Self-pressure-relief noise elimination check valve and process thereof

Abstract

The invention provides a self-pressure-relief noise elimination check valve and a process thereof, and relates to the technical field of noise elimination check valves. Threaded grooves are evenly formed in the edge of the upper end of the fixing valve body. Liquid in a control pipeline can be temporarily sealed through downward movement of the sealing plate, then the check valve clack can seal circulating liquid to prevent backflow, the main function of the check valve clack is to prevent the fluid from flowing back so as to protect equipment, and when the liquid with overhigh pressure makes contact with the check valve clack, the check valve clack can close the liquid in the control pipeline temporarily. The fixed pump body is used for extracting liquid with overhigh pressure by connecting a liquid extraction pipe; the problems that a check valve clack needs to be installed to seal circulating liquid to prevent backflow due to the fact that liquid in a pipeline needs to stop circulating, the pressure is too high due to the fact that the stopped circulating liquid makes contact with the check valve clack, and if the liquid at the position cannot be extracted for pressure relief, the check valve clack cannot be installed are solved. And liquid under high pressure is in contact with the check valve clack all the time, so that damage can be caused.

Description

Technical Field

[0001] The invention relates to the technical field of silencer check valves, and in particular to a self-pressure relief silencer check valve and a process thereof. Background Art

[0002] With the continuous acceleration of the industrialization process, the application of fluid conveying systems is becoming more and more extensive, especially in the fields of petroleum, chemical industry, environmental protection, etc. Check valves are important fluid control equipment, and their performance directly affects the safety and stability of the entire system. However, traditional check valves often have problems such as liquid hammer, noise and leakage during use, which seriously affect the operating efficiency and service life of the system. Therefore, the research on new check valves is particularly important. The self-pressure relief and silencer check valve is a new type of check valve design. It adopts a method that combines self-pressure relief technology with silencer design to effectively reduce the noise generated by fluid flow and realize self-regulation of pressure when necessary. The introduction of this technology not only improves the working efficiency of the check valve, but also solves many problems existing in traditional check valves to a certain extent. It has significant application prospects. The basic concept of the self-pressure relief and silencer check valve is based on the traditional check valve, combined with self-pressure relief and silencer technology, to reduce the noise generated during fluid flow, while ensuring that the fluid can be quickly depressurized when it flows back to avoid equipment damage and system failure.

[0003] During the use of the check valve, since the liquid in the pipeline needs to stop flowing, a check valve disc needs to be installed to seal the circulating liquid and prevent backflow. The contact between the stopped liquid and the check valve disc will cause excessive pressure. If the liquid here cannot be extracted to relieve the pressure, the high-pressure liquid will continue to contact the check valve disc and may be damaged. Summary of the invention

[0004] The disclosed embodiment relates to a self-pressure-relieving and silencer check valve and its process. The downward movement of the closing plate will temporarily close the liquid in the control pipeline, and then the check valve flap will close the circulating liquid to prevent backflow. The main function of the check valve flap is to prevent the fluid from flowing back, thereby protecting the equipment. When the liquid with excessive pressure contacts the check valve flap, the fixed pump body is connected to the liquid extraction pipe to extract the liquid with excessive pressure, thereby self-relieving the pressure of the liquid at the check valve flap, and at the same time protecting the check valve flap, so that the check valve flap will not be damaged. The check valve flap effectively controls the flow of liquid, helps to prevent malfunctions and accidents, enhances the safety of the system, and can reduce the wear on pipelines and related equipment by reducing pressure fluctuations and backflow of fluid, thereby extending their service life.

[0005] In a first aspect of the present disclosure, a self-pressure relief silencer check valve and a process thereof are provided, which specifically include: a fixed valve body; a threaded groove is evenly provided at the edge of the upper end of the fixed valve body; a control pipe is fixedly installed in the inner cavity of the fixed valve body, and a through-hole is provided at the upper end of the control pipe; a bearing sealing cover is fixedly installed at the upper end of the left end of the control pipe, and a through-rod hole is provided in the middle of the bearing sealing cover; a fixing groove is provided at the left end of the bearing sealing cover;

[0006] A fixed horizontal plate is fixedly installed at the right end of the inner cavity of the control pipe, and a through circular hole is opened in the middle of the fixed horizontal plate; through fixed guide holes are opened at both ends of the fixed horizontal plate; a through spring return rod is inserted in the circular hole of the fixed horizontal plate, and a stopper is fixedly installed at the right end of the spring return rod; a check valve disc is fixedly installed at the left end of the spring return rod, and fixed guide rods symmetrical to each other are fixedly installed on the side wall of the check valve disc;

[0007] A fixed top cover is installed at the mouth of the upper end of the fixed valve body, and a penetrating fixing hole is opened at the left end of the fixed top cover; a rectangular groove is opened at the right end of the fixed top cover, and a penetrating pipe hole is opened in the rectangular groove of the fixed top cover; penetrating bolts are evenly inserted at the edge of the fixed top cover, a fixed liquid storage box body is fixedly installed at the rectangular groove of the fixed top cover, and a penetrating connecting liquid extraction pipe is fixedly installed at the bottom of the fixed liquid storage box body, a fixed pump body is fixedly installed at the rear end of the fixed liquid storage box body, and a connecting discharge pipe is fixedly connected to the rear end of the fixed pump body.

[0008] In at least some embodiments, an anti-slip stabilizing disk is fixedly installed at the lower end of the fixed valve body, and penetrating connecting holes are evenly opened on the anti-slip stabilizing disk, and a penetrating liquid inlet pipe is fixedly inserted at the left end of the fixed valve body.

[0009] In at least some embodiments, a discharge pipe is fixedly inserted into the right end of the fixed valve body, and a connecting flange is fixedly installed on the side wall of the discharge pipe.

[0010] In at least some embodiments, a fixed anti-slip groove is provided at the left end of the bottom of the inner cavity of the control pipe, and a buffer extension tube is fixedly installed at the upper end of the left end of the control pipe.

[0011] In at least some embodiments, two ends of the inner side wall of the buffer extension tube are respectively provided with mutually parallel guide vertical grooves, and a buffer liquid inlet groove is provided at the right end of the inner cavity of the control pipe.

[0012] In at least some embodiments, an electric push rod is fixedly mounted at the fixing groove at the left end of the bearing sealing cover, and a connecting plate is fixedly mounted at the upper end of the electric push rod.

[0013] In at least some embodiments, a vertically downward connecting rod is fixedly mounted on the right end of the bottom of the connecting plate, and a positioning ring is fixedly mounted on the connecting rod.

[0014] In at least some embodiments, a closing plate is fixedly mounted at the lower end of the connecting vertical rod, a fixed anti-dropping block is fixedly mounted at the lower end of the closing plate, and mutually symmetrical guide vertical plates are fixedly mounted on both sides of the closing plate.

[0015] The invention discloses a use process of a self-pressure relief and silencer check valve, comprising the following steps: firstly, an electric push rod is used to move a connecting plate upward, thereby driving a closing plate to move upward, and at this time, liquid will flow from a liquid inlet pipe into a control pipe; then, the liquid in the control pipe will push the check valve flap to the right, causing the check valve flap to move to the right, and at this time, the liquid will flow from the control pipe to the right, and then be transported from the discharge pipe to the right end connecting pipe for transportation; when the liquid in the control pipe stops flowing, the closing plate is first moved downward to seal the control pipe, and the check valve flap will also reset without being impacted by the liquid, thereby blocking the liquid in the control pipe; then, a fixed pump body is started, and a connecting liquid extraction pipe is used to extract the liquid in the control pipe into a fixed liquid storage box, and when there is too much liquid in the fixed liquid storage box, the liquid is transported outwards through the connecting discharge pipe, thereby preventing the liquid in the control pipe from having too much liquid and too high pressure.

[0016] The present invention provides a self-pressure relief and silencer check valve and a process thereof, which have the following beneficial effects:

[0017] 1. The downward movement of the closing plate will temporarily close the liquid in the control pipe, and then the check valve flap will close the circulating liquid to prevent backflow. The main function of the check valve flap is to prevent the fluid from flowing back and thus protect the equipment. When the liquid with excessive pressure contacts the check valve flap, the fixed pump body is connected to the pumping pipe to extract the liquid with excessive pressure, thereby self-depressurizing the liquid at the check valve flap and protecting the check valve flap at the same time, so that the check valve flap will not be damaged. The check valve flap effectively controls the flow of liquid, helps prevent malfunctions and accidents, and enhances the safety of the system. By reducing pressure fluctuations and backflow of fluid, it can reduce wear on pipelines and related equipment, thereby extending their service life.

[0018] 2. The check valve disc is slidably installed in the buffer inlet tank. The edge of the check valve disc is tightly attached to the inner left side of the buffer inlet tank. The check valve disc blocks and seals the liquid flowing in the control pipe. When the closing plate moves upward to open the control pipe, the liquid in the control pipe will flow to the right and squeeze the check valve disc to the right. At this time, the spring on the spring return rod is squeezed and slowly moves to the right. At this time, the liquid will flow silently during the transportation process, thereby achieving the purpose of silencing during liquid circulation. At the same time, the check valve disc moves to the right, and then the liquid in the control pipe will flow to the right from the edge of the check valve disc. When the circulation of liquid in the control pipe needs to be stopped, first move the closing plate downward to temporarily stop the circulation of liquid in the control pipe, so that the check valve disc will not be impacted by the liquid. At this time, the spring on the spring return rod will push the check valve disc to the left, and the liquid circulating in the control pipe will be closed by the check valve disc. The edge of the check valve disc is tightly attached to the inner left side of the buffer inlet tank. The liquid in the control pipe is blocked by the check valve disc when flowing to the left, and the liquid cannot flow to the left, which effectively controls the direction of liquid circulation, helps to prevent malfunctions and accidents, and enhances the safety of the system.

[0019] 3. Use an electric push rod to push the connecting plate upwards, so that the connecting plate drives the connecting vertical rod and the closing plate to move up. When the closing plate enters the inner cavity of the buffer extension tube, the liquid in the control pipe will flow to the right. Use an electric push rod to control the closing plate to move downward. When the positioning ring is in contact with the side wall of the bearing sealing cover, the closing plate will stop moving downward, and the fixed anti-detachment block will be inserted into the fixed anti-detachment groove. In this way, the closing plate will seal the liquid in the control pipe. In this way, the closing plate will first seal the liquid flowing in the control pipe, thereby reducing the pressure of the liquid on the check valve disc. The liquid flowing in the control pipe is doubly closed and restricted, and the liquid in the control pipe cannot flow.

[0020] 4. The lower end of the connecting liquid extraction tube is inserted into the inner cavity of the control pipe, and the connecting liquid extraction tube is located between the closing plate and the check valve disc. When the liquid pressure in the control pipe is too high, the fixed pump body is started and the connecting liquid extraction tube is used to extract the liquid in the control pipe into the fixed liquid storage tank. When there is too much liquid in the fixed liquid storage tank, it is transported outward through the connecting discharge tube into the container placed at the outer end. In this way, the liquid in the control pipe is reduced to make the pressure too low, avoiding the liquid pressure in the control pipe being too high, and also reducing the pressure of the liquid on the right end check valve disc, and the liquid on the right end of the check valve disc cannot flow to the left, ensuring that the medium can only flow in one direction, preventing system failure and pollution caused by backflow. When the pressure here is too high, automatic pressure relief can be achieved to protect the system safety and avoid damage caused by overpressure. The check valve disc is small in size when installed in the pipeline. The design structure is compact and convenient to install in different types of pipelines. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solution of the embodiment of the present invention, the drawings of the embodiment are briefly introduced below.

[0022] The drawings described below are only related to some embodiments of the present invention, but are not intended to limit the present invention.

[0023] In the attached picture:

[0024] Figure 1 The schematic diagram of the upper left front axial structure of the present application is shown;

[0025] Figure 2 The schematic diagram of the upper right rear axial structure of the present application is shown;

[0026] Figure 3 A schematic diagram of the structure of the main body of the fixed valve of the present application is shown;

[0027] Figure 4 A schematic diagram of the disassembled structure of the control pipe and the bearing sealing cover of the present application is shown;

[0028] Figure 5 A schematic diagram of a partial cross-section of the control pipeline and a partial disassembled structure of the bearing sealing cover of the present application is shown;

[0029] Figure 6 A schematic diagram of a cross-sectional structure of a control pipeline and a fixed liquid storage box of the present application is shown;

[0030] Figure 7 A schematic cross-sectional structure diagram of a fixed horizontal plate portion of the present application is shown;

[0031] Figure 8 A schematic diagram of the disassembled structure of the control pipe and the fixed horizontal plate of the present application is shown;

[0032] Fig. 9 A schematic diagram of the disassembled structure of the fixed top cover part of the present application is shown;

[0033] Fig.10 A schematic diagram of the explosion structure of the present application is shown.

[0034] Reference numerals list

[0035] 1. Fix the valve body; 101. Anti-slip stabilizing plate; 102. Liquid inlet pipe; 103. Discharge pipe; 104. Connecting flange; 2. Control pipe; 201. Fix the anti-slip groove; 202. Buffer extension pipe; 203. Guide vertical groove; 204. Buffer liquid inlet groove; 3. Bearing sealing cover; 301. Electric push rod; 302. Connecting plate; 303. Connecting vertical rod; 304. Positioning ring; 305. Closing plate; 306. Fix the anti-slip block; 307. Guide vertical plate; 4. Fix the horizontal plate; 401. Fix the guide hole; 402. Spring return rod; 403. Check valve disc; 404. Fix the guide rod; 5. Fix the top cover; 501. Fix the liquid storage box; 502. Connect the liquid extraction pipe; 503. Fix the pump body; 504. Connect the liquid discharge pipe. DETAILED DESCRIPTION

[0036] In order to make the purpose, technical solution and advantages of the embodiment of the present invention clearer, the technical solution of the embodiment of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiment of the present invention. Obviously, the described embodiment is a part of the embodiment of the present invention, not all of the embodiments. Based on the described embodiment 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.

[0037] Example 1: Please refer to Figures 1 to 10 :

[0038] The present invention proposes a self-depressurizing silencer check valve and its process, comprising: a fixed valve body 1; a threaded groove is evenly opened at the edge of the upper end of the fixed valve body 1; a control pipe 2 is fixedly installed in the inner cavity of the fixed valve body 1, and a through pipe hole is opened at the upper end of the control pipe 2; a bearing sealing cover 3 is fixedly installed at the upper end of the left end of the control pipe 2, and a through rod hole is opened in the middle of the bearing sealing cover 3; a fixing groove is opened at the left end of the bearing sealing cover 3; a fixed horizontal plate 4 is fixedly installed at the right end of the inner cavity of the control pipe 2, and a through circular hole is opened in the middle of the fixed horizontal plate 4; through fixed guide holes 401 are opened at both ends of the fixed horizontal plate 4; a through spring return rod 402 is inserted in the circular hole of the fixed horizontal plate 4, and the spring return rod 402 is inserted into the circular hole of the fixed horizontal plate 4. The right end of the positioning rod 402 is fixedly provided with a stopper; the side wall of the stopper on the spring return rod 402 is in contact with the side wall of the fixed cross plate 4, and the left end of the spring return rod 402 is fixedly provided with a check valve flap 403. When the liquid in the control pipe 2 moves the check valve flap 403 to the right, the spring on the spring return rod 402 is squeezed by the liquid and slowly moves to the right. At this time, the liquid will flow silently during the delivery process, thereby achieving the purpose of silencing the liquid during circulation. There is a gap between the check valve flap 403 and the side wall of the inner cavity of the buffer liquid inlet groove 204. The check valve flap 403 is slidably installed in the buffer liquid inlet groove 204, and the edge of the check valve flap 403 is tightly attached to the inner left side of the buffer liquid inlet groove 204, so that the liquid in the control pipe 2 flows to the left and is controlled by the check valve flap 403. The liquid in the control pipe 2 will flow to the right from the edge of the check valve disc 403. When the liquid in the control pipe 2 needs to stop flowing, the closing plate 305 is first moved downward to temporarily stop the liquid from flowing in the control pipe 2, so that the check valve disc 403 will not be impacted by the liquid. At this time, the spring on the spring reset rod 402 will be squeezed by the check valve disc 403 and the fixed cross plate 4 and shrink. At the same time, the check valve disc 403 moves to the right, and then the liquid in the control pipe 2 will flow to the right from the edge of the check valve disc 403. When the liquid in the control pipe 2 needs to stop flowing, the closing plate 305 is first moved downward to temporarily stop the liquid from flowing in the control pipe 2, so that the check valve disc 403 will not be impacted by the liquid. The spring on the reset rod 402 will push the check valve flap 403 to the left, and the check valve flap 403 will be used to close the liquid flowing in the control pipe 2, and the side wall of the check valve flap 403 is fixedly installed with mutually symmetrical fixed guide rods 404; the fixed guide rods 404 slide through the fixed guide hole 401, and when the check valve flap 403 slides left and right, the fixed guide rods 404 are restricted by the fixed guide hole 401, and the check valve flap 403 can only slide left and right, avoiding the check valve flap 403 from tilting when sliding left and right, and the check valve flap 403 cannot be stably and tightly attached to the left side of the buffer inlet tank 204. A fixed top cover 5 is installed at the mouth of the upper end of the fixed valve body 1, and a fixed hole is opened at the left end of the fixed top cover 5;The bearing sealing cover 3 penetrates the fixing hole at the left end of the fixed top cover 5, and a rectangular groove is provided at the right end of the fixed top cover 5, and a through-hole is provided in the rectangular groove of the fixed top cover 5; through-bolts are evenly inserted at the edge of the fixed top cover 5, and the bolts on the fixed top cover 5 are rotated and inserted into the thread groove of the fixed valve body 1, and the fixed top cover 5 is fixedly installed on the fixed valve body 1 by the bolts, and the fixed top cover 5 will not move when touched, thereby stably bearing and fixing the liquid storage box 501.;

[0039] Among them, an anti-slip stabilizing disk 101 is fixedly installed at the lower end of the fixed valve body 1, and the anti-slip stabilizing disk 101 is evenly provided with penetrating connecting holes. Screws are used to penetrate the connecting holes of the anti-slip stabilizing disk 101 and rotatably insert it on a fixed object, so as to fix and restrict the fixed valve body 1 to prevent the fixed valve body 1 from being touched and moving. A penetrating liquid inlet pipe 102 is fixedly inserted at the left end of the fixed valve body 1, and the liquid will enter the control pipe 2 of the fixed valve body 1 from the liquid inlet pipe 102. A connecting flange 104 is fixedly installed on the side wall of the liquid inlet pipe 102. A penetrating discharge pipe 103 is fixedly inserted at the right end of the fixed valve body 1, and the liquid in the control pipe 2 will be transported from the discharge pipe 103 to the right end connecting pipe, and a connecting flange 104 is fixedly installed on the side wall of the discharge pipe 103, and is firmly connected to the connecting pipe for transporting liquid through the connecting flanges 104 at both ends.

[0040] Among them, a fixed anti-slip groove 201 is opened at the left end of the bottom of the inner cavity of the control pipeline 2, a buffer extension tube 202 is fixedly installed on the upper end of the left end of the control pipeline 2, and the two ends of the inner wall of the buffer extension tube 202 are respectively provided with mutually parallel guide vertical grooves 203, a buffer liquid inlet groove 204 is opened at the right end of the inner cavity of the control pipeline 2, and an electric push rod 301 is fixedly installed at the fixed groove at the left end of the bearing sealing cover 3, a retaining ring is installed on the upper end of the electric push rod 301, and a connecting plate 3 is fixedly installed on the upper end of the electric push rod 301 02, a vertical connecting rod 303 is fixedly installed at the right end of the bottom of the connecting plate 302, and the connecting rod 303 penetrates the rod hole of the bearing sealing cover 3, and a positioning ring 304 is fixedly installed on the connecting rod 303. The connecting plate 302 is pushed upward by the electric push rod 301, so that the connecting plate 302 drives the connecting rod 303 and the closing plate 305 to move upward. When the closing plate 305 enters the inner cavity of the buffer extension tube 202, the liquid in the control pipeline 2 will flow to the right. The electric push rod 301 is used to push the connecting plate 302 upward, so that the connecting plate 302 drives the connecting rod 303 and the closing plate 305 to move upward. When the closing plate 305 enters the inner cavity of the buffer extension tube 202, the liquid in the control pipeline 2 will flow to the right. The control closing plate 305 moves downward. When the positioning ring 304 is in contact with the side wall of the bearing sealing cover 3, the closing plate 305 stops moving downward, and the fixed anti-dropping block 306 is inserted into the fixed anti-dropping groove 201, so that the closing plate 305 can close the liquid in the control pipeline 2. The closing plate 305 is fixedly installed at the lower end of the connecting vertical rod 303, and a connecting groove is provided in the middle of the upper end of the closing plate 305, and a fixed anti-dropping block 306 is fixedly installed at the lower end of the closing plate 305. The fixed anti-dropping block 306 is inserted in the fixed anti-dropping groove 201. The anti-slip groove 201 is fixed, so that the closing plate 305 will not move when impacted by liquid. The two sides of the closing plate 305 are respectively fixedly installed with mutually symmetrical guide vertical plates 307, and the guide vertical plates 307 are slidably installed in the guide vertical groove 203. When the closing plate 305 slides up and down, the guide vertical plates 307 are restricted by the guide vertical groove 203, and the closing plate 305 can only slide up and down to prevent the closing plate 305 from tilting when sliding up and down. The closing plate 305 cannot close the liquid flow in the control pipe 2.

[0041] The fixed top cover 5 has a rectangular groove fixedly mounted with a fixed liquid storage box 501, and a connecting liquid pumping pipe 502 is fixedly mounted at the bottom of the fixed liquid storage box 501. The connecting liquid pumping pipe 502 penetrates the pipe hole of the fixed top cover 5, and the lower end of the connecting liquid pumping pipe 502 is inserted into the inner cavity of the control pipe 2. The connecting liquid pumping pipe 502 is located between the closing plate 305 and the check valve disc 403. The rear end of the fixed liquid storage box 501 has a fixed pump body 503 fixedly mounted, and the rear end of the fixed pump body 503 is fixedly connected with a connecting liquid discharge pipe 504. A container is placed at the mouth of the outer end of the discharge pipe 504. When the liquid pressure in the control pipe 2 is too high, the fixed pump body 503 is started and the connecting suction pipe 502 is used to extract the liquid in the control pipe 2 into the fixed liquid storage box 501. When there is too much liquid in the fixed liquid storage box 501, it is transported outward through the connecting discharge pipe 504 into the container placed at the outer end. In this way, the liquid in the control pipe 2 is reduced to reduce the pressure, thereby avoiding excessively high liquid pressure in the control pipe 2 and also reducing the pressure of the liquid on the right-end check valve disc 403.

[0042] Embodiment 2, based on embodiment 1, as Figure 1 and Fig.10 As shown, through bolts are evenly inserted at the edge of the fixed top cover 5. The bolts on the fixed top cover 5 are removed, and then the fixed top cover 5 is fixedly welded to the mouth of the upper end of the fixed valve body 1. In this way, the fixed top cover 5 will not move when touched, preventing others from removing the fixed top cover 5, thereby preventing the bolts from loosening due to long-term use, and also saving parts costs, so that the fixed top cover 5 can fix and close the upper end of the fixed valve body 1.

[0043] The working principle of this embodiment is as follows: the connecting flanges 104 at both ends are firmly connected to the connecting pipes for conveying liquid, and the liquid will enter the control pipe 2 of the fixed valve body 1 from the liquid inlet pipe 102. The electric push rod 301 is used to push the connecting plate 302 upward, so that the connecting plate 302 drives the connecting vertical rod 303 and the closing plate 305 to move upward. When the closing plate 305 enters the inner cavity of the buffer extension tube 202, the liquid in the control pipe 2 will flow to the right, and the liquid in the control pipe 2 will flow to the right to squeeze the check valve flap 403 to the right. At this time, the spring on the spring return rod 402 will be squeezed by the check valve flap 403 and the fixed cross plate 4 and contracted, and the check valve flap 403 will move to the right, and then the liquid in the control pipe 2 will flow to the right from the edge of the check valve flap 403. When the liquid in the control pipe 2 needs to stop flowing, the electric push rod 301 is used to control the closing plate 305 to move downward. When the positioning ring 304 is attached to the side wall of the bearing sealing cover 3, the closing plate 305 will stop moving downward, and the fixed anti-slip block 306 will also be inserted into the fixed anti-slip groove 201, so that The closing plate 305 will close the liquid in the control pipe 2, temporarily stopping the liquid from circulating in the control pipe 2, so that the check valve flap 403 will not be impacted by the liquid. At this time, the spring on the spring return rod 402 will push the check valve flap 403 to the left, and the check valve flap 403 is slidably installed in the buffer liquid inlet groove 204. The edge of the check valve flap 403 is tightly attached to the inner left side of the buffer liquid inlet groove 204, and the check valve flap 403 is used to close the liquid circulating in the control pipe 2. The lower end of the connecting pipe 502 is inserted into the control pipe 2. In the inner cavity, the connecting liquid extraction tube 502 is located between the closing plate 305 and the check valve flap 403. The fixed pump body 503 is started and the connecting liquid extraction tube 502 is used to extract the liquid in the control pipe 2 into the fixed liquid storage box 501. When there is too much liquid in the fixed liquid storage box 501, it is transported outward through the connecting liquid discharge tube 504 into the container placed at the outer end. In this way, the liquid in the control pipe 2 is reduced to make the pressure too low, thereby avoiding the liquid pressure in the control pipe 2 being too high, and at the same time, the pressure of the liquid on the check valve flap 403 at the right end is also reduced.

[0044] In this article, there are a few points to note:

[0045] 1. The drawings of the embodiments of the present disclosure only involve structures related to the embodiments of the present disclosure, and other structures may refer to general designs.

[0046] 2. In the absence of conflict, the embodiments of the present disclosure and the features therein may be combined with each other to obtain new embodiments.

[0047] The above are only specific embodiments of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present disclosure, which should be included in the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be based on the protection scope of the claims.

Claims

1. A self-pressure relief and silencer check valve and its process, comprising: A fixed valve body (1); the edge of the upper end of the fixed valve body (1) is evenly provided with threaded grooves; a control pipe (2) is fixedly installed in the inner cavity of the fixed valve body (1), and a through-hole is provided at the upper end of the control pipe (2); a bearing sealing cover (3) is fixedly installed at the upper end of the left end of the control pipe (2), and a through-rod hole is provided in the middle of the bearing sealing cover (3); a fixed groove is provided at the left end of the bearing sealing cover (3); it is characterized in that a fixed transverse plate (4) is fixedly installed at the right end of the inner cavity of the control pipe (2), and a through-round hole is provided in the middle of the fixed transverse plate (4); both ends of the fixed transverse plate (4) are respectively provided with through-fixed guide holes (40 1); a spring return rod (402) is inserted into the circular hole of the fixed horizontal plate (4), and a stopper is fixedly installed on the right end of the spring return rod (402); a check valve flap (403) is fixedly installed on the left end of the spring return rod (402), and fixed guide rods (404) that are symmetrical to each other are fixedly installed on the side wall of the check valve flap (403); a fixed top cover (5) is installed at the mouth of the upper end of the fixed valve body (1), and a fixed hole is provided at the left end of the fixed top cover (5); a rectangular groove is provided at the right end of the fixed top cover (5), and a pipe hole is provided in the rectangular groove of the fixed top cover (5); and bolts are evenly inserted at the edge of the fixed top cover (5).

2. A self-pressure relief and silencer check valve and its process according to claim 1, characterized in that: An anti-slip stabilizing disk (101) is fixedly mounted on the lower end of the fixed valve body (1), and through connection holes are evenly arranged on the anti-slip stabilizing disk (101). A through liquid inlet pipe (102) is fixedly inserted on the left end of the fixed valve body (1).

3. A self-pressure relief and silencer check valve and its process according to claim 1, characterized in that: A discharge pipe (103) is fixedly inserted into the right end of the fixed valve body (1), and a connecting flange (104) is fixedly installed on the side wall of the discharge pipe (103).

4. A self-pressure relief and silencer check valve and its process according to claim 1, characterized in that: A fixed anti-slip groove (201) is provided at the left end of the bottom of the inner cavity of the control pipe (2), and a buffer extension pipe (202) is fixedly installed at the upper end of the left end of the control pipe (2).

5. A self-pressure relief and silencer check valve and its process according to claim 4, characterized in that: The two ends of the inner wall of the buffer extension tube (202) are respectively provided with mutually parallel guide vertical grooves (203), and the right end of the inner cavity of the control pipeline (2) is provided with a buffer liquid inlet groove (204).

6. A self-pressure relief and silencer check valve and its process according to claim 1, characterized in that: An electric push rod (301) is fixedly mounted at the fixing groove at the left end of the bearing sealing cover (3), and a connecting plate (302) is fixedly mounted at the upper end of the electric push rod (301).

7. A self-pressure relief and silencer check valve and its process according to claim 6, characterized in that: A vertical connecting rod (303) extending vertically downward is fixedly mounted on the right end of the bottom of the connecting plate (302), and a positioning ring (304) is fixedly mounted on the vertical connecting rod (303).

8. A self-pressure relief and silencer check valve and its process according to claim 7, characterized in that: A closing plate (305) is fixedly mounted at the lower end of the connecting vertical rod (303), and a fixed anti-falling block (306) is fixedly mounted at the lower end of the closing plate (305). Mutually symmetrical guide vertical plates (307) are fixedly mounted on both sides of the closing plate (305).

9. A self-pressure relief and silencer check valve and its process according to claim 1, characterized in that: A fixed liquid storage box (501) is fixedly mounted at the rectangular groove of the fixed top cover (5), and a connecting liquid extraction pipe (502) is fixedly mounted through the bottom of the fixed liquid storage box (501). A fixed pump body (503) is fixedly mounted at the rear end of the fixed liquid storage box (501), and a connecting liquid discharge pipe (504) is fixedly connected to the rear end of the fixed pump body (503).

10. The process for using the self-pressure relief and silencer check valve according to claim 5 is characterized in that: The following steps are involved: 1) First, use the electric push rod (301) to move the connecting plate (302) upward, thereby driving the closing plate (305) to move upward, and then the liquid will flow from the liquid inlet pipe (102) into the control pipe (2); 2) Then, the liquid in the control pipe (2) pushes the check valve flap (403) to the right, causing the check valve flap (403) to move to the right. At this time, the liquid will flow to the right from the control pipe (2) and then be transported from the discharge pipe (103) to the right end connecting pipe; 3) When the liquid in the control pipe (2) stops flowing, the closing plate (305) is first moved downward to close the control pipe (2), and the check valve flap (403) is reset without being impacted by the liquid, thereby blocking the liquid in the control pipe (2); 4) Then, the fixed pump body (503) is started, and the liquid in the control pipe (2) is extracted into the fixed liquid storage box (501) through the connecting liquid extraction pipe (502). When there is too much liquid in the fixed liquid storage box (501), the liquid is transported outward through the connecting liquid discharge pipe (504) to prevent the liquid in the control pipe (2) from being too high in pressure.

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