Leakage detection system in metal roof construction process

Abstract

The invention provides a leak detection system in a metal roof construction process, and belongs to the technical field of building construction, the leak detection system comprises two longitudinal driving mechanisms, the two longitudinal driving mechanisms are respectively installed on two sides of the top in an exhibition hall, and the longitudinal driving mechanisms are used for driving a leak detection mechanism to move longitudinally; the transverse driving mechanism is arranged between the two longitudinal driving mechanisms, and the transverse driving mechanism is used for driving the leak detection mechanism to move transversely; the leak detection mechanism is mounted on the transverse driving mechanism, and the leak detection mechanism comprises a sealing box capable of ascending and descending in the vertical direction; according to the invention, by arranging the leakage detection mechanism, local leakage detection is carried out on the exhibition hall metal roof by using a pressure test method; the leakage detection mechanism is driven to move through the longitudinal driving mechanism and the transverse driving mechanism, leakage detection is carried out on the gaps of the roof one by one, manual intervention is not needed in the whole leakage detection process, and the leakage detection efficiency is improved while the safety is guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of building construction, and particularly relates to a leak detection system during the construction of a metal roof. Background Art

[0002] In the modern construction field, metal roofs are widely used in various large commercial buildings, exhibition halls, and public facilities due to their advantages such as light weight, high strength, good waterproof performance, and convenient installation. However, during the construction of metal roofs, ensuring their waterproof seal is crucial. Any slight leakage may cause damage to the structure under the roof, damage to the interior decoration, and even affect the normal use function of the building, resulting in huge economic losses.

[0003] Currently, the main leak detection methods during the construction of metal roofs are the traditional manual visual inspection method, the water shower test method, and the pressure test method.

[0004] The manual visual inspection method completely relies on the experience and naked eyes of construction workers. It is extremely difficult to detect some hidden gaps, holes, and tiny leakage points, with low detection accuracy and strong subjectivity, and it is easy to miss detections.

[0005] The water shower test method is to continuously shower water on the roof for a certain period of time after the roof construction is completed, and observe whether there is any leakage under the roof. Although this method can detect obvious leakage problems to a certain extent, it has poor detection effects for intermittent leakage or extremely small leakage amounts. Moreover, the water shower test is greatly restricted by weather conditions, takes a long time, and requires a large amount of water resources.

[0006] During the side leak detection of the metal roof of the exhibition hall, due to the large area and relatively large number of exhibition halls, it is very difficult for the above two methods to accurately detect all gaps.

[0007] The pressure test method usually pressurizes a local space of the metal roof and judges whether there is leakage by detecting the pressure change. This method is relatively more accurate, but the operation is relatively complex, requires professional equipment and technical personnel, and the detection speed is relatively slow, thus resulting in relatively poor practicability. Summary of the Invention

[0008] The present invention provides a leak detection system during the construction of a metal roof to solve the technical problems in the prior art.

[0009] To solve the above problems, the leak detection system during the construction of the metal roof provided by the present invention adopts the following technical solutions: It includes two longitudinal driving mechanisms, which are respectively installed on both sides of the top inside the exhibition hall. The longitudinal driving mechanism is used to drive the leak detection mechanism to move longitudinally;

[0010] A lateral driving mechanism is arranged between two longitudinal driving mechanisms. The lateral driving mechanism is used to drive the leak detection mechanism to move laterally.

[0011] The leak detection mechanism is installed on the lateral driving mechanism. The leak detection mechanism includes a sealing box that can move up and down in the vertical direction. Define the width direction of the sealing box as the left-right direction. An opening is provided at the top of the sealing box. A barometric pressure sensor is fixedly installed inside the sealing box. The sealing box is connected to a booster air pump through a pipeline.

[0012] As a further improvement, the longitudinal driving mechanism includes two protective boxes. A driving wheel and a driven wheel are respectively rotatably assembled in the two protective boxes. The driving wheel is drivingly connected to a driving motor for driving the driving wheel to rotate. A transmission cable is wound around the driving wheel and the driven wheel.

[0013] The structure of the lateral driving mechanism is the same as that of the longitudinal driving mechanism.

[0014] As a further improvement, there are two driving wheels, two driven wheels and two transmission cables.

[0015] As a further improvement, a lifting structure is provided below the sealing box. The lifting structure includes a bottom plate. An annular groove is provided at the top of the bottom plate. An annular protrusion that cooperates with the annular groove is fixedly connected to the bottom of the sealing box, so that the annular protrusion can slide up and down in the annular groove. A jacking airbag is provided between the annular protrusion and the annular groove. The jacking airbag is connected to a jacking air pump through a pipeline. The jacking air pump is used to inflate the jacking airbag to jack up the annular protrusion, thereby driving the sealing box to rise.

[0016] As a further improvement, the bottom of the bottom plate is detachably connected to a base.

[0017] As a further improvement, a rubber ring is detachably connected to the top of the sealing box.

[0018] As a further improvement, through holes are provided on both the left and right sides of the sealing box. Telescopic bars are slidably assembled in the through holes. Springs for driving the telescopic bars to reset are connected to the telescopic bars. Vent holes are provided above the through holes. Wedge-shaped blocking pieces for sealing the vent holes are integrally formed on the telescopic bars.

[0019] Sealing blocks that cooperate with the telescopic bars are provided on both the left and right sides of the rubber ring.

[0020] The telescopic bars have a sealing position and an opening position in their telescopic stroke. When the telescopic bar is in the sealing position, the wedge-shaped blocking piece is in close contact with the vent hole to prevent gas from escaping through the vent hole. When the telescopic bar is in the opening position, the wedge-shaped blocking piece is separated from the vent hole, so that gas can escape through the vent hole.

[0021] As a further improvement, a sealing bump adapted to the roof gap is integrally formed at the top of the rubber ring.

[0022] As a further improvement, a rubber pad is fixedly connected to the side surface of the telescopic strip.

[0023] The beneficial effects of the above technical solutions of the present invention are as follows:

[0024] 1. By providing a leak detection mechanism, the present invention uses the pressure test method to locally detect leaks in the exhibition hall metal roof; and drives the leak detection mechanism to move through the longitudinal drive mechanism and the transverse drive mechanism to detect leaks in the gaps of the roof one by one. The entire leak detection process does not require manual intervention, which improves the leak detection efficiency while ensuring safety.

[0025] 2. For the gaps at the corners, by providing a telescopic strip, when the leak detection mechanism moves to the corner, the telescopic strip shrinks. At this time, a sealed space is formed among the wall corner, the telescopic strip, the sealing box and the sealing block. When the telescopic strip shrinks, the wedge-shaped flap of the telescopic strip separates from the air vent hole, and the sealed space formed among the wall corner, the telescopic strip, the sealing box and the sealing block communicates with the inside of the sealing box. When the inside of the sealing box is pressurized at this time, the sealed space formed outside is also pressurized synchronously, thereby realizing the leak detection of the gaps at the corners. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] By reading the following detailed description with reference to the accompanying drawings, the above and other objects, features and advantages of the exemplary embodiments of the present invention will become readily understood. In the drawings, several embodiments of the present invention are shown in an exemplary rather than restrictive manner, and the same or corresponding reference numerals represent the same or corresponding parts, wherein:

[0027] Figure 1 is a top view structural schematic diagram of the leak detection system during the construction of the metal roof of the present invention;

[0028] Figure 2 is a structural schematic diagram of the longitudinal drive mechanism of the leak detection system during the construction of the metal roof of the present invention;

[0029] Figure 3 is a structural schematic diagram of the leak detection mechanism of the leak detection system during the construction of the metal roof of the present invention;

[0030] Figure 4 is Figure 3 an enlarged view of part A of

[0031] Figure 5 is a structural schematic diagram of the rubber ring of the leak detection system during the construction of the metal roof of the present invention;

[0032] Figure 6 is a schematic diagram of different roof gaps.

[0033] Description of the reference numerals:

[0034] 1. Longitudinal drive mechanism; 101. Protective box; 102. Driving wheel; 103. Transmission cable; 104. Driven wheel; 2. Transverse drive mechanism; 3. Leak detection mechanism; 301. Base; 302. Bottom plate; 303. Sealing box; 304. Lifting air pump; 305. Boosting air pump; 306. Pressure sensor; 307. Rubber ring; 308. Lifting airbag; 309. Telescopic strip; 310. Rubber pad; 311. Spring; 312. Sealing block; 313. Vent hole; 314. Sealing convex block. Detailed implementation manners

[0035] The technical solutions in 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. Those skilled in the art should know that the embodiments described below are part of the embodiments of the present disclosure, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative efforts fall within the protection scope of the present invention.

[0036] In the prior art, there are many methods for detecting leaks in metal roofs, but most of them have the problems of excessive manual intervention and low detection efficiency.

[0037] Regarding the above problems, the present invention uses the principle of the pressure test method to detect leaks in metal roofs, and adjusts the position of the leak detection mechanism through the longitudinal drive mechanism and the transverse drive mechanism, so that the leak detection mechanism detects leaks in the gaps of the metal roof one by one, thereby reducing manual intervention and improving the leak detection efficiency.

[0038] Specifically, when detecting leaks, the lifting air pump inflates the lifting airbag to lift the sealing box, so that the rubber ring fits tightly with the roof surface. At the same time, the sealing convex block is inserted into the gap to be detected for sealing, ensuring that a sealed space is formed between the sealing box and the roof surface. At this time, the boosting air pump pressurizes the inside of the sealing box to the set value. After that, the boosting air pump stops. If the amount of pressure drop exceeds the set value within the set time, it indicates that there may be a leak in the gap at this position.

[0039] Since the area of the exhibition hall roof is relatively large, it is difficult to detect leaks in all gaps through mechanical equipment. The purpose of the present invention is to detect leaks in all regular gaps as much as possible to reduce manual participation in leak detection. Although the gaps at the roof corners are regular, it is difficult to detect leaks in them through the above sealing box structure. When detecting leaks at the roof corners, other corresponding sealing structures need to be replaced.

[0040] Therefore, the present invention provides a retractable telescopic strip on the side of the sealing box. When the leak detection mechanism is located at the corner of the wall, the telescopic strip is squeezed and contracted by the wall. At this time, a sealed space is formed between the top of the wall, the side of the wall, the telescopic strip, the two sealing blocks and the side of the sealing box. At the same time, due to the contraction of the telescopic strip, the wedge-shaped blocking piece of the telescopic strip is separated from the air vent, so that the sealed space formed outside the sealing box is connected with the inside of the sealing box. Thereafter, the leak detection can be completed through the above-mentioned leak detection method.

[0041] The bottom of the base plate is detachably connected to a base to facilitate adjustment of the position and angle of the base plate. In addition, the lifting air bag is connected to the lifting air pump through a hose, and the booster air pump is also connected to the sealing box with a hose to ensure that all pipes can still be connected normally after the angle of the base plate is adjusted.

[0042] Through this device, most roof gaps can be leak tested, thereby greatly reducing the workload of staff, and the device is relatively small in size, easy to install at high altitudes, and has better practicality and safety.

[0043] After introducing the basic principle of the present invention, various non-limiting embodiments of the present invention are described in detail below. The number of any element in the drawings is for illustration and not for limitation, and any naming is only for distinction and does not have any limiting meaning.

[0044] The principle and spirit of the present invention are explained in detail below with reference to several representative embodiments of the present invention.

[0045] Embodiment 1 of the leak detection system during metal roof construction provided by the present invention:

[0046] like Figures 1-6 As shown, it includes two longitudinal driving mechanisms 1, a transverse driving mechanism 2 and a leakage detection mechanism 3.

[0047] like Figure 1 and Figure 2 As shown, two longitudinal drive mechanisms 1 are respectively installed on both sides of the ceiling inside the exhibition hall, and the longitudinal drive mechanism 1 is used to drive the leakage detection mechanism 3 to move longitudinally; the longitudinal drive mechanism 1 includes two protection boxes 101, and the two protection boxes 101 are respectively equipped with a driving wheel 102 and a driven wheel 104 for rotation. The driving wheel 102 is transmission-connected to a driving motor (not shown in the figure) for driving the driving wheel 102 to rotate. In this embodiment, the driving wheel 102 and the driving motor are also connected to a reducer to reduce the output speed of the driving motor. The driving wheel 102 and the driven wheel 104 are wound with a transmission rope 103. The transmission rope 103 is relatively safer when installed at high altitude. In other embodiments, the transmission rope 103 can also be used in combination with a synchronous belt. The transmission rope 103 mainly plays a supporting role, and the synchronous belt can improve the movement accuracy.

[0048] In this embodiment, there are two driving wheels 102, two driven wheels 104 and two transmission cables 103 to improve the supporting effect.

[0049] The lateral driving mechanism 2 is installed between the two longitudinal driving mechanisms 1. The lateral driving mechanism 2 is used to drive the leak detection mechanism 3 to move laterally. The structure of the lateral driving mechanism 2 is the same as that of the longitudinal driving mechanism 1, which will not be elaborated here.

[0050] As Figures 3-5 shown, the leak detection mechanism 3 is installed on the lateral driving mechanism 2. The leak detection mechanism 3 includes a sealing box 303 that can be lifted in the up and down direction. The width direction of the sealing box 303 is defined as the left and right direction. An opening is provided at the top of the sealing box 303. A pressure sensor 306 is fixedly installed inside the sealing box 303. The sealing box 303 is connected to a supercharging air pump 305 through a pipeline. In this embodiment, a one-way valve is also installed on the pipeline between the sealing box 303 and the supercharging air pump 305 to prevent the gas in the sealing box 303 from being discharged through the pipeline between the sealing box 303 and the supercharging air pump 305.

[0051] An elevating structure is provided below the sealing box 303. In this embodiment, the elevating structure includes a bottom plate 302. An annular groove is provided at the top of the bottom plate 302. An annular protrusion that cooperates with the annular groove is fixedly connected to the bottom of the sealing box 303, so that the annular protrusion can slide in the annular groove in the up and down direction. A limiting structure is provided between the annular protrusion and the annular groove to prevent the annular protrusion from completely disengaging from the annular groove; a jacking airbag 308 is provided between the annular protrusion and the annular groove. The jacking airbag 308 is connected to a jacking air pump 304 through a pipeline. The jacking air pump 304 is used to inflate the jacking airbag 308 to jack up the annular protrusion, thereby driving the sealing box 303 to rise. The structure of the jacking airbag 308 is used to control the lifting of the sealing box 303, which has a relatively light mass and a relatively low cost.

[0052] In this embodiment, the bottom plate 302 is detachably connected to a base 301. Since the metal roof includes lateral gaps and longitudinal gaps, the detachable connection between the bottom plate 302 and the base 301 facilitates the adjustment of the angle of the bottom plate 302.

[0053] A rubber ring 307 is detachably connected to the top of the sealing box 303. The rubber ring 307 is a rectangular rubber ring 307. A sealing convex block 314 that cooperates with the roof gap is integrally formed at the top of the rubber ring 307. The sealing convex block 314 is triangular or wedge-shaped, and the sealing convex block 314 is inserted into the gap to ensure the sealing of the part to be tested.

[0054] As Figure 4As shown, through holes are provided on both the left and right sides of the sealed box 303. A telescopic strip 309 is slidably assembled in the through holes. The telescopic strip 309 is connected to a spring 311 for driving the telescopic strip 309 to reset. In other embodiments, an elastic structure such as a reed can also be used instead. An air vent 313 is provided above the through hole. The telescopic strip 309 is integrally formed with a wedge-shaped baffle for sealing the air vent 313.

[0055] As Figure 5 As shown, sealing blocks 312 that cooperate with the telescopic strip 309 are provided on both the left and right sides of the rubber ring 307. Two sealing blocks 312 are provided on each side.

[0056] The telescopic strip 309 has a sealing position and an opening position during its telescopic stroke. When the telescopic strip 309 is in the sealing position, the wedge-shaped baffle is in close contact with the air vent 313 to prevent gas from being discharged through the air vent 313. When the telescopic strip 309 is in the opening position, the wedge-shaped baffle is separated from the air vent 313, allowing gas to be discharged through the air vent 313.

[0057] A rubber pad 310 is fixedly connected to the side surface of the telescopic strip 309 to ensure direct relative sealing between the telescopic strip 309 and the wall.

[0058] Although this specification has shown and described multiple embodiments of the present invention, it will be apparent to those skilled in the art that such embodiments are provided by way of example only. Those skilled in the art will think of many changes, alterations, and alternative ways without departing from the spirit and concept of the present invention. It should be understood that various alternative solutions of the embodiments of the present invention described herein can be adopted during the practice of the present invention. The appended claims are intended to define the protection scope of the present invention and thus cover the module compositions, equivalents, or alternative solutions within the protection scope of these claims.

Claims

1. A leak detection system during metal roof construction, characterized in that: include: Two longitudinal drive mechanisms (1), the two longitudinal drive mechanisms (1) are respectively installed on both sides of the ceiling inside the exhibition hall, and the longitudinal drive mechanisms (1) are used to drive the leak detection mechanism (3) to move longitudinally; A transverse driving mechanism (2) is arranged between the two longitudinal driving mechanisms (1), and the transverse driving mechanism (2) is used to drive the leakage detection mechanism (3) to move transversely; A leak detection mechanism (3) is installed on the transverse driving mechanism (2), the leak detection mechanism (3) comprises a sealing box (303) that can be raised and lowered in the up and down directions, the width direction of the sealing box (303) is defined as the left and right direction, an opening is provided at the top of the sealing box (303), an air pressure sensor (306) is fixedly installed inside the sealing box (303), and the sealing box (303) is connected to a booster air pump (305) through a pipeline.

2. The leak detection system during metal roof construction according to claim 1, characterized in that: The longitudinal drive mechanism (1) comprises two protection boxes (101), wherein a driving wheel (102) and a driven wheel (104) are rotatably mounted in the two protection boxes (101), the driving wheel (102) is transmission-connected to a driving motor for driving the driving wheel (102) to rotate, and a transmission rope (103) is wound around the driving wheel (102) and the driven wheel (104); The structure of the transverse driving mechanism (2) is the same as that of the longitudinal driving mechanism (1).

3. The leak detection system during metal roof construction according to claim 2, characterized in that: The driving wheel (102), the driven wheel (104) and the transmission rope (103) are each provided with two.

4. The leak detection system during metal roof construction according to claim 1, characterized in that: A lifting structure is provided below the sealing box (303), and the lifting structure includes a bottom plate (302), and an annular groove is provided on the top of the bottom plate (302); an annular protrusion matching the annular groove is fixedly connected to the bottom of the sealing box (303), so that the annular protrusion can slide in the annular groove in the up and down directions; a lifting air bag (308) is provided between the annular protrusion and the annular groove, and the lifting air bag (308) is connected to the lifting air pump (304) through a pipeline, and the lifting air pump (304) is used to inflate the lifting air bag (308) so that the lifting air bag (308) lifts the annular protrusion, thereby driving the sealing box (303) to rise.

5. The leak detection system during metal roof construction according to claim 4, characterized in that: The bottom of the bottom plate (302) is detachably connected to a base (301).

6. The leak detection system during metal roof construction according to claim 1, characterized in that: The top of the sealing box (303) is detachably connected to a rubber ring (307).

7. The leak detection system during metal roof construction according to claim 6, characterized in that: The sealing box (303) is provided with through holes on both sides thereof, a telescopic strip (309) is slidably mounted in the through holes, the telescopic strip (309) is connected to a spring (311) for driving the telescopic strip (309) to return to its original position, an air hole (313) is provided above the through holes, and the telescopic strip (309) is integrally formed with a wedge-shaped blocking piece for sealing the air hole (313); The left and right sides of the rubber ring (307) are both provided with sealing blocks (312) that cooperate with the telescopic strip (309); The telescopic strip (309) has a sealing position and an opening position in its telescopic stroke. When the telescopic strip (309) is in the sealing position, the wedge-shaped blocking piece is in close contact with the air vent (313) to prevent gas from being discharged from the air vent (313); when the telescopic strip (309) is in the opening position, the wedge-shaped blocking piece is separated from the air vent (313), allowing gas to be discharged through the air vent (313).

8. The leak detection system during metal roof construction according to claim 6, characterized in that: The top of the rubber ring (307) is integrally formed with a sealing protrusion (314) that fits in the gap of the roof.

9. The leak detection system during metal roof construction according to claim 1, characterized in that: A rubber pad (310) is fixedly connected to the side of the telescopic strip (309).

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