Pipe force valve with anti-shock protection structure

Abstract

The application discloses a pipe force valve with an anti-seismic protection structure, which comprises a valve body, a valve plate body, a valve rod body, a top rod shaft sleeve and a diaphragm body, the valve rod body is connected through the inside of the valve body, one side of the valve rod body is fixedly connected with the valve plate body, the upper end of the valve body is fixedly connected with the top rod shaft sleeve, and the inside of the top rod shaft sleeve is fixedly connected with the diaphragm body. The pipe force valve with the anti-seismic protection structure, when the pipe force valve body is impacted by the outside, the shell is extruded to one side of the valve body, the telescopic rod starts to contract, and the extrusion buffer air bag is extruded, at this time, the buffer air bag is buffered, when the shell moves inward, the buffer spring is compressed synchronously under the action force, and the impact force is secondarily buffered, so that the pipe force valve is less likely to be damaged under the external impact force, and the possibility of affecting the normal work of the valve is reduced.

Description

Technical Field

[0001] This invention relates to the field of pipe force valve technology, specifically a pipe force valve with an anti-vibration protection structure. Background Technology

[0002] Pipe force valves are components used in the outlet pipes of automated drainage pumping stations. They have a wide range of applications and can be used for various water qualities. Due to their compact structure, small size, and light weight, pipe force valves are used in power, environmental protection, and municipal transportation systems. However, existing pipe force valves still have some defects and shortcomings that need improvement:

[0003] For example, a pipe force valve with application number CN201020611149.0 includes a valve body, a control chamber at the top of the valve body, and the control chamber is connected to the inlet and outlet of the valve body through an inlet bypass fitting and an outlet bypass fitting, respectively. A large valve plate body is mounted in the valve body through a valve shaft. One end of a first small valve plate handle is hinged to the valve shaft, and the other end has a first small valve plate and is hinged to the control rod of the control chamber through a connecting rod. The first small valve plate seals against a vent hole on the large valve plate body. The sealing surface of the large valve plate body... The angle α between the centerline and the vertical direction is 5-35°, the angle β between the central axis of the control rod and the vertical direction is 5-60°, the angle α between the centerline of the sealing surface of the large valve plate body and the vertical direction is 20°, and the angle β between the central axis of the control cavity and the vertical direction is 35°. The pipe force valve using the above technical solution reduces the angle of the main valve seat by the oblique placement of the control cavity, which is beneficial for processing larger diameter valves on smaller equipment, reducing equipment investment costs, and further improving the stress condition of the control rod.

[0004] In some operating conditions with high levels of mud, sand, and debris, the control pipeline of the pipe-operated valve mentioned in the above document is prone to blockage, leading to valve malfunction. Large debris can easily jam the valve plate, resulting in poor valve sealing. When such valve malfunctions occur, it is impossible to determine the abnormal state of the valve in a timely manner.

[0005] A pipe force valve, as described in application number CN201620485249.0, includes: a valve body, a main control cylinder, a large valve disc, a small valve disc, a slow-closing regulating valve, a check valve, a valve stem, and a transmission rod. The valve stem is disposed within the valve body and rotatably connected to it. The large valve disc is connected to the valve stem and divides the valve body into a valve inlet end and a valve outlet end. A first sealing ring is provided outside the large valve disc. The main control cylinder is disposed on the valve body and contains a piston that divides it into an upper main control cylinder and a lower main control cylinder. The upper main control cylinder is connected to the valve outlet end, and the lower main control cylinder is connected to the valve inlet end. A slow-closing regulating valve is provided between the upper main control cylinder and the valve outlet end, and a check valve is provided between the lower main control cylinder and the valve inlet end. The large valve disc has a valve disc orifice that matches the small valve disc. One end of the transmission rod is connected to the piston, and the other end extends through the main control cylinder into the valve body and is connected to the small valve disc. The small valve disc can open or close the valve disc orifice under the action of the transmission rod.

[0006] The pipe valve mentioned in the above document has poor external shock resistance. When the pipe valve is subjected to external impact, it may cause damage to the management valve, and may even damage the internal water outlet pipe, affecting the normal operation of subsequent valves.

[0007] Therefore, we propose a pipe force valve with a seismic protection structure to solve the problems mentioned above. Summary of the Invention

[0008] The purpose of this invention is to provide a pipe force valve with a seismic protection structure to solve the problems mentioned in the background art, such as the poor seismic resistance of the valve currently on the market and the inability to immediately determine the abnormal state of the valve when such a failure occurs.

[0009] To achieve the above objectives, the present invention provides the following technical solution: a pipe force valve with an anti-seismic protection structure, comprising a valve body, a valve plate body, a valve stem body, a push rod bushing and a diaphragm body, wherein the valve stem body is connected through the interior of the valve body, and the valve plate body is fixedly connected to one side of the valve stem body, and the push rod bushing is fixedly connected to the upper end of the valve body, while the diaphragm body is fixedly connected inside the push rod bushing.

[0010] A valve groove is formed around the outside of the valve body, and a buffer airbag is attached to the inside of the valve groove, and a telescopic rod is fixedly connected above the buffer airbag.

[0011] The intelligent control box is fixedly connected to the outside of the valve body, and a bracket body is fixedly connected to the outer surface of the valve body. A rubber shock-absorbing block is fixedly connected to the outside of the bracket body, and an armored conduit is connected through the top of the intelligent control box.

[0012] A bypass pipeline assembly is provided with a diaphragm cover on one side, and a photovoltaic power system is electrically connected to one side of the bypass pipeline assembly, and the photovoltaic power system is electrically connected to the intelligent control box.

[0013] Preferably, the other end of the telescopic rod is fixedly connected to a housing, and the housing is annular in structure. The housing and the valve body are concentric, and the valve groove is equidistant from the center point of the valve body. The housing can protect the valve body.

[0014] Preferably, a buffer spring is fixedly connected to the outer side of the buffer airbag, and the other end of the buffer spring is fixedly connected to the inner side of the outer shell. A telescopic rod is connected through the inside of the buffer airbag. At the same time, the outer shell and the buffer airbag form an elastic structure through the buffer spring. When the outer shell is hit by a collision, the impact force of the buffer spring is buffered, and the buffer airbag will further buffer the impact force.

[0015] Preferably, a push rod body is connected through the upper end of the valve body, and a diaphragm pressure plate is fixedly connected to the outer side of the upper end of the push rod body, and a push rod bushing is fixedly connected to the outer side of the lower end of the push rod body. At the same time, the push rod bushing is fixedly connected to the inner side of the valve body, and the push rod body can move on the valve body.

[0016] Preferably, a push rod guide sleeve is fixedly connected to the outer side of the upper end of the push rod body, and the push rod guide sleeve is fixedly connected to the diaphragm body. A diaphragm seat is fixedly connected to the lower end of the diaphragm body. Meanwhile, the bypass pipeline assembly includes a straight head, a bend joint, a tee, a pressure gauge, a pressure transmitter, a regulating check valve, a ball valve, a solenoid pilot valve, and pipe fittings. The bypass pipeline assembly provides feedback regulation for the water hammer reaction.

[0017] Preferably, a valve stem bushing is fixedly connected to one outer end of the valve stem body, and the valve stem bushing is fixedly connected to the valve body. A sealing end cap is fixedly connected to the outside of the valve body, and the valve stem body passes through the inside of the sealing end cap. The valve stem bushing seals the valve stem body.

[0018] Preferably, a cap is fixedly connected to the other outer end of the valve stem body, and a semi-open ring is fixedly connected to the outside of the cap. The semi-open ring is also fixedly connected to the outside of the valve body. The cap will block the other outer end of the valve stem body.

[0019] Preferably, a small valve plate pressure plate is fixedly connected to the upper end of the valve plate body, and a small valve plate rubber plate is fixedly connected to the upper surface of the small valve plate pressure plate, and a first small valve plate is fixedly connected to the upper surface of the small valve plate rubber plate. At the same time, a small valve plate crank is rotatably connected to one side of the valve plate body. The small valve plate rubber plate makes the connection between the small valve plate pressure plate and the first small valve plate more airtight.

[0020] Preferably, small valve plate positioning rings are fixedly connected to both sides of the first small valve plate, and the other end of the small valve plate positioning rings is fixedly connected to the valve plate body. The bottom end of the push rod body is nested and connected to one side of the small valve plate crank, and a foot support is fixedly connected to the bottom of the valve body. The small valve plate crank will drive the push rod body to move.

[0021] Compared with the prior art, the beneficial effects of the present invention are:

[0022] (1) The pipe force valve with anti-seismic protection structure is equipped with a buffer airbag. When the pipe force valve body is impacted by the outside, the outer shell will be squeezed to one side of the valve body. At this time, the outer shell will simultaneously squeeze the telescopic rod, and the telescopic rod will begin to retract. At the same time, the telescopic rod will squeeze the buffer airbag attached inside the valve groove under the action of the impact force. At this time, the buffer airbag will buffer. When the outer shell moves inward, the buffer spring will be compressed simultaneously under the action force, and the impact force will be buffered twice. When the outer shell is not under force, the buffer spring is also not under force. The buffer spring will simultaneously push the outer shell outward to reset. The outer shell will simultaneously drive the telescopic rod to extend and reset. This structure can reduce the possibility of damage to the pipe force valve caused by external impact force, which may affect the normal operation of the valve in the future.

[0023] (2) The pipe force valve with anti-seismic protection structure is equipped with a bypass pipeline assembly. When water hammer occurs, the large valve disc has a check function and quickly closes to isolate most of the hydraulic impact. At this time, the first small valve plate has not yet closed. The pressure transmitter and air pressure sensor collect signals and transmit them to the control box for processing. The signal fluctuation is analyzed, and the control signal that best matches the actual situation is output to control the electromagnetic pilot valve to adjust the slow closing time. It is also synchronized to the smart water system to send control and alarm signals to other smart water series products. The photovoltaic power system provides stable power support to prevent the smart control box from losing control capability due to power failure. The pressure transmitter and electromagnetic pilot valve are added to the original bypass pipeline assembly. The photovoltaic power system is connected to the intelligent control box, and the pressure transmitter and air pressure sensor are connected to the intelligent control box. The small valve plate crank shaft control groove always passes through its rotation center with the normal of the involute, which perfectly solves the bending failure of the push rod due to horizontal thrust.

[0024] (3) The pipe force valve with anti-seismic protection structure is equipped with a photovoltaic power system and has functions such as equipment self-inspection and online monitoring. It can analyze the current pressure status of the valve to determine whether there are hidden dangers and faults, and transmit alarm signals in real time. At the same time, in the event of water hammer caused by power outages, pump stoppages, etc., it can also send alarm signals and control signals through abnormal fluctuations in the pressure signal inside the pipe, and control other smart water series products to maintain equipment safety. The valve status can be monitored through the human-machine interaction system. The bracket and the intelligent control box are connected by rubber anti-vibration blocks to effectively avoid the impact of pipeline vibration on the control box and prevent the control module from being damaged due to vibration. The signal transmission rate is high, and the MOUDBUS485 communication and 4G communication functions or other communication methods can be selected to ensure the authenticity and real-time nature of signal acquisition and eliminate most interference signals. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the front sectional view of the present invention;

[0026] Figure 2 This is a schematic diagram of the front sectional view of the valve body of the present invention;

[0027] Figure 3 This is a schematic diagram of the side sectional structure of the present invention;

[0028] Figure 4 This is a schematic diagram of the side cross-sectional structure of the first small valve plate of the present invention;

[0029] Figure 5 This is a schematic diagram of the front sectional view of the diaphragm cover of the present invention;

[0030] Figure 6 This is a schematic diagram of the front cross-sectional structure of the buffer airbag of the present invention;

[0031] Figure 7 For the present invention Figure 2 Enlarged schematic diagram of point A in the middle;

[0032] Figure 8 This is a schematic diagram of the front sectional view of the buffer spring of the present invention.

[0033] In the diagram: 1. Valve body; 2. Valve plate body; 3. Sealing end cap; 4. Valve stem body; 5. Valve stem bushing; 6. Small valve plate positioning ring; 7. Push rod bushing; 8. Push rod guide sleeve; 9. Diaphragm seat; 10. Intelligent control box; 11. Support body; 12. Rubber shock absorber; 13. Diaphragm body; 14. Armored conduit; 15. Push rod body; 16. Diaphragm pressure plate; 17. Diaphragm cover; 18. Bypass pipeline assembly; 19. End cap; 20. Semi-open ring; 21. Photovoltaic power system; 22. Small valve plate crank; 23. First small valve plate; 24. Small valve plate rubber plate; 25. Small valve plate pressure plate; 26. Anchor bracket; 101. Valve groove; 102. Buffer airbag; 103. Buffer spring; 104. Outer shell; 105. Telescopic rod. Detailed Implementation

[0034] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0035] Please see Figures 1-8 This invention provides a technical solution: a pipe force valve with an anti-vibration protection structure, comprising a valve body 1, a valve plate body 2, a sealing end cap 3, a valve stem body 4, a valve stem bushing 5, a small valve plate positioning ring 6, a push rod bushing 7, a push rod guide sleeve 8, a diaphragm seat 9, an intelligent control box 10, a support body 11, a rubber anti-vibration block 12, a diaphragm body 13, an armored conduit 14, a push rod body 15, a diaphragm pressure plate 16, a diaphragm cover 17, a bypass pipeline assembly 18, a blind cap 19, a semi-open ring 20, a photovoltaic power system 21, a small valve plate crank 22, a first small valve plate 23, a small valve plate rubber plate 24, a small valve plate pressure plate 25, a foot bracket 26, a valve groove 101, a buffer airbag 102, a buffer spring 103, a shell 104, and a telescopic rod 105.

[0036] The valve body 1, valve plate body 2, valve stem body 4, push rod bushing 7 and diaphragm body 13 are connected through the valve stem body 4 inside the valve body 1. The valve plate body 2 is fixedly connected to one side of the valve stem body 4. The push rod bushing 7 is fixedly connected to the upper end of the valve body 1. The diaphragm body 13 is fixedly connected inside the push rod bushing 7.

[0037] A valve groove 101 is formed around the outside of the valve body 1, and a buffer airbag 102 is attached to the inside of the valve groove 101, and a telescopic rod 105 is fixedly connected to the top of the buffer airbag 102.

[0038] The intelligent control box 10 is fixedly connected to the outside of the valve body 1, and a bracket body 11 is fixedly connected to the outer surface of the valve body 1. A rubber shock-absorbing block 12 is fixedly connected to the outside of the bracket body 11. Meanwhile, an armored conduit 14 is connected through the top of the intelligent control box 10.

[0039] A bypass pipeline assembly 18 is provided with a diaphragm cover 17 on one side, and a photovoltaic power system 21 is electrically connected to one side of the bypass pipeline assembly 18. The photovoltaic power system 21 is electrically connected to the intelligent control box 10.

[0040] The other end of the telescopic rod 105 is fixedly connected to the outer shell 104, which is an annular structure and has the same center as the valve body 1. Meanwhile, the valve groove 101 is opened at equal distances from the center point of the valve body 1. The outer side of the buffer airbag 102 is fixedly connected to the buffer spring 103, and the other end of the buffer spring 103 is fixedly connected to the inner side of the outer shell 104. The telescopic rod 105 is connected through the interior of the buffer airbag 102. Meanwhile, the outer shell 104 and the buffer airbag 102 form an elastic structure through the buffer spring 103.

[0041] according to Figure 1 , Figure 6 and Figure 8 When the valve body is subjected to an external impact, the outer casing 104 will press against the valve body 1. At this time, the outer casing 104 will simultaneously press against the telescopic rod 105, causing the telescopic rod 105 to retract. Simultaneously, the telescopic rod 105 will press against the buffer airbag 102 attached to the inside of the valve groove 101 under the impact force, thus providing cushioning. When the outer casing 104 moves inward, the buffer spring 103 will be compressed simultaneously under the force, providing secondary cushioning against the impact force. When the outer casing 104 is no longer under force, the buffer spring 103 will also be no longer under force, and will simultaneously push the outer casing 104 outward to reset. The outer casing 104 will simultaneously drive the telescopic rod 105 to extend and reset.

[0042] A push rod body 15 is connected to the upper end of the valve body 1. A diaphragm pressure plate 16 is fixedly connected to the outer side of the upper end of the push rod body 15. A push rod bushing 7 is fixedly connected to the outer side of the lower end of the push rod body 15. The push rod bushing 7 is fixedly connected to the inner side of the valve body 1. A push rod guide sleeve 8 is fixedly connected to the outer side of the upper end of the push rod body 15. The push rod guide sleeve 8 is fixedly connected to the diaphragm body 13. A diaphragm seat 9 is fixedly connected to the lower end of the diaphragm body 13. The bypass pipeline assembly 18 includes a straight head, a bend joint, a tee, a pressure gauge, a pressure transmitter, a regulating check valve, a ball valve, a solenoid pilot valve, and pipe fittings. A valve stem bushing 5 is fixedly connected to the outer side of one side of the valve stem body 4. The valve stem bushing 5 is fixedly connected to the valve body 1. A sealing end cap 3 is fixedly connected to the outer side of the valve body 1. The valve stem body 4 is connected through the interior of the sealing end cap 3.

[0043] according to Figure 1 , Figure 5 and Figure 7 When water hammer occurs, the large valve disc acts as a check valve, quickly closing and isolating most of the hydraulic impact. At this time, the first small valve plate 23 is not yet closed. The pressure transmitter and air pressure sensor collect signals and transmit them to the control box for processing. The signal fluctuations are analyzed, and the most realistic control signal is output to control the electromagnetic pilot valve to adjust the slow closing time. The signal is also synchronized to the smart water system to send control and alarm signals to other smart water series products. The photovoltaic power system 21 provides stable power support to prevent the smart control box 10 from losing control capability due to power failure. A pressure transmitter and electromagnetic pilot valve are added to the original bypass pipeline assembly 18. The photovoltaic power system 21 is connected, and the pressure transmitter and air pressure sensor are connected to the smart control box 10. The shaft control groove of the small valve plate crank 22 always passes through its rotation center with the normal of the involute, which perfectly solves the bending failure of the push rod body 15 caused by horizontal thrust.

[0044] A cap 19 is fixedly connected to the outer end of the valve stem body 4 on the other side, and a semi-open ring 20 is fixedly connected to the outer side of the cap 19. The semi-open ring 20 is also fixedly connected to the outer side of the valve body 1. A small valve plate pressure plate 25 is fixedly connected to the upper end of the valve plate body 2, and a small valve plate rubber plate 24 is fixedly connected to the upper surface of the small valve plate pressure plate 25. A first small valve plate 23 is fixedly connected to the upper surface of the small valve plate rubber plate 24. Meanwhile, a small valve plate crank 22 is rotatably connected to one side of the valve plate body 2. Small valve plate positioning rings 6 are fixedly connected to both sides of the first small valve plate 23, and the other end of the small valve plate positioning ring 6 is fixedly connected to the valve plate body 2. The bottom end of the push rod body 15 is nested and connected to one side of the small valve plate crank 22, and a foot bracket 26 is fixedly connected to the bottom of the valve body 1.

[0045] according to Figure 1 , Figure 2 , Figure 3 and Figure 4It features self-inspection and online monitoring functions. By analyzing the current pressure status of valves, it can determine whether there are hidden dangers and faults, and transmit alarm signals in real time. At the same time, in the event of water hammer caused by power outages, pump shutdowns, etc., it can also send alarm and control signals through abnormal fluctuations in the pipe pressure signal, and coordinate with other smart water series products to maintain equipment safety. Valve status can be monitored through the human-machine interaction system. The bracket body 11 and the intelligent control box 10 are connected by rubber anti-vibration blocks 12, which effectively avoids the impact of pipeline vibration on the intelligent control box 10 and prevents the control module of the intelligent control box 10 from being damaged due to vibration. It has a high signal transmission rate and can be equipped with MOUDBUS 485 communication and 4G communication functions or other communication methods to ensure the authenticity and real-time nature of signal acquisition and eliminate most interference signals.

[0046] In the description of this invention, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0047] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0048] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A pipe force valve with an anti-seismic protection structure, comprising a valve body (1), a valve plate body (2), a valve stem body (4), a push rod bushing (7), and a diaphragm body (13), wherein the valve stem body (4) is connected through the interior of the valve body (1), and the valve plate body (2) is fixedly connected to one side of the valve stem body (4), and the push rod bushing (7) is fixedly connected to the upper end of the valve body (1), while the diaphragm body (13) is fixedly connected inside the push rod bushing (7); Its features are, Also includes A valve groove (101) is formed around the outside of the valve body (1), and a buffer airbag (102) is attached to the inside of the valve groove (101), and a telescopic rod (105) is fixedly connected above the buffer airbag (102). The intelligent control box (10) is fixedly connected to the outside of the valve body (1), and a bracket body (11) is fixedly connected to the outer surface of the valve body (1), and a rubber shock-absorbing block (12) is fixedly connected to the outside of the bracket body (11). Meanwhile, an armored conduit (14) is connected through the top of the intelligent control box (10). A bypass pipeline assembly (18) is provided with a diaphragm cover (17) on one side, and a photovoltaic power system (21) is electrically connected to one side of the bypass pipeline assembly (18), and the photovoltaic power system (21) is electrically connected to the intelligent control box (10).

2. A pipe valve with an anti-seismic protection structure according to claim 1, characterized in that: The other end of the telescopic rod (105) is fixedly connected to the outer shell (104), and the outer shell (104) is a ring structure. The outer shell (104) and the valve body (1) are concentric, and the valve groove (101) is opened at equal distances from the center point of the valve body (1).

3. A pipe valve with an anti-seismic protection structure according to claim 1, characterized in that: A buffer spring (103) is fixedly connected to the outside of the buffer airbag (102), and the other end of the buffer spring (103) is fixedly connected to the inside of the outer shell (104). A telescopic rod (105) is connected through the inside of the buffer airbag (102), and the outer shell (104) and the buffer airbag (102) form an elastic structure through the buffer spring (103).

4. A pipe valve with an anti-seismic protection structure according to claim 1, characterized in that: The upper end of the valve body (1) is connected to a push rod body (15), and a diaphragm pressure plate (16) is fixedly connected to the outer side of the upper end of the push rod body (15). The lower end of the push rod body (15) is fixedly connected to a push rod bushing (7), and the push rod bushing (7) is fixedly connected to the inner side of the valve body (1).

5. A pipe valve with an anti-seismic protection structure according to claim 4, characterized in that: The upper outer side of the push rod body (15) is fixedly connected to the push rod guide sleeve (8), and the push rod guide sleeve (8) is fixedly connected to the diaphragm body (13). The lower end of the diaphragm body (13) is fixedly connected to the diaphragm seat (9). Meanwhile, the bypass pipeline assembly (18) includes a straight head, a bend joint, a tee, a pressure gauge, a pressure transmitter, a regulating check valve, a ball valve, a solenoid pilot valve, and pipe fittings. They are interconnected to form a complete bypass flow path, which can be activated when the main pipeline is under maintenance or when the flow needs to be adjusted. The pressure gauge can monitor the pressure status in the bypass pipeline in real time. The pressure transmitter converts the pressure signal into an electrical signal and transmits it to the intelligent control box (10) for remote monitoring and data recording. The regulating check valve can effectively prevent backflow of the medium and ensure the stability of the bypass pipeline operation. The ball valve and the solenoid pilot valve are used for manual and automatic control of the bypass pipeline opening and closing, respectively, to realize flexible adjustment of the working state of the pipe valve.

6. A pipe valve with an anti-seismic protection structure according to claim 1, characterized in that: A valve stem bushing (5) is fixedly connected to one side of the outer end of the valve stem body (4), and the valve stem bushing (5) is fixedly connected to the valve body (1). A sealing end cap (3) is fixedly connected to the outside of the valve body (1), and the valve stem body (4) is connected through the inside of the sealing end cap (3).

7. A pipe valve with an anti-seismic protection structure according to claim 1, characterized in that: A cap (19) is fixedly connected to the outer end of the valve stem body (4) on the other side, and a semi-open ring (20) is fixedly connected to the outer side of the cap (19), and the semi-open ring (20) is also fixedly connected to the outer side of the valve body (1).

8. A pipe valve with an anti-seismic protection structure according to claim 5, characterized in that: The upper end of the valve plate body (2) is fixedly connected to a small valve plate pressure plate (25), and the upper surface of the small valve plate pressure plate (25) is fixedly connected to a small valve plate rubber plate (24), and the upper surface of the small valve plate rubber plate (24) is fixedly connected to a first small valve plate (23). Meanwhile, a small valve plate crank (22) is rotatably connected to one side of the valve plate body (2).

9. A pipe valve with an anti-seismic protection structure according to claim 8, characterized in that: The first small valve plate (23) is fixedly connected to both sides of the small valve plate positioning ring (6), and the other end of the small valve plate positioning ring (6) is fixedly connected to the valve plate body (2). The bottom end of the top rod body (15) is nested and connected to one side of the small valve plate crank (22), and the bottom of the valve body (1) is fixedly connected to the foot bracket.

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