Anti-seepage pressure reducing valve for water conservancy project

Abstract

The invention relates to the technical field of anti-seepage pressure reducing valves, in particular to an anti-seepage pressure reducing valve for hydraulic engineering, which comprises a valve main body mechanism, a driving mechanism arranged on the valve main body mechanism and two groups of material changing mechanisms arranged on the valve main body mechanism, the multiple groups of transferring and impurity collecting mechanisms are arranged in the two groups of material changing mechanisms; the two groups of self-blocking mechanisms are arranged in the transferring and impurity collecting mechanisms; the valve body mechanism comprises an output end and an input end. The pipelines integrally arranged on the two sides of the valve body are arranged to be the output end and the input end of the spliced structure, and after the output end is fixed to the valve body and the input end is fixed to the external pipeline, the two anti-overflow rotating discs arranged between the input end and the output end can effectively assemble the assembled multiple sets of transferring and impurity collecting mechanisms; and at the moment, the multiple replaceable transferring and impurity collecting mechanisms can be rapidly replaced after a certain period of time, and therefore the problem that the valve body is clogged and corroded due to the fact that water flow carries garbage can be avoided.

Description

Technical Field

[0001] The invention relates to the technical field of anti-seepage pressure reducing valves, in particular to an anti-seepage pressure reducing valve for water conservancy projects. Background Art

[0002] With the gradual improvement of modern water conservancy systems, the anti-seepage performance of pressure reducing valves has been gradually improved. The hydraulic pressure reducing valve is a special device that automatically reduces the working pressure of the pipeline. It can reduce the higher water pressure of the pipeline before the valve to the required level of the pipeline after the valve. Pressure reducing valves are widely used in technical water supply of hydropower stations, high-rise buildings, areas with excessively high water pressure in urban water supply networks, mines and other occasions to ensure that each water point in the water supply system obtains appropriate service water pressure and flow.

[0003] However, the pressure reducing valves currently used in water conservancy projects still have certain drawbacks. The existing pressure reducing valves are directly installed with the input pipes and the output pipes, and are therefore affected by the garbage and waste entrained in the water flow. When factors such as the external ambient temperature of the pressure reducing valve suddenly change, the inside of the valve body is disturbed by the garbage and waste, which will cause a sudden drop in water pressure. In severe cases, it will cause blockage and rust inside the valve body. The damaged pressure reducing valve will increase the difficulty and risk of replacement due to the interference of local water pressure, and will be detrimental to the service life of the pressure reducing valve.

[0004] In view of this, an anti-seepage pressure reducing valve for water conservancy projects is designed to solve the above problems. Summary of the invention

[0005] The present invention aims to solve one of the technical problems existing in the prior art or related technology.

[0006] To this end, the technical solution adopted in the present invention is: A seepage-proof pressure-reducing valve for water conservancy projects, comprising a valve main body mechanism, a driving mechanism arranged on the valve main body mechanism, two groups of material changing mechanisms arranged on the valve main body mechanism, multiple groups of transfer and miscellaneous collection mechanisms arranged in the two groups of material changing mechanisms, and two groups of self-blocking mechanisms arranged in the transfer and miscellaneous collection mechanisms; the valve main body mechanism comprises an output end and an input end, and both the output end and the input end are provided with pre-installed grooves; the driving mechanism is used to provide self-changing kinetic energy for the two groups of material changing mechanisms; the material changing mechanism comprises two anti-overflow turntables arranged on the outer port of the output end and the inner port of the input end, and the inside of the anti-overflow turntable is provided with a plurality of evenly distributed assembly holes; the transfer and miscellaneous collection mechanism comprises a transfer tube arranged between the two anti-overflow turntables, two stabilization ducts arranged inside the transfer tube, and an inner tube arranged in the middle of the inner cavity of the transfer tube; the two groups of self-blocking mechanisms are arranged in the transfer tube for capturing garbage and waste in the water flow.

[0007] In a preferred example, the present invention can be further configured as follows: the self-blocking mechanism includes a truss fixedly installed in the inner tube, two insertion rods are arranged inside the truss, and a horizontal crossbar is installed at the outer end of the truss; The cross bar is movably provided with a first leaf door and a second leaf door; The first leaf door and the second leaf door are both equipped with cables, and the cables are adapted to pass through the slots inside the truss and bear pressure on the insertion rods; A reinforcing spring is provided between the cable and the raised end plate of the truss; The outer end of the cable is mounted on the wall of the stabilizing conduit.

[0008] In a preferred example, the present invention can be further configured as follows: the transfer and collection mechanism further includes a pressure detector disposed on the transfer tube, and the detection end in the pressure detector is adapted to penetrate into the interior of the inner tube; A filter element is installed in the middle of the inner tube; A pressure relief cover is arranged in a stabilization conduit near the output end; A plug is installed in the hole at the top of the transfer tube, and a pitch-adjusting wheel is arranged inside the plug.

[0009] In a preferred example, the present invention can be further configured as follows: the material changing mechanism further includes a shaft disposed inside the two anti-overflow rotating disks, and the outer ends of the anti-overflow rotating disks are provided with ring teeth; Second bearings are installed at both ends of the shaft; Two symmetrically distributed clamps are arranged outside the second bearing, and gaskets are arranged in the notches at the top ends of the clamps; The two clamps are adapted to be installed in the pre-installed grooves.

[0010] In a preferred example, the present invention can be further configured as follows: the valve body mechanism also includes a valve body installed in the middle of the two output ends and a valve core arranged in the valve body.

[0011] In a preferred example, the present invention can be further configured as follows: the driving mechanism includes a chassis arranged at the bottom of the valve body, and a motor arranged inside the chassis; Two symmetrically distributed outer frames are installed at the bottom of the valve body; A first bearing is installed at the outer end of the outer frame, and a linkage shaft is arranged inside the first bearing; The number of the linkage shafts is two, and the two linkage shafts are connected with transmission lines.

[0012] In a preferred example, the present invention can be further configured as follows: the outer frame is an L-shaped structure as a whole, and the outer frame is made of stainless steel material, and the surface of the outer frame is coated with an anti-rust paint layer; A gear is arranged at the bottom of the transmission shaft in the motor, and the gear is transmission-connected to the middle of the line.

[0013] In a preferred example, the present invention can be further configured as follows: the linkage shaft is composed of a vertical shaft, a top gear plate and a bottom gear plate, and the bottom gear plate is adapted to mesh with the tooth opening of the ring gear.

[0014] In a preferred example, the present invention can be further configured as follows: an anti-overflow rubber layer is provided on the end surface of the anti-overflow turntable where the ring teeth are provided, and an anti-rust paint layer is coated on the other end surface of the anti-overflow turntable.

[0015] In a preferred example, the present invention can be further configured as follows: the stabilization catheter is composed of a sleeve, a rack plate and a gasket.

[0016] By adopting the above technical solution, the beneficial effects achieved by the present invention are: 1. The present invention arranges the assembled pipes on both sides of the valve body as the output end and the input end of the splicing structure. When the output end is fixed to the valve body and the input end is fixed to the external pipe, the two anti-overflow turntables arranged between the input end and the output end can effectively assemble the assembled multiple sets of transfer and miscellaneous collection mechanisms. At this time, the replaceable multiple transfer and miscellaneous collection mechanisms can be quickly replaced after a certain period of time, thereby avoiding the problem of clogging and corrosion of the valve body caused by garbage and waste carried by water flow.

[0017] 2. The present invention arranges a transfer tube between the input end and the output end, and arranges two symmetrically distributed stabilizing ducts inside the transfer tube, so that the quickly replaceable transfer tube can be accurately docked with the input end and the output end, and the two stabilizing ducts can quickly clamp and seal it. At this time, the new pressure reducing valve can provide an effective flow control platform for the water conservancy pipeline, and after replacement is required, it can cooperate with the self-blocking mechanism to effectively collect and gather garbage and waste in the water flow.

[0018] 3. The present invention arranges an inner tube inside the transfer tube, arranges a pressure detector at the bottom of the transfer tube, and extends the end of the pressure detector into the middle of the inner tube. The system is used to monitor and pre-tighten the output data of the pressure detector in real time, thereby ensuring that the pressure reducing valve can accurately monitor each section of the water conservancy pipeline. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the present invention when used; Figure 2 It is a bottom view schematic diagram of the present invention; Figure 3 It is a schematic diagram of the valve main body mechanism of the present invention; Figure 4 For the present invention Figure 3 The enlarged schematic diagram of point A in the middle; Figure 5 For the present invention Figure 3 The enlarged schematic diagram of point B in the middle; Figure 6 It is a partial schematic diagram of the present invention; Figure 7 It is an exploded schematic diagram of the material changing mechanism of the present invention; Figure 8 It is a schematic diagram of the transfer and collection mechanism of the present invention; Fig. 9 For the present invention Figure 8 Internal schematic diagram of Fig.10 is a cross-sectional schematic diagram of the inner tube and the stabilization catheter of the present invention; Fig.11 For the present invention Fig.10 The enlarged schematic diagram of the center C; Fig.12 It is a schematic diagram of the self-blocking mechanism of the present invention; Fig.13 For the present invention Fig.12 Schematic diagram of the explosion.

[0020] Reference numerals: 100, valve main body; 110, valve body; 120, valve core; 130, output end; 140, input end; 150, pre-installed groove; 200, driving mechanism; 210, chassis; 220, motor; 230, outer frame; 240, first bearing; 250, linkage shaft; 260, line; 300, material changing mechanism; 310, anti-overflow turntable; 320, ring gear; 330, shaft; 340, second bearing; 350, fixture; 360, gasket; 370, assembly hole; 400, transfer and collection mechanism; 410, transfer pipe; 420, plug; 430, pitch-adjusting wheel; 440, pressure detector; 450, inner pipe; 460, stabilization duct; 470, pressure relief cover; 480, filter element; 500, self-blocking mechanism; 510, truss; 520, plug rod; 530, reinforcing spring; 540, cable; 550, cross bar; 560, first leaf door; 570, second leaf door. DETAILED DESCRIPTION

[0021] To make the purpose, technical solution and advantages of the present invention more clear, the present invention is further described in detail below in combination with specific implementations and with reference to the accompanying drawings. It should be noted that the embodiments of the present invention and the features in the embodiments can be combined with each other without conflict.

[0022] It is to be understood that these descriptions are exemplary only and are not intended to limit the scope of the invention.

[0023] An anti-seepage pressure reducing valve for water conservancy projects provided by some embodiments of the present invention will be described below in conjunction with the accompanying drawings. Embodiment 1:

[0024] Combination Figure 1-Figure 13 As shown, the present invention provides an anti-seepage pressure reducing valve for water conservancy projects, comprising a valve main body mechanism 100, a driving mechanism 200 arranged on the valve main body mechanism 100, two sets of material changing mechanisms 300 arranged on the valve main body mechanism 100, multiple sets of transfer and debris collecting mechanisms 400 arranged in the two sets of material changing mechanisms 300, and two sets of self-blocking mechanisms 500 arranged in the transfer and debris collecting mechanisms 400, the valve main body mechanism 100 is used to control the flow of the water conservancy pipeline, the driving mechanism 200 is used to provide self-replacement kinetic energy for the two sets of material changing mechanisms 300, the material changing mechanism 300 is used to provide a platform for rapid replacement for the multiple sets of transfer and debris collecting mechanisms 400, the multiple sets of transfer and debris collecting mechanisms 400 are used to quickly replace and remove impurities from the valve main body mechanism 100, and the self-blocking mechanism 500 is used to collect garbage and waste accumulated in the transfer and debris collecting mechanisms 400 and to dredge the water flow.

[0025] The valve body mechanism 100 includes an output end 130 and an input end 140, and the output end 130 and the input end 140 are both provided with a pre-installed groove 150, a valve body 110 installed in the middle of the two output ends 130, and a valve core 120 disposed in the valve body 110; The material changing mechanism 300 includes two overflow prevention turntables 310 disposed on the outer port of the output end 130 and the inner port of the input end 140, and a plurality of evenly distributed assembly holes 370 are opened inside the overflow prevention turntables 310; The transfer and collection mechanism 400 includes a transfer tube 410 disposed between two anti-overflow turntables 310, two stabilization conduits 460 disposed inside the transfer tube 410, and an inner tube 450 disposed in the middle of the inner cavity of the transfer tube 410, and a pressure detector 440 disposed on the transfer tube 410, and the detection terminal in the pressure detector 440 is adapted to penetrate the interior of the inner tube 450; A filter element 480 is installed in the middle of the inner tube 450; A pressure relief cover 470 is disposed in a stabilization conduit 460 near the output end 130; A plug 420 is installed in the hole at the top of the transfer tube 410, and a pitch-adjusting wheel 430 is arranged inside the plug 420; The stabilization duct 460 is composed of a sleeve, a rack plate and a gasket. Two sets of self-blocking mechanisms 500 are arranged in the transfer pipe 410 to capture garbage and waste in the water flow at the same time.

[0026] After the pressure reducing valve for water conservancy projects is directly fixed to the pipeline, after a long period of use, the sealing gasket between the end pipe of the valve body and the external pipeline will be accelerated to age and corrode due to the interference of garbage, waste and impurities. At the same time, the environmental factors and temperature outside the valve body will cause additional corrosion to the valve body. As the use time increases, the output pressure of this pressure reducing valve will become unstable, and the abnormal pressure will further cause blockage by foreign matter.

[0027] The new pressure reducing valve needs to close the external pipeline before use, and then use bolts to connect the two input ends 140 with the two external pipelines, until the two sets of anti-overflow turntables 310 control the two sets of transfer and collection mechanisms 400 to effectively connect the two sets of output ends 130 and input ends 140, and then the valve body can provide an effective passage for the external pipeline, and then open the valve core 120; Then, the two adjustable distance wheels 430 in the two transfer and collection mechanisms 400 are adjusted. As the two symmetrically distributed stabilizing ducts 460 are stretched outward under force, the two stabilizing ducts 460 are accurately inserted into the output end 130 and the input end 140. At this time, the passage can provide a sealed cavity for the transfer of water flow. As the two stabilizing ducts 460 extend outward, the two pulled cables 540 will pull the first leaf door 560 and the second leaf door 570 in the opposite direction to shrink. At this time, the sealed cavity can transport the water flow, and finally the garbage and waste entrained in the water flow can be gathered by the filter element 480. After a certain period of use, the two stabilizing ducts 460 that have been reset by the adjustable pitch wheel 430 will shrink toward the inside of the transfer tube 410. At this time, the two sets of first leaf doors 560 and second leaf doors 570 can block the two stabilizing ducts 460, thereby preventing the garbage from flowing back and overflowing due to residual pressure. Embodiment 2:

[0028] Combination Figure 3 and Figure 8 As shown, based on the embodiment 1, the driving mechanism 200 includes a chassis 210 disposed at the bottom of the valve body 110, and a motor 220 disposed inside the chassis 210; Two symmetrically distributed outer frames 230 are installed at the bottom of the valve body 110; A first bearing 240 is installed at the outer end of the outer frame 230 , and a linkage shaft 250 is disposed inside the first bearing 240 .

[0029] Preferably, the chassis 210 provides effective energy for the motor 220 and controls the start and stop of the chassis 210 through the system. When the motor 220 is started, the system will also measure the real-time water pressure in the inner tube 450 through the pressure detector 440, and pre-tighten the system to quickly prompt the staff.

[0030] There are two linkage shafts 250, and the two linkage shafts 250 are transmission-connected with lines 260; The outer frame 230 is an L-shaped structure as a whole, and is made of stainless steel, and the surface of the outer frame 230 is coated with an anti-rust paint layer; A gear is provided at the bottom of the transmission shaft in the motor 220, and the gear is transmission-connected to the middle of the line 260; The linkage shaft 250 is composed of a vertical shaft, a top gear plate and a bottom gear plate, and the bottom gear plate is adapted to mesh with the tooth opening of the ring gear 320 .

[0031] Preferably, the two outer frames 230 are fixedly installed on the bottom of the valve body 110 by bolts, and the first bearing 240 arranged in the two outer frames 230 can provide sufficient compressive auxiliary bearing pressure for the linkage shaft 250. At this time, the two linkage shafts 250 in the linkage state can drive the combined anti-overflow turntable 310 and the ring gear 320 in an orderly and stable manner. Embodiment 3:

[0032] Combination Figure 3-Figure 7 As shown, based on the embodiment 1, the material changing mechanism 300 further includes a shaft 330 disposed inside the two overflow prevention rotating disks 310, and the outer ends of the overflow prevention rotating disks 310 are provided with ring gears 320; Second bearings 340 are installed at both ends of the shaft 330; Two symmetrically distributed clamps 350 are disposed outside the second bearing 340 , and a gasket 360 is disposed in a notch at the top of the clamp 350 .

[0033] Preferably, two second bearings 340 are provided at both ends of the shaft 330. When the external pipeline wall is installed, the two anti-overflow turntables 310 without the transfer and collection mechanism 400 can rotate freely along the ports of the output end 130 and the input end 140. At this time, the two idle anti-overflow turntables 310 can be inspected and maintained for the inner walls of the output end 130 and the input end 140 through multiple evenly distributed assembly holes 370.

[0034] Two clamps 350 are adapted to be installed in the pre-installed groove 150; An anti-overflow rubber layer is arranged on the end surface of the ring gear 320 outside the anti-overflow turntable 310, and an anti-rust paint layer is coated on the other end surface of the anti-overflow turntable 310.

[0035] Preferably, the anti-overflow turntable 310 is provided with a rubber layer on the end surface of the ring tooth 320 adapted to fit the outer end of the output end 130 or the inner end of the input end 140. As the anti-overflow turntable 310 rotates, the rubber layer can prevent the overflow of water in the pipeline under pressure. Embodiment 4:

[0036] Combination Figure 8-Figure 13 As shown, in the above embodiment, the self-blocking mechanism 500 includes a truss 510 fixedly installed in the inner tube 450, two insertion rods 520 are arranged inside the truss 510, and a horizontal cross bar 550 is installed at the outer end of the truss 510.

[0037] Preferably, the two trusses 510 are fixedly mounted on the inner walls at both ends of the inner tube 450. At this time, the outer ends of the trusses 510 can provide a pressure-bearing support platform for the cross bar 550. At this time, the first leaf door 560 and the second leaf door 570 movably mounted on the cross bar 550 can be controlled by the stabilizing duct 460 through two cables 540, and ultimately the garbage and waste entrained in the water flow can be effectively collected.

[0038] A first leaf door 560 and a second leaf door 570 are movably mounted on the crossbar 550; The first leaf door 560 and the second leaf door 570 are both equipped with a cable 540, and the cable 540 is adapted to penetrate through the slot inside the truss 510 and bear pressure on the insertion rod 520; A reinforcing spring 530 is provided between the cable 540 and the raised end plate of the truss 510; The outer end of the cable 540 is mounted on the wall of the stabilization catheter 460 .

[0039] Preferably, the two reinforcing springs 530 are under pressure on the end plates of the truss 510, and a gasket is provided at the end of the cable 540 close to the first leaf door 560 or the second leaf door 570, and the gasket is pressed against the other end of the reinforcing spring 530. As the cable 540 is pulled, the gasket can compress the reinforcing spring 530. After a certain period of use, the two reinforcing springs 530 can prompt the first leaf door 560 and the second leaf door 570 to seal the inner cavity of the stabilization duct 460, and finally press against the gasket ring. At this time, the stored garbage and waste can be prevented from overflowing.

[0040] Working principle and use process of the present invention: The hydraulic pressure reducing valve is one of the indispensable and important components in the hydraulic pipeline. It is a throttling element with variable local resistance. By changing the throttling area, the flow velocity and the kinetic energy of the fluid are changed, resulting in different pressure losses, thereby achieving the purpose of pressure reduction; However, there are many disadvantages in the current application of pressure reducing valves. When the pressure reducing valve is connected to the input pipeline and the output pipeline, the pressure inside the pressure reducing valve will be abnormal due to the influence of garbage and waste carried by the water flow in the pipeline. As the pressure decreases, the valve body will rust and corrode due to the blockage of foreign matter, which will cause corrosion of the seals and other problems, and eventually cause the pressure reducing valve to leak. After the two input ends 140 of the device are connected to the input pipeline and the output pipeline, two transfer and collection mechanisms 400 arranged in the two anti-overflow turntables 310 will accurately dock the two output ends 130 and the input end 140, and then adjust the distance regulating wheel 430 until the gear at the bottom drives the two stabilizing conduits 460 to extend in opposite directions at the same speed, and finally the two stabilizing conduits 460 can penetrate the inner cavity of the output end 130 and the input end 140 respectively. At this time, the new valve can provide an effective transfer passage for the water conservancy pipeline; When the valve core 120 rotates to open the valve body 110, the two transfer and collection mechanisms 400 in the passage can effectively collect garbage and waste in the water flow of the pipeline. After the two transfer and collection mechanisms 400 capture and collect garbage and waste in the water flow within a certain period of time, when the water pressure passing through the inner cavity of the inner tube 450 is disturbed by the garbage and waste and causes the pressure to drop, the pressure detector 440 extends into the inner cavity of the inner tube 450 to measure the pressure in real time, and the sudden pressure drop data is uploaded to the system to obtain an effective pre-tightening prompt, and then the worker controls the pitch-adjusting wheel 430 to rotate in the opposite direction until the two stabilization conduits 460 shrink inward and reset to the inner cavity of the transfer tube 410; As the two stabilizing catheters 460 are drawn toward the inner cavity of the transfer tube 410, the two cables 540 arranged on the wall of the stabilizing catheter 460 will be relaxed. At this time, the first leaf door 560 and the second leaf door 570, pushed by the strong pressure of the two reinforcing springs 530, can be closed toward the wall of the stabilizing catheter 460 until a circular structure is formed. Finally, the first leaf door 560 and the second leaf door 570 formed into a circular structure can effectively fit the gasket pre-pressed on the wall of the stabilizing catheter 460. At this time, the garbage collected during the timed infusion can be uniformly drawn by the sealing structure formed by the two sets of first leaf doors 560, the second leaf door 570 and the transfer tube 410. By controlling the motor 220 through the system, the transmission shaft in the motor 220 will drive the line 260, and the two ends of the line 260 can jointly drive the two linkage shafts 250. With the same speed rotation of the two linkage shafts 250 and the pressure-bearing of the transfer and collection mechanism 400, the two anti-overflow turntables 310 can be driven to rotate, and a group of transfer and collection mechanisms 400 storing garbage and waste can be transferred out. With the fit of the two anti-overflow turntables 310 to the external port of the output end 130 and the internal port of the input end 140, the overflow of water can be effectively reduced, and the remaining transfer and collection mechanisms 400 can be selectively installed on the assembly positions of the output end 130 and the input end 140. Then, the distance regulating wheel 430 in the newly installed group of transfer and collection mechanisms 400 can be adjusted again until the two stabilization ducts 460 are reinserted into the output end 130 and the input end 140. At this point, the device can be highly adaptable to different water pipelines.

[0041] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. An anti-seepage pressure reducing valve for water conservancy projects, comprising a valve main body mechanism (100), characterized in that: It also includes a driving mechanism (200) arranged on the valve main body mechanism (100), two sets of material changing mechanisms (300) arranged on the valve main body mechanism (100), a plurality of sets of transfer and miscellaneous collection mechanisms (400) arranged in the two sets of material changing mechanisms (300), and two sets of self-blocking mechanisms (500) arranged in the transfer and miscellaneous collection mechanisms (400); The valve main body mechanism (100) comprises an output end (130) and an input end (140), and both the output end (130) and the input end (140) are provided with a pre-installed groove (150); The driving mechanism (200) is used to provide self-replacing kinetic energy for the two sets of replacing mechanisms (300); The material changing mechanism (300) comprises two overflow prevention rotating disks (310) arranged on an outer port of the output end (130) and an inner port of the input end (140), and a plurality of evenly distributed assembly holes (370) are provided inside the overflow prevention rotating disks (310); The transfer and collection mechanism (400) comprises a transfer tube (410) arranged between two anti-overflow turntables (310), two stabilization conduits (460) arranged inside the transfer tube (410), and an inner tube (450) arranged in the middle of the inner cavity of the transfer tube (410); The two sets of self-blocking mechanisms (500) are arranged in the transfer pipe (410) and are used to capture garbage and waste in the water flow.

2. The anti-seepage pressure reducing valve for water conservancy projects according to claim 1, characterized in that: The self-blocking mechanism (500) comprises a truss (510) fixedly installed in the inner tube (450), two insertion rods (520) are arranged inside the truss (510), and a horizontal crossbar (550) is installed at the outer end of the truss (510); A first leaf door (560) and a second leaf door (570) are movably mounted on the crossbar (550); The first leaf door (560) and the second leaf door (570) are both installed with a cable (540), and the cable (540) is adapted to penetrate through a notch inside the truss (510) and bear pressure on the insertion rod (520); A reinforcing spring (530) is provided between the cable (540) and the raised end plate of the truss (510); The outer end of the pull cable (540) is mounted on the wall of the stabilization catheter (460).

3. The anti-seepage pressure reducing valve for water conservancy projects according to claim 1, characterized in that: The transfer and collection mechanism (400) further comprises a pressure detector (440) arranged on the transfer tube (410), and a detection end in the pressure detector (440) is adapted to penetrate into the interior of the inner tube (450); A filter element (480) is installed in the middle of the inner tube (450); A pressure relief cover (470) is provided in a stabilization conduit (460) close to the output end (130); A plug (420) is installed in the hole at the top of the transfer tube (410), and a pitch-adjusting rotating wheel (430) is arranged inside the plug (420).

4. The anti-seepage pressure reducing valve for water conservancy projects according to claim 1, characterized in that: The material changing mechanism (300) further comprises a shaft (330) arranged inside the two anti-overflow rotating disks (310), and the outer ends of the anti-overflow rotating disks (310) are provided with ring teeth (320); Second bearings (340) are installed at both ends of the shaft rod (330); Two symmetrically distributed clamps (350) are arranged outside the second bearing (340), and a gasket (360) is arranged in a notch at the top of the clamp (350); The two clamps (350) are adapted to be installed in the pre-installed groove (150).

5. The anti-seepage pressure reducing valve for water conservancy projects according to claim 1, characterized in that: The valve main body mechanism (100) further comprises a valve body (110) installed in the middle of the two output ends (130) and a valve core (120) arranged in the valve body (110).

6. The anti-seepage pressure reducing valve for water conservancy projects according to claim 1, characterized in that: The driving mechanism (200) comprises a chassis (210) arranged at the bottom of the valve body (110), and a motor (220) arranged inside the chassis (210); Two symmetrically distributed outer frames (230) are installed at the bottom of the valve body (110); A first bearing (240) is installed at the outer end of the outer frame (230), and a linkage shaft (250) is arranged inside the first bearing (240); The number of the linkage shafts (250) is two, and the two linkage shafts (250) are transmission-connected with wires (260).

7. The anti-seepage pressure reducing valve for water conservancy projects according to claim 6, characterized in that: The outer frame (230) is in an L-shaped structure as a whole, and is made of a stainless steel material, and the surface of the outer frame (230) is coated with an anti-rust paint layer; A gear is provided at the bottom of the transmission shaft in the motor (220), and the gear is transmission-connected to the middle of the line (260).

8. The anti-seepage pressure reducing valve for water conservancy projects according to claim 6, characterized in that: The linkage shaft (250) is composed of a vertical shaft, a top gear plate and a bottom gear plate, and the bottom gear plate is adapted to mesh with the tooth opening of the ring gear (320).

9. The anti-seepage pressure reducing valve for water conservancy projects according to claim 1, characterized in that: An anti-overflow rubber layer is provided on the end surface of the anti-overflow rotating disk (310) on which the ring gear (320) is provided, and an anti-rust paint layer is coated on another end surface of the anti-overflow rotating disk (310).

10. The anti-seepage pressure reducing valve for water conservancy projects according to claim 1, characterized in that: The stabilizing catheter (460) is composed of a sleeve, a rack plate and a gasket.

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