Height-adjustable stainless steel quick lock repair air bag
By designing an adjustable-height stainless steel quick-lock repair airbag, and utilizing a lifting and adjusting mechanism to achieve a tight fit between the airbag and the defective part of the pipeline, the problem of fixed airbag height is solved, the scope of application is expanded and the repair efficiency is improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SUZHOU WULIN LANDSCAPE DEV CO LTD
- Filing Date
- 2025-06-04
- Publication Date
- 2026-04-10
AI Technical Summary
The existing airbags have a fixed height, which cannot adapt to pipe defects of different locations and sizes, thus limiting their applicability.
An adjustable-height stainless steel quick-lock repair airbag was designed. The height of the airbag can be adjusted through a lifting and adjusting mechanism, including components such as a supporting steel cylinder, airbag, drive wheel and threaded rod, to ensure a tight fit with the defective part of the pipeline.
This broadens the scope of application of airbag repair technology and improves the flexibility and efficiency of repair work.
Smart Images

Figure CN224107869U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to pipeline repair technical field, concretely is a stainless steel quick lock repair air bag of adjustable height. BACKGROUND
[0002] With the acceleration of urbanization and the aging of infrastructure, the maintenance and repair of underground pipeline system become more and more important, in water supply, drainage, gas pipeline system, pipeline defects such as cracks, leaks, corrosion and other problems frequently occur, these problems will lead to pipeline leakage, blockage and even damage, affect the normal operation of city and the quality of life of residents;
[0003] At present, the repair method for pipeline defects mainly includes excavation repair and trenchless repair. Excavation repair refers to the pipeline is dug out, and local or whole replacement is carried out, and this method has high cost, great influence and long cycle. And the trenchless repair technology has the advantages of no excavation, rapidness, economy, environmental protection and the like, so it has been widely popularized in practical application.
[0004] In the trenchless repair technology, air bag repair is a commonly used method, at present, the height of the air bag is fixed, cannot adapt to pipeline defects of different positions and sizes, limits its application range, therefore we put forward a stainless steel quick lock repair air bag of adjustable height to solve the above problems. UTILITY MODEL CONTENTS
[0005] In view of the defects of prior art, the utility model provides a stainless steel quick lock repair air bag of adjustable height, solves the problem that the height of the air bag is fixed at present, cannot adapt to pipeline defects of different positions and sizes, limits its application range.
[0006] In order to realize the above object, the utility model is realized through the following technical scheme: a stainless steel quick lock repair air bag of adjustable height, including support steel cylinder and air bag fixedly installed on the outside of the support steel cylinder, one end of the support steel cylinder is fixed with air cock, both ends of the support steel cylinder are provided with support frame;
[0007] The support frame is rotatably connected with the driving wheel arranged in symmetry through the rotating shaft.
[0008] The support steel cylinder is provided with the lifting adjusting mechanism for driving the support frame to adjust the height.
[0009] Preferably, the support steel cylinder is provided with the gas conveying channel corresponding to the air cock, and one end of the gas conveying channel is connected with the cavity formed by the support steel cylinder and the air bag.
[0010] Preferably, the lifting adjusting mechanism comprises a rectangular frame fixed at both ends of the support steel cylinder and a partition plate fixed inside the rectangular frame, and a threaded rod is rotatably connected to the partition plate through a bearing;
[0011] A first bevel gear is fixed at the top end of the threaded rod, the surface of the first bevel gear is engaged with a second bevel gear, a driving rod is fixed between the two groups of second bevel gears, a fixed plate is fixed inside the rectangular frame and rotatably connected to the driving rod through a bearing, a moving seat is fixed on the support, and the moving seat is threadedly connected to the surface of the threaded rod through a threaded hole.
[0012] Preferably, the bottom end of the threaded rod is rotatably connected to the rectangular frame through a bearing, and one end of the driving rod penetrates through one of the fixed plates and extends to the outside of the fixed plate.
[0013] Preferably, the outer dimension of the moving seat is in contact with the inner cavity side wall of the rectangular frame, so as to limit the movement of the moving seat.
[0014] Preferably, a scale line is arranged on the surface of the rectangular frame close to the moving seat.
[0015] Beneficial effects
[0016] The utility model provides a height -adjustable stainless steel quick lock repair air bag, has the following beneficial effects compared with prior art:
[0017] The height -adjustable stainless steel quick lock repair air bag can flexibly adjust the position of the air bag according to the inner diameter size of the pipeline, ensure that the air bag can be closely combined with the pipeline defect part, greatly widen the application scope of air bag repair technology, and improve the flexibility and efficiency of repair work. BRIEF DESCRIPTION OF DRAWINGS
[0018] Figure 1 It is overall structure schematic view of the utility model;
[0019] Figure 2 It is rectangular frame structure sectional view of the utility model;
[0020] Figure 3 It is overall structure plan view of the utility model.
[0021] In the drawing: 101, support steel cylinder;102, air cock;103, air bag;104, support;105, driving wheel;2, lifting adjusting mechanism;201, rectangular frame;202, partition plate;203, threaded rod;204, moving seat;205, first bevel gear;206, second bevel gear;207, driving rod;208, fixed plate. DETAILED DESCRIPTION
[0022] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.
[0023] As shown in the figure: Figure 1
[0024] A height-adjustable stainless steel quick-lock repair air bag, comprising a support steel cylinder 101 and an air bag 103 fixedly installed outside the support steel cylinder 101.
[0025] In the present embodiment: to solve the technical problems existing in the prior art, as disclosed in the background art above, "in the trenchless repair technology, the air bag 103 repair is a commonly used method, at present the height of the air bag 103 is fixed, which cannot adapt to different positions and sizes of pipeline defects, limiting its application range", in combination with use, this problem is obviously a real problem and is relatively difficult to solve.
[0026] Further:
[0027] As shown in the figure: Figures 1-3
[0028] In combination with the above content: one end of the support steel cylinder 101 is fixed with an air nozzle 102, both ends of the support steel cylinder 101 are provided with supports 104, a gas conveying passage corresponding to the air nozzle 102 is formed on the support steel cylinder 101, and one end of the gas conveying passage is in communication with a cavity formed by the support steel cylinder 101 and the air bag 103;
[0029] The support 104 is rotationally connected with driving wheels 105 arranged in symmetry through a rotating shaft;
[0030] Both ends of the support steel cylinder 101 are provided with a lifting adjusting mechanism 2 for driving the support 104 to adjust the height;
[0031] The lifting adjusting mechanism 2 comprises a rectangular frame 201 fixed at both ends of the support steel cylinder 101 and a partition plate 202 fixed inside the rectangular frame 201, and the partition plate 202 is rotationally connected with a threaded rod 203 through a bearing;
[0032] The top end of the threaded rod 203 is fixed with a first bevel gear 205, the surface of the first bevel gear 205 is engaged with a second bevel gear 206, two groups of second bevel gears 206 are fixed with a drive rod 207, the inside of the rectangular frame 201 is fixed with a fixed plate 208, the fixed plate 208 is rotatably connected with the drive rod 207 through a bearing, the support 104 is fixed with a moving seat 204, the moving seat 204 is threadedly connected on the surface of the threaded rod 203 through a threaded hole;
[0033] The bottom end of the threaded rod 203 is rotatably connected with the rectangular frame 201 through a bearing, one end of the drive rod 207 penetrates through one of the fixed plates 208 and extends to the outside of the fixed plate 208;
[0034] The outer dimension of the moving seat 204 is in contact with the inner cavity side wall of the rectangular frame 201, for moving limiting of the moving seat 204.
[0035] In the embodiment: the height-adjustable stainless steel quick-lock repair air bag, in use, first, the stainless steel quick-lock sleeve is arranged outside the air bag 103, it is confirmed that the size of the air bag 103 and the stainless steel quick-lock matches the pipeline to be repaired;
[0036] Then according to the different pipeline, the height of the air bag 103 is adjusted, the drive rod 207 is rotated, the second bevel gear 206 is driven to rotate, the second bevel gear 206 and the first bevel gear 205 are engaged, the first bevel gear 205 is driven to rotate, the fixed plate 208 is used for rotating support of the drive rod 207, the stability of the drive rod 207 rotation is realized;
[0037] Through the rotation of the first bevel gear 205, the threaded rod 203 can be rotated, the threaded rod 203 and the moving seat 204 are threadedly connected, and the surface of the moving seat 204 is in contact with the inner cavity side wall of the rectangular frame 201, so that the rotating limiting of the moving seat 204 is realized, so that the moving seat 204 can be driven to move up and down while the threaded rod 203 is rotated, the support 104 and the drive wheel 105 are synchronously moved by the moving seat 204, the height of the drive wheel 105 is adjusted, so that the drive wheel 105 falls on the inner wall of the pipeline, and the position height of the air bag 103 is adjusted at this time;
[0038] The scheme can flexibly adjust the position of the air bag 103 according to the inner diameter size of the pipeline, ensure that the air bag 103 can be closely combined with the defect part of the pipeline, greatly widen the application range of the air bag 103 repair technology, and improve the flexibility and efficiency of the repair work;
[0039] After the height adjustment of the air bag 103 is completed, the device is placed in the pipeline, the gas supply end of an external gas supply device (not shown in the figure) is connected with the gas nozzle 102, then the device is moved to the designated area of the pipeline by an external traction device, then the gas supply device is used for gas supply, so that the air bag 103 is continuously inflated, and the air bag 103 is uniformly inflated and firmly attached to the inner wall of the pipeline, when the air bag 103 is inflated to the appropriate size and attached to the inner wall of the pipeline, the locking mechanism (not shown in the figure) is activated, and the stainless steel quick lock (not shown in the figure) is locked on the inner wall of the pipeline, and the repair operation of the pipeline is realized.
[0040] Further more;
[0041] In an optional embodiment, the surface of the rectangular frame 201 is provided with a scale line near the position of the moving seat 204.
[0042] In the embodiment, the surface of the rectangular frame 201 is provided with a scale line, and when the up-down position of the moving seat 204 is adjusted, the up-down movement of the moving seat 204 can be observed by observing the scale line, thereby improving the movement adjustment accuracy of the air bag 103.
[0043] The working principle and use process of the adjustable height stainless steel quick lock repair air bag are as follows: in use, first, the stainless steel quick lock sleeve is arranged outside the air bag 103, and it is confirmed that the sizes of the air bag 103 and the stainless steel quick lock match the pipeline to be repaired; then, according to the different pipelines, the height of the air bag 103 is adjusted by rotating the driving rod 207, thereby driving the second bevel gear 206 to rotate, the second bevel gear 206 and the first bevel gear 205 are meshed and connected, thereby driving the first bevel gear 205 to rotate, the threaded rod 203 can be rotated through the rotation of the first bevel gear 205, the threaded rod 203 and the moving seat 204 are screw connected, and the surface of the moving seat 204 is in contact with the inner cavity side wall of the rectangular frame 201, so that the rotating position of the moving seat 204 can be limited, so that the moving seat 204 can be driven to move up and down while the threaded rod 203 is rotated, the bracket 104 and the driving wheel 105 are synchronously moved by the moving seat 204, the height of the driving wheel 105 is adjusted, so that the driving wheel 105 falls on the inner wall of the pipeline when the position height of the air bag 103 is adjusted.
[0044] Meanwhile, the contents not described in detail in the specification all belong to the prior art known by those skilled in the art.
Claims
1. An adjustable height stainless steel quick lock repair air bag, comprising a supporting steel cylinder (101) and an air bag (103) fixedly installed outside the supporting steel cylinder (101), characterized in that: One end of the support steel cylinder (101) is fixed with an air nozzle (102), both ends of the support steel cylinder (101) are provided with supports (104); The support (104) is rotatably connected with driving wheels (105) arranged in symmetry through a rotating shaft; Both ends of the support steel cylinder (101) are provided with lifting adjusting mechanisms (2) for adjusting the height of the driving support (104).
2. The height-adjustable stainless steel quick-lock repair air bag according to claim 1, characterized in that: A gas conveying channel corresponding to the air nozzle (102) is formed in the support steel cylinder (101), and one end of the gas conveying channel is in communication with a cavity formed by the support steel cylinder (101) and the air bag (103).
3. The height-adjustable stainless steel quick-latch repair air bag of claim 1, wherein: The lifting adjusting mechanism (2) comprises a rectangular frame (201) fixed at both ends of the support steel cylinder (101) and a partition plate (202) fixed inside the rectangular frame (201), and the partition plate (202) is rotatably connected with a threaded rod (203) through a bearing; The top end of the threaded rod (203) is fixed with a first helical gear (205), the surface of the first helical gear (205) is meshingly connected with a second helical gear (206), two groups of the second helical gears (206) are fixed with a driving rod (207), the inside of the rectangular frame (201) is fixed with a fixed plate (208), the fixed plate (208) is rotatably connected with the driving rod (207) through a bearing, the support (104) is fixed with a moving seat (204), and the moving seat (204) is threadedly connected to the surface of the threaded rod (203) through a threaded hole.
4. The height-adjustable stainless steel quick-latch repair air bag of claim 3, wherein: The bottom end of the threaded rod (203) is rotatably connected with the rectangular frame (201) through a bearing, and one end of the driving rod (207) penetrates through one of the fixed plates (208) and extends to the outside of the fixed plate (208).
5. The height-adjustable stainless steel quick-latch repair air bag of claim 3, wherein: The outer dimension of the moving seat (204) is in contact with the inner cavity side wall of the rectangular frame (201), so as to limit the movement of the moving seat (204).
6. The height-adjustable stainless steel quick-latch repair air bag of claim 3, wherein: The surface of the rectangular frame (201) is provided with a scale line near the position of the moving seat (204).