Safety detection device of water delivery tunnel

Abstract

The invention discloses a safety detection device for a water tunnel. The safety detection device comprises a walking device; the supporting frame is arranged on the walking device; the pressing structure comprises an annular air cavity, a plurality of first pneumatic parts, a plurality of second pneumatic parts and an air supply structure, the annular air cavity is formed in the supporting frame, the first pneumatic parts are arranged on the front side of the annular air cavity in an annular array mode, and the second pneumatic parts are arranged on the rear side of the annular air cavity in an annular array mode; the first pneumatic part and the second pneumatic part both communicate with the annular air cavity, and the air supply structure communicates with the annular air cavity so as to supply air to the annular air cavity; the annular rubber belt abuts against the lining circular seam of the water delivery tunnel through a pressing structure so that a detection cavity of a herringbone structure can be formed above the lining circular seam. The device provided by the invention can be used for rapidly detecting the sealing performance of the circular seam of the water delivery tunnel.

Description

Technical Field

[0001] The present invention belongs to the field of detection devices, and more specifically, relates to a safety detection device for a water conveyance tunnel. Background Art

[0002] Using water diversion tunnels has the advantages of being less susceptible to pollution and saving land. However, leakage and seepage problems in water diversion tunnels not only cause a large amount of water resource waste, but also seriously threaten the safety of water diversion lines. Patent publication number CN116973046A discloses a detection device for detecting the sealing performance of the annular seam of the inner lining of a water diversion tunnel, which includes a walking device, a measuring slot assembly system and a water pressure loading detection system; the measuring slot assembly system and the water pressure loading detection system are both arranged on the walking device; the working end of the measuring slot assembly system is provided with a detection slot; the pressurizing end of the water pressure loading detection system is connected to the detection slot, which is used to pressurize water into the detection slot to detect the sealing performance of the annular seam of the inner lining of the water diversion tunnel. The detection equipment is designed and manufactured based on the internal conditions of the secondary lining of the large-section prototype tunnel. The detection slot can fit tightly to the inner lining of the water diversion tunnel, and the working surface of the detection slot changes with the tunnel section when the walking device moves, as well as the control of the test water pressure during the experiment, which can greatly reduce the test preparation time for the sealing performance of each annular seam, and analyze and warn the water pressure data during the experiment. The equipment needs to be equipped with a water tank, which increases the weight of the equipment and makes it more difficult to move. On the other hand, as the detection continues, the water in the water tank is continuously consumed. For longer water transfer tunnels, as the water is consumed, the water tank needs to be replenished midway, which makes replenishment difficult. Summary of the invention

[0003] An object of the present invention is to solve at least the above problems and to provide at least the advantages which will be described hereinafter.

[0004] An object of the present invention is to provide a safety detection device for a water conveyance tunnel, which can be lightweight and convenient to move in the water conveyance tunnel. It can quickly detect the tightness of the annular seam of the water conveyance tunnel, so as to deal with the leaking annular seam, promptly eliminate the safety hazards caused by the leakage of the annular seam, and increase the safety of the operation of the water conveyance tunnel.

[0005] In order to achieve these purposes and other advantages of the present invention, a safety detection device for a water conveyance tunnel is provided, comprising: Walking device; A support frame, which is arranged on the walking device; A compression structure, comprising an annular air cavity, a plurality of first pneumatic parts, a plurality of second pneumatic parts and an air supply structure, wherein the annular air cavity is arranged on a support frame, the plurality of first pneumatic parts are arranged in an annular array in front of the annular air cavity, the plurality of second pneumatic parts are arranged in an annular array in rear of the annular air cavity, the first pneumatic parts and the second pneumatic parts are both connected to the annular air cavity, and the air supply structure is connected to the annular air cavity to supply air to the annular air cavity; An annular rubber belt is abutted against the annular seam of the inner liner of the water conveyance tunnel through a compression structure to form a detection cavity of a herringbone structure above the annular seam of the inner liner; Among them, the air supply structure injects gas into the annular air cavity. If the air pressure in the detection cavity gradually increases and remains unchanged after the air supply structure stops supplying air, it means that there is no leakage in the annular seam of the inner lining of the water transfer tunnel.

[0006] Preferably, the first pneumatic member presses against the front side of the endless rubber belt, and the second pneumatic member presses against the rear side of the endless rubber belt.

[0007] Preferably, the first pneumatic component and the second pneumatic component both include: An outer pneumatic member, which is disposed on the annular air cavity; The inner pneumatic part is arranged on the annular air cavity, and the lower ends of the inner pneumatic part and the outer pneumatic part are overlapped.

[0008] Preferably, the outer pneumatic part and the inner pneumatic part both include: A first telescopic member, the interior of which is a hollow structure, the cross section of which is a rectangle, the first telescopic member is disposed on the annular air cavity, and the interior of the first telescopic member is communicated with the interior of the annular air cavity; A plurality of second telescopic members, each of which has a hollow structure inside, is arranged at one end of the first telescopic member away from the annular air cavity, and the second telescopic member is connected to the first telescopic member; When the first telescopic member and the second telescopic member are extended under the action of air pressure, the second telescopic member is closely in contact with the annular rubber belt so that the annular rubber belt is closely in contact with the water conveyor.

[0009] Preferably, when both the first telescopic member and the second telescopic member are extended, the distance between the tops of two adjacent second telescopic members is less than 1 cm.

[0010] Preferably, a fiber grating air pressure sensor is provided in the detection cavity to detect the air pressure in the detection cavity.

[0011] Preferably, the air supply structure includes an air pump and an air valve, the air pump is arranged on the walking device, the air pump is connected to the annular air cavity through a pipeline, and the air valve is arranged on the pipeline.

[0012] Preferably, an air leakage detection device is provided at the edge of the annular rubber belt to detect the sealing effect of the detection cavity.

[0013] Preferably, the air leakage detection device comprises: An annular sponge is arranged at the edge of the annular rubber belt; An infiltration tube, which is wrapped in the sponge, and is provided with a plurality of micropores to allow the liquid in the infiltration tube to enter the annular sponge; A liquid storage tank is arranged on the traveling device, the liquid storage tank is filled with leakage detection liquid, and the liquid storage tank is connected with the infiltration tube through a liquid pipe; The liquid supply pump is arranged on the walking device and is connected with the liquid pipe to pump the leakage detection liquid in the liquid storage tank to the annular sponge so as to keep the annular sponge moist.

[0014] Preferably, an LED lamp is provided on the support frame.

[0015] The present invention includes at least the following beneficial effects: First, the present invention utilizes the change of air pressure to detect the tightness of the annular seam, thereby reducing the use of water tanks, making the equipment lightweight, and facilitating the movement of the device in the water tunnel. Second, the first pneumatic part and the second pneumatic part of the present invention can make the device suitable for water tunnels of different sizes, increasing the versatility of the device, and on the other hand, even in uneven tunnels, the annular rubber belt can be tightly abutted against the tunnel, reducing the installation time of the device and improving the efficiency of detection. Third, the air leakage detection device of the present invention can quickly determine whether air leakage occurs at the abutment between the annular rubber belt and the water tunnel.

[0016] Other advantages, objectives and features of the present invention will be embodied in part through the following description, and in part will be understood by those skilled in the art through study and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of a technical solution of the present invention; Figure 2 It is a schematic diagram of the structure of the first pneumatic part and the second pneumatic part on the annular air cavity of the present invention; Figure 3 It is a schematic diagram of the structure of an external pneumatic part or an internal pneumatic part.

[0018] 1. Support frame 1; 2. Annular rubber belt 2; 3. Compression structure 3; 4. Annular air cavity 4; 5. Water conveyance tunnel 5; 6. Walking device 6; 31. First pneumatic part 31; 32. Second pneumatic part; 301. Inner pneumatic part 301; 302. Outer pneumatic part 302; 303. First telescopic part 303; 304. Second telescopic part 304. DETAILED DESCRIPTION

[0019] The present invention is further described in detail below in conjunction with the accompanying drawings so that those skilled in the art can implement the invention with reference to the description.

[0020] It should be understood that the terms such as “having”, “including” and “comprising” used herein do not exclude the existence or addition of one or more other elements or combinations thereof.

[0021] It should be noted that the experimental methods described in the following embodiments are conventional methods unless otherwise specified, and the reagents and materials can be obtained from commercial sources unless otherwise specified; in the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "set" should be understood in a broad sense, for example, they can be fixedly connected, set, or detachably connected, set, or connected and set in one piece. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood in specific circumstances. The orientation or position relationship indicated by the terms "lateral", "longitudinal", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention.

[0022] like Figure 1-3 As shown, the present invention provides a safety detection device for a water conveyance tunnel 5, comprising: Walking device 6; A support frame 1, which is arranged on a walking device 6; The compression structure 3 includes an annular air cavity 4, a plurality of first pneumatic parts 31, a plurality of second pneumatic parts and an air supply structure. The annular air cavity 4 is arranged on the support frame 1. The plurality of first pneumatic parts 31 are arranged in an annular array in front of the annular air cavity 4. The plurality of second pneumatic parts are arranged in an annular array in the rear of the annular air cavity 4. The first pneumatic parts 31 and the second pneumatic parts are both connected to the annular air cavity 4. The air supply structure is connected to the annular air cavity 4 to supply air to the annular air cavity 4. The annular rubber belt 2 is abutted against the inner liner annular seam of the water conveyance tunnel 5 through the pressing structure 3 to form a detection cavity of a herringbone structure above the inner liner annular seam; The air supply structure injects gas into the annular air cavity 4. If the air pressure in the detection cavity gradually increases and remains unchanged after the air supply structure stops supplying air, it means that there is no leakage in the annular seam of the inner lining of the water conveyance tunnel 5.

[0023] In the present technical solution, the walking device 6 can walk autonomously in the water tunnel 5. The first pneumatic part 31 and the second pneumatic part can be extended and retracted under the action of air pressure, and can be pneumatic telescopic rods. The width of the annular rubber belt 2 can be 30-50 cm. The first pneumatic part 31 abuts against the front side of the annular rubber belt 2, and the second pneumatic part abuts against the right side of the annular rubber belt 2, so that the annular rubber forms a detection cavity at the annular seam of the water tunnel 5. Gas is introduced into the detection cavity. If the air pressure continues to rise and remains unchanged for a period of time, it means that the air tightness of the annular seam is good and there is no leakage in the annular seam.

[0024] In another technical solution, the first pneumatic member 31 is pressed against the front side of the annular rubber belt 2, and the second pneumatic member is pressed against the rear side of the annular rubber belt 2. The first pneumatic member 31 and the second pneumatic member are pressed against the annular rubber belt 2, so that the device can be applied to water tunnels 5 of different sizes, increasing the universal properties of the device.

[0025] In another technical solution, the first pneumatic part 31 and the second pneumatic part both include: An outer pneumatic member 302, which is arranged on the annular air cavity 4; The inner pneumatic component 301 is disposed on the annular air cavity 4 , and the lower ends of the inner pneumatic component 301 and the outer pneumatic component 302 are overlapped with each other.

[0026] The outer pneumatic part 302 and the inner pneumatic part 301 are arranged in an overlapping manner, so that after the inner pneumatic part 301 and the outer pneumatic part 302 are extended, the gap between the inner pneumatic part 301 and the outer pneumatic part 302 at the end away from the annular air cavity 4 can be reduced, so that each position of the annular rubber belt 2 is tightly fitted to the tunnel, avoiding air leakage due to the loose contact between the annular rubber belt 2 and the tunnel at the gap position.

[0027] In another technical solution, the outer pneumatic part 302 and the inner pneumatic part 301 both include: The first telescopic member 303 has a hollow structure inside. The cross section of the first telescopic member 303 is rectangular. The first telescopic member 303 is disposed on the annular air cavity 4. The inside of the first telescopic member 303 is connected to the inside of the annular air cavity 4. A plurality of second telescopic members 304, each of which has a hollow structure inside, and the plurality of second telescopic members 304 are arranged at one end of the first telescopic member 303 away from the annular air cavity 4, and the second telescopic members 304 are connected to the first telescopic member 303; When the first telescopic member 303 and the second telescopic member 304 are extended under the action of air pressure, the second telescopic member 304 is closely in contact with the annular rubber belt 2 so that the annular rubber belt 2 is closely in contact with the water conveyor.

[0028] A plurality of second telescopic members 304 are arranged on the top of the first telescopic member 303, which increases the contact points on the annular rubber belt 2. When the tunnel is uneven, each part of the annular rubber belt 2 can be tightly contacted with the tunnel.

[0029] In another technical solution, when the first telescopic member 303 and the second telescopic member 304 are both extended, the distance between the tops of two adjacent second telescopic members 304 is less than 1 cm. The smaller the distance between the tops of two adjacent second telescopic members 304, the smaller the gap, which reduces the number of positions where the annular rubber belt 2 is not in contact, and avoids the situation where the annular rubber belt 2 is not in close contact with the tunnel due to a large gap.

[0030] In another technical solution, a fiber Bragg grating pressure sensor is provided in the detection cavity to detect the air pressure in the detection cavity. The fiber Bragg grating pressure sensor can sensitively sense the change of air pressure in the sealed cavity, so as to provide operators with a more accurate trend of air pressure change.

[0031] In another technical solution, the air supply structure includes an air pump and an air valve. The air pump is arranged on the walking device 6, the air pump is connected to the annular air cavity 4 through a pipeline, and the air valve is arranged on the pipeline.

[0032] In another technical solution, an air leakage detection device is provided at the edge of the annular rubber belt 2 to detect the sealing effect of the detection cavity.

[0033] In another technical solution, the air leakage detection device includes: An annular sponge, which is arranged at the edge of the annular rubber belt 2; An infiltration tube, which is wrapped in the sponge, and is provided with a plurality of micropores to allow the liquid in the infiltration tube to enter the annular sponge; A liquid storage tank, which is arranged on the walking device 6, the liquid storage tank is filled with leakage detection liquid, and the liquid storage tank is connected with the infiltration tube through a liquid pipe; The liquid supply pump is arranged on the walking device 6, and the liquid supply pump is connected to the liquid pipe to pump the leakage detection liquid in the liquid storage tank to the annular sponge to keep the annular sponge moist.

[0034] The infiltration tube outputs leakage detection liquid into the annular sponge to keep the annular sponge moist, forming a liquid-sealed interface at the junction of the edge of the annular rubber belt 2 and the tunnel. Since the leakage detection liquid is a liquid containing a surfactant such as a detergent, bubbles will be generated at the leakage point when there is a leakage point, which is convenient for intuitive detection and judgment of the airtightness of the annular rubber belt 2 and the tunnel.

[0035] In another technical solution, an LED lamp is provided on the support frame 1. The LED lamp can provide illumination to facilitate the detection work of the operator.

[0036] Although the embodiments of the present invention have been disclosed as above, they are not limited to the applications listed in the specification and the implementation modes, and they can be fully applied to various fields suitable for the present invention. For those familiar with the art, additional modifications can be easily implemented. Therefore, without departing from the general concept defined by the claims and the scope of equivalents, the present invention is not limited to the specific details and the illustrations shown and described herein.

Claims

1. A safety detection device for a water conveyance tunnel, characterized in that: include: Walking device; A support frame, which is arranged on the walking device; A compression structure, comprising an annular air cavity, a plurality of first pneumatic parts, a plurality of second pneumatic parts and an air supply structure, wherein the annular air cavity is arranged on a support frame, the plurality of first pneumatic parts are arranged in an annular array in front of the annular air cavity, the plurality of second pneumatic parts are arranged in an annular array in rear of the annular air cavity, the first pneumatic parts and the second pneumatic parts are both connected to the annular air cavity, and the air supply structure is connected to the annular air cavity to supply air to the annular air cavity; An annular rubber belt is abutted against the annular seam of the inner liner of the water conveyance tunnel through a compression structure to form a detection cavity of a herringbone structure above the annular seam of the inner liner; Among them, the air supply structure injects gas into the annular air cavity. If the air pressure in the detection cavity gradually increases and remains unchanged after the air supply structure stops supplying air, it means that there is no leakage in the annular seam of the inner lining of the water transfer tunnel.

2. The safety detection device for a water conveyance tunnel according to claim 1, characterized in that: The first pneumatic member is pressed against the front side of the endless rubber belt, and the second pneumatic member is pressed against the rear side of the endless rubber belt.

3. The safety detection device for a water conveyance tunnel according to claim 1, characterized in that: The first pneumatic part and the second pneumatic part both include: An outer pneumatic member, which is disposed on the annular air cavity; The inner pneumatic part is arranged on the annular air cavity, and the lower ends of the inner pneumatic part and the outer pneumatic part are overlapped.

4. The water conveyance tunnel safety detection device according to claim 3, characterized in that: Both external pneumatic parts and internal pneumatic parts include: A first telescopic member, the interior of which is a hollow structure, the cross section of which is a rectangle, the first telescopic member is disposed on the annular air cavity, and the interior of the first telescopic member is communicated with the interior of the annular air cavity; A plurality of second telescopic members, each of which has a hollow structure inside, is arranged at one end of the first telescopic member away from the annular air cavity, and the second telescopic member is connected to the first telescopic member; When the first telescopic member and the second telescopic member are extended under the action of air pressure, the second telescopic member is closely in contact with the annular rubber belt so that the annular rubber belt is closely in contact with the water conveyor.

5. The water conveyance tunnel safety detection device according to claim 4, characterized in that: When the first telescopic member and the second telescopic member are both extended, the distance between the tops of two adjacent second telescopic members is less than 1 cm.

6. The water conveyance tunnel safety detection device according to claim 1, characterized in that: A fiber grating air pressure sensor is arranged in the detection cavity to detect the air pressure in the detection cavity.

7. The water conveyance tunnel safety detection device according to claim 1, characterized in that: The air supply structure comprises an air pump and an air valve. The air pump is arranged on the walking device and is connected with the annular air cavity through a pipeline. The air valve is arranged on the pipeline.

8. The water conveyance tunnel safety detection device according to claim 1, characterized in that: An air leakage detection device is arranged at the edge of the annular rubber belt to detect the sealing effect of the detection cavity.

9. The water conveyance tunnel safety detection device according to claim 1, characterized in that: The air leakage detection device includes: An annular sponge is arranged at the edge of the annular rubber belt; An infiltration tube, which is wrapped in the sponge, and is provided with a plurality of micropores to allow the liquid in the infiltration tube to enter the annular sponge; A liquid storage tank is arranged on the traveling device, the liquid storage tank is filled with leakage detection liquid, and the liquid storage tank is connected with the infiltration tube through a liquid pipe; The liquid supply pump is arranged on the walking device and is connected with the liquid pipe to pump the leakage detection liquid in the liquid storage tank to the annular sponge so as to keep the annular sponge moist.

10. The water conveyance tunnel safety detection device according to claim 1, characterized in that: The support frame is provided with an LED lamp.

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