CN214535110U - Hose bearing structure and pipeline inner wall prosthetic devices - Google Patents
Hose bearing structure and pipeline inner wall prosthetic devices Download PDFInfo
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- CN214535110U CN214535110U CN202120313281.1U CN202120313281U CN214535110U CN 214535110 U CN214535110 U CN 214535110U CN 202120313281 U CN202120313281 U CN 202120313281U CN 214535110 U CN214535110 U CN 214535110U
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Abstract
The utility model provides a hose bearing structure and pipeline inner wall prosthetic devices, including the main shaft and along the radial many support arms that extend of main shaft, the end of every support arm all is provided with supports the head, the main shaft is hollow structure, the support arm is including the first section arm and the second section arm that all are the tube-shape, first section arm first end and main shaft through connection, second section arm first end is sealed to slide and inserts and locates in first section arm second end, second section arm second end and support first fixed connection, the gas tube is connected to the main shaft, support the head and include the backup pad, the piece that expands and the bloated piece mounting panel, the backup pad is hollow structure, inboard and second section arm through connection of backup pad, open the backup pad outside has the air vent, the bloated piece mounting panel is equipped with a plurality of mounting plate hole position relative, the piece that expands is pressfitting to the backup pad outside, the downthehole bloated piece of mounting panel can be the inflation and be the gasbag form. The utility model discloses can realize the pipeline restoration in the support hose, and can avoid producing the jamming phenomenon in the repair process.
Description
Technical Field
The utility model relates to a pipeline repair technical field particularly, relates to a hose bearing structure and pipeline inner wall prosthetic devices.
Background
Municipal pipelines are one of important projects of urban infrastructure, wherein drainage pipelines are mainly used for collecting and discharging domestic sewage, industrial wastewater and rainwater in time so as to ensure the environmental sanitation of cities and the life and property safety of people. The drainage pipeline is generally made of concrete, metal or plastic, and is corroded by internal sewage or bitten by animals, and after the drainage pipeline runs for a period of time, the surface of the inner wall of the pipeline is likely to be structurally stripped, so that the pipeline wall becomes thin or even partially collapses, the pipeline is blocked and leaks, the urban environmental sanitation is seriously affected, and the life and property safety is threatened. Therefore, the drainage pipeline needs to be inspected regularly or as needed, and the drainage pipeline is overhauled in time when defects are found. Other utility pipes, such as water supply pipes, gas pipes, heat pipes, etc., have internal walls that are more or less worn after a period of operation.
Because there are many structures on the urban ground usually, generally adopt the non-excavation technology to repair the municipal pipeline thus avoid causing the influence to people's daily life, ultraviolet light solidification CIPP repairs the technology to be common non-excavation pipeline at present, its principle is to make the flexible pipe soaked with resin closely laminate with the pipeline inner wall to be repaired through the way of blowing up at first, then utilize the characteristic that the resin meets the ultraviolet curing in the flexible pipe, put the ultraviolet lamp into the air-filled flexible pipe and make the flexible pipe solidify, cling to the pipeline inner wall to be repaired, form a layer of hard "tube-in-tube" structure, thus make the underground pipeline damaged or lost the transport function get the repair in situ. In the method, the operation of placing the ultraviolet lamp into the hose is required to be rapid, otherwise, the hose is easy to collapse, so that the ultraviolet lamp cannot be placed into the hose, and the requirement on the operation experience of workers is high.
SUMMERY OF THE UTILITY MODEL
A first object of the utility model is to provide a hose supporting structure, hose support work when it can be applicable to impaired pipeline inner wall and restoreed.
A second object of the utility model is to provide a pipeline inner wall prosthetic devices, the supporting hose goes on simultaneously with the curing hose, and the work progress is smooth does not have the jamming, and the efficiency of construction is high.
The embodiment of the utility model discloses a realize through following technical scheme:
a hose supporting structure comprises a main shaft and a plurality of supporting arms extending along the radial direction of the main shaft, wherein the tail end of each supporting arm is provided with a supporting head, the supporting arms are divided into two groups along the axial direction of the main shaft, each group of supporting arms are uniformly distributed at intervals along the circumferential direction of the main shaft, and the distribution positions of the two groups of supporting arms are staggered; the main shaft is hollow structure, and the support arm is including the first section arm and the second section arm that all are the tube-shape, first section arm first end and main shaft through connection, and the sealed slip of second section arm first end is inserted and is located first section arm second end, second section arm second end and support first fixed connection, and the pipeline is aerifyd in the main shaft connection.
The supporting head comprises a supporting plate, an expansion piece and an expansion piece mounting plate, the supporting plate is of a hollow structure, the inner side of the supporting plate is in through connection with the second section arm, an air vent is formed in the outer side of the supporting plate, the expansion piece mounting plate is provided with a plurality of mounting plate holes opposite to the air vent, and the expansion piece is tightly sealed and pressed to the outer side of the supporting plate by the expansion piece mounting plate, so that the expansion piece in the mounting plate hole can be expanded to be in an air bag shape.
Furthermore, the support heads are in an arc shape matched with the curvature of the inner wall of the pipeline, the number of each group of support arms is 4, and the arc length of each support head is 1/8-1/4 of the perimeter of the hose.
Further, the expansion sheet mounting plate comprises four corner plates which can be enclosed to form a frame, the corner plates are L-shaped, one ends of the corner plates are in sealing fit with the side faces of the supporting plate, the other ends of the corner plates press the edges of the expansion sheets to be in sealing fit with the supporting plate, hard pressing strips are connected between a pair of longer corner plates, the pressing strips press the expansion sheets on the lower portions of the pressing strips to be in sealing fit with the supporting plate, and mounting plate holes are formed between the corner plates and the pressing strips and between the pressing strips.
A device for repairing the inner wall of a pipeline comprises the hose supporting structure, and a hose heating structure is fixedly connected to one side of a supporting plate.
Further, the hose heating structure comprises a connecting plate fixedly connected with the supporting plate, and a flame gun or an electric heating wire is installed on the outer side of the connecting plate.
Further, the main shaft end is provided with guide structure, guide structure includes universal wheel and installation pole, installation pole quantity is three, the installation pole includes first section pole and second section pole, first section pole first end just follows the main shaft and radially extends with main shaft fixed connection, the even interval distribution of circumference along the main shaft of first section pole, second section pole first end is articulated with first section pole second end, second section pole second end and universal wheel fixed connection, first section pole, be connected with compression spring between the second section pole, the second section pole struts the inner wall laminating that the rear universal wheel can with the hose.
Further, pipeline inner wall prosthetic devices still includes pulls the structure, pulls the structure and includes haulage rope, wiring post and gear motor, and the wiring post is rotatory by gear motor drive, haulage rope first end fixed connection in wiring post, haulage rope second end and main shaft fixed connection.
Furthermore, the three second section rods are sleeved through shearable rubber bands to enable the installation rods to be in a folding and accommodating shape.
The utility model discloses technical scheme has following advantage and beneficial effect at least:
(1) the utility model discloses hose bearing structure mainly used pipe inner wall is restoreed, place the hose in treating prosthetic pipeline, hose bearing structure gets into behind the hose, aerify to the main shaft, then the second section arm is stretched out by first section arm, thereby the support arm is whole to be increased will support the head and outwards push, make support head roof pressure hose inner wall play support hose's effect, when one section pipeline restores the back hose bearing structure that finishes and need move ahead, because there is the bellying probably in the pipe inner wall, if hose bearing structure is whole to be the rigidity, then very easily produce jamming phenomenon when meetting the arch of pipe inner wall and lead to hose bearing structure can't move ahead. In order to solve the problems, the support head is internally provided with the expansion sheet which can be inflated to form an air bag, and when the hose support structure moves forwards and meets the bulge part of the inner wall of the pipeline, the air bag-shaped expansion sheet can be extruded and deformed, so that the hose support structure can smoothly pass through obstacles to avoid the clamping stagnation phenomenon. Simultaneously, when the pipeline inner wall has the depressed part, the bloated piece can also outwards expand to a certain extent to guarantee that this department hose and pipeline closely laminate in this department, reach the purpose that supports the hose comprehensively, make hose and the pipeline of waiting to restore fully laminate.
(2) The utility model discloses pipeline inner wall prosthetic devices, except the beneficial effect of above-mentioned (1), be in the same place hose heating structure and hose bearing structure are integrated for the supporting hose goes on simultaneously with the curing hose, and pipeline wall prosthetic devices is restoreed through part pipeline inner wall promptly, and the process is simple, convenient operation.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic structural diagram of a hose supporting structure according to embodiment 1 of the present invention, in which a dotted line is a drawing omitted for the same structure as the support arm and the support head in the drawing;
fig. 2 is a schematic view of an airbag formed after an expansion sheet in a support head of a hose support structure provided in embodiment 1 of the present invention is inflated;
fig. 3 is a schematic view of an installation structure of an expansion sheet in a hose support structure provided in embodiment 1 of the present invention;
fig. 4 is a schematic structural view of a pipeline inner wall repair device provided in embodiment 2 of the present invention, wherein the hose supporting structure is omitted from the drawings, and specifically refer to fig. 1 and 2;
fig. 5 is a schematic structural view of a hose heating structure and a support head of a pipeline inner wall repair device provided in embodiment 2 of the present invention;
fig. 6 is a schematic view of the construction operation of the method for repairing the inner wall of the pipeline provided in embodiment 3 of the present invention;
icon: 100-hose support structure, 110-main shaft, 120-support arm, 121-first section arm, 122-second section arm, 130-support head, 131-support plate, 1311-vent hole, 132-expansion sheet, 133-expansion sheet mounting plate, 1331-mounting plate hole, 1332-angle plate, 1333-pressing bar, 200-hose heating structure, 210-connecting plate, 220-heating wire, 300-guide structure, 310-universal wheel, 320-mounting rod, 321-first section rod, 322-second section rod, 323-compression spring, 400-traction structure, 410-traction rope, 420-rope winding column, 430-speed reducing motor, 510-first well head, 520-second well head, 530-hose and 540-pipeline.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that, if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship which is usually placed when the product of this application is used, the description is only for convenience of description and simplification, but the indication or suggestion that the device or element to be referred must have a specific orientation, be constructed in a specific orientation and be operated is not to be construed as limiting the present invention.
In the description of the present invention, it should be further noted that unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example 1
As shown in fig. 1 and fig. 2, the present embodiment provides a hose supporting structure 100, which includes a main shaft 110 and a plurality of supporting arms 120 extending along a radial direction of the main shaft 110, wherein a supporting head 130 is disposed at a distal end of each supporting arm 120, the supporting arms 120 are divided into two groups along an axial direction of the main shaft 110, each group of supporting arms 120 is uniformly spaced along a circumferential direction of the main shaft 110, and distribution positions of the two groups of supporting arms 120 are staggered; the main shaft 110 is a hollow structure, the support arm 120 includes a first section arm 121 and a second section arm 122 both in a cylindrical shape, a first end of the first section arm 121 is connected with the main shaft 110 in a through manner, a first end of the second section arm 122 is inserted into a second end of the first section arm 121 in a sealing and sliding manner, a second end of the second section arm 122 is fixedly connected with the support head 130, and the main shaft 110 is connected with an inflation pipeline. The utility model discloses hose bearing structure 100, because first section arm 121 and second section arm 122 sliding connection, when main shaft 110 does not ventilate, can accomodate first section arm 121 part to second section arm 122 in, support head 130 to draw close to main shaft 110 simultaneously, two sets of support arms 120 stagger each other and can avoid supporting head 130 to interfere each other when main shaft 110 draws close, whole external diameter is less when hose bearing structure 100 initial condition, only need strut hose 530 slightly this moment and can put into hose 530 with hose bearing structure 100, hose bearing structure 100 gets into behind hose 530, aerify to main shaft 110, then second section arm 122 is stretched out by first section arm 121, thereby support head 130 outwards pushes away support arm 120 whole growth, make support head 130 roof pressure hose 530 inner wall play the effect of supporting hose 530.
Because the flexible tube 530 and the tube are both in a tubular structure, in order to make the abutting surface of the flexible tube 530 and the tube larger during supporting, the supporting head 130 is in a circular arc shape matching with the curvature of the inner wall of the tube, in order to avoid mutual interference between the supporting heads 130 of the flexible tube supporting structure 100 in the initial state, in this embodiment, the number of each group of supporting arms 120 is 4, and the arc length of each supporting head 130 is between 1/8 and 1/4 of the perimeter of the flexible tube 530.
When the main shaft 110 is inflated, the support arm 120 is longest and the expansion piece 132 is inflated to be in the shape of an air bag, the hose support structure 100 is in a support state, and at this time, the outer diameter of the whole support structure is the largest, it should be noted that the outer diameter of the whole hose support structure 100 in the support state should be matched with the pipe diameter of the hose 530, that is, the air bag-shaped expansion piece 132 is just abutted to the inner wall of the hose 530 in the support state. In the supporting state, the air supply to the main shaft 110 is stopped, and the supporting state is maintained by preventing the gas in the hose supporting structure 100 from being lost by means of installing a valve on the main shaft 110 or the air supply pipe.
With the above structure, when the hose supporting structure 100 moves forward to meet the convex portion of the inner wall of the pipe, the air-bag-shaped expansion piece 132 can be extruded and deformed, so that the hose supporting structure 100 can smoothly pass through the obstacle to avoid the occurrence of the clamping stagnation. Meanwhile, when the inner wall of the pipeline has a concave part, the expansion sheet 132 can also expand outwards to a certain extent under the inflation condition, so that the hose 530 and the pipeline are tightly attached to each other at the position, and the purpose of comprehensively supporting the hose 530 is achieved.
The hose 530 in this embodiment is: the non-woven fabric lining pipe or the glass fiber is coated with a polymer coating (PU or PE) on the outer layer, the non-woven fabric lining pipe or the glass fiber is wholly soaked in polyester resin or epoxy resin, the polyester resin or the epoxy resin is thermosetting resin, and the outer diameter of the hose 530 is matched with the inner diameter of the pipeline to be repaired. When the hose support structure 100 in this embodiment is used for repairing the inner wall of a pipeline, it only plays a role of supporting the hose 530, and can be matched with a flame gun, an electric heater, and a nail gun to heat and cure the hose 530 to form a "tube-in-tube", or to attach the hose 530 to the pipeline in a pin manner, thereby repairing the inner wall of the pipeline.
Embodiment 2, this embodiment discloses a pipeline inner wall repair device, which includes the hose supporting structure 100 shown in embodiment 1, as shown in fig. 4 and 5, a hose heating structure 200 is fixedly connected to one side of the supporting plate 131. The material of the hose 530 in this embodiment is the same as that in embodiment 1. The hose heating structure 200 includes a connection plate 210 fixedly connected to the support plate 131, and heating wires 220 are installed at the outer side of the connection plate 210. Of course, in other embodiments of the present invention, the heating wire 220 may be replaced by a flame gun. The hose heating structure 200 is integrated with the hose support structure 100, so that the hose 530 can be cured while the hose 530 is supported, and the hose heating structure is simple in process and convenient to operate. The inner wall device of the pipeline not only can be applied to a drainage pipeline, but also is applicable to repair engineering of municipal pipelines such as water supply pipelines, gas pipelines and heating pipelines, and before construction, water and hazardous gas in the pipeline need to be removed firstly so as to ensure safe and smooth construction.
Because the hose supporting structure 100 is a similar cylindrical structure with a small length, and may be deviated during the traveling process, so that the hose supporting structure 100 cannot fully support the hose 530, in this embodiment, the guiding structure 300 is disposed at the end of the main shaft 110, the guiding structure 300 includes universal wheels 310 and three mounting rods 320, the number of the mounting rods 320 is three, the mounting rods 320 include first rod sections 321 and second rod sections 322, a first end of the first rod section 321 is fixedly connected with the main shaft 110 and extends along the radial direction of the main shaft 110, the first rod sections 321 are uniformly distributed along the circumferential direction of the main shaft 110 at intervals, a first end of the second rod section 322 is hinged to a second end of the first rod section 321, a second end of the second rod section 322 is fixedly connected with the universal wheels 310, a compression spring 323 is connected between the first rod section 321 and the second rod section 322, when the hose supporting structure 100 is in the initial state, the second rod section 322 is folded and stored without affecting the overall outer diameter of the hose supporting structure 100, guarantee that hose bearing structure 100 and guide structure 300 all can get into hose 530 smoothly, hose bearing structure 100 and guide structure 300 get into hose 530 the back, second section pole 322 struts, and universal wheel 310 can be laminated with the inner wall of hose 530, and the skew of hose bearing structure 100 can be avoided to three leading wheels along main shaft 110 circumference evenly distributed, guarantees that hose bearing structure 100 supports and targets in place. In order to facilitate the retraction operation of the guide structure 300, the three second rods 322 are sleeved by shearable rubber bands to make the mounting rod 320 in a folding and accommodating shape.
In order to reduce artifical intensity of labour, improve the efficiency of construction, pipeline inner wall prosthetic devices still includes pulls structure 400 in this application, pull structure 400 and include haulage rope 410, wiring post 420 and gear motor 430, wiring post 420 is rotatory by gear motor 430 drive, haulage rope 410 first end fixed connection is in wiring post 420, haulage rope 410 second end and main shaft 110 fixed connection, utilize gear motor 430 drive wiring post 420 to rotate and coil haulage rope 410 to wiring post 420, thereby realize hose bearing structure 100's removal.
Embodiment 3, this embodiment discloses a method for repairing an inner wall of a pipeline, and as shown in fig. 6, the method for repairing an inner wall of a pipeline using the apparatus of embodiment 2 includes the following steps:
(1) the pipeline 410 to be repaired is positioned between the first wellhead 510 and the second wellhead 520, a hose 530 is put into the pipeline 410 through the first wellhead 510, and the hose 530 is flatly laid and extended to the second wellhead 520; the material of the hose 530 in this embodiment is the same as that in embodiment 2.
(2) The pipe inner wall repairing device is placed in the first well mouth 510, the pipe inner wall repairing device is in an initial state that the second section arm 122 is inserted into the first section arm 121 to the maximum extent, the three second section rods 322 are sleeved by rubber bands to be in a folded state, the outer diameter of the pipe inner wall repairing device is minimum, and the pipe wall repairing device can be placed in the hose 530 only by slightly expanding the end part of the hose 530;
(3) the rubber band is cut off to enable the connecting rod to be in a stretching state, and the universal wheel 310 is elastically conveyed to be in contact with the inner wall of the hose 530;
(4) the spindle 110 is inflated through the inflation tube, air flows through the first section arm 121, the second section arm 122, the support plate 131, the vent hole 1311 and the mounting plate hole 1331, the second section arm 122 is pushed outwards to enable the support arm 120 to grow, and meanwhile, the expansion sheet 132 is inflated to protrude outwards from the mounting plate hole 1331 to form an air bag;
(5) stopping inflating after the air bag is contacted with the inner wall of the hose, connecting the traction rope 410 with the main shaft 110, driving the rope winding column 420 to rotate by the speed reducing motor 430 so as to pull the pipeline wall repairing device to move in the hose, starting the hose heating structure 200 to heat and solidify the hose 530, enabling the supporting hose 530 and the repaired pipeline to be carried out simultaneously, and repairing the inner wall of the pipeline 410 where the pipeline wall repairing device passes;
(6) when the pipeline wall rehabilitation apparatus reaches the vicinity of the second wellhead 520, the pipeline wall rehabilitation apparatus and the pull structure 400 are removed by the second wellhead 520.
The method for repairing the inner wall of the pipeline has the advantages that the hose 530 does not need to be continuously inflated, the operation is simple, the hose 530 is supported and the pipeline 410 is repaired at the same time, the construction process is smooth and free of clamping stagnation, the construction efficiency is high, and the method is particularly suitable for drainage pipelines with inspection wells and other municipal pipelines.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. A hose supporting structure is characterized by comprising a main shaft and a plurality of supporting arms extending along the radial direction of the main shaft, wherein the tail end of each supporting arm is provided with a supporting head, the supporting arms are divided into two groups along the axial direction of the main shaft, each group of supporting arms are uniformly distributed at intervals along the circumferential direction of the main shaft, and the distribution positions of the two groups of supporting arms are staggered; the main shaft is of a hollow structure, the support arm comprises a first section arm and a second section arm which are both cylindrical, the first end of the first section arm is communicated with the main shaft, the first end of the second section arm is hermetically and slidably inserted into the second end of the first section arm, the second end of the second section arm is fixedly connected with the support head, and the main shaft is connected with an inflation pipeline;
the support head includes backup pad, bloated piece and bloated piece mounting panel, the backup pad is hollow structure, the backup pad inboard with second section arm through connection, open in the backup pad outside has the air vent, bloated piece mounting panel be equipped with a plurality of with the mounting plate hole that the air vent position is relative, bloated piece closely seals pressfitting to the backup pad outside by bloated piece mounting panel for the downthehole bloated piece of mounting panel can be inflated and be the gasbag form.
2. The hose support structure of claim 1, wherein the support heads are arcuate to match the curvature of the inner wall of the conduit, the number of arms in each set being 4, and the arc length of each support head being between 1/8 and 1/4 of the circumference of the hose.
3. The hose support structure of claim 2, wherein the mounting plate comprises four corner plates that can be enclosed to form a frame, the corner plates are L-shaped, one end of each corner plate is in sealing engagement with a side of the support plate, the other end of each corner plate presses the edge of each expansion plate into sealing engagement with the support plate, a rigid bead is connected between a pair of longer corner plates, the beads press the lower expansion plates into sealing engagement with the support plates, and the mounting plate holes are formed between the corner plates and the beads and between the beads.
4. A pipeline inner wall repair device, comprising the hose support structure according to any one of claims 1 to 3, wherein a hose heating structure is fixedly connected to one side of the support plate.
5. The pipeline inner wall repair device according to claim 4, wherein the hose heating structure includes a connection plate fixedly connected to the support plate, and a flame gun or a heating wire is installed outside the connection plate.
6. The device for repairing the inner wall of the pipeline as claimed in claim 5, wherein a guide structure is arranged at the end of the main shaft, the guide structure comprises universal wheels and three mounting rods, each mounting rod comprises a first section rod and a second section rod, a first end of each first section rod is fixedly connected with the main shaft and extends in the radial direction of the main shaft, the first section rods are uniformly distributed at intervals along the circumferential direction of the main shaft, a first end of each second section rod is hinged to a second end of each first section rod, a second end of each second section rod is fixedly connected with the universal wheels, compression springs are connected between the first section rods and the second section rods, and the universal wheels can be attached to the inner wall of the hose after the second section rods are spread.
7. The pipe inner wall repair device according to claim 6, further comprising a traction structure, wherein the traction structure comprises a traction rope, a rope winding column and a speed reduction motor, the rope winding column is driven by the speed reduction motor to rotate, a first end of the traction rope is fixedly connected to the rope winding column, and a second end of the traction rope is fixedly connected with the main shaft.
8. The pipe inner wall repair device of claim 7, wherein three of the second rods are sleeved by shearable rubber bands to form the installation rod in a folded receiving shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120313281.1U CN214535110U (en) | 2021-02-03 | 2021-02-03 | Hose bearing structure and pipeline inner wall prosthetic devices |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120313281.1U CN214535110U (en) | 2021-02-03 | 2021-02-03 | Hose bearing structure and pipeline inner wall prosthetic devices |
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| CN214535110U true CN214535110U (en) | 2021-10-29 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114458856A (en) * | 2021-12-16 | 2022-05-10 | 堡森(上海)新材料科技有限公司 | Device and method for repairing water-carrying structure of in-service pipeline |
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2021
- 2021-02-03 CN CN202120313281.1U patent/CN214535110U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114458856A (en) * | 2021-12-16 | 2022-05-10 | 堡森(上海)新材料科技有限公司 | Device and method for repairing water-carrying structure of in-service pipeline |
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