Flap gate

Abstract

The invention relates to the technical field of flap gates, in particular to a flap gate. The gate comprises a gate body, and the gate body comprises a gate plate arranged at a gate opening; a hydraulic cylinder is arranged at the gate; a first protection assembly is arranged at the hydraulic cylinder; the first protection assembly comprises a protection shell connected to the hydraulic cylinder. A sealing frame matched with the side wall of the hydraulic cylinder is arranged at the protective shell; a penetrating opening allowing the oil pipe to penetrate through is formed in the side, away from the sealing frame, of the protective shell, and a sealing ring for blocking a gap between the oil pipe and the penetrating opening is arranged at the penetrating opening. The protective shell with the containing cavity can cover the connector of the hydraulic cylinder, a gap between the containing cavity and the hydraulic cylinder is sealed in cooperation with the sealing frame, meanwhile, the penetrating opening is formed in the protective shell, an oil pipe extends into the penetrating opening to be connected with the connector, and the sealing ring is arranged at the penetrating opening to block the gap between the oil pipe and the penetrating opening; the position is prevented from being corroded and aged by water flow or being invaded by impurities in water to pollute hydraulic oil.

Description

Technical Field

[0001] The present invention relates to the technical field of flap gates, in particular to a flap gate. Background Art

[0002] Flap gates are used at the gates of rivers in urban tourist attractions. Flap gates are usually composed of gates, drive mechanisms and control systems. Seals are provided on both sides of the gates to seal with the walls on both sides of the gates. The drive mechanism is composed of a hydraulic cylinder. The piston rod of the hydraulic cylinder is hinged to one side of the gate, and the end of the cylinder body of the hydraulic cylinder away from the piston rod is hinged to the bottom of the gate. The inlet and outlet oil interfaces of the hydraulic cylinder are connected to the hydraulic pump station of the control system through oil pipes, and the extension and retraction of the piston rod of the hydraulic cylinder is controlled by the control system to achieve control of the flipping of the gate.

[0003] The hydraulic cylinder of an existing flap gate is usually located at the bottom of the gate, and the inlet and outlet oil interfaces of the hydraulic cylinder are located at the end of the cylinder body away from the piston rod, that is, close to the bottom of the gate. When the gate is flipped to open the gate, water will flow to the surface of the hydraulic cylinder and submerge the inlet and outlet oil interfaces of the hydraulic cylinder; usually the oil pipe is connected to the interface of the hydraulic cylinder through a metal threaded joint. When the water flows over the connection between the interface and the joint, it will cause corrosion to the interface and the joint, and even water with poor water quality will penetrate into the interface and mix with the hydraulic oil, causing damage to the hydraulic cylinder and the hydraulic pump station, affecting the operation of the flap gate. Summary of the invention

[0004] The present invention provides a flap gate, which can overcome the defects of the prior art that when the hydraulic cylinder is submerged by water flow at the connection between the interface and the joint, corrosion will be caused to the interface and the joint, and even water flow with poor water quality will penetrate into the interface and mix with the hydraulic oil, causing damage to the hydraulic cylinder and the hydraulic pump station, thereby affecting the operation of the flap gate.

[0005] A flap gate according to the present invention comprises a gate body, the gate body comprises a gate plate for being arranged at a gate opening; the gate plate is arranged along the width direction of the gate opening, and a sealing mechanism cooperating with the gate opening side wall is arranged at both sides; a driving mechanism for driving the gate plate to flip is arranged at the gate opening; The driving mechanism includes a hydraulic cylinder connected to the gate and having a piston rod and an interface; a first protective component is provided at the hydraulic cylinder; the first protective component includes a protective shell connected to the hydraulic cylinder; the protective shell has an accommodating cavity for accommodating the interface, and an opening that passes through the accommodating cavity is provided on one side, and a sealing frame that cooperates with the side wall of the hydraulic cylinder is provided at the opening; a through hole for the oil pipe to pass through is provided on the side of the protective shell away from the sealing frame, and a sealing ring is provided at the through hole to seal the gap between the oil pipe and the through hole.

[0006] Through the first protective component of the present invention, the interface of the hydraulic cylinder can be covered by a protective shell with a accommodating cavity, and the gap between the accommodating cavity and the hydraulic cylinder can be sealed in cooperation with a sealing frame. At the same time, a through hole is provided at the protective shell for an oil supply pipe to extend into and connect with the interface, and a sealing ring is provided at the through hole to seal the gap between the oil pipe and the through hole. When the flap gate is opened and the water flow submerges the hydraulic cylinder, the joint between the interface and the oil pipe will not contact the water flow, so as to prevent the joint from being corroded and aged by the water flow or being invaded by impurities in the water to pollute the hydraulic oil, and shielding the joint can also avoid sunlight and delay aging. Moreover, the protective shell and the sealing ring form a limit clamp for the part of the oil pipe close to the joint. When the hydraulic cylinder drives the gate to cause itself to flip over and cause the oil pipe to have twisting and bending deformation, clamping at this part can reduce the degree of deformation to a certain extent, so as to protect the joint between the hard joint and the soft oil pipe.

[0007] Preferably, the protective shell is arranged along the length direction of the hydraulic cylinder and is composed of a first sub-shell and a second sub-shell that are symmetrically arranged; the first sub-shell and the second sub-shell are hinged to each other at one end away from the piston rod, and a locking piece is provided at one end close to the piston rod; a sealing strip located inside the accommodating cavity is provided at the fitting part of the first sub-shell and the second sub-shell; two through-openings are provided and arranged along the length direction of the protective shell, and are both divided into two by the first sub-shell and the second sub-shell; the first sub-shell and the second sub-shell divide the sealing ring and the sealing frame into two sub-rings and two sub-frames respectively.

[0008] In the present invention, by arranging the first sub-shell, the second sub-shell and the locking member, the first sub-shell and the second sub-shell can be opened and closed in the manner of hinges, and the closed state can be maintained by the locking member. In this way, during installation, the oil pipe can be directly placed between the two sub-rings and then the first sub-shell and the second sub-shell can be closed, and the closed state can be maintained by the locking member. At this time, the through-opening has been sealed, and finally the sealing frame is sealed in cooperation with the hydraulic cylinder to complete the installation and achieve sealing. It is not necessary to install by threading a pipe, which is more convenient.

[0009] Preferably, the locking member includes a fixed seat connected to the end of the first sub-shell; a sliding cavity is provided at the fixed seat; the sliding cavity is arranged along the length direction of the protective shell, passes through one end away from the first sub-shell and one side close to the second sub-shell to form an opening; a sliding seat is slidably matched with the sliding cavity; a cover plate for blocking the opening at the end of the fixed seat is provided at the fixed seat; a button passing through the cover plate is provided at the sliding seat; a card block extending out of the opening of the side wall of the fixed seat and extending to the end of the second sub-shell is provided at the sliding seat; a card slot arranged in the length direction of the sliding cavity is provided at the card block; a card frame for cooperating with the card slot is provided at the end of the second sub-shell; a spring pressed against the sliding seat is provided in the sliding cavity, and the spring is used to enable the card frame to maintain cooperation with the card slot; a slope is provided at the side wall of the card block close to the second sub-shell.

[0010] In the present invention, by setting the locking piece, when the first subshell and the second subshell tend to be closed, the card frame of the second subshell will be pressed against the inclined surface of the card block, thereby displacing the card block and compressing the spring. After the card frame corresponds to the card slot of the card block, the spring recovers and restores the position of the card block, restricting the card frame in the card slot. At this time, the first subshell and the second subshell cannot be separated, completing the rapid locking of the closed state, and when unlocking, only need to press the button to drive the card block to displace the card frame so that the card frame is out of the card slot to separate the first subshell and the second subshell.

[0011] Preferably, a strap is connected to the side wall of the first subshell away from the second subshell; the strap is arranged along the width direction of the protective shell and is provided with a plurality of hanging openings arranged at intervals; a hook is provided at the side wall of the second subshell away from the first subshell; the hook is used to allow the strap to be wrapped around the side wall of the hydraulic cylinder and then cooperate with any hanging opening; the first subshell and the second subshell are both provided with arc-shaped clamping pieces that cooperate with the side walls of the interface; the clamping pieces of the first subshell and the second subshell are used to jointly clamp the interface.

[0012] In the present invention, by setting the straps and the hooks, the straps of the first subshell can cooperate with the hooks of the second subshell after bypassing the hydraulic cylinder, thereby preventing the protective shell from being displaced in the direction away from the hydraulic cylinder, causing the seal between the sealing frame and the hydraulic cylinder to fail, and further improving the sealing effect between the protective shell and the hydraulic cylinder; not only that, by setting the clamping sheet, when the first subshell and the second subshell are closed, the clamping sheets of the two can jointly clamp the interface. Because the diameter of the joint of the oil pipe is larger than the diameter of the interface, the clamping sheet will be located between the hydraulic cylinder and the joint. When the two interfaces are clamped, the entire protective shell will not flip around the axis of the hydraulic cylinder or displace along the axial direction of the hydraulic cylinder after closing, thereby ensuring the stability and sealing of the entire first protective component.

[0013] Preferably, a clamping assembly is provided at the protective shell; the clamping assembly includes clamping plates which are respectively arranged at the first sub-shell and the second sub-shell and slide together along the width direction of the protective shell; a plurality of sliding rods which are arranged at intervals along the length direction of the protective shell are provided at the first sub-shell and the second sub-shell on the side away from the sealing frame; a sliding groove which is arranged along the width direction of the protective shell and is used for the sliding rod to slide together is provided at the clamping plate; a limit plate is provided at the end of the sliding rod; a groove for cooperating with the sub-ring is provided between the two clamping plates; a first connecting tube and a second connecting tube are respectively provided at the end surfaces of the two clamping plates away from the protective shell; a bolt passes through the second connecting tube; the bolt is threadedly engaged with the first connecting tube to enable the two clamping plates to have a tendency to move relative to each other, so as to clamp the sealing ring.

[0014] In the present invention, by setting the clamping assembly, the clamping plates respectively located at the first sub-shell and the second sub-shell can be relatively displaced or oppositely displaced when the bolt is rotated. During the relative displacement, the two sub-rings of the sealing ring will be clamped, so that the sealing performance between the sealing ring and the oil pipe is greatly improved. Moreover, the clamping assembly allows the first protective assembly to be adapted to oil pipes of different thicknesses and specifications to improve applicability; wherein the limit plate and the sliding rod are connected by fasteners such as screws.

[0015] Preferably, a second protective assembly is provided at the protective shell; the second protective assembly includes a protective cover hingedly engaged with the side wall of the second sub-shell away from the first sub-shell, the protective cover is used to cover the sealing ring and the clamping assembly; the protective cover is provided with a receiving opening for the oil pipe to pass through, and a limiting member for cooperating with the oil pipe to keep the protective cover in a covering state; the receiving opening passes through both sides of the protective cover and one side close to the first sub-shell.

[0016] In the present invention, by providing the second protective component, the hinged protective cover can cover the bolts and other fasteners of the clamping component, and can also cover the sealing ring, thereby preventing these fasteners and sealing rings from being exposed to direct sunlight, thereby slowing down the aging rate.

[0017] Preferably, the limiting member comprises a rotating plate which is rotatably fitted on the protective cover and can overlap with the sealing ring; the rotating plate is C-shaped and has a semicircular notch, and one end of the accommodating opening and the notch together constitute an accommodating interval through which the oil supply pipe passes.

[0018] In the present invention, by setting the limiting member, when the protective cover is flipped over and the oil pipe is passed through the accommodating opening and finally covers the clamping assembly and the sealing ring, the accommodating area formed by the notch and the accommodating opening can be matched with the oil pipe by rotating the rotating plate. At this time, the protective cover cannot be flipped over, and the limiting of the protective cover is completed, wherein the rotating plate can cover the part of the sealing ring exposed at the accommodating opening, which not only plays a limiting role but also a protective role.

[0019] Preferably, the protective cover is connected to a fixed plate parallel to the rotating plate; a plurality of sliders are provided on one side of the fixed plate close to the rotating plate, and a C-shaped limiting groove for sliding engagement of the sliders is provided on the cover plate.

[0020] In the present invention, by setting the slider and the limit groove, the rotating plate can be rotated at the accommodating opening. When the rotating plate does not overlap with the accommodating opening, the completed accommodating opening can be exposed for the oil pipe to pass through. After overlapping, the notch can form a accommodating interval that cooperates with the accommodating opening together with the accommodating opening, thereby changing the position restriction state of the protective cover by rotating the rotating plate.

[0021] Preferably, the sealing mechanism includes a receiving groove provided on the side wall of the gate plate near the wall surface of the socket; the side wall of the gate plate is also provided with slots located on both sides of the receiving groove and arranged along the height direction of the gate plate; insertion strips are plugged into the slots; a sealing sheet for pressing against the wall surface of the gate port is connected between the two insertion strips; the receiving groove is arranged along the width direction of the gate port and is slidably fitted with a mounting seat; a side of the mounting seat near the sealing sheet is provided with a back plate for pressing against the sealing sheet; a side of the mounting seat away from the back plate is rotatably fitted with a screw; the screw is threadedly fitted with the inner side wall of the receiving groove; an operating port that passes through the receiving groove is provided on one side of the gate plate; the operating port and the screw are at the same height; a safety door is provided at the operating port; and a hanging ring for padlock is provided between the safety door and the gate plate.

[0022] In the present invention, by setting up the sealing mechanism, when the screw is rotated, the abutment plate can be driven to move in the direction of the sealing sheet, thereby changing the distance between the sealing sheet and the gate wall surface, so that when the sealing sheet and the gate wall surface are worn and the gap becomes larger and affects the sealing effect, the sealing sheet can still maintain the sealing effect with the gate wall surface by rotating the screw rod.

[0023] Preferably, a plurality of bases and bearing seats are provided at the bottom of the gate; an end face of the gate plate close to the bottom of the gate plate is rotatably matched with the plurality of bases; an end of the hydraulic cylinder away from the piston rod is rotatably matched with the bearing seat; a hinged seat is provided on one side of the gate plate which is rotatably matched with the end of the piston rod.

[0024] In the present invention, the base and the bearing seat are arranged so that the base can bear the gate plate and flip the gate plate, and the bearing seat can bear the hydraulic cylinder and the force applied to the hydraulic cylinder when the gate plate flips. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 A schematic diagram of the gate body in Example 1 being installed at the gate; Figure 2 is a bottom perspective view of the driving mechanism in Example 1; Figure 3 is a top perspective view of the driving mechanism in Example 1; Figure 4 This is a schematic diagram of the second protection component in Example 1 after it is opened; Figure 5 This is a schematic diagram of the first subshell after opening in Example 1; Figure 6 is a schematic diagram of the first protection component, the clamping component and the second protection component in Example 1; Figure 7 This is an exploded schematic diagram of the locking member in Example 1; Figure 8 It is a schematic diagram of the position limiting member in Embodiment 1; Fig. 9 for Figure 8 An enlarged schematic diagram of the position limiter in FIG. Fig.10 It is a schematic diagram of the disassembly of the gate plate and the sealing mechanism in Example 1; Fig.11 for Fig.10 An enlarged schematic diagram of the middle sealing mechanism. DETAILED DESCRIPTION

[0026] In order to further understand the content of the present invention, the present invention is described in detail in conjunction with the embodiments. It should be understood that the embodiments are only for explaining the present invention and are not intended to limit it.

[0027] Example 1 like Figure 1-11 As shown, this embodiment provides a flap gate, which includes a gate body 100, the gate body 100 includes a gate plate 120 for being arranged at a gate 110; the gate plate 120 is arranged along the width direction of the gate 110; a driving mechanism 130 for driving the gate plate 120 to flip is provided at the gate 110; The driving 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 an accommodating cavity 5337 for accommodating the interface 538 inside, and an opening that passes through the accommodating 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 supply 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.

[0028] Through the first protective assembly 233 of the present embodiment, it is possible to cover the interface 538 of the hydraulic cylinder 231 through the protective shell 2330 with the accommodating cavity 5337, and cooperate with the sealing frame 2333 to seal the gap between the accommodating cavity 5337 and the hydraulic cylinder 231. At the same time, a through hole 5336 is provided at the protective shell 2330 for the oil supply pipe 237 to extend into and connect with the interface 538, and a sealing ring 5338 is provided at the through hole 5336 to block the gap between the oil pipe 237 and the through hole 5336. When the flap gate is opened and the water flow submerges the hydraulic cylinder 231, the joint 5370 of the interface 538 and the oil pipe 237 will not contact the water flow, so as to prevent the corrosion and aging of the place by the water flow or the pollution of the hydraulic oil by the impurities in the water, and shielding the place can also avoid sunlight and delay aging; not only that, the protective shell 2330 and the sealing ring 5338 are also provided at the through hole 5336. 338 forms a limit clamp on the portion of the oil pipe 237 close to the joint 5370. When the hydraulic cylinder 231 drives the gate plate 120 to cause itself to flip over and cause the oil pipe 237 to be twisted and bent, the clamping at this portion can reduce the degree of deformation to a certain extent, thereby protecting the junction between the hard joint 5370 and the soft oil pipe 237; the clamping assembly 235 can clamp the two sub-rings 53380 of the sealing ring 5338 by rotating the bolt 6357, so that the sealing between the sealing ring 5338 and the oil pipe 237 is further improved, and thereby can adapt to oil pipes 237 of different thicknesses to improve applicability and versatility; the second protective assembly 236 can cover several fasteners of the clamping assembly 235 and the sealing ring 5338 of the first protective assembly 233 to prevent serious aging caused by direct sunlight and ensure service life.

[0029] In this embodiment, the protective shell 2330 is arranged along the length direction of the hydraulic cylinder 231, and is composed of a first sub-shell 2331 and a second sub-shell 2332 that are symmetrically arranged; the first sub-shell 2331 and the second sub-shell 2332 are hinged to each other at one end away from the piston rod 232, and a locking piece 234 is provided at one end close to the piston rod 232; the first sub-shell 2331 and the second sub-shell 2332 are both provided with a sealing strip 7339 located inside the accommodating cavity 5337 at the joint part; two through-holes 5336 are provided and are arranged along the length direction of the protective shell 2330, and are both 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.

[0030] By setting the first sub-shell 2331, the second sub-shell 2332 and the locking member 234 in this embodiment, the first sub-shell 2331 and the second sub-shell 2332 can be opened and closed in a hinged manner, and the locking member 234 can keep the closed state. In this way, during installation, the oil pipe 237 can be directly placed between the two sub-rings 53380, and then the first sub-shell 2331 and the second sub-shell 2332 are closed, and the closed state is kept by the locking member 234. At this time, the through opening 5336 has been sealed, and finally the seal is closed. The sealing frame 2333 cooperates with the hydraulic cylinder 231 to seal, and the installation can be completed to achieve sealing, and there is no need to install it by inserting a pipe, which is more convenient; wherein, the sealing strip 7339, the sealing frame 2333, the sealing strip 7339 and the sealing ring 5338 are all made of rubber materials of known sealing parts, and the binding band 2335 is made of non-slip rubber material; wherein the sub-ring 53380 of the sealing ring 5338 is fixed at the through-opening 5336, so when the sub-ring 53380 is clamped, the sealing between the sealing ring 5338 and the through-opening 5336 will not be affected; Figure 5 It can be seen that the length of the sealing ring 5338 is greater than the thickness of the protective shell 2330, and the two ends of the sealing ring 5338 extend inside and outside the protective shell 2330. The groove 6351 coincides with the part of the sealing ring 5338 extending out of the protective shell 2330, so the clamping assembly 235 can clamp the sealing ring 5338; the side of the sub-frame 3334 of the sealing frame 2333 that fits with the hydraulic cylinder 231 is an arc-shaped surface, thereby ensuring the sealing.

[0031] In this embodiment, the locking member 234 includes a fixing seat 7340 connected to the end of the first sub-shell 2331; a sliding cavity 7341 is provided at the fixing seat 7340; the sliding cavity 7341 is arranged along the length direction of the protective shell 2330, passes through one end away from the first sub-shell 2331 and one side close to the second sub-shell 2332 and forms an opening; a sliding seat 7343 is slidably matched at the sliding cavity 7341; a cover plate 7347 for blocking the opening at the end of the fixing seat 7340 is provided at the fixing seat 7340; a button 7344 is provided at the sliding seat 7343 that passes through the cover plate 7347; A clamping block 7346 is provided at the movable seat 7343, extending from the side wall opening of the fixed seat 7340 and extending to the end of the second sub-shell 2332; a clamping groove 7345 is provided at the clamping block 7346 in the length direction of the sliding cavity 7341; a clamping frame 7349 for cooperating with the clamping groove 7345 is provided at the end of the second sub-shell 2332; a spring 7342 is provided in the sliding cavity 7341, which is pressed against the sliding seat 7343, and the spring 7342 is used to enable the clamping frame 7349 to maintain cooperation with the clamping groove 7345; a slope 7348 is provided at the side wall of the clamping block 7346 close to the second sub-shell 2332.

[0032] By setting the locking member 234 in this embodiment, when the first subshell 2331 and the second subshell 2332 tend to be closed, the card frame 7349 of the second subshell 2332 will press against the inclined surface 7348 of the card block 7346, thereby displacing the card block 7346 and compressing the spring 7342. After the card frame 7349 corresponds to the card slot 7345 of the card block 7346, the spring 7342 recovers and restores the position of the card block 7346, restricting the card frame 7349 in the card slot 7345. At this time, the first subshell 2331 and the second subshell 2332 cannot be separated, completing the rapid locking of the closed state. When unlocking, it is only necessary to press the button 7344 to drive the card block 7346 to displace the card frame 7349 to separate the card slot 7345 to separate the first subshell 2331 and the second subshell 2332. Figure 2 , 3 , 4, 6, and 8 are all clamping blocks 7346 that cooperate with the clamping frame 7349 to keep the first sub-shell 2331 and the second sub-shell 2332 in a closed state.

[0033] 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 is provided with a plurality of spaced hanging openings 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 be wrapped around the side wall of the hydraulic cylinder 231 and then cooperate with any hanging opening 33350; the first sub-shell 2331 and the second sub-shell 2332 are both provided with an arc-shaped clamping piece 53310 that cooperates 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.

[0034] By setting the binding belt 2335 and the hook 33320 in this embodiment, the binding belt 2335 of the first sub-shell 2331 can cooperate with the hook 33320 of the second sub-shell 2332 after bypassing the hydraulic cylinder 231, thereby preventing the protective shell 2330 from moving away from the hydraulic cylinder 231, causing the sealing between the sealing frame 2333 and the hydraulic cylinder 231 to fail, and further improving the sealing effect between the protective shell 2330 and the hydraulic cylinder 231; moreover, by setting the clamping piece 53310, the binding belt 2335 of the first sub-shell 2331 can be matched with the hook 33320 of the second sub-shell 2332 after bypassing the hydraulic cylinder 231, thereby preventing the protective shell 2330 from moving away from the hydraulic cylinder 231, causing the sealing between the sealing frame 2333 and the hydraulic cylinder 231 to fail, and further improving the sealing effect between the protective shell 2330 and the hydraulic cylinder 231. When the first subshell 231 and the second subshell 2332 are closed, the clamping pieces 53310 of the two jointly clamp the interface 538. Since the diameter of the joint 5370 of the oil pipe 237 is larger than the diameter of the interface 538, the clamping piece 53310 will be located between the hydraulic cylinder 231 and the joint 5370. When the two interfaces 538 are clamped, 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 closing, thereby ensuring the stability and sealing of the entire first protective assembly 233.

[0035] In this embodiment, a plurality of bases 111 and a bearing seat 112 are provided at the bottom of the gate 110; an end surface of the gate plate 120 close to the bottom of the gate plate 110 is rotatably matched with the plurality of bases 111; an end of the hydraulic cylinder 231 away from the piston rod 232 is rotatably matched with the bearing seat 112; a side of the gate plate 120 is provided with a hinge seat 1021 rotatably matched with the end of the piston rod 232.

[0036] By disposing the base 111 and the bearing seat 112 in this embodiment, the base 111 can support the gate plate 120 and flip the gate plate 120 , and the bearing seat 112 can support the hydraulic cylinder 231 and the force applied to the hydraulic cylinder 231 when the gate plate 120 flips.

[0037] It should be noted that only a part of the oil pipe 237 is shown in the accompanying drawings. In specific applications, the oil pipe 237 can be connected to a hydraulic pump station, and the hydraulic pump station can be controlled by a well-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 a seal that cooperates with the side of the gate 120 that blocks the water flow should be provided at the gate 110 to prevent water from flowing through the gap in the base 111.

[0038] Example 2 The present embodiment is different from the embodiment 1 in that a clamping assembly 235 is provided at the protective shell 2330; the clamping assembly 235 includes a clamping plate 6350 which is respectively arranged at the first sub-shell 2331 and the second sub-shell 2332 and slides along the width direction of the protective shell 2330; a plurality of sliding rods 7353 which are arranged at intervals along the length direction of the protective shell 2330 are provided at the first sub-shell 2331 and the second sub-shell 2332 on the side away from the sealing frame 2333; a plurality of sliding rods 7353 which are arranged along the width direction of the protective shell 2330 and are used for slidingly engaging with the sliding rods 7353 are provided at the clamping plate 6350. A sliding groove 6352 is provided for engagement with the sub-ring 53380; a limit plate 6354 is provided at the end of the sliding rod 7353; a groove 6351 for cooperating with the sub-ring 53380 is provided between the two clamping plates 6350; a first connecting tube 6355 and a second connecting tube 6356 are respectively provided at the end surfaces of the two clamping plates 6350 away from the protective shell 2330; a bolt 6357 penetrates the second connecting tube 6356; the bolt 6357 is threadedly matched with the first connecting tube 6355, so as to enable the two clamping plates 6350 to have a tendency of relative movement, so as to clamp the sealing ring 5338.

[0039] Through the arrangement of the clamping assembly 235 in this embodiment, when the bolt 6357 is rotated, the clamping plates 6350 respectively located at the first sub-shell 2331 and the second sub-shell 2332 can be relatively displaced or reversely displaced. During the relative displacement, the two sub-rings 53380 of the sealing ring 5338 will be clamped, so that the sealing performance between the sealing ring 5338 and the oil pipe 237 is greatly improved. Moreover, through the clamping assembly 235, the first protective assembly 233 can be adapted to the oil pipes 237 of different thicknesses to improve applicability; wherein the limit plate 6354 and the sliding rod 7353 are connected by fasteners such as screws.

[0040] In this embodiment, a second protective assembly 236 is provided at the protective shell 2330; the second protective assembly 236 includes a protective cover 6360 hingedly engaged with the side wall of the second sub-shell 2332 away from the first sub-shell 2331, and the protective cover 6360 is used to cover the sealing ring 5338 and the clamping assembly 235; the protective cover 6360 is provided with a receiving opening 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 a covered state; the receiving opening 7361 passes through both sides of the protective cover 6360 and one side close to the first sub-shell 2331.

[0041] By providing 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 can cover the sealing ring 5338, thereby preventing these fasteners and the sealing ring 5338 from being exposed to direct sunlight, thereby slowing down the aging rate.

[0042] In this embodiment, the limit member 639 includes a rotating plate 9392 that is rotatably engaged with the protective cover 6360 and can overlap with the sealing ring 5338; the rotating plate 9392 is C-shaped and has a semicircular notch 9394, and one end of the accommodating opening 7361 and the notch 9394 together constitute an accommodating area 9395 through which the oil supply pipe 237 passes.

[0043] By setting the limiting member 639 in this embodiment, when the protective cover 6360 is flipped over and the oil pipe 237 is passed through the accommodating opening 7361 and finally covers the clamping assembly 235 and the sealing ring 5338, the accommodating area 9395 formed by the notch 9394 and the accommodating opening 7361 can be matched with the oil pipe 237 by rotating the rotating plate 9392. At this time, the protective cover 6360 cannot be flipped over, and the limiting of the protective cover 6360 is completed, wherein the rotating plate 9392 can cover the part of the sealing ring 5338 exposed at the position of the accommodating opening 7361, which not only plays a limiting role but also a protective role.

[0044] In this embodiment, a fixed plate 9390 that is parallel to the rotating plate 9392 is connected to the protective cover 6360; a plurality of sliders 9391 are provided on one side of the fixed plate 9390 close to the rotating plate 9392, and a C-shaped limiting groove 9393 for sliding cooperation of the slider 9391 is provided on the cover plate 7347.

[0045] By setting the slider 9391 and the limiting groove 9393 in this embodiment, the rotating plate 9392 can rotate at the accommodating opening 7361. When the rotating plate 9392 does not overlap with the accommodating opening 7361, the completed accommodating opening 7361 can be exposed to allow the oil pipe 237 to pass through. After overlapping, the notch 9394 can form a accommodating interval 9395 that cooperates with the accommodating opening 7361, thereby changing the position restriction state of the protective cover 6360 by rotating the rotating plate 9392.

[0046] Example 3 The present embodiment is different from the first embodiment or the second embodiment in that sealing mechanisms 140 are provided on both sides of the gate plate 120 to cooperate with the side walls of the gate 110; the sealing mechanism 140 includes a receiving groove 1141 provided on the side wall of the gate plate 120 close to the wall surface of the plug; the side wall of the gate plate 120 is also provided with slots 1142 located on both sides of the receiving groove 1141 and arranged along the height direction of the gate plate 120; the slots 1142 are plugged with insert strips 1147; a sealing sheet 1148 for pressing against the wall surface of the gate 110 is connected between the two insert strips 1147; the receiving groove 1141 is arranged along the width direction of the gate 110, and is slidably fitted. A mounting seat 1145 is provided; a butt plate 1146 for pressing against the sealing sheet 1148 is provided on one side of the mounting seat 1145 close to the sealing sheet 1148; a screw rod 1144 is rotatably engaged with the side of the mounting seat 1145 away from the butt plate 1146; the screw rod 1144 is threadedly engaged with the inner wall of the accommodating groove 1141; an operating port 1122 that passes through the accommodating groove 1141 is provided on one side of the gate plate 120; the operating port 1122 and the screw rod 1144 are at the same height; a safety door 1024 is provided at the operating port 1122; a hanging ring 1123 for padlock is provided between the safety door 1024 and the gate plate 120.

[0047] By setting the sealing mechanism 140 in this embodiment, when the screw 1144 is rotated, the plate 1146 can be driven to move in the direction of the sealing sheet 1148, thereby changing the distance between the sealing sheet 1148 and the wall surface of the gate 110, so that when the sealing sheet 1148 and the wall surface of the gate 110 are worn and the gap becomes larger and affects the sealing effect, the sealing sheet 1148 can still maintain the sealing effect with the wall surface of the gate 110 by rotating the screw 1144; the pushing member 1149 is composed of the plate 1146, the mounting seat 1145 and the screw 1144; the insertion strip 1147 and the slot 1142 are conventionally sealed and plugged to ensure the sealing performance, and a blocking plate is provided on the upper end surface of the gate 120 1050, to prevent the insertion strip 1147 and the sealing sheet 1148 from falling off during the flipping of the gate plate 120; the sealing sheet 1148 in the prior art is installed by the operator according to the size of the gate 110 and the size of the gate plate 120, and the installation hole 1151 used to connect the sealing sheet 1148 and the gate plate 120 is difficult to change once the deviation is opened. The artificial installation deviation factor causes the installation to be debugged until it has good sealing performance; the push piece 1149 provided with the present utility model can make up for this. Even if the gap between the sealing sheet 1148 and the wall of the gate 110 is large due to the installation deviation, this problem can be directly solved by the push piece 1149, so that it has the effect of reducing the difficulty of installation.

[0048] It is easy to understand that those skilled in the art can combine, split, reorganize, etc. the embodiments of the present application to obtain other embodiments based on one or several embodiments provided in the present application, and these embodiments do not exceed the protection scope of the present application.

[0049] The present invention and its implementation methods are described schematically above, and the description is not restrictive. The embodiments shown in the embodiments are only part of the implementation methods of the present invention, and the actual structure is not limited thereto. Therefore, if a person skilled in the art is inspired by the embodiments and designs a structure and an implementation method similar to the technical solution without creativity without departing from the purpose of the invention, they should all fall within the protection scope of the present invention.

Claims

1. A flap gate, characterized in that: The gate body (100) comprises a gate plate (120) for being arranged at a gate opening (110); the gate plate (120) is arranged along the width direction of the gate opening (110), and sealing mechanisms (140) are provided on both sides thereof to cooperate with the side walls of the gate opening (110); a driving mechanism (130) for driving the gate plate (120) to flip is provided at the gate opening (110); The driving mechanism (130) comprises a hydraulic cylinder (231) connected to the gate (110) and having a piston rod (232) and an interface (538); a first protective assembly (233) is provided at the hydraulic cylinder (231); the first protective assembly (233) comprises a protective shell (2330) connected to the hydraulic cylinder (231); the protective shell (2330) has an accommodating chamber (5337) for accommodating the interface (538) inside, and an opening is provided on one side thereof, which is communicated with the accommodating chamber (5337); a sealing frame (2333) is provided at the opening and matches the side wall of the hydraulic cylinder (231); a through hole (5336) for the oil supply pipe (237) to pass through is provided at one side of the protective shell (2330) away from the sealing frame (2333); a sealing ring (5338) is provided at the through hole (5336) for sealing the gap between the oil pipe (237) and the through hole (5336).

2. A flap gate according to claim 1, characterized in that: The protective shell (2330) is arranged along the length direction of the hydraulic cylinder (231) and is composed of a first subshell (2331) and a second subshell (2332) which are symmetrically arranged; the first subshell (2331) and the second subshell (2332) are hinged to each other at one end away from the piston rod (232), and a locking member (234) is provided at one end close to the piston rod (232); the first subshell (2331) and the second subshell (2332) are both provided with a positioning member at the joint portion. A sealing strip (7339) is provided inside the accommodating cavity (5337); two through-openings (5336) are provided and are arranged along the length direction of the protective shell (2330), and both are 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.

3. A flap gate according to claim 2, characterized in that: The locking member (234) comprises a fixing seat (7340) connected to the end of the first sub-shell (2331); a sliding cavity (7341) is provided at the fixing seat (7340); the sliding cavity (7341) is arranged along the length direction of the protective shell (2330), penetrates an end away from the first sub-shell (2331) and a side close to the second sub-shell (2332) and forms an opening; a sliding seat (7343) is slidably matched at the sliding cavity (7341); a cover plate (7347) for blocking the opening at the end of the fixing seat (7340) is provided at the fixing seat (7340); a button (7344) penetrating the cover plate (7347) is provided at the sliding seat (7343); the sliding seat (73 A clamping block (7346) is provided at the side wall opening of the fixing seat (7340) and extends to the end of the second sub-shell (2332); a clamping groove (7345) is provided at the clamping block (7346) in the length direction of the sliding cavity (7341); a clamping frame (7349) for cooperating with the clamping groove (7345) is provided at the end of the second sub-shell (2332); a spring (7342) is provided in the sliding cavity (7341) and is pressed against the sliding seat (7343), and the spring (7342) is used to enable the clamping frame (7349) to maintain cooperation with the clamping groove (7345); and an inclined surface (7348) is provided at the side wall of the clamping block (7346) close to the second sub-shell (2332).

4. A flap gate according to claim 2, characterized in that: A binding belt (2335) is connected to the side wall of the first sub-shell (2331) away from the second sub-shell (2332); the binding belt (2335) is arranged along the width direction of the protective shell (2330) and is provided with a plurality of hanging openings (33350) arranged at intervals; a hook (33320) is provided at the side wall of the second sub-shell (2332) away from the first sub-shell (2331); the hook (33320) is used to make the binding belt (2335) match with any hanging opening (33350) after being wrapped around the side wall of the hydraulic cylinder (231); the first sub-shell (2331) and the second sub-shell (2332) are both provided with arc-shaped clamping pieces (53310) that match 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 form clamping at the interface (538) together.

5. The flap gate according to claim 2, characterized in that: A clamping assembly (235) is provided at the protective shell (2330); the clamping assembly (235) comprises clamping plates (6350) respectively arranged at the first subshell (2331) and the second subshell (2332) and slidingly matched along the width direction of the protective shell (2330); a plurality of sliding rods (7353) are arranged at intervals along the length direction of the protective shell (2330) at the side of the first subshell (2331) and the second subshell (2332) away from the sealing frame (2333); a sliding groove (6353) is provided at the clamping plate (6350) along the width direction of the protective shell (2330) and used for the sliding rod (7353) to slide and match 2); a limit plate (6354) is provided at the end of the sliding rod (7353); a groove (6351) for cooperating with the sub-ring (53380) is provided between the two clamping plates (6350); a first connecting tube (6355) and a second connecting tube (6356) are respectively provided at the end surfaces of the two clamping plates (6350) away from the protective shell (2330); a bolt (6357) penetrates the second connecting tube (6356); the bolt (6357) is threadedly matched with the first connecting tube (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).

6. A flap gate according to claim 5, characterized in that: A second protective assembly (236) is provided at the protective shell (2330); the second protective assembly (236) comprises a protective cover (6360) hingedly engaged with the side wall of the second sub-shell (2332) away from the first sub-shell (2331), the protective cover (6360) being used to cover the sealing ring (5338) and the clamping assembly (235); the protective cover (6360) is provided with an accommodating opening (7361) for the oil supply pipe (237) to pass through, and a limiting member (639) for cooperating with the oil pipe (237) to keep the protective cover (6360) in a covered state; the accommodating opening (7361) passes through two sides of the protective cover (6360) and one side close to the first sub-shell (2331).

7. A flap gate according to claim 6, characterized in that: The limiting member (639) includes a rotating plate (9392) that is rotatably engaged with the protective cover (6360) and can overlap with the sealing ring (5338); the rotating plate (9392) is C-shaped and has a semicircular notch (9394); one end of the accommodating opening (7361) and the notch (9394) together form an accommodating section (9395) through which the oil supply pipe (237) passes.

8. The flap gate according to claim 7, characterized in that: A fixing plate (9390) that is parallel to the rotating plate (9392) is connected to the protective cover (6360); a plurality of sliding blocks (9391) are provided on one side of the fixing plate (9390) close to the rotating plate (9392); and a limiting groove (9393) in a C-shape for slidingly engaging with the sliding blocks (9391) is provided on the cover plate (7347).

9. The flap gate according to claim 1, characterized in that: The sealing mechanism (140) comprises a receiving groove (1141) provided on the side wall of the gate (120) near the wall surface of the socket; the side wall of the gate (120) is also 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) are plugged with insert strips (1147); a sealing sheet (1148) for pressing against the wall surface of the gate (110) is connected between the two insert strips (1147); the receiving groove (1141) is arranged along the width direction of the gate (110) and is slidably matched with a mounting seat (1145); the mounting seat (1145) is close to the sealing sheet (114 8) is provided at one side thereof with a butt plate (1146) for tightly abutting against a sealing sheet (1148); a screw rod (1144) is rotatably engaged at a side of the mounting seat (1145) away from the butt plate (1146); the screw rod (1144) is threadedly engaged with the inner wall of the receiving groove (1141); an operating port (1122) which is in communication with the receiving groove (1141) is provided at one side of the gate plate (120); the operating port (1122) and the screw rod (1144) are at the same height; a safety door (1024) is provided at the operating port (1122); and a hanging ring (1123) for padlocking is provided between the safety door (1024) and the gate plate (120).

10. The flap gate according to claim 1, characterized in that: A plurality of bases (111) and a bearing seat (112) are provided at the bottom of the gate (110); an end surface of the gate plate (120) close to the bottom of the gate (110) is rotatably matched with the plurality of bases (111); an end of the hydraulic cylinder (231) away from the piston rod (232) is rotatably matched with the bearing seat (112); and a hinge seat (1021) rotatably matched with the end of the piston rod (232) is provided on one side of the gate plate (120).

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