Floating gate with speed regulation function

Abstract

The invention relates to the technical field of gates, in particular to a floating gate with a speed regulation function. The technical problems that the opening burden and the water flow impact resistance can be affected by the weight of a gate, the opening and closing weight of an existing gate is inconvenient to adjust when the existing gate is used, the opening burden of the gate is difficult to reduce while the water blocking weight of the gate is kept, water flow enables the gate to vibrate in a gate frame, and the water flow impact resistance of the gate is affected are solved. Therefore, the water blocking effect of the gate is poor. A floating gate with a speed regulation function comprises a door frame, and two insertion holes are formed in the middle of the door frame. The self weight of the gate is increased by sucking water and discharging air when the gate is closed, and the weight is reduced by discharging water and sucking air when the gate is opened, so that the opening and closing weight of the gate is adjusted, the water blocking weight of the gate can be kept while the opening burden of the gate is reduced, and the water blocking effect of the gate is enhanced.

Description

Technical Field

[0001] The invention relates to the technical field of gates, and in particular to a floating gate with a speed regulating function. Background Art

[0002] Gates originated from the need for water flow control in water conservancy projects and are usually used to intercept water flow, adjust water levels and manage flow. Traditional gates are mainly made of cast iron and steel. When opening and closing, the existing integrated mechanical gates are driven by motors to drive threaded rods to lift and close the gates, and by adjusting the speed of the motor, the opening and closing speed of the gates can be adjusted.

[0003] Since the weight of the gate affects the burden when opening and the ability to resist the impact of water flow, the current gates are not easy to adjust the weight of the gates when opening and closing, which makes it difficult to reduce the opening burden while maintaining the water-blocking weight. In addition, the water flow will cause the gate to vibrate in the door frame, making the gate unstable, resulting in poor water-blocking effect of the gate. Summary of the invention

[0004] In order to overcome the above-mentioned shortcomings, the present invention provides a floating gate with a speed regulation function, which can adjust the weight of the gate during opening and closing so that the gate can reduce the opening burden while maintaining the water-blocking weight, and fix the gate on the door frame to make the gate more stable, thereby enhancing the water-blocking effect of the gate.

[0005] The technical solution is: a floating gate with speed regulation function, including a door frame, two sockets are arranged in the middle of the door frame, a top beam is fixedly connected to the door frame, a gate is slidably connected in the door frame, a cavity is arranged in the gate, an air vent is arranged at the top of the gate, a water hole is arranged at the bottom of the gate, the air vent and water hole of the gate are connected with the cavity of the gate, a passage is left between the gate and the bottom of the door frame, three rollers are rotatably connected on both sides of the gate, six rollers are slidably connected to the door frame, and a lifting mechanism for lifting the gate is provided on the top beam.

[0006] Furthermore, a frame is provided on the gate.

[0007] Furthermore, the lifting mechanism includes a casing, the casing is fixedly connected to the top beam, a servo motor is fixedly connected to the casing, a worm is fixedly connected to the output shaft of the servo motor, the worm is rotatably connected to the casing, a threaded sleeve is rotatably connected inside the casing, a worm wheel is fixedly connected to the threaded sleeve, the worm wheel is meshed with the worm, a threaded rod is threadedly connected inside the threaded sleeve, a lifting frame is fixedly connected to the bottom of the threaded rod, the lifting frame is slidably connected to the gate, and a compensation component for compensating for the weight of the gate is provided on the lifting frame.

[0008] Furthermore, the compensation assembly includes a piston plate, which is fixed to the lifting frame. The piston plate divides the cavity of the gate into two parts, upper and lower parts, so that the air vent of the gate is connected to the lower cavity of the gate, and the water hole of the gate is connected to the upper cavity of the gate. A guide pipe is slidably connected in the water hole of the gate, the bottom of the guide pipe is fixed to the door frame, and the guide pipe is connected to the upper cavity of the gate.

[0009] Furthermore, the air vent of the door frame and the bottom of the air guide pipe are both provided with filter screens.

[0010] Furthermore, a protective cover is also included.

[0011] Furthermore, an anti-vibration mechanism is included, which is arranged on the lifting frame and is used to reduce the vibration of the gate. The anti-vibration mechanism includes a guide frame, which is fixed to the lifting frame. Two guide sleeves are fixed to the top of the gate, and locking columns are slidably connected in the two guide sleeves. The ends of the two locking columns that are away from each other are respectively in contact with two sockets of the door frame, and the ends of the two locking columns that are close to each other are fixed with contact frames. The two contact frames are both obliquely arranged, and the sides of the two contact frames that are close to each other are respectively in contact with the two ends of the guide frame. Tension springs are connected between the two locking columns and the two guide sleeves.

[0012] Furthermore, it also includes a blood sludge removal mechanism, which is arranged in the protective cover and is used to discharge sludge. The blood sludge removal mechanism includes a lifting frame, which is slidably connected to the lower part of the protective cover, the top of the lifting frame is in contact with the lifting frame, and a baffle is fixedly connected to the bottom of the lifting frame, which is in contact with the gate and the door frame, and a pressure spring is connected between the lifting frame and the protective cover.

[0013] Furthermore, it also includes a sealing mechanism, which is arranged on the guide sleeve and is used to seal the gap between the gate and the door frame. The sealing mechanism includes a piston cylinder, two piston cylinders are respectively fixed to the tops of the two guide sleeves, and piston rods are slidably connected in the two piston cylinders. The two piston rods are respectively fixed to the two locking columns. Two inflatable sealing strips are installed on the gate, and the two inflatable sealing strips are in contact with the door frame. Connecting pipes are connected between the two inflatable sealing strips and the two piston cylinders.

[0014] The beneficial effects are: 1. When the gate is closed, water is sucked in and air is discharged through the gate to increase the gate's own weight, and when the gate needs to be opened, water is discharged and air is sucked in through the gate to reduce the weight, thereby adjusting the weight of the gate when opening and closing, so that the gate can reduce the opening burden while maintaining the water-blocking weight, thereby enhancing the water-blocking effect of the gate.

[0015] 2. After closing the gate, insert the locking column into the gate's socket to fix the gate on the door frame, making the gate more stable, thereby further enhancing the gate's water-blocking effect; the lifting frame drives the baffle to move upward, so that the water flow at the bottom carries the silt out from the channel between the door frame and the gate, and then the accumulated silt is cleared by the water flow, making the subsequent opening of the gate smoother, thereby improving the gate's opening efficiency, and the lifting frame can be regularly controlled to move upward a certain distance to open the baffle, thereby regularly clearing the silt accumulated at the bottom of the gate.

[0016] 3. After closing the gate, the inflatable sealing strip is inflated, and then the gate is sealed without affecting the opening and closing resistance of the gate, so that water is not easy to flow out from the gap between the gate and the door frame, thereby further enhancing the water-blocking effect of the gate. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0018] Figure 2 It is a schematic diagram of the cross-sectional three-dimensional structure of the present invention.

[0019] Figure 3 It is a three-dimensional structural schematic diagram of the lifting mechanism and the compensation component of the present invention.

[0020] Figure 4 It is a schematic cross-sectional three-dimensional structural diagram of the lifting mechanism of the present invention.

[0021] Figure 5 It is a schematic diagram of the three-dimensional structure of the compensation component of the present invention.

[0022] Figure 6 It is a schematic diagram of the three-dimensional structure of the anti-vibration mechanism of the present invention.

[0023] Figure 7 It is a schematic cross-sectional three-dimensional structural diagram of the anti-vibration mechanism of the present invention.

[0024] Figure 8 It is a schematic diagram of the three-dimensional structure of the silt removal mechanism and the lifting mechanism of the present invention.

[0025] Fig. 9 It is a schematic diagram of the three-dimensional structure of the blood stasis removal mechanism of the present invention.

[0026] Fig.10 It is a three-dimensional structural schematic diagram of the sealing mechanism of the present invention.

[0027] Fig.11 It is a three-dimensional structural schematic diagram of the sealing mechanism of the present invention.

[0028] The names and serial numbers of the parts in the figure are: 1_door frame, 2_top beam, 3_gate, 4_roller, 5_lifting mechanism, 51_casing, 52_servo motor, 53_worm, 54_worm wheel, 55_threaded sleeve, 56_threaded rod, 57_lifting frame, 6_compensation component, 61_piston plate, 62_guide pipe, 7_protective cover, 8_anti-vibration mechanism, 81_guide frame, 82_guide sleeve, 83_locking column, 84_contact frame, 85_tension spring, 9_blood stasis removal mechanism, 91_lifting frame, 92_baffle, 93_pressure spring, 10_sealing mechanism, 101_piston cylinder, 102_piston rod, 103_connecting pipe, 104_inflatable sealing strip. DETAILED DESCRIPTION

[0029] The present invention will now be described more fully below with reference to the accompanying drawings, in which currently preferred embodiments of the present invention are shown. However, the present invention may be implemented in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided for thoroughness and completeness, and these embodiments fully convey the scope of the present invention to the skilled person.

[0030] Embodiment 1: A floating gate with speed regulation function, such as Figure 1-Figure 5 As shown, it includes a door frame 1, two jacks are provided in the middle of the door frame 1, a top beam 2 is connected to the door frame 1 by bolts, a gate 3 is slidably connected in the door frame 1, the door frame 1 is used to guide and support the gate 3, the gate 3 is used to block the water flow, a cavity is provided in the gate 3, an air vent is provided at the top of the gate 3, the air vent of the gate 3 is used for the air in and out, a water hole is provided at the bottom of the gate 3, the water hole of the gate 3 is used for the water in and out, the air vent and the water hole of the gate 3 are connected with the cavity of the gate 3, a channel is left between the gate 3 and the bottom of the door frame 1, three rollers 4 are rotatably connected on both sides of the gate 3, six rollers 4 are slidably connected to the door frame 1, the rollers 4 are used to reduce the friction between the gate 3 and the door frame 1, and a lifting mechanism 5 for lifting the gate 3 is provided on the top beam 2.

[0031] A frame is provided on the gate 3, and the frame of the gate 3 can prevent the gate 3 from being deformed.

[0032] The lifting mechanism 5 includes a casing 51, which is connected to the top beam 2 by bolts, a servo motor 52 is connected to the casing 51 by bolts, a worm 53 is connected to the output shaft of the servo motor 52 by a keyway, the worm 53 is rotatably connected to the casing 51, a threaded sleeve 55 is rotatably connected in the casing 51, a worm wheel 54 is connected to the threaded sleeve 55 by bolts, the worm wheel 54 is meshed with the worm 53, a threaded rod 56 is threadedly connected in the threaded sleeve 55, a lifting frame 57 is connected to the bottom of the threaded rod 56 by bolts, the lifting frame 57 is slidably connected to the gate 3, the lifting frame 57 is used to open and close the gate 3, and a compensation component 6 for compensating for the weight of the gate 3 is provided on the lifting frame 57.

[0033] The compensation assembly 6 includes a piston plate 61, which is connected to the lifting frame 57 by bolts. The piston plate 61 divides the cavity of the gate 3 into two parts, the upper and lower parts. The piston plate 61 is used to adjust the cavity ratio of the upper and lower parts of the gate 3, so that the air vent of the gate 3 is connected to the lower cavity of the gate 3, and the water hole of the gate 3 is connected to the upper cavity of the gate 3. A guide pipe 62 is slidably connected in the water hole of the gate 3. The bottom of the guide pipe 62 is connected to the door frame 1 by bolts, and the guide pipe 62 is connected to the upper cavity of the gate 3.

[0034] The air vents of the door frame 1 and the bottom of the air guide pipe 62 are both provided with filter screens, and the air vents of the door frame 1 and the filter screens of the air guide pipe 62 are used to block debris.

[0035] A protective cover 7 is also included, and the protective cover 7 is used to protect the threaded rod 56.

[0036] Initially, the upper cavity of the gate 3 is filled with water, and the bottom of the guide tube 62 is immersed in water. When the gate 3 needs to be lifted, the operator starts the servo motor 52, and the output shaft of the servo motor 52 rotates to drive the worm 53 to rotate, and the rotation of the worm 53 drives the threaded sleeve 55 to rotate through the worm gear 54, and the rotation of the threaded sleeve 55 drives the lifting frame 57 to move upward through the threaded rod 56, and the movement of the lifting frame 57 drives the piston plate 61 to move together, and the piston plate 61 moves to the upper part of the gate 3 to squeeze the water in the upper cavity of the gate 3, and the water in the upper cavity of the gate 3 is squeezed and discharged from the guide tube 62 through the water hole of the gate 3, so that the weight of the gate 3 is reduced, and at the same time, the gate The cavity below the gate 3 generates negative pressure, so that air is sucked into the cavity below the gate 3 from the vent hole, so that the buoyancy of the gate 3 increases, and then the lifting frame 57 continues to move upward. At this time, the gate 3 moves upward under the action of the lifting frame 57 and the buoyancy of the gate 3. At the same time, the gate 3 reduces the friction between the gate frame 1 and the gate frame 1 through the roller 4, thereby opening the gate 3. At the same time, the opening speed of the gate 3 is adjusted by adjusting the rotation speed of the servo motor 52. When it is necessary to close the gate 3, the operator controls the output shaft of the servo motor 52 to reverse, so that the worm 53 reverses, and the reversal of the worm 53 drives the threaded sleeve 55 to reverse through the worm gear 54, so that the threaded rod 56 drives the lifting frame 57 to reverse. The lifting frame 57 moves downward to reset, and the lifting frame 57 moves downward to make the gate 3 move downward to reset together. After the gate 3 is reset, the lifting frame 57 continues to move downward to drive the piston plate 61 to move together. The downward movement of the piston plate 61 will squeeze the air in the lower cavity of the gate 3, so that the air is discharged through the vent of the gate 3. At the same time, the upper cavity of the gate 3 generates negative pressure, so that water enters the upper cavity of the gate 3 through the guide pipe 62 and the water through hole of the gate 3. At the same time, the filter screen at the bottom of the vent of the gate 3 and the guide pipe 62 will intercept the debris in the water and the air, and the vent of the gate 3 and the guide pipe 62 will recoil the gate 3 and the guide pipe 62 when exhausting and draining respectively. 2, and then clean up the debris attached to the filter; when the upper cavity of the gate 3 is filled with water, the gravity of the gate 3 will be increased, so that when the gate 3 is closed, water is sucked in and air is discharged through the gate 3 to increase the deadweight of the gate 3, and when the gate 3 needs to be opened, water is discharged and air is sucked in through the gate 3 to reduce the weight, thereby adjusting the weight of the gate 3 when opening and closing, so that the gate 3 can reduce the opening burden while maintaining the water-blocking weight, thereby enhancing the water-blocking effect of the gate 3; when the gate 3 blocks water, the skeleton on the gate 3 makes it difficult for the gate 3 to deform, and the threaded rod 56 is shielded by the protective cover 7, thereby preventing weeds, plastic bags and other debris from entangled in the threaded rod 56.

[0037] Embodiment 2: Based on embodiment 1, Figure 1-Figure 9As shown, it also includes an anti-vibration mechanism 8, which is arranged on the lifting frame 57 and is used to reduce the vibration of the gate 3. The anti-vibration mechanism 8 includes a guide frame 81, which is connected to the lifting frame 57 by bolts. Two guide sleeves 82 are connected to the top of the gate 3 by bolts. Locking columns 83 are slidably connected in the two guide sleeves 82. The ends of the two locking columns 83 that are away from each other are respectively in contact with the two sockets of the door frame 1. The locking columns 83 are used to be inserted into the sockets of the door frame 1. The ends of the two locking columns 83 that are close to each other are connected to contact frames 84 by bolts. The two contact frames 84 are both obliquely arranged, and the sides of the two contact frames 84 that are close to each other are respectively in contact with the two ends of the guide frame 81. The guide frame 81 is used to drive the locking columns 83 to move by squeezing the contact frame 84, and tension springs 85 are connected between the two locking columns 83 and the two guide sleeves 82.

[0038] It also includes a blood sludge removal mechanism 9, which is arranged in the protective cover 7 and is used to discharge sludge. The blood sludge removal mechanism 9 includes a lifting frame 91, which is slidably connected to the lower part of the protective cover 7, the top of the lifting frame 91 is in contact with the lifting frame 57, and the bottom of the lifting frame 91 is connected with a baffle 92 by bolts, and the baffle 92 is in contact with the gate 3 and the door frame 1. The lifting frame 91 is used to drive the baffle 92 to move by squeezing the lifting frame 57, and a pressure spring 93 is connected between the lifting frame 91 and the protective cover 7.

[0039] At first, the lifting frame 57 presses against the inclined surfaces of the two contact frames 84 through the guide frame 81, and the tension spring 85 is stretched, so that the two locking columns 83 press against the two insertion holes of the gate 3 respectively, and the lifting frame 57 presses against the lifting frame 91, and the pressure spring 93 is compressed, so that the baffle 92 blocks the passage between the door frame 1 and the gate 3. When the gate 3 needs to be opened, the lifting frame 57 moves upward and drives the guide frame 81 to move together, so that the guide frame 81 no longer presses against the two contact frames 84, and the tension spring 85 resets and drives the two locking columns 83 to move closer to each other, so that the two locking columns 83 no longer press against the two insertion holes of the gate 3 respectively, so that the gate 3 can be opened later. When the gate 3 needs to be closed, the lifting frame 57 and the gate 3 move downward together. After the gate 3 is closed, the lifting frame 57 continues to move downward and drives the guide frame 81 to move together, so that the guide frame 81 squeezes the two locking columns 83 through the two contact frames 84 and reinserts them into the two insertion holes of the gate 3, and the tension spring 85 returns to the initial state. After the door 3 is opened, the locking column 83 is inserted into the insertion hole of the gate 3, thereby fixing the gate 3 on the door frame 1, making the gate 3 more stable, thereby further enhancing the water blocking effect of the gate 3; when the lifting frame 57 moves upward by a certain distance, the lifting frame 57 no longer resists the lifting frame 91, and the pressure spring 93 is reset and drives the baffle 92 to move upward through the lifting frame 91, so that the baffle 92 no longer blocks the channel between the door frame 1 and the gate 3, so that the water flow at the bottom carries the silt and is discharged from the channel between the door frame 1 and the gate 3, and then the accumulated silt is cleaned by the water flow, so that the subsequent opening of the gate 3 is smoother, thereby improving the opening efficiency of the gate 3, and the operator can regularly control the lifting frame 57 to move upward by a certain distance to open the baffle 92, thereby regularly cleaning the silt accumulated at the bottom of the gate 3; when closing the gate 3, the lifting frame 57 moves downward to squeeze the lifting frame 91 to reset, and the pressure spring 93 returns to the initial state, so that the baffle 92 blocks the channel between the door frame 1 and the gate 3 again, thereby blocking the water flow.

[0040] Embodiment 3: Based on embodiment 2, Figure 1-Figure 11 As shown, a sealing mechanism 10 is also included, and the sealing mechanism 10 is arranged on the guide sleeve 82 and is used to seal the gap between the gate 3 and the door frame 1. The sealing mechanism 10 includes a piston cylinder 101. The two piston cylinders 101 are respectively connected to the tops of the two guide sleeves 82 by bolts. The two piston cylinders 101 are slidably connected with piston rods 102. The two piston rods 102 are respectively connected to the two locking columns 83 by bolts. Two inflatable sealing strips 104 are installed on the gate 3. The two inflatable sealing strips 104 are both in contact with the door frame 1. The inflatable sealing strips 104 are used to fill the gap between the door frame 1 and the gate 3. The two inflatable sealing strips 104 are respectively connected to the two piston cylinders 101 with connecting pipes 103.

[0041] Initially, the inflatable sealing strip 104 is in an inflated state, so that the inflatable sealing strip 104 contacts the door frame 1. When the gate 3 needs to be opened, the two locking columns 83 will move toward each other, and at the same time, the two locking columns 83 will respectively drive the two piston rods 102 to move together, so that negative pressure is generated in the piston cylinder 101. Subsequently, the air in the two inflatable sealing strips 104 enters the two piston cylinders 101 through the connecting pipes 103, so that the inflatable sealing strips 104 are no longer in contact with the door frame 1. When the gate 3 is closed, the two locking columns 83 are in a state of being inflated. The column 83 drives the two piston rods 102 to reset respectively, so that the two piston rods 102 squeeze the air in the two piston cylinders 101 respectively, so that the air in the two piston cylinders 101 enters the two inflatable sealing strips 104 respectively through the connecting pipe 103. In this way, the inflatable sealing strips 104 are inflated after closing the gate 3, and then the gate 3 is sealed without affecting the opening and closing resistance of the gate 3, so that water is not easy to flow out from the gap between the gate 3 and the door frame 1, thereby further enhancing the water-blocking effect of the gate 3.

[0042] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A floating gate with a speed regulating function, comprising a door frame (1), wherein two insertion holes are provided in the middle of the door frame (1), a top beam (2) is fixedly connected to the door frame (1), and a gate (3) is slidably connected to the door frame (1), characterized in that: A cavity is provided in the gate (3), an air vent is provided at the top of the gate (3), and a water through hole is provided at the bottom of the gate (3). The air vent and the water through hole of the gate (3) are both connected to the cavity of the gate (3), a passage is left between the gate (3) and the bottom of the door frame (1), three rollers (4) are rotatably connected to both sides of the gate (3), and the six rollers (4) are all slidably connected to the door frame (1), and a lifting mechanism (5) for lifting the gate (3) is provided on the top beam (2).

2. A floating gate with speed regulation function according to claim 1, characterized in that: A frame is provided on the gate (3).

3. A floating gate with speed regulation function according to claim 1, characterized in that: The lifting mechanism (5) comprises a housing (51), the housing (51) being fixedly connected to the top beam (2), a servo motor (52) being fixedly connected to the housing (51), a worm (53) being fixedly connected to the output shaft of the servo motor (52), the worm (53) being rotatably connected to the housing (51), a threaded sleeve (55) being rotatably connected inside the housing (51), a worm wheel (54) being fixedly connected to the threaded sleeve (55), the worm wheel (54) being meshed with the worm (53), a threaded rod (56) being internally threadedly connected to the threaded sleeve (55), a lifting frame (57) being fixedly connected to the bottom of the threaded rod (56), the lifting frame (57) being slidably connected to the gate (3), and a compensation component (6) for compensating for the weight of the gate (3) being provided on the lifting frame (57).

4. A floating gate with speed regulation function according to claim 3, characterized in that: The compensation assembly (6) comprises a piston plate (61) which is fixedly connected to the lifting frame (57). The piston plate (61) divides the cavity of the gate (3) into upper and lower parts, so that the air vent of the gate (3) is connected to the lower cavity of the gate (3), and the water through hole of the gate (3) is connected to the upper cavity of the gate (3). A flow guide pipe (62) is slidably connected in the water through hole of the gate (3). The bottom of the flow guide pipe (62) is fixedly connected to the door frame (1), and the flow guide pipe (62) is connected to the upper cavity of the gate (3).

5. A floating gate with speed regulating function according to claim 4, characterized in that: The vent hole of the door frame (1) and the bottom of the flow guide pipe (62) are both provided with filter screens.

6. The floating gate with speed regulating function according to claim 4, characterized in that: Also included is a protective cover (7).

7. A floating gate with speed regulating function according to claim 6, characterized in that: The invention also comprises an anti-vibration mechanism (8), the anti-vibration mechanism (8) being arranged on the lifting frame (57) and being used for reducing the vibration of the gate (3), the anti-vibration mechanism (8) comprising a guide frame (81), the guide frame (81) being fixedly connected to the lifting frame (57), two guide sleeves (82) being fixedly connected to the top of the gate (3), locking columns (83) being slidably connected in the two guide sleeves (82), the ends of the two locking columns (83) being away from each other respectively contacting the two insertion holes of the door frame (1), the ends of the two locking columns (83) being close to each other are fixedly connected to contact frames (84), the two contact frames (84) are both arranged obliquely, the sides of the two contact frames (84) being close to each other are respectively in contact with the two ends of the guide frame (81), and tension springs (85) are respectively connected between the two locking columns (83) and the two guide sleeves (82).

8. The floating gate with speed regulating function according to claim 7, characterized in that: The utility model also comprises a sludge discharge mechanism (9), wherein the sludge discharge mechanism (9) is arranged in the protective cover (7) and is used for discharging sludge, and the sludge discharge mechanism (9) comprises a lifting frame (91), wherein the lifting frame (91) is slidably connected to the lower part of the protective cover (7), wherein the top of the lifting frame (91) contacts the lifting frame (57), wherein a baffle plate (92) is fixedly connected to the bottom of the lifting frame (91), wherein the baffle plate (92) contacts the gate (3) and the door frame (1), and a pressure spring (93) is connected between the lifting frame (91) and the protective cover (7).

9. The floating gate with speed regulating function according to claim 8, characterized in that: The invention also comprises a sealing mechanism (10), wherein the sealing mechanism (10) is arranged on the guide sleeve (82) and is used to seal the gap between the gate (3) and the door frame (1), wherein the sealing mechanism (10) comprises a piston cylinder (101), wherein two piston cylinders (101) are respectively fixedly connected to the tops of the two guide sleeves (82), wherein piston rods (102) are slidably connected in the two piston cylinders (101), wherein the two piston rods (102) are respectively fixedly connected to the two locking columns (83), and wherein two inflatable sealing strips (104) are installed on the gate (3), wherein the two inflatable sealing strips (104) are both in contact with the door frame (1), and connecting pipes (103) are respectively connected between the two inflatable sealing strips (104) and the two piston cylinders (101).

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