CN113357476A - Method and device for inserting an airbag into a duct - Google Patents
Method and device for inserting an airbag into a duct Download PDFInfo
- Publication number
- CN113357476A CN113357476A CN202110721639.9A CN202110721639A CN113357476A CN 113357476 A CN113357476 A CN 113357476A CN 202110721639 A CN202110721639 A CN 202110721639A CN 113357476 A CN113357476 A CN 113357476A
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- Prior art keywords
- uninflated
- air bag
- inflated
- air
- airbag
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/10—Means for stopping flow from or in pipes or hoses
- F16L55/12—Means for stopping flow from or in pipes or hoses by introducing into the pipe a member expandable in situ
- F16L55/128—Means for stopping flow from or in pipes or hoses by introducing into the pipe a member expandable in situ introduced axially into the pipe or hose
Abstract
The invention relates to the technical field of construction engineering, in particular to a method and a device for penetrating an air bag into a pipeline. The method of threading a balloon into a conduit comprises the steps of: providing a housing having an outlet duct section and an air inlet; placing the uninflated airbag into the shell, wherein one end of the uninflated airbag is a closed end, the other end of the uninflated airbag is an open end, and the open end extends out of the outlet pipe section; the open end is turned outwards to form a turning section, and the turning section is fixedly sleeved outside the outlet pipe section; aligning the outlet tube section with the pipeline, inflating the inner cavity of the shell through the air inlet, and enabling the inflated air to enter between the outer surface of the uninflated air bag and the inner surface of the outlet tube section so as to push the uninflated air bag into the pipeline to form an inflated air bag, wherein the outer surface of the inflated air bag is the inner surface of the uninflated air bag; when the inflated balloon reaches the target position, the open end is closed. The air bag is pushed into the pipeline while being inflated by air pressure, so that labor is saved.
Description
Technical Field
The invention relates to the technical field of construction engineering, in particular to a method and a device for penetrating an air bag into a pipeline.
Background
In the process of constructing the pipeline by adopting the air bag, the air bag needs to penetrate into the pipeline firstly. For example, before concrete is poured into the precast beam slab, the air bag is inserted into the prestressed metal bellows, the air bag is inflated to make the circumferential outer surface of the air bag closely contact with the inner wall of the bellows, and the air pressure in the air bag is higher than the impact force caused by the concrete and the vibration thereof. And when the concrete pouring is finished and the tensile strength is reached, deflating the air bag and drawing out the air bag. For another example, when a pipeline is repaired, the air bag is required to be inflated and expanded to attach the repairing material to the position to be repaired, and the air bag is expanded to apply pressure to the repairing material, so that the material is attached to the pipeline more tightly and is not easy to fall off, and the repairing process is completed.
Because the air bag is made of flexible materials, the air bag is difficult to penetrate into a large-span pipeline (such as a prestressed metal corrugated pipe and a pipeline to be repaired), and is time-consuming and labor-consuming.
Disclosure of Invention
The invention aims to provide a method and a device for penetrating an air bag into a pipeline, so as to solve the technical problems of time and labor waste caused by difficulty in penetrating an uninflated air bag into a large-span pipeline in the prior art.
In view of the above object, the present invention provides a method of threading a balloon into a conduit, the method comprising the steps of:
providing a housing having an outlet duct section and an air inlet;
placing an uninflated airbag into the housing, wherein one end of the uninflated airbag is a closed end, and the other end of the uninflated airbag is an open end, and the open end extends out of the outlet pipe section;
the open end of the uninflated air bag is turned outwards to form a turning section, and the turning section is fixedly sleeved outside the outlet pipe section;
aligning the outlet pipe section with a pipeline to be treated, inflating the inner cavity of the shell through the air inlet, and enabling inflating gas to enter between the outer surface of the uninflated air bag and the inner surface of the outlet pipe section so as to push the uninflated air bag into the pipeline to form an inflated air bag, wherein the outer surface of the inflated air bag is attached to the inner wall of the pipeline;
when the inflated airbag reaches the target position, the open end is closed.
Optionally, before the uninflated airbag is installed into the housing, a step of calculating a required length of the uninflated airbag is further included.
Optionally, before the uninflated airbag is installed in the housing, the step of winding the uninflated airbag into a roll is further included.
Optionally, the method further comprises the step of adjusting the air pressure in the inflated airbag during inflation of the inner cavity of the housing through the air inlet.
Optionally, after closing the open end, the step of separating the inflated balloon from the outlet tube section is further included.
Based on the above purpose, the present invention also provides a device for threading an airbag into a pipeline, comprising a housing, wherein the housing is provided with an outlet pipe section and an air inlet, and the outlet pipe section and the air inlet are both communicated with the inner space of the housing.
Optionally, a rotating shaft is arranged inside the shell, and the rotating shaft is used for winding the uninflated air bag.
Optionally, the device for penetrating the airbag into the pipeline further comprises a hand wheel, the hand wheel is located outside the shell, and the hand wheel is connected with the rotating shaft.
Optionally, the casing includes a box body and a cover plate, the cover plate is detachably covered on the opening of the box body, and a sealing member is arranged between the cover plate and the box body.
Optionally, the cover plate is provided with a see-through window.
Optionally, the means for threading the air bag into the duct further comprises a frame, the housing being mounted on the frame.
Compared with the prior art, the invention has the following beneficial effects:
when the method for penetrating the airbag into the pipeline is adopted, the uninflated airbag is arranged in the shell, the open end of the uninflated airbag extends out of the outlet pipe section of the shell, the open end of the uninflated airbag is turned outwards to form a turning section, the turning section is sleeved outside the outlet pipe section and is fixed outside the outlet pipe section, and the fact that no air exists between the turning section and the outlet pipe section is guaranteed; aligning the outlet pipe section sleeved with the turnover section with a pipeline to be processed, inflating the inner cavity of the shell through the air inlet, enabling inflated gas to enter between the outer surface of the uninflated airbag and the inner surface of the outlet pipe section, enabling the uninflated airbag to be overturned under the action of gas pressure to prop into the pipeline, forming an inflated airbag in the pipeline, and enabling the outer surface of the inflated airbag to be attached to the inner wall of the pipeline, wherein the outer surface of the inflated airbag is the inner surface of the uninflated airbag; when the inflated air bag reaches the target position, the open end is closed, and the inflation is stopped. Because the method is to push the air bag into the pipeline while inflating the air bag by air pressure, the method is labor-saving, and the air bag can be conveniently penetrated into the pipeline even if the pipeline is a large-span pipeline, thereby improving the construction efficiency.
The device for penetrating the air bag into the pipeline comprises a shell, wherein the shell is provided with an outlet pipe section and an air inlet, and the outlet pipe section and the air inlet are both communicated with the inner space of the shell. When the folding type air bag is used, the air inlet is communicated with an external air source, the uninflated air bag is arranged in the shell, the open end of the uninflated air bag extends out of the outlet pipe section of the shell, the open end of the uninflated air bag is folded outwards to form a folding section, the folding section is sleeved outside the outlet pipe section and fixed outside the outlet pipe section, and air leakage between the folding section and the outlet pipe section is guaranteed; aligning the outlet pipe section sleeved with the turnover section with a pipeline to be processed, inflating the inner cavity of the shell through the air inlet, enabling inflated gas to enter between the outer surface of the uninflated airbag and the inner surface of the outlet pipe section, enabling the uninflated airbag to be overturned under the action of gas pressure to prop into the pipeline, forming an inflated airbag in the pipeline, and enabling the outer surface of the inflated airbag to be attached to the inner wall of the pipeline, wherein the outer surface of the inflated airbag is the inner surface of the uninflated airbag; when the inflated air bag reaches the target position, the open end is closed, and the inflation is stopped. The whole process is time-saving and labor-saving.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a schematic structural diagram of an apparatus for inserting a balloon into a conduit according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of an alternative view of an apparatus for inserting a balloon into a conduit according to an embodiment of the present invention;
FIG. 3 is a cross-sectional view of an apparatus for inserting a balloon into a conduit according to an embodiment of the present invention;
FIG. 4 is a schematic view of an uninflated balloon wound on a spool in a method of threading a balloon into a conduit according to an embodiment of the present invention;
FIG. 5 is a schematic view of an uninflated air bag extending from an outlet tube section of a housing in a method of threading the air bag into a conduit according to an embodiment of the present invention;
FIG. 6 is a schematic view of an uninflated balloon folded outwardly at its open end to form a folded section in a method of threading the balloon into a conduit according to an embodiment of the present invention;
FIG. 7 is a schematic view of a folded-over section secured to the exterior of an outlet tube section in a method of inserting a balloon into a tube according to an embodiment of the present invention;
FIG. 8 is a schematic view of an uninflated balloon being everted under gas pressure into a tube in a method of threading a balloon into a tube according to an embodiment of the present invention;
figure 9 is a schematic illustration of a method of threading a balloon into a conduit to form an inflated balloon in the conduit according to an embodiment of the present invention (with the conduit partially in section).
Icon: 100-uninflated balloon; 100' -an inflated balloon; 200-a pipeline; 101-an outlet pipe section; 1011-bending section; 1012-straight pipe section; 102-an air inlet; 103-a housing; 1031-box body; 1032-cover plate; 104-open end; 105-a turnover section; 106-anchor ear; 107-rotating shaft; 108-a hand wheel; 109-a baffle; 110-a via; 111-a seal; 112-a rack; 113-universal wheels; 114-pressure gauge.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that, as the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. appear, their indicated orientations or positional relationships are based on those shown in the drawings only for the convenience of describing the present invention and simplifying the description, but not for indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" as appearing herein are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" should be interpreted broadly, e.g., as being fixed or detachable 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 meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1 to 9, the present embodiment provides a method of threading a balloon into a tube, comprising the steps of:
s1, providing a shell 103 with an outlet pipe section 101 and an air inlet 102;
s2, placing the uninflated airbag 100 into a shell 103, wherein one end of the uninflated airbag 100 is a closed end, the other end of the uninflated airbag 100 is an open end 104, and the open end 104 extends out of an outlet pipe section 101;
s3, the open end 104 of the uninflated air bag 100 is turned outwards to form a turning section 105, and the turning section 105 is fixedly sleeved outside the outlet pipe section 101;
s4, aligning the outlet pipe section 101 with the pipeline 200 to be processed, inflating the inner cavity of the shell 103 through the air inlet 102, and enabling the inflated gas to enter between the outer surface of the uninflated airbag 100 and the inner surface of the outlet pipe section 101 so as to push the uninflated airbag 100 into the pipeline 200 to form an inflated airbag 100', wherein the outer surface of the inflated airbag 100' is attached to the inner wall of the pipeline 200, and the outer surface of the inflated airbag 100' is the inner surface of the uninflated airbag 100;
s5. when the inflated airbag 100' reaches the target position, the open end 104 is closed.
When the method for inserting an airbag into a pipeline provided by the embodiment is adopted, the uninflated airbag 100 is installed into the shell 103, as shown in fig. 5, the open end 104 of the uninflated airbag 100 extends out of the outlet pipe section 101 of the shell 103, then, as shown in fig. 6, the open end 104 of the uninflated airbag 100 is turned outwards to form a turned section 105, as shown in fig. 7, the turned section 105 is sleeved outside the outlet pipe section 101, and the turned section 105 is fixed outside the outlet pipe section 101 by using the hoop 106, so that air does not leak between the turned section 105 and the outlet pipe section 101; aligning the outlet pipe section 101 provided with the folded section 105 with the pipe 200 to be treated, inflating the inner cavity of the housing 103 through the air inlet 102, and allowing the inflating gas to enter between the outer surface of the uninflated airbag 100 and the inner surface of the outlet pipe section 101. referring to fig. 8 and 9, the uninflated airbag 100 is pushed into the pipe 200 by being turned over under the action of the gas pressure, and an inflated airbag 100' is formed in the pipe 200, and the outer surface of the inflated airbag 100' is attached to the inner wall of the pipe 200, wherein the outer surface of the inflated airbag 100' is the inner surface of the uninflated airbag 100; when the inflated airbag 100' reaches the target position, the open end 104 is closed and the inflation is stopped. Because the method is to push the air bag into the pipeline 200 while inflating the air bag by air pressure, the method is labor-saving, and the air bag can be conveniently penetrated into the large-span pipeline 200, thereby improving the construction efficiency.
Optionally, before installing the uninflated airbag 100 into the housing 103, a step of calculating a required length of the uninflated airbag 100 is further included.
Normally, the required length of the uninflated airbag 100 is calculated in advance according to the actual construction situation, and when the uninflated airbag 100 in the housing 103 is fully pushed into the pipeline 200, the inflated airbag 100' reaches the target position.
For example, before the precast beam slab is concreted, the length of the required uninflated airbag 100 is calculated from the length of the prestressed metal bellows, and when the uninflated airbag 100 in the housing 103 is fully pushed into the prestressed metal bellows, the inflated airbag 100' reaches the target position.
Optionally, before the uninflated airbag 100 is installed into the housing 103, the step of winding the uninflated airbag 100 into a roll is further included.
Specifically, the uninflated bladder 100 may employ a flexible hose, such as a rubber hose. One end of the rubber hose is hooped by a hoop to form a closed end. After the uninflated air bag 100 is wound into a roll, the uninflated air bag 100 can be conveniently turned out of the outlet pipe section 101 under the action of air pressure, and the air bag can be conveniently inflated, so that the situation that the uninflated air bag 100 is disorderly stacked in the shell 103 and has a plurality of bent and overlapped positions which are not beneficial to inflation and cause the speed of turning the air bag out of the outlet pipe section 101 to be reduced is avoided.
Alternatively, as shown in FIG. 4, the uninflated bladder 100 is wound around a spool 107.
Optionally, the step of adjusting the air pressure in the inflated airbag 100' is also included during inflation of the interior of the housing 103 through the air inlet 102.
Specifically, the present embodiment may employ an air compressor to inflate the interior of the housing 103, and adjust the air pressure in the inflated airbag 100 'by adjusting the intake pressure of the air compressor, so that the outer surface of the inflated airbag 100' can be closely attached to the inner wall of the duct 200.
Optionally, after closing open end 104, there is the step of separating inflated balloon 100' from outlet tube section 101.
Specifically, the open end 104 may be closed by a clamp, and after closing, the clamp 106 for securing the folded section 105 and the outlet tube section 101 may be removed to separate the inflated airbag 100' from the outlet tube section 101.
Referring to fig. 1 to 3, the present embodiment further provides a device for threading an airbag into a pipeline, comprising a housing 103, wherein the housing 103 is provided with an outlet pipe section 101 and an air inlet 102, and the outlet pipe section 101 and the air inlet 102 are both communicated with the inner space of the housing 103.
The device for penetrating the airbag into the pipeline provided by the embodiment of the invention can be applied to the method for penetrating the airbag into the pipeline provided by the embodiment of the invention.
When the air bag is used, the air inlet 102 is communicated with an external air source, the uninflated air bag 100 is arranged in the shell 103, the open end 104 of the uninflated air bag 100 extends out of the outlet pipe section 101 of the shell 103, the open end 104 of the uninflated air bag 100 is turned outwards to form a turning section 105, the turning section 105 is sleeved outside the outlet pipe section 101, the turning section 105 is fixed outside the outlet pipe section 101, and air leakage between the turning section 105 and the outlet pipe section 101 is guaranteed; aligning the outlet pipe section 101 provided with the turnover section 105 with the pipeline 200 to be processed, inflating the inner cavity of the shell 103 through the air inlet 102, enabling the inflated gas to enter between the outer surface of the uninflated airbag 100 and the inner surface of the outlet pipe section 101, enabling the uninflated airbag 100 to be overturned under the action of the gas pressure to be pushed into the pipeline 200, and forming an inflated airbag 100' in the pipeline 200, wherein the outer surface of the inflated airbag 100' is attached to the inner wall of the pipeline 200, and the outer surface of the inflated airbag 100' is the inner surface of the uninflated airbag 100; when the inflated airbag 100' reaches the target position, the open end 104 is closed and the inflation is stopped. The whole process is time-saving and labor-saving.
Optionally, the inner cavity of the housing 103 includes a hollow cylindrical section inner cavity and a tapered section inner cavity, the tapered section inner cavity is connected between the hollow cylindrical section inner cavity and the outlet pipe section 101, and the cross-sectional area of the tapered section is gradually reduced from the end where the tapered section is connected with the hollow cylindrical section inner cavity to the end where the tapered section is connected with the outlet pipe section 101, so as to increase the gas flow rate at the outlet pipe section 101 and improve the air bag ejection efficiency.
Optionally, a rotating shaft 107 is disposed inside the housing 103, and the rotating shaft 107 is used for winding the uninflated airbag 100.
Optionally, a rotating shaft 107 is hinged to the housing 103, and the axis of the rotating shaft 107 is substantially perpendicular to the outlet direction of the outlet pipe section 101, so that the uninflated airbag 100 can smoothly enter the outlet pipe section 101 and protrude from the outlet pipe section 101.
Optionally, the outlet pipe section 101 includes a bent section 1011 and a straight pipe section 1012 which are communicated with each other, the bent section 1011 is connected with the housing 103 and is communicated with the inner cavity of the housing 103, and the folded section 105 is sleeved outside the free end of the straight pipe section 1012.
In this embodiment, the bent section 1011 is a flexible tube to conform to the curved shape of the uninflated airbag 100, and the straight section 1012 is a rigid tube, such as a rigid metal tube or a plastic tube, to fit closely with the bent section 105 to prevent air leakage. Optionally, the bent sections 1011 and the straight sections 1012 are secured together by pipe joints.
It should be noted that the outlet pipe section 101 is not limited to the above structure. For example, the bent section 1011 and the straight section 1012 may be integrally formed.
Optionally, the elbow 1011 is removably attached to the housing 103 in a manner that facilitates pulling the open end 104 of the uninflated airbag 100 out of the housing 103, and then also facilitates passing the uninflated airbag 100 through the outlet tube section 101.
Optionally, baffles 109 are provided at both ends of the rotation shaft 107 to prevent the uninflated airbag 100 from coming off the rotation shaft 107.
Optionally, the flap 109 is provided with a through-hole 110, which on the one hand enables a reduction in weight and on the other hand enables gas to pass through the flap 109, and furthermore, through the through-hole 110, the remaining amount of the uninflated airbag 100 on the spindle 107 can be observed.
Alternatively, the baffle 109 is circular, the number of the through holes 110 is four, and the four through holes 110 are uniformly spaced along the circumferential direction of the baffle 109.
In one possible design, the means for threading the air bag into the duct further comprises a handwheel 108, the handwheel 108 being located outside the housing 103, and the handwheel 108 being connected to the shaft 107.
In this possible design, the shaft 107 is fixedly connected to the handwheel 108. The housing 103 is provided with an airbag inlet, the closed end of the uninflated airbag 100 is fed into the housing 103 from the airbag inlet and wound on the rotating shaft 107, and the rotating wheel 108 is rotated to drive the rotating shaft 107 to rotate, so that the uninflated airbag 100 can be wound on the rotating shaft 107 to form a roll shape.
Optionally, a pulling rope is disposed on the rotating shaft 107, one end of the pulling rope is fixed on the outer circumferential surface of the rotating shaft 107, and optionally, the pulling rope is located at a middle position in the length direction of the rotating shaft 107. When the uninflated airbag 100 needs to be wound on the rotating shaft 107, the other end of the pulling rope can be fixed at the closed end of the uninflated airbag 100, for example, the other end of the pulling rope is tied to the closed end of the uninflated airbag 100 through a hoop, and then the pulling rope and the uninflated airbag 100 can be wound on the rotating shaft 107 by rotating the hand wheel 108, so that the operation is convenient and fast.
In another possible design, the housing 103 includes a box 1031 and a cover plate 1032, the cover plate 1032 is detachably disposed on the opening of the box 1031, and a sealing member 111 is disposed between the cover plate 1032 and the box 1031.
In another possible design, the flap 109 adjacent to the cover plate 1032 is detachably connected to the rotation shaft 107, and in use, the cover and the flap 109 adjacent to the cover plate 1032 are detached, then the uninflated airbag 100 is wound around the rotation shaft 107, the open end 104 of the uninflated airbag 100 is pulled out of the housing 103, and then the flap 109 adjacent to the cover plate 1032 and the cover are installed, and since the sealing member 111 is arranged between the cover plate 1032 and the box body 1031, the sealing performance of the housing 103 can be ensured.
In another possible design, the rotating shaft 107 can be detachably connected to the box 1031, the rotating shaft 107 can be taken out of the box 1031, and the uninflated airbag 100 can be wound outside the housing 103, so that the operation is more convenient.
The rotation shaft 107 is coupled to the cartridge 1031 by a bearing, for example.
Optionally, the seal 111 is a gasket or seal.
Optionally, the cover plate 1032 is provided with a see-through window. The material of the perspective window can be glass.
It should be noted that the cover plate 1032 may not be provided with a transparent window, for example, the cover plate 1032 may be directly made of a steel plate.
In a third possible design, the housing 103 comprises a cartridge 1031 and a cover plate 1032, while a handwheel 108 is attached to the exterior of the cartridge 1031.
Optionally, the means for threading the air-bag into the duct further comprises a frame 112, the housing 103 being mounted on the frame 112.
The frame 112 includes a bottom frame and a vertical support frame, the bottom frame is fixedly connected with the vertical support frame, and the housing 103 is fixedly mounted on the vertical support frame.
Optionally, the bottom frame is provided with universal wheels 113 to facilitate movement.
Optionally, the housing 103 is provided with a pressure gauge 114 for indicating the pressure level.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. A method of threading a balloon into a conduit, the method comprising the steps of:
providing a housing having an outlet duct section and an air inlet;
placing an uninflated airbag into the housing, wherein one end of the uninflated airbag is a closed end, and the other end of the uninflated airbag is an open end, and the open end extends out of the outlet pipe section;
the open end of the uninflated air bag is turned outwards to form a turning section, and the turning section is fixedly sleeved outside the outlet pipe section;
aligning the outlet pipe section with a pipeline to be treated, inflating the inner cavity of the shell through the air inlet, and enabling inflating gas to enter between the outer surface of the uninflated air bag and the inner surface of the outlet pipe section so as to push the uninflated air bag into the pipeline to form an inflated air bag, wherein the outer surface of the inflated air bag is attached to the inner wall of the pipeline;
when the inflated airbag reaches the target position, the open end is closed.
2. A method of threading a balloon into a conduit according to claim 1, further comprising the step of calculating the required length of said uninflated balloon prior to installing said uninflated balloon into said housing.
3. A method of threading an air-bag into a conduit as claimed in claim 1 further comprising the step of winding the un-inflated air-bag into a roll prior to installing the un-inflated air-bag into the housing.
4. The method of threading a balloon into a conduit according to claim 1, further comprising the step of adjusting the air pressure within the inflated balloon during inflation of the interior cavity of the housing through the air inlet.
5. A method of threading a balloon into a conduit according to claim 1, further comprising the step of separating the inflated balloon from the outlet tube section after closing the open end.
6. The device for penetrating the air bag into the pipeline is characterized by comprising a shell, wherein the shell is provided with an outlet pipe section and an air inlet, and the outlet pipe section and the air inlet are communicated with the inner space of the shell.
7. A device for threading an air-bag into a conduit as claimed in claim 6 wherein the interior of the housing is provided with a pivot for winding the un-inflated air-bag.
8. The device for threading an air bag into a conduit as in claim 7, further comprising a hand wheel located on the exterior of the housing, the hand wheel being connected to the shaft.
9. An apparatus for threading an air bag into a conduit as defined in claim 6 wherein said housing includes a box and a cover removably covering an opening in said box, a seal being disposed between said cover and said box.
10. A device for threading a balloon into a conduit as claimed in claim 9 wherein said cover plate is provided with a see-through window.
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| CN202110721639.9A CN113357476A (en) | 2021-06-28 | 2021-06-28 | Method and device for inserting an airbag into a duct |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110721639.9A CN113357476A (en) | 2021-06-28 | 2021-06-28 | Method and device for inserting an airbag into a duct |
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| CN113357476A true CN113357476A (en) | 2021-09-07 |
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| CN202110721639.9A Pending CN113357476A (en) | 2021-06-28 | 2021-06-28 | Method and device for inserting an airbag into a duct |
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| CN112032463A (en) * | 2020-09-25 | 2020-12-04 | 浙江蓝清市政建设集团有限公司 | CIPP pipeline repairing device and repairing method thereof |
| CN112377723A (en) * | 2020-11-11 | 2021-02-19 | 张丽英 | Auxiliary walking device in pipeline robot |
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