Double-interface closed natural gas intelligent regulating valve

Abstract

The invention relates to the technical field of natural gas regulating valves, and discloses a double-interface closed natural gas intelligent regulating valve which comprises a valve body and a valve cover, a pressure assembly for controlling flow input and output is installed between the valve body and the valve cover, and the two ends of the valve body are provided with an access port and an access port respectively. A first channel and a second channel which are communicated with the interior of the valve body are formed in the connecting inlet and the connecting outlet respectively, a first sealing opening is formed in the first channel, a sealing block is movably connected in the first sealing opening in a sleeved mode, the sealing block achieves opening and closing of the first channel through height changes, a second sealing opening is formed in the second channel, and a ball valve is rotationally connected in the second sealing opening. And the ball valve rotates to realize the on-off of the second channel. And one end of the bolt plate is inserted into the bolt opening, so that the regulating button drives the regulating assembly to rotate synchronously while the regulating button enables the sealing plug to seal the first channel, the moving plate moves, the ball valve rotates, and therefore a low-pressure natural gas outlet is sealed, and natural gas is prevented from leaking to a pipeline below.

Description

Technical Field

[0001] The present invention relates to the technical field of natural gas regulating valves, and in particular to a dual-interface closed natural gas intelligent regulating valve. Background Art

[0002] Natural gas regulating valves are key equipment in natural gas transmission and distribution systems. They are used to control the flow, pressure and direction of natural gas to ensure safe, stable and efficient operation of the system. In urban natural gas pipelines, they are used to regulate the natural gas supply pressure for residential and commercial users. In industrial natural gas systems, they are used to provide a stable supply of natural gas for chemical plants, power plants, etc.

[0003] At present, the existing natural gas regulating valve operates through the internal actuator to convert high-pressure natural gas into low-pressure natural gas for output, and the closing of the natural gas regulating valve mainly relies on turning the adjusting screw above the valve body to make the screw rise. Under the force of the lever, the sealing plug seals one end of the input interface, thereby blocking the natural gas supply.

[0004] However, since the sealing plug is placed inside the valve body for a long time, it will gradually lose its elasticity, resulting in performance degradation. At the same time, natural gas contains corrosive substances such as hydrogen sulfide during transportation. Long-term contact will cause corrosion of the sealing plug material. In addition, during transportation, the natural gas regulating valve operates in a high temperature environment, and the sealing plug will undergo thermal degradation, resulting in hardening, cracking or deformation, which greatly shortens the service life of the sealing plug, making it impossible to fully seal the interface and posing a risk of natural gas leakage. In order to avoid this risk, another valve is often added to the pipeline to control the flow of delivery. However, in terms of operation, there are certain defects due to the cumbersome operation, the cumbersomeness of pipeline installation, and the increased cost of maintenance. Summary of the invention

[0005] 1. Technical issues to be resolved

[0006] In view of the deficiencies in the prior art, the present invention provides a dual-interface closed natural gas intelligent regulating valve, which has the advantages of being able to perform dual-interface sealing on the valve body, improving safety of use, and effectively avoiding leakage of natural gas due to aging and damage of the sealing plug, and the increase of the valve body, which leads to high operation and maintenance costs, and cumbersome valve body closing. It solves the problems of using sealing plugs as the main parts for natural gas blocking at this stage, which are prone to aging and damage, and natural gas leakage, and installing multiple valve bodies, resulting in high operation and maintenance costs, and cumbersome valve body closing.

[0007] (II) Technical solution

[0008] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a dual-port closed natural gas intelligent regulating valve, comprising a valve body and a valve cover, a pressure component for controlling flow input and output is installed between the valve body and the valve cover, an inlet and an outlet are respectively provided at both ends of the valve body, the inlet and the outlet are respectively provided with a first channel and a second channel connected to the valve body, the inlet is connected to a high-pressure natural gas pipeline, and the outlet is connected to a low-pressure natural gas pipeline, and the high-pressure natural gas connected is regulated to a low pressure through the natural gas regulating valve and then transported to the low-pressure natural gas pipeline.

[0009] A first sealing port is provided in the first channel, and a sealing block is movably sleeved in the first sealing port. The sealing block realizes the opening and closing of the first channel by changing the height. The diameter of the first sealing port is larger than the first channel. At the same time, the diameter of the sealing block matches the diameter in the first sealing port. When the sealing block moves upward to the limit, the first channel is sealed to block the input of high-pressure natural gas.

[0010] The second channel is provided with a second sealing port, in which a ball valve is rotatably connected. The ball valve realizes the opening and closing of the second channel by rotation. The diameter of the interface opened by the ball valve matches the diameter in the second channel. When the interface of the ball valve is connected to the second channel, the discharge of natural gas is realized. The ball valve rotates to make the interface misaligned with the second channel, thereby blocking the output of low-pressure natural gas.

[0011] An air duct and a stabilizing slide groove which are interconnected are provided in the valve body. The air duct is communicated with the first sealing port, and the stabilizing slide groove is communicated with the second sealing port.

[0012] An installation groove is arranged in the valve body, a recovery channel connected with the air duct and a fixing interface connected with the fixing slide groove are arranged in the installation groove, and a silicone gasket is arranged in the recovery channel.

[0013] A transmission member for driving the ball valve to rotate and an air guide member for controlling the lifting of the sealing block are movably connected in the stable slide groove and the air duct respectively. The transmission member and the air guide member are connected, and the displacement of the air guide member is utilized to form a medium recovery space in the recovery channel.

[0014] The air duct and the stabilizing groove are horizontally arranged at the bottom of the installation groove, while the stabilizing interface is vertically arranged at the center position of the valve body, and the stabilizing interface is connected with the stabilizing groove, which is convenient for the transmission operation of the driving part and the ball valve. At the same time, under the transmission force, the air guide part is pushed to generate positive pressure in the air duct, push the sealing block upward, and use the reverse pressure to suck the remaining natural gas in the regulating valve into the recovery channel.

[0015] The silicone gasket is elastic and has micropores on the top. Under reverse pressure, when natural gas is sucked into the recovery channel, the gas enters the recovery channel from the micropores.

[0016] A regulating interface is arranged on the valve cover, and a regulating button is threadedly connected to the regulating interface.

[0017] A regulating assembly connected to the pressure assembly is provided in the valve cover, and the regulating assembly includes a rotating rod, a synchronizing member and a driving member. The rotating rod is movably sleeved in the stable interface, and one end of the rotating rod rotates synchronously with the regulating button through the synchronizing member, and the other end of the rotating rod is connected to a driving member that drives the transmission member and the air guide member to generate displacement.

[0018] The synchronization part is used to control whether the rotating rod is connected to the regulating knob. When connected, the regulating knob can drive the rotating rod to rotate at the same time. When not connected, the regulating knob does not drive the rotating rod to rotate. When the regulating knob drives the rotating rod to rotate, the transmission part and the gas guide part are displaced, thereby realizing the switching of natural gas blocking and connecting discharge operations in the valve body.

[0019] Furthermore, the synchronous member can drive the rotating rod to move up and down simultaneously whether it is connected or not connected to the regulating button.

[0020] As a further improvement of the above scheme, the synchronizer includes a sleeve button fixed on the top of the rotating rod, a sliding groove is provided on the sleeve button, a latch plate is slidably connected in the sliding groove, and a latch opening is provided in the regulating button, one end of the latch plate is inserted into the latch opening.

[0021] Through the above technical solution, the latch plate is pushed so that one end of the front end of the latch plate is inserted into the latch opening, so that when the control knob is turned, the control knob drives the entire control assembly to rotate, and when the latch plate is separated from the latch opening, the control knob rotates independently without driving the control assembly to rotate.

[0022] As a further improvement of the above solution, limiting sliding grooves are provided on two opposite sides of the sliding groove, and limiting sliding buttons are provided on two opposite sides of the latch plate, and the limiting sliding buttons are slidably connected in the limiting sliding grooves.

[0023] Through the above technical solution, when the latch plate is pushed or pulled, the limiting sliding button slides in the limiting sliding groove, thereby improving the stability of the displacement of the latch plate and preventing the latch plate from escaping from the sliding groove.

[0024] As a further improvement of the above scheme, the driving member includes a sleeve rod, and a sleeve hole is opened at the bottom end of the rotating rod. The sleeve rod is movably sleeved in the sleeve hole. A connecting rod is fixed at one end of the sleeve rod, and the side of the connecting rod is movably sleeved in the stable interface.

[0025] Through the above technical solution, the inside of the sleeve hole is octagonal, and the sleeve rod is consistent with the shape and size of the sleeve hole. When the rotating rod rotates, the connecting rod is driven to rotate at the same time. The stability of the rotation of the connecting rod is improved through the force of the side diameter of the connecting rod being consistent with the inner diameter of the stable interface.

[0026] As a further improvement of the above scheme, a driving gear is fixed at one end of the connecting rod, and a transmission button is fixed at the bottom of the ball valve, a transmission gear is fixed at one end of the transmission button, and the transmission part includes a movable plate movably connected in a stable slide groove, a limiting groove is opened in the movable plate, and the driving gear and the transmission gear are movably connected in the limiting groove.

[0027] Through the above technical solution, the diameters of the driving gear and the transmission gear match the width of the limiting groove, thereby improving the stability of the movable plate and preventing the movable plate from being offset when the driving gear and the transmission gear rotate.

[0028] As a further improvement of the above solution, a rubber ring is fixed in the interface connecting the stabilizing slide groove and the second sealing port, and the rubber ring is fitted on the side of the transmission button.

[0029] Through the above technical solution, the rubber ring is used to increase the sealing between the transmission button and the interface to prevent gas from penetrating into the stable slide groove.

[0030] As a further improvement of the above solution, a tooth profile plate is provided on one side of the limiting groove, and the side portions of the transmission gear and the driving gear are meshed with the tooth profile plate.

[0031] Through the above technical solution, when the connecting rod drives the driving gear to rotate, the movable plate is displaced under the force of the meshing of the gear tooth profile and the tooth profile plate, causing the transmission gear to rotate, thereby realizing the connection and blocking operation between the ball valve interface and the second channel.

[0032] As a further improvement of the above scheme, the pressure assembly includes a rubber gasket fixed between the valve body and the valve cover and an auxiliary pressure plate attached to the rubber gasket. A tension spring is movably connected between the auxiliary pressure plate and the regulating button, and the tension spring is movably sleeved on the side of the rotating rod. At the same time, a pressure relief hole is opened on the valve cover, and the pressure relief hole runs through the valve cover.

[0033] Through the above technical solution, the valve body and the valve cover are fastened and fixed by screws, and the edge of the rubber gasket is clamped between the valve body and the valve cover, so that the valve body and the valve cover are separated into two independent spaces. A lower space is formed between the valve body and the rubber gasket, and an upper space is formed between the valve cover and the rubber gasket. When natural gas enters the lower space, the rubber gasket bulges upward, and after the natural gas in the lower space is output, the rubber gasket returns to a horizontal state.

[0034] As a further improvement of the above scheme, the pressure assembly also includes a lifting member connected to the rotating rod, the lifting member consists of a lifting tube, a lower clamp and an upper clamp, the lower clamp and the upper clamp are arranged in parallel at one end of the lifting tube, and are clamped on the axial line on the opposite side of the rubber gasket and the auxiliary pressure plate, and the lifting tube is movably connected to the rotating rod.

[0035] Through the above technical solution, the spacing between the lower clamping plate and the upper clamping plate matches the thickness of the rubber gasket and the auxiliary pressure plate after stacking, and is clamped and fixed by the lower clamping plate and the upper clamping plate. When high-pressure natural gas is input into the valve body, the rubber gasket expands, causing the lifting part to slide up and down on the side of the rotating rod, thereby improving the stability of the deformation caused by the expansion or contraction of the rubber gasket.

[0036] As a further improvement of the above scheme, the pressure assembly also includes a guide member movably connected in the valve body, the guide member consists of a connecting plate and two side plates, the side plates are arranged opposite to each other on both sides of the connecting plate, and at the same time, stabilizing buttons are arranged opposite to each other on the mounting groove, and the side plates are rotatably connected to the stabilizing buttons.

[0037] A sealing plug is fixed at one end of the connecting plate, and a sleeve groove is opened at the other end. The sealing plug is fitted on one end of the first channel, and the sleeve groove is movably sleeved on the side of the lifting tube. At the same time, a limiting ring is set at the bottom end of the lifting tube, and the limiting ring is fitted on the bottom of the connecting plate.

[0038] Through the above technical solution, the reciprocating operation of the rubber gasket expansion and contraction drives the lifting tube to move up and down, and the guide member rotates on the side of the lifting tube through the sleeve groove, so that under the action of the lever, the sealing plug switches the opening and closing operations of the interface of the first channel.

[0039] As a further improvement of the above solution, the air guide member includes a push rod fixed to one end of the movable plate, a piston is fixed to one end of the push rod, and the piston is attached to the inner wall of the air duct.

[0040] Through the above technical solution, when the push rod drives the piston to move forward in the air duct, an adsorption force is generated between the space behind the piston and the air duct, so that the natural gas remaining in the valve body is sucked into the space behind the piston and the air duct through the micropores opened on the silicone gasket for storage, thereby avoiding natural gas leakage. When the push rod drives the piston to move backward in the opposite direction, the sealing block returns to the first sealing port, and the adsorbed natural gas is re-transported back to the valve body through the micropores for supply.

[0041] Compared with the prior art, the present invention provides a dual-interface closed natural gas intelligent regulating valve, which has the following beneficial effects:

[0042] 1. The dual-interface closed natural gas intelligent regulating valve is connected to the pin port by inserting one end of the pin plate. The regulating button makes the sealing plug seal the first channel. At the same time, the regulating button also drives the regulating component to rotate synchronously, so that the moving plate is displaced and the ball valve is rotated, thereby sealing the low-pressure natural gas inlet and preventing the natural gas from leaking to the pipeline below.

[0043] 2. The dual-interface closed natural gas intelligent regulating valve realizes the sealing of the docking outlet by moving the moving plate. The moving plate also drives the push rod to move, so that the piston is pushed in the air duct. Under the action of the internal air pressure, the sealing block moves upward to block the first channel, thereby avoiding leakage of the high-pressure natural gas inlet and further improving the sealing and safety of the valve body.

[0044] 3. The dual-interface closed natural gas intelligent regulating valve moves the piston forward in the air duct. The pressure generated pushes the sealing block up to seal the first channel. At the same time, the remaining natural gas in the valve body can be sucked into the space between the back of the piston and the air duct through the recovery channel, thereby effectively avoiding natural gas leakage. When the piston moves in the opposite direction, the sucked natural gas can be re-transported into the valve body for supply, further improving the safety of the use of the regulating valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] Figure 1 It is a schematic diagram of the overall external structure of the device of the present invention;

[0046] Figure 2 It is a schematic diagram of the overall cross-sectional structure of the device of the present invention;

[0047] Figure 3 This is a schematic diagram of the cross-sectional structure of the valve body of the present invention;

[0048] Figure 4 It is a schematic diagram of the overall planar structure of the device of the present invention;

[0049] Figure 5 For the present invention Figure 2 Schematic diagram of the structure at A in the middle;

[0050] Figure 6 It is a schematic diagram of the connection structure of the tension spring, the regulating button and the auxiliary pressing plate of the present invention;

[0051] Figure 7 It is a schematic diagram of the partial connection structure between the sleeve hole button and the synchronous member of the present invention;

[0052] Figure 8 This is a schematic diagram of the split structure of the button and the latch plate of the present invention;

[0053] Fig. 9 It is a schematic diagram of the connection structure of the movable plate, the flow guide, the air guide and the ball valve of the present invention.

[0054] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0055] 1. Valve body;

[0056] 11. access port; 111. first passage; 112. first sealing port; 113. sealing block; 114. air duct;

[0057] 12. Access port; 121. Second channel; 122. Second sealing port; 123. Rubber ring; 124. Stable slide groove;

[0058] 13. Mounting slot; 131. Stable interface; 132. Recycling channel; 133. Silicone gasket; 134. Stable button;

[0059] 2. Valve cover;

[0060] 21. Control interface; 211. Pressure relief hole; 212. Control knob; 213. Latch port;

[0061] 3. Control components;

[0062] 31. Rotating rod; 311. Hole;

[0063] 32. Synchronous member; 321. Bushing button; 322. Sliding groove; 323. Latch plate; 324. Limiting slide groove; 325. Limiting slide button;

[0064] 33. driving member; 331. sleeve rod; 332. connecting rod; 333. driving gear;

[0065] 34. Tension spring;

[0066] 4. Pressure components;

[0067] 41. lifting member; 411. lifting tube; 412. lower clamping plate; 413. upper clamping plate; 414. limiting ring;

[0068] 42. Auxiliary pressing plate;

[0069] 43. Rubber gasket;

[0070] 44, flow guide; 441, connecting plate; 442, side plate; 443, sealing plug; 444, sleeve groove;

[0071] 5. Transmission member; 501. Moving plate; 502. Limiting groove; 503. Tooth profile plate;

[0072] 6. air guide; 601. push rod; 602. piston;

[0073] 7. Ball valve; 702. Transmission button; 703. Transmission gear. DETAILED DESCRIPTION

[0074] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions 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 of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0075] Embodiment 1

[0076] See also Figure 1 - Fig. 9 As shown, a dual-port closed natural gas intelligent regulating valve proposed in this embodiment includes a valve body 1 and a valve cover 2, a pressure component 4 for controlling flow input and output is installed between the valve body 1 and the valve cover 2, an inlet 11 and an outlet 12 are respectively provided at both ends of the valve body 1, the inlet 11 and the outlet 12 are respectively provided with a first channel 111 and a second channel 121 connected to the valve body 1, the inlet 11 is connected to the high-pressure natural gas pipeline, and the outlet 12 is connected to the low-pressure natural gas pipeline, and the high-pressure natural gas connected is regulated to a low pressure through the natural gas regulating valve and then transported to the low-pressure natural gas pipeline.

[0077] A first sealing opening 112 is provided in the first channel 111, and a sealing block 113 is movably sleeved in the first sealing opening 112. The sealing block 113 realizes the opening and closing of the first channel 111 by changing its height. The diameter of the first sealing opening 112 is larger than that of the first channel 111, and the diameter of the sealing block 113 coincides with the diameter in the first sealing opening 112. When the sealing block 113 moves upward to the limit, the first channel 111 is sealed to block the input of high-pressure natural gas.

[0078] The second channel 121 is provided with a second sealing port 122, and a ball valve 7 is rotatably connected in the second sealing port 122. The ball valve 7 realizes the opening and closing of the second channel 121 by rotation. The diameter of the interface opened by the ball valve 7 matches the diameter in the second channel 121. When the interface of the ball valve 7 is connected to the second channel 121, the discharge of natural gas is realized. The ball valve 7 rotates to make the interface misaligned with the second channel 121, thereby blocking the output of low-pressure natural gas.

[0079] An air duct 114 and a stabilizing groove 124 are provided in the valve body 1 . The air duct 114 is communicated with the first sealing port 112 , and the stabilizing groove 124 is communicated with the second sealing port 122 .

[0080] The valve body 1 is provided with a mounting groove 13 , in which a recovery channel 132 communicating with the air duct 114 and a stabilizing interface 131 communicating with the stabilizing slide groove 124 are provided, and a silicone gasket 133 is provided in the recovery channel 132 .

[0081] The stabilizing slide groove 124 and the air duct 114 are respectively and movably connected with a transmission member 5 for driving the ball valve 7 to rotate and an air guide member 6 for controlling the lifting and lowering of the sealing block 113. The transmission member 5 and the air guide member 6 are connected, and the displacement of the air guide member 6 is utilized to form a medium recovery space in the recovery channel 132.

[0082] The air duct 114 and the stabilizing groove 124 are horizontally arranged at the bottom of the installation groove 13, and the stabilizing interface 131 is vertically arranged at the center position in the valve body 1, and the stabilizing interface 131 is connected with the stabilizing groove 124, so as to facilitate the transmission operation of the driving member 33 and the ball valve 7. At the same time, under the transmission force, the air guide member 6 is pushed to generate positive pressure in the air duct, push the sealing block 113 to move upward, and use the reverse pressure to suck the remaining natural gas in the regulating valve into the recovery channel 132.

[0083] The silicone gasket 133 is elastic and has micropores on the top. When the natural gas is sucked into the recovery channel 132 under reverse pressure, the gas enters the recovery channel 132 through the micropores.

[0084] The valve cover 2 is provided with a regulating interface 21 , and a regulating button 212 is threadedly connected to the regulating interface 21 .

[0085] A regulating assembly 3 connected to the pressure assembly 4 is provided in the valve cover 2, and the regulating assembly 3 includes a rotating rod 31, a synchronous member 32 and a driving member 33. The rotating rod 31 is movably sleeved in the stable interface 131, and one end of the rotating rod 31 rotates synchronously with the regulating button 212 through the synchronous member 32, and the other end of the rotating rod 31 is connected to the driving member 33 that drives the transmission member 5 and the air guide member 6 to generate displacement.

[0086] The synchronization member 32 is used to control whether the rotating rod 31 is connected to the regulating button 212. When connected, the regulating button 212 can drive the rotating rod 31 to rotate at the same time. When not connected, the regulating button 212 does not drive the rotating rod 31 to rotate. When the regulating button 212 drives the rotating rod 31 to rotate, the transmission member 5 and the air guide member 6 are displaced, thereby realizing the switching of the natural gas blocking and connecting discharge operations in the valve body.

[0087] Furthermore, whether the synchronizer 32 is connected to the regulating button 212 or not, it can drive the rotating rod 31 to move up and down simultaneously.

[0088] The working principle of the dual-interface closed natural gas intelligent regulating valve proposed in this embodiment is: when in use, by connecting the inlet 11 to the high-pressure natural gas pipeline and the outlet 12 to the low-pressure natural gas pipeline, natural gas is input into the regulating valve, and the rubber gasket 43 expands and contracts up and down to make the guide member 44 realize the operation of the open and closed state. After the input high-pressure natural gas is adjusted to low-pressure natural gas, it is transported to the low-pressure natural gas pipeline, and when the high and low pressure switching operation is performed, the pressure is adjusted by rotating the regulating knob 212, and when the synchronizer 32 is connected to the regulating knob 212, the first channel 111 and the first sealing port 112 are blocked by rotating the regulating knob 212, and the remaining natural gas in the regulating valve is recovered to avoid leakage.

[0089] Embodiment 2

[0090] See also Figure 6 - Figure 8 As shown, the dual-interface closed natural gas intelligent regulating valve mentioned in this embodiment, on the basis of embodiment one, this embodiment also includes that the synchronization member 32 includes a sleeve button 321 fixed to the top of the rotating rod 31, a sliding groove 322 is provided on the sleeve button 321, a latch plate 323 is slidably connected in the sliding groove 322, and a latch opening 213 is provided in the regulating button 212, and one end of the latch plate 323 is inserted into the latch opening 213.

[0091] More specifically, by pushing the latch plate 323, one end of the front end of the latch plate 323 is inserted into the latch opening 213, so that when the control knob 212 is rotated, the control knob 212 drives the control component 3 to rotate as a whole, and when the latch plate 323 is out of the latch opening 213, the control knob 212 rotates independently without driving the control component 3 to rotate.

[0092] Furthermore, limiting sliding grooves 324 are provided on opposite sides of the sliding groove 322 , and limiting sliding buttons 325 are provided on opposite sides of the latch plate 323 , and the limiting sliding buttons 325 are slidably connected in the limiting sliding grooves 324 .

[0093] More specifically, when the latch plate 323 is pushed or pulled, the limiting sliding button 325 slides in the limiting sliding groove 324 , thereby improving the displacement stability of the latch plate 323 and preventing the latch plate 323 from being separated from the sliding groove 322 .

[0094] Furthermore, the driving member 33 includes a sleeve rod 331, and a sleeve hole 311 is opened at the bottom end of the rotating rod 31. The sleeve rod 331 is movably sleeved in the sleeve hole 311. A connecting rod 332 is fixed at one end of the sleeve rod 331, and the side of the connecting rod 332 is movably sleeved in the stabilizing interface 131.

[0095] More specifically, the sleeve hole 311 is octagonal in shape, and the sleeve rod 331 matches the shape and size of the sleeve hole 311. When the rotating rod 31 rotates, the connecting rod 332 is driven to rotate at the same time. The stability of the rotation of the connecting rod 332 is improved by the force of the side diameter of the connecting rod 332 matching the inner diameter of the stabilizing interface 131.

[0096] Furthermore, a driving gear 333 is fixed to one end of the connecting rod 332, and a transmission button 702 is fixed to the bottom of the ball valve 7, a transmission gear 703 is fixed to one end of the transmission button 702, and the transmission member 5 includes a movable plate 501 movably connected in the stabilizing slide groove 124, a limiting groove 502 is opened in the movable plate 501, and the driving gear 333 and the transmission gear 703 are movably connected in the limiting groove 502.

[0097] More specifically, the diameters of the driving gear 333 and the transmission gear 703 match the width of the limiting groove 502 , thereby improving the stability of the movable plate 501 and preventing the movable plate 501 from being offset when the driving gear 333 and the transmission gear 703 rotate.

[0098] Furthermore, a rubber ring 123 is fixed in the interface between the stabilizing slide groove 124 and the second sealing port 122 , and the rubber ring 123 is attached to the side of the transmission button 702 .

[0099] More specifically, the rubber ring 123 is used to increase the sealing between the transmission button 702 and the interface to prevent gas from penetrating into the stabilizing groove 124 .

[0100] Furthermore, a toothed plate 503 is provided on one side of the limiting groove 502 , and the sides of the transmission gear 703 and the driving gear 333 are meshed with the toothed plate 503 .

[0101] More specifically, when the connecting rod 332 drives the driving gear 333 to rotate, the movable plate 501 is displaced under the force of the meshing of the gear tooth profile with the tooth profile plate 503, causing the transmission gear 703 to rotate, thereby realizing the connection and blocking operation between the ball valve 7 interface and the second channel 121.

[0102] Furthermore, the pressure assembly 4 includes a rubber gasket 43 fixed between the valve body 1 and the valve cover 2 and an auxiliary pressure plate 42 attached to the rubber gasket 43. A tension spring 34 is movably connected between the auxiliary pressure plate 42 and the regulating button 212, and the tension spring 34 is movably sleeved on the side of the rotating rod 31. At the same time, a pressure relief hole 211 is opened on the valve cover 2, and the pressure relief hole 211 runs through the valve cover 2.

[0103] More specifically, the valve body 1 and the valve cover 2 are fastened by screws, and the edge of the rubber gasket 43 is clamped between the valve body 1 and the valve cover 2, so that the valve body 1 and the valve cover 2 are separated into two independent spaces. A lower space is formed between the valve body 1 and the rubber gasket 43, and an upper space is formed between the valve cover 2 and the rubber gasket 43. When natural gas enters the lower space, the rubber gasket 43 bulges upward, and after the natural gas in the lower space is output, the rubber gasket 43 returns to a horizontal state.

[0104] In addition, by rotating the regulating knob 212, when the regulating knob 212 rises, the tension spring 34 is released, and when the regulating knob 212 falls, the tension spring 34 is compressed, so as to adjust the pressure of natural gas transmission.

[0105] Furthermore, when the rubber gasket 43 expands, it squeezes the upper space, so that the gas in the upper space is discharged from the pressure relief hole 211 , and when the rubber gasket 43 recovers, the external gas is input into the upper space from the pressure relief hole 211 .

[0106] Furthermore, the pressure assembly 4 also includes a lifting member 41 connected to the rotating rod 31, and the lifting member 41 is composed of a lifting tube 411, a lower clamping plate 412 and an upper clamping plate 413. The lower clamping plate 412 and the upper clamping plate 413 are arranged in parallel at one end of the lifting tube 411, and are clamped on the axial line on the opposite side of the rubber gasket 43 and the auxiliary pressure plate 42. At the same time, the lifting tube 411 is movably connected to the rotating rod 31.

[0107] More specifically, the spacing between the lower clamping plate 412 and the upper clamping plate 413 matches the thickness of the rubber gasket 43 and the auxiliary pressure plate 42 after being stacked. The lower clamping plate 412 and the upper clamping plate 413 are clamped and fixed. When high-pressure natural gas is input into the valve body 1, the rubber gasket 43 expands, causing the lifting member 41 to slide up and down on the side of the rotating rod 31, thereby improving the stability of the deformation caused by the expansion or contraction of the rubber gasket 43.

[0108] Furthermore, the pressure assembly 4 also includes a guide member 44 movably connected to the valve body 1, and the guide member 44 is composed of a connecting plate 441 and two side plates 442. The side plates 442 are arranged on both sides of the connecting plate 441. At the same time, a stabilizing button 134 is arranged on the mounting groove 13, and the side plate 442 is rotatably connected to the stabilizing button 134.

[0109] A sealing plug 443 is fixed to one end of the connecting plate 441, and a sleeve groove 444 is opened at the other end. The sealing plug 443 is attached to one end of the first channel 111, and the sleeve groove 444 is movably attached to the side of the lifting tube 411. At the same time, a limiting ring 414 is provided at the bottom end of the lifting tube 411, and the limiting ring 414 is attached to the bottom of the connecting plate 441.

[0110] The guide member 44 is used to limit the amount of natural gas input and realizes the opening and closing operation of the first channel 111 through the lever principle. When the rubber gasket 43 expands to the limit, one end of the guide member 44 seals the interface of the first channel 111. When the rubber gasket 43 is released downward, one end of the guide member 44 opens the interface of the first channel.

[0111] More specifically, under the reciprocating operation of expansion and contraction of the rubber gasket 43, the lifting tube 411 is driven to move up and down, and the guide member 44 rotates on the side of the lifting tube 411 through the sleeve groove 444, so that under the force of the lever, the sealing plug 443 switches the opening and closing operations of the interface of the first channel 111.

[0112] Embodiment 3

[0113] See also Figure 2 - Figure 4 and Fig. 9 As shown, the dual-port closed natural gas intelligent regulating valve mentioned in this embodiment, on the basis of embodiment 2, also includes that the air guide member 6 includes a push rod 601 fixed at one end of the movable plate 501, and a piston 602 is fixed at one end of the push rod 601, and the piston 602 is attached to the inner wall of the air duct 114.

[0114] More specifically, when the push rod 601 drives the piston 602 to move forward in the air duct 114, an adsorption force is generated between the space behind the piston 602 and the air duct 114, thereby sucking the natural gas remaining in the valve body into the space behind the piston 602 and the air duct 114 through the micropores provided on the silicone gasket 133 for storage, thereby preventing natural gas leakage. When the push rod 601 drives the piston 602 to move backward in the opposite direction, the sealing block 113 returns to the first sealing port 112, and the adsorbed natural gas is re-transported back into the valve body through the micropores for supply.

[0115] It should be further explained that a rubber strip is sleeved on the side of the piston 602. When it moves forward and backward, the sealing block 113 is pushed and pulled by air pressure, so that when the sealing block 113 rises, the first channel 111 is blocked, and when the sealing block 113 descends, the first channel 111 is opened.

[0116] In addition, a rubber ring is disposed on the side of the sealing block 113 to increase the sealing performance between the sealing block 113 and the inner wall of the first sealing opening 112 , thereby preventing the gas in the air duct 114 from leaking into the valve body 1 .

[0117] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A dual-port closed natural gas intelligent regulating valve, comprising a valve body (1) and a valve cover (2), wherein a pressure component (4) for controlling flow input and output is installed between the valve body (1) and the valve cover (2), and characterized in that: An inlet (11) and an outlet (12) are respectively provided at both ends of the valve body (1); the inlet (11) and the outlet (12) are respectively provided with a first channel (111) and a second channel (121) which are in communication with the inside of the valve body (1); A first sealing opening (112) is provided in the first channel (111), and a sealing block (113) is movably sleeved in the first sealing opening (112), wherein the sealing block (113) switches on and off the first channel (111) by changing its height; The second channel (121) is provided with a second sealing port (122), and a ball valve (7) is rotatably connected in the second sealing port (122), and the ball valve (7) realizes opening and closing of the second channel (121) by rotating; The valve body (1) is provided with an air duct (114) and a stabilizing groove (124) which are interconnected, the air duct (114) being in communication with the first sealing opening (112), and the stabilizing groove (124) being in communication with the second sealing opening (122); The valve body (1) is provided with a mounting groove (13), a recovery channel (132) communicating with the air duct (114) and a stabilizing interface (131) communicating with the stabilizing slide groove (124) are provided in the mounting groove (13), and a silicone gasket (133) is provided in the recovery channel (132); The stabilizing slide groove (124) and the air duct (114) are respectively movably connected with a transmission member (5) for driving the ball valve (7) to rotate and an air guide member (6) for controlling the lifting and lowering of the sealing block (113); the transmission member (5) and the air guide member (6) are connected, and the displacement of the air guide member (6) is utilized to form a medium recovery space in the recovery channel (132); The valve cover (2) is provided with a regulating interface (21), and a regulating button (212) is internally threadedly connected to the regulating interface (21); The valve cover (2) is provided with a regulating assembly (3) connected to the pressure assembly (4), the regulating assembly (3) comprising a rotating rod (31), a synchronizing member (32) and a driving member (33), the rotating rod (31) being movably sleeved in the stabilizing interface (131), one end of the rotating rod (31) being rotated synchronously with the regulating knob (212) via the synchronizing member (32), and the other end of the rotating rod (31) being connected to the driving member (33) for driving the transmission member (5) and the air guide member (6) to generate displacement.

2. The dual-port closed natural gas intelligent regulating valve according to claim 1 is characterized in that: The synchronizing member (32) comprises a sleeve button (321) fixed to the top end of the rotating rod (31), a sliding groove (322) is provided on the sleeve button (321), a latch plate (323) is slidably connected in the sliding groove (322), and a latch opening (213) is provided in the regulating button (212), and one end of the latch plate (323) is plugged into the latch opening (213).

3. The dual-port closed natural gas intelligent regulating valve according to claim 2 is characterized in that: Restriction slide grooves (324) are provided on opposite sides of the sliding groove (322), and restriction slide buttons (325) are provided on opposite sides of the latch plate (323), and the restriction slide buttons (325) are slidably connected in the restriction slide grooves (324).

4. The dual-port closed natural gas intelligent regulating valve according to claim 1 is characterized in that: The driving member (33) comprises a sleeve rod (331), and a sleeve hole (311) is formed at the bottom end of the rotating rod (31), the sleeve rod (331) is movably sleeved in the sleeve hole (311), a connecting rod (332) is fixed at one end of the sleeve rod (331), and a side portion of the connecting rod (332) is movably sleeved in the stabilizing interface (131).

5. The dual-port closed natural gas intelligent regulating valve according to claim 4 is characterized in that: A driving gear (333) is fixed to one end of the connecting rod (332), and a transmission button (702) is fixed to the bottom of the ball valve (7), and a transmission gear (703) is fixed to one end of the transmission button (702), and the transmission member (5) includes a moving plate (501) movably connected to the stabilizing slide groove (124), a limiting groove (502) is provided in the moving plate (501), and the driving gear (333) and the transmission gear (703) are movably connected in the limiting groove (502); A rubber ring (123) is fixed in the interface connecting the stabilizing slide groove (124) and the second sealing opening (122), and the rubber ring (123) is fitted on the side of the transmission button (702).

6. The dual-port closed natural gas intelligent regulating valve according to claim 5 is characterized by: A toothed plate (503) is provided on one side of the limiting groove (502), and the sides of the transmission gear (703) and the driving gear (333) are meshed with the toothed plate (503).

7. The dual-port closed natural gas intelligent regulating valve according to claim 6 is characterized by: The pressure assembly (4) comprises a rubber gasket (43) fixed between the valve body (1) and the valve cover (2) and an auxiliary pressure plate (42) attached to the rubber gasket (43); a tension spring (34) is movably connected between the auxiliary pressure plate (42) and the regulating button (212); the tension spring (34) is movably sleeved on the side of the rotating rod (31); and a pressure relief hole (211) is provided on the valve cover (2), and the pressure relief hole (211) passes through the valve cover (2).

8. The dual-port closed natural gas intelligent regulating valve according to claim 7 is characterized in that: The pressure assembly (4) further comprises a lifting member (41) connected to the rotating rod (31), wherein the lifting member (41) comprises a lifting tube (411), a lower clamping plate (412) and an upper clamping plate (413), wherein the lower clamping plate (412) and the upper clamping plate (413) are arranged in parallel at one end of the lifting tube (411) and clamped on the axis of the rubber gasket (43) and the auxiliary pressure plate (42) on the opposite sides, and the lifting tube (411) is movably sleeved on the rotating rod (31).

9. The dual-port closed natural gas intelligent regulating valve according to claim 8, characterized in that: The pressure assembly (4) further comprises a flow guide (44) movably connected to the valve body (1), the flow guide (44) comprising a connecting plate (441) and two side plates (442), the side plates (442) being arranged opposite to each other on both sides of the connecting plate (441), and stabilizing buttons (134) being arranged opposite to each other in the mounting groove (13), the side plates (442) being rotatably connected to the stabilizing buttons (134); A sealing plug (443) is fixed to one end of the connecting plate (441), while a sleeve groove (444) is provided at the other end. The sealing plug (443) is fitted on one end of the first channel (111), while the sleeve groove (444) is movably sleeved on the side of the lifting tube (411). A limiting ring (414) is provided at the bottom end of the lifting tube (411), and the limiting ring (414) is fitted on the bottom of the connecting plate (441).

10. The dual-port closed natural gas intelligent regulating valve according to claim 1, characterized in that: The air guide member (6) comprises a push rod (601) fixed to one end of the movable plate (501), a piston (602) being fixed to one end of the push rod (601), and the piston (602) being fitted on the inner wall of the air duct (114).

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