Deeply-buried-position blow-off pipe intercepting and sealing air bag device and intercepting and sealing equipment

Abstract

The utility model discloses a deep-buried-position blow-off pipe intercepting and sealing air bag device and intercepting and sealing equipment. The deep-buried-position blow-off pipe intercepting and sealing air bag device comprises an air bag body, an air bag plugging assembly, a first clamping piece and a second clamping piece. The airbag plugging assembly is hermetically connected with the airbag body; the first clamping piece is connected with one side of the air bag plugging assembly, the first clamping piece is provided with a notch used for being connected with the rope body, and the first clamping piece can clamp one side of a port of the blow-off pipe; the second clamping part is connected with the other side of the air bag plugging assembly, the second clamping part can clamp the other side of the end opening of the blow-off pipe, and the air bag plugging assembly can stretch across the end opening of the blow-off pipe through the first clamping part and the second clamping part. The air bag plugging assembly can stretch across the end opening of the blow-off pipe through the first clamping piece and the second clamping piece, even if the air bag plugging assembly is impacted by water flow, the first clamping piece, the second clamping piece and the air bag plugging assembly can bear the impact of the water flow on the air bag body, the strength consumed by workers for pulling the air bag body is reduced, and the working strength of the workers is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of deep-buried position sewage pipe interception sealing air bag device and interception sealing equipment, belong to sewage pipe interception sealing technical field. BACKGROUND

[0002] Deep-buried position sewage pipe refers to the sewage pipe buried in deep position underground, these pipelines are mainly used to collect and discharge sewage. It also includes large-diameter deep-buried position sewage pipe, generally refers to the sewage discharge pipe with pipe diameter not less than 1200mm, buried position basically above 6-8m, in some special areas, its buried position even reaches above 15m, sewage flow in sewage pipe is large, and water flow is high. Taking the sewage pipe with diameter 1500m as an example, its daily sewage flow reaches 80,000 tons, and the design pressure of the pipe is 1.6MPa. In order to facilitate regular maintenance, cleaning and dredging, inspection wells are generally set at every certain distance on the intersection of drainage pipeline, turning place, pipe diameter or slope change place, drop place and straight pipe section. The water level in the inspection well is at least higher than that of the sewage pipe. When regular maintenance or pipe repair and maintenance is needed, the sewage pipe in the maintenance or repair section needs to be intercepted and sealed first, and then the sewage in the interception section is discharged by water pump. The interception and sealing method of deep-buried position sewage pipe mainly includes one or more of the following methods: sealing steel plate method, drilling backfill method, rubber air bag method and steel gate plate interception and sealing method. The commonly used method in the industry is the rubber air bag method combined with the steel gate plate interception and sealing method. The interception and sealing of sewage pipe is generally selected at the intersection of sewage pipe and inspection well. The rubber air bag pipe opening is sealed, and then the steel gate plate interception and sealing is combined. The process of putting the rubber air bag into the pipe and pressurizing needs to be configured with a traction rope to pull the whole process. The water flow impact process greatly consumes the physical strength of workers, and the labor intensity is high. The cost of sealing manpower is high, and there is an urgent need for a sewage pipe interception and sealing air bag device that can reduce the pulling strength of workers. UTILITY MODEL CONTENTS

[0003] In view of the deficiencies of the above-mentioned prior art, the purpose of the utility model is to provide a deep-buried position sewage pipe interception and sealing air bag device and interception and sealing equipment. The first clamping part and the second clamping part are respectively installed on the two sides of the air bag sealing assembly. The air bag main body is put into the port of the sewage pipe, and the slot of the first clamping part is pulled by the traction rope. The first clamping part is clamped to one side of the top of the port of the sewage pipe, and then the second clamping part is clamped to the other side of the bottom of the port of the sewage pipe. The air bag sealing assembly can span the port of the sewage pipe through the first clamping part and the second clamping part. Even if the water flow impacts, the first clamping part, the second clamping part and the air bag sealing assembly can withstand the impact of the water flow on the air bag main body, reduce the physical strength consumed by workers pulling the air bag main body, and reduce the labor intensity.

[0004] In order to achieve the above object, the utility model provides a kind of deep burying position sewage pipe interception sealing air bag device, including

[0005] Air bag main body, the air bag main body can be pressed to occur deformation and expand;

[0006] Air bag plugging assembly, the air bag plugging assembly is sealed with the air bag main body Connection;

[0007] First clamping part, the first clamping part is connected with one side of the air bag plugging assembly, the first clamping part is provided with the slot for rope connection, the first clamping part can be stuck to the port side of sewage pipe;

[0008] Second clamping part, the second clamping part is connected with the other side of the air bag plugging assembly, the second clamping part can be stuck to the other side of the port of sewage pipe, the air bag plugging assembly can be across with the port of sewage pipe by the first clamping part and the second clamping part.

[0009] Further, as more preferred embodiment of the utility model, the first clamping part includes the first step part being arranged on the main body of the first clamping part, and the first step part is used for clamping to one side of the port of sewage pipe;And / or the second clamping part includes the second step part being arranged on the main body of the second clamping part, and the second step part is used for clamping to the other side of the port of sewage pipe.

[0010] Further, as more preferred embodiment of the utility model, the second clamping part can be detachably connected with the first clamping part by penetrating the air bag plugging assembly.

[0011] Further, as more preferred embodiment of the utility model, the air bag plugging assembly includes:

[0012] Support, the support is used to be connected with the first clamping part and the second clamping part, and the support is provided with threaded through hole;

[0013] First clamping piece and second clamping piece, the middle part of the first clamping piece and the second clamping piece is provided with movable window, and the port of the air bag main body can pass through the movable window of the first clamping piece and is spread around between the first clamping piece and the second clamping piece, and the first clamping piece and the second clamping piece can clamp the outer edge of the port of the air bag main body and be sealedly connected;The support is sealedly connected with one side of the second clamping piece;

[0014] The plugging rod is externally provided with external threads matched with the threaded through hole, and is threadedly connected with the threaded through hole; one end of the plugging rod close to the second clamping piece is provided with a plugging annular protrusion, the plugging rod can be rotated to displace the plugging annular protrusion relative to the support, and the plugging annular protrusion can abut against the end face of the support to form a sealing abutment; the other end of the plugging rod is provided with an inflation connecting port, and the plugging rod is provided with an air inlet port on one side close to the plugging annular protrusion, the inflation connecting port is communicated with the air inlet port, and the air inlet port is screwed into the threaded through hole when the plugging annular protrusion can abut against the end face of the support.

[0015] Further, as a more preferred embodiment of the utility model, the air bag plugging assembly further comprises a rotating handle, the rotating handle is connected with the other end of the plugging rod, and the rotating handle can rotate the plugging rod to rotate the plugging annular protrusion at the other end of the plugging rod and displace relative to the support.

[0016] Further, as a more preferred embodiment of the utility model, the air bag plugging assembly further comprises a pressure gauge, a pressure detection notch is arranged on one side of the plugging rod close to the inflation connecting port, the pressure gauge is detachably connected with the plugging rod, a pressure detection end of the plugging rod can be inserted into the pressure detection notch, and the pressure gauge can detect the pressure of the air bag body in the inflated state.

[0017] Further, as a more preferred embodiment of the utility model, the plugging annular protrusion comprises a tapered connecting portion arranged on one side of the main body of the plugging annular protrusion, the tapered connecting portion is arranged towards the support, and the tapered connecting portion is covered with a rubber sealing element; the threaded through hole is provided with a chamfered portion matched with the tapered connecting portion at one end close to the tapered connecting portion, a sealing ring is arranged in the chamfered portion, and the tapered connecting portion can abut against the sealing ring of the chamfered portion under the action of external force to form a seal.

[0018] Further, as a more preferred embodiment of the utility model, the other side of the support is provided with a mounting notch for connecting the second clamping piece, and one end of the second clamping piece can be inserted into the mounting notch and detachably connected with the mounting notch.

[0019] Further, as a more preferred embodiment of the utility model, the support is provided with a through hole matched with the second clamping piece, and one end of the second clamping piece is threadedly connected with one end of the first clamping piece.

[0020] Based on the same inventive concept, the utility model also provides a kind of cut-off sealing equipment, including above-mentioned deep-lying sewage pipe cut-off sealing air bag device and air pump, the air pump is connected with the inflation connecting port of deep-lying sewage pipe cut-off sealing air bag device.

[0021] A deep-lying sewage pipe cut-off sealing air bag device and cut-off sealing equipment, wherein the first and second clamping members are installed on both sides of the air bag blocking assembly, the air bag main body is placed in the port of the sewage pipe, and the slot of the first clamping member is pulled by the traction rope. The first clamping member is clamped to the top of the port of the sewage pipe, and then the second clamping member is clamped to the bottom of the port of the sewage pipe. The air bag blocking assembly can span the port of the sewage pipe through the first and second clamping members. Even if the water flow impacts, the first and second clamping members and the air bag blocking assembly can withstand the impact of the water flow on the air bag main body, reducing the effort consumed by the worker in pulling the air bag main body and reducing the labor intensity. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 The structure of the deep-lying sewage pipe cut-off sealing air bag device in the embodiment is expanded.

[0023] Figure 2 The structure of the deep-lying sewage pipe cut-off sealing air bag device in the embodiment is expanded.

[0024] Figure 3 The structure of the deep-lying sewage pipe cut-off sealing air bag device in the embodiment is expanded.

[0025] Figure 4 Another structure of the deep-lying sewage pipe cut-off sealing air bag device in the embodiment is expanded.

[0026] REFERENCE NUMERALS:

[0027] Air bag main body.

[0028] Air bag blocking assembly, 21-slot, 22-support, 221-threaded hole, 23-first clamping member, 231-movable window, 24-second clamping member, 25-blocking rod member, 251-blocking rod member, 252-inflation connecting port, 253-air inlet port, 254-conical connecting part, 26-rotary handle, 27-pressure gauge.

[0029] First clamping member, 31-slot, 32-first step.

[0030] Second clamping member, 41-second step. DETAILED DESCRIPTION

[0031] In order to make the technical solution in the present application better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0032] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another component, it can be directly on the other component or indirectly disposed on the other component; when a component is referred to as being "connected to" another component, it can be directly connected to the other component or indirectly connected to the other component.

[0033] It should be understood that the terms "length", "width", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or component referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0034] In addition, the terms "first", "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "a plurality of", "several" is two or more, unless otherwise explicitly specified.

[0035] It should be understood that the structure, proportion, size and the like shown in the drawings of the present specification are only used to cooperate with the content disclosed in the specification, so that those skilled in the art can understand and read, and are not used to limit the implementation conditions of the present application, and therefore do not have technical significance. Any modification of structure, change of proportion relationship or adjustment of size, which does not affect the effect and purpose that can be achieved by the present application, should still fall within the scope of the technical content disclosed by the present application. Embodiment

[0036] The present embodiment aims to facilitate the solution to the process of putting the rubber air bag into the pipeline and pressurizing, which requires the configuration of a traction rope for full traction, and the water flow impact process greatly consumes the physical strength of workers, the labor intensity is high, the cost of plugging manpower is high, and it is urgently needed to reduce the labor intensity of workers. Referring to Figures 1-4As shown, a deep-lying sewage pipe intercepting and sealing air bag device and intercepting and sealing equipment are provided, wherein the first and second clamping members 3 and 4 are respectively arranged on the two sides of the air bag sealing assembly 2, the air bag body 1 is placed at the port of the sewage pipe, and the notch of the first clamping member 3 is pulled through the traction rope. The first clamping member 3 is clamped to one side of the top of the port of the sewage pipe, and then the second clamping member 4 is clamped to the other side of the bottom of the port of the sewage pipe. The air bag sealing assembly 2 can span the port of the sewage pipe through the first and second clamping members 3 and 4. Even if the water flow impacts, the first and second clamping members 3 and 4 and the air bag sealing assembly 2 can withstand the impact of the water flow on the air bag body 1, reducing the strength consumed by the workers in pulling the air bag body 1 and reducing their labor intensity.

[0037] Referring to Figures 1-4 As shown, the deep-lying sewage pipe intercepting and sealing air bag device comprises an air bag body 1, an air bag sealing assembly 2, a first clamping member 3 and a second clamping member 4. The air bag body 1 can be deformed and inflated by pressure. The air bag body 1 can be a multi-specification, multi-shape rubber product for pipeline, culvert water transportation, sewage, and desilting maintenance, which is made of rubber and fiber fabric and other high molecular synthetic materials through high-temperature vulcanization process. The working principle is that the air bag body 1 is inflated by air, and when the gas pressure in the air bag body 1 reaches the specified requirement, the air bag body 1 fills the entire pipeline section, and the friction force between the pipeline sealing air bag wall and the pipeline cuts off the water flow in the pipeline, thereby achieving the purpose of no water flow in the target pipeline section. The air bag sealing assembly 2 is sealingly connected with the air bag body 1. The first clamping member 3 is connected with one side of the air bag sealing assembly 2, and the first clamping member 3 is provided with a notch 31 for connecting the rope. The first clamping member 3 can clamp one side of the port of the sewage pipe. The second clamping member 4 is connected with the other side of the air bag sealing assembly 2, and the second clamping member 4 can clamp the other side of the port of the sewage pipe. The air bag sealing assembly 2 can span the port of the sewage pipe through the first and second clamping members 3 and 4. Exemplarily, the first and second clamping members 3 and 4 can be cylindrical metal rods.

[0038] Referring to Figures 1-4As shown, in some embodiments, the first clamping part 3 comprises a first stepped portion 32 arranged on the main body of the first clamping part 3, which is used to clamp to one side of the port of the blowdown pipe. For example, the first stepped portion 32 can be a step formed at the connection between the air bag blocking assembly 2 and the blowdown pipe. In this way, the main body of the air bag blocking assembly 2 can be arranged close to the top of the port of the blowdown pipe, i.e., the entire cross section of the blowdown pipe is not completely filled with water, but the top is in an unfilled state, i.e., the top position is in a water-free state. Arranging the main body of the air bag blocking assembly 2 close to the top of the port of the blowdown pipe can reserve operation space for the air bag blocking assembly 2, and the first clamping part 3 is short and the second clamping part 4 is long. In some embodiments, the second clamping part 4 comprises a second stepped portion 41 arranged on the main body of the second clamping part 4, which is used to clamp to the other side of the port of the blowdown pipe, i.e., the second stepped portion 41 is arranged away from one end of the air bag blocking assembly 2. The purpose of arranging the first stepped portion 32 and the second stepped portion 41 is to prevent the air bag blocking assembly 2 from being displaced in the radial direction of the blowdown pipe, causing the first clamping part 3 or the second clamping part 4 to be disengaged from the clamping position of the port of the blowdown pipe.

[0039] Referring to Figures 1-4 As shown, the second clamping part 4 can be detachably connected with the first clamping part 3 through the air bag blocking assembly 2. For example, the air bag blocking assembly 2 is provided with a through hole for the second clamping part 4 to fit, and one end of the second clamping part 4 is threadedly connected with one end of the first clamping part 3. In some embodiments, the other side of the air bag blocking assembly 2 is provided with a mounting slot 21 for connecting the second clamping part 4, and one end of the second clamping part 4 can be inserted into the mounting slot 21 and detachably connected with the mounting slot 21, wherein the second clamping part 4 can be bolted with the mounting slot 21 through a fixedly arranged connecting plate.

[0040] Referring to Figures 1-4As shown, the airbag blocking assembly 2 comprises a support 22, a first clamping member 23, a second clamping member 24 and a blocking rod member 25. The support 22 is used to connect with the first clamping member 3 and the second clamping member 4, and the support 22 is provided with a threaded through hole 221. The support 22 can be a flange plate, and the threaded through hole 221 is arranged in the middle of the flange plate. The threaded through hole 221 and the through hole are arranged in a staggered manner in the flange plate. The first clamping member 23 and the second clamping member 24 are both provided with a movable window 231 in the middle, and the movable window 231 can pass through one end of the blocking rod member 25. The port of the airbag body 1 can pass through the movable window 231 of the first clamping member 23 and spread around between the first clamping member 23 and the second clamping member 24. The first clamping member 23 and the second clamping member 24 can clamp the outer edge of the port of the airbag body 1 and be sealedly connected. The first clamping member 23 and the second clamping member 24 can also be supplemented with sealing glue to assist in sealing while clamping the port of the airbag body 1. The support 22 is sealedly connected with one side of the second clamping member 24. It should be noted that the support 22 and the second clamping member 24 are also provided with a sealing rubber ring. The first clamping member 23 and the second clamping member 24 can be flange rings with the same circle as the support 22. The flange rings are uniformly provided with connecting hole positions, which are countersunk holes. The two are locked by passing through the connecting hole positions with bolts and connecting nuts. The first clamping member 23 and the second clamping member 24 are also uniformly provided with hole positions connected with the support 22, and can also be locked together by bolts.

[0041] The outer side of the plugging rod 25 is provided with external threads matched with the threaded hole 221, and the plugging rod 25 is screwed with the threaded hole 221; the end of the plugging rod 25 close to the second clamping piece 24 is provided with a plugging annular protrusion 251, the plugging rod 25 can be rotated to displace the plugging annular protrusion 251 relative to the support 22, and the plugging annular protrusion 251 can abut against the end face of the support 22 to form a seal. The other end of the plugging rod 25 is provided with an inflation connection port 252, and the side of the plugging rod 25 close to the plugging annular protrusion 251 is provided with an air inlet port 253, the inflation connection port 252 is communicated with the air inlet port 253, and when the plugging annular protrusion 251 can abut against the end face of the support 22, the air inlet port 253 is screwed into the threaded hole 221. In use, the air inlet port 253 is first screwed out of the threaded hole 221, at which time the inflation connection port 252 is connected to an air pump, inflation is started, and after the pressure gauge 27 shows that the air pressure value reaches the requirement, the air inlet port 253 is screwed into the threaded hole 221, and at the same time the plugging annular protrusion 251 abuts against the end face of the support 22 to form a seal. At the same time, under the high pressure in the air bag main body 1, the worker can rotate the plugging rod 25 better, which is more labor-saving. When the plugging annular protrusion 251 abuts against the end face of the support 22, the high pressure in the air bag main body 1 makes the plugging annular protrusion 251 abut against the support 22 more tightly, and the sealing effect is better. Illustratively, the inflation connection port 252 can be a tire valve used in existing tires, a one-way valve that inflates and deflates gas or liquid and can maintain and detect internal pressure.

[0042] In some embodiments, the plugging annular protrusion 251 comprises a tapered connecting portion 254 arranged on one side of the main body of the plugging annular protrusion 251, the tapered connecting portion 254 is arranged towards the support 22, and the tapered connecting portion 254 is covered with a rubber sealing piece; the threaded hole 221 is provided with a chamfered portion matched with the tapered connecting portion 254 at the end close to the tapered connecting portion 254, the inside of the chamfered portion is provided with a sealing ring, and the tapered connecting portion 254 can abut against the sealing ring of the chamfered portion under the action of external force to form a seal.

[0043] Referring to Figures 1-4 As shown in the figure, the air bag plugging assembly 2 further comprises a rotating handle 26, the rotating handle 26 is connected to the other end of the outer side of the plugging rod 25, and the rotating handle 26 can rotate the plugging rod 25 to rotate the plugging annular protrusion 251 at the other end of the plugging rod 25 to displace relative to the support 22.

[0044] Referring to Figures 1-4As shown, the air bag plugging assembly 2 further comprises a pressure gauge 27, a pressure detection notch is arranged on one side of the plugging rod 25 close to the inflation connection port 252, the pressure gauge 27 is detachably connected with the plugging rod 25, and the pressure detection end of the plugging rod 25 can be inserted into the pressure detection notch, so that the pressure gauge 27 can detect the pressure of the air bag body 1 in the inflated state.

[0045] The application relates to a kind of cut-off sealing equipment, including deep-lying position sewer cut-off sealing air bag device and air pump, air pump is connected with the inflation connection port 252 of deep-lying position sewer cut-off sealing air bag device.

[0046] The above description of the disclosed embodiments enables those skilled in the art to carry out or use the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A deep buried site sewer intercepting and sealing airbag device, characterized in that, The utility model relates to a kind of inflatable sealing devices, including: Air bag body, the air bag body can be pressed to occur deformation and inflate; Air bag blocking assembly, the air bag blocking assembly is sealed with the air bag body Connection; First clamping part, the first clamping part is connected with one side of the air bag blocking assembly, the first clamping part is provided with the slot for rope connection, the first clamping part can be stuck to the port side of blow-off pipe; Second clamping part, the second clamping part is connected with the other side of the air bag blocking assembly, the second clamping part can be stuck to the other side of the port of blow-off pipe, the air bag blocking assembly can be across with the port of blow-off pipe by the first clamping part and the second clamping part.

2. The deep-set site sewer intercept sealing air bag device of claim 1, wherein, The first clamping part includes the first step part provided on the main body of the first clamping part, and the first step part is used for clamping to one side of the port of blow-off pipe;And / or the second clamping part includes the second step part provided on the main body of the second clamping part, and the second step part is used for clamping to the other side of the port of blow-off pipe.

3. The deep-set site sewer intercept sealing air bag device of claim 1, wherein, The second clamping part can be detachably connected with the first clamping part through the air bag blocking assembly.

4. The deep-set site sewer intercept sealing air bag device of claim 1, wherein, The air bag blocking assembly includes: Support, the support is used to be connected with the first clamping part and the second clamping part, and the support is provided with a threaded hole; First clamping part and second clamping part, the middle part of the first clamping part and the second clamping part is provided with a movable window, and the port of the air bag body can pass through the movable window of the first clamping part and spread between the first clamping part and the second clamping part, the first clamping part and the second clamping part can clamp the outer edge of the port of the air bag body and be sealedly connected;The support is sealedly connected with one side of the second clamping part; Blocking rod, the outer side of the blocking rod is provided with an external thread matched with the threaded hole, and the blocking rod is threadedly connected with the threaded hole;The blocking ring-shaped protrusion is arranged on one end of the blocking rod close to the second clamping part, and the blocking ring-shaped protrusion can be displaced relative to the support by rotating the blocking rod, and the blocking ring-shaped protrusion can be abutted on the end surface of the support to form a sealed abutment;The other end of the blocking rod is provided with an inflation connection port, and the air inlet port is arranged on one side of the blocking rod close to the blocking ring-shaped protrusion, the inflation connection port is communicated with the air inlet port, and when the blocking ring-shaped protrusion can be abutted on the end surface of the support, the air inlet port is screwed into the threaded hole.

5. The deep-set site sewer intercept sealing air bag device of claim 4, wherein, The air bag blocking assembly further includes a rotating handle, the rotating handle is connected with the other end of the outer side of the blocking rod, and the rotating handle can rotate the blocking rod to make the blocking ring-shaped protrusion located at the other end of the blocking rod rotate and displace relative to the support.

6. The deep-set site sewer intercept sealing air bag device of claim 4, wherein, The air bag blocking assembly further includes a pressure gauge, and the pressure detection slot is arranged on one side of the blocking rod close to the inflation connection port, the pressure gauge is detachably connected with the blocking rod, the pressure detection end of the blocking rod can be inserted into the pressure detection slot, and the pressure gauge can detect the pressure of the air bag body in the inflated state.

7. The deep-set site sewer intercept sealing air bag device of claim 4, wherein, The sealing annular protrusion comprises a tapered connecting part arranged on one side of the main body of the sealing annular protrusion, the tapered connecting part is arranged towards the support, and the tapered connecting part is covered with a rubber sealing element; a chamfered part matched with the tapered connecting part is arranged at one end of the threaded through hole close to the tapered connecting part, a sealing ring is arranged in the chamfered part, and the tapered connecting part can press on the sealing ring of the chamfered part under the action of external force to form a seal.

8. The deep-set site sewer intercept sealing air bag device of claim 4, wherein, The other side of the support is provided with a mounting notch for connecting the second clamping part, one end of the second clamping part can be inserted into the mounting notch and detachably connected with the mounting notch.

9. The deep-set site sewer intercept sealing air bag device of claim 4, wherein, The support is provided with a through hole matched with the second clamping part, and one end of the second clamping part is threadedly connected with one end of the first clamping part.

10. A flow intercept closure apparatus, characterized by, The deep-buried sewage pipe interception sealing air bag device comprises a deep-buried sewage pipe interception sealing air bag device and an air pump, and the air pump is connected with the inflation connecting port of the deep-buried sewage pipe interception sealing air bag device.

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