Seepage-proofing and water-stopping structure for water conservancy project

Abstract

The invention discloses an anti-seepage water stop structure for a water conservancy project, and relates to the technical field of water conservancy projects. The first end and the second end of the intercepting plate are in sliding fit with the inner wall of the fixing frame in the first direction; the driving mechanism is used for driving the intercepting plate to slide in the first direction relative to the fixing frame; the air sealing mechanism comprises an air storage barrel and two air bags, the two air bags are installed at the first end and the second end of the intercepting plate respectively, and each air bag is located between the intercepting plate and the inner wall of the fixing frame; a piston in sliding fit with the air storage barrel in the first direction is arranged in the air storage barrel and connected with a piston rod, and the piston rod is fixedly connected with the intercepting plate. The piston divides the air storage barrel into two cavities, the cavity where the piston rod is located is a ventilation cavity, the other cavity is an air storage cavity, and each air bag is communicated with the air storage cavity. The intercepting plate can drive the piston rod to move synchronously while moving, the air bag is inflated or deflated, and the anti-seepage water stopping effect is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of water conservancy projects, and particularly to a seepage prevention and water stop structure for water conservancy projects. Background Technique

[0002] Water conservancy projects aim to control and allocate surface water and groundwater in nature to achieve the purpose of eliminating disasters and bringing benefits. As an indispensable precious resource for human production and life, the natural state of water resources often fails to meet the needs of human society. To effectively control water flow, prevent flood disasters, and achieve scientific regulation and reasonable distribution of water volume, and thus meet the water resource requirements of people's life and production, it is particularly necessary to build water conservancy projects. Through the construction of water conservancy projects, humans can utilize water resources more efficiently and ensure their service for the sustainable development of social economy.

[0003] The existing seepage prevention and water stop structure for water conservancy projects usually adopts the method of lifting gates. The two sides of the gate are slidably installed inside the sealing openings of the frame, and sealing strips are arranged on both sides of the frame for sealing to achieve the purpose of preventing water seepage. Although the above structure can prevent water seepage to a certain extent, due to the need to ensure the opening or closing of the gate, there will still be a certain gap between the gate and the sealing opening. When the water pressure is relatively high, water will seep out through the gap between the gate and the sealing opening, resulting in water seepage. Summary of the Invention

[0004] The purpose of the present invention is to provide a seepage prevention and water stop structure for water conservancy projects to solve the problems existing in the above-mentioned prior art and improve the seepage prevention and water stop effect.

[0005] To achieve the above purpose, the present invention provides the following solution:

[0006] The present invention provides a seepage prevention and water stop structure for water conservancy projects, including:

[0007] A fixed frame;

[0008] A cut-off plate, the first end and the second end of the cut-off plate are respectively slidably matched with the inner wall of the fixed frame along a first direction;

[0009] A driving mechanism, the driving mechanism is used to drive the cut-off plate to slide relative to the fixed frame along the first direction;

[0010] Air seal mechanism, the air seal mechanism includes an air storage barrel and two air bags respectively installed at the first end and the second end of the throttle plate, and each air bag is located between the throttle plate and the inner wall of the fixed frame; a piston slidably engaged with the air storage barrel along the first direction is arranged inside the air storage barrel, the piston is connected with a piston rod, and the piston rod is fixedly connected with the throttle plate; the piston divides the air storage barrel into two cavities, the cavity where the piston rod is located is the ventilation cavity, and the other cavity is the air storage cavity, the ventilation cavity is communicated with the outside air, and each air bag is communicated with the air storage cavity.

[0011] Preferably, the driving mechanism includes a driving motor, a driving bevel gear, a support frame, a transmission shaft, a fixed sleeve and a screw rod. The driving motor, the support frame and the fixed sleeve are respectively fixedly connected with the fixed frame. The axial direction of the fixed sleeve, the axial direction of the output shaft of the driving motor and the axial direction of the screw rod are respectively parallel to the first direction; the transmission shaft is rotatably installed on the support frame, and the axial direction of the transmission shaft is perpendicular to the first direction; the driving bevel gear is fixedly arranged on the output shaft of the driving motor, a first driven bevel gear meshing with the driving bevel gear is fixedly arranged at one end of the transmission shaft, and a second driven bevel gear is fixedly arranged at the other end; a third bevel gear meshing with the second driven bevel gear is rotatably installed on the fixed sleeve; one end of the screw rod is fixedly connected with the throttle plate, the screw rod passes through the fixed frame and the fixed sleeve, and the screw rod is respectively slidably engaged with the fixed frame and the fixed sleeve, and the screw rod is in threaded connection with the third bevel gear.

[0012] Preferably, the number of the transmission shafts, the support frames, the fixed sleeves and the screw rods is two and they correspond one by one; a fixed seat is fixedly connected to the support frame, and the air storage barrel is fixedly connected to the fixed seat.

[0013] Preferably, a first installation groove is arranged on the throttle plate corresponding to each air bag, and the air bag is installed in the corresponding first installation groove; the length direction of the first installation groove is parallel to the first direction.

[0014] Preferably, each air bag is communicated with the air storage cavity through a pipeline assembly. The pipeline assembly includes a first pipeline and a second pipeline. One end of the first pipeline is communicated with the air bag, and the other end is communicated with one end of the second pipeline. The other end of the second pipeline is communicated with the air storage barrel;

[0015] The first pipeline is made of a hard pipe, the second pipeline is made of a flexible pipe, and the first pipeline passes through the fixed frame and is slidably engaged with the fixed frame along the first direction.

[0016] Preferably, an exhaust port is arranged on the air storage barrel, and the ventilation cavity is communicated with the outside air through the exhaust port.

[0017] Preferably, a support seat is fixedly provided on the intercepting plate, and a plurality of ejector rods are fixedly provided on the support seat. One end of the ejector rod is fixedly connected to the support seat, and the other end is fixedly connected to the piston rod.

[0018] Preferably, a filter grille is installed corresponding to each of the air bags on the side of the intercepting plate for intercepting, and the filter grille is used to protect the corresponding air bag;

[0019] The intercepting plate is provided with a second installation groove corresponding to each of the filter grilles, and the fixed frame is provided with a second limiting sliding groove corresponding to each of the filter grilles. One end of the filter grille is fixedly connected to the corresponding second installation groove, and the other end is slidably matched with the corresponding second limiting sliding groove.

[0020] Preferably, first limiting sliding grooves are respectively provided on the inner wall of the fixed frame corresponding to the first end and the second end of the intercepting plate, and the first end and the second end of the intercepting plate are slidably matched with the corresponding first limiting sliding grooves.

[0021] Preferably, a plugging mechanism is further included. The plugging mechanism includes a limiting seat, a strip stone and a plurality of limiting rods. The limiting seat is fixedly installed at the bottom of the side of the intercepting plate for intercepting. The limiting seat is provided with a limiting hole corresponding to each of the limiting rods. The limiting rod slidably passes through the corresponding limiting hole. A limiting block is fixedly provided at the top end of the limiting rod, and the limiting block cannot pass through the limiting hole. The bottom end of the limiting rod is fixedly connected to the strip stone. A spring is sleeved on each of the limiting rods. The top end of the spring can abut against the limiting seat, and the bottom end can abut against the strip stone. A groove capable of conforming to the bottom of the strip stone is provided at the bottom of the fixed frame;

[0022] A convex strip is fixedly provided on the side of the strip stone close to the intercepting plate. The intercepting plate is provided with a third limiting sliding groove corresponding to the convex strip, and the convex strip is slidably matched with the corresponding third limiting sliding groove.

[0023] The present invention has achieved the following technical effects compared with the prior art:

[0024] The anti-seepage and water-stopping structure for water conservancy projects of the present invention makes the piston rod in the air storage barrel fixedly connected with the intercepting plate, and can drive the piston rod to move synchronously when the intercepting plate moves, so that the piston rod drives the piston to slide relative to the air storage barrel. When the intercepting plate moves downward, it drives the piston downward, and the piston can transport the air inside the barrel body to the inside of the airbag through the pipeline assembly, so that the airbag expands outward to seal the gap between the intercepting plate and the first limiting slide groove, and realizes the sealing between the intercepting plate and the first limiting slide groove, solving the problem of water seepage caused by poor sealing between the intercepting plate and the first limiting slide groove; when the intercepting plate moves upward, it drives the piston upward, and the piston can transport the air inside the airbag to the inside of the airbag through the pipeline assembly, so that the airbag shrinks, which is convenient for the intercepting plate to move upward.

[0025] Furthermore, the present invention arranges a filter grille on the side of the intercepting plate so that the intercepting plate can drive the filter grille to move synchronously, and the end of the filter grille away from the intercepting plate can slide along the inside of the second limiting slide groove. The filter grille filters impurities in the water to prevent the impurities from entering the inside of the first limiting slide groove, causing damage to the gap between the intercepting plate and the first limiting slide groove when the airbag is sealed. This not only improves the service life of the airbag, but also ensures the sealing performance of the airbag.

[0026] Furthermore, by arranging a sealing mechanism at the bottom of the side of the intercepting plate, the intercepting plate can drive the sealing mechanism downward when it moves downward. When the stone bar abuts against the groove, the intercepting plate continues to drive the limit seat downward, and then the limit seat will compress the spring, so that the stone bar can fit tightly with the groove at the bottom of the fixed frame under the push of each spring, so that the sealing mechanism can seal the bottom of the intercepting plate, thereby solving the problem of water seepage at the joint between the intercepting plate and the bottom of the gate. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0028] Figure 1 A three-dimensional diagram of the anti-seepage and water-stopping structure for water conservancy projects of the present invention;

[0029] Figure 2 It is a top view of the anti-seepage and water-stopping structure for water conservancy projects of the present invention;

[0030] Figure 3 yes Figure 2 Sectional view at AA in the middle;

[0031] Figure 4It is a perspective view of the driving mechanism in the anti-seepage and water-stopping structure for water conservancy projects of the present invention;

[0032] Figure 5 It is a perspective view of the fixed frame in the anti-seepage and water-stopping structure for water conservancy projects of the present invention;

[0033] Figure 6 It is a perspective view of the intercepting plate in the anti-seepage and water-stopping structure for water conservancy projects of the present invention;

[0034] Figure 7 It is an exploded view of the intercepting plate in the anti-seepage and water-stopping structure for water conservancy projects of the present invention;

[0035] Figure 8 It is a perspective view of the pipeline assembly in the anti-seepage and water-stopping structure for water conservancy projects of the present invention;

[0036] Figure 9 It is a perspective view of the plugging mechanism in the anti-seepage and water-stopping structure for water conservancy projects of the present invention;

[0037] Figure 10 It is Figure 5 a partial enlarged view of the B position in

[0038] In the figure: 1. Fixed frame; 11. Fixed sleeve; 12. Third driven bevel gear; 13. First limit chute; 14. Second limit chute; 15. Limit seat; 151. Limit hole; 17. Groove; 2. Intercepting plate; 20. Support seat; 21. First installation groove; 22. Second installation groove; 23. Third limit chute; 3. Driving mechanism; 31. Driving motor; 32. Driving bevel gear; 33. Support frame; 34. Transmission shaft; 35. Second driven bevel gear; 36. Screw; 4. Air storage barrel; 40. Fixed seat; 41. Piston; 42. Piston rod; 43. Exhaust port; 5. Plugging mechanism; 51. Block stone; 52. Limit rod; 53. Spring; 54. Ridge; 55. Limit block; 6. Filter grille; 7. Airbag; 8. Pipeline assembly; 81. First pipeline; 82. Second pipeline; 9. Jacking rod. Detailed implementation manners

[0039] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0040] The purpose of the present invention is to provide an anti-seepage and water-stopping structure for water conservancy projects to solve the problems existing in the above-mentioned prior art and improve the anti-seepage and water-stopping effect.

[0041] To make the above objects, features, and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0042] As Figures 1 to 10 shown, this embodiment provides a seepage prevention and water stop structure for water conservancy projects, including:

[0043] A fixed frame 1;

[0044] A cutoff plate 2, the first end and the second end of the cutoff plate 2 are respectively in sliding fit with the inner wall of the fixed frame 1 along a first direction;

[0045] A driving mechanism 3, the driving mechanism 3 is used to drive the cutoff plate 2 to slide relative to the fixed frame 1 along the first direction;

[0046] An air sealing mechanism, the air sealing mechanism includes an air storage barrel 4 and two air bags 7 respectively installed at the first end and the second end of the cutoff plate 2, and each air bag 7 is located between the cutoff plate 2 and the inner wall of the fixed frame 1; a piston 41 that slides in the air storage barrel 4 along the first direction is arranged inside the air storage barrel 4, the piston 41 is connected with a piston rod 42, and the piston rod 42 is fixedly connected with the cutoff plate 2; the piston 41 divides the air storage barrel 4 into two cavities, the cavity where the piston rod 42 is located is a ventilation cavity, and the other cavity is an air storage cavity, the ventilation cavity is communicated with the outside air, and each air bag 7 is communicated with the air storage cavity.

[0047] It should be noted that the first direction in this embodiment refers to the vertical direction, but in actual applications, the first direction is not necessarily the vertical direction. For example, it can also be an inclined direction. That is, in actual applications, technicians can determine and adjust the first direction according to actual needs.

[0048] In an alternative solution of this embodiment, preferably, a support seat 20 is fixedly arranged on the cutoff plate 2, and two ejector rods 9 are fixedly arranged on the support seat 20. One end of each ejector rod 9 is fixedly connected to the support seat 20, and the other end is fixedly connected to the piston rod 42. By arranging the support seat 20 at the top of the cutoff plate 2 and fixing the bottom end of the ejector rod 9 on the support seat 20. When the cutoff plate 2 moves upward, the cutoff plate 2 can drive the ejector rod 9 to move upward synchronously through the support seat 20. Conversely, when the cutoff plate 2 moves downward, the cutoff plate 2 can drive the ejector rod 9 to move downward synchronously through the support seat 20. Thus, the ejector rod 9 can move synchronously and in the same direction as the cutoff plate 2.

[0049] In an alternative solution of this embodiment, preferably, first limiting chutes 13 are respectively arranged on the inner wall of the fixed frame 1 corresponding to the first end and the second end of the cutoff plate 2, and the first end and the second end of the cutoff plate 2 are in sliding fit with the corresponding first limiting chutes 13.

[0050] In the anti-seepage and water-stop structure for water conservancy projects of this embodiment, by fixedly connecting the piston rod 42 to the cut-off plate 2, when the cut-off plate 2 slides, it can drive the ejector rod 9 to move longitudinally. While the ejector rod 9 moves, it drives the piston rod 42 to move synchronously, so that the piston rod 42 drives the piston 41 to move longitudinally along the central axis of the barrel. When the piston rod 42 drives the piston 41 to move downward, the piston 41 can transport the air inside the air storage chamber in the barrel to the inside of the airbag 7 through the pipeline assembly. At this time, the internal pressure of the airbag 7 increases, causing the airbag 7 to expand outward to seal the gap between the cut-off plate 2 and the first limit chute 13. This solves the problem of water seepage caused by the poor seal between the cut-off plate 2 and the first limit chute 13. When the piston rod 42 drives the piston 41 to move upward, a negative pressure state will appear inside the air storage chamber of the barrel. At this time, the high-pressure gas inside the airbag 7 will flow back to the inside of the air storage chamber through the pipeline assembly. At this time, the airbag 7 will shrink immediately, avoiding damage caused by friction between the airbag 7 and the side wall of the first limit chute 13 when the cut-off plate 2 rises, and also being able to reduce the resistance when the cut-off plate 2 rises, facilitating the upward movement of the cut-off plate 2.

[0051] In the alternative solution of this embodiment, preferably, as Figure 1 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 shown, a filter grille 6 is installed on the side of the cut-off plate 2 for water interception corresponding to each airbag 7. The filter grille 6 is used to protect the corresponding airbag 7; the cut-off plate 2 is provided with a second installation groove 22 corresponding to each filter grille 6, and the fixed frame 1 is provided with a second limit chute 14 corresponding to each filter grille 6. One end of the filter grille 6 is fixedly connected to the corresponding second installation groove 22, and the other end is slidably matched with the corresponding second limit chute 14.

[0052] By arranging the filter grille 6 on the side of the cut-off plate 2, the cut-off plate 2 can drive the filter grille 6 to move synchronously. At the same time, the end of the filter grille 6 away from the cut-off plate 2 can slide inside the second limit chute 14, so that the filter grille 6 filters the impurities in the water, avoiding impurities from entering the inside of the first limit chute 13 and causing damage when the airbag 7 seals the gap between the cut-off plate 2 and the first limit chute 13. This not only improves the service life of the airbag 7 but also ensures the sealing performance of the airbag 7.

[0053] In an alternative embodiment of the present embodiment, preferably, the driving mechanism 3 includes a driving motor 31, a driving bevel gear 32, a support frame 33, a transmission shaft 34, a fixed sleeve 11, and a screw 36. The driving motor 31, the support frame 33, and the fixed sleeve 11 are respectively fixedly connected to the fixed frame 1. The axial direction of the fixed sleeve 11, the axial direction of the output shaft of the driving motor 31, and the axial direction of the screw 36 are respectively parallel to the first direction. The transmission shaft 34 is rotatably installed on the support frame 33, and the axial direction of the transmission shaft 34 is perpendicular to the first direction. The driving bevel gear 32 is fixedly arranged on the output shaft of the driving motor 31. A first driven bevel gear meshing with the driving bevel gear 32 is fixedly arranged at one end of the transmission shaft 34, and a second driven bevel gear 35 is fixedly arranged at the other end. A third bevel gear meshing with the second driven bevel gear 35 is rotatably installed on the fixed sleeve 11. One end of the screw 36 is fixedly connected to the throttle plate 2. The screw 36 passes through the fixed frame 1 and the fixed sleeve 11, and the screw 36 is respectively slidably matched with the fixed frame 1 and the fixed sleeve 11. The screw 36 is threadedly connected to the third bevel gear.

[0054] In an alternative embodiment of the present embodiment, preferably, the number of the transmission shaft 34, the support frame 33, the fixed sleeve 11, and the screw 36 is two and they correspond one by one. A fixed seat 40 is fixedly connected to the support frame 33, and the air storage tank 4 is fixedly connected to the fixed seat 40.

[0055] When the driving motor 31 is started, the driving motor 31 will drive the driving bevel gear 32 at the output end to rotate. While the driving bevel gear rotates, it drives the transmission shaft 34 to rotate synchronously through the first driven bevel gear meshing therewith. Then, the transmission shaft 34 drives the second driven bevel gear 35 arranged at the end far from the driving motor 31 to drive the third driven bevel gear 12 meshing therewith to rotate. The rotation of the third driven bevel gear 12 drives the screw 36 to rise or fall. At the same time, it is ensured that the two third driven bevel gears 12 can rotate synchronously, ensuring the synchronous rise or fall of the two screws 36, and avoiding the problem that the movements of the two screws 36 arranged at the top of the throttle plate 2 cannot be synchronized.

[0056] When the screw 36 moves upward, the screw 36 can drive the throttle plate 2 to move upward synchronously. At this time, the throttle plate 2 will slide upward along the first limit chute 13, and the bottom of the throttle plate 2 will gradually separate from the fixed frame 1 to facilitate the passage of water. On the contrary, when the screw 36 moves downward, the screw 36 can drive the throttle plate 2 to slide longitudinally along the first limit chute 13. At this time, the bottom of the throttle plate 2 will gradually approach the fixed frame 1 until the bottom of the throttle plate 2 completely enters the groove 17 arranged at the bottom of the fixed frame 1, so that the throttle plate 2 closes the fixed frame 1 to achieve water interception.

[0057] To ensure the stable operation of the transmission shaft 34, support frames 33 are respectively arranged on both sides of the driving motor 31, and the transmission shaft 34 is rotatably arranged inside the support frames 33 and the transmission shaft 34 is in a horizontal state. This enables the transmission shaft 34 to always maintain a horizontal state during rotation, preventing the transmission shaft 34 from shifting during rotation. Effectively ensuring the stability of the transmission shaft 34.

[0058] To ensure the stability of the air storage tank 4, a fixing seat 40 is fixedly arranged on the top of the driving motor 31, and both ends of the bottom of the fixing seat 40 are respectively fixed to the top of one end of the support frame 33 close to the driving motor 31. Then the bottom end of the air storage tank 4 is fixed to the top of the fixing seat 40, so that when the push rod 9 drives the piston 41 to longitudinally move along the central axis of the air storage tank 4 through the piston rod 42, the air storage tank 4 can maintain a vertical state. Preventing the air storage tank 4 from tilting during operation.

[0059] In an alternative embodiment of the present embodiment, preferably, a first installation groove 21 is provided on the intercepting plate 2 corresponding to each airbag 7, and the airbag 7 is installed in the corresponding first installation groove 21; the length direction of the first installation groove 21 is parallel to the first direction.

[0060] In an alternative embodiment of the present embodiment, preferably, each airbag 7 is communicated with the air storage cavity through a pipeline assembly 8. The pipeline assembly 8 includes a first pipeline 81 and a second pipeline 82. One end of the first pipeline 81 is communicated with the airbag 7, and the other end is communicated with one end of the second pipeline 82. The other end of the second pipeline 82 is communicated with the air storage tank 4;

[0061] The first pipeline 81 is made of a hard pipe, the second pipeline 82 is made of a flexible pipe, and the first pipeline 81 passes through the fixing frame 1 and is slidably matched with the fixing frame 1 along the first direction.

[0062] In an alternative embodiment of the present embodiment, preferably, as Figure 6 and Figure 8 shown, an exhaust port 43 is provided on the air storage tank 4, and the ventilation cavity is communicated with the outside air through the exhaust port 43; when the piston rod 42 drives the piston 41 to move upward, the piston 41 will cause the volume of the ventilation cavity to decrease, and the gas in the ventilation cavity is discharged through the exhaust port 43. This process effectively prevents the internal pressure of the barrel from being too high, thereby ensuring the smooth exhaust of the airbag 7 and preventing the air inside the airbag 7 from being unable to be effectively evacuated. On the contrary, when the piston rod 42 drives the piston 41 to move downward, a negative pressure area is formed inside the ventilation cavity. The outside air smoothly enters the inside of the barrel through the exhaust port 43 to achieve the dynamic balance of the gas.

[0063] In an alternative embodiment of the present embodiment, preferably, as Figure 1 、 Figure 3 、 Figure 4 、 Figure 5 、Figure 6 , Figure 7 and Figure 9 As shown in Figure 6 , Figure 7 and Figure 9 , this embodiment further includes a plugging mechanism 5. The plugging mechanism 5 includes a limit seat 15, a strip stone 51 and a plurality of limit rods 52. The limit seat 15 is fixedly installed at the bottom of the side of the intercepting plate 2 for intercepting water. The limit seat 15 is provided with a limit hole 151 corresponding to each limit rod 52. The limit rod 52 slidably passes through the corresponding limit hole 151. A limit block 55 is fixedly provided at the top of the limit rod 52, and the limit block 55 cannot pass through the limit hole 151. The bottom end of the limit rod 52 is fixedly connected to the strip stone 51. A spring 53 is sleeved on each limit rod 52. The top end of the spring 53 can abut against the limit seat 15, and the bottom end can abut against the strip stone 51. A groove 17 that can fit with the bottom of the strip stone 51 is provided at the bottom of the fixed frame 1;

[0064] A convex strip 54 is fixedly provided on the side of the strip stone 51 close to the intercepting plate 2. The intercepting plate 2 is provided with a third limit chute 23 corresponding to the convex strip 54. The convex strip 54 is slidably matched with the corresponding third limit chute 23.

[0065] When the intercepting plate 2 moves downward, it can drive the plugging mechanism 5 to move downward. When the strip stone 51 abuts against the groove 17, the intercepting plate 2 continues to drive the limit seat 15 to move downward. Then the limit seat 15 will compress the spring 53, so that the strip stone 51 can closely fit with the groove 17 at the bottom of the fixed frame 1 under the push of each spring 53, realizing that the plugging mechanism 5 can seal the bottom of the intercepting plate 2, and solving the problem of water seepage at the docking part between the intercepting plate 2 and the bottom of the gate. It should be noted that the groove 17 at the bottom of the fixed frame 1 has a space for accommodating the bottom of the intercepting plate 2 while fitting with the bottom of the strip stone 51. When the intercepting plate 2 moves downward to the limit, it can also fit with the groove 17 to enhance the sealing effect.

[0066] In the present invention, specific examples are used to elaborate on the principle and implementation manner of the present invention. The description of the above embodiments is only used to help understand the method and its core idea of the present invention; at the same time, for those of ordinary skill in the art, according to the idea of the present invention, there will be changes in the specific implementation manner and application scope. In summary, the content of this specification should not be construed as a limitation to the present invention.

Claims

1. An anti-seepage and water-stopping structure for water conservancy projects, characterized in that, Comprising: A fixed frame; A flow interceptor plate, the first end and the second end of the flow interceptor plate are respectively in sliding fit with the inner wall of the fixed frame along a first direction; A driving mechanism for driving the flow interceptor plate to slide relative to the fixed frame along the first direction; An air sealing mechanism, the air sealing mechanism includes a gas storage barrel and two air bags respectively installed at the first end and the second end of the flow interceptor plate, and each air bag is located between the flow interceptor plate and the inner wall of the fixed frame; a piston that is slidably fitted with the gas storage barrel along the first direction is arranged inside the gas storage barrel, the piston is connected with a piston rod, and the piston rod is fixedly connected with the flow interceptor plate; the piston divides the gas storage barrel into two cavities, the cavity where the piston rod is located is a ventilation cavity, and the other cavity is a gas storage cavity, the ventilation cavity is communicated with the outside air, and each air bag is communicated with the gas storage cavity.

2. The anti-seepage and water-stopping structure for water conservancy projects according to claim 1, characterized in that: The driving mechanism includes a driving motor, a driving bevel gear, a support frame, a transmission shaft, a fixed sleeve and a screw rod. The driving motor, the support frame and the fixed sleeve are respectively fixedly connected with the fixed frame. The axial direction of the fixed sleeve, the axial direction of the output shaft of the driving motor and the axial direction of the screw rod are respectively parallel to the first direction; the transmission shaft is rotatably installed on the support frame, and the axial direction of the transmission shaft is perpendicular to the first direction; the driving bevel gear is fixedly arranged on the output shaft of the driving motor, a first driven bevel gear meshing with the driving bevel gear is fixedly arranged at one end of the transmission shaft, and a second driven bevel gear is fixedly arranged at the other end; a third bevel gear meshing with the second driven bevel gear is rotatably installed on the fixed sleeve; one end of the screw rod is fixedly connected with the flow interceptor plate, the screw rod passes through the fixed frame and the fixed sleeve, and the screw rod is respectively in sliding fit with the fixed frame and the fixed sleeve, and the screw rod is in threaded connection with the third bevel gear.

3. The anti-seepage and water-stopping structure for water conservancy projects according to claim 2, characterized in that: The number of the transmission shafts, the support frames, the fixed sleeves and the screw rods is two and they correspond one by one; a fixed seat is fixedly connected to the support frame, and the gas storage barrel is fixedly connected to the fixed seat.

4. The anti-seepage and water-stopping structure for water conservancy projects according to claim 1, wherein: A first installation groove is arranged on the flow interceptor plate corresponding to each air bag, and the air bag is installed in the corresponding first installation groove; the length direction of the first installation groove is parallel to the first direction.

5. The anti-seepage and water-stopping structure for water conservancy projects according to claim 1, characterized in that: Each air bag is communicated with the gas storage cavity through a pipeline assembly. The pipeline assembly includes a first pipeline and a second pipeline. One end of the first pipeline is communicated with the air bag, and the other end is communicated with one end of the second pipeline. The other end of the second pipeline is communicated with the gas storage barrel; The first pipeline is made of a hard pipe, the second pipeline is made of a flexible pipe, and the first pipeline passes through the fixed frame and is in sliding fit with the fixed frame along the first direction.

6. The anti-seepage and water-stopping structure for water conservancy projects according to claim 1, characterized in that: An exhaust port is arranged on the gas storage barrel, and the ventilation cavity is communicated with the outside air through the exhaust port.

7. The anti-seepage and water-stop structure for water conservancy projects according to claim 1, characterized in that: A support seat is fixedly arranged on the flow interceptor plate, and a plurality of ejector rods are fixedly arranged on the support seat. One end of the ejector rod is fixedly connected with the support seat, and the other end is fixedly connected with the piston rod.

8. The anti-seepage and water-stopping structure for water conservancy projects according to claim 1, characterized in that: On the side of the intercepting plate for intercepting, a filtering grille is installed corresponding to each of the air bags, and the filtering grille is used to protect the corresponding air bag; The intercepting plate is provided with a second installation groove corresponding to each of the filtering grilles, the fixed frame is provided with a second limiting sliding groove corresponding to each of the filtering grilles, one end of the filtering grille is fixedly connected to the corresponding second installation groove, and the other end is slidably matched with the corresponding second limiting sliding groove.

9. The anti-seepage and water-stopping structure for water conservancy projects according to claim 1, wherein: On the inner wall of the fixed frame, first limiting sliding grooves are respectively provided corresponding to the first end and the second end of the intercepting plate, and the first end and the second end of the intercepting plate are slidably matched with the corresponding first limiting sliding grooves.

10. The anti-seepage and water-stopping structure for water conservancy projects according to claim 1, characterized in that: It further includes a blocking mechanism, which includes a limiting seat, a strip stone and a plurality of limiting rods. The limiting seat is fixedly installed at the bottom of the side of the intercepting plate for intercepting. The limiting seat is provided with a limiting hole corresponding to each of the limiting rods. The limiting rod slidably passes through the corresponding limiting hole. A limiting block is fixedly provided at the top end of the limiting rod, and the limiting block cannot pass through the limiting hole. The bottom end of the limiting rod is fixedly connected to the strip stone. A spring is sleeved on each of the limiting rods. The top end of the spring can abut against the limiting seat, and the bottom end can abut against the strip stone. A groove capable of fitting with the bottom of the strip stone is provided at the bottom of the fixed frame; A convex strip is fixedly provided on the side of the strip stone close to the intercepting plate, and the intercepting plate is provided with a third limiting sliding groove corresponding to the convex strip, and the convex strip is slidably matched with the corresponding third limiting sliding groove.

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