mounting plate 134 is disposed on the other side of the fixing plate 132 and is fixedly connected to it. There is a certain gap between the mounting plate 134 and the fixing plate 132. Multiple first grippers 131 are evenly arranged on the side of the mounting plate 134 opposite to the fixing plate 132, and each first gripper 131 is rotatably connected to the mounting plate 134. A transmission plate 133 is disposed between the fixing plate 132 and the mounting plate 134. The transmission plate 133 is connected to the multiple first grippers 131, and the push tube 140 is inserted through the transmission plate 133, with one end of the push tube 140 rotatably connected to the transmission plate 133. The mounting plate 134 has a through hole in the middle, opposite the end of the push tube 140, through which the second clamping part 200 can pass. The push tube 140 is moved by the first push rod 112, which can pull or push the transmission plate 133 to move axially along the receiving cavity 410. Then, under the connection between the transmission plate 133 and the first gripper 131, the first gripper 131 can also be pulled or pushed to move axially along the receiving cavity 410. Since the first gripper 131 is rotatably connected to the mounting plate 134, the first gripper 131 can rotate on the mounting plate 134 due to the pulling or pushing of the transmission plate 133, thereby realizing the opening and closing of the first gripper 131. Under the action of the rotating motor 121, the transmission tube 124 is driven by the bevel gear 123 to rotate the fixed plate 132. Since the mounting plate 134 is fixedly connected to the fixed plate 132, the mounting plate 134 and the first gripper 131 set on the mounting plate 134 can rotate together. The opening, closing, movement and rotation of the first gripper 131 can be realized with a simple structure.

[0071] Furthermore, referring to Figure 4 Multiple first grippers 131 are evenly arranged around the through hole. One end of each first gripper 131 is rotatably connected to the mounting plate 134, allowing all first grippers 131 to rotate radially around the mounting plate 134. Each first gripper 131 is also connected to a transmission plate 133, which can pull or push the first grippers 131 to move together, enabling them to rotate on the mounting plate 134 and thus opening and closing. The multiple first grippers 131 cooperate with each other to clamp the plug 430.

[0072] In some specific embodiments of the present invention, reference is made to... Figure 4A plurality of transmission rods 1331 are evenly arranged on the transmission plate 133, and each transmission rod 1331 is correspondingly arranged with a plurality of first grippers 131. Both ends of the transmission rod 1331 extend along the axial direction of the receiving cavity 410. One end of the transmission rod 1331 is fixedly connected to one side of the transmission plate 133, and the other end passes through the mounting plate 134 and is rotatably connected to the middle of the corresponding first gripper 131, thereby facilitating the pulling or pushing of the first gripper 131 to realize the opening and closing of the first gripper 131.

[0073] In some specific embodiments of the present invention, reference is made to... Figure 6 The second clamping part 200 includes a second clamping mechanism 220, a second boosting mechanism 210, and a pushing mechanism 230. A second gripper 221 is rotatably mounted on one end of the second clamping mechanism 220. The second boosting mechanism 210 is connected to the second clamping mechanism 220 via a connecting rod 240. The second boosting mechanism 210 can drive the connecting rod 240 and move the second gripper 221 along the axial direction of the receiving cavity 410, allowing the second gripper 221 to open and close by pulling or pushing it. Both the second boosting mechanism 210 and the second clamping mechanism 220 are mounted on the pushing mechanism 230. The pushing mechanism 230 can drive the second boosting mechanism 210 and the second clamping mechanism 220 to move along the axial direction of the receiving cavity 410, thereby facilitating the pushing of the second gripper 221 into the receiving cavity 410.

[0074] Specifically, the second clamping mechanism 220 and the second gripper 221 are inserted into the push tube 140. The connecting rod 240 is inserted into the second clamping mechanism 220 and connected to the second gripper 221. Under the action of the second push mechanism 210, the connecting rod 240 can drive the second gripper 221 to move together along the axial direction of the receiving cavity 410. That is, the movement of the connecting rod 240 can pull or push the second gripper 221, thereby realizing the opening and closing of the second gripper 221. When it is necessary to disassemble the nozzle body 420, the second clamping mechanism 220 and the second clamping claw 221 on the second clamping mechanism 220 are first pushed into the receiving cavity 410 by the pushing mechanism 230, so that the second clamping claw 221 can cover the outside of the nozzle body 420. Then, the second push mechanism 210 pulls the second clamping claw 221 to move away from the receiving cavity 410, so that the rotatable second clamping claw 221 can close, thereby clamping the outside of the nozzle body 420 and achieving clamping of the nozzle body 420. Finally, the pushing mechanism 230 pulls the second clamping mechanism 220 and the second clamping claw 221 on the second clamping mechanism 220 and the nozzle body 420 clamped by the second clamping claw 221 out of the receiving cavity 410 together, thus completing the disassembly of the nozzle body 420.

[0075] Furthermore, referring to Figure 8The pushing mechanism 230 includes a slide 231 and a mounting bracket 232. The slide 231 is mounted on the bracket 500, and both ends of the slide 231 extend axially along the receiving cavity 410. The mounting bracket 232 is mounted on the top of the slide 231 and can move axially along the receiving cavity 410 under the action of the slide 231. A second boosting mechanism 210 is fixedly mounted on one end of the mounting bracket 232, and a second clamping mechanism 220 is fixedly mounted on the other end of the mounting bracket 232. The movement of the mounting bracket 232 can drive the second clamping mechanism 220 and the second gripper 221 on the second clamping mechanism 220 to move together. Furthermore, the mounting bracket 232 restricts the relative position between the second boosting mechanism 210 and the second clamping mechanism 220 to prevent the movement of the second clamping mechanism 220 from affecting the clamping effect of the second gripper 221 on the nozzle body 420 when the second boosting mechanism 210 drives the second gripper 221 to open and close.

[0076] In some specific embodiments of the present invention, reference is made to... Figure 6 and Figure 8 The second pushing mechanism 210 includes a second push rod 211. One end of the second push rod 211 is fixedly mounted on the mounting bracket 232, and the other end is fixedly connected to the connecting rod 240. The second push rod 211 can drive the connecting rod 240 to move axially along the receiving cavity 410. The second clamping mechanism 220 includes a connecting tube 222. The connecting tube 222 passes through the push tube 140, and one end of the connecting tube 222 is fixedly mounted on the pushing mechanism 230. The other end of the connecting tube 222 has two symmetrically arranged second grippers 221, which are arranged crosswise and rotatably connected to the connecting tube 222. The connecting rod 240 passes through the connecting tube 222 and is rotatably connected to one of the second grippers 221.

[0077] Furthermore, referring to Figure 6 A slide bar is provided between the outer wall of the connecting tube 222 and the inner wall of the push tube 140. The two ends of the slide bar are arranged along the axial direction of the receiving cavity 410. The connecting tube 222 and the push tube 140 slide bar are slidably connected. The slide bar can further restrict the movement direction of the connecting tube 222 in the push tube 140 and prevent the connecting tube 222 from being eccentric when it moves.

[0078] Furthermore, referring to Figure 7 A transmission seat is provided at one end of the connecting rod 240 near the second gripper 221. A rotating block is rotatably mounted on the transmission seat, and the rotating block is also rotatably connected to one end of one of the second grippers 221 to drive the second gripper 221 to open and close. Side plates 2221 are symmetrically arranged at one end of the connecting tube 222 near the second gripper 221. A rotating shaft is provided between the two side plates 2221, and the two grippers are rotatably connected to the rotating shaft to facilitate the opening and closing of the second gripper 221.

[0079] Furthermore, referring to Figure 7 The clamping end of the second gripper 221 is provided with a clamping groove, the size of which is adapted to the oil nozzle body 420 to improve the clamping effect.

[0080] In some specific embodiments of the present invention, reference is made to... Figure 1 and Figure 9 The drive unit 300 includes a slide rail 310, a slide block 320, and a third push mechanism 330. The slide rail 310 is arranged along the axial direction of the receiving cavity 410. The slide block 320 is slidably disposed on the slide rail 310, and the top of the slide block 320 can hold the bracket 500, thereby enabling the first clamping part 100 and the second clamping part 200 to be disposed on the slide block 320. The third push mechanism 330 is connected to the slide block 320, and can drive the slide block 320 to move along the slide rail 310. The third push mechanism 330 is a third push rod, one end of which is fixed to one end of the slide rail 310, and the other end is fixedly connected to the slide block 320.

[0081] It should be noted that the first push rod 112, the second push rod 211 and the third push rod are all electric push rods, which can extend or retract a certain preset distance to achieve a boosting effect.

[0082] In some specific embodiments of the present invention, a main controller is also included. The main controller is connected to the first push rod 112 and the rotary motor 121 of the first clamping part 100, the second push rod 211 and the slide table 231 of the second clamping part 200, and the third push rod of the drive part 300, respectively, so as to control the operation of the first clamping part 100, the second clamping part 200 and the drive part 300, so as to automatically control the installation or removal of the plug 430 and the nozzle body 420.

[0083] The present invention also provides a method for using a fixed throttle valve, which employs a fixed throttle valve as described in any of the above specific embodiments, and includes the following steps:

[0084] The first clamping part 100 and the second clamping part 200 passing through the first clamping part 100 are arranged opposite to the throttle valve mechanism 400, so that the first gripper 131 and the second gripper 221 can be arranged opposite to the opening of the receiving cavity 410.

[0085] First, the first push rod 112 of the first clamping part 100 is activated, driving the push tube 140 to push the multiple first grippers 131, causing the first grippers 131 to open. Second, the third push rod of the drive part 300 is activated, driving the first clamping part 100 and the second clamping part 200 as a whole to move towards the receiving cavity 410, so that the multiple first grippers 131 can cover the outside of the plug 430. Finally, the first push rod 112 of the first clamping part 100 is activated in reverse, driving the push tube 140 to pull the multiple first grippers 131, causing the first grippers 131 to close, thereby clamping the plug 430.

[0086] The rotation motor 121 of the first clamping part 100 is started, driving the two bevel gears 123 to rotate in sequence. This, in turn, drives the mounting plate 134 and the multiple first grippers 131 on the mounting plate 134 to rotate together through the fixedly connected transmission tube 124 and fixing plate 132. At the same time, the third push rod of the drive part 300 is started in the opposite direction, driving the first clamping part 100 and the second clamping part 200 to move away from the receiving cavity 410. This causes the multiple first grippers 131 to cooperate with each other, twisting the plug 430 off from the opening side of the receiving cavity 410, thus completing the disassembly of the plug 430.

[0087] First, the slide 231 of the second clamping part 200 is activated, driving the second push rod 211, the connecting tube 222, and the second gripper 221 at the end of the connecting tube 222, which are fixed on the mounting bracket 232, to move towards the receiving cavity 410. The connecting tube 222 and the second gripper 221 pass through the push tube 140, and the connecting tube 222 and the second gripper 221 sequentially pass through the through holes of the push tube 140 and the mounting plate 134 to the interior of the receiving cavity 410. Next, the second push rod 211 of the second clamping part 200 is activated. The drive connecting rod 240 pulls the second gripper 221, causing the second gripper 221 to open. Then, the third push rod of the drive unit 300 is activated, driving the first clamping part 100 and the second clamping part 200 as a whole to move closer to the receiving cavity 410, so that the second gripper 221 can cover the outside of the nozzle body 420. Finally, the second push rod 211 of the second clamping part 200 is activated in the opposite direction, driving the connecting rod 240 to push the second gripper 221, causing the second gripper 221 to close, thereby clamping the nozzle body 420.

[0088] The third push rod of the reverse start drive unit 300 drives the first clamping part 100 and the second clamping part 200 to move away from the receiving cavity 410, so that the two second clamping claws 221 cooperate with each other to pull the nozzle body 420 out from the opening side of the receiving cavity 410, thus completing the disassembly of the nozzle body 420.

[0089] Repeat the above steps in reverse order to install the nozzle body 420 and the plug 430 in sequence, thereby completing the replacement of the nozzle body 420.

[0090] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A fixed throttle valve, characterized in that, include: A throttle valve mechanism is provided, wherein a receiving cavity for installing the nozzle body is provided inside the throttle valve mechanism, and a plug for sealing the receiving cavity is provided on the open side of the receiving cavity; A first clamping part is provided with a first clamping claw directly opposite the opening of the receiving cavity; The first clamping part can drive the first jaws to clamp the plug and install or remove the plug; The second clamping part has a second clamping claw directly opposite the opening of the receiving cavity; The second clamping part can drive the second jaw to clamp the nozzle body and install or remove the nozzle body; A driving unit is provided, wherein the first clamping part and the second clamping part are disposed on the driving unit, and the driving unit is used to drive the first clamping jaw and the second clamping jaw to move axially along the receiving cavity.

2. The fixed throttle valve according to claim 1, characterized in that, The first clamping part includes: A first clamping mechanism, wherein the first gripper is rotatably mounted on the first clamping mechanism; The first booster mechanism is connected to the first clamping mechanism via a push tube. The first booster mechanism can drive the push tube and move the first clamp along the axial direction of the receiving cavity so that the first clamp can open and close. A rotating mechanism is connected to the first clamping mechanism, and the rotating mechanism is capable of driving the first gripper to rotate axially about the receiving cavity.

3. The fixed throttle valve according to claim 2, characterized in that, The first clamping mechanism includes: A fixed plate, one side of which is connected to the rotating mechanism, and the push tube is movably inserted through the fixed plate; The mounting plate is spaced apart on the other side of the fixing plate. A plurality of first grippers are evenly arranged on the side of the mounting plate away from the fixing plate. The first grippers are rotatably connected to the mounting plate. A transmission plate is disposed between the fixed plate and the mounting plate, and is connected to a plurality of the first grippers respectively; The push tube passes through the transmission plate and is rotatably connected to the transmission plate. The mounting plate has a through hole at the end opposite to the push tube, for the second clamping part to pass through.

4. The fixed throttle valve according to claim 3, characterized in that, The transmission plate is evenly provided with a plurality of transmission rods, and the plurality of transmission rods are configured in a one-to-one correspondence with a plurality of first grippers. The end of the transmission rod away from the transmission plate is movably inserted through the mounting plate and rotatably connected to the corresponding first gripper.

5. The fixed throttle valve according to claim 1, characterized in that, The second clamping part includes: The second clamping mechanism, wherein the second gripper is disposed at one end of the second clamping mechanism; The second booster mechanism is connected to the second clamping mechanism via a connecting rod. The second booster mechanism can drive the connecting rod and move the second gripper along the axial direction of the receiving cavity so that the second gripper can open and close. The pushing mechanism, the second boosting mechanism, and the second clamping mechanism are all disposed on the pushing mechanism. The pushing mechanism can drive the second boosting mechanism and the second clamping mechanism to move along the axial direction of the receiving cavity so as to push the second gripper into the receiving cavity.

6. The fixed throttle valve according to claim 5, characterized in that, The second clamping mechanism includes: A connecting tube is provided through the first clamping part, one end of the connecting tube is provided on the pushing mechanism, and the other end of the connecting tube is symmetrically provided with a second clamping claw, which is rotatably connected to the connecting tube. The connecting rod passes through the connecting tube and is rotatably connected to one of the second grippers.

7. The fixed throttle valve according to claim 1, characterized in that, The drive unit includes: A slide rail is provided along the axial direction of the receiving cavity; A slide block is slidably disposed on the slide rail, and the slide block is used to connect the first clamping part and the second clamping part; A third booster mechanism is connected to the slide block and is used to drive the slide block to move along the slide rail.

8. The fixed throttle valve according to any one of claims 1 to 7, characterized in that, Also includes: support; The throttle valve mechanism can be mounted on one side of the bracket; The first clamping part, the second clamping part, and the driving part are all disposed on the bracket so that the first gripper and the second clamping part can be directly facing the receiving cavity.

9. The fixed throttle valve according to any one of claims 1 to 7, characterized in that, Also includes: Main controller; The main controller is connected to the first clamping part, the second clamping part, and the driving part respectively, and is used to control the operation of the first clamping part, the second clamping part, and the driving part.

10. A method of using a fixed throttle valve, comprising the fixed throttle valve as described in any one of claims 1 to 9, characterized in that, Includes the following steps: The first clamping part and the second clamping part passing through the first clamping part are arranged opposite to the throttle valve mechanism, so that the first clamp and the second clamp can be arranged opposite to the opening of the receiving cavity. The first clamping part drives the first jaw to open and close, clamping the plug. Then, the first clamping part drives the first jaw to rotate the plug around the axial direction of the receiving cavity. At the same time, the driving part drives the first clamping part to move the first jaw away from the receiving cavity along the axial direction of the receiving cavity, thereby completing the disassembly of the plug. The second clamping part first inserts the second jaw into the receiving cavity and drives the second jaw to open and close, so that the second jaw clamps the oil nozzle body. Then, the driving part drives the second clamping part to move the second jaw away from the receiving cavity along the axial direction of the receiving cavity, thereby completing the disassembly of the oil nozzle body. Repeat the above steps in reverse order to install the nozzle body and plug in sequence, thus completing the replacement of the nozzle body.

Images