Plugging device for installation of drainage pipeline

Abstract

The utility model relates to the technical field of pipeline plugging, in particular to a plugging device for installing a drainage pipeline. The connecting stability between the air bag and a drainage pipeline can be improved, and the accident rate of outward sliding of the air bag is effectively reduced; comprising an inner supporting pipe, an air bag installed on the inner supporting pipe, an inflation pump arranged in the inner supporting pipe and providing a compressed air source for the air bag and an outer supporting clamping mechanism, and the outer supporting clamping mechanism comprises an annular frame, clamping assemblies evenly distributed on the annular frame in the circumferential direction, a rod frame integrally connected with the annular frame and an installation disc installed on the annular frame; the inner supporting pipe is mounted in the center of the mounting disc, and the clamping assembly comprises a feeding driving piece arranged in the radial direction of the ring frame and a V-shaped clamp mounted at the output end of the feeding driving piece; the installation disc is installed on the rod frame in a sliding mode, a conical plug is fixedly installed on the installation disc, a fixing disc is fixedly installed at the end, away from the ring frame, of the rod frame, and a pushing feeder for providing power for sliding of the installation disc is installed on the fixing disc.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of pipeline plugging, in particular to a plugging device for drainage pipeline installation. BACKGROUND

[0002] It is known that the sealing performance of the drainage pipeline needs to be detected during installation, and therefore the port of the drainage pipeline needs to be plugged; the existing drainage pipeline plugging device mostly adopts the air bag type.

[0003] For example, a drainage pipeline air bag plugging device is disclosed in Chinese Utility Model Patent CN221483008U; it comprises a support rod, the outer wall surface of the support rod is sleeved with a drainage pipeline plugging air bag, connecting placement grooves are formed at both ends of the support rod, internal threads are formed in the inner wall surface of the connecting placement grooves, and inflation tubes are fixedly connected to the inner side bottom end of the connecting placement grooves. The support rod is provided to facilitate supporting the drainage pipeline plugging air bag, thereby avoiding the drainage pipeline plugging air bag from being kneaded into a ball after deflation, and avoiding the inflation tube from being scratched by external objects and causing air leakage when the drainage pipeline plugging air bag is idle.

[0004] However, when this device is implemented, the following defects are found: the sealing of the drainage pipeline is achieved by the contact between the outer wall of the air bag and the inner wall of the drainage pipeline, the friction between the air bag and the inner wall of the drainage pipeline is small, and especially when the vertical drainage pipeline is subjected to the closed water test, the air bag is easy to slide out of the inside of the drainage pipeline under the action of water pressure and its own gravity, and has certain use limitations. UTILITY MODEL CONTENTS

[0005] (I) Technical problem solved

[0006] In view of the deficiencies of the prior art, the utility model provides a plugging device for drainage pipeline installation, which improves the connection stability with the drainage pipeline and effectively reduces the air bag sliding out accident rate.

[0007] (II) Technical scheme

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a plugging device for drainage pipeline installation, comprising an inner support pipe, an air bag installed on the inner support pipe, an inflation pump built-in the inner support pipe and providing a pressure source for the air bag, and an outer support clamping mechanism, the outer support clamping mechanism comprises a ring frame, a clamping assembly uniformly distributed on the ring frame, a rod frame integrally connected with the ring frame, and a mounting disc installed on the ring frame, the inner support pipe is installed at the center of the mounting disc, the clamping assembly comprises a feed drive arranged radially along the ring frame and a V-shaped clamp installed on the output end of the feed drive, and further, the feed drive can adopt a linear motor, an air cylinder, a threaded screw or other equivalent components with the function of driving the V-shaped clamp to feed linearly along the radial direction of the ring frame.

[0009] Preferably, the mounting disc is slidingly mounted on the rod frame, a conical plug is fixedly mounted on the mounting disc, a fixed disc is fixedly mounted on the rod frame away from the ring frame, and a pushing feeder for providing power for the sliding of the mounting disc is mounted on the fixed disc; further, the rod frame comprises a plurality of sliding rods which are uniformly distributed along the circumference of the mounting disc; the pushing feeder is preferably a drive screw which is screwed on the fixed disc, the drive screw is rotationally connected with the mounting disc, a hand wheel is fixedly mounted on the drive screw; the pushing feeder can also adopt a cylinder or other equivalent components with linear feeding driving effect; the conical plug is preferably made of flexible rubber material.

[0010] Preferably, a spring is sleeved on the rod frame, and the mounting disc is elastically connected with the ring frame through the spring.

[0011] Preferably, a plurality of groups of inner support assemblies are mounted on the outer wall of the inner support pipe and are uniformly distributed in the circumferential direction, the inner support assembly comprises a support rod which is hingedly mounted on the inner support pipe and a telescopic cylinder which provides power for the rotation of the support rod, one end of the telescopic cylinder is hingedly connected with the outer wall of the inner support pipe, the other end of the telescopic cylinder is hingedly connected with the middle part of the support rod, and the support rod is arranged in correspondence with the clamping assembly.

[0012] Preferably, a roller is rotationally mounted on the end of the support rod, and the roller is made of flexible rubber material.

[0013] Preferably, the conical plug is detachably mounted on the mounting disc through a bolt.

[0014] Preferably, a rubber pad is mounted on the V-shaped card.

[0015] Preferably, the air bag comprises two hard ring parts which are fixedly connected with the inner support pipe and a flexible bag part which is located between the hard ring parts.

[0016] (Three) beneficial effects

[0017] Compared with the prior art, the utility model provides a plugging device for drainage pipeline installation has the following beneficial effects: the plugging device for drainage pipeline installation, through the inner support pipe communication bag extends to the port of the drainage pipeline to be plugged, and the outer support clamping mechanism is sleeved on the outer wall of the drainage pipeline, synchronous starting each feeding driver makes the V type card and drainage pipe outer wall contact and fixedly clamped, at this time, the center axis of the inner support pipe coincides with the center axis of the drainage pipeline, through the inflation pump pressurizes in the air bag, the air bag expands outward and is plugged through the inner wall of the drainage pipeline, under the action of the outer support clamping mechanism, the connection stability between the plugging device and the drainage pipeline can be improved, and the friction between the plugging device and the drainage pipeline is improved, and the air bag sliding accident rate is effectively reduced. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is the isometric structure schematic diagram of the utility model.

[0019] Figure 2 is a top view structure schematic diagram of the utility model;

[0020] Figure 3 is another perspective structure schematic diagram of the utility model Figure 2 is a section structure schematic diagram at A-A of the utility model;

[0021] Figure 4 is another perspective structure schematic diagram of the utility model;

[0022] In the drawing, 1 is an inner support pipe, 2 is an air pump, 3 is a ring frame, 4 is a rod frame, 5 is a mounting disc, 6 is a feeding drive, 7 is a V-shaped clamp, 8 is a conical plug, 9 is a fixing disc, 10 is a pushing feeder, 11 is a spring, 12 is a support rod, 13 is a telescopic air cylinder, 14 is a roller, 15 is a rubber pad, 16 is a hard ring part, and 17 is a flexible bag part. DETAILED DESCRIPTION

[0023] In order to make the personnel in the technical field better understand the utility model scheme, the technical scheme in the utility model embodiment will be clearly and completely described below in combination with the drawings in the utility model embodiment.

[0024] A drainage pipeline air bag plugging device as described in the background art; the sealing of the drainage pipeline is realized by the contact between the outer wall of the air bag and the inner wall of the drainage pipeline, the friction between the air bag and the inner wall of the drainage pipeline is small, and especially when the closed water test is performed on the vertical drainage pipeline, the air bag is easy to slide out of the inside of the drainage pipeline under the action of water pressure and its own gravity, and has certain use limitations.

[0025] In order to solve the technical problem, the utility model provides a plugging device for drainage pipeline installation, which is applied to the plugging of the end part of the drainage pipeline.

[0026] Specifically, please refer to Figures 1-4 A plugging device for drainage pipeline installation specifically comprises an inner support pipe 1, an air bag mounted on the inner support pipe 1, an air pump 2 built in the inner support pipe 1 and providing a pressure air source for the air bag, and an outer support clamping mechanism, the outer support clamping mechanism comprises a ring frame 3, a clamping assembly uniformly distributed in the circumferential direction of the ring frame 3, a rod frame 4 integrally connected with the ring frame 3, and a mounting disc 5 mounted on the ring frame 3, the inner support pipe 1 is installed at the center of the mounting disc 5, the clamping assembly comprises a feeding drive 6 arranged in the radial direction of the ring frame 3 and a V-shaped clamp 7 mounted on the output end of the feeding drive 6; further, the feeding drive 6 can adopt a linear motor, an air cylinder, a threaded screw or other equivalent components with the function of driving the V-shaped clamp 7 to feed in the radial direction of the ring frame 3.

[0027] The plugging device for drainage pipeline installation can improve the connection stability between the plugging device and the drainage pipeline, improve the friction between the plugging device and the drainage pipeline, effectively reduce the incidence of air bag outer sliding accidents, improve the position accuracy of the air bag installed in the drainage pipeline, and improve the concentricity between the air bag and the drainage pipeline, so that the air bag and the inner wall of the drainage pipeline are well combined.

[0028] It should be noted that the embodiments in the utility model and the features and technical solutions in the embodiments can be combined with each other without conflict.

[0029] It should be noted that: similar signs and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.

[0030] Embodiment 1

[0031] Please refer to Figures 1-3 A plugging device for drainage pipeline installation comprises an inner support pipe 1, an air bag installed on the inner support pipe 1, an inflation pump 2 built in the inner support pipe 1 and providing a pressure air source for the air bag, and an outer support clamping mechanism. The outer support clamping mechanism comprises a ring frame 3, a clamping assembly uniformly distributed on the ring frame 3 in the circumferential direction, a rod frame 4 integrally connected with the ring frame 3, and a mounting disc 5 installed on the ring frame 3. The inner support pipe 1 is installed at the center of the mounting disc 5. The clamping assembly comprises a feeding drive 6 arranged radially along the ring frame 3 and a V-shaped clamp 7 installed on the output end of the feeding drive 6.

[0032] Specifically, please refer to Figure 3 The mounting disc 5 is slidingly installed on the rod frame 4. A conical plug 8 is fixedly installed on the mounting disc 5. A fixed disc 9 is fixedly installed on the end of the rod frame 4 away from the ring frame 3. A pushing feeder 10 is installed on the fixed disc 9 to provide power for the sliding of the mounting disc 5. Further, the rod frame 4 comprises a plurality of sliding rods uniformly distributed in the circumferential direction of the mounting disc 5. The pushing feeder 10 is preferably a drive screw screwedly installed on the fixed disc 9. The drive screw is rotationally connected with the mounting disc 5. A hand wheel is fixedly installed on the drive screw. The pushing feeder 10 can also be a cylinder or other equivalent components with linear feeding driving effect. The conical plug 8 is preferably made of flexible rubber material.

[0033] Specifically, the rod frame 4 is sleeved with a spring 11. The mounting disc 5 is elastically connected with the ring frame 3 through the spring 11.

[0034] The conical plug 8 is detachably installed on the mounting disc 5 through bolts.

[0035] A rubber pad 15 is installed on the V-shaped clamp 7.

[0036] The air bag comprises two hard ring parts 16 fixedly connected with the inner supporting tube 1 and a flexible bag part 17 between the hard ring parts 16.

[0037] The plugging device for installing the drainage pipeline provided in the embodiment can improve the plugging performance of the plugging device on the drainage pipeline. The spring 11 can promote the installation disc 5 to reset automatically after the installation disc 5 is separated from the pushing feeder 10 and the force of the spring 11 is applied, thereby improving the resetting smoothness of the installation disc 5. The rubber pad 15 can enable the V-shaped clamps 7 to be in flexible contact with the outside of the drainage pipeline, thereby reducing the accident rate of damage to the drainage pipeline caused by the V-shaped clamps 7. The hard ring part 16 can improve the structural strength of the air bag as a whole, thereby avoiding excessive bending and deformation of the air bag and improving the stretching smoothness of the flexible bag part 17 during inflation.

[0038] Embodiment 2

[0039] The plugging device for installing the drainage pipeline provided in Embodiment 1 is further optimized. Specifically, a plurality of groups of inner supporting assemblies are installed on the outer wall of the inner supporting tube 1. The inner supporting assembly comprises a supporting rod 12 hingedly installed on the inner supporting tube 1 and a telescopic air cylinder 13 for providing power for the rotation of the supporting rod 12. One end of the telescopic air cylinder 13 is hingedly connected to the outer wall of the inner supporting tube 1, and the other end of the telescopic air cylinder 13 is hingedly connected to the middle part of the supporting rod 12. The supporting rod 12 is arranged corresponding to the clamping assembly. Further, the telescopic air cylinder 13 is provided with a compressed air source by a gas pump.

[0040] Specifically, the end part of the supporting rod 12 is rotatably installed with a roller 14 made of flexible rubber material.

[0041] The plugging device for installing the drainage pipeline provided in the embodiment can improve the plugging performance of the plugging device on the drainage pipeline. The spring 11 can promote the installation disc 5 to reset automatically after the installation disc 5 is separated from the pushing feeder 10 and the force of the spring 11 is applied, thereby improving the resetting smoothness of the installation disc 5. The rubber pad 15 can enable the V-shaped clamps 7 to be in flexible contact with the outside of the drainage pipeline, thereby reducing the accident rate of damage to the drainage pipeline caused by the V-shaped clamps 7. The hard ring part 16 can improve the structural strength of the air bag as a whole, thereby avoiding excessive bending and deformation of the air bag and improving the stretching smoothness of the flexible bag part 17 during inflation.

[0042] The use process of the plugging device for installing a drainage pipeline is as follows: the inner support pipe 1 is connected to the capsule and is inserted into the port of the drainage pipeline to be plugged, the inner support assembly is started and supports the inner wall of the drainage pipeline, the outer support clamping mechanism is sleeved on the outer wall of the drainage pipeline, each feeding driving piece 6 is synchronously started, the V-shaped clamps 7 are in contact with and fixedly clamped with the outer wall of the drainage pipeline through the rubber pads 15, at this time, the central axis of the inner support pipe 1 coincides with the central axis of the drainage pipeline, the air bag is expanded and plugged through the inner wall of the drainage pipeline by the inflation pump 2.

[0043] In the utility model, unless another definite provision and limitation, the terms "mount", "link", "connect", "fix" and the like terms should be broad sense understanding, for example, can be fixed connection, also can be detachable connection, or be integrated; can be mechanical connection, also can be electric connection or each other can communicate; can be directly connected, also can indirectly connect through intermediate medium, can be two element internal communication or two element mutual action relation, unless another definite limitation. For ordinary skilled person in the art, the above terms can be understood according to the specific meaning of the utility model in the specific circumstances.

[0044] Obviously, the above-described embodiments are only a part of the embodiments of the utility model, and are not all the embodiments, and the preferred embodiments of the utility model are given in the drawings, but do not limit the patent range of the utility model. The utility model can be realized in many different forms, and contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the utility model more thorough and comprehensive. Although the utility model is described in detail with reference to the foregoing embodiments, for those skilled in the art, the technical scheme recorded in the foregoing each specific embodiment can be modified, or some technical features can be replaced equivalently. Any equivalent structure made by using the contents of the utility model specification and drawings, directly or indirectly used in other related technical fields, is also in the patent protection range of the utility model.

Claims

1. A stoppering device for use in the installation of a drain pipe, characterised in that, The utility model provides a kind of inflatable tube, which comprises an inner supporting tube (1), an air bag mounted on the inner supporting tube (1), an air pump (2) built-in the inner supporting tube (1) and providing a pressurized air source for the air bag, and an outer supporting clamping mechanism, the outer supporting clamping mechanism comprises a ring frame (3), a clamping assembly uniformly distributed on the ring frame (3), a rod frame (4) integrally connected with the ring frame (3) and a mounting disc (5) mounted on the ring frame (3), the inner supporting tube (1) is mounted at the center of the mounting disc (5), and the clamping assembly comprises a feed drive (6) arranged radially along the ring frame (3) and a V-shaped clamp (7) mounted on the output end of the feed drive (6).

2. A stoppering device for drain line installation according to claim 1, characterized in that The mounting disc (5) is slidably mounted on the rod frame (4), a tapered plug (8) is fixedly mounted on the mounting disc (5), a fixed disc (9) is fixedly mounted on the end of the rod frame (4) away from the ring frame (3), and a push feeder (10) is mounted on the fixed disc (9) to provide power for the sliding of the mounting disc (5).

3. A stoppering device for drain line installation according to claim 2, characterised in that, A spring (11) is sleeved on the rod frame (4), and the mounting disc (5) is elastically connected with the ring frame (3) through the spring (11).

4. The stoppering device for drain line installation of claim 2, wherein, A plurality of groups of inner supporting assemblies are uniformly distributed on the outer wall of the inner supporting tube (1), the inner supporting assembly comprises a supporting rod (12) hingedly mounted on the inner supporting tube (1) and an extension cylinder (13) providing power for the rotation of the supporting rod (12), one end of the extension cylinder (13) is hingedly connected with the outer wall of the inner supporting tube (1), the other end of the extension cylinder (13) is hingedly connected with the middle part of the supporting rod (12), and the supporting rod (12) is arranged corresponding to the clamping assembly.

5. A stoppering device for use in drain plumbing according to claim 4, characterised in that, A roller (14) is rotatably mounted on the end of the supporting rod (12), and the roller (14) is made of flexible rubber material.

6. The stoppering device for drain line installation of claim 2, wherein, The tapered plug (8) is detachably mounted on the mounting disc (5) by bolts.

7. The stoppering device for drain line installation of claim 1, wherein, A rubber pad (15) is mounted on the V-shaped clamp (7).

8. The stoppering device for drain line installation of claim 1, wherein, The air bag comprises two hard ring parts (16) fixedly connected with the inner supporting tube (1) and a flexible bag part (17) located between the hard ring parts (16).

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