Mountain tunnel drainage channel pressure reduction mechanism
By adopting automatic adjustment technology in the pressure reduction mechanism of the mountain tunnel drainage channel and adjusting the pressure range by using motors, controllers and pressure receivers, the problem of traditional pressure reduction mechanisms requiring multiple manual adjustments when dealing with unstable inlet pressure is solved, achieving higher automation and stability.
Patent Information
- Application Number
- CN202411470278.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-21
- Publication Date
- 2025-03-04
AI Technical Summary
Traditional pressure reducing mechanisms require multiple adjustments when dealing with unstable inlet pressure, and require manual real-time observation, so they cannot automatically adjust the pressure range.
A mountain tunnel drainage channel pressure reduction mechanism is designed, and the open state of the liquid inlet chamber is adjusted through the motor, controller and pressure receiver through automatic adjustment, and the liquid outflow pressure is adjusted in real time according to the liquid inlet pressure.
It realizes automatic adjustment of the pressure range when the inlet pressure changes, reduces the number of manual adjustments, and improves the stability and automation level of the system.
Smart Images
Figure CN119554459A_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of pressure reducing mechanisms, and more specifically, to a pressure reducing mechanism for a drainage channel in a mountain tunnel. Background Art
[0002] Existing water conservancy projects generally install pressure reducing mechanisms at the outlets of high-water drainage channels or culverts to control the flow of water, reduce the pressure of the water flow, and prevent floods or river water from eroding the riverbed and river banks too violently and affecting the stability of the river channel. It also has the function of lowering the water level for irrigation and channel maintenance.
[0003] Traditional pressure reducing mechanisms have certain defects during use: First, traditional pressure reducing mechanisms need to pre-set the pressure range value during use, and the pressure reducing range of the pressure reducing mechanism is preset through a manual adjustment device. During use, the fluctuation and balance operation within the preset pressure range is achieved through the fluid's own pressure, and finally the pressure reducing operation at the outlet is achieved. However, it is found in the actual use process that the traditional pressure reducing mechanism loses its adjustment advantage when dealing with changes in the inlet pressure, and it is often necessary to adjust the preset pressure range again according to the display of the pressure gauge. When dealing with unstable inlet pressure liquid output operations, the traditional pressure reducing mechanism needs to be adjusted multiple times, and requires manual observation and real-time attention.
[0004] In order to solve the above problems, the present application provides a mountain tunnel drainage channel pressure relief mechanism. Summary of the invention
[0005] The present application provides a mountain tunnel drainage channel pressure relief mechanism that adopts the following technical solution: A mountain tunnel drainage channel pressure relief mechanism, comprising a pressure regulating shell, wherein a pressure relief mechanism is arranged inside the pressure regulating shell, and the pressure relief mechanism extends to the outside of the pressure regulating shell; The pressure reducing mechanism comprises a pressure sensing shell, which is threadedly sleeved on the outer side of the bottom of the pressure regulating shell, a spring sheet is fixedly embedded in the pressure sensing shell, a pressure sensing cavity is arranged between the spring sheet and the pressure sensing shell, a shell is installed at the bottom of the pressure sensing shell, a liquid inlet and a liquid outlet are respectively arranged on both sides of the shell, liquid outlet connecting sleeves are fixedly connected on both sides of the shell, a channel opening and closing shell is installed at the bottom of the shell, a passage frame is fixedly embedded in the shell, a liquid inlet cavity is opened in the passage frame, a pressure reducing liquid outlet cavity is opened in one side of the passage frame, the pressure reducing liquid outlet cavity is communicated with the liquid inlet cavity, a pressure balancing tube is fixedly embedded in the inner side of the top of the shell, the bottom end of the pressure balancing tube is located on one side of the pressure reducing liquid outlet cavity, and an automatic regulating component is arranged on the outer side of the pressure balancing tube.
[0006] Furthermore, the automatic adjustment component includes a control box, which is installed on the top of the pressure adjustment shell. A motor, a controller and a pressure receiver are embedded in the control box, and the motor is located between the controller and the pressure receiver.
[0007] Through the above technical solution, by setting up a motor, a controller and a pressure receiver, the opening state of the liquid inlet cavity can be adjusted accordingly according to the size of the liquid inlet pressure inside the shell.
[0008] Furthermore, the motor output shaft is fixedly connected with a screw rod, the inner wall of the bottom of the pressure regulating shell is fixedly connected with a sliding limit channel, the bottom end of the screw rod extends into the sliding limit channel, and two limit grooves are provided inside the sliding limit channel.
[0009] Furthermore, the two limit grooves are symmetrically arranged with the center line of the sliding limit channel as the axis, the outer wall of the screw is screwed with a threaded block, both sides of the threaded block extend into the two limit grooves respectively, and the threaded blocks are matched with the two limit grooves.
[0010] Through the above technical solution, by providing two limiting grooves, the threaded block can be further limited, so that the threaded block can move up and down more smoothly and firmly.
[0011] Furthermore, two sliding connecting rods are fixedly connected to the bottom of the threaded block, the bottom ends of the two sliding connecting rods are fixedly connected to an upper pressure plate, the bottom of the upper pressure plate is fixedly connected to a pressure receiving plate, and a lower pressure plate is provided at the bottom of the pressure receiving plate.
[0012] Furthermore, the pressure receiving plate and the inner side of the lower pressure plate are respectively fixedly connected with multiple connecting rods and multiple sleeves, the multiple sleeves are respectively sleeved on the outer sides of the bottom ends of the multiple connecting rods, and a spring is fixedly connected between the multiple connecting rods and the multiple sleeves, and the bottom of the lower pressure plate is in contact with the top of the spring.
[0013] Through the above technical solution, by setting up multiple springs, the overall flexibility of the structure during use can be enhanced, thereby achieving a better overall effect during use.
[0014] Furthermore, a deformation pressure sensor is installed at the bottom of the pressure receiving plate, and telescopic pressure measuring springs are provided on the top and bottom of the deformation pressure sensor. The deformation pressure sensor is connected to the pressure receiver through a wire, the pressure receiver is connected to the controller through a wire, and the controller is connected to the motor through a wire.
[0015] Through the above technical solution, by setting a pressure sensor, the liquid inlet pressure inside the shell can be monitored in real time.
[0016] Furthermore, a maintenance plugging head is installed at the bottom of the channel opening and closing shell through a threaded connection, a connecting block is fixedly connected to the top of the maintenance plugging head, a spring 2 is fixedly connected to the top of the connecting block, a sealing sleeve is fixedly connected to the top of the spring 2, the sealing sleeve matches the passage frame, a lifting rod is fixedly connected to the top of the sealing sleeve, the top of the lifting rod passes through the center position of the top of the shell and contacts the bottom of the spring.
[0017] Through the above technical solution, by setting the second spring, the height of the plugging sleeve can be adjusted according to the liquid inlet pressure inside the shell.
[0018] Furthermore, a sealing ring is fixedly embedded inside the pressure sensing shell, the top of the sealing ring is tightly fitted with the bottom of the pressure regulating shell, a fixing ring is fixedly sleeved on the outside of the pressure regulating shell, two connecting grooves are provided inside the fixing ring, and two positioning grooves are provided on the top of the pressure sensing shell.
[0019] Through the above technical solution, by providing a sealing ring, the sealing between the pressure sensing shell and the pressure regulating shell can be strengthened, thereby making the use efficiency higher.
[0020] Furthermore, the two positioning grooves and the two connecting grooves are symmetrically arranged with the center line of the pressure sensing shell and the fixing ring as the axis, positioning blocks are embedded in the two positioning grooves, springs three are fixedly connected to the tops of the two positioning blocks, pull rods are fixedly connected to the tops of the two springs three, pull rings are fixedly connected to the tops of the two pull rods, the two springs three and the two pull rods are embedded in the two connecting grooves respectively, and the pull rings are located at the top of the pressure sensing shell.
[0021] Through the above technical solution, by setting the pull ring, it is convenient for the operator to adjust the height of the two positioning blocks at a later time, so as to achieve the purpose of quickly separating and installing the pressure sensing shell and the pressure regulating shell.
[0022] In summary, this application includes the following beneficial technical effects: The present invention realizes the pressure regulation operation of the pressure boosting valve by automatic regulation, can perform corresponding regulation operation of the pressure range according to the pressure change of the fluid, increases the preset pressure range, can perform more operations when the inlet pressure increases, maintains the corresponding range value of the inlet pressure and the outlet pressure and automatically adjusts the operation, ensures that the mechanism can meet the rebound sheet balancing operation and the increase or decrease operation of the inlet cavity when the inlet pressure changes during use, and adjusts the outlet pressure of the mechanism in real time and adaptively, thereby implementing overall protection operation for the structure; The internal structure of the present invention is relatively simple. Through the cooperation between the fixing ring, the two positioning blocks, the two pull rods and the pull ring, the product can be disassembled for internal maintenance and component replacement, thereby achieving the purpose of improving the stability of the product during use. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] Figure 1 This is a schematic diagram of the overall structure of this application; Figure 2 A side perspective view of the present application; Figure 3 A cutaway perspective view of the present application; Figure 4 For this application Figure 3 A magnified view of the structure at center; Figure 5 For this application Figure 3 A magnified view of the structure at B in the middle; Figure 6 A partially cutaway perspective view of the present application; Figure 7 This is a three-dimensional diagram of the sliding limit channel of the present application; Figure 8 This is a sectional stereoscopic view of the control box of this application.
[0024] Description of the numbers in the figure: 1. Pressure regulating shell; 2. Pressure sensing shell; 3. Shrapnel; 4. Pressure sensing chamber; 5. Shell; 6. Liquid inlet; 7. Liquid outlet; 8. Liquid outlet connecting sleeve; 9. Channel opening and closing shell; 10. Passage frame; 11. Liquid inlet chamber; 12. Pressure relief liquid outlet chamber; 13. Pressure balance pipe; 14. Control box; 15. Motor; 16. Controller; 17. Pressure receiver; 18. Screw; 19. Sliding limit channel; 20. Thread block ; 21. Sliding connecting rod; 22. Upper pressure plate; 23. Pressure receiving plate; 24. Lower pressure plate; 25. Connecting rod; 26. Sleeve; 27. Spring one; 28. Deformation pressure sensor; 29. Inspection and maintenance plugging head; 30. Connecting block; 31. Spring two; 32. Blocking sleeve; 33. Lifting rod; 34. Sealing ring; 35. Fixed ring; 36. Positioning block; 37. Spring three; 38. Pull rod; 39. Pull ring. DETAILED DESCRIPTION
[0025] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application; obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application without making creative work are within the scope of protection of the present application.
[0026] In the description of the present application, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present application. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.
[0027] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "set / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.
[0028] Example: The present application embodiment discloses a mountain tunnel drainage channel pressure relief mechanism, please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 8 , comprising a pressure regulating shell 1, a pressure reducing mechanism is provided inside the pressure regulating shell 1, and the pressure reducing mechanism extends to the outside of the pressure regulating shell 1; The decompression mechanism includes a pressure sensing shell 2, which is threadedly sleeved on the outer side of the bottom of the pressure regulating shell 1, and a spring piece 3 is fixedly embedded in the pressure sensing shell 2, and a pressure sensing chamber 4 is provided between the spring piece 3 and the pressure sensing shell 2. A shell 5 is installed at the bottom of the pressure sensing shell 2, and a liquid inlet 6 and a liquid outlet 7 are respectively provided on both sides of the shell 5. Liquid outlet connecting sleeves 8 are fixedly connected on both sides of the shell 5, and a channel opening and closing shell 9 is installed at the bottom of the shell 5. A passage frame 10 is fixedly embedded in the shell 5, and a liquid inlet chamber 11 is opened in the passage frame 10. A decompression liquid outlet chamber 12 is opened in one side of the passage frame 10, and the decompression liquid outlet chamber 12 is connected to the liquid inlet chamber 11. A pressure balance pipe 13 is fixedly embedded on the inner side of the top of the shell 5, and the bottom end of the pressure balance pipe 13 is located on one side of the decompression liquid outlet chamber 12; See also Figure 3 and Figure 8An automatic adjustment component is provided on the outside of the pressure balance pipe 13, and the automatic adjustment component includes a control box 14, which is installed on the top of the pressure regulating shell 1, and a motor 15, a controller 16 and a pressure receiver 17 are embedded in the control box 14. The motor 15 is located between the controller 16 and the pressure receiver 17, and the output shaft of the motor 15 is fixedly connected with a screw 18. A sliding limit channel 19 is fixedly connected to the bottom inner wall of the pressure regulating shell 1, and the bottom end of the screw 18 extends to the inside of the sliding limit channel 19. Two limit grooves are provided in the sliding limit channel 19. By arranging the motor 15, the controller 16 and the pressure receiver 17, the opening state of the liquid inlet cavity 11 can be adjusted accordingly according to the size of the liquid inlet pressure inside the shell 5; See also Figure 3 , Figure 4 and Figure 7 The two limit grooves are symmetrically arranged with the center line of the sliding limit channel 19 as the axis. The outer wall of the screw rod 18 is screwed with a threaded block 20. The two sides of the threaded block 20 extend to the inside of the two limit grooves respectively. The threaded blocks 20 are matched with the two limit grooves. The bottom of the threaded block 20 is fixedly connected with two sliding connecting rods 21. The bottom ends of the two sliding connecting rods 21 are fixedly connected with an upper pressing plate 22. The bottom of the upper pressing plate 22 is fixedly connected with a pressure receiving plate 23. The bottom of the pressure receiving plate 23 is provided with a lower pressing plate 24. By providing two limit grooves, the threaded block 20 can be further limited, so that the threaded block 20 can move up and down more smoothly and firmly. See also Figure 3 , Figure 6 , Figure 7 and Figure 8 , the pressure receiving plate 23 and the inner side of the lower pressing plate 24 are respectively fixedly connected with a plurality of connecting rods 25 and a plurality of sleeves 26, the plurality of sleeves 26 are respectively sleeved on the outer side of the bottom ends of the plurality of connecting rods 25, and a spring 27 is fixedly connected between the plurality of connecting rods 25 and the plurality of sleeves 26, the bottom of the lower pressing plate 24 is in contact with the top of the spring piece 3, a deformation pressure sensor 28 is installed at the bottom of the pressure receiving plate 23, and a telescopic pressure measuring spring piece 3 is arranged at the top and bottom of the deformation pressure sensor 28, the deformation pressure sensor 28 is connected to the pressure receiver 17 through a wire, the pressure receiver 17 is connected to the controller 16 through a wire, and the controller 16 is connected to the motor 15 through a wire, by setting a plurality of springs 27, the overall flexibility of the structure during use can be enhanced, so that the overall effect during use can be better, and at the same time, by setting a pressure sensor, the liquid inlet pressure inside the shell 5 can be monitored in real time; See also Figure 2 and Figure 3The bottom of the channel opening and closing shell 9 is installed with a maintenance plugging head 29 through a threaded connection, and the top of the maintenance plugging head 29 is fixedly connected with a connecting block 30, and the top of the connecting block 30 is fixedly connected with a spring 2 31, and the top of the spring 2 31 is fixedly connected with a plugging sleeve 32, and the plugging sleeve 32 matches the passage frame 10, and the top of the plugging sleeve 32 is fixedly connected with a lifting rod 33, and the top of the lifting rod 33 passes through the top center position of the shell 5 and contacts the bottom of the spring 3. By setting the spring 2 31, the height of the plugging sleeve can be adjusted according to the size of the liquid inlet pressure inside the shell 5; See also Figure 2 , Figure 3 and Figure 4 , a sealing ring 34 is fixedly embedded in the pressure sensing shell 2, and the top of the sealing ring 34 is tightly fitted with the bottom of the pressure regulating shell 1. A fixing ring 35 is fixedly sleeved on the outside of the pressure regulating shell 1. Two connecting grooves are provided inside the fixing ring 35. Two positioning grooves are provided on the top of the pressure sensing shell 2. The two positioning grooves and the two connecting grooves are symmetrically arranged with the center lines of the pressure sensing shell 2 and the fixing ring 35 as the axis. Positioning blocks 36 are embedded in the two positioning grooves. Springs three 37 are fixedly connected to the tops of the two positioning blocks 36. Pull rods 38 are fixedly connected to the tops of the two springs three 37. Pull rings 39 are fixedly connected to the tops of the two pull rods 38. The two springs three 37 and the two pull rods 38 are respectively embedded in the two connecting grooves. The pull ring 39 is located at the top of the pressure sensing shell 2. By arranging the sealing ring 34, the sealing between the pressure sensing shell 2 and the pressure regulating shell 1 can be strengthened, thereby making the use efficiency higher. At the same time, by arranging the pull ring 39, it is convenient for the operator to adjust the height of the two positioning blocks 36 later, so as to quickly split and install the pressure sensing shell 2 and the pressure regulating shell 1.
[0029] The implementation principle of this embodiment is as follows: after the power is turned on, the preset pressure range value is adjusted through the control display on the top of the control box 14, the controller 16 drives the motor 15 to start, and then the output shaft of the motor 15 will drive the screw 18 to rotate clockwise, and the screw 18 drives the threaded block 20 to move vertically downward in the sliding limit channel 19. As the threaded block 20 moves downward, the sliding connecting rod 21 drives the upper pressure plate 22, the pressure receiving plate 23, multiple connecting rods 25, multiple springs 27, multiple sleeves 26 and the lower pressure plate 24 to move downward. According to the size of the preset pressure range value, the bottom of the lower pressure plate 24 applies pressure to the rebound sheet 3 through the rebound force of multiple springs 27. At this time, the rebound sheet 3 in the upward bending state moves downward, and drives the lifting rod 33 to move downward during the downward movement. When the preset pressure range value is reached, the motor 15 stops rotating. At this time, the bottom of the liquid inlet chamber 11 is opened. According to the preset pressure, it is in a half-open or fully-open state, and then the liquid will enter the liquid inlet chamber 11 through the liquid inlet 6, and be discharged from the liquid outlet 7 through the pressure-reducing liquid outlet chamber 12. In the process of discharging the liquid, the high-pressure liquid will enter the pressure sensing chamber 4 through the pressure-balancing connecting pipe, and the rebound sheet 3 will be compressed according to the liquid inlet pressure. When the liquid inlet pressure is less than or equal to the middle value of the preset pressure range, the rebound sheet 3 will not be deformed. At this time, the bottom of the deformation pressure sensor 28 is not in contact with the top of the lower pressure plate 24, and the pressure receiver 17 does not receive the pressure information. At this time, the motor 15 drives the screw 18 to rotate clockwise and drives the lower pressure plate 24 to move downward. In the process of the lower pressure plate 24 moving downward, the pressure change information of the deformation pressure sensor 28 is monitored by the pressure receiver 17. When the pressure receiver 17 receives obvious pressure increase information, the motor 15 is turned off; When the liquid inlet pressure is greater than the middle value of the preset pressure range, the rebound sheet 3 will bend upward, and during the bending process, the multiple springs 27 will be squeezed, so that the multiple springs 27 are in a contracted state, driving the lower pressure plate 24 to contact the bottom of the deformation pressure sensor 28, and monitoring the pressure change information of the deformation pressure sensor 28 through the pressure receiver 17, and starting the motor 15 to drive the screw 18 to rotate counterclockwise, so that the threaded block 20 drives the lower pressure plate 24 to move upward. When no pressure is generated at the bottom of the deformation pressure sensor 28, the motor 15 will stop working. At this time, the lifting rod 33 moves upward, and the opening of the liquid inlet chamber 11 will become smaller as it closes, and the pressure on the side of the liquid outlet 7 is reduced. On the contrary, when the pressure received at the bottom of the deformation pressure sensor 28 is greater than the preset pressure range, the motor 15 starts, driving the lower pressure plate 24 to return to its initial position, and the liquid inlet chamber 11 will be in a closed state.
[0030] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.
Claims
1. A mountain tunnel drainage channel pressure reducing mechanism, comprising a pressure regulating shell (1), characterized in that: A pressure reducing mechanism is provided inside the pressure regulating shell (1), and the pressure reducing mechanism extends to the outside of the pressure regulating shell (1); The pressure reducing mechanism comprises a pressure sensing shell (2), the pressure sensing shell (2) being threadedly sleeved on the outside of the bottom of the pressure regulating shell (1), a spring sheet (3) being fixedly embedded inside the pressure sensing shell (2), a pressure sensing cavity (4) being provided between the spring sheet (3) and the pressure sensing shell (2), a shell (5) being installed at the bottom of the pressure sensing shell (2), a liquid inlet (6) and a liquid outlet (7) being provided on both sides of the shell (5), a liquid outlet connecting sleeve (8) being fixedly connected to both sides of the shell (5), and a pressure inlet (6) and a liquid outlet (7) being provided on the bottom of the shell (5). A channel opening and closing shell (9) is provided, a channel frame (10) is fixedly embedded inside the shell (5), a liquid inlet cavity (11) is provided inside the channel frame (10), a decompression liquid outlet cavity (12) is provided inside one side of the channel frame (10), the decompression liquid outlet cavity (12) is communicated with the liquid inlet cavity (11), a pressure balance pipe (13) is fixedly embedded inside the top of the shell (5), the bottom end of the pressure balance pipe (13) is located on one side of the decompression liquid outlet cavity (12), and an automatic adjustment component is provided on the outside of the pressure balance pipe (13).
2. A mountain tunnel drainage channel pressure relief mechanism according to claim 1, characterized in that: The automatic adjustment component comprises a control box (14), the control box (14) being mounted on the top of the pressure adjustment shell (1), a motor (15), a controller (16) and a pressure receiver (17) being embedded in the control box (14), and the motor (15) being located between the controller (16) and the pressure receiver (17).
3. A mountain tunnel drainage channel pressure relief mechanism according to claim 2, characterized in that: The output shaft of the motor (15) is fixedly connected to a screw rod (18), the bottom inner wall of the pressure regulating shell (1) is fixedly connected to a sliding limit channel (19), the bottom end of the screw rod (18) extends into the interior of the sliding limit channel (19), and two limit grooves are provided in the interior of the sliding limit channel (19).
4. A mountain tunnel drainage channel pressure relief mechanism according to claim 3, characterized in that: The two limit grooves are symmetrically arranged with the center line of the sliding limit channel (19) as the axis, and a threaded block (20) is screwed onto the outer wall of the screw rod (18). Both sides of the threaded block (20) extend into the inside of the two limit grooves respectively, and the threaded blocks (20) are matched with the two limit grooves.
5. A mountain tunnel drainage channel pressure relief mechanism according to claim 4, characterized in that: The bottom of the threaded block (20) is fixedly connected to two sliding connecting rods (21), the bottom ends of the two sliding connecting rods (21) are fixedly connected to an upper pressing plate (22), the bottom of the upper pressing plate (22) is fixedly connected to a pressure receiving plate (23), and the bottom of the pressure receiving plate (23) is provided with a lower pressing plate (24).
6. A mountain tunnel drainage channel pressure relief mechanism according to claim 5, characterized in that: The pressure receiving plate (23) and the inner side of the lower pressure plate (24) are respectively fixedly connected with a plurality of connecting rods (25) and a plurality of sleeves (26); the plurality of sleeves (26) are respectively sleeved on the outer sides of the bottom ends of the plurality of connecting rods (25); a spring 1 (27) is fixedly connected between the plurality of connecting rods (25) and the plurality of sleeves (26); and the bottom of the lower pressure plate (24) is in contact with the top of the spring sheet (3).
7. A mountain tunnel drainage channel pressure relief mechanism according to claim 5, characterized in that: A deformation pressure sensor (28) is installed at the bottom of the pressure receiving plate (23), and a retractable pressure measuring spring piece (3) is arranged at the top and bottom of the deformation pressure sensor (28). The deformation pressure sensor (28) is connected to the pressure receiver (17) via a wire, the pressure receiver (17) is connected to the controller (16) via a wire, and the controller (16) is connected to the motor (15) via a wire.
8. A mountain tunnel drainage channel pressure relief mechanism according to claim 1, characterized in that: The bottom of the channel opening and closing shell (9) is installed with a maintenance and repair plugging head (29) through a threaded connection, and the top of the maintenance and repair plugging head (29) is fixedly connected to a connecting block (30), and the top of the connecting block (30) is fixedly connected to a spring 2 (31), and the top of the spring 2 (31) is fixedly connected to a plugging sleeve (32), and the plugging sleeve (32) matches the passage frame (10). The top of the plugging sleeve (32) is fixedly connected to a lifting rod (33), and the top of the lifting rod (33) passes through the top center position of the shell (5) and contacts the bottom of the spring (3).
9. A mountain tunnel drainage channel pressure relief mechanism according to claim 1, characterized in that: A sealing ring (34) is fixedly embedded inside the pressure sensing shell (2), the top of the sealing ring (34) is tightly fitted with the bottom of the pressure regulating shell (1), a fixing ring (35) is fixedly sleeved on the outside of the pressure regulating shell (1), two connecting grooves are provided inside the fixing ring (35), and two positioning grooves are provided on the top of the pressure sensing shell (2).
10. A mountain tunnel drainage channel pressure relief mechanism according to claim 9, characterized in that: The two positioning grooves and the two connecting grooves are symmetrically arranged with the center lines of the pressure sensing shell (2) and the fixing ring (35) as axes, and positioning blocks (36) are embedded in the two positioning grooves. The tops of the two positioning blocks (36) are fixedly connected to springs three (37), the tops of the two springs three (37) are fixedly connected to pull rods (38), and the tops of the two pull rods (38) are fixedly connected to pull rings (39). The two springs three (37) and the two pull rods (38) are embedded in the two connecting grooves, and the pull ring (39) is located at the top of the pressure sensing shell (2).