Anti-seepage detection device for municipal road drainage pipeline

Abstract

The utility model belongs to the technical field of pipelines, and particularly relates to an anti-leakage detection device for a municipal road drainage pipeline, which comprises a body, sealing structures are symmetrically arranged on two sides of the body, and the sealing structures can be attached to the inner wall of a drainage pipe; the driving wheel is arranged below the body and is used for driving the device to move in the drainage pipe; the air supply assemblies are arranged on the two sides of the body and used for sealing air pressure between the structures; the auxiliary structures are uniformly distributed at the outer end of the sealing structure in the circumferential direction and are symmetrically arranged front and back; wherein an air pressure sensor is arranged on the body and used for detecting the air pressure between the sealing structures when the device works. The effects of improving the detection accuracy and avoiding the missing detection phenomenon are achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of pipelines, and in particular relates to an anti-leakage detection device for municipal road drainage pipelines. Background Art

[0002] Drainage pipe systems play a vital role in modern urban infrastructure. They are responsible for safely transporting wastewater and rainwater from residential, industrial and commercial areas to treatment facilities or discharge points. However, over time, due to a variety of factors such as corrosion, ground subsidence, pipe aging or construction damage, drainage pipes may develop cracks, joints fall off or other forms of damage, resulting in leakage and potential environmental pollution.

[0003] Existing drainage pipe leakage detection is mostly done by driving a small car with a camera in the pipe. The video transmitted by the camera is observed by the operator's naked eyes. Although this method is efficient, it is easy to miss detections if it is only identified by the naked eye, which affects the accuracy of the detection. Utility Model Content

[0004] The purpose of the utility model is to provide an anti-leakage detection device for municipal road drainage pipes in order to solve the above-mentioned technical problems, so as to improve the detection accuracy and avoid the phenomenon of missed detection.

[0005] In view of this, the utility model provides an anti-leakage detection device for municipal road drainage pipes, which is characterized by comprising:

[0006] A body, wherein sealing structures are symmetrically arranged on both sides of the body, and the sealing structures can fit with the inner wall of the drain pipe;

[0007] A driving wheel, which is arranged below the body and is used to drive the device to move in the drain pipe;

[0008] An air supply assembly, which is arranged on both sides of the body to seal the air pressure between the structures;

[0009] Auxiliary structures, the auxiliary structures are evenly distributed around the outer end of the sealing structure and are symmetrically arranged front to back;

[0010] Wherein, an air pressure sensor is arranged on the main body to detect the air pressure between the sealing structures when the device is working.

[0011] In this technical solution, the sealing structure can be fitted with the inner wall of the drain pipe to form a sealed environment for detection, ensuring that the external air is not affected by the detection results during use, and the air supply component can increase the air pressure between the sealing structures. The air pressure sensor set on the main body can detect the change in air pressure between the sealing structures to reflect whether the drain pipe in the detection section is leaking, which is conducive to improving the detection accuracy. A hydraulic cylinder is set between the driving wheel and the main body to adjust the distance between the driving wheel and the inner wall of the drain pipe, and the cooperation between the sealing structure and the air supply component makes it easy for the device to detect drain pipes with different inner diameters, which is conducive to improving the applicability of the device.

[0012] In the above technical solution, further, the sealing structure includes:

[0013] A sealing disk, wherein the sealing disk is symmetrically arranged at both ends of the body, and a mounting groove is annularly arranged on the outer wall of the sealing disk;

[0014] A sealing airbag, wherein the sealing airbag is arranged in the mounting groove;

[0015] Wherein, the sealing airbag is connected to the air supply assembly, and after the sealing airbag is inflated, it can fit against the inner wall of the drain pipe.

[0016] In this technical solution, through the cooperation between the sealing groove, the sealing airbag, the sealing disk, and the air supply structure, the sealing airbag can be expanded to fit the inner wall of the drain pipe to improve the detection accuracy. Through the cooperation between the sealing airbag and the air supply component, it is convenient for the device to detect drain pipes with different inner diameters, which is conducive to improving the applicability of the device.

[0017] In the above technical solution, further, the air supply assembly includes:

[0018] An air pump, which is symmetrically arranged on both sides of the body and is connected to the sealing airbag through a pipeline;

[0019] An air intake pipe and an exhaust pipe, wherein the air intake pipe and the exhaust pipe are respectively arranged on sealing plates on both sides of the body and are connected to the air pump through pipelines;

[0020] An air outlet pipe, which is arranged on the main body, and a valve is arranged at the air outlet end of the air inlet pump, which is respectively connected to the air outlet pipe and the pipeline;

[0021] Among them, the air pumps on both sides of the main body are an air extraction pump on one side and an air intake pump on the other side, and the air intake pump is connected to the exhaust pipe.

[0022] In this technical solution, the sealing airbag can be inflated through the cooperation between the air intake pump and the air intake pipe, so that the sealing airbag can be expanded to improve the sealing effect, which is convenient for testing drain pipes with different inner diameters. After the sealing airbag is expanded, the output end of the air intake pump can be changed through the valve, and the air pressure between the sealing structure can be increased through the air outlet pipe, and the air pressure change can be observed to confirm whether the drain pipe is leaking. After the test is completed, the air inside the sealing airbag can be extracted through the cooperation between the air pump and the exhaust pipe, so that the sealing airbag can be reduced, and the friction between the sealing airbag and the inner wall of the drain pipe can be avoided when the device moves, which is conducive to extending the service life of the sealing airbag.

[0023] In the above technical solution, further, the auxiliary structure includes:

[0024] A fixed block, wherein electric telescopic rods are evenly arranged on the outer wall of the fixed block in a circumferential direction;

[0025] A mounting plate, the mounting plate being arranged at the end of the output shaft of the electric telescopic rod;

[0026] A universal wheel, which is arranged on the mounting plate and contacts the inner wall of the drain pipe;

[0027] A spring is sleeved on the output shaft of the electric telescopic rod and is arranged between the mounting plate and the electric telescopic rod.

[0028] In the present technical solution, by cooperating among the electric telescopic rod, mounting plate, universal wheel and spring, the stability of the device in the drain pipe can be improved, and the device can be prevented from tilting during movement, which causes friction between the sealing airbag and the inner wall of the drain pipe, thereby helping to extend the service life of the device.

[0029] In the above technical solution, further, a telescopic structure is provided between the main body and the sealing disk.

[0030] In the above technical solution, further, the telescopic structure includes:

[0031] A cavity, wherein the cavity is arranged inside the body, and a screw rod is rotatably arranged in the cavity;

[0032] An adjusting sleeve, wherein the adjusting sleeve is sleeved on the screw rod, one end of the adjusting sleeve is connected to the sealing disk, and the other end is slidably arranged in the cavity and is threadedly connected to the screw rod;

[0033] A driving motor, wherein the driving motor is arranged on the outer wall of the main body, and the output shaft extends into the cavity, and a first bevel gear is arranged at the end of the output shaft;

[0034] A second bevel gear, which is disposed at the end of the screw rod and meshes with the first bevel gear;

[0035] The guide rods are symmetrically arranged on both sides of the adjusting sleeve to guide the movement of the sealing disk.

[0036] In this technical solution, the first bevel gear and the second bevel gear can be driven to rotate by a driving motor, thereby driving the screw and the adjusting sleeve to move, and the guide rods arranged on both sides of the adjusting sleeve can prevent the sealing disk from rotating during movement, and a limit plate is arranged between the sealing disk and the adjusting sleeve, and the limit plate and the adjusting sleeve are connected by a bearing. After the device detects a leak in a longer form, the detection range can be further reduced by adjusting the distance between the sealing structures, which is conducive to improving the detection efficiency.

[0037] In the above technical solution, further, a spraying structure is provided above the main body, and the spraying structure includes:

[0038] A containing tank, which is arranged above the body and is used to contain the pigment, and a sealing plate is arranged on the top of the containing tank;

[0039] A pump body, wherein the pump body is arranged inside the containing tank, and an atomizing nozzle is arranged on the top of the sealing plate;

[0040] Wherein, the pump body and the atomizing nozzle are connected via a connecting pipe.

[0041] In the present technical solution, through the cooperation between the receiving tank, the atomizing nozzle, the pump body and the sealing plate, after the existence of a gap in the drain pipe has been detected, the paint in the receiving tank can be sprayed out through the atomizing nozzle, wherein the atomized paint will be sprayed outward from the gap along the direction of the airflow, resulting in a darker color of the paint in the gap, which makes it easier for the operator to identify the specific location of the gap, avoids the operator from missing smaller gaps, and is conducive to improving the accuracy of detection.

[0042] In the above technical solution, further, a pan-tilt platform is arranged on one end surface of the auxiliary structure, and a camera is arranged on the pan-tilt platform.

[0043] In this technical solution, through the cooperation between the pan-tilt head and the camera, it is convenient for the operator to observe larger gaps, which is beneficial to improving the efficiency of detection.

[0044] In the above technical solution, further, a shielding cover is installed on the outside of the camera, and the shielding cover is transparent.

[0045] In the present technical solution, the shielding cover can protect the camera and the pan-tilt head, which is beneficial to prolonging the service life of the camera and the pan-tilt head.

[0046] The beneficial effects of the utility model are:

[0047] 1. The sealing structure can fit with the inner wall of the drain pipe to form a sealed environment for detection, ensuring that the external air is not affected by the detection results during use, and the air supply component can increase the air pressure between the sealing structures. The air pressure sensor set on the main body can detect the air pressure change between the sealing structures to reflect whether the drain pipe in the detection section is leaking, which is conducive to improving the detection accuracy. A hydraulic cylinder is set between the driving wheel and the main body to adjust the distance between the driving wheel and the inner wall of the drain pipe, and the cooperation between the sealing structure and the air supply component makes it easy for the device to detect drain pipes with different inner diameters, which is conducive to improving the applicability of the device.

[0048] 2. Through the cooperation between the air intake pump and the air intake pipe, the sealing airbag can be inflated to expand the sealing airbag to improve the sealing effect, which is convenient for testing drain pipes with different inner diameters. After the sealing airbag is expanded, the output end of the air intake pump can be changed through the valve, and the air pressure between the sealing structure can be increased through the air outlet pipe, and the air pressure changes can be observed to confirm whether the drain pipe is leaking. After the test is completed, the air inside the sealing airbag can be extracted through the cooperation between the air pump and the exhaust pipe to shrink the sealing airbag, avoid aggravating the friction between the sealing airbag and the inner wall of the drain pipe when the device is moved, and help to extend the service life of the sealing airbag. BRIEF DESCRIPTION OF THE DRAWINGS

[0049] Figure 1 It is a three-dimensional schematic diagram of the utility model;

[0050] Figure 2 It is a three-dimensional schematic diagram of the utility model from another angle;

[0051] Figure 3 It is a cross-sectional view of the utility model;

[0052] Figure 4 This utility model Figure 3 A magnified image of area A;

[0053] The symbols in the figure are:

[0054] 1. Main body; 2. Sealing structure; 201. Sealing plate; 202. Mounting groove; 203. Sealing airbag; 3. Driving wheel; 4. Air supply assembly; 401. Air pump; 402. Exhaust pipe; 403. Pipe; 404. Air intake pump; 405. Valve; 406. Exhaust pipe; 407. Intake pipe; 5. Auxiliary structure; 501. Fixing block; 502. Electric telescopic rod; 503. Mounting plate; 504. Universal wheel; 505. Spring; 6. , spraying structure; 601, containing tank; 602, sealing plate; 603, atomizing nozzle; 604, pump body; 605, connecting pipe; 7, telescopic structure; 701, cavity; 702, screw rod; 703, adjusting sleeve; 704, guide rod; 705, driving motor; 706, first bevel gear; 707, second bevel gear; 8, shielding cover; 9, camera; 10, pan / tilt; 11, hydraulic cylinder; 12, limit plate; 13, air pressure sensor. DETAILED DESCRIPTION

[0055] The following will be combined with the drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application belong to the scope of protection of this application.

[0056] In the description of the present application, it should be noted that the terms used herein are only for describing specific embodiments, and are not intended to limit the exemplary embodiments according to the present application. For ease of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. The technology, methods and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be regarded as part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as merely exemplary, rather than as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0057] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0058] It should be noted that, in the description of the present application, the orientation or positional relationship indicated by terms such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description. Unless otherwise stated, these orientation words do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the scope of protection of the present application; the orientation words "inside and outside" refer to the inside and outside relative to the contour of each component itself.

[0059] It should be noted that, in the present application, the terms "comprise", "include" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises one..." does not exclude the presence of other identical elements in the process, method, article or device including the element. In addition, it should be noted that the scope of the method and device in the embodiment of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved, for example, the described method may be performed in an order different from that described, and various steps may also be added, omitted, or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0060] Embodiment 1:

[0061] Depend on Figure 1-Figure 3As shown, this embodiment provides an anti-leakage detection device for municipal road drainage pipes, including: a main body 1, wherein sealing structures 2 are symmetrically arranged on both sides of the main body 1, and the sealing structures 2 can fit with the inner wall of the drainage pipe; a driving wheel 3, wherein the driving wheel 3 is arranged below the main body 1, and is used to drive the device to move in the drainage pipe; an air supply component 4, wherein the air supply component 4 is arranged on both sides of the main body 1, and is used to measure the air pressure between the sealing structures 2; an auxiliary structure 5, wherein the auxiliary structure 5 is evenly distributed circumferentially at the outer end of the sealing structure 2, and is symmetrically arranged front to back; wherein, an air pressure sensor 13 is arranged on the main body 1, and is used to detect the air pressure between the sealing structures 2 when the device is working.

[0062] The sealing structure 2 can be fitted with the inner wall of the drain pipe to form a sealed environment for detection, ensuring that the external air is prevented from affecting the detection results during use, and the air supply component 4 can increase the air pressure between the sealing structure 2. The air pressure sensor 13 set on the main body 1 can detect the air pressure change between the sealing structure 2 to reflect whether the drain pipe in the detection section is leaking, which is conducive to improving the detection accuracy. A hydraulic cylinder 11 is set between the driving wheel 3 and the main body 1, which can adjust the distance between the driving wheel 3 and the inner wall of the drain pipe, and the cooperation between the sealing structure 2 and the air supply component 4 makes it easy for the device to detect drain pipes with different inner diameters, which is conducive to improving the applicability of the device.

[0063] Furthermore, the sealing structure 2 includes: a sealing disk 201, which is symmetrically arranged at both ends of the main body 1, and a mounting groove 202 is annularly arranged on the outer wall of the sealing disk 201; a sealing airbag 203, which is arranged in the mounting groove 202; wherein, the sealing airbag 203 is connected to the air supply component 4, and after the sealing airbag 203 is inflated, it can fit against the inner wall of the drain pipe.

[0064] Through the cooperation among the sealing groove, the sealing airbag 203, the sealing disk 201, and the air supply structure, the sealing airbag 203 can be expanded to fit the inner wall of the drain pipe to improve the detection accuracy. Through the cooperation between the sealing airbag 203 and the air supply component 4, it is convenient for the device to detect drain pipes with different inner diameters, which is conducive to improving the applicability of the device.

[0065] Embodiment 2:

[0066] Depend on Figure 1-Figure 3 As shown, this embodiment provides an anti-leakage detection device for municipal road drainage pipes, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0067] Furthermore, the air supply component 4 includes: an air pump, which is symmetrically arranged on both sides of the main body 1, and the air pump is connected to the sealing airbag 203 through a pipe 403; an air inlet pipe 407, an exhaust pipe 402, the air inlet pipe 407 and the exhaust pipe 402 are respectively arranged on the sealing disk 201 on both sides of the main body 1, and are connected to the air pump through a pipe 403; an air outlet pipe 406, the air outlet pipe 406 is arranged on the main body 1, and a valve 405 is provided at the air outlet end of the air inlet pump 404, which is respectively connected to the air outlet pipe 406 and the pipe 403; wherein, the air pumps on both sides of the main body 1 are an air suction pump 401 on one side and an air inlet pump 404 on the other side, and the air inlet pump 404 is connected to the exhaust pipe 402.

[0068] Through the cooperation between the air intake pump 404 and the air intake pipe 407, the sealing airbag 203 can be inflated to expand the sealing airbag 203 to improve the sealing effect, which is convenient for testing drainage pipes with different inner diameters. After the sealing airbag 203 is expanded, the output end of the air intake pump 404 can be changed through the valve 405, and the air pressure between the sealing structure 2 can be increased through the air outlet pipe 406, and the air pressure changes can be observed to confirm whether the drainage pipe is leaking. After the test is completed, through the cooperation between the air pump 401 and the exhaust pipe 402, the air inside the sealing airbag 203 can be extracted to shrink the sealing airbag 203, so as to avoid the friction between the sealing airbag 203 and the inner wall of the drainage pipe when the device moves, which is conducive to extending the service life of the sealing airbag 203.

[0069] Furthermore, the auxiliary structure 5 includes: a fixed block 501, on the outer wall of which electric telescopic rods 502 are evenly distributed circumferentially; a mounting plate 503, which is arranged at the end of the output shaft of the electric telescopic rod 502; a universal wheel 504, which is arranged on the mounting plate 503 and contacts the inner wall of the drain pipe; and a spring 505, which is sleeved on the output shaft of the electric telescopic rod 502 and is arranged between the mounting plate 503 and the electric telescopic rod 502.

[0070] By cooperating among the electric telescopic rod 502, the mounting plate 503, the universal wheel 504 and the spring 505, the stability of the device in the drain pipe can be improved, and the device can be prevented from tilting during movement, which would cause friction between the sealing airbag 203 and the inner wall of the drain pipe, thereby helping to extend the service life of the device.

[0071] Embodiment 3:

[0072] Depend on Figure 1-Figure 4 As shown, this embodiment provides an anti-leakage detection device for municipal road drainage pipes, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0073] Furthermore, a telescopic structure 7 is provided between the main body 1 and the sealing disk 201, and the telescopic structure 7 includes: a cavity 701, which is provided inside the main body 1, and a screw rod 702 is rotatably provided in the cavity 701; an adjusting sleeve 703, which is sleeved on the screw rod 702, one end of which is connected to the sealing disk 201, and the other end of which is slidably provided in the cavity 701 and is threadedly connected to the screw rod 702; a driving motor 705, which is provided on the outer wall of the main body 1, and the output shaft extends into the cavity 701, and a first bevel gear 706 is provided at the end of the output shaft; a second bevel gear 707, which is provided at the end of the screw rod 702 and meshes with the first bevel gear 706; and a guide rod 704, which is symmetrically provided on both sides of the adjusting sleeve 703 to guide the movement of the sealing disk 201.

[0074] The first bevel gear 706 and the second bevel gear 707 can be driven to rotate by the driving motor 705, thereby driving the screw 702 to move between the adjusting sleeve, and the guide rods 704 arranged on both sides of the adjusting sleeve can prevent the sealing disc 201 from rotating when moving, and a limit plate 12 is arranged between the sealing disc 201 and the adjusting sleeve, and the limit plate 12 is connected to the adjusting sleeve through a bearing. After the device detects a leak in a longer form, the detection range can be further reduced by adjusting the distance between the sealing structures 2, which is conducive to improving the detection efficiency.

[0075] Furthermore, a spraying structure 6 is provided above the main body 1, and the spraying structure 6 includes: a receiving groove 601, which is provided above the main body 1 and is used to hold the pigment, and a sealing plate 602 is provided on the top of the receiving groove 601; a pump body 604, which is provided inside the receiving groove 601, and an atomizing nozzle 603 is provided on the top of the sealing plate 602; wherein the pump body 604 and the atomizing nozzle 603 are connected via a connecting pipe 605.

[0076] By cooperating among the receiving groove 601, the atomizing nozzle 603, the pump body 604 and the sealing plate 602, after the existence of a gap in the drain pipe has been detected, the paint in the receiving groove 601 can be sprayed out through the atomizing nozzle 603, wherein the atomized paint will be sprayed outward from the gap along the direction of the airflow, resulting in a darker color of the paint in the gap, making it easier for the operator to identify the specific location of the gap, avoiding the operator from missing smaller gaps, and helping to improve the accuracy of the detection.

[0077] Furthermore, a pan-tilt platform 10 is provided on one end surface of the auxiliary structure 5 , and a camera 9 is provided on the pan-tilt platform 10 .

[0078] The cooperation between the pan / tilt platform 10 and the camera 9 can facilitate the operator to observe larger gaps, which is beneficial to improving the efficiency of detection.

[0079] Furthermore, a shielding cover 8 is installed on the outer side of the camera 9, and the shielding cover 8 is transparent.

[0080] The shielding cover 8 can protect the camera 9 and the pan / tilt head 10 , which is beneficial to prolonging the service life of the camera 9 and the pan / tilt head 10 .

[0081] The embodiments of the present application are described above in conjunction with the accompanying drawings. In the absence of conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. A leakage detection device for municipal road drainage pipes, characterized in that ,include: A body (1), wherein sealing structures (2) are symmetrically arranged on both sides of the body (1), and the sealing structures (2) can be fitted with the inner wall of the drainage pipe; A driving wheel (3), the driving wheel (3) being arranged below the body (1) and used for driving the device to move in the drainage pipe; An air supply component (4) is arranged on both sides of the body (1) to seal the air pressure between the structures (2). The air supply component (4) comprises: An air pump, the air pump being symmetrically arranged on both sides of the body (1), and the air pump being connected to the sealing airbag (203) via a pipeline (403); An air intake pipe (407) and an exhaust pipe (402), wherein the air intake pipe (407) and the exhaust pipe (402) are respectively arranged on the sealing disks (201) on both sides of the body (1), and are connected to the air pump via a pipeline (403); An air outlet pipe (406), wherein the air outlet pipe (406) is arranged on the main body (1), and a valve (405) is arranged at the air outlet end of the air intake pump (404), which is respectively connected to the air outlet pipe (406) and the pipeline (403); Wherein, the air pumps on both sides of the body (1) are an air extraction pump (401) on one side and an air intake pump (404) on the other side, and the air intake pump (404) is connected to the exhaust pipe (402); Auxiliary structures (5), the auxiliary structures (5) are evenly distributed in the circumferential direction at the outer end of the sealing structure (2) and are symmetrically arranged front to back; The main body (1) is provided with an air pressure sensor (13) for detecting the air pressure between the sealing structure (2) when the device is working. The sealing structure (2) comprises: A sealing disk (201), wherein the sealing disk (201) is symmetrically arranged at two ends of the body (1), and a mounting groove (202) is annularly arranged on the outer wall of the sealing disk (201); A sealing airbag (203), wherein the sealing airbag (203) is arranged in the mounting groove (202); The sealing airbag (203) is connected to the air supply assembly (4), and after the sealing airbag (203) is inflated, it can fit against the inner wall of the drainage pipe.

2. The anti-leakage detection device for municipal road drainage pipes according to claim 1, characterized in that: The auxiliary structure (5) comprises: A fixed block (501), wherein electric telescopic rods (502) are evenly distributed circumferentially on the outer wall of the fixed block (501); A mounting plate (503), wherein the mounting plate (503) is arranged at the end of the output shaft of the electric telescopic rod (502); A universal wheel (504), wherein the universal wheel (504) is arranged on the mounting plate (503) and is in contact with the inner wall of the drain pipe; A spring (505) is sleeved on the output shaft of the electric telescopic rod (502) and is arranged between the mounting plate (503) and the electric telescopic rod (502).

3. The anti-leakage detection device for municipal road drainage pipes according to claim 1, characterized in that: A telescopic structure (7) is provided between the main body (1) and the sealing disk (201).

4. The anti-leakage detection device for municipal road drainage pipes according to claim 3, characterized in that: The telescopic structure (7) comprises: A cavity (701), wherein the cavity (701) is arranged inside the body (1), and a screw rod (702) is rotatably arranged in the cavity (701); An adjusting sleeve (703), wherein the adjusting sleeve (703) is sleeved on the screw rod (702), one end of the adjusting sleeve is connected to the sealing disk (201), and the other end is slidably disposed in the cavity (701) and is threadedly connected to the screw rod (702); A driving motor (705), wherein the driving motor (705) is arranged on the outer wall of the body (1), and the output shaft extends into the cavity (701), and a first bevel gear (706) is arranged at the end of the output shaft; A second bevel gear (707), the second bevel gear (707) being arranged at the end of the screw rod (702) and meshing with the first bevel gear (706); The guide rods (704) are symmetrically arranged on both sides of the adjustment sleeve (703) to guide the movement of the sealing disk (201).

5. The anti-leakage detection device for municipal road drainage pipes according to claim 1, characterized in that: A spraying structure (6) is arranged above the body (1), and the spraying structure (6) comprises: A containing groove (601), the containing groove (601) is arranged above the main body (1) and is used to contain the pigment, and a sealing plate (602) is arranged on the top of the containing groove (601); A pump body (604), wherein the pump body (604) is arranged inside the containing tank (601), and an atomizing nozzle (603) is arranged on the top of the sealing plate (602); The pump body (604) and the atomizing nozzle (603) are connected via a connecting pipe (605).

6. The anti-leakage detection device for municipal road drainage pipes according to claim 1, characterized in that: A pan / tilt platform (10) is arranged on one end surface of the auxiliary structure (5), and a camera (9) is arranged on the pan / tilt platform (10).

7. The anti-leakage detection device for municipal road drainage pipes according to claim 6, characterized in that: A shielding cover (8) is installed on the outside of the camera (9), and the shielding cover (8) is transparent.

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