A pressure balancing sleeve single-seat regulating valve for bellows and its use method

Abstract

The present invention relates to the technical field of regulating valves, specifically a single-seat regulating valve with a pressure-balancing sleeve for a bellows, comprising a valve body and a regulating mechanism, wherein the regulating mechanism is arranged directly above the valve body; a sealing disk is arranged above the valve body; the regulating mechanism comprises a support frame, an electric telescopic rod arranged above the support frame, and a self-lubricating transmission box arranged within the support frame, wherein the telescopic end of the electric telescopic rod is connected to the interior of the self-lubricating transmission box, and a transmission rod connected to the interior of the self-lubricating transmission box is arranged below the self-lubricating transmission box, and the lower end of the transmission rod passes through the sealing disk and is connected to a sealing column for sealing the valve body. The present invention utilizes an electric telescopic rod structure to replace the traditional motor operation, thereby greatly reducing the noise of the valve body when closing and opening the valve, while being able to provide good protection for the electric telescopic rod, having a self-lubricating effect, and being able to lubricate the running movable connection structure to prevent rust and abnormal noise.

Description

Technical Field

[0001] The present invention relates to a pressure balancing sleeve single-seat regulating valve for a bellows, in particular to a pressure balancing sleeve single-seat regulating valve for a bellows and a use method thereof, belonging to the technical field of regulating valves. Background Art

[0002] Bellows refers to a tubular elastic sensitive element made of foldable corrugated sheets connected along the folding and stretching direction. Bellows are widely used in instruments and meters. Their main purpose is to serve as a measuring element in pressure measuring instruments to convert pressure into displacement or force. Bellows have thinner walls and higher sensitivity, making them suitable for measuring low pressures.

[0003] When connecting bellows, a multi-layer sleeve pressure-balanced single-seat regulating valve is sometimes used to connect them according to the use requirements; however, the existing multi-layer sleeve pressure-balanced single-seat regulating valves all use the rotation of a motor or manual rotation to drive the screw rod to rotate above the valve body, so that the screw rod drives the sealing structure to move up and down in the valve body, thereby realizing the sealing and opening of the valve body;

[0004] The motor will produce a certain amount of noise when it rotates, which is quite noisy. At the same time, the screw structure on the valve body is exposed to the outside for a long time. After a certain period of time, it will corrode or rust. Therefore, it will cause abnormal sounds and noise when the screw rotates, which will not only cause sound pollution, but also the rust of the screw will affect the normal rotation effect of the screw.

[0005] Therefore, there is an urgent need to improve the pressure-balanced sleeve single-seat regulating valve to solve the above-mentioned problems. Summary of the Invention

[0006] The purpose of the present invention is to provide a pressure-balancing sleeve single-seat regulating valve for a bellows and a method for using the same. When opening and closing the valve, an electric telescopic rod structure is used instead of a traditional motor, thereby greatly reducing the noise of the valve body when closing and opening the valve. At the same time, the electric telescopic rod can be well protected and has a self-lubricating effect. As the valve opens, the operating movable connection structure can be automatically lubricated to prevent rust and abnormal noise.

[0007] In order to achieve the above objectives, the main technical solutions adopted by the present invention include:

[0008] A pressure-balancing sleeve single-seat regulating valve for a bellows, comprising a valve body and a regulating mechanism, wherein the regulating mechanism is arranged directly above the valve body; a sealing disk is arranged above the valve body;

[0009] The adjustment mechanism includes a support frame, an electric telescopic rod arranged above the support frame, and a self-lubricating transmission box arranged in the support frame. The telescopic end of the electric telescopic rod is connected to the interior of the self-lubricating transmission box. A transmission rod connected to the interior of the self-lubricating transmission box is arranged below the self-lubricating transmission box. The lower end of the transmission rod passes through the sealing disk and is connected to a sealing column for sealing the valve body.

[0010] Preferably, the support frame includes two symmetrically arranged support plates, two symmetrically arranged second support frames and a sealing body, the two support plates are respectively arranged on both sides of the sealing disk, the two second support frames are respectively vertically arranged on the outside of the upper end surfaces of the two support plates, the sealing body is arranged on the upper end surface of the second support frame, and the sealing body is used to protect and seal the electric telescopic rod.

[0011] Preferably, the sealing body includes a chassis arranged on the upper end surfaces of the two second support frames and a sealing cover for sealing. The outer ring of the upper end surface of the chassis is provided with an annular thread groove, and an external thread mechanism adapted to the annular thread groove is provided below the outer surface of the sealing cover.

[0012] Preferably, support rods are provided on both sides of the upper end surface of the sealing cover, sleeves are rotatably connected to the support rods, and the inner wall of the sealing cover is attached with a first sound insulation cotton.

[0013] Preferably, the self-lubricating transmission box includes a protective box, a gear arranged inside the protective box and a self-lubricating structure. A rotating rod is connected to the protective box for transverse rotation. The gear is connected to the middle part of the rotating rod. The self-lubricating structure is used to lubricate the gear.

[0014] Preferably, the telescopic end of the electric telescopic rod passes through the interior of the protective box and is vertically connected to a first transmission plate, the upper end of the transmission rod passes through the interior of the protective box and is vertically connected to a second transmission plate, the first transmission plate and the second transmission plate are respectively arranged on both sides of the gear, and the first transmission plate and the second transmission plate are each provided with a plurality of evenly distributed teeth meshing with the gear on one side close to the gear.

[0015] Preferably, the self-lubricating structure includes an oil storage tank arranged inside the protection box, a first connecting plate is transversely provided on the lower end surface of the telescopic end of the electric telescopic rod, a sealing pressure plate is slidably provided inside the oil storage tank, and a sliding rod is provided on the upper end surface of the sealing pressure plate and penetrates to the upper end surface of the oil storage tank, and the sliding rod is connected to the first connecting plate;

[0016] An air vent is provided on the upper end surface of the oil storage tank, and lubricating oil is stored inside the oil storage tank. An oil pipe is provided on the side of the oil storage tank close to the gear, and the oil pipe extends to above the gear. An oil drain port is provided on the lower end surface of the oil pipe located directly above the gear.

[0017] Preferably, the front end face of the protective box is an open structure, and a cover plate is provided on the front end face of the protective box. Magnetic holes are provided on the upper end face and both sides of the cover plate. Plug holes are provided on the upper end face and both sides of the protective box. The plug holes and the magnetic holes are fixed through magnetic rods, and a handle is provided on the front end face of the cover plate.

[0018] Preferably, a protection tube for protecting the electric telescopic rod is provided between the upper end surface of the self-lubricating transmission box and the lower end surface of the support frame, and a second sound insulation cotton is provided on the inner wall of the protection tube.

[0019] A method for using a pressure-balancing sleeve single-seat regulating valve for a bellows comprises the following steps:

[0020] S1: When the regulating valve is opened, the electric telescopic rod is turned on, causing the telescopic end of the electric telescopic rod to extend in the protection box, thereby driving the first transmission plate to move downward. The teeth on the inner side of the first transmission plate are engaged with the gear to drive the second transmission plate to move upward. The second transmission plate is also engaged with the gear through the teeth on the inner side. The upward movement of the second transmission plate drives the transmission rod below and the sealing column inside the valve body to move upward, thereby opening the valve body;

[0021] S2: By turning on the electric telescopic rod, the telescopic end of the electric telescopic rod is retracted in the protection box, thereby driving the first transmission plate to move upward, and the teeth on the inner side surface of the first transmission plate are engaged with the gear to drive the second transmission plate to move downward. The second transmission plate is also engaged with the gear through the teeth on the inner side surface. The downward movement of the second transmission plate drives the transmission rod below and the sealing column inside the valve body to move downward, thereby closing the valve body;

[0022] S3: At the same time, when the regulating valve is opening, the extension of the electric telescopic rod will drive the sliding rod connected by the first connecting plate to move downward, thereby driving the sealing pressure plate to move downward in the oil storage tank, squeezing the lubricating oil. The lubricating oil will be discharged to the gear through the oil pipe and the oil drain port for lubrication, ensuring the later lubrication effect and preventing rust and abnormal noise.

[0023] The present invention has at least the following beneficial effects:

[0024] 1. When the two connected bellows are connected or closed according to the use requirements, the valve body needs to be opened or closed to achieve this. When the valve body is opening or closing the valve, the electric telescopic rod is used to replace the traditional structure in which the motor drives the screw to rotate, so that its closing structure becomes simpler, which can greatly reduce the noise of the valve body during closing and opening. At the same time, by utilizing the sealing body, the protective tube and the sound insulation cotton arranged inside the two, the electric telescopic rod can be protected and the noise can be reduced during operation. By utilizing the self-lubricating transmission box, the equipment can automatically lubricate the teeth meshing with the first transmission plate and the second transmission plate when opening the valve, so that it will not rust like the screw rod and will not make abnormal noise during operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0026] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0027] Figure 2 This is a cross-sectional view of the self-lubricating structure of the present invention;

[0028] Figure 3 is a cross-sectional view of the present invention;

[0029] Figure 4 This is a schematic diagram of the internal three-dimensional structure of the transmission box of the present invention;

[0030] Figure 5 This is a schematic diagram of the interior of the transmission case of the present invention;

[0031] Figure 6 It is a schematic diagram of the three-dimensional structure of the sealing cover of the present invention;

[0032] Figure 7 It is a schematic diagram of the three-dimensional structure of the chassis of the present invention.

[0033] In the figure, 1-valve body, 2-adjusting mechanism, 201-support frame, 202-electric telescopic rod, 203-self-lubricating transmission box, 3-sealing disk, 4-transmission rod, 5-sealing column, 6-support plate, 7-second support frame, 8-sealing body, 801-chassis, 802-sealing cover, 803-annular thread groove, 804-external thread mechanism, 805-support rod, 806-sleeve, 807-first sound insulation cotton, 9-protection box, 10-gear, 11-self-lubricating structure, 1101-oil storage tank, 1102-first connecting plate, 1103-sealing pressure plate, 1104-sliding rod, 1105-air vent, 1106-oil pipe, 1107-oil drain port, 12-rotating rod, 13-first transmission plate, 14-second transmission plate, 15-teeth, 16-cover plate, 17-magnetic hole, 18-jack, 19-magnetic rod, 20-handle, 21-protective tube, 22-second sound insulation cotton. DETAILED DESCRIPTION

[0034] The following will describe the implementation methods of the present application in detail with reference to the accompanying drawings and examples, so that the implementation process of how the present application applies technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.

[0035] like Figure 1-Figure 7 As shown, the novel pipeline regulating valve provided in this embodiment includes a valve body 1 and a regulating mechanism 2. The regulating mechanism 2 is arranged directly above the valve body 1; a sealing disk 3 is arranged above the valve body 1;

[0036] The adjusting mechanism 2 includes a support frame 201, an electric telescopic rod 202 arranged above the support frame 201, and a self-lubricating transmission box 203 arranged in the support frame 201. The telescopic end of the electric telescopic rod 202 is connected to the interior of the self-lubricating transmission box 203. A transmission rod 4 connected to the interior of the self-lubricating transmission box 203 is arranged below the self-lubricating transmission box 203. The lower end of the transmission rod 4 passes through the sealing disk 3 and is connected to a sealing column 5 for sealing the valve body 1.

[0037] Further, such as Figure 1 and Figure 3 As shown, the support frame 201 includes two symmetrically arranged support plates 6, two symmetrically arranged second support frames 7 and a sealing body 8. The two support plates 6 are respectively arranged on both sides of the sealing disk 3, and the two second support frames 7 are respectively vertically arranged on the outside of the upper end surfaces of the two support plates 6. The sealing body 8 is arranged on the upper end surface of the second support frame 7. The sealing body 8 is used to protect and seal the electric telescopic rod 202.

[0038] Furthermore, Figure 3 Figure 6 and Figure 7As shown, the sealing body 8 includes a chassis 801 arranged on the upper end surfaces of the two second support frames 7 and a sealing cover 802 for sealing. The outer ring of the upper end surface of the chassis 801 is provided with an annular thread groove 803, and the lower part of the outer surface of the sealing cover 802 is provided with an external thread mechanism 804 adapted to the annular thread groove 803. By utilizing the setting of threaded connection between the annular thread groove 803 and the external thread structure 804, the sealing cover 802 can be quickly connected to the chassis 801 and the electric telescopic rod 802 is sealed and protected.

[0039] Further, if Figure 3 and Figure 6 As shown, support rods 805 are provided on both sides of the upper end surface of the sealing cover 802, and a sleeve 806 is rotatably connected to the support rod 805. The rotatable connection between the sleeve 806 and the support rod 805 facilitates the subsequent rotation and removal of the sealing cover 802. The inner wall of the sealing cover 802 is attached with a first sound insulation cotton 807. The setting of the first sound insulation cotton 807 can soundproof the operation of the electric telescopic rod 202 inside the sealing body 8.

[0040] Further, such as Figure 4 and Figure 5 As shown, the self-lubricating transmission box 203 includes a protective box 9, a gear 10 arranged inside the protective box 9, and a self-lubricating structure 11. A rotating rod 12 is connected to the protective box 9 for transverse rotation. The gear 10 is connected to the middle part of the rotating rod 12. The self-lubricating structure 11 is used to lubricate the gear 10.

[0041] Furthermore, Figure 4 and Figure 5 As shown, the telescopic end of the electric telescopic rod 202 passes through the interior of the protective box 9 and is vertically connected to the first transmission plate 13. The upper end of the transmission rod 4 passes through the interior of the protective box 9 and is vertically connected to the second transmission plate 14. The first transmission plate 13 and the second transmission plate 14 are respectively arranged on both sides of the gear 10. The first transmission plate 13 and the second transmission plate 14 are each provided with a plurality of evenly distributed teeth 15 meshing with the gear 10 on one side close to the gear 10.

[0042] Further, if Figure 2 、 Figure 4 and Figure 5 As shown, the self-lubricating structure 11 includes an oil storage tank 1101 arranged inside the protective box 9, a first connecting plate 1102 is horizontally provided on the lower end surface of the telescopic end of the electric telescopic rod 202, a sealing pressure plate 1103 is slidably provided inside the oil storage tank 1101, and a sliding rod 1104 is provided on the upper end surface of the sealing pressure plate 1103 and penetrates the upper end surface of the oil storage tank 1101, and the sliding rod 1104 is connected to the first connecting plate 1102;

[0043] An air vent 1105 is provided on the upper end face of the oil storage tank 1101. The air vent 1105 is provided to exhaust when the sealing pressure plate 1103 is retracted upward. Lubricating oil is stored inside the oil storage tank 1101. An oil pipe 1106 is provided on the side of the oil storage tank 1101 close to the gear 10. The oil pipe 1106 extends to above the gear 10. An oil drain port 1107 is provided on the lower end face of the oil pipe 1106 directly above the gear 10.

[0044] Furthermore, if Figure 4 As shown, the front end face of the protection box 9 is an open structure. The setting of the open structure is convenient for repairing and maintaining the parts inside the protection box 9. A cover plate 16 is provided on the front end face of the protection box 9. The cover plate 16 is used to close the protection box 9 and protect the parts inside. Magnetic holes 17 are provided on the upper end face and both sides of the cover plate 16. Plug holes 18 are provided on the upper end face and both sides of the protection box 9. The plug holes 18 and the magnetic holes 17 are fixed through a magnetic rod 19. The magnetic rod 19 passes through the plug hole 18 and the magnetic hole 17 and is adsorbed on each other, so that the cover plate 16 is easy to disassemble. A handle 20 is provided on the front end face of the cover plate 16. The setting of the handle 20 makes it easy to take the cover plate 16.

[0045] Furthermore, Figure 1 and Figure 3 As shown, a protective tube 21 for protecting the electric telescopic rod 202 is provided between the upper end surface of the self-lubricating transmission box 203 and the lower end surface of the support frame 201, and a second sound insulation cotton 22 is provided on the inner wall of the protective tube 21, which can provide good protection for the electric telescopic rod 202 to prevent damage. The setting of the second sound insulation cotton 22 can improve the noise reduction effect of the operation of the electric telescopic rod 202.

[0046] A method for using a pressure-balancing sleeve single-seat regulating valve for a bellows comprises the following steps:

[0047] S1: When the regulating valve is opened, the electric telescopic rod 202 is turned on, so that the telescopic end of the electric telescopic rod 202 extends in the protection box 9, thereby driving the first transmission plate 14 to move downward. The teeth 15 on the inner side of the first transmission plate 14 are engaged with the gear 10 to drive the second transmission plate 14 to move upward. The second transmission plate 14 is also engaged with the gear 10 through the teeth 15 on the inner side. The upward movement of the second transmission plate 14 drives the transmission rod 4 below and the sealing column 5 inside the valve body 1 to move upward, thereby realizing the opening of the valve body 1;

[0048] S2: By turning on the electric telescopic rod 202, the telescopic end of the electric telescopic rod 202 is retracted in the protective box 9, thereby driving the first transmission plate 14 to move upward. The teeth 15 on the inner side of the first transmission plate 14 are engaged with the gear 10 to drive the second transmission plate 14 to move downward. The second transmission plate 14 is also engaged with the gear 10 through the teeth 15 on the inner side. The downward movement of the second transmission plate 14 drives the transmission rod 4 below and the sealing column 5 inside the valve body 1 to move downward, thereby closing the valve body 1.

[0049] S3: At the same time, when the regulating valve is opening, the extension of the electric telescopic rod 202 will drive the sliding rod 1104 connected by the first connecting plate 1102 to move downward, thereby driving the sealing pressure plate 1103 to move downward in the oil storage tank 1101, squeezing the lubricating oil, and the lubricating oil will be discharged to the gear 10 through the oil pipe 1106 and the oil drain port 1107 for lubrication, ensuring the later lubrication effect and preventing rust and abnormal noise.

[0050] For example, certain words are used in the specification and claims to refer to specific components. Those skilled in the art should understand that hardware manufacturers may use different terms to refer to the same component. This specification and claims do not use differences in names as a way to distinguish components, but use differences in the functions of the components as the criteria for distinction. For example, "including" mentioned throughout the specification and claims is an open term and should be interpreted as "including but not limited to". "Approximately" means that within an acceptable error range, those skilled in the art can solve technical problems within a certain error range and basically achieve technical effects.

[0051] It should be noted that the terms "include," "comprises," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a product or system comprising a series of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such product or system. In the absence of further limitations, an element defined by the phrase "comprising a..." does not exclude the presence of other identical elements in the product or system comprising the element.

[0052] The foregoing description shows and describes several preferred embodiments of the present invention. However, as previously stated, it should be understood that the present invention is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. Rather, the present invention can be used in various other combinations, modifications, and environments and can be modified within the scope of the inventive concept described herein by the teachings above or by techniques or knowledge in the relevant art. Modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention are intended to be within the scope of the appended claims.

Claims

1. A pressure balancing sleeve single-seat regulating valve for a bellows, comprising a valve body (1) and a regulating mechanism (2), characterized in that: The regulating mechanism (2) is arranged directly above the valve body (1); a sealing disk (3) is arranged above the valve body (1); The regulating mechanism (2) comprises a support frame (201), an electric telescopic rod (202) arranged above the support frame (201), and a self-lubricating transmission box (203) arranged in the support frame (201), the telescopic end of the electric telescopic rod (202) is connected to the interior of the self-lubricating transmission box (203), a transmission rod (4) connected to the interior of the self-lubricating transmission box (203) is arranged below the self-lubricating transmission box (203), the lower end of the transmission rod (4) passes through the sealing disk (3) and is connected to a sealing column (5) for sealing the valve body (1), the support frame (201) comprises two symmetrically arranged support plates (6), two symmetrically arranged second support frames (7) and a sealing body (8), the two support plates (6) are respectively arranged on both sides of the sealing disk (3), the two second support frames (7) are respectively arranged The sealing body (8) is respectively arranged vertically on the outer sides of the upper end surfaces of the two support plates (6), and the sealing body (8) is arranged on the upper end surface of the second support frame (7). The sealing body (8) is used to protect and seal the electric telescopic rod (202). The sealing body (8) includes a chassis (801) arranged on the upper end surfaces of the two second support frames (7) and a sealing cover (802) for sealing. The outer ring of the upper end surface of the chassis (801) is provided with an annular thread groove (803). An external thread mechanism (804) adapted to the annular thread groove (803) is provided below the outer surface of the sealing cover (802). Support rods (805) are provided on both sides of the upper end surface of the sealing cover (802). A sleeve (806) is rotatably connected to the support rod (805). The inner wall of the sealing cover (802) is attached with a first sound insulation cotton (807).

2. A pressure balancing sleeve single-seat regulating valve for bellows according to claim 1, characterized in that: The self-lubricating transmission box (203) comprises a protection box (9), a gear (10) arranged inside the protection box (9), and a self-lubricating structure (11); a rotating rod (12) is connected to the inside of the protection box (9) for transverse rotation; the gear (10) is connected to the middle part of the rotating rod (12); and the self-lubricating structure (11) is used to lubricate the gear (10).

3. A pressure balancing sleeve single-seat regulating valve for bellows according to claim 2, characterized in that: The telescopic end of the electric telescopic rod (202) passes through the interior of the protection box (9) and is vertically connected to a first transmission plate (13); the upper end of the transmission rod (4) passes through the interior of the protection box (9) and is vertically connected to a second transmission plate (14); the first transmission plate (13) and the second transmission plate (14) are respectively arranged on both sides of the gear (10); and a plurality of evenly distributed teeth (15) meshing with the gear (10) are provided on one side of the first transmission plate (13) and the second transmission plate (14) close to the gear (10).

4. A pressure balancing sleeve single-seat regulating valve for bellows according to claim 3, characterized in that: The self-lubricating structure (11) includes an oil storage tank (1101) arranged inside the protection box (9); a first connecting plate (1102) is transversely arranged on the lower end surface of the telescopic end of the electric telescopic rod (202); a sealing pressure plate (1103) is slidably arranged inside the oil storage tank (1101); a sliding rod (1104) is provided on the upper end surface of the sealing pressure plate (1103) and extends through the upper end surface of the oil storage tank (1101); and the sliding rod (1104) is connected to the first connecting plate (1102); An air vent (1105) is provided on the upper end surface of the oil storage tank (1101), and lubricating oil is stored inside the oil storage tank (1101). An oil delivery pipe (1106) is provided on a side of the oil storage tank (1101) close to the gear (10), and the oil delivery pipe (1106) extends above the gear (10). An oil discharge port (1107) is provided on the lower end surface of the oil delivery pipe (1106) located directly above the gear (10).

5. A pressure balancing sleeve single-seat regulating valve for bellows according to claim 4, characterized in that: The front end face of the protection box (9) is an open structure. A cover plate (16) is provided on the front end face of the protection box (9). Magnetic holes (17) are provided on the upper end face and both sides of the cover plate (16). Insertion holes (18) are provided on the upper end face and both sides of the protection box (9). The insertion holes (18) and the magnetic holes (17) are fixed through magnetic rods (19). A handle (20) is provided on the front end face of the cover plate (16).

6. A pressure balancing sleeve single-seat regulating valve for a bellows according to claim 5, characterized in that: A protection tube (21) for protecting the electric telescopic rod (202) is provided between the upper end surface of the self-lubricating transmission box (203) and the lower end surface of the support frame (201), and a second sound insulation cotton (22) is provided on the inner wall of the protection tube (21).

7. A method for using the pressure-balancing sleeve single-seat regulating valve for a bellows according to claim 6, characterized in that: The steps include: S1: When the regulating valve is opened, the electric telescopic rod (202) is opened, so that the telescopic end of the electric telescopic rod (202) is extended in the protection box (9), thereby driving the first transmission plate (13) to move downward, and the second transmission plate (14) is driven to move upward by the arrangement of the teeth (15) on the inner side surface of the first transmission plate (13) being engaged with the gear (10). The second transmission plate (14) is also engaged with the gear (10) through the teeth (15) on the inner side surface, and the upward movement of the second transmission plate (14) drives the transmission rod (4) below and the sealing column (5) inside the valve body (1) to move upward, thereby realizing the opening of the valve body (1); S2: by turning on the electric telescopic rod (202), the telescopic end of the electric telescopic rod (202) is retracted in the protection box (9), thereby driving the first transmission plate (13) to move upward, and utilizing the arrangement of the teeth (15) on the inner side surface of the first transmission plate (13) being meshed with the gear (10) to drive the second transmission plate (14) to move downward, and the second transmission plate (14) is also meshed with the gear (10) through the teeth (15) on the inner side surface, and utilizing the downward movement of the second transmission plate (14), thereby driving the transmission rod (4) below and the sealing column (5) inside the valve body (1) to move downward, thereby achieving the closing of the valve body (1); S3: At the same time, when the regulating valve is opening, the extension of the electric telescopic rod (202) drives the sliding rod (1104) connected through the first connecting plate (1102) to move downward, thereby driving the sealing pressure plate (1103) to move downward in the oil storage tank (1101), squeezing the lubricating oil, and the lubricating oil is discharged to the gear (10) through the oil pipe (1106) and the oil discharge port (1107) for refueling and lubrication, thereby ensuring the later lubrication effect and preventing rust and abnormal noise.

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