A gravity self-sealing device for flood control gate

Abstract

The present invention relates to the technical field of water conservancy equipment, and specifically to a gravity self-sealing device for flood control gates, including a positioning component, a closing device is slidably installed inside the positioning component, a hand winch is fixedly installed on the top of the closing device, the closing device includes a vertical groove, a flood control gate, a first rack and a second rack, the vertical groove is symmetrically arranged on both sides of the rear end of the flood control gate, the first rack is symmetrically fixedly installed at the bottom of the front end of the flood control gate, the second rack is symmetrically fixedly installed at the top of the rear end of the flood control gate, the positioning component includes a guide device, a support device, a synchronization device and a covering device, the guide device is symmetrically fixedly installed at the front end of the support device, the covering device is fixedly installed at the rear end of the support device, and the synchronization device is fixedly installed at the top of the rear end of the support device near the covering device. Through the arrangement of the closing device and the positioning component, the purpose of pre-cleaning the door frame and strengthening the sealing when the flood control door and the door frame are matched and docked is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of water conservancy equipment, in particular to a gravity self-sealing device for a flood control gate. Background Art

[0002] Flood gates are a kind of safety facilities specially designed to prevent flood disasters. Flood gates are mainly composed of door bodies, sealing devices, locks, control systems, etc. These components work together to ensure that flood gates can function quickly and effectively when floods come.

[0003] As an important flood prevention facility, flood gates play a vital role in flood prevention and disaster reduction. They have the following advantages: effective flood blocking, rapid response, flexible control, enhanced safety, and reusability. Therefore, the setting of flood gates can improve safety when encountering floods.

[0004] At present, when the existing flood control doors are in use, dirt will accumulate under the door frame, so that the flood control doors will be blocked by the dirt when they are closed, resulting in a large amount of leakage between the flood control door and the door frame. At the same time, since the door frame and the flood control door are fixed in a fitting manner, a gap will still appear between the door frame and the flood control door, making it impossible to pre-clean the door frame and strengthen the sealing function when the existing flood control door and the door frame are matched and docked. Therefore, a device is needed to improve the above problems. Summary of the invention

[0005] In view of the problems in the prior art, the present invention provides a gravity self-sealing device for a flood control gate.

[0006] The technical solution adopted by the present invention to solve its technical problems is: a gravity self-sealing device for a flood control gate, comprising a positioning component, a closing device is slidably installed inside the positioning component, a hand winch is fixedly installed on the top of the closing device, the closing device comprises a vertical groove, a flood control gate, a first rack and a second rack, the vertical groove is symmetrically arranged on both sides of the rear end of the flood control gate, the first rack is symmetrically fixedly installed at the bottom of the front end of the flood control gate, and the second rack is symmetrically fixedly installed at the top of the rear end of the flood control gate, the positioning component comprises a guide device, a supporting device, a synchronizing device and a covering device, the guide device is symmetrically fixedly installed at the front end of the supporting device, the covering device is fixedly installed at the rear end of the supporting device, and the synchronizing device is fixedly installed at the top of the rear end of the supporting device close to the covering device.

[0007] Specifically, the guide device includes a supporting back plate, a winding wheel and a guide wheel, the winding wheel and the guide wheel are respectively rotatably mounted on the rear end of the supporting back plate, a first gear is fixedly mounted at the rear end center of the winding wheel, a connecting rope is fixedly mounted on the outer ring of the winding wheel, a connecting extension rod is fixedly mounted on one end of the connecting rope away from the guide wheel, and a sleeve plate is fixedly mounted on the bottom end of the connecting extension rod;

[0008] When the first gear rotates, it can drive the connecting rope to pull the connecting extension rod to move with the guide wheel as the base point.

[0009] Specifically, the support device includes a gate frame, a guide top frame and a support cavity, the guide top frame is fixedly installed at the top two ends of the gate frame, the support cavity is fixedly installed at the bottom of the two ends of the gate frame, the interior of the support cavity is symmetrically fixed with a return spring, the opposite end of the return spring is fixedly installed with a displacement plate, a guide rod is fixedly installed between the two support cavities, and the guide rod is located in front of the gate frame;

[0010] When the displacement plate is displaced, the silt at the bottom end of the gate frame can be scraped off, and the displacement plate can be reset by a reset spring.

[0011] Specifically, the synchronization device includes a reinforced connecting frame, an L-shaped air cylinder and a first piston rod, the first piston rod is slidably inserted in the rear end of the L-shaped air cylinder, the L-shaped air cylinder is symmetrically fixedly installed on the reinforced connecting frame, the second piston rod is slidably inserted in the side end of the L-shaped air cylinder, a displacement support plate is fixedly installed at one end of the L-shaped air cylinder away from the L-shaped air cylinder, two side end brackets are fixedly installed at one end of the displacement support plate away from the second piston rod, a limiting rod is rotatably installed between the two side end brackets, a bottom plate is fixedly installed on the displacement support plate away from the bottom of the L-shaped air cylinder, and a connecting wing plate is fixedly installed on the top of the reinforced connecting frame close to the displacement support plate;

[0012] When the first piston rod moves toward the inside of the L-shaped gas cylinder, it can drive the second piston rod and the displacement support plate to move synchronously, so that the limiting rod can be inserted into the inside of the vertical groove.

[0013] Specifically, the covering device includes a flip frame, a rear end top frame, a worm gear and a contact stopper, the worm gear is rotatably mounted on the rear end top frame, the flip frame is fixedly mounted between the two worm gears, the contact stopper is fixedly mounted on the rear end top of the flip frame, four contact push plates are fixedly mounted on the inner bottom end of the flip frame, a second gear is rotatably mounted on the rear end bottom of the rear end top frame, and a worm is fixedly mounted on the rear end of the second gear;

[0014] When the second gear rotates, the worm gear and the turning frame can be driven to rotate simultaneously through the worm, so that the front end surface of the turning frame can fit with the rear end surface of the flood control gate.

[0015] Specifically, the flood gate is slidably inserted into the interior of the gate frame, the supporting back plate is symmetrically fixedly installed at the front end of the gate frame, the side end of the connecting extension rod close to the sleeve plate is connected to the displacement plate, the connecting wing plate is fixedly installed behind the opposite end of the guide top frame, and the rear end top frame is symmetrically fixedly installed at the rear top of the gate frame.

[0016] Specifically, keys are fixedly installed at the centers of both ends of the flood control gate, slots are opened on both sides of the inner side of the gate frame, the sleeve plate is slidably sleeved on the guide rod, the bottom end of the displacement plate is fitted with the inner bottom end of the gate frame, and the interior of the support cavity is set in a hollow state.

[0017] Specifically, the interior of the L-shaped air cylinder is set in a hollow state, and a closed cavity is formed between the second piston rod, the L-shaped air cylinder and the first piston rod, the bottom end of the limiting rod is fitted with the top end of the bottom plate, the displacement support plate is movably inserted into the interior of the reinforced connecting frame near the connecting wing plate, and the worm wheel is meshed with the worm.

[0018] Specifically, a plastic gasket is fixedly installed on the front end surface of the flip frame, the limiting rod is vertically aligned with the vertical groove, a placement hole adapted to the displacement plate is opened in the opposite interior of the support cavity, and the flip frame is aligned with the gap between the flood control gate and the gate frame.

[0019] Specifically, the guide top frame also includes a connecting arm, a hydraulic cylinder and an L-shaped support plate. The connecting arm is fixedly installed at the rear end bottom of the guide top frame, the hydraulic cylinder is fixedly installed behind the connecting arm, and the L-shaped support plate is fixedly installed on the side end of the hydraulic cylinder.

[0020] Beneficial effects of the present invention:

[0021] First, when the flood control gate moves toward the inside of the gate frame, the present invention can drive the first rack to pass through the first gear, so that the first gear can drive the winding wheel to rotate, so that the connecting rope can pull the connecting extension rod and the displacement plate to move, so that the dirt attached to the inner bottom end of the gate frame can be scraped off, and at the same time, the dirt can be discharged with the water flow, and when the first rack completely passes the first gear, the displacement plate will automatically reset, so that the displacement plate can be prevented from interfering with the descending flood control gate, thereby completing the pre-cleaning of the inner bottom end of the gate frame.

[0022] Second, when the flood gate of the present invention moves downward, it can drive the second rack to engage with the second gear, so that the worm can drive the worm wheel and the flip frame to rotate at the same time, until the flip frame can fit with the gap between the flood gate and the gate frame, thereby avoiding leakage in the gap between the flood gate and the gate frame. At the same time, the self-locking property between the worm wheel and the worm can prevent the flip frame from being impacted by the water flow, and when the flip frame fits with the flood gate, it can also drive the contact push plate to fit with the flood gate, and the limiting rod is inserted into the vertical groove, so that a support can be formed at the rear end of the flood gate, thereby improving the pressure resistance of the flood gate and completing the work of strengthening the sealing of the flood gate and the gate frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0024] Figure 1 It is a schematic diagram of the three-dimensional structure of the main body of the present invention from a rear perspective;

[0025] Figure 2 It is a schematic diagram of the three-dimensional structure of the main body of the present invention from the front perspective;

[0026] Figure 3 It is a schematic diagram of the three-dimensional structure of the sealing device of the present invention from the front perspective;

[0027] Figure 4 It is a schematic diagram of the three-dimensional structure of the alignment component in the present invention from a rear perspective;

[0028] Figure 5 It is a schematic diagram of the three-dimensional structure of the guide device of the present invention from a front perspective;

[0029] Figure 6 It is a partial cutaway schematic diagram of the supporting device in the present invention;

[0030] Figure 7 It is a schematic diagram of the three-dimensional structure of the synchronization device in the present invention from a rear perspective;

[0031] Figure 8 It is a schematic diagram of the three-dimensional structure of the covering device of the present invention from a rear perspective;

[0032] Fig. 9 This is a schematic diagram of the three-dimensional structure of the covering device of the present invention from a front perspective;

[0033] Fig.10 It is a schematic diagram of the three-dimensional structure from the front perspective of the second embodiment of the guide top frame in the present invention.

[0034] In the figure: 1-closing device, 2-positioning component, 3-hand winch, 4-vertical groove, 5-flood gate, 6-first rack, 7-second rack, 8-guide device, 9-support device, 10-synchronizing device, 11-covering device, 12-first gear, 13-winding wheel, 14-support back plate, 15-connecting rope, 16-guide wheel, 17-connecting extension rod, 18-set plate, 19-guide rod, 20-displacement plate, 21-reset spring, 22-support cavity , 23-gate frame, 24-guide top frame, 25-connecting wing plate, 26-first piston rod, 27-second piston rod, 28-L-type air cylinder, 29-reinforced connecting frame, 30-displacement support plate, 31-side end bracket, 32-bottom plate, 33-limiting rod, 34-turning frame, 35-contact push plate, 36-worm, 37-second gear, 38-rear end top frame, 39-worm wheel, 40-contact stop rod, 41-connecting arm, 42-hydraulic cylinder, 43-L-type support plate. DETAILED DESCRIPTION

[0035] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0036] The present invention is further described below in conjunction with the accompanying drawings.

[0037] Example 1

[0038] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, a gravity self-sealing device for a flood gate of the present invention comprises an alignment component 2, a closing device 1 is slidably installed inside the alignment component 2, a hand winch 3 is fixedly installed on the top of the closing device 1, the closing device 1 comprises a vertical groove 4, a flood gate 5, a first rack 6 and a second rack 7, the vertical groove 4 is symmetrically arranged on both sides of the rear end of the flood gate 5, the first rack 6 is symmetrically fixedly installed at the bottom of the front end of the flood gate 5, the second rack 7 is symmetrically fixedly installed at the top of the rear end of the flood gate 5, the alignment component 2 comprises a guide device 8, a support device 9, a synchronization device 10 and a covering device 11, the guide device 8 is symmetrically fixedly installed at the front end of the support device 9, the covering device 11 is fixedly installed at the rear end of the support device 9, and the synchronization device 10 is fixedly installed at the top of the rear end of the support device 9 close to the covering device 11.

[0039] like Figure 5The guide device 8 includes a supporting back plate 14, a winding wheel 13 and a guide wheel 16. The winding wheel 13 and the guide wheel 16 are rotatably mounted on the rear end of the supporting back plate 14. The first gear 12 is fixedly mounted at the rear end center of the winding wheel 13. A connecting rope 15 is fixedly mounted on the outer ring of the winding wheel 13. A connecting extension rod 17 is fixedly mounted on one end of the connecting rope 15 away from the guide wheel 16. A sleeve plate 18 is fixedly mounted on the bottom end of the connecting extension rod 17. Through the setting of the guide wheel 16, the connecting rope 15 can be supported to pull the connecting extension rod 17 to move in a straight line.

[0040] When the first gear 12 rotates, it can drive the connecting rope 15 to pull the connecting extension rod 17 to move with the guide wheel 16 as the base point.

[0041] like Figure 6 The supporting device 9 includes a gate frame 23, a guide top frame 24 and a supporting cavity 22. The guide top frame 24 is fixedly mounted at both ends of the top of the gate frame 23. The supporting cavity 22 is fixedly mounted at both ends of the bottom of the gate frame 23. A return spring 21 is symmetrically fixedly mounted inside the supporting cavity 22. A displacement plate 20 is fixedly mounted at the opposite end of the return spring 21. A guide rod 19 is fixedly mounted between the two supporting cavities 22, and the guide rod 19 is located in front of the gate frame 23. By setting the guide top frame 24, the flood control gate 5 can be prevented from colliding with the top of the gate frame 23 when docking with the gate frame 23;

[0042] When the displacement plate 20 is displaced, the silt at the bottom end of the gate frame 23 can be scraped off, and the displacement plate 20 can be reset by the reset spring 21 .

[0043] like Figure 7 The synchronization device 10 includes a reinforced connecting frame 29, an L-shaped air cylinder 28 and a first piston rod 26. The first piston rod 26 is slidably inserted into the rear end of the L-shaped air cylinder 28. The L-shaped air cylinder 28 is symmetrically fixedly installed on the reinforced connecting frame 29. The second piston rod 27 is slidably inserted into the side end of the L-shaped air cylinder 28. A displacement support plate 30 is fixedly installed at one end of the L-shaped air cylinder 28 away from the L-shaped air cylinder 28. Two side end brackets 31 are fixedly installed at one end of the displacement support plate 30 away from the second piston rod 27. A limiting rod 33 is rotatably installed between the two side end brackets 31. A bottom plate 32 is fixedly installed at the bottom of the displacement support plate 30 away from the L-shaped air cylinder 28. A connecting wing plate 25 is fixedly installed on the top of the reinforced connecting frame 29 close to the displacement support plate 30. The material of the first piston rod 26 is iron, so that it is easy to contact the blocking rod 40 and adsorb and fit with the first piston rod 26;

[0044] When the first piston rod 26 moves toward the inside of the L-shaped air cylinder 28 , it can drive the second piston rod 27 and the displacement support plate 30 to move synchronously, so that the limiting rod 33 can be inserted into the inside of the vertical groove 4 .

[0045] like Figure 8 and Fig. 9 The covering device 11 includes a flip frame 34, a rear end top frame 38, a worm gear 39 and a contact stopper 40. The worm gear 39 is rotatably mounted on the rear end top frame 38. The flip frame 34 is fixedly mounted between the two worm gears 39. The contact stopper 40 is fixedly mounted on the rear end top of the flip frame 34. Four contact push plates 35 are fixedly mounted on the inner bottom of the flip frame 34. A second gear 37 is rotatably mounted on the rear end bottom of the rear end top frame 38. A worm 36 is fixedly mounted on the rear end of the second gear 37. A magnetic suction sheet is fixedly mounted on the front end surface of the contact stopper 40, so that when the flip frame 34 rotates upward toward the rear end, the first piston rod 26 can be driven to move out from the inside of the L-shaped air cylinder 28.

[0046] When the second gear 37 rotates, the worm gear 39 and the turnover frame 34 can be driven to rotate simultaneously through the worm 36 , so that the front end surface of the turnover frame 34 can fit with the rear end surface of the flood control gate 5 .

[0047] The flood gate 5 is slidably inserted into the interior of the gate frame 23, the support back plate 14 is symmetrically fixedly installed at the front end of the gate frame 23, the side end of the connecting extension rod 17 close to the sleeve plate 18 is connected to the displacement plate 20, the connecting wing plate 25 is fixedly installed behind the opposite end of the guide top frame 24, and the rear end top frame 38 is symmetrically fixedly installed at the rear top of the gate frame 23. The centers of both ends of the flood gate 5 are fixedly installed with card keys, and the inner sides of the gate frame 23 are provided with card grooves. The sleeve plate 18 is slidably sleeved on the guide rod 19, and the bottom end of the displacement plate 20 is fitted with the inner bottom end of the gate frame 23. The interior of the support cavity 22 is hollow State setting, the interior of the L-shaped air cylinder 28 is set in a hollow state, and a closed cavity is formed between the second piston rod 27, the L-shaped air cylinder 28 and the first piston rod 26, the bottom end of the limiting rod 33 is fitted with the top end of the bottom plate 32, the displacement support plate 30 is movably inserted into the interior of the reinforced connecting frame 29 near the connecting wing plate 25, the worm gear 39 is engaged with the worm 36, and a plastic gasket is fixedly installed on the front end surface of the flip frame 34, the limiting rod 33 is vertically aligned with the vertical groove 4, and a placement hole compatible with the displacement plate 20 is opened in the opposite interior of the support cavity 22, and the flip frame 34 is aligned with the gap between the flood control gate 5 and the gate frame 23.

[0048] The working principle of the embodiment 1 is as follows: when in use, the gate frame 23 is first installed in a designated area, and then the hand chain hoist 3 is installed on the external beam. The flood gate 5 is driven to move up and down as a whole by operating the hand chain hoist 3. When the flood gate 5 is kept in a normal state, it can be located above the gate frame 23, so that water can flow normally through the inside of the gate frame 23. When a flood occurs, the hand chain hoist 3 can be operated to release the flood gate 5 to move downward. At this time, the flood gate 5 can be slidably plugged into the inside of the gate frame 23, so that the flood gate 5 can cooperate with the gate frame 23 to cut off the water flow;

[0049] When the flood gate 5 moves downward, the keys at the centers of both ends of the flood gate 5 can be driven to slide in the card slots inside the gate frame 23, so that the flood gate 5 can be ensured to move downward in a straight line. Subsequently, when the flood gate 5 moves downward, the first rack 6 can be driven to contact the first gear 12, so that the first gear 12 rotates. When the first gear 12 rotates, the winding wheel 13 can be driven to rotate, so that the winding wheel 13 can be pulled by the connecting rope 15 to pull the connecting extension rod 17 to move. Through the setting of the wire wheel 16, it is convenient for the connecting rope 15 to pull the connecting extension rod 17 to move with the wire wheel 16 as the base point. When the connecting extension rod 17 moves, the displacement plate 20 can be driven to move to the center of the gate frame 23. The bottom end of the displacement plate 20 is attached to the inner bottom end of the gate frame 23, so that when the displacement plate 20 is displaced, the dirt attached to the inner bottom end of the gate frame 23 can be scraped off, and the dirt can be discharged with the water flow;

[0050] The sleeve plate 18 is slidably sleeved on the guide rod 19, so that the displacement plate 20 can be supported to move in a straight line to prevent the displacement plate 20 from being skewed. Subsequently, when the first rack 6 passes through the first gear 12, the first gear 12 will lose its meshing force, and the elasticity of the reset spring 21 will drive the displacement plate 20 to quickly reset. When the displacement plate 20 is reset, the connecting rope 15 can be pulled by the connecting extension rod 17 to drive the winding wheel 13 and the first gear 12 to rotate and reset. Moreover, when the displacement plate 20 is reset, it can be moved to the inside of the supporting cavity 22, so that the flood control gate 5 can avoid interference with the displacement plate 20.

[0051] When the flood gate 5 moves downward, it can also drive the second rack 7 to move downward along the surface of the second gear 37, so that the second gear 37 and the worm 36 can be driven to rotate simultaneously. When the worm 36 rotates, the worm wheel 39 can be driven to rotate, and when the worm wheel 39 rotates, the flip frame 34 can be driven to rotate downward, so that the flip frame 34 can be easily fitted with the flood gate 5 and the gate frame 23, and when the flip frame 34 rotates downward to a vertical state, the plastic gasket at the front end can fit with the gap between the flood gate 5 and the gate frame 23, so as to avoid leakage in the gap between the flood gate 5 and the gate frame 23;

[0052] The self-locking property between the worm wheel 39 and the worm 36 can prevent the flip frame 34 from rotating again. At the same time, when the flip frame 34 rotates downward to a vertical state, it can drive the contact push plate 35 to fit with the rear end surface of the flood gate 5, so that an auxiliary support can be formed at the rear end of the flood gate 5. Moreover, when the contact push plate 35 fits with the flood gate 5, it can also drive the contact blocking rod 40 to squeeze the first piston rod 26 completely into the L-shaped air cylinder 28, so that the second piston rod 27 can drive the displacement support plate 30 and the limiting rod 33 to move outward to the extreme position, so that the limiting rod 33 can be inserted into the vertical groove 4, so that the limiting rod 33 can also form a support at the rear end of the flood gate 5, thereby improving the compressive strength of the flood gate 5.

[0053] When the device is in use, when the flood gate 5 moves downward, the first rack 6 can be driven to pass through the first gear 12, so that the winding wheel 13 can be pulled by the connecting rope 15 to connect the extension rod 17 and the displacement plate 20 to move, so that the dirt on the bottom end of the inner side of the gate frame 23 can be scraped off, so that the bottom end of the flood gate 5 and the inner bottom end of the gate frame 23 can be closely fitted. At the same time, when the flood gate 5 moves downward, the second rack 7 can be driven to move on the second gear 37, so that the second gear 37 and the worm 36 can be driven to rotate at the same time, and when the worm 36 rotates, the worm wheel 39 and the flip frame 34 can be driven to rotate, so that the flip frame 34 can block the gap between the flood gate 5 and the gate frame 23 to avoid leakage, and when the flip frame 34 is in working state, it can drive the contact push plate 35 to form an auxiliary support at the bottom of the rear end of the flood gate 5.

[0054] The contact stopper rod 40 can squeeze the first piston rod 26 into the interior of the L-shaped air cylinder 28, so that the limiting rod 33 can be inserted into the interior of the vertical groove 4, so that an auxiliary support can be formed at the top of the rear end of the flood control gate 5, completing the work of strengthening the support of the rear end of the flood control gate 5. When the device is in use, when the flood control gate 5 moves upward, it can drive the second rack 7 to pass through the second gear 37, so that the second gear 37 and the worm 36 can be driven to rotate in the opposite direction, so that the worm gear 39 can drive the flip frame 34 to rotate upward, and when the flip frame 34 rotates upward to reset, it can drive the contact push plate 35 to disengage from the flood control gate 5. At the same time, a magnetic suction sheet is fixedly installed at the front end of the contact stopper rod 40, and the first movable The plug rod 26 is made of iron. When the flip frame 34 drives the contact blocking rod 40 to rotate upward, the first piston rod 26 can be pulled out from the inside of the L-shaped air cylinder 28, so that the second piston rod 27 and the limiting rod 33 can be displaced toward the inner center direction of the reinforced connecting frame 29. At the same time, when the flood gate 5 moves upward, the limiting rod 33 can be driven to rotate upward, so that the jamming phenomenon between the flood gate 5 and the limiting rod 33 can be avoided. In addition, when the limiting rod 33 maintains the normal state, the bottom plate 32 can form a support at the bottom end of the limiting rod 33, so that the limiting rod 33 can be located in a horizontal state inside the vertical groove 4, which is convenient for the limiting rod 33 to block the rear end of the flood gate 5 and complete the work.

[0055] Example 2

[0056] On the basis of Example 1, Fig.10 As shown, the guide frame 24 also includes a connecting arm 41, a hydraulic cylinder 42 and an L-shaped support plate 43. The connecting arm 41 is fixedly installed at the bottom of the rear end of the guide frame 24, the hydraulic cylinder 42 is fixedly installed behind the connecting arm 41, and the L-shaped support plate 43 is fixedly installed on the side end of the hydraulic cylinder 42.

[0057] When implementing this embodiment, when the turning frame 34 rotates upward to a horizontal state, the hydraulic cylinder 42 can be started by connecting the piston rod inside the hydraulic cylinder 42 with the L-shaped support plate 43, driving the L-shaped support plate 43 to move toward one end close to the turning frame 34, so that the L-shaped support plate 43 can be moved to the bottom of the turning frame 34, and can form a support at the bottom end of the turning frame 34, which can share part of the pressure between the worm gear 39 and the worm 36, thereby improving the placement stability of the turning frame 34. Subsequently, when the turning frame 34 needs to work, the hydraulic cylinder 42 can be started to drive the L-shaped support plate 43 to be retracted, so that the L-shaped support plate 43 can avoid interference with the turning frame 34 and complete the work.

[0058] Although 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 appended claims and their equivalents.

Claims

1. A gravity self-sealing device for a flood control gate, comprising a positioning component (2), a closing device (1) is slidably mounted inside the positioning component (2), a hand chain hoist (3) is fixedly mounted on the top of the closing device (1), and is characterized in that: The closing device (1) comprises a vertical groove (4), a flood gate (5), a first rack (6) and a second rack (7); the vertical groove (4) is symmetrically arranged on both sides of the rear end of the flood gate (5); the first rack (6) is symmetrically fixedly mounted on the bottom of the front end of the flood gate (5); the second rack (7) is symmetrically fixedly mounted on the top of the rear end of the flood gate (5); the alignment component (2) comprises a guide device (8), a support device (9), a synchronization device (10) and a covering device (11); the guide device (8) is symmetrically fixedly mounted on the front end of the support device (9); the covering device (11) is fixedly mounted on the rear end of the support device (9); and the synchronization device (10) is fixedly mounted on the top of the rear end of the support device (9) close to the covering device (11).

2. A flood gate gravity self-sealing device according to claim 1, characterized in that: The guide device (8) comprises a supporting back plate (14), a winding wheel (13) and a guide wheel (16); the winding wheel (13) and the guide wheel (16) are respectively rotatably mounted on the rear end of the supporting back plate (14); a first gear (12) is fixedly mounted at the rear end center of the winding wheel (13); a connecting rope (15) is fixedly mounted on the outer ring of the winding wheel (13); a connecting extension rod (17) is fixedly mounted at one end of the connecting rope (15) away from the guide wheel (16); a sleeve plate (18) is fixedly mounted at the bottom end of the connecting extension rod (17); When the first gear (12) rotates, it can drive the connecting rope (15) to pull the connecting extension rod (17) to move with the guide wheel (16) as the base point.

3. A gravity self-sealing device for flood control gate according to claim 2, characterized in that: The support device (9) comprises a gate frame (23), a guide top frame (24) and a support cavity (22), wherein the guide top frame (24) is fixedly mounted at the top two ends of the gate frame (23), and the support cavity (22) is fixedly mounted at the bottom of the two ends of the gate frame (23), a return spring (21) is symmetrically fixedly mounted inside the support cavity (22), a displacement plate (20) is fixedly mounted at the opposite end of the return spring (21), and a guide rod (19) is fixedly mounted between the two support cavities (22), and the guide rod (19) is located in front of the gate frame (23); The displacement plate (20) can scrape away the silt at the bottom end of the inner part of the gate frame (23) when displacing.

4. A gravity self-sealing device for flood control gate according to claim 3, characterized in that: The synchronization device (10) comprises a reinforced connecting frame (29), an L-shaped air cylinder (28) and a first piston rod (26), wherein the first piston rod (26) is slidably inserted into the rear end of the L-shaped air cylinder (28), the L-shaped air cylinder (28) is symmetrically fixedly mounted on the reinforced connecting frame (29), a second piston rod (27) is slidably inserted into the side end of the L-shaped air cylinder (28), a displacement support plate (30) is fixedly mounted on the end of the L-shaped air cylinder (28) away from the L-shaped air cylinder (28), two side end brackets (31) are fixedly mounted on the end of the displacement support plate (30) away from the second piston rod (27), a limiting rod (33) is rotatably mounted between the two side end brackets (31), a bottom plate (32) is fixedly mounted on the bottom of the displacement support plate (30) away from the L-shaped air cylinder (28), and a connecting wing plate (25) is fixedly mounted on the top of the reinforced connecting frame (29) close to the displacement support plate (30); When the first piston rod (26) moves toward the inside of the L-shaped air cylinder (28), it can drive the second piston rod (27) and the displacement support plate (30) to move synchronously, so that the limiting rod (33) can be inserted into the inside of the vertical groove (4).

5. A gravity self-sealing device for flood control gate according to claim 4, characterized in that: The covering device (11) comprises a flip frame (34), a rear end top frame (38), a worm gear (39) and a contact stop rod (40); the worm gear (39) is rotatably mounted on the rear end top frame (38); the flip frame (34) is fixedly mounted between two worm gears (39); the contact stop rod (40) is fixedly mounted on the rear end top of the flip frame (34); four contact push plates (35) are fixedly mounted on the inner bottom end of the flip frame (34); a second gear (37) is rotatably mounted on the rear end bottom of the rear end top frame (38); a worm (36) is fixedly mounted on the rear end of the second gear (37); When the second gear (37) rotates, the worm gear (39) and the turning frame (34) can be driven to rotate simultaneously through the worm (36), so that the front end surface of the turning frame (34) can fit with the rear end surface of the flood control gate (5).

6. A gravity self-sealing device for flood control gate according to claim 5, characterized in that: The flood control gate (5) is slidably inserted into the interior of the gate frame (23), the supporting back plate (14) is symmetrically fixedly mounted on the front end of the gate frame (23), the connecting extension rod (17) is connected to the displacement plate (20) at the side end close to the sleeve plate (18), the connecting wing plate (25) is fixedly mounted behind the opposite end of the guide top frame (24), and the rear end top frame (38) is symmetrically fixedly mounted on the rear top of the gate frame (23).

7. A flood gate gravity self-sealing device according to claim 6, characterized in that: The flood control gate (5) is fixedly provided with a key at the center of both ends, and slots are provided on both sides of the interior of the gate frame (23). The sleeve plate (18) is slidably sleeved on the guide rod (19), and the bottom end of the displacement plate (20) is fitted with the inner bottom end of the gate frame (23), and the interior of the support cavity (22) is arranged in a hollow state.

8. A gravity self-sealing device for flood control gate according to claim 7, characterized in that: The interior of the L-shaped air cylinder (28) is arranged in a hollow state, and a closed cavity is formed between the second piston rod (27), the L-shaped air cylinder (28) and the first piston rod (26); the bottom end of the limiting rod (33) is in contact with the top end of the bottom plate (32); the displacement support plate (30) is movably inserted into the interior of the strengthening connecting frame (29) close to the connecting wing plate (25); and the worm wheel (39) is meshed with the worm (36).

9. A gravity self-sealing device for flood control gate according to claim 8, characterized in that: A plastic gasket is fixedly mounted on the front end surface of the flip frame (34), the limiting rod (33) is vertically aligned with the vertical groove (4), a placement hole adapted to the displacement plate (20) is provided in the opposite interior of the support cavity (22), and the flip frame (34) is aligned with the gap between the flood control gate (5) and the gate frame (23).

10. A gravity self-sealing device for flood control gate according to claim 9, characterized in that: The guide top frame (24) further comprises a connecting arm (41), a hydraulic cylinder (42) and an L-shaped support plate (43); the connecting arm (41) is fixedly mounted at the bottom of the rear end of the guide top frame (24); the hydraulic cylinder (42) is fixedly mounted behind the connecting arm (41); and the L-shaped support plate (43) is fixedly mounted on the side end of the hydraulic cylinder (42).

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