CN215335171U

CN215335171U - Pipeline repairing device with replaceable air bag

Info

Publication number: CN215335171U
Application number: CN202121797491.9U
Authority: CN
Inventors: 不公告发明人
Original assignee: Zhejiang Hengying Ecological Construction Co ltd
Current assignee: Zhejiang Hengying Ecological Construction Co ltd
Priority date: 2021-08-03
Filing date: 2021-08-03
Publication date: 2021-12-28
Anticipated expiration: 2031-08-03

Abstract

The utility model discloses a pipeline repairing device with an air bag replaceable, which comprises a connecting pipe, an expansion unit and two end cover units, wherein the connecting pipe is detachably arranged at an assembling through hole of the expansion unit, each end cover unit is respectively detachably arranged at each protection plate of the expansion unit, when the air bag of the expansion unit is damaged, the end cover units, the expansion unit and the connecting pipe can be separated by detaching the end cover units from the protection plates and detaching the connecting pipe from the assembling through hole of the expansion unit, and the air bag can be replaced by installing the connecting pipe at a new expansion unit and installing the end cover units at the protection plates of the new expansion unit.

Description

Pipeline repairing device with replaceable air bag

Technical Field

The utility model relates to the field of pipeline repair, in particular to a pipeline repair device with a replaceable air bag.

Background

Pipelines, such as drainage pipelines, are important infrastructure in urban infrastructure, which are usually metallic and buried underground. Although the inner and outer walls of the pipe are coated with a corrosion resistant material, the environment in which the pipe is located can still result in a leakage problem as it is susceptible to corrosion. If the leaked pipeline is not repaired in time, the pipeline is easily damaged at the leakage position due to continuous corrosion and the huge pressure of fluid in the pipeline, and then the fluid is leaked. Because the pipeline is buried underground, the existing mode for repairing the pipeline is to dig the ground and repair the leakage position of the pipeline in a mode of exposing the pipeline, and although the mode has a better repairing effect, the mode has larger engineering quantity and lower repairing efficiency, and needs a large amount of manpower and material resources to cause high repairing cost.

SUMMERY OF THE UTILITY MODEL

An object of the present invention is to provide a pipe rehabilitation apparatus for rehabilitating a pipe from the inside thereof to improve the efficiency of rehabilitation of the pipe.

In order to achieve the above object, the present invention adopts a technical solution to provide a pipe repairing apparatus with a replaceable air bag, wherein the pipe repairing apparatus includes:

a connecting pipe, wherein the connecting pipe has a drain passage;

an expansion unit, wherein the expansion unit includes an air bag, two protection plates and an inflation nozzle, and the expansion unit has an assembly penetration hole, the two protection plates are respectively arranged at two opposite ends of the air bag, the inflation nozzle is arranged at the air bag for inflating and deflating the air bag, the assembly penetration hole extends from one protection plate to the other protection plate through the air bag to respectively form an opening at each protection plate, wherein the connection pipe is detachably mounted at the assembly penetration hole of the expansion unit, and two opposite ends of the connection pipe respectively protrude out of the outer side surface of each protection plate; and

two end cover units, wherein each of the end cover units respectively comprises an end cover main body, a plurality of adjusting wheels and a plurality of elastic elements, wherein the end cover main body is provided with an end cover perforation and a plurality of adjusting grooves, the end cover perforation penetrates through two opposite sides of the end cover main body, each adjusting groove respectively extends from the circumferential wall of the end cover main body to the direction of a central position at intervals, each adjusting wheel respectively comprises a wheel arm and a roller rotatably mounted at one end of the wheel arm, the other end of the wheel arm of each adjusting wheel is respectively adjustably mounted at each adjusting groove of the end cover main body, and the elastic elements are arranged between the end cover main body and the wheel arm in a mode of being positioned at the adjusting grooves of the end cover main body, and the end cover main body is detachably mounted at the protection plate, and a portion of the connection pipe protruding from an outer side surface of the shield plate is held at the end cap penetration hole of the end cap body.

As a further preferable example of the pipe rehabilitating apparatus of the present invention, the expansion unit further includes two glue layers, wherein each of the glue layers is disposed between each end of the air bag and each of the shielding plates, respectively, to glue the shielding plates to the ends of the air bag by the glue layers.

As a further preferable example of the pipe rehabilitating apparatus of the present invention, one of the two protection plates has a guard plate holding hole, and one of the two end cap bodies has an end cap holding hole, wherein the end cap holding hole of the end cap body corresponds to the guard plate holding hole of the protection plate, and wherein the air charging nozzle protrudes outside the end cap body after sequentially penetrating the guard plate holding hole of the protection plate and the end cap holding hole of the end cap body.

As a further preferable example of the pipe rehabilitating apparatus of the present invention, each of the outer side surfaces of the shielding plates has a plurality of positioning protrusions, respectively, and each of the inner side surfaces of the end cap main body has a plurality of positioning grooves, respectively, wherein each of the positioning protrusions of the shielding plates is positioned at each of the positioning grooves of the end cap main body, respectively.

As a further preferable example of the pipe rehabilitating apparatus of the present invention, each of the outer side surfaces of the shielding plates has a plurality of positioning grooves, respectively, and each of the inner side surfaces of the end cap main body has a plurality of positioning protrusions, respectively, wherein each of the positioning protrusions of the end cap main body is positioned at each of the positioning grooves of the shielding plates, respectively.

As a further preferable example of the pipe rehabilitating apparatus of the present invention, the end cap body and the shield plate are screwed with a plurality of screws therebetween.

As a further preferable example of the pipe rehabilitating apparatus of the present invention, the end cap body and the shielding plate are screwed by a plurality of screws, and the screwed position of the shielding plate is the positioning protrusion.

As a further preferable example of the pipe repair device of the present invention, the pipe repair device further includes a plurality of pull rings, each of which is provided on an outer side surface of one of the end cap bodies at a distance from each other.

As a further preferable example of the pipe rehabilitating apparatus of the present invention, one end of the connecting pipe has a positioning ring, and one end cap body has a positioning cavity communicating with the end cap penetration hole, wherein the positioning ring of the connecting pipe is positioned in the positioning cavity of the end cap body.

Compared with the existing mode of repairing the leakage position of the pipeline, the pipeline repairing device has the advantages that: the pipeline repairing device can repair the leakage position of the pipeline in the pipeline, so that the pipeline repairing efficiency can be effectively improved, and the pipeline repairing cost can be effectively reduced. The size of the balloon of the expansion unit of the pipeline rehabilitation device can be changed, wherein the balloon can be inflated to expand to allow the outer wall of the balloon to be adhered to the inner wall of the pipeline when the pipeline rehabilitation device is moved in the pipeline to a leakage position where the balloon corresponds to the pipeline, so that the rehabilitation material attached to the balloon can be transferred to the inner wall of the pipeline to rehabilitate the pipeline in a manner that allows the rehabilitation material to cover the leakage position of the pipeline. The air bag of the pipeline repairing device can be replaced, so that when the air bag is damaged, the pipeline repairing device can be continuously used in a mode of replacing the air bag.

Further advantages and in particular of the pipe rehabilitation device according to the utility model will be disclosed in the following description.

Drawings

Fig. 1A and 1B are perspective views of a balloon-replaceable pipeline rehabilitation device according to a preferred embodiment of the present invention from different perspectives.

Fig. 2A and 2B are exploded views of the pipe rehabilitation device according to the above preferred embodiment of the present invention from different perspectives.

Fig. 3 is a schematic sectional view of the pipe rehabilitating apparatus according to the above preferred embodiment of the present invention.

Fig. 4A and 4B are enlarged schematic views of different partial positions of fig. 3, respectively.

Fig. 5A is a schematic view showing a state of use of the pipe rehabilitating apparatus according to the above preferred embodiment of the present invention.

Fig. 5B is a schematic view illustrating another use state of the pipe rehabilitating apparatus according to the above preferred embodiment of the present invention.

Fig. 5C is a schematic view showing still another state of use of the pipe rehabilitating apparatus according to the above preferred embodiment of the present invention.

Detailed Description

The following description is presented to disclose the utility model so as to enable any person skilled in the art to practice the utility model. The preferred embodiments in the following description are given by way of example only, and other obvious variations will occur to those skilled in the art. The basic principles of the utility model, as defined in the following description, may be applied to other embodiments, variations, modifications, equivalents, and other technical solutions without departing from the spirit and scope of the utility model.

It will be understood by those skilled in the art that in the present disclosure, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship indicated in the drawings for ease of description and simplicity of description, and do not indicate or imply that the referenced devices or components must be constructed and operated in a particular orientation and thus are not to be considered limiting.

It is understood that the terms "a" and "an" should be interpreted as meaning that a number of one element or element is one in one embodiment, while a number of other elements is one in another embodiment, and the terms "a" and "an" should not be interpreted as limiting the number.

Referring to fig. 1 to 5C of the drawings accompanying the present specification, a replaceable bladder pipe repair apparatus 100 (hereinafter referred to as a pipe repair apparatus 100) according to a preferred embodiment of the present invention for repairing a leak site 201 of a pipe 200 inside the pipe 200 will be disclosed and explained in the following description. It is understood that the leak site 201 of the pipe 200 is a site where the inner wall of the pipe 200 is thinned in its wall thickness dimension due to corrosion, and the wall thickness of the pipe 200 at the leak site 201 can be increased by attaching a repair material 300 to the inner wall of the pipe 200 and covering the leak site 201, thereby achieving repair of the pipe 200.

Specifically, the pipe rehabilitating apparatus 100 includes one connecting pipe 10, one expansion unit 20, and two end cap units 30.

The connection pipe 10 has a drain passage 11 penetrating opposite ends of the connection pipe 10.

The expansion unit 20 includes an air bag 21, an air charging nozzle 22, and two protection plates 23. The inflator 22 is provided to the airbag 21 for inflating and deflating the airbag 21, wherein when the airbag 21 is inflated by the inflator 22, the airbag 21 is expanded to increase its size, and correspondingly, when the airbag 21 is deflated by the inflator 22, the airbag 21 is contracted to decrease its size. Two of the shielding plates 23 are respectively provided at opposite ends of the airbag 21 for protecting the end of the airbag 21.

The expansion unit 20 has a fitting penetration hole 24, wherein the fitting penetration hole 24 extends from one of the shielding plates 23 to the other shielding plate 23, and an opening 2 is formed at each of the shielding plates 23, respectively. The connection pipe 10 is detachably mounted to the fitting penetration hole 24 of the expansion unit 20, and after the connection pipe 10 is mounted to the fitting penetration hole 24 of the expansion unit 20, the connection pipe 10 and the expansion unit 20 are integrated, and each end of the connection pipe 10 protrudes from the outer side of each of the shield plates 23, respectively.

Each of the end cap units 30 includes an end cap body 31, a plurality of adjustment wheels 32, and a plurality of elastic members 33, respectively. The end cap body 31 has one end cap penetration hole 311 and a plurality of adjustment grooves 312, the end cap penetration hole 311 penetrates through opposite sides of the end cap body 31, and the adjustment grooves 312 extend from a peripheral wall 313 of the end cap body 31 toward a central position at intervals. Each of the adjustment wheels 32 includes a wheel arm 321 and a roller 322 rotatably mounted to one end of the wheel arm 321, the other end of the wheel arm 321 of each of the adjustment wheels 32 is adjustably mounted to each of the adjustment grooves 312 of the end cover main body 31, and the elastic member 33 is disposed between the end cover main body 31 and the wheel arm 321 in such a manner as to be located in the adjustment groove 312 of the end cover main body 31. Preferably, the elastic member 33 is a compression spring member, when the roller 322 of the adjusting wheel 32 is pressed to slide the wheel arm 321 of the adjusting wheel 32 along the adjusting groove 312 of the end cap body 31 in the direction of the central position of the end cap body 31, the wheel arm 321 of the adjusting wheel 32 presses the elastic member 33 to accumulate elastic potential energy in the elastic member 33, and at this time, the elastic member 33 has a tendency to make the wheel arm 321 of the adjusting wheel 32 move away from the direction of the central position of the end cap body 31 along the adjusting groove 312 of the end cap body 31.

The cap main body 31 is detachably mounted to the shielding plate 23, and the portion of the connection pipe 10 protruding from the outer side surface of the shielding plate 23 is held at the cap penetration hole 311 of the cap main body 31, so that the pipe repair device 100 is integrated into a unitary structure. When the airbag 21 of the expansion unit 20 is broken, the replacement of the airbag 21 is completed by first detaching the cap body 31 from the shielding plate 23, then detaching the connection pipe 10 from the fitting through-hole 24 of the expansion unit 20, then attaching the connection pipe 10 to the fitting through-hole 24 of a new expansion unit 20, and attaching the cap body 31 to the shielding plate 23.

It is understood that, when the air bag 21 is broken, the air bag 21 and the shielding plate 23 are replaced at the same time, that is, the shielding plate 23 is fixedly provided to the end of the air bag 21. Specifically, the expansion unit 20 further includes two glue layers 26, each of the glue layers 26 being respectively disposed between each end of the airbag 21 and each of the protection plates 23 to glue the protection plates 23 to the ends of the airbag 21 by the glue layers 26.

Further, one of the two protection plates 23, the protection plate 23 has a guard plate holding hole 231, one of the two end cap bodies 31, the end cap body 31 has an end cap holding hole 314, wherein the end cap holding hole 314 of the end cap body 31 corresponds to the guard plate holding hole 231 of the protection plate 23, and wherein the air charging nozzle 22 protrudes from the outer side of the end cap body 31 after sequentially penetrating the guard plate holding hole 231 of the protection plate 23 and the end cap holding hole 314 of the end cap body 31.

As shown in fig. 2A and 2B, each of the outer side surfaces of the protection plates 23 has a plurality of positioning protrusions 232, and each of the inner side surfaces of the end cap main bodies 31 has a plurality of positioning grooves 315, wherein each of the positioning protrusions 232 of the protection plates 23 is positioned in each of the positioning grooves 315 of the end cap main bodies 31, so that on one hand, the positioning protrusions 232 of the protection plates 23 and the positioning grooves 315 of the end cap main bodies 31 are matched with each other to install the protection plates 23 and the end cap main bodies 31 in alignment, and on the other hand, when the pipeline repairing device 100 is used for repairing the pipeline 200, mutual rotation between the protection plates 23 and the end cap main bodies 31 can be avoided. Alternatively, in other examples of the pipe repair device 100, the positioning groove 315 may be provided to the shielding plate 23, and accordingly, the positioning protrusion 232 may be provided to the end cap main body 31.

Preferably, the end cover main body 31 and the shielding plate 23 may be screwed by a plurality of screws 50, so that the end cover main body 31 and the shielding plate 23 are detachable, and a stable and reliable assembling relationship between the end cover main body 31 and the shielding plate 23 is ensured. More preferably, the screwed position of the shielding plate 23 is the positioning projection 232, so that it is advantageous to reduce the thickness dimension of the shielding plate 23.

As shown in fig. 1A to 5C, the pipe repair apparatus 100 further includes a plurality of pull rings 60, each of the pull rings 60 is disposed on an outer side surface of one of the end cap bodies 31 at intervals, wherein the pull rings 60 are used for fixing one rope 500.

As shown in fig. 3, one end of the connecting tube 10 has a positioning ring 12, and one end cap body 31 has a positioning cavity 316, the positioning cavity 316 is communicated with the end cap through hole 311, wherein the positioning ring 12 of the connecting tube 10 is positioned in the positioning cavity 316 of the end cap body 31 to avoid the problem of misalignment between the connecting tube 10 and the end cap body 31. Preferably, the size and shape of the positioning ring 12 of the connecting tube 10 matches the size and shape of the positioning cavity 316 of the end cap body 31.

Fig. 5A to 5C illustrate the repair of the leak site 201 of the pipe 200 by the pipe repair device 100. Specifically, first, the repair material 300 is attached to the outer wall of the balloon 21 of the pipe repair apparatus 100; secondly, the pipe repairing apparatus 100 is placed inside the pipe 200, at which time the balloon 21 does not contact the inner wall of the pipe 200 due to its small size; thirdly, the pipe repair device 100 is allowed to move in the pipe 200 by pulling the pipe repair device 100 through the rope 500, and when the pipe repair device 100 moves to the position where the repair material 300 corresponds to the leakage position 201 of the pipe 200, the pipe repair device 100 stops being pulled continuously; then, the air bag 21 is inflated by an air tube 400 connected to the inflating nozzle 22 to increase the size of the air bag 21 due to expansion, and during the inflation, the outer wall of the air bag 21 is gradually close to the inner wall of the pipeline 200 until the repair material 300 adheres to the inner wall of the pipeline 200 to repair the leakage position 201 of the pipeline 200 in such a way that the repair material 300 increases the thickness of the leakage position 201 of the pipeline 200; after the repair material 300 is transferred from the outer wall of the balloon 21 of the pipe repair apparatus 100 to the inner wall of the pipe 200, the balloon 21 is deflated through the air tube 400 to contract the inflatable body 21 to reduce its size, and at this time, the pipe repair apparatus 100 can be moved out of the pipe 200 by continuing to pull the pipe repair apparatus 100 through the rope 500.

It is worth mentioning that when the pipe rehabilitating apparatus 100 is placed inside the pipe 200, the respective rollers 322 of the respective regulating wheels 32 of the end cap unit 30 of the pipe rehabilitating apparatus 100 directly contact the inner wall of the pipe 200, and the wheel arms 321 of the regulating wheels 32 press the elastic members 33 implemented as compression springs to automatically adjust the distance between the rollers 322 of the regulating wheels 32 and the peripheral wall 313 of the end cap body 31 by the elastic members 33, in such a manner that the pipe rehabilitating apparatus 100 can be adapted to the pipes 200 of different inner diameters.

It is also worth mentioning that if there is a flow in the pipe 200, when the pipe repairing apparatus 100 is pulled by the rope 500 to move inside the pipe 200, the fluid can sequentially pass through the end cap penetration hole 311 of one end cap body 31, the drainage channel 11 of the connection pipe 10, and the end cap penetration hole 311 of the other end cap body 31 to reduce the resistance.

It will be appreciated by persons skilled in the art that the above embodiments are only examples, wherein features of different embodiments may be combined with each other to obtain embodiments which are easily conceivable in accordance with the disclosure of the utility model, but which are not explicitly indicated in the drawings.

It will be appreciated by persons skilled in the art that the embodiments of the utility model described above and shown in the drawings are given by way of example only and are not limiting of the utility model. The objects of the utility model have been fully and effectively accomplished. The functional and structural principles of the present invention have been shown and described in the examples, and any variations or modifications of the embodiments of the present invention may be made without departing from the principles.

Claims

1. A balloon-replaceable pipeline rehabilitation device, comprising:

a connecting pipe, wherein the connecting pipe has a drain passage;

2. The apparatus of claim 1, wherein the expansion unit further comprises two glue layers, wherein each of the glue layers is disposed between each of the ends of the airbag and each of the protection plates, respectively, to glue the protection plates to the ends of the airbag by the glue layers.

3. The apparatus of claim 2, wherein one of said two said protection plates has a protection plate holding hole, one of said two said end cap bodies has an end cap holding hole, wherein said end cap holding hole of said end cap body corresponds to said protection plate holding hole of said protection plate, and wherein said air nozzle protrudes from an outer side surface of said end cap body after sequentially penetrating said protection plate holding hole of said protection plate and said end cap holding hole of said end cap body.

4. The apparatus of claim 1, wherein each of said shield plates has a plurality of locating protrusions on an outer side thereof and a plurality of locating recesses on an inner side thereof, wherein each of said locating protrusions of said shield plates is located in each of said locating recesses of said end cap body.

5. The apparatus of claim 1, wherein each of said shield plates has a plurality of detents on an outer surface thereof, and each of said end cap bodies has a plurality of detents on an inner surface thereof, wherein each of said detents of said end cap bodies is positioned in each of said detents of said shield plates.

6. The apparatus of claim 1, wherein the end cap body and the shield plate are threadably engaged by a plurality of screws.

7. The apparatus of claim 4, wherein the end cap body is screwed to the protection plate by a plurality of screws, and the position of the protection plate to be screwed is the positioning protrusion.

8. The apparatus of any one of claims 1 to 7, further comprising a plurality of tabs, each tab being spaced from one another on an outer side of one of the end cap bodies.

9. An apparatus as claimed in any one of claims 1 to 7, wherein said connecting tube has a locating ring at one end thereof, and said end cap body has a locating cavity therein communicating with said end cap bore, wherein said locating ring of said connecting tube is located in said locating cavity of said end cap body.

10. The apparatus of claim 8, wherein said connecting tube has a positioning ring at one end and said end cap body has a positioning cavity, said positioning cavity communicating with said end cap bore, wherein said positioning ring of said connecting tube is positioned in said positioning cavity of said end cap body.