A maintenance channel structure for a submerged arc gate of a sluice

Abstract

The application relates to a structure of a maintenance channel of a submerged arc gate of a sluice, which comprises a maintenance channel, a plurality of sliding grooves are distributed along the width direction and the length direction of the maintenance channel, a plurality of clamping grooves are distributed along the width direction and the length direction of the maintenance channel, the length direction of the sliding grooves is consistent with the length direction of the clamping grooves and is perpendicular to the length direction of the maintenance channel, a bearing plate and a driving element are arranged in the sliding grooves, the driving element is located at one end of the sliding groove far away from the clamping groove, the bearing plate is located at the other end of the clamping groove and is connected with a pole-climbing rod, the pole-climbing rod protrudes from the sliding groove, and the pole-climbing rod is clamped with the clamping groove. The application has the following effects: the physical exhaustion of maintenance personnel when climbing in the maintenance channel can be avoided as much as possible, and the safety hidden danger is reduced.

Description

Technical Field

[0001] This application relates to the field of gates in water conservancy and hydropower projects, and in particular to a maintenance channel structure for a submerged arc gate of a spillway. Background Technology

[0002] A spillway gate is a low-head water discharge structure that mainly uses gates to block water. The submerged arc gate of a spillway gate requires frequent maintenance. For ease of maintenance, the gate piers are equipped with a water seal and side wheel maintenance platform, a hydraulic cylinder hinge maintenance platform, and a passage leading to the corbel for maintenance of the arc gate hinge.

[0003] Chinese utility model patent CN204401578U discloses a maintenance passage structure for a submerged arc gate of a spillway, including a water seal and side wheel maintenance platform, a hydraulic cylinder hinge seat maintenance platform, and a bracket, all mounted on the gate pier. The hydraulic cylinder hinge seat maintenance platform has a climbing passage leading to the top of the pier, an interconnecting passage leading to the water seal and side wheel maintenance platform, and a connecting passage leading to the bracket. This utility model provides passages between all platforms, facilitating maintenance work and improving maintenance efficiency.

[0004] However, the water seal and side wheel maintenance platform is connected to the top of the pier by a separate vertical passage, which is very long. When maintenance personnel climb the vertical ladder inside the passage, they are prone to exhaustion and cannot free their hands and feet to rest, which poses a certain safety hazard. Summary of the Invention

[0005] To minimize the risk of exhaustion for maintenance personnel climbing the vertical ladders inside the passageway and reduce safety hazards, this application provides a maintenance passageway structure for a sluice gate with a submerged arc gate.

[0006] This application provides a maintenance passage structure for a submerged arc gate of a spillway, which adopts the following technical solution:

[0007] A maintenance passage structure for a spillway gate with a submerged arc gate includes a maintenance passage. Multiple sliding grooves are distributed along both the width and length directions of the maintenance passage. Each sliding groove is located on one side wall of the maintenance passage. Multiple locking slots are also distributed along both the width and length directions of the maintenance passage. Each locking slot is located on the side wall of the maintenance passage away from the sliding grooves. The length direction of the sliding grooves is consistent with the length direction of the locking slots and perpendicular to the length direction of the maintenance passage. A receiving plate and a driving component are provided in each sliding groove. The driving component is used to push the receiving plate to slide within the sliding groove. The driving component is located at the end of the sliding groove away from the locking slots. The receiving plate is located at the other end of the locking slots and connected to a climbing rod. The climbing rod protrudes from the sliding groove and engages with the locking slots.

[0008] By adopting the above technical solution, maintenance personnel may experience physical exhaustion when climbing up and down the maintenance passage using climbing poles. In this case, the corresponding drive component can be controlled to push the support plate out of the slide groove, so that the climbing pole is locked inside the groove, temporarily creating a support platform. Maintenance personnel can let go of their hands and stand on the support plate to rest briefly, and then continue climbing after their physical strength has recovered. This improves the convenience of the maintenance passage and can minimize the possibility of physical exhaustion for maintenance personnel when climbing inside the maintenance passage, thereby reducing safety hazards.

[0009] Preferably, a sponge block is provided in the slot, and a fitting seam is opened at one end of the sponge block near the receiving plate, the length direction of the fitting seam being consistent with the length direction of the slot.

[0010] By adopting the above technical solution, the driving component pushes the receiving plate, and the climbing pole enters the joint of the sponge block. The sponge block can rub against the surface of the climbing pole and wipe away the moisture and impurities on the surface of the climbing pole, which can prevent maintenance personnel from slipping when climbing and reduce safety hazards.

[0011] Preferably, the climbing rod is C-shaped, and a piston cylinder is provided at the end of the slot away from the slide groove. A piston plate is slidably connected in the piston cylinder, and a first spring is provided in the piston cylinder. One end of the first spring is connected to the piston plate, and the other end is connected to the end of the piston cylinder away from the slide groove. A connecting rod is connected to the side of the piston plate away from the first spring. One end of the connecting rod extends along the length direction of the slot into the fitting seam and is connected to a contact block. Fitting airbags are provided on both sides of the fitting seam. The fitting airbags are connected to the sponge block. The fitting airbags are connected to the rodless chamber of the piston cylinder through a conduit. A sponge sheet is connected to the side of the two fitting airbags that are close to each other.

[0012] By adopting the above technical solution, after the climbing rod enters the innermost part of the bonding seam, it will push the contact block, causing the piston plate to compress the air in the rodless chamber of the piston cylinder. The compressed air then enters the bonding airbag through the conduit, which can cause a pair of bonding airbags to expand and move closer to each other. The sponge sheet can then wipe away the moisture and impurities on the inside of the climbing rod, further improving the cleaning degree of the climbing rod and reducing the risk of slippage.

[0013] Preferably, the seam is provided with a plurality of elastic strips, each elastic strip being located at the end of the seam away from the groove, and the elastic strip being arc-shaped with its concave side facing outward from the end of the climbing pole.

[0014] By adopting the above technical solution, after the climbing pole enters the innermost part of the joint, it will squeeze the elastic strip. The elastic strip will gradually bend and scrape the outside of the climbing pole end, thereby reducing the moisture and impurities on the outside of the climbing pole end and reducing the risk of slipping.

[0015] Preferably, the end of the piston cylinder furthest from the first spring is connected to the outside via an air inlet pipe. The contact block has an air outlet, the length of which is aligned with the length of the seam. The contact block is connected to a pipe, one end of which is connected to the air outlet, and the other end is connected to the end of the piston cylinder with the air outlet and connected to the piston plate. The contact block is connected to a one-way flow structure, which is used to close the air outlet or to connect the air outlet to the end of the piston cylinder furthest from the first spring.

[0016] By adopting the above technical solution, when the climbing rod squeezes the contact block, the contact block pushes the piston plate through the connecting rod, the first spring is compressed, and outside air enters the piston cylinder through the air inlet pipe. When the climbing rod disengages from the sealing seam, the first spring pushes the piston plate to reset, and the air in the piston cylinder is ejected through the air outlet, which can blow out the dust and other impurities collected inside the sealing seam, allowing the sponge block to work continuously.

[0017] Preferably, the unidirectional flow structure includes a first limiting block and a first elastic rope. The first limiting block is located at the end of the contact block away from the piston cylinder. One end of the first elastic rope is connected to the wall of the air outlet, and the other end is connected to the first limiting block.

[0018] By adopting the above technical solution, when the climbing rod squeezes the contact block, the first limiting block adheres to the surface of the contact block under the pressure of the climbing rod and seals the air outlet. When the climbing rod leaves the joint, the air pressure inside the air outlet pushes the first limiting block open, thereby achieving one-way flow. At the same time, the first limiting block can disperse the airflow ejected from the air outlet, so that the airflow blows along the side wall of the joint, which can improve the cleaning effect of impurities.

[0019] Preferably, a second limiting block is provided on the side of the fitting airbag near the conduit, the inner wall of the conduit is connected to the second limiting block by a second elastic rope, and the top and bottom walls of the slot near the sliding groove are both hinged with movable pieces, the movable pieces are connected to the second limiting block by a connecting rope, the connecting rope passes through the sponge block and the fitting airbag, and the connecting rope is slidably connected to the sponge block and the fitting airbag.

[0020] By adopting the above technical solution, when the air in the piston cylinder with the first spring enters the sealing airbag through the conduit, it can push the second limiting block. The second elastic rope pulls the second limiting block to seal the conduit. During the process of the climbing rod disengaging from the sealing seam, when the climbing rod returns to the position of the movable plate, it will push the movable plate to rotate into the maintenance channel. This will pull the second limiting block away from the conduit through the connecting rope. At this time, the air in the sealing airbag can return to the piston cylinder with the first spring, and the piston plate can move so that the air outlet will only release air when the climbing rod is completely disengaged from the sealing seam. This can minimize the problem of impurities being blocked by the climbing rod and unable to be blown out due to premature air release.

[0021] Preferably, a first magnet is connected to the side wall of the inspection channel near the movable piece, and a second magnet is connected to the side of the movable piece near the first magnet, with the magnetic poles of the first magnet and the second magnet having opposite poles at their close ends.

[0022] By adopting the above technical solution, after the climbing pole pushes the movable piece to rotate, the first magnet and the second magnet attract each other, limiting the movable piece and keeping the second limiting block away from the guide tube. This can minimize the problem that after the climbing pole leaves the sealing seam, the second elastic rope will pull the second limiting block again to seal the guide tube, which would prevent the air inside the sealing airbag from being completely released. When the climbing pole re-enters the sealing seam, it will push the movable piece away from the maintenance channel and rotate, causing the first magnet and the second magnet to separate.

[0023] Preferably, the climbing pole is a hollow tube. A first through hole is provided on the side of the climbing pole near the receiving plate. A sliding plate is slidably disposed in the first through hole. One end of the sliding plate protrudes from the surface of the climbing pole, and the other end is located inside the climbing pole and connected to an elastic airbag. The elastic airbag is connected to the inner wall of the climbing pole. Multiple second through holes are provided at the top of the climbing pole. Limiting rods are slidably disposed in the second through holes. One end of the limiting rod is flush with the top of the climbing pole. A sealing shell is connected to the inner wall of the top of the climbing pole. An elastic membrane is disposed inside the sealing shell. The other end of the limiting rod is connected to the elastic membrane. The elastic airbags in each climbing pole are connected to the sealing shells in the climbing poles below them through pipes. One end of the limiting rod is used to connect to the anti-slip groove of the shoe sole.

[0024] By adopting the above technical solution, when maintenance personnel hold the climbing pole, they push the slide plate into the inside of the climbing pole and squeeze the elastic airbag. The gas inside the elastic airbag enters the corresponding sealing shell of the lower climbing pole and pushes the elastic membrane to drive the limiting rod to extend upward. This allows the lower climbing pole to extend the limiting rod when the maintenance personnel hold one of the climbing poles. The limiting rod can be locked into the anti-slip groove of the maintenance personnel's shoe sole, which can improve the anti-slip effect of the climbing pole.

[0025] Preferably, the limiting rod includes a movable block, a spring sheet, and a second spring. There are two spring sheets, each connected to the end of the movable block away from the elastic membrane. The length direction of both spring sheets is consistent with the length direction of the movable block. The second spring is located between the two spring sheets and its two ends are respectively connected to the two spring sheets. Both spring sheets are used to connect with the anti-slip groove of the shoe sole.

[0026] By adopting the above technical solution, since the width of the anti-slip groove on the sole of the maintenance personnel's shoes is irregular, it is difficult for the limiting rod to fit well with the anti-slip groove. After the limiting rod extends upward, a pair of springs move away from each other under the action of the second spring, which can make the springs fit with the side wall of the anti-slip groove on the sole of the shoe, thereby improving the anti-slip effect of climbing the pole.

[0027] In summary, this application includes at least one of the following beneficial technical effects:

[0028] 1. Maintenance personnel can control the corresponding drive components to push the receiving plate out of the slide, and make the climbing rod engage inside the slot, temporarily constructing a support platform. Maintenance personnel can let go of their hands and stand on the receiving plate to rest briefly, and then climb again after their strength has recovered. This improves the convenience of the maintenance passage and can minimize the possibility of maintenance personnel becoming exhausted when climbing inside the maintenance passage, thus reducing safety hazards.

[0029] 2. The driving component pushes the receiving plate, and the climbing pole enters the joint of the sponge block. The sponge block can rub against the surface of the climbing pole and wipe away the moisture and impurities on the surface of the climbing pole, which can prevent maintenance personnel from slipping when climbing and reduce safety hazards;

[0030] 3. When maintenance personnel hold the climbing pole, they push the slide plate into the climbing pole and squeeze the elastic airbag. The gas inside the elastic airbag enters the corresponding sealing shell of the lower climbing pole and pushes the elastic membrane to extend the limiting rod upward. This allows the lower climbing pole to extend the limiting rod when the maintenance personnel hold one of the climbing poles. The limiting rod can be locked into the anti-slip groove of the maintenance personnel's shoe sole, which can improve the anti-slip effect of the climbing pole. Attached Figure Description

[0031] Figure 1 This is a cross-sectional view of the overall structure of Embodiment 1 of this application.

[0032] Figure 2 yes Figure 1 A magnified view of a portion of point A in the middle.

[0033] Figure 3 yes Figure 2 A magnified view of a portion of point B in the middle.

[0034] Figure 4 yes Figure 2 A magnified view of a portion of point C.

[0035] Figure 5 This is a schematic diagram of the climbing pole cross-section of Embodiment 2 of this application.

[0036] Figure 6 This is a schematic diagram of the cross-section of the limiting rod in Embodiment 2 of this application.

[0037] Explanation of reference numerals in the attached figures:

[0038] 1. Inspection passage; 2. Slide groove; 3. Receiving plate; 4. Electric push rod; 5. Climbing rod; 6. Slot; 7. Sponge block; 8. Sealing seam; 9. Piston cylinder; 10. Piston plate; 11. First spring; 12. Connecting rod; 13. Contact block; 14. Sealing airbag; 15. Conduit; 16. Sponge sheet; 17. Elastic strip; 18. Air inlet pipe; 19. Air outlet; 20. First limiting block; 21. First elastic rope; 22. Second limiting block; 23. Second elastic rope; 24. Movable piece; 25. Connecting rope; 26. First magnet; 27. Second magnet; 28. Slide plate; 29. ​​Elastic airbag; 30. Limiting rod; 31. Sealing shell; 32. Elastic membrane; 301. Movable block; 302. Spring piece; 303. Second spring. Detailed Implementation

[0039] The present application will be further described in detail below with reference to all the accompanying drawings.

[0040] This application discloses a maintenance channel structure for a submerged arc gate of a spillway.

[0041] Example 1:

[0042] Reference Figure 1 and Figure 2 The maintenance passage structure of the spillway gate includes a maintenance passage 1. Multiple sliding grooves 2 and multiple locking grooves 6 are respectively opened on both sides of the maintenance passage 1. Each sliding groove 2 is distributed along the width and length of the side wall of the maintenance passage 1. Each locking groove 6 is distributed along the width and length of the side wall of the maintenance passage 1. A support plate 3 is slidably installed in the sliding groove 2. One end of the support plate 3 is connected to a climbing rod 5. The climbing rod 5 and the locking groove 6 are engaged to minimize the physical exhaustion of maintenance personnel when climbing inside the maintenance passage 1, thereby reducing safety hazards.

[0043] The length direction of the slide 2 is consistent with the length direction of the slot 6 and is perpendicular to the length direction of the maintenance passage 1. The openings of the slide 2 at the same horizontal height are directly opposite the openings of the slot 6. A driving component, which is an electric push rod 4, is provided at the end of the slide 2 away from the slot 6. The electric push rod 4 is connected to the receiving plate 3 and is used to push and pull the receiving plate 3 along the length direction of the slide 2. The receiving plate 3 is a rectangular plate and is horizontally arranged in the slide 2. The climbing rod 5 is C-shaped. The electric push rod 4 pushes the receiving plate 3, and the receiving plate 3 pushes the climbing rod 5 so that the climbing rod 5 is engaged in the slot 6.

[0044] Because the maintenance passage 1 is in a dark and damp environment year-round, the surface of the climbing pole 5 may be covered with moisture and moss. To reduce moisture and moss, a sponge block 7 is fixed inside the slot 6, with the length of the sponge block 7 aligned with the length of the slot 6. A fitting seam 8 is provided at the end of the sponge block 7 closest to the maintenance passage 1, with the length of the fitting seam 8 aligned with the length of the slot 6.

[0045] Reference Figure 2 and Figure 3 A piston cylinder 9 is fixedly connected to the side of the slot 6 away from the maintenance channel 1. A piston plate 10 is slidably connected in the piston cylinder 9. A first spring 11 is fixedly connected between one side of the piston plate 10 and the end of the piston cylinder 9 away from the maintenance channel 1. The length direction of the first spring 11 is consistent with the length direction of the piston cylinder 9. One end of the first spring 11 is connected to the piston plate 10, and the other end is connected to the end of the piston cylinder 9.

[0046] A connecting rod 12 is fixed to the other side of the piston plate 10. The length direction of the connecting rod 12 is consistent with the length direction of the slot 6. A contact block 13 is fixed to one end of the connecting rod 12 extending into the fitting seam 8. Fitting airbags 14 are fixed to both the upper and lower sidewalls of the fitting seam 8, and the fitting airbags 14 are connected to the rodless chamber of the piston cylinder 9 through the conduit 15. A sponge sheet 16 is fixed to the opposite side of each of the two fitting airbags 14. After the climbing rod 5 enters the innermost part of the fitting seam 8, it pushes the contact block 13, causing the piston plate 10 to compress the air in the rodless chamber of the piston cylinder 9. The compressed air enters the fitting airbags 14 through the conduit 15, causing the pair of fitting airbags 14 to expand and move closer to each other. In this way, the sponge sheet 16 can wipe away the moisture and moss on the inside of the climbing rod 5, further improving the cleaning degree of the climbing rod 5.

[0047] Multiple elastic strips 17 are fixed to the side of the joint 8 away from the inspection passage 1. The elastic strips 17 are made of rubber and are arc-shaped with the concave side facing the outer side of the climbing rod 5 away from the receiving plate 3. After the climbing rod 5 enters the innermost part of the joint 8, it squeezes the elastic strips 17, causing the elastic strips 17 to gradually bend and scrape the outside of the climbing rod 5, which can remove moisture and moss from the outside of the climbing rod 5.

[0048] The rod chamber of piston cylinder 9 is connected to the outside via air inlet pipe 18. An air outlet 19 is provided inside the contact block 13, with its length aligned with the length of the fitting seam 8. The air outlet 19 is connected to the rod chamber of piston cylinder 9 via a pipe, and its interior has a one-way flow structure. The air inlet pipe 18 also has a one-way flow structure; in this embodiment, the one-way flow structure is a one-way valve.

[0049] The unidirectional flow structure includes a first limiting block 20 and a first elastic rope 21. The first limiting block 20 is located at the end of the contact block 13 away from the piston cylinder 9. One end of the first elastic rope 21 is connected to the wall of the air outlet 19, and the other end is connected to the first limiting block 20.

[0050] Reference Figure 2 and Figure 4 A second limiting block 22 is provided inside the airbag 14 near the conduit 15. A second elastic rope 23 is fixed between the inner wall of the conduit 15 and the second limiting block 22. Movable pieces 24 are hinged to the upper and lower side walls of the slot 6 near the maintenance channel 1. A connecting rope 25 is fixed between the second limiting block 22 and the movable piece 24. The connecting rope 25 passes through the airbag 14 and the sponge block 7 and is slidably connected to the airbag 14 and the sponge block 7.

[0051] A first magnet 26 is fixed to the side wall of the maintenance passage 1 near the movable piece 24 by a bracket. A second magnet 27 is fixed to the side of the movable piece 24 near the first magnet 26, and the magnetic poles of the ends of the first magnet 26 and the second magnet 27 that are close to each other are opposite.

[0052] The implementation principle of Example 1 is as follows: Since the vertical maintenance passage 1 of the spillway gate is relatively long, maintenance personnel may experience exhaustion when climbing up and down using the climbing pole 5 inside the maintenance passage 1. At this time, the maintenance personnel can control the corresponding electric push rod 4 to push the support plate 3 outward and make the climbing pole 5 engage with the slot 6, thereby temporarily constructing a support platform. The maintenance personnel can let go of their hands and stand on the support plate 3 to rest briefly. After their physical strength is relieved, they can continue climbing. This can minimize the possibility of exhaustion for maintenance personnel when climbing inside the maintenance passage 1 and reduce safety hazards.

[0053] By incorporating a sponge block 7, the climbing pole 5 enters the sealing seam 8 inside the sponge block 7. The sponge block 7 rubs against the surface of the climbing pole 5, wiping away moisture and moss, thus minimizing the risk of slippage for maintenance personnel. Once the climbing pole 5 reaches the innermost part of the sealing seam 8, it pushes the contact block 13, causing the piston plate 10 to compress the air in the rodless chamber of the piston cylinder 9. This compressed air enters the sealing airbags 14 through the conduit 15, causing a pair of sealing airbags 14 to expand and move closer together. The sponge sheet 16 wipes away moisture and moss from the inside of the climbing pole 5, further improving the cleaning and reducing the risk of slippage. When the climbing pole 5 reaches the innermost part of the sealing seam 8, it compresses the elastic strip 17. The elastic strip 17 gradually bends and scrapes the outside of the climbing pole 5, removing moisture and moss, providing a comprehensive cleaning and further reducing the risk of slippage.

[0054] By setting a one-way flow structure, when the climbing rod 5 presses against the contact block 13, outside air can enter the rod chamber of the piston cylinder 9 through the air inlet pipe 18. When the climbing rod 5 disengages from the sealing seam 8, the first spring 11 pushes the piston plate 10 to reset, and the air inside the rod chamber of the piston cylinder 9 is ejected through the air outlet 19, blowing out the moss and dust collected inside the sealing seam 8, ensuring the continuous operation of the sponge block 7. When the climbing rod 5 presses against the contact block 13, the first limiting block 20 adheres to the surface of the contact block 13 under the pressure of the climbing rod 5, sealing the air outlet 19. When the climbing rod 5 disengages from the sealing seam 8, the air pressure inside the air outlet 19 pushes the first limiting block 20 open, thereby achieving a one-way flow effect. Furthermore, the first limiting block 20 can disperse the airflow ejected from the air outlet 19, allowing the airflow to blow along the side wall of the sealing seam 8, improving the cleaning effect of impurities.

[0055] When air in the rodless chamber of piston cylinder 9 enters the sealing airbag 14 through conduit 15, it pushes open the second limiting block 22. The second elastic rope 23 pulls the second limiting block 22 to seal the conduit 15. During the process of climbing rod 5 disengaging from sealing seam 8, when climbing rod 5 returns to the position of movable plate 24, it pushes movable plate 24 to rotate towards inspection channel 1, thereby pulling the second limiting block 22 away from conduit 15 through connecting rope 25. At this time, air in sealing airbag 14 can return to the rodless chamber of piston cylinder 9, and piston plate 10 can move. Air outlet 19 will only release air when climbing rod 5 is completely disengaged from sealing seam 8, which can minimize the problem of impurities being blocked by climbing rod 5 due to premature air release and failure to blow out impurities.

[0056] After the climbing pole 5 pushes the movable piece 24 to rotate, the first magnet 26 and the second magnet 27 attract each other, limiting the movable piece 24. This keeps the second limiting block 22 away from the guide tube 15, which can minimize the problem that after the climbing pole 5 leaves the sealing seam 8, the second elastic rope 23 will pull the second limiting block 22 to seal the guide tube 15 again, causing the air inside the sealing airbag 14 to not be completely released. When the climbing pole 5 re-enters the sealing seam 8, it will push the movable piece 24 away from the maintenance channel 1 to rotate, and cause the first magnet 26 and the second magnet 27 to separate.

[0057] Example 2: The difference between Example 1 and Example 2 is that the anti-slip method used by maintenance personnel when climbing up and down using the climbing pole 5 is different.

[0058] Reference Figure 5 and Figure 6 The maintenance passage structure of the spillway gate includes a climbing rod 5, which is a hollow tubular shape. A first through hole is opened on the side of the climbing rod 5 near the receiving plate 3. A sliding plate 28 is slidably connected in the first through hole, and one end of the sliding plate 28 protrudes from the surface of the climbing rod 5. An elastic airbag 29 is fixed between the other end of the sliding plate 28 and the inner wall of the climbing rod 5.

[0059] Multiple second through holes are evenly distributed at the top of the climbing pole 5, with each second through hole extending along the length of the climbing pole 5. A limiting rod 30 is slidably connected to each second through hole, with one end of the limiting rod 30 flush with the surface of the climbing pole 5. A sealing shell 31 is fixedly attached to the inner wall of the top of the climbing pole 5, and an elastic membrane 32 is fixedly attached inside the sealing shell 31. The other end of the limiting rod 30 is fixedly attached to the elastic membrane 32. The elastic airbag 29 inside each climbing pole 5 communicates with the sealing shell 31 inside the climbing pole 5 below it via a pipe.

[0060] Each limiting rod 30 includes a movable block 301, a second spring 303, and two spring pieces 302. A pair of spring pieces 302 are fixed to the top of the movable block 301. The second spring 303 is located between the pair of spring pieces 302, and its two ends are respectively connected to the two spring pieces 302. Both spring pieces 302 are used to connect with the anti-slip grooves on the sole of the shoe.

[0061] The implementation principle of Example 2 is as follows: When the maintenance personnel hold the climbing pole 5, they push the sliding plate 28 into the climbing pole 5 and squeeze the elastic airbag 29. The gas inside the elastic airbag 29 enters the sealing shell 31 corresponding to the lower climbing pole 5. The gas can push the elastic membrane 32 to drive the limiting rod 30 to extend upward. In this way, when the maintenance personnel hold one of the climbing poles 5, the lower climbing pole 5 will extend the limiting rod 30. The limiting rod 30 can be inserted into the anti-slip groove of the maintenance personnel's shoe sole, further improving the anti-slip effect of the climbing pole 5.

[0062] Because the anti-slip grooves on the soles of the maintenance personnel's shoes are of irregular width, the limiting rod 30 has difficulty fitting well with the anti-slip grooves. After the limiting rod 30 extends upward, a pair of spring pieces 302 move away from each other under the action of the second spring 303, allowing the spring pieces 302 to fit against the side wall of the anti-slip grooves on the soles of the shoes, thereby further improving the anti-slip effect of the climbing pole 5.

[0063] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A maintenance passage structure for a submerged arc gate of a spillway, characterized in that: The system includes a maintenance channel (1), which has multiple grooves (2) distributed along both its width and length. Each groove (2) is located on one side wall of the maintenance channel (1). The maintenance channel (1) also has multiple slots (6) distributed along both its width and length. Each slot (6) is located on the side wall of the maintenance channel (1) away from the grooves (2). The length direction of the grooves (2) is consistent with the length direction of the slots (6). Perpendicular to the length direction of the maintenance channel (1), the slide (2) is provided with a receiving plate (3) and a driving member. The driving member is used to push the receiving plate (3) to slide in the slide (2). The driving member is located at one end of the slide (2) away from the slot (6). The receiving plate (3) is located at the other end of the slot (6) and is connected to a climbing rod (5). The climbing rod (5) protrudes from the slide (2) and is engaged with the slot (6). The slot (6) is provided with a sponge block (7), and a fitting seam (8) is opened at one end of the sponge block (7) near the receiving plate (3). The length direction of the fitting seam (8) is consistent with the length direction of the slot (6). The climbing pole (5) is hollow tubular. A first through hole is provided on the side of the climbing pole (5) near the receiving plate (3). A sliding plate (28) is slidably disposed in the first through hole. One end of the sliding plate (28) protrudes from the surface of the climbing pole (5), and the other end is located inside the climbing pole (5) and connected to an elastic airbag (29). The elastic airbag (29) is connected to the inner wall of the climbing pole (5). A plurality of second through holes are provided at the top of the climbing pole (5). Limiting rods (30) are slidably disposed in the second through holes. One end of the limiting rod (30) is flush with the top of the climbing rod (5). A sealing shell (31) is connected to the inner wall of the top of the climbing rod (5). An elastic membrane (32) is provided inside the sealing shell (31). The other end of the limiting rod (30) is connected to the elastic membrane (32). The elastic airbag (29) in each climbing rod (5) is connected to the sealing shell (31) in the climbing rod (5) below it through a pipe. One end of the limiting rod (30) is used to connect with the anti-slip groove of the shoe sole.

2. The structure of the inspection channel for the submerged arc gate of the sluice according to claim 1, characterized in that: The climbing rod (5) is C-shaped. A piston cylinder (9) is provided at the end of the slot (6) away from the slide groove (2). A piston plate (10) is slidably connected in the piston cylinder (9). A first spring (11) is provided in the piston cylinder (9). One end of the first spring (11) is connected to the piston plate (10), and the other end is connected to the end of the piston cylinder (9) away from the slide groove (2). A connecting rod is connected to the side of the piston plate (10) away from the first spring (11). (12) One end of the connecting rod (12) extends along the length direction of the slot (6) into the fitting seam (8) and is connected to a contact block (13). Fitting airbags (14) are provided on both sides of the fitting seam (8). The fitting airbags (14) are connected to the sponge block (7). The fitting airbags (14) are connected to the rodless chamber of the piston cylinder (9) through the conduit (15). Sponge sheets (16) are connected to the side of the two fitting airbags (14) that are close to each other.

3. The structure of the inspection channel for the submerged arc gate of the sluice according to claim 2, characterized in that: The fitting seam (8) is provided with a plurality of elastic strips (17), each elastic strip (17) being located at one end of the fitting seam (8) away from the slide groove (2), the elastic strip (17) being arc-shaped with the concave side facing the outer side of the end of the climbing rod (5).

4. The structure of the inspection channel for the submerged arc gate of the sluice according to claim 2, characterized in that: The piston cylinder (9) is connected to the outside through an air inlet pipe (18) at one end away from the first spring (11). The contact block (13) is provided with an air outlet (19). The length direction of the air outlet (19) is consistent with the length direction of the fitting seam (8). The contact block (13) is connected to a pipeline. One end of the pipeline is connected to the air outlet (19), and the other end is connected to the end of the piston cylinder (9) where the air outlet (19) is provided and connected to the piston plate (10). The contact block (13) is connected to a one-way flow structure. The one-way flow structure is used to close the air outlet (19) or to connect the air outlet (19) to the end of the piston cylinder (9) away from the first spring (11).

5. The maintenance passage structure for the submerged arc gate of the spillway according to claim 4, characterized in that: The unidirectional flow structure includes a first limiting block (20) and a first elastic rope (21). The first limiting block (20) is located at the end of the contact block (13) away from the piston cylinder (9). One end of the first elastic rope (21) is connected to the hole wall of the air outlet (19), and the other end is connected to the first limiting block (20).

6. The maintenance passage structure for the submerged arc gate of the spillway according to claim 4, characterized in that: A second limiting block (22) is provided on the side of the fitting airbag (14) near the conduit (15). The inner wall of the conduit (15) is connected to the second limiting block (22) by a second elastic rope (23). The top and bottom walls of the slot (6) near the slide (2) are hinged with movable pieces (24). The movable pieces (24) are connected to the second limiting block (22) by a connecting rope (25). The connecting rope (25) passes through the sponge block (7) and the fitting airbag (14). The connecting rope (25) is slidably connected to the sponge block (7) and the fitting airbag (14).

7. The maintenance passage structure for the submerged arc gate of the spillway according to claim 6, characterized in that: The maintenance channel (1) is connected to a first magnet (26) on the side wall near the movable piece (24), and a second magnet (27) is connected to the side of the movable piece (24) near the first magnet (26). The magnetic poles of the ends of the first magnet (26) and the second magnet (27) that are close to each other are opposite.

8. The maintenance passage structure for the submerged arc gate of the spillway according to claim 1, characterized in that: The limiting rod (30) includes a movable block (301), a spring (302) and a second spring (303). There are two springs (302) and both are connected to the end of the movable block (301) away from the elastic membrane (32). The length direction of the two springs (302) is consistent with the length direction of the movable block (301). The second spring (303) is located between the two springs (302) and its two ends are respectively connected to the two springs (302). Both springs (302) are used to connect with the anti-slip groove of the shoe sole.

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