Gate sealing mechanism and flap gate

Abstract

The utility model relates to the technical field of flap gates, in particular to a gate sealing mechanism and a flap gate. The sealing piece is used for being connected to the side wall of the gate plate and located between the gate plate and the wall face of a gate opening; a containing groove formed in the width direction of the gate plate is formed in the side wall of the gate plate. A pushing piece located on the side, away from the wall face of the water gate, of the sealing piece is arranged at the containing groove. The pushing piece is used for enabling the sealing piece to be in an abutting state with the wall face of the water gate. By means of the pushing piece, the sealing piece and the wall face of the water gate can be always kept in an abutting state, the sealing performance of the sealing piece can be guaranteed without a disassembly and replacement mode even if the sealing piece is abraded, the step of frequent disassembly and assembly is omitted, the service life of the sealing piece is prolonged, and the sealing piece does not need to be replaced when gaps exist.

Description

Technical Field

[0001] This utility model relates to the field of flap gate technology, specifically to a gate sealing mechanism and a flap gate. Background Technology

[0002] A flap gate is used at the sluice gate of a river. A flap gate is usually composed of a gate plate, a drive mechanism, and a control system. The gate plate is equipped with sealing elements on both sides that fit and seal against the side walls of the sluice gate. The drive mechanism is composed of a hydraulic cylinder. The piston rod of the hydraulic cylinder is hinged to one side of the gate plate, and the cylinder body end away from the piston rod is hinged to the bottom of the sluice gate. The oil inlet and outlet ports of the hydraulic cylinder are connected to the hydraulic pump station of the control system through oil pipes. The control system controls the extension and retraction of the piston rod of the hydraulic cylinder to control the flap gate.

[0003] The existing sealing elements on the side wall of the gate are usually rubber sealing sheets. During installation, the sealing sheets are usually directly connected to the side wall of the gate using fasteners. However, as the gate rotates continuously, the friction between the sealing sheet and the gate wall causes wear on the sealing sheet and even the gate wall. After wear, the gap between the two gradually increases, resulting in a decrease in sealing effect and requiring frequent maintenance, which is quite troublesome. Utility Model Content

[0004] This utility model provides a gate sealing mechanism and a flap gate, which can overcome the defects of the prior art where friction between the sealing sheet and the gate wall causes wear on the sealing sheet and even the gate wall, and the gap between the two gradually increases after wear, resulting in a reduced sealing effect, requiring frequent maintenance, and being quite troublesome.

[0005] According to the present invention, a gate sealing mechanism includes a sealing sheet for connecting to the side wall of the gate plate and located between the gate plate and the gate opening wall.

[0006] The gate is provided with a receiving groove along the width of the gate on its side wall; a pusher is provided in the receiving groove on the side of the sealing sheet away from the gate wall; the pusher is used to keep the sealing sheet in a tight abutment against the gate wall.

[0007] The pusher of this invention ensures that the sealing sheet remains firmly pressed against the gate wall, eliminating the need for disassembly and replacement even after wear. This not only saves on frequent disassembly and reassembly but also extends the lifespan of the sealing sheet, eliminating the need for replacement when gaps exist. Furthermore, existing sealing sheets are installed by operators based on the gate size and the gate plate size. Once the installation holes connecting the sealing sheet and the gate plate are misaligned, it is difficult to correct the error. Human error in installation necessitates adjustments until a good seal is achieved. The pusher of this invention overcomes this limitation. Even if installation errors result in a large gap between the sealing sheet and the gate wall, the pusher can directly solve this problem, thus reducing installation difficulty.

[0008] Preferably, the pusher includes a mounting base that slides along the length of the receiving groove; a screw is rotatably fitted on the side of the mounting base away from the sealing sheet; the screw is arranged along the length of the receiving groove, and the inner side of the receiving groove is provided with a threaded groove for the screw to engage.

[0009] In this invention, the screw is designed so that rotating the screw can move the abutment plate toward the sealing sheet, allowing the abutment plate to press the sealing sheet against the wall of the gate. The screw can also adjust the tightness between the sealing sheet and the gate wall, maintaining a seal while minimizing wear.

[0010] Preferably, the side of the abutment closest to the sealing sheet is arc-shaped.

[0011] In this invention, the side of the abutment plate is arc-shaped, which prevents damage to the side of the abutment plate that contacts the sealing sheet when it is pressed against the sealing sheet.

[0012] Preferably, the gate is provided with an operating port that communicates with the receiving groove, and the operating port is at the same height as the screw; a safety door for opening and closing the operating port is connected to the operating port.

[0013] In this invention, the operation port and safety door allow operators to control the screw through the operation port and control the opening and closing of the operation port through the safety door, preventing unauthorized personnel from operating the screw and affecting the sealing performance of the gate.

[0014] Preferably, the side wall of the gate is provided with slots located on both sides of the receiving groove and arranged along the height direction of the gate, and the slots also penetrate the upper end face of the gate; a strip is sealed and inserted into the slot; a sealing plate is connected to both strips; a sealing plate is provided on the upper end face of the gate to restrict the strips in the slots; both the sealing plate and the gate are provided with mounting holes for connecting with fasteners.

[0015] In this invention, the sealing fit between the insert and the slot allows the sealing sheet to be removed simply by removing the sealing plate when replacing it. This eliminates the need for the sealing sheet to be connected to the gate plate with a large number of fasteners, which makes disassembly and assembly more complicated than in the prior art.

[0016] A flap gate includes a gate, a sealing mechanism, and any of the driving mechanisms described above. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the gate body installed at the gate opening in Example 1;

[0018] Figure 2 This is a bottom perspective view of the drive mechanism in Example 1;

[0019] Figure 3 This is a top perspective view of the drive mechanism in Example 1;

[0020] Figure 4 This is a schematic diagram of the second protective component in Example 1 after it has been opened;

[0021] Figure 5 This is a schematic diagram of the first sub-shell after it has been opened in Example 1;

[0022] Figure 6 This is a schematic diagram of the first protective component, the clamping component, and the second protective component in Embodiment 1;

[0023] Figure 7 This is an exploded view of the locking component in Example 1;

[0024] Figure 8 This is a schematic diagram of the limiting member in Example 1;

[0025] Figure 9 for Figure 8 Enlarged schematic diagram of the limiting component in the middle;

[0026] Figure 10 This is a schematic diagram showing the separation of the gate and sealing mechanism in Example 1;

[0027] Figure 11 for Figure 10 Enlarged schematic diagram of the central sealing mechanism. Detailed Implementation

[0028] To further understand the content of this utility model, a detailed description of the utility model is provided in conjunction with the embodiments. It should be understood that the embodiments are merely illustrative and not limiting of the utility model.

[0029] Example 1

[0030] like Figure 1-11As shown, this embodiment provides a flap gate, which includes a gate body 100. The gate body 100 includes a gate plate 120 for being disposed at a gate opening 110. The gate plate 120 is disposed along the width direction of the gate opening 110. A drive mechanism 130 for driving the gate plate 120 to flip is provided at the gate opening 110.

[0031] The drive mechanism 130 includes a hydraulic cylinder 231 connected to the gate 110 and having a piston rod 232 and an interface 538; a first protective component 233 is provided at the hydraulic cylinder 231; the first protective component 233 includes a protective shell 2330 connected to the hydraulic cylinder 231; the protective shell 2330 has a receiving cavity 5337 for accommodating the interface 538 inside, and an opening communicating with the receiving cavity 5337 is provided on one side, and a sealing frame 2333 that cooperates with the side wall of the hydraulic cylinder 231 is provided at the opening; a through-hole 5336 for the oil pipe 237 to pass through is provided on the side of the protective shell 2330 away from the sealing frame 2333, and a sealing ring 5338 is provided at the through-hole 5336 to seal the gap between the oil pipe 237 and the through-hole 5336.

[0032] In this embodiment, the first protective component 233 covers the interface 538 of the hydraulic cylinder 231 through the protective shell 2330 with the receiving cavity 5337. The sealing frame 2333 seals the gap between the receiving cavity 5337 and the hydraulic cylinder 231. Simultaneously, the protective shell 2330 has a through-hole 5336 into which the oil supply pipe 237 extends and connects to the interface 538. A sealing ring 5338 at the through-hole 5336 seals the gap between the oil pipe 237 and the through-hole 5336. When the flap gate is opened and water floods the hydraulic cylinder 231, the joint 5370 between the interface 538 and the oil pipe 237 will not come into contact with the water flow, preventing corrosion and aging or contamination of the hydraulic oil by water impurities. Furthermore, shielding this area also prevents sunlight exposure and slows down aging. Moreover, the protective shell 2330 and the sealing ring 5338... The clamping component 238 provides a limiting clamp to the part of the oil pipe 237 near the joint 5370. When the hydraulic cylinder 231 drives the gate 120 to rotate, causing the oil pipe 237 to undergo torsional or bending deformation, clamping at this part can reduce the degree of deformation to a certain extent and protect the joint between the rigid joint 5370 and the soft oil pipe 237. The clamping component 235 can clamp the two sub-rings 53380 of the sealing ring 5338 by rotating the bolt 6357, which further improves the sealing performance between the sealing ring 5338 and the oil pipe 237, and can be adapted to oil pipes 237 of different diameters to improve applicability and versatility. The second protective component 236 can cover several fasteners of the clamping component 235 and the sealing ring 5338 of the first protective component 233 to prevent severe aging caused by direct sunlight and ensure service life.

[0033] In this embodiment, the protective shell 2330 is arranged along the length of the hydraulic cylinder 231 and is composed of a first sub-shell 2331 and a second sub-shell 2332 arranged symmetrically. The first sub-shell 2331 and the second sub-shell 2332 are hinged to each other at the ends away from the piston rod 232, and a locking member 234 is provided at the end near the piston rod 232. The fitting parts of the first sub-shell 2331 and the second sub-shell 2332 are provided with sealing strips 7339 located inside the receiving cavity 5337. There are two through holes 5336 arranged along the length of the protective shell 2330, and each is divided into two by the first sub-shell 2331 and the second sub-shell 2332. The first sub-shell 2331 and the second sub-shell 2332 divide the sealing ring 5338 and the sealing frame 2333 into two sub-rings 53380 and two sub-frames 3334, respectively.

[0034] The arrangement of the first sub-shell 2331, the second sub-shell 2332, and the locking element 234 in this embodiment allows the first sub-shell 2331 and the second sub-shell 2332 to open and close like hinges, and to remain closed by the locking element 234. This allows the oil pipe 237 to be directly inserted between the two sub-rings 53380 during installation, followed by closing the first sub-shell 2331 and the second sub-shell 2332, and maintaining the closed state by the locking element 234. At this point, the opening 5336 is sealed. Finally, the seal is... The sealing frame 2333 and the hydraulic cylinder 231 work together to achieve a seal, completing the installation and making installation more convenient without the need for pipe insertion. The sealing strip 7339, sealing frame 2333, and sealing ring 5338 are all made of known rubber materials for sealing components, while the strap 2335 is made of anti-slip rubber. The sub-ring 53380 of the sealing ring 5338 is fixed at the through-hole 5336, so clamping the sub-ring 53380 does not affect the seal between the sealing ring 5338 and the through-hole 5336. Figure 5 It can be seen that the length of the sealing ring 5338 is greater than the thickness of the protective shell 2330. The two ends of the sealing ring 5338 extend into and out of the protective shell 2330. The groove 6351 matches the part of the sealing ring 5338 that extends out of the protective shell 2330. Therefore, the clamping assembly 235 can clamp the sealing ring 5338. The side of the sub-frame 3334 of the sealing frame 2333 that is in contact with the hydraulic cylinder 231 is an arc-shaped surface to ensure sealing.

[0035] In this embodiment, the locking member 234 includes a fixing seat 7340 connected to the end of the first sub-shell 2331; the fixing seat 7340 is provided with a sliding cavity 7341; the sliding cavity 7341 is arranged along the length direction of the protective shell 2330, passing through one end away from the first sub-shell 2331 and one side near the second sub-shell 2332 and forming an opening; a sliding seat 7343 is slidably fitted at the sliding cavity 7341; a cover plate 7347 for sealing the opening at the end of the fixing seat 7340 is provided at the fixing seat 7340; a button 7344 passing through the cover plate 7347 is provided at the sliding seat 7343; The moving seat 7343 is provided with a locking block 7346 that extends out of the side wall opening of the fixed seat 7340 and extends to the end of the second sub-shell 2332; the locking block 7346 is provided with a locking groove 7345 arranged in the length direction of the sliding cavity 7341; the end of the second sub-shell 2332 is provided with a locking frame 7349 for cooperating with the locking groove 7345; the sliding cavity 7341 is provided with a spring 7342 that abuts against the sliding seat 7343, and the spring 7342 is used to keep the locking frame 7349 cooperating with the locking groove 7345; the locking block 7346 is provided with an inclined surface 7348 near the side wall of the second sub-shell 2332.

[0036] With the locking element 234 in this embodiment, when the first sub-shell 2331 and the second sub-shell 2332 tend to close, the locking frame 7349 of the second sub-shell 2332 will abut against the inclined surface 7348 of the locking block 7346, thereby displacing the locking block 7346 and compressing the spring 7342. After the locking frame 7349 aligns with the locking slot 7345 of the locking block 7346, the spring 7342 returns to its original position and the locking block 7346 is restored, restricting the locking frame 7349 within the locking slot 7345. At this time, the first sub-shell 2331 and the second sub-shell 2332 cannot be separated, completing the quick locking in the closed state. To unlock, simply press the button 7344 to move the locking block 7346, causing the locking frame 7349 to disengage from the locking slot 7345, thus separating the first sub-shell 2331 and the second sub-shell 2332. Figure 2 , 3 4, 6, and 8 are all card blocks 7346 that cooperate with card frames 7349 to keep the first subshell 2331 and the second subshell 2332 in a closed state.

[0037] In this embodiment, a strap 2335 is connected to the side wall of the first sub-shell 2331 away from the second sub-shell 2332; the strap 2335 is arranged along the width direction of the protective shell 2330 and has multiple spaced hooks 33350; a hook 33320 is provided on the side wall of the second sub-shell 2332 away from the first sub-shell 2331; the hook 33320 is used to allow the strap 2335 to wrap around the side wall of the hydraulic cylinder 231 and engage with any hook 33350; both the first sub-shell 2331 and the second sub-shell 2332 are provided with arc-shaped clamping pieces 53310 that engage with the side wall of the interface 538; the clamping pieces 53310 of the first sub-shell 2331 and the second sub-shell 2332 are used to jointly clamp the interface 538.

[0038] The straps 2335 and hooks 33320 in this embodiment allow the straps 2335 of the first sub-shell 2331 to engage with the hooks 33320 of the second sub-shell 2332 after passing around the hydraulic cylinder 231. This prevents the protective shell 2330 from shifting away from the hydraulic cylinder 231, thus preventing the seal between the sealing frame 2333 and the hydraulic cylinder 231 from failing and further improving the sealing effect between the protective shell 2330 and the hydraulic cylinder 231. Furthermore, the clamping piece 53310 allows for better clamping of the first sub-shell 2332. When the second sub-shell 2332 is closed, the clamping plates 53310 of both will clamp the interface 538 together. Since the diameter of the connector 5370 of the oil pipe 237 is larger than the diameter of the interface 538, the clamping plate 53310 will be located between the hydraulic cylinder 231 and the connector 5370. When clamping the two interfaces 538, the entire protective shell 2330 will not flip around the axis of the hydraulic cylinder 231 or move along the axial direction of the hydraulic cylinder 231 after it is closed, thereby ensuring the stability and sealing of the entire first protective assembly 233.

[0039] In this embodiment, the bottom of the gate 110 is provided with a plurality of bases 111 and bearing seats 112; one end face of the gate plate 120 near the bottom of the gate 110 is rotatably engaged with the plurality of bases 111; one end of the hydraulic cylinder 231 away from the piston rod 232 is rotatably engaged with the bearing seat 112; one side of the gate plate 120 is provided with a hinge seat 1021 that is rotatably engaged with the end of the piston rod 232.

[0040] The base 111 and bearing seat 112 in this embodiment enable the base 111 to support the gate 120 and rotate the gate 120, and the bearing seat 112 to support the hydraulic cylinder 231 and the force applied to the hydraulic cylinder 231 when the gate 120 rotates.

[0041] It should be noted that only a portion of the oil pipe 237 is shown in the attached diagram. In practical applications, the oil pipe 237 can be connected to a hydraulic pump station, and the hydraulic pump station can be controlled by a known control system to control the extension and retraction of the piston rod 232 of the hydraulic cylinder 231, thereby controlling the flipping of the gate 120 and the opening and closing of the gate 110. The bottom height of the gate 110 and the height of the base 111 should be lower than the shallowest point of the water flow, and the gate 110 should be provided with a seal that matches the side of the gate 120 that blocks the water flow to prevent water from flowing through the gaps in the base 111.

[0042] Example 2

[0043] This embodiment differs from Embodiment 1 in that a clamping assembly 235 is provided at the protective shell 2330; the clamping assembly 235 includes clamping plates 6350 respectively disposed at the first sub-shell 2331 and the second sub-shell 2332 and slidably engaged along the width direction of the protective shell 2330; a plurality of sliding rods 7353 are provided on the side of the first sub-shell 2331 and the second sub-shell 2332 away from the sealing frame 2333, spaced apart along the length direction of the protective shell 2330; the clamping plates 6350 are provided with sliding rods 7353 arranged along the width direction of the protective shell 2330 for sliding engagement. The sliding groove 6352 is provided; the end of the sliding rod 7353 is provided with a limiting plate 6354; a groove 6351 for cooperating with the sub-ring 53380 is provided between the two clamping plates 6350; a first connecting cylinder 6355 and a second connecting cylinder 6356 are respectively provided at the end face of the two clamping plates 6350 away from the protective shell 2330; a bolt 6357 passes through the second connecting cylinder 6356; the bolt 6357 is threadedly engaged with the first connecting cylinder 6355 to enable the two clamping plates 6350 to have a tendency to move relative to each other, so as to clamp the sealing ring 5338.

[0044] By using the clamping assembly 235 in this embodiment, the clamping plates 6350 located at the first sub-shell 2331 and the second sub-shell 2332 can be relatively or oppositely displaced when the bolt 6357 is rotated. When they are relatively displaced, they will clamp the two sub-rings 53380 of the sealing ring 5338, which greatly improves the sealing performance between the sealing ring 5338 and the oil pipe 237. Moreover, the clamping assembly 235 allows the first protective assembly 233 to be adapted to oil pipes 237 of different diameters, thereby improving its applicability. The limiting plate 6354 and the slide rod 7353 are connected by fasteners such as screws.

[0045] In this embodiment, a second protective component 236 is provided at the protective shell 2330; the second protective component 236 includes a protective cover 6360 hinged to the side wall of the second sub-shell 2332 away from the first sub-shell 2331, the protective cover 6360 is used to cover the sealing ring 5338 and the clamping component 235; the protective cover 6360 is provided with a receiving port 7361 for the oil pipe 237 to pass through, and a limiting member 639 for cooperating with the oil pipe 237 to keep the protective cover 6360 in the covered state; the receiving port 7361 penetrates both sides of the protective cover 6360 and the side near the first sub-shell 2331.

[0046] By setting the second protective component 236 in this embodiment, the hinged protective cover 6360 can cover the fasteners such as the bolts 6357 of the clamping component 235, and at the same time cover the sealing ring 5338, thereby preventing these fasteners and the sealing ring 5338 from being exposed to direct sunlight, thus slowing down the aging rate.

[0047] In this embodiment, the limiting member 639 includes a rotating plate 9392 that is rotatably fitted at the protective cover 6360 and can overlap with the sealing ring 5338; the rotating plate 9392 is C-shaped and has a semi-circular notch 9394, and one end of the receiving port 7361 and the notch 9394 together form the receiving area 9395 through which the oil supply pipe 237 passes.

[0048] By setting the limiting member 639 in this embodiment, when the protective cover 6360 flips and the oil pipe 237 passes through the receiving port 7361 and finally covers the clamping assembly 235 and the sealing ring 5338, the receiving area 9395 formed by the notch 9394 and the receiving port 7361 can be made to cooperate with the oil pipe 237 by rotating the rotating plate 9392. At this time, the protective cover 6360 cannot be flipped, thus completing the limiting of the protective cover 6360. The rotating plate 9392 can cover the part of the sealing ring 5338 exposed at the receiving port 7361, which not only plays a limiting role but also a protective role.

[0049] In this embodiment, a fixed plate 9390 parallel to the rotating plate 9392 is connected to the protective cover 6360; a plurality of sliders 9391 are provided on the side of the fixed plate 9392 near the rotating plate 9392, and a limiting groove 9393 in the shape of a C is provided on the cover plate 7347 for sliding cooperation of the sliders 9391.

[0050] By setting the slider 9391 and the limiting groove 9393 in this embodiment, the rotating plate 9392 can rotate at the receiving port 7361. When the rotating plate 9392 does not overlap with the receiving port 7361, the oil supply pipe 237 can be exposed through the completed receiving port 7361. When they overlap, the notch 9394 can form a receiving area 9395 that cooperates with the oil pipe 237 together with the receiving port 7361. Thus, by rotating the rotating plate 9392, the position restriction state of the protective cover 6360 can be changed.

[0051] Example 3

[0052] This embodiment differs from Embodiment 1 or Embodiment 2 in that sealing mechanisms 140 are provided on both sides of the gate 120 to cooperate with the side walls of the gate opening 110. The sealing mechanism 140 includes a receiving groove 1141 formed on the side wall of the gate 120 near the insertion wall. The side wall of the gate 120 also has slots 1142 located on both sides of the receiving groove 1141 and arranged along the height direction of the gate 120. Insert strips 1147 are inserted into the slots 1142. A sealing piece 1148 for abutting against the wall of the gate opening 110 is connected between the two insert strips 1147. The receiving groove 1141 is arranged along the width direction of the gate opening 110 and slides to accommodate... The device includes a mounting base 1145; a stop plate 1146 for abutting against the sealing plate 1148 is provided on the side of the mounting base 1145 near the sealing plate 1148; a screw 1144 is rotatably fitted on the side of the mounting base 1145 away from the stop plate 1146; the screw 1144 is threadedly engaged with the inner wall of the receiving groove 1141; an operating port 1122 communicating with the receiving groove 1141 is provided on one side of the gate plate 120; the operating port 1122 and the screw 1144 are at the same height; a safety door 1024 is provided at the operating port 1122; a padlock ring 1123 is provided between the safety door 1024 and the gate plate 120.

[0053] The sealing mechanism 140 in this embodiment allows the abutment 1146 to be driven to move towards the sealing sheet 1148 when the screw 1144 is rotated, thereby changing the distance between the sealing sheet 1148 and the wall of the gate 110. This ensures that even if wear occurs between the sealing sheet 1148 and the wall of the gate 110, causing a larger gap and affecting the sealing effect, rotating the screw 1144 allows the sealing sheet 1148 to maintain its sealing effect with the wall of the gate 110. The pusher 1149 consists of the abutment 1146, the mounting base 1145, and the screw 1144. The insert 1147 and the slot 1142 are connected by a conventional sealing insertion to ensure sealing. A sealing plate is provided on the upper surface of the gate 120. 1050, to prevent the insert strip 1147 and sealing plate 1148 from falling off during the rotation of the gate 120; in the prior art, the sealing plate 1148 is installed by the operator according to the size of the gate 110 and the size of the gate 120. Once the installation hole 1151 used to connect the sealing plate 1148 and the gate 120 is misaligned, it is difficult to change. Human installation deviation factors cause the installation to need to be adjusted until good sealing performance is achieved; however, the pusher 1149 of this utility model can make up for this. Even if the gap between the sealing plate 1148 and the wall of the gate 110 is large due to installation deviation, the pusher 1149 can directly solve this problem, thus reducing the difficulty of installation.

[0054] It is readily understood that those skilled in the art can combine, split, or reorganize the embodiments provided in this application to obtain other embodiments, all of which do not exceed the protection scope of this application.

[0055] The present invention and its embodiments have been described above illustratively. This description is not restrictive, and the embodiments shown are only part of the embodiments of the present invention. The actual structure is not limited to this. Therefore, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A gate sealing mechanism, characterized in that: Includes a sealing piece (1148) for connecting to the side wall of the gate (120) and located between the gate (120) and the wall of the gate (110). The side wall of the gate (120) is provided with a receiving groove (1141) arranged along the width direction of the gate (120); the receiving groove (1141) is provided with a pusher (1149) located on the side of the sealing sheet (1148) away from the wall of the gate (110); the pusher (1149) is used to keep the sealing sheet (1148) in a tight state against the wall of the gate (110).

2. The gate sealing mechanism according to claim 1, characterized in that: The pusher (1149) includes a mounting base (1145) that slides along the length of the receiving groove (1141); a screw (1144) is rotatably fitted on the side of the mounting base (1145) away from the sealing plate (1148); the screw (1144) is arranged along the length of the receiving groove (1141), and the inner side of the receiving groove (1141) is provided with a threaded groove (1143) for the screw (1144) to be threaded.

3. The gate sealing mechanism according to claim 2, characterized in that: The side of the abutment (1146) near the sealing plate (1148) is arc-shaped.

4. A gate sealing mechanism according to claim 3, characterized in that: The gate (120) is provided with an operating port (1122) that communicates with the receiving groove (1141). The operating port (1122) and the screw (1144) are at the same height. A safety door (1024) for opening and closing the operating port (1122) is connected to the operating port (1122).

5. A gate sealing mechanism according to claim 1, characterized in that: The side wall of the gate (120) is provided with slots (1142) located on both sides of the receiving groove (1141) and arranged along the height direction of the gate (120). The slots (1142) also penetrate the upper end face of the gate (120). Inserts (1147) are sealed and inserted into the slots (1142). A sealing plate (1148) is connected to both inserts (1147). The upper end face of the gate (120) is provided with a sealing plate (1050) for restricting the inserts (1147) in the slots (1142). Both the sealing plate (1050) and the gate (120) are provided with mounting holes (1151) for connecting with fasteners.

6. A flap gate, comprising a gate (120), a drive mechanism (130), and a sealing mechanism as described in any one of claims 1-5.

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