A self-coupling inflatable sealing gate and sealing method

Abstract

A self-coupling inflatable sealing gate and sealing method, mainly comprising a door frame, the door frame is fixed at the water hole of the pool body, the door panel and the door frame are slidably matched and lifted or lowered by a lifting device; the upper and lower ends of the door panel and the door frame are supported and locked by a coupling structure; the back of the door panel is airtightly sealed with the door frame by an airtight structure. The self-coupling inflatable sealing gate and sealing method provided by the present invention can overcome the defects of traditional gates such as difficult maintenance and easy failure of sealing parts.

Description

Technical Field

[0001] The invention relates to a gate, in particular to a self-coupling inflatable sealing gate and a sealing method, which are used for water flow control in sewage treatment industry. Background Art

[0002] In modern sewage treatment facilities, gates are key water flow control devices and are widely used in sewage treatment plants to intercept water flow. However, traditional gate designs often have some shortcomings, especially in terms of operation and maintenance.

[0003] Traditional gates, such as the patent "A water inlet gate drive device" with application number "202022337364.2", are usually installed by wall attachment. Wall attachment requires pre-embedded bolts or steel plates on the foundation. When installing, adjust the door frame to meet the requirements and fix the door frame. Then, pour the second phase of concrete or fill the cement mortar to ensure the sealing of the joint surface between the door frame and the foundation to prevent water leakage. Since the door frame and door panel used in traditional gates are integrated, that is, the door panel is installed on the door frame through the guide rail, the door panel cannot be removed from the door frame due to the restriction of the track; at the same time, the gate itself is in the pool body and maintains a certain height from the top of the pool, so that maintenance personnel cannot remove the door panel from the door frame on the top of the pool. When maintenance operations such as replacing seals are required, maintenance personnel can only enter the pool to operate. The internal space of the pool is small and there may be harmful gases, which not only increases the difficulty of operation, but also poses a great safety hazard.

[0004] In addition, the sealing methods of traditional gates mostly rely on mechanical compression or static sealing elements such as rubber seals. Although this method can achieve a certain degree of water-stopping effect, it is easy to cause the seals to age, wear or even fail due to long-term immersion in water and opening and closing operations, which in turn affects the sealing performance of the gate. Once a leak occurs, the process of replacing the seal becomes more complicated and time-consuming because the gate cannot be easily disassembled. Summary of the invention

[0005] The technical problem to be solved by the present invention is to provide a self-coupling inflatable sealing gate and a sealing method, which overcomes the defects of traditional gates such as difficult maintenance and operation and easy failure of sealing parts.

[0006] In order to solve the above technical problems, the technical solution adopted by the present invention is: A self-coupling inflatable sealing gate comprises a door frame, which is fixed at the water hole of a pool body; a door panel is slidably matched with the door frame and lifted or lowered by a lifting device; the upper and lower ends of the door panel are supported and locked with the door frame by a coupling structure; the back of the door panel is airtightly sealed with the door frame by an airtight structure.

[0007] The door panel includes a door body, a lifting ring is provided in the middle of the top of the door body, and the lifting ring is connected by a lifting rope lifting device; connecting pieces are installed on the left and right of the lifting ring, and a guide rod is fixed on the top of the corresponding door frame, and the other end of the guide rod is vertically upward and fixed to the pool body; the connecting piece is slidably matched with the guide rod.

[0008] The door frame comprises a frame body, and limiting plates are installed on both sides of the frame body. The left and right limiting plates and the frame body form sliding grooves, and the sliding grooves are slidably matched with the door panels.

[0009] The coupling structure includes a lower coupling piece of the door panel, a coupling piece on the door plate, a lower coupling piece of the door frame and an upper coupling piece of the door frame; the lower coupling piece of the door panel is arranged at the lower end of the front side of the door panel, and the coupling piece on the door plate is arranged at the upper end of the back side of the door panel and partially extends out of the door panel; the lower coupling piece of the door frame is arranged at the bottom of the frame and partially extends out of the frame, and the upper coupling piece of the door frame is fixed at the top of the frame; wedge-shaped locking and support are adopted between the lower coupling piece of the door panel and the lower coupling piece of the door frame, and between the coupling piece on the door plate and the upper coupling piece of the door frame.

[0010] The airtight structure comprises an inflatable sealing strip, which is distributed in a ring shape on the back of the door body and forms an air flow channel inside. The air flow channel is connected to an inflatable tube, and the inflatable tube extends upward and is connected to a mobile inflating device.

[0011] The inflatable sealing strip is Ω-shaped and is fixed to the door body by bolts.

[0012] After the door panel is moved down to its proper position, a gap is reserved between the door body and the frame body, and the gap is used for the deflated inflatable sealing strip to pass through.

[0013] A self-coupling inflatable sealing gate sealing method comprises the following steps: 1) When the gate needs to be opened, the gas in the inflatable sealing strip is released through the inflation pipe, and the lifting device lifts the door plate upward. Under the limiting and guiding action of the connector and the limiting device, the door plate rises along the guide rod and stops after it is lifted to a suitable height, and the water flows through the water hole; 2) When the gate needs to be closed, the lifting device lowers the door panel, and under the guiding action of the connector and the limit device, the door panel descends into the door frame along the guide rod; under the action of gravity, after the gate is closed, the lower coupling piece of the door panel automatically couples with the lower coupling piece of the door frame, and the upper coupling piece of the door panel automatically couples with the upper coupling piece of the door frame; the mobile inflatable device inflates the inflatable sealing strip through the inflatable pipe, and the sealing strip expands to fill the gap between the door body and the frame body. By controlling the air pressure of the sealing strip, an effective seal is formed to intercept the water flow; 3) When the gate needs to be repaired, the gas in the inflatable sealing strip is released through the inflation tube, and the lifting device lifts the door panel upwards. Under the limiting and guiding action of the connecting parts and the limiting device, the door panel rises along the guide rod. When it is lifted to the top of the guide rod, the connecting parts are provided with a notch, so they can be directly detached from the guide rod fixing parts. The door panel is completely separated from the door frame, and the operation and maintenance personnel can perform cleaning and maintenance and replace the sealing parts.

[0014] The present invention provides a self-coupling inflatable sealing gate and a sealing method, which have the following technical effects: 1) For traditional gates, the door panels and door frames are integrated after installation, that is, the door panels are fixed on the door frames through tracks, and the door panels cannot be separated from the door frames. The gate is inside the pool, and maintenance can only be done by going down into the pool. The present invention uses a lifting device to lift and lower the door panels, and the door panels and door frames are split structures, which expands the range of movement of the gate. The door panels can be lifted to the top of the pool at most, and the operation and maintenance personnel do not need to enter the pool to clean and maintain the door panels, replace the sealing devices, and other operation and maintenance work, which not only simplifies the operation and maintenance process, but also reduces production safety risks. After the door panel falls into place, the upper and lower coupling structures of the door frame and the door panel are automatically coupled and locked, and the gate is closed.

[0015] 2) After the gate is closed, the inflatable device inflates the sealing strip through the inflatable tube connected to the Ω-type inflatable expansion sealing strip. As the gas is injected, the sealing strip gradually expands and presses against the door frame, using its elasticity and expanded shape to fill the gap and form a tight sealing surface to prevent water from passing through. The inflation pressure can be adjusted according to the required sealing degree. Appropriate pressure can ensure a good sealing effect while avoiding unnecessary damage to the sealing device caused by excessive pressure. When opening the gate, the gas in the sealing strip can be discharged through the inflatable tube to restore the sealing strip to its original state, reduce the friction between the door panel and the door frame, and facilitate the opening of the gate. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention will be further described below in conjunction with the accompanying drawings and embodiments: Figure 1 It is the installation schematic diagram of the present invention.

[0017] Figure 2 for Figure 1 A partial enlarged schematic diagram of .

[0018] Figure 3 It is a left sectional view of the door panel of the present invention.

[0019] Figure 4 It is a front view of the door panel of the present invention.

[0020] Figure 5 It is a back view of the door panel in the present invention.

[0021] Figure 6 It is a top view of the door panel of the present invention.

[0022] Figure 7 It is a left sectional view of the door frame in the present invention.

[0023] Figure 8 It is a front view of the door frame in the present invention.

[0024] Fig. 9 It is a top view of the door frame in the present invention.

[0025] In the figure: door panel 1, door frame 2, mobile inflating device 3, lifting device 4, water hole 5, door body 101, inflatable sealing strip 102, door panel lower coupling piece 103, door panel upper coupling piece 104, connecting piece 105, lifting ring 106, inflating tube 107, frame 201, guide rod 202, door frame lower coupling piece 203, door frame upper coupling piece 204, and limit plate 205. DETAILED DESCRIPTION

[0026] like Figure 1-2 As shown, a self-coupling inflatable sealing gate includes a door frame 2, which is fixed to the water hole of the pool body by expansion bolts, and the size matches the size of the water hole. The door panel 1 falls on the door frame 2, and the mobile inflating device 3 is arranged at the upper end of the pool body. The mobile inflating device 3 is connected to the inflatable sealing strip 102 on the door panel 1 through the inflatable pipe 107. The lifting device 4 is fixed to the upper end of the pool body, connected to the door panel 1 by a steel wire rope, and lifts the door panel 1.

[0027] The lifting device 4 is specifically a hand-cranked winch-type lifting frame.

[0028] The mobile inflator 3 is a common air pump or an air compressor. A deflation branch pipe is arranged on the original inflation pipeline, and a deflation valve is arranged on the deflation branch pipe for deflation.

[0029] like Figure 3-6 As shown, the door panel 1 includes a door body 101, and a lifting ring 106 is provided at the middle position of the top of the door body 101, and the lifting ring 106 is connected to the steel wire rope of the lifting device 4. The inflatable sealing strip 102 is fixed to the back of the door body 101 by bolts. The lower coupling member 103 of the door panel is fixed to the bottom of the front of the door body 101 by bolts. The upper coupling member 104 of the door panel is fixed to the top of the back of the door body 101 by bolts. The connecting member 105 is fixed to the top of the door body 101 by bolts.

[0030] Specifically, the door panel lower coupling member 103 is two groups of wedge-shaped blocks, the inclined surfaces of the wedge-shaped blocks are located on the outside and are inclined from top to bottom toward the back of the door panel 1. The door panel upper coupling member 104 is two groups, including a horizontal portion, a wedge-shaped portion is provided on one side of the horizontal portion, the wedge-shaped portion and the horizontal portion form an L shape, the inclined surface of the wedge-shaped portion is located on the inside and is inclined from top to bottom toward the back of the door panel 1.

[0031] The connecting members 105 are divided into two groups. The connecting members 105 include a connecting portion, and a C-shaped limiting ring is provided on one side of the connecting portion.

[0032] like Figure 7-9 As shown, the door frame 2 includes a frame 201, the lower end of the guide rod 202 is fixedly connected to the top of the frame 201 by bolts, and the guide rod 202 is arranged vertically upward and the upper end is fixed to the top of the pool body. The door frame lower coupling member 203 is fixed to the bottom of the frame 201 by bolts and extends out of the frame 201. The door frame upper coupling member 204 is fixed to the top of the frame 201 by bolts and is flush with the front end surface of the frame 201 or maintains a certain interval. The limit plate 205 is fixed to both sides of the frame 201 by bolts.

[0033] The door frame lower coupling member 203 includes a horizontal portion, which extends out of the door frame 2 by a certain length, and the length of the horizontal portion is slightly longer than the thickness of the door panel 1, and the gap left is for the sealing member to seal. The horizontal portion is provided with a wedge-shaped portion, and the wedge-shaped portion and the horizontal portion form an L shape, the wedge-shaped portion faces upward and the inclined surface is located on the inner side, and the inclined surface is inclined from top to bottom toward the back side of the door frame 2.

[0034] The coupling member 204 on the door frame is two sets of wedge-shaped blocks, the inclined surfaces of the wedge-shaped blocks are located on the outside and are inclined from top to bottom toward the back side of the door frame 2.

[0035] The door panel lower coupling piece 103 is configured as a set with the door frame lower coupling piece 203, and the door panel upper coupling piece 104 is configured as a set with the door frame upper coupling piece 204. The coupling structure adopts a wedge-shaped design. After the gate is closed in place, the coupling structure fits tightly, playing a locking and supporting role.

[0036] After the coupling structure is coupled in place, a certain gap is left between the door body 101 and the frame body 201 to prevent the inflatable sealing strip 102 from being worn during the opening and closing process of the gate.

[0037] The inflatable sealing strip 102 is designed as a rounded rectangle, with an inflatable tube 107 at the upper end, and the inflatable tube 107 extends to the outside of the pool body. After the inflatable sealing strip 102 is inflated, the inflatable sealing strip 102 expands to fill the gap between the door body 101 and the frame body 201, and an effective seal is formed by controlling the air pressure of the sealing strip.

[0038] The sliding connection between the connecting member 105 and the guide rod 202 enables the door panel 1 to slide up and down. During the sliding process, the connecting member 105 plays a role of precise limiting and guiding.

[0039] The limiting plates 205 are fixed to both sides of the frame 201 by bolts, and play a preliminary limiting and guiding role during the sliding process of the door panel 1.

[0040] A self-coupling inflatable sealing gate sealing method comprises the following steps: Step 1: When the gate needs to be opened, the gas in the inflatable sealing strip 102 is released through the inflation tube 107, and the lifting device 4 lifts the door panel 1 upward. Under the limiting and guiding action of the connecting piece 105 and the limiting plate 205, the door panel 1 rises along the guide rod 202, stops after being lifted to a suitable height, and the water flows through the water hole 5.

[0041] Step 2: When the gate needs to be closed, the lifting device 4 lowers the door panel 1, and under the limiting and guiding action of the connecting piece 105 and the limiting plate 205, the door panel 1 is lowered into the door frame 2 along the guide rod 202. Under the action of gravity, after the gate is closed in place, the lower coupling piece 103 of the door panel is automatically coupled with the lower coupling piece 203 of the door frame, and the upper coupling piece 104 of the door panel is automatically coupled with the upper coupling piece 204 of the door frame. The mobile inflatable device 3 inflates the inflatable sealing strip 102 through the inflatable tube 107, and the sealing strip expands to fill the gap between the door body 101 and the frame 201. By controlling the air pressure of the sealing strip, an effective seal is formed to intercept the water flow.

[0042] Step 3: When the gate needs to be repaired, the gas in the inflatable sealing strip 102 is released through the inflation tube 107, and the lifting device 4 lifts the door panel 1 upwards. Under the limiting and guiding action of the connecting piece 105 and the limiting plate 205, the door panel 1 rises along the guide rod 202. When it is lifted to the top of the guide rod 202, since the connecting piece 105 is provided with a notch, it can be directly detached from the guide rod fixing piece, and the door panel 1 is completely separated from the door frame 2. The operation and maintenance personnel can easily perform cleaning and maintenance, replacement of seals and other operations.

Claims

1. A self-coupling inflatable sealing gate, characterized in that: The invention comprises a door frame (2), the door frame (2) being fixed at a water hole (5) of a pool body, a door panel (1) being slidably matched with the door frame (2) and being lifted or lowered by a lifting device (4); the upper and lower ends of the door panel (1) and the door frame (2) are supported and locked by a coupling structure; and the back of the door panel (1) is airtightly sealed with the door frame (2) by an airtight structure.

2. The self-coupling inflatable sealing gate according to claim 1, characterized in that: The door panel (1) comprises a door body (101), a lifting ring (106) is provided at the middle position of the top of the door body (101), and the lifting ring (106) is connected via a lifting rope hoisting device (4); connecting pieces (105) are installed on the left and right of the lifting ring (106), and a guide rod (202) is fixed at the top of the corresponding door frame (2), and the other end of the guide rod (202) is vertically upward and fixed to the pool body; the connecting piece (105) is slidably matched with the guide rod (202).

3. The self-coupling inflatable sealing gate according to claim 2, characterized in that: The door frame (2) comprises a frame body (201), and limit plates (205) are installed on both sides of the frame body (201). The left and right limit plates (205) and the frame body (201) form sliding grooves, and the sliding grooves are slidably matched with the door panel (1).

4. The self-coupling inflatable sealing gate according to claim 3, characterized in that: The coupling structure comprises a door panel lower coupling member (103), a door plate upper coupling member (104), a door frame lower coupling member (203) and a door frame upper coupling member (204); the door panel lower coupling member (103) is arranged at the lower end of the front face of the door panel (1), the door panel upper coupling member (104) is arranged at the upper end of the back face of the door panel (1) and partially extends out of the door panel (1); the door frame lower coupling member (203) is arranged at the bottom of a frame (201) and partially extends out of the frame (201), and the door frame upper coupling member (204) is fixed to the top of the frame (201); wedge-shaped locking and support are adopted between the door panel lower coupling member (103) and the door frame lower coupling member (203), and between the door panel upper coupling member (104) and the door frame upper coupling member (204).

5. The self-coupling inflatable sealing gate according to claim 4, characterized in that: The airtight structure comprises an inflatable sealing strip (102), which is distributed in a ring shape on the back of the door body (101) and forms an air flow channel inside. The air flow channel is connected to an inflatable tube (107), and the inflatable tube (107) extends upward and is connected to the mobile inflating device (3).

6. The self-coupling inflatable sealing gate according to claim 5, characterized in that: The inflatable sealing strip (102) is Ω-shaped, and the inflatable sealing strip (102) is fixed to the door body (101) by means of bolts.

7. The self-coupling inflatable sealing gate according to claim 6, characterized in that: After the door panel (1) moves down to its proper position, a gap is reserved between the door body (101) and the frame body (201), and the gap is used for the deflated inflatable sealing strip (102) to pass through.

8. A method for sealing a self-coupling inflatable sealing gate according to claim 7, comprising the following steps: 1) When the gate needs to be opened, the gas in the inflatable sealing strip (102) is released through the inflation tube (107), and the lifting device (4) lifts the door panel (1) upwards. Under the limiting and guiding action of the connecting member (105) and the limiting device (205), the door panel (1) rises along the guide rod (202) and stops after being lifted to a suitable height, and water flows through the water hole; 2) When the gate needs to be closed, the lifting device (4) lowers the door panel (1), and under the limiting and guiding action of the connecting member (105) and the limiting device (205), the door panel (1) is lowered into the door frame (2) along the guide rod (202); under the action of gravity, after the gate is fully closed, the lower coupling member (103) of the door panel is automatically coupled with the lower coupling member (203) of the door frame, and the upper coupling member (104) of the door panel is automatically coupled with the upper coupling member (204) of the door frame; the mobile inflating device (3) inflates the inflatable sealing strip (102) through the inflating pipe (107), and the sealing strip expands to fill the gap between the door body (101) and the frame body (201), and by controlling the air pressure of the sealing strip, an effective seal is formed to intercept the water flow; 3) When the gate needs to be repaired, the gas in the inflatable sealing strip (102) is released through the inflation tube (107), and the lifting device (4) lifts the door panel (1) upward. Under the limiting and guiding action of the connecting member (105) and the limiting device (205), the door panel (1) rises along the guide rod (202). When it is lifted to the top of the guide rod (202), the connecting member (105) is provided with a notch, so it can be directly detached from the guide rod fixing member, and the door panel (1) is completely separated from the door frame (2). The operation and maintenance personnel can perform cleaning and maintenance and replace the sealing member.

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