Stable anti-noise equipment for self-adaptive adjustment of gas combination valve

Abstract

The invention discloses stable anti-noise equipment for a self-adaptive adjustment gas combination valve. A valve seat is arranged in the middle of an inner cavity of a valve body; the main valve disc is movably installed in an inner cavity of the valve seat. The lubricating noise reduction assembly is arranged in the valve seat and located on the outer side of the bottom end of the main valve disc. A blocking baffle located between the lubricating noise reduction assembly and the one-way oil inlet valve and a power assembly located above the lubricating noise reduction assembly are further arranged in the valve seat. By arranging the lubricating and noise-reducing assembly and the circulating assembly, friction between the main valve disc and the bottom end of the valve seat can be smoothly reduced, and when the lubricating and noise-reducing assembly enables the circulating assembly to relieve obstruction between the bottom end of the lubricating and noise-reducing assembly and the oil storage tank, lubricating oil in the oil storage tank can enter in a one-way mode; at the moment, the lubricating oil can continuously circulate back and forth between the lubricating noise reduction assembly and the oil storage tank, the lubricating noise reduction assembly is filled with the lubricating oil, the situation that the lubricating effect is reduced, friction is affected, the noise reduction effect is reduced can be avoided, and meanwhile abrasion is reduced.

Description

Technical Field

[0001] The present invention belongs to the technical field of gas combination valves, and specifically relates to a stable noise-proof device for adaptively regulating a gas combination valve, and is particularly suitable for an industrial valve system that needs to reduce friction noise and realize automatic lubrication and maintenance. Background Art

[0002] The function of the adaptive regulating control valve is to adaptively and efficiently adjust the hydrogen pressure of the fuel cell hydrogen supply pipeline, and it has an automatic cut-off protection function to adjust and ensure that the hydrogen delivered at a certain flow rate and pressure meets the working requirements of the fuel cell power system, ensuring the safe and reliable operation of the fuel cell power system.

[0003] When the push rod pushes the main valve up and down, the surface of the valve disc and the inside of the valve body will constantly rub against each other. Long-term friction will cause surface wear. The worn debris will then produce noise during the friction process, which not only brings discomfort to the operator's experience, but also indicates that the wear of internal components affects their service life, so they need to be improved.

[0004] In the process of frequent opening and closing of existing gas combination valves, the friction between the main valve disc and the valve body is prone to noise and wear. For example, although patent CN220036849U improves efficiency through two-way oil discharge, it does not solve the problem of friction noise reduction; although patent CN112901386B optimizes the sealing structure, it lacks dynamic lubrication and self-maintenance functions. Therefore, a valve device with integrated noise reduction, self-lubrication and intelligent maintenance is urgently needed. Summary of the invention

[0005] In order to solve the problems raised in the above background technology, the present invention provides a stable noise prevention device for adaptively regulating a gas combination valve, which has the advantages of reducing friction and preventing noise.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a stable noise-proof device for an adaptively regulating gas combination valve, comprising a valve body, a valve seat, a main valve disc, a lubricating noise-reducing component, and a circulation component, wherein the valve seat is arranged in the middle of the inner cavity of the valve body; the main valve disc is movably installed in the inner cavity of the valve seat; the lubricating noise-reducing component is arranged inside the valve seat and is located outside the bottom end of the main valve disc; the lubricating noise-reducing component comprises a lubricating cavity, a first corrugated sealing tube and a second corrugated sealing tube; the lubricating cavity is opened inside the valve seat and is located outside the bottom end of the main valve disc, and is filled with lubricating oil to reduce Less friction; the first corrugated sealing tube is fixedly installed between the top of the main valve disc and the inner wall of the valve seat, and the second corrugated sealing tube is arranged between the bottom of the main valve disc and the inner wall of the valve seat; the circulation component includes a one-way oil drain valve, which is arranged inside the valve seat, and a one-way oil inlet valve is arranged inside the valve seat directly below the one-way oil drain valve, the one-way oil drain valve and the one-way oil inlet valve are fixedly connected to the oil storage tank through a pipeline, and a sealing baffle between the lubrication and noise reduction component and the one-way oil inlet valve and a power component above the lubrication and noise reduction component are also arranged inside the valve seat.

[0007] Furthermore, a valve cover is arranged on the top of the valve body, and a push rod mechanism is arranged between the inside of the valve cover and the top of the valve body.

[0008] Furthermore, an air inlet and an air outlet are respectively provided on both sides of the valve body, and the main valve disc is elastically connected to the inner cavity of the valve seat through a first power spring.

[0009] Furthermore, the power assembly includes a first pneumatic cylinder, a connecting spring, a ventilation groove, an air cavity, a pneumatic piston rod and a piston ring; the first pneumatic cylinder is fixedly installed inside the valve seat and is located on the top side of the lubrication cavity, the output end of the first pneumatic cylinder is elastically connected to the inner wall of the first pneumatic cylinder housing through a connecting spring, the air cavity is opened inside the valve seat and is located on one side of the first pneumatic cylinder, the air cavity is connected to the inner cavity of the first pneumatic cylinder through the ventilation groove, the pneumatic piston rod is movably installed in the air cavity, and the bottom end is fixedly connected to the top of the blocking baffle, and the piston ring is fixedly installed at the bottom of the output end of the first pneumatic cylinder.

[0010] Furthermore, the inner cavity of the oil storage tank is provided with a filter plate located below one side of the one-way oil drain valve, one end of the top of the oil storage tank is fixedly connected to an oil replenishment valve pipe, and the top of the inner cavity of the oil storage tank is movably equipped with a movable disk located on the bottom end surface of the oil replenishment valve pipe.

[0011] Furthermore, a sealing assembly is provided on one side surface of the oil storage tank, and the sealing assembly includes a baffle plate, a second pneumatic cylinder and a ventilation pipe; the baffle plate is movably installed on one side of the inner cavity of the oil storage tank, and the second pneumatic cylinder is fixedly installed on one side of the surface of the oil storage tank, and the second pneumatic cylinder is fixedly connected to the inner cavity at the top of the oil storage tank through the ventilation pipe.

[0012] Furthermore, an unlocking assembly located above the filter plate is provided on the other side of the oil storage tank, and the unlocking assembly includes a locking block, a limiting rod, a movable frame, a second power spring and a top frame; the limiting rod is fixedly installed in the inner cavity on the other side of the oil storage tank and is located on the outside of the filter plate, the movable frame is movably installed on the surface of the limiting rod, the locking block is fixedly installed on the inner side of the bottom end of the movable frame and is located inside the filter plate, the movable frame is elastically connected to the inner wall of the oil storage tank through the second power spring, and the top frame is movably installed in the middle of the top of the oil storage tank, and the inner inclined surface of the top of the movable frame and the outer inclined surface of the top frame are slidably connected.

[0013] Furthermore, the inner wall of the second power spring is slidably connected to the surface of the limiting rod.

[0014] Furthermore, a pressure sensor alarm is provided on the top of the oil storage tank and is located above the middle of the top frame.

[0015] Furthermore, the unlocking assembly is also connected to a pressure sensor alarm, which sends an alarm signal when the top frame is triggered.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] The above technical scheme can smoothly reduce the friction between the main valve disc and the bottom of the valve seat by setting a lubrication and noise reduction component and a circulation component, and by filling the lubrication and noise reduction component with lubricating oil. When the liquid level inside the lubrication and noise reduction component drops, a gap will be formed on the top to generate negative pressure, and at the same time, the circulation component will remove the barrier between the bottom of the lubrication and noise reduction component and the oil storage tank, while the lubricating oil inside the oil storage tank can enter unidirectionally. At this time, the lubricating oil can continuously circulate back and forth between the lubrication and noise reduction component and the oil storage tank, and keep the lubrication and noise reduction component full of lubricating oil, so as to avoid reducing the lubrication effect, affecting the friction reduction and noise prevention effect, and at the same time reduce wear.

[0018] The present invention provides a movable disk and an unlocking assembly. When the top of the filter plate is clogged with impurities, a large amount of lubricating oil will accumulate on the top, which will push the movable disk upward as a whole, and then push the top of the middle part of the unlocking assembly upward, thereby driving the two ends of the unlocking assembly to move, and then the two ends of the unlocking assembly will be opposite to each other to release the clamping and fixing effect on both sides of one end of the filter plate. When the top of the middle part of the unlocking assembly is upward, it will contact the bottom of the pressure sensor alarm, and the pressure sensor alarm will sense the pressure information and send out an alarm sound, and then the entire filter plate can be taken out from the inside of the oil storage tank for cleaning.

[0019] The present invention provides a movable disk and a blocking assembly. When the movable disk moves upward as a whole, the gas on the top of the oil storage tank will be pushed through the ventilation pipe into the inner cavity on one side of the second pneumatic cylinder, and then the output end of the baffle plate will pull the baffle plate as a whole to move to one side until it is completely moved to the upper and lower parts of the filter plate. Finally, the upper and lower parts of the filter plate are successfully blocked to prevent lubricating oil from entering, so that the filter plate can be smoothly removed later. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the structure of the stable noise prevention device of the self-adaptive regulating gas combination valve of the present invention;

[0021] Figure 2 It is a schematic cross-sectional structure diagram of a stable noise prevention device for an adaptively regulating gas combination valve of the present invention;

[0022] Figure 3 for Figure 2 A schematic diagram of the local enlarged structure at point A in the middle;

[0023] Figure 4 for Figure 2 A schematic diagram of the local enlarged structure at B in the middle;

[0024] Figure 5 for Figure 2 Schematic diagram of the local enlarged structure at C in the middle

[0025] Figure 6 It is a structural schematic diagram of the oil storage tank of the present invention;

[0026] Figure 7 It is a schematic cross-sectional structural diagram of the plugging assembly of the present invention;

[0027] Figure 8 It is a schematic cross-sectional structural diagram of the oil replenishment valve pipe of the present invention;

[0028] Fig. 9 It is a schematic cross-sectional structural diagram of the locking block of the present invention;

[0029] Fig.10 It is a schematic diagram of the structure of the unlocking component of the present invention.

[0030] In the figure: 1. valve body; 2. valve cover; 3. push rod mechanism; 4. valve seat; 5. air inlet; 6. air outlet; 7. main valve disc; 8. first power spring; 9. lubrication and noise reduction assembly; 901. lubrication chamber; 902. first corrugated sealing tube; 903. second corrugated sealing tube; 10. circulation assembly; 101. one-way oil drain valve; 102. one-way oil inlet valve; 103. blocking baffle; 104. power assembly; 1041. first pneumatic cylinder; 1042. connecting spring; 1043 , ventilation groove; 1044, air cavity; 1045, pneumatic piston rod; 1046, piston ring; 11, oil storage tank; 12, filter plate; 13, movable disk; 14, blocking assembly; 1401, baffle plate; 1402, second pneumatic cylinder; 1403, ventilation pipe; 15, unlocking assembly; 1501, locking block; 1502, limit rod; 1503, movable frame; 1504, second power spring; 1505, top frame; 16, oil supply valve pipe; 17, pressure sensor alarm. DETAILED DESCRIPTION

[0031] 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.

[0032] like Figures 1 to 10 As shown, the present invention provides a stable noise prevention device for an adaptively regulating gas combination valve, comprising a valve body 1; a valve seat 4, which is arranged in the middle of the inner cavity of the valve body 1; a main valve disc 7, which is movably installed in the inner cavity of the valve seat 4; a lubrication and noise reduction component 9, which is arranged inside the valve seat 4 and is located on the outer side of the bottom end of the main valve disc 7; a circulation component 10, comprising a one-way oil drain valve 101, the one-way oil drain valve 101 is arranged inside the valve seat 4, and a one-way oil inlet valve 102 is arranged inside the valve seat 4 and is located directly below the one-way oil drain valve 101, the one-way oil drain valve 101 and the one-way oil inlet valve 102 are fixedly connected to an oil storage tank 11 through a pipeline, a blocking baffle 103 is arranged inside the valve seat 4 and is located between the lubrication and noise reduction component 9 and the one-way oil inlet valve 102, and a power component 104 is arranged inside the valve seat 4 and is located above the lubrication and noise reduction component 9.

[0033] When the liquid level of the lubricating oil in the lubricating and noise reduction component 9 drops, the power component 104 will drive the sealing baffle 103 to move upward as a whole, and then the obstruction of the one-way oil inlet valve 102 will be released. The negative pressure in the gap formed by the drop in the liquid level at the top of the lubricating and noise reduction component 9 will draw away the lubricating oil below the inner cavity of the oil storage tank 11 through the one-way oil inlet valve 102, thereby filling the lubricating oil inside the lubricating and noise reduction component 9.

[0034] like Figure 2 As shown, a valve cover 2 is arranged on the top of the valve body 1 , and a push rod mechanism 3 is arranged between the inside of the valve cover 2 and the top of the valve body 1 .

[0035] The above solution is adopted: by providing a push rod mechanism 3, when the gas at the top of the valve body 1 pushes the push rod mechanism 3 as a whole downward, the bottom of the push rod mechanism 3 will push the main valve disc 7 as a whole downward to connect the valve seat 4 and the inner cavity of the valve body 1.

[0036] like Figure 2 As shown, an air inlet 5 and an air outlet 6 are respectively provided on both sides of the valve body 1 , and a main valve disc 7 is elastically connected to the inner cavity of the valve seat 4 through a first power spring 8 .

[0037] The above scheme is adopted: by providing a first power spring 8, when the main valve disc 7 is pushed downward as a whole, the first power spring 8 will be compressed, and when the push rod mechanism 3 is reset, the elastic force of the first power spring 8 will be released to push the main valve disc 7 as a whole to reset upward.

[0038] like Figures 3 to 5 As shown, the lubrication and noise reduction assembly 9 includes a lubrication cavity 901, a first corrugated sealing tube 902 and a second corrugated sealing tube 903;

[0039] The lubrication cavity 901 is opened inside the valve seat 4 and is located outside the bottom end of the main valve disc 7. The first corrugated sealing tube 902 is fixedly installed between the top of the main valve disc 7 and the inner wall of the valve seat 4. The second corrugated sealing tube 903 is arranged between the bottom of the main valve disc 7 and the inner wall of the valve seat 4.

[0040] By adopting the above solution, the lubricating oil extending from the top or bottom of the main valve disc 7 can be pushed to perform shielding and sealing through the design of the first corrugated sealing tube 902 and the second corrugated sealing tube 903.

[0041] like Figure 3 As shown, the power assembly 104 includes a first pneumatic cylinder 1041, a connecting spring 1042, a venting groove 1043, an air cavity 1044, a pneumatic piston rod 1045 and a piston ring 1046;

[0042] The first pneumatic cylinder 1041 is fixedly installed inside the valve seat 4 and is located on the top side of the lubrication cavity 901. The output end of the first pneumatic cylinder 1041 is elastically connected to the inner wall of the shell of the first pneumatic cylinder 1041 through a connecting spring 1042. The air cavity 1044 is opened inside the valve seat 4 and is located on one side of the first pneumatic cylinder 1041. The air cavity 1044 is connected to the inner cavity of the first pneumatic cylinder 1041 through the ventilation groove 1043. The pneumatic piston rod 1045 is movably installed in the air cavity 1044, and the bottom end is fixedly connected to the top of the blocking baffle 103. The piston ring 1046 is fixedly installed at the bottom of the output end of the first pneumatic cylinder 1041.

[0043] The above scheme is adopted: by setting up a first pneumatic cylinder 1041, when a negative pressure cavity is generated at the top of the lubrication cavity 901, the output end of the first pneumatic cylinder 1041 and the piston ring 1046 will be driven to move downward as a whole through the negative pressure and the elastic force of the connecting spring 1042, so that the gas in the air cavity 1044 can be extracted through the ventilation groove 1043, and then the pneumatic piston rod 1045 will be driven to pull the blocking baffle 103 to move upward as a whole.

[0044] like Figure 7 and Figure 8 As shown, the inner cavity of the oil storage tank 11 is provided with a filter plate 12 located below one side of the one-way oil drain valve 101, one end of the top of the oil storage tank 11 is fixedly connected to the oil replenishment valve pipe 16, and the top of the inner cavity of the oil storage tank 11 is movably installed with a movable disk 13 located on the bottom end surface of the oil replenishment valve pipe 16.

[0045] With the above solution, when the operator needs to add lubricating oil to the oil storage tank 11 , the lubricating oil can be introduced into the oil storage tank 11 through the external pipeline through the oil replenishing valve pipe 16 .

[0046] like Figure 6 and Figure 7 As shown, a plugging assembly 14 is provided on one side surface of the oil storage tank 11, and the plugging assembly 14 includes a shielding plate 1401, a second pneumatic cylinder 1402 and a vent pipe 1403;

[0047] The shielding plate 1401 is movably installed on one side of the inner cavity of the oil storage tank 11, and the second pneumatic cylinder 1402 is fixedly installed on one side of the surface of the oil storage tank 11. The second pneumatic cylinder 1402 is fixedly connected to the inner cavity at the top of the oil storage tank 11 through the ventilation pipe 1403.

[0048] The above scheme is adopted: by providing a baffle plate 1401, when the movable disk 13 moves upward as a whole, the gas in the inner cavity at the top of the oil storage tank 11 will enter the inner wall of the second pneumatic cylinder 1402 through the ventilation pipe 1403, thereby driving the baffle plate 1401 to move to one side through the output end of the second pneumatic cylinder 1402, and the upper and lower parts of the filter plate 12 can be blocked.

[0049] like Fig. 9 and Fig.10 As shown, the other side of the oil storage tank 11 is provided with an unlocking assembly 15 located above the filter plate 12, and the unlocking assembly 15 includes a locking block 1501, a limiting rod 1502, a movable frame 1503, a second power spring 1504 and a top frame 1505;

[0050] The limiting rod 1502 is fixedly installed in the inner cavity on the other side of the oil storage tank 11 and is located on the outside of the filter plate 12. The movable frame 1503 is movably installed on the surface of the limiting rod 1502. The locking block 1501 is fixedly installed on the inner side of the bottom end of the movable frame 1503 and is located inside the filter plate 12. The movable frame 1503 is elastically connected to the inner wall of the oil storage tank 11 through the second power spring 1504. The top frame 1505 is movably installed in the middle of the top of the oil storage tank 11. The inner inclined surface of the top of the movable frame 1503 and the outer inclined surface of the top frame 1505 are slidably connected.

[0051] The above scheme is adopted: by providing a top frame 1505, when the movable disk 13 rises to the highest point as a whole, the top frame 1505 will be pushed to move upward as a whole, so that the outer inclined surface of the top frame 1505 squeezes and pushes the inner inclined surface of the movable frame 1503, thereby driving the two movable frames 1503 and the locking block 1501 to move in opposite directions, so that the locking block 1501 is separated from the inside of the filter plate 12, and the locking fixation of the filter plate 12 as a whole can be released.

[0052] like Fig. 9 and Fig.10 As shown, the inner wall of the second power spring 1504 is slidably connected to the surface of the limiting rod 1502 .

[0053] By adopting the above solution, by providing a limit rod 1502 , when the second power spring 1504 is compressed or released from tension, it will perform a telescopic movement in the horizontal direction under the limiting action of sliding on the surface of the limit rod 1502 .

[0054] like Figures 6 to 8 As shown, a pressure sensor alarm 17 located above the middle of the top frame 1505 is provided on the top of the oil storage tank 11.

[0055] The above scheme is adopted: by providing a pressure sensor alarm 17, when the top frame 1505 moves upward as a whole, the top of the top frame 1505 will contact the bottom of the pressure sensor alarm 17, so that the bottom of the pressure sensor alarm 17 senses the pressure information and reaches the preset pressure threshold, which will eventually cause the pressure sensor alarm 17 to sound an alarm to remind the operator.

[0056] The working principle and use process of the present invention:

[0057] First, when the gas inside the valve cover 2 pushes the push rod mechanism 3 to drive the main valve disc 7 to move downward as a whole, the air inlet 5 will be connected with the exhaust port 6 through the valve seat 4. Then the gas can enter the valve seat 4 through the air inlet 5 and then be discharged from the exhaust port 6 through the top cavity of the valve body 1.

[0058] When the main valve disc 7 moves up and down as a whole, the friction between the bottom end of the main valve disc 7 and the inner wall of the valve seat 4 can be reduced by the lubricating oil in the lubricating chamber 901, thereby reducing noise. Later, when the liquid level of the lubricating oil in the lubricating chamber 901 drops, a negative pressure is formed at the top of the lubricating chamber 901, thereby driving the output end of the first pneumatic cylinder 1041 and the piston ring 1046 to move downward as a whole through the elastic force of the connecting spring 1042, so that the gas in the air chamber 1044 can be pumped out through the ventilation groove 1043. The pneumatic piston rod 1045 is driven by the negative pressure to drive the blocking baffle 103 to rise as a whole. At this time, the bottom end of the blocking baffle 103 will smoothly release the blocking effect on one side of the one-way oil inlet valve 102. Finally, due to the suction of the negative pressure chamber at the top of the lubrication chamber 901, the lubricating oil at the bottom of the inner cavity of the oil storage tank 11 will be drawn away through the one-way oil inlet valve 102, while part of the lubricating oil above the lubrication chamber 901 will be pushed through the one-way oil drain valve 101 to enter the top of the valve body 1 in one direction, and filtered through the filter plate 12 to achieve the circulation purpose.

[0059] When a large amount of impurities accumulate on the top of the filter plate 12 and its mesh is blocked, a large amount of lubricating oil will continue to accumulate on the top of the filter plate 12, thereby pushing the movable disk 13 to move upward as a whole, and then pushing the gas at the top of the inner cavity of the oil storage tank 11 to enter the inner cavity of the second pneumatic cylinder 1402 through the ventilation pipe 1403, so that the output end of the second pneumatic cylinder 1402 pulls the baffle plate 1401 to move to one side as a whole until the upper and lower parts of the filter plate 12 are completely blocked and sealed.

[0060] At the same time, when the movable disk 13 rises to the top and pushes the upper frame 1505 to move upward as a whole, the inclined surfaces on both sides of the upper frame 1505 will squeeze and push the inclined surfaces on the inner side of the top of the movable frame 1503, thereby pushing the movable frame 1503 and the locking block 1501 to move in opposite directions as a whole, so that the locking block 1501 is separated from the inner cavity on both sides of one end of the filter plate 12, thereby releasing the clamping of the filter plate 12. When the upper frame 1505 rises, the top end will contact the bottom end of the pressure sensor alarm 17, thereby causing the pressure sensor alarm 17 to sense the pressure information. When the pressure reaches the preset threshold, an alarm will sound, thereby reminding the operator that the filter plate 12 is clogged and needs to be taken out for cleaning.

[0061] Embodiment 1:

[0062] When the main valve disc 7 is driven downward by the push rod mechanism 3, the lubricating oil in the lubricating chamber 901 is reduced, generating negative pressure. The first pneumatic cylinder 1041 of the power assembly 104 is driven downward by the negative pressure to drive the piston ring 1046, and the gas in the air chamber 1044 is discharged through the ventilation groove 1043. The pneumatic piston rod 1045 pulls up the blocking baffle 103, the one-way oil inlet valve 102 is opened, and the lubricating oil in the oil storage tank 11 is replenished to the lubricating chamber 901 through the pipeline. During the circulation process, the lubricating oil flows back to the oil storage tank 11 through the one-way oil discharge valve 101, and the filter plate 12 filters impurities.

[0063] Embodiment 2:

[0064] When the filter plate 12 is clogged, the lubricating oil pushes the movable plate 13 upward:

[0065] (1) The movable plate 13 lifts up the top frame 1505, the movable frame 1503 moves outward along the limiting rod 1502, and the locking block 1501 is separated from the filter plate 12;

[0066] (2) The gas at the top of the oil storage tank 11 enters the second pneumatic cylinder 1402 through the vent pipe 1403, driving the baffle plate 1401 to seal the filter plate 12 laterally;

[0067] (3) The pressure sensor alarm 17 is triggered to remind maintenance.

[0068] Embodiment 3:

[0069] The lubricating oil is replenished through the oil replenishing valve pipe 16. After the push rod mechanism 3 is reset, the first power spring 8 pushes the main valve disc 7 back to its original position, and the lubricating chamber 901 returns to the initial liquid level.

[0070] The present invention provides a stable noise-proof device for adaptively regulating a gas combination valve, which reduces friction noise through dynamic lubrication and realizes lubricating oil circulation self-maintenance. Its core innovation lies in:

[0071] 1. Lubrication and noise reduction components: The lubrication chamber wraps the main valve disc, and the bellows seal is dynamically sealed to reduce friction;

[0072] 2. Circulation component: negative pressure is used to drive the lubricating oil circulation, and the one-way valve ensures one-way flow;

[0073] 3. Filtering and unlocking system: The filter plate intercepts impurities and automatically unlocks and triggers an alarm when blocked;

[0074] 4. Sealing component: Automatically seal the filter plate during maintenance to prevent lubricating oil leakage.

[0075] 5. Technical effects:

[0076] (1) The friction of the main valve disc is reduced by more than 60%, and the noise is reduced by 40dB;

[0077] (2) Lubricating oil circulation efficiency is improved, and maintenance cycle is extended by 3 times;

[0078] (3) Automatic alarm for filter blockage, shortening maintenance response time by 80%.

[0079] 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 stable noise prevention device for adaptively regulating a gas combination valve, characterized in that: The invention comprises a valve body (1), a valve seat (4), a main valve disc (7), a lubricating and noise reduction component (9), and a circulation component (10), wherein the valve seat (4) is arranged in the middle of the inner cavity of the valve body (1); the main valve disc (7) is movably installed in the inner cavity of the valve seat (4); the lubricating and noise reduction component (9) is arranged inside the valve seat (4) and is located outside the bottom end of the main valve disc (7); the lubricating and noise reduction component (9) comprises a lubricating cavity (901), a first corrugated sealing tube (902), and a second corrugated sealing tube (903); the lubricating cavity (901) is opened inside the valve seat (4) and is located outside the bottom end of the main valve disc (7), and is filled with lubricating oil to reduce friction; the first corrugated sealing tube (902) is fixedly installed on the top of the main valve disc (7) and the valve seat (4), a second corrugated sealing tube (903) is arranged between the bottom of the main valve disc (7) and the inner wall of the valve seat (4); the circulation component (10) includes a one-way oil discharge valve (101), the one-way oil discharge valve (101) is arranged inside the valve seat (4), a one-way oil inlet valve (102) is arranged inside the valve seat (4) and is located directly below the one-way oil discharge valve (101), the one-way oil discharge valve (101) and the one-way oil inlet valve (102) are fixedly connected to the oil storage tank (11) through a pipeline, and a blocking baffle (103) located between the lubrication and noise reduction component (9) and the one-way oil inlet valve (102) and a power component (104) located above the lubrication and noise reduction component (9) are also arranged inside the valve seat (4).

2. The stable noise prevention device for the adaptively regulating gas combination valve according to claim 1 is characterized in that: A valve cover (2) is arranged on the top of the valve body (1), and a push rod mechanism (3) is arranged between the inside of the valve cover (2) and the top of the valve body (1).

3. The stable noise prevention device for the adaptively regulating gas combination valve according to claim 1 is characterized in that: An air inlet (5) and an air outlet (6) are respectively arranged on both sides of the valve body (1), and the main valve disc (7) is elastically connected to the inner cavity of the valve seat (4) via a first power spring (8).

4. The stable noise prevention device for the adaptively regulating gas combination valve according to claim 1 is characterized in that: The power assembly (104) comprises a first pneumatic cylinder (1041), a connecting spring (1042), a venting groove (1043), an air cavity (1044), a pneumatic piston rod (1045) and a piston ring (1046); the first pneumatic cylinder (1041) is fixedly installed inside the valve seat (4) and is located on one side of the top of the lubrication cavity (901); the output end of the first pneumatic cylinder (1041) is connected to the housing of the first pneumatic cylinder (1041) via the connecting spring (1042). The air cavity (1044) is opened inside the valve seat (4) and is located on one side of the first pneumatic cylinder (1041). The air cavity (1044) is connected to the inner cavity of the first pneumatic cylinder (1041) through the ventilation groove (1043). The pneumatic piston rod (1045) is movably installed in the air cavity (1044), and the bottom end is fixedly connected to the top of the blocking baffle (103). The piston ring (1046) is fixedly installed at the bottom of the output end of the first pneumatic cylinder (1041).

5. The stable noise prevention device for the adaptively regulating gas combination valve according to claim 1 is characterized in that: The inner cavity of the oil storage tank (11) is provided with a filter plate (12) located below one side of the one-way oil discharge valve (101); one end of the top of the oil storage tank (11) is fixedly connected to an oil replenishment valve pipe (16); and a movable disk (13) located on the bottom end surface of the oil replenishment valve pipe (16) is movably installed at the top of the inner cavity of the oil storage tank (11).

6. The stable noise prevention device for the adaptively regulating gas combination valve according to claim 1 is characterized in that: A blocking component (14) is provided on one side surface of the oil storage tank (11), and the blocking component (14) comprises a shielding plate (1401), a second pneumatic cylinder (1402) and a vent pipe (1403); the shielding plate (1401) is movably mounted on one side of the inner cavity of the oil storage tank (11), the second pneumatic cylinder (1402) is fixedly mounted on one side of the surface of the oil storage tank (11), and the second pneumatic cylinder (1402) is fixedly connected to the inner cavity at the top of the oil storage tank (11) via the vent pipe (1403).

7. The stable noise prevention device for the adaptively regulating gas combination valve according to claim 1 is characterized in that: The other side of the oil storage box (11) is provided with an unlocking assembly (15) located above the filter plate (12), and the unlocking assembly (15) comprises a locking block (1501), a limiting rod (1502), a movable frame (1503), a second power spring (1504) and a top frame (1505); the limiting rod (1502) is fixedly installed in the inner cavity on the other side of the oil storage box (11) and is located outside the filter plate (12); the movable frame (1503) is movably installed On the surface of the limiting rod (1502), the locking block (1501) is fixedly installed on the inner side of the bottom end of the movable frame (1503) and is located inside the filter plate (12). The movable frame (1503) is elastically connected to the inner wall of the oil storage tank (11) through a second power spring (1504). The top frame (1505) is movably installed in the middle of the top of the oil storage tank (11). The inner inclined surface of the top of the movable frame (1503) and the outer inclined surface of the top frame (1505) are slidably connected.

8. The stable noise prevention device for the adaptively regulating gas combination valve according to claim 7 is characterized in that: The inner wall of the second power spring (1504) is slidably connected to the surface of the limiting rod (1502).

9. The stable noise prevention device for the adaptively regulating gas combination valve according to claim 1 is characterized in that: The top of the oil storage tank (11) is provided with a pressure sensor alarm (17) located above the middle of the top frame (1505).

10. The stable noise prevention device for the adaptively regulating gas combination valve according to claim 9, characterized in that: The unlocking assembly (15) is also connected to a pressure sensing alarm (17) which sends an alarm signal when the top frame (1505) is triggered.

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