Drainage pipe leak detection structure

Abstract

The application relates to the technical field of leakage detection, in particular to a drainage pipeline leakage detection structure. The drainage pipeline leakage detection structure comprises a connecting support, a pipeline supporting part, a walking unit and a leakage detection unit. The pipeline supporting part is in the shape of an annulus with one side open. Two pipeline supporting parts are symmetrically and fixedly arranged at the two ends of the length direction of the connecting support, and each pipeline supporting part can accommodate the pipeline through the opening and can abut against the outer circumferential surface of the pipeline in the axial direction. The walking unit and the leakage detection unit are fixed on the connecting support. The walking unit can contact the outer circumferential surface of the pipeline and drive the connecting support to move in the axial direction. The leakage detection unit can form an annular sealing space with the outer circumferential surface of the pipeline and detect the leakage of the annular sealing space. The drainage pipeline leakage detection structure does not need to disassemble the pipeline, and can move along the pipeline through the walking unit, so that the detection efficiency is higher.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of leakage detection, in particular to a drainage pipeline leakage detection structure. BACKGROUND

[0002] The drainage pipeline refers to the system composed of pipes and channels and its auxiliary facilities for collecting and discharging sewage, waste water and rainwater. The system includes main pipes, branch pipes and pipelines leading to treatment plants, no matter where they are built, as long as they play a role in drainage, they should be counted as drainage pipelines. After the surface of the drainage pipeline appears cracks and leaks, the pipeline needs to be detected for leakage.

[0003] The patent application with publication number CN115950606A discloses a heating pipeline leakage detection device. Although this detection device can realize pipeline leakage detection, it needs to disassemble the pipeline before performing specific detection operation, which leads to time-consuming disassembly operation in the early stage. Meanwhile, when facing the leakage detection of long pipelines, the detection device needs to be repeatedly adjusted in position for detecting different positions of the pipeline, which is time-consuming. In addition, in cold winter weather, the pipeline may be frozen, and the ice layer attached to the outer wall may block the cracks, resulting in leakage detection error. SUMMARY

[0004] In order to solve the above technical problems, the present application provides a drainage pipeline leakage detection structure which can improve the detection efficiency.

[0005] The present application adopts the following technical solutions:

[0006] The present application provides a drainage pipeline leakage detection structure, which comprises a connecting bracket, a pipeline support component, a walking unit and a leakage detection unit. The pipeline support component is in the shape of an open ring. Two pipeline support components are symmetrically and fixedly arranged at both ends of the length direction of the connecting bracket, and each pipeline support component can accommodate the pipeline through the opening and can abut against the outer circumferential surface of the pipeline in the axial direction. The walking unit and the leakage detection unit are fixed on the connecting bracket. The walking unit can contact the outer circumferential surface of the pipeline and drive the connecting bracket to move in the axial direction. The leakage detection unit can form an annular sealing space with the outer circumferential surface of the pipeline and detect the leakage of the annular sealing space.

[0007] Preferably, the pipeline support component comprises a ring-shaped fixing frame and a telescopic support. The top end of the ring-shaped fixing frame is fixed to the bottom of the connecting bracket, and the bottom end of the ring-shaped fixing frame is provided with an opening. A plurality of telescopic supports are fixed on the inner wall of the ring-shaped fixing frame in a ring shape and at equal intervals. A freely rotatable rolling ball is arranged on the telescopic end of each telescopic support.

[0008] Preferably, the walking unit comprises a fixed support, a walking wheel and a driving motor, the fixed support is fixed at the bottom of the connecting support, the walking wheel is rotatably installed at the bottom of the fixed support, and the driving motor is installed on the side wall of the fixed support, and the driving shaft of the driving motor is axially fixed with the rotating shaft of the walking wheel.

[0009] Preferably, the leakage detection unit comprises a fixed shell, a sliding assembly, a semicircular sealing assembly and a pressurization detection assembly, the fixed shell is arranged at the bottom of the connecting support, the two sliding assemblies are symmetrically arranged in the fixed shell and can reciprocate along the length direction of the fixed shell, and a connecting plate frame is installed below each sliding assembly and extends out of the fixed shell, the two semicircular sealing assemblies are fixed on the two connecting plate frames respectively, the openings of the two semicircular sealing assemblies are oppositely arranged and can form an annular sealing space after being attached to the outer circumferential surface of the pipeline, and the pressurization detection assembly is arranged outside the semicircular sealing assembly and communicates with the inner wall of the semicircular sealing assembly.

[0010] Preferably, two sliding spaces are symmetrically arranged in the fixed shell, and a strip-shaped sliding groove communicating with the outside is arranged below each sliding space, the two sliding assemblies are symmetrically arranged in the two sliding spaces, the sliding assembly comprises a servo motor, a threaded rod and a limiting sliding block, the servo motor is installed at the inner wall of one side of the sliding space, the output shaft of the servo motor is fixedly connected with one end of the threaded rod, the other end of the threaded rod is rotatably arranged on the inner wall of the other side of the sliding space, the limiting sliding block is rotatably arranged on the threaded rod, the connecting plate frame is fixed on the limiting sliding block, and the connecting plate frame extends out of the sliding space and is accommodated in the strip-shaped sliding groove.

[0011] Preferably, the pressurization detection assembly comprises a fixed cylinder and a circular shell, the fixed cylinder is fixed outside the semicircular sealing assembly and communicates with the inner wall of the semicircular sealing assembly, the circular shell is fixed on the side of the fixed cylinder away from the semicircular sealing assembly and communicates with the fixed cylinder, a piston is slidably arranged in the inner cavity of the fixed cylinder, a positioning plate and a moving block are slidably arranged in the inner cavity of the circular shell, the positioning plate and the moving block are kept apart and connected by a spring, a connecting rod is arranged at the communication position of the fixed cylinder and the circular shell, the positioning plate is fixedly connected with one end of the connecting rod, the piston is fixedly connected with the other end of the connecting rod, a spiral rod is rotatably arranged at the end of the circular shell away from the fixed cylinder and extends out of the circular shell, one end of the spiral rod is rotatably connected with the moving block, and the other end of the spiral rod is fixedly connected with a rotating handle.

[0012] Preferably, the ice layer cleaning unit is further arranged on the connecting support and located outside the two pipeline supporting components.

[0013] Preferably, the ice layer cleaning unit comprises a connecting support frame, an arc-shaped shell, a ring-shaped frame and an ice breaking part, the connecting support frame is fixed on the connecting support, the arc-shaped shell is fixed at one end of the connecting support frame away from the connecting support, the outer circle side of the ring-shaped frame is uniformly provided with a tooth groove, and an opening is formed on one side of the ring-shaped frame, the one side of the ring-shaped frame is arranged in the arc-shaped accommodation groove of the arc-shaped shell, two synchronous rotating rotating motors are respectively installed on the outer walls on both sides of the arc-shaped shell, the drive shaft of each rotating motor penetrates the arc-shaped accommodation groove and is engaged with the tooth groove through a gear, and a plurality of ice breaking parts are fixed on the inner circle side wall of the ring-shaped frame at equal intervals in a ring shape, the ice breaking part has a heating function and can extend to the outer surface of the pipeline.

[0014] Preferably, the ice breaking part comprises an outer connecting arm, an inner connecting arm, a limiting spring and a fixed cross frame, the outer connecting arm is fixed on the inner circle side wall of the ring-shaped frame, the outer connecting arm and the inner connecting arm are both provided with a recess extending inward at one end, the limiting spring and one end of the inner connecting arm are both arranged in the recess of the outer connecting arm, one end of the limiting spring abuts against the outer connecting arm, the other end of the limiting spring penetrates the recess of the inner connecting arm and abuts against the inner connecting arm, and the fixed cross frame is fixed at the end of the inner connecting arm penetrating out of the outer connecting arm, the ice breaking claws are rotatably connected to the two sides of the fixed cross frame, and the reed is fixed to the two side walls of the penetrating end of the inner connecting arm.

[0015] Preferably, the ice breaking part further comprises a lateral frame and a cleaning brush, the lateral frame is fixed to the side wall of the fixed cross frame, and the cleaning brush is fixed to the bottom surface of the lateral frame and can clean the ice chips on the outer surface of the pipeline.

[0016] Compared with the prior art, the beneficial effects of the present application are:

[0017] When the drainage pipeline leakage detection structure is in use, the pipeline support part can be fixed on the pipeline, and the pipeline can be externally detected by the leakage detection unit, without the need to disassemble the pipeline, so that the detection is convenient and flexible; meanwhile, the walking unit can move along the pipeline to facilitate the leakage detection of each position of the pipeline, and the drainage pipeline leakage detection structure of the present application obviously has higher detection efficiency compared with the pipeline leakage detection equipment in the prior art. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is the use state schematic diagram of the drainage pipeline leakage detection structure in the embodiment of the present application.

[0019] Figure 2 is the first perspective view of the overall structure of the drainage pipeline leakage detection structure in the embodiment of the present application.

[0020] Figure 3 is the front view of the drainage pipeline leakage detection structure in the embodiment of the present application.

[0021] Figure 4 is a second perspective view of the overall structure of the drain pipe leakage detection structure in an embodiment of the present application.

[0022] Figure 5 is a structure diagram of the upper telescopic support of the drain pipe leakage detection structure in an embodiment of the present application.

[0023] Figure 6 is a structure diagram of the leakage detection unit of the drain pipe leakage detection structure in an embodiment of the present application.

[0024] Figure 7 is a structure diagram of the leakage detection unit of the drain pipe leakage detection structure in an embodiment of the present application.

[0025] Figure 8 is Figure 7 is a local enlarged diagram of A in FIG.

[0026] Figure 9 is a structure diagram of the ice layer cleaning unit of the drain pipe leakage detection structure in an embodiment of the present application.

[0027] Figure 10 is a structure diagram of the ice layer cleaning unit of the drain pipe leakage detection structure in an embodiment of the present application.

[0028] Figure 11 is a structure diagram of the ice breaking part of the drain pipe leakage detection structure in an embodiment of the present application.

[0029] Figure 12 is a structure diagram of the ice breaking part of the drain pipe leakage detection structure in an embodiment of the present application.

[0030] Figure 13 is a structure diagram of the ice breaking claw of the drain pipe leakage detection structure in an embodiment of the present application.

[0031] Figure 14 is a structure diagram of the heating resistance wire of the drain pipe leakage detection structure in an embodiment of the present application.

[0032] In which, the reference signs are explained as follows:

[0033] 1, pipe 5095, positioning plate

[0034] 2, connecting bracket 5096, spring

[0035] 3, pipe support part 5097, moving block

[0036] 301, annular fixing frame 5098, screw rod

[0037] 302 electric cylinder 5099 rotating handle

[0038] 303 circular fixing seat 6 ice layer cleaning unit

[0039] 304 rolling ball 601 connecting support frame

[0040] 4 walking unit 602 arc-shaped shell

[0041] 401 fixing support 603 annular frame

[0042] 402 walking wheel 604 tooth groove

[0043] 403 driving motor 605 rotating motor

[0044] 5 leakage detection unit 606 gear

[0045] 501 fixing shell 607 ice breaking part

[0046] 502 connecting plate frame 608 outer connecting arm

[0047] 503 limiting sliding block 609 inner connecting arm

[0048] 504 servo motor 610 fixing cross frame

[0049] 505 threaded rod 611 ice breaking claw

[0050] 506 arc-shaped baffle 6111 claw body

[0051] 507 rubber air bag pad 6112 ice breaking tooth

[0052] 508 semicircular sleeve 6113 sharp part

[0053] 509 pressure detection assembly 612 reed

[0054] 5091 fixing cylinder 613 lateral frame

[0055] 5092 piston 614 cleaning brush

[0056] 5093 connecting rod 615 limiting spring

[0057] 5094 circular shell 616 heating resistance wire DETAILED DESCRIPTION

[0058] The specific embodiments of the present application will be further described in detail below with reference to the accompanying drawings. These embodiments are only used to illustrate the present application, and are not intended to limit the present application.

[0059] In the description of the present application, it should be noted that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, which are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0060] In the description of the present application, it should be noted that unless otherwise specified and limited, the terms "mounting", "connecting", "connecting" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integral connection; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through intermediate medium, or the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0061] In addition, in the description of the present application, unless otherwise stated, the meaning of "a plurality of" is two or more.

[0062] Referring to Figure 1 and Figure 2 , the embodiment provides a drainage pipeline leakage detection structure, which comprises a connecting bracket 2, a pipeline support part 3, a walking unit 4 and a leakage detection unit 5. The pipeline support part 3 is an annular shape with one side opening. Two pipeline support parts 3 are symmetrically and fixedly spaced apart at the two ends of the length direction of the connecting bracket 2. Each pipeline support part 3 can accommodate the pipeline 1 through the opening and abut against the outer peripheral surface of the pipeline 1 in the axial direction. The walking unit 4 and the leakage detection unit 5 are fixed on the connecting bracket 2. The walking unit 4 can contact the outer peripheral surface of the pipeline 1 and drive the connecting bracket 2 to move in the axial direction. The leakage detection unit 5 can form an annular sealing space with the outer peripheral surface of the pipeline 1 and detect the leakage of the annular sealing space.

[0063] Referring to Figure 1 and Figure 2 , the drainage pipeline leakage detection structure of the embodiment can be fixed on the pipeline 1 by the pipeline support part 3 during use, and then the pipeline 1 can be externally detected by the leakage detection unit 5. The pipeline 1 does not need to be disassembled, and the detection is convenient and flexible. At the same time, the walking unit 4 can move along the pipeline 1 to facilitate the leakage detection of each position of the pipeline 1. Compared with the pipeline leakage detection equipment in the prior art, the drainage pipeline leakage detection structure of the present application has obviously higher detection efficiency.

[0064] Preferably, referring to Figure 3 and Figure 4 , the pipeline supporting component 3 comprises an annular fixing frame 301 and telescopic supports, the top end of the annular fixing frame 301 is fixed at the bottom of the connecting bracket 2, the bottom end of the annular fixing frame 301 is provided with an opening, a plurality of telescopic supports are fixed on the inner wall of the annular fixing frame 301 in equal intervals in a ring shape, and a freely rotatable rolling ball 304 is provided on the telescopic end of each telescopic support.

[0065] Referring to Figure 4 , when it is needed to install the drainage pipeline leakage detection structure of the present embodiment on the pipeline 1, the annular fixing frame 301 can be sleeved on the pipeline 1 from the opening, and then the plurality of telescopic supports are controlled to extend towards the pipeline 1 until the rolling ball 304 on each telescopic support abuts against the outer circumferential surface of the pipeline 1, thereby realizing the installation of the drainage pipeline leakage detection structure of the present embodiment, and the setting of the rolling ball 304 also enables the drainage pipeline leakage detection structure of the present embodiment to have the ability to walk along the outer surface of the pipeline 1.

[0066] Preferably, referring to Figure 4 and Figure 5 , in the present embodiment, the telescopic support comprises an electric cylinder 302 and a circular fixing seat 303, a plurality of electric cylinders 302 are fixed on the inner wall of the annular fixing frame 301 in equal intervals in a ring shape, and a circular fixing seat 303 is installed on the telescopic end of each electric cylinder 302, the end of the circular fixing seat 303 away from the electric cylinder 302 is concave to form a circular inner cavity, and the rolling ball 304 is freely rotatably embedded in the circular inner cavity and protrudes out of the circular inner cavity. When it is needed to control the telescopic support to extend or retract, the telescopic end of the electric cylinder 302 is controlled to extend or retract, thereby realizing the adjustment of the position of the rolling ball 304, and finally enabling the rolling ball 304 to contact and abut against the outer surface of the pipeline 1.

[0067] Preferably, referring to Figure 3 and Figure 4 , the walking unit 4 comprises a fixing bracket 401, a walking wheel 402 and a driving motor 403, the fixing bracket 401 is fixed at the bottom of the connecting bracket 2, the walking wheel 402 is rotatably installed at the bottom of the fixing bracket 401, the driving motor 403 is installed on the side wall of the fixing bracket 401, and the driving shaft of the driving motor 403 is axially fixed with the rotating shaft of the walking wheel 402.

[0068] Referring to Figure 3 and Figure 4When the pipe supporting part 3 is arranged on the outer surface of the pipe 1 and adjusted to contact the walking wheel 402 with the outer surface of the pipe 1, the driving motor 403 is controlled to work to drive the walking wheel 402 to rotate, so that the drain pipe leakage detection structure of the embodiment is moved on the outer surface of the pipe 1 by the rotation of the walking wheel 402, so as to detect the leakage at different positions of the pipe 1, which is convenient to move and solves the trouble of manually adjusting the position of the common leakage detection equipment in the prior art when detecting different positions of the pipe 1.

[0069] Preferably, referring to Figure 6 , the leakage detection unit 5 comprises a fixed shell 501, a sliding assembly, a semicircular sealing assembly and a pressurized detection assembly 509, the fixed shell 501 is arranged at the bottom of the connecting bracket 2, two sliding assemblies are symmetrically arranged in the fixed shell 501 and can reciprocate along the length direction of the fixed shell 501, and a connecting plate frame 502 is arranged below each sliding assembly and extends out of the fixed shell 501, two semicircular sealing assemblies are fixed on the two connecting plate frames 502 respectively, the openings of the two semicircular sealing assemblies are arranged opposite to each other and can form an annular sealing space after being attached to the outer circumferential surface of the pipe 1, and the pressurized detection assembly 509 is arranged outside the semicircular sealing assembly and communicates with the inner wall of the semicircular sealing assembly.

[0070] When it is necessary to seal and detect the to-be-detected part of the pipe 1, first, the two sliding assemblies are controlled to move towards each other, so that the two semicircular sealing assemblies move towards each other and are attached to the outer circumferential surface of the pipe 1 to form an annular sealing space, and then the pressurized detection assembly 509 is used to pressurize the annular sealing space, and whether there is a crack at the to-be-detected position is determined by detecting the pressure change.

[0071] Preferably, referring to Figure 6 In the embodiment, the semicircular sealing assembly comprises a semicircular sleeve 508, an arc-shaped baffle 506 and a rubber air bag pad 507, the semicircular sleeve 508 is fixed on the connecting plate frame 502, the two arc-shaped baffles 506 are fixed on the two arc-shaped edges of the inner wall of the semicircular sleeve 508 respectively, the side surface of the arc-shaped baffle 506 away from the semicircular sleeve 508 is a semicircular arc surface, and the rubber air bag pad 507 is attached to the semicircular arc surface.

[0072] Referring to Figure 6 After the two semicircular sealing assemblies move towards each other and are attached to the outer circumferential surface of the pipe 1, the arc-shaped baffle 506 on each semicircular sealing assembly is tightly attached to the outer circumferential surface of the pipe 1 through the rubber air bag pad 507, so as to form an annular sealing space; the arrangement of the rubber air bag pad 507 can greatly improve the sealing effect, so that the annular sealing space has good sealing performance, so as to successfully pressurize the annular sealing space through the pressurized detection assembly 509.

[0073] Preferably, referring to Figure 7 Two sliding spaces are symmetrically arranged in the fixed shell 501, and a strip-shaped sliding groove is arranged below each sliding space and communicates with the outside. Two sliding assemblies are symmetrically arranged in the two sliding spaces. The sliding assembly comprises a servo motor 504, a threaded rod 505 and a limiting slide block 503. The servo motor 504 is installed at the inner wall of one side of the sliding space. The output shaft of the servo motor 504 is fixedly connected with one end of the threaded rod 505. The other end of the threaded rod 505 is rotatably arranged on the inner wall of the other side of the sliding space. The limiting slide block 503 is rotatably arranged on the threaded rod 505. The connecting plate frame 502 is fixed on the limiting slide block 503. The connecting plate frame 502 penetrates out of the sliding space and is accommodated in the strip-shaped sliding groove. When the sealing detection of the to-be-detected part of the pipeline 1 is needed, the threaded rod 505 is driven to rotate by the servo motor 504, so that the limiting slide block 503 moves along the threaded rod 505, and the semi-circular sealing assembly is synchronously driven to move by the connecting plate frame 502, so that the two semi-circular sealing assemblies move towards each other.

[0074] Preferably, referring to Figure 8 The pressurization detection assembly 509 comprises a fixed cylinder 5091 and a circular shell 5094. The fixed cylinder 5091 is fixed outside the semi-circular sealing assembly and communicates with the inner wall of the semi-circular sealing assembly. The circular shell 5094 is fixed on the side of the fixed cylinder 5091 away from the semi-circular sealing assembly and communicates with the fixed cylinder 5091. The inner cavity of the fixed cylinder 5091 slidably accommodates a piston 5092. The inner cavity of the circular shell 5094 slidably accommodates a positioning plate 5095 and a moving block 5097. The positioning plate 5095 and the moving block 5097 are spaced apart and connected by a spring 5096. A connecting rod 5093 penetrates through the communication part of the fixed cylinder 5091 and the circular shell 5094. The positioning plate 5095 is fixedly connected with one end of the connecting rod 5093. The piston 5092 is fixedly connected with the other end of the connecting rod 5093. A screw rod 5098 is rotatably arranged at the end of the circular shell 5094 away from the fixed cylinder 5091 and penetrates out of the circular shell 5094. One end of the screw rod 5098 is rotatably connected with the moving block 5097. The other end of the screw rod 5098 is fixedly connected with a rotating handle 5099.

[0075] Referring to Figure 8When the two semi-circular sealing assemblies move towards each other and are attached to the outer circumferential surface of the pipeline 1 to form an annular sealing space, the rotating handle 5099 is manually screwed in to drive the moving block 5097 to move towards the spring 5096. The spring 5096 is continuously compressed under the pushing of the moving block 5097, and thus a continuously increasing elastic force is applied to the positioning plate 5095, so as to exert a continuous pushing force on the piston 5092. If the outer surface of the pipeline 1 is normal and does not leak, the piston 5092 will be extruded by the gas in the annular sealing space. At a certain moment, the reaction force of the gas on the piston 5092 will be equal to or greater than the force for screwing in the piston 5092, so that the rotating handle 5099 cannot be continuously screwed in, and the piston 5092 has not yet moved to contact the side wall of the fixed cylinder 5091. If there is a crack on the outer surface of the pipeline 1, the annular sealing space will not be substantially closed, and the piston 5092 will be able to smoothly move to contact the side wall of the fixed cylinder 5091 under the screwing of the rotating handle 5099. Thus, the operator can determine whether there is a crack leakage phenomenon at the detection position, which is simple and convenient to operate and rapid in judgment.

[0076] Preferably, in the embodiment, the outer wall of the circular shell 5094 is provided with an observation window through which the inside of the circular shell 5094 can be observed, so that the operator can more intuitively observe the position of the piston 5092 and improve the judgment accuracy.

[0077] Preferably, referring to Figure 1 and Figure 2 The pipeline leakage detection structure of the embodiment further comprises an ice layer cleaning unit 6, which is fixed on the connecting bracket 2 and located outside the two pipeline support parts 3.

[0078] The ice layer cleaning unit 6 can clean the ice layer on the outer surface of the pipeline 1 while the walking unit 4 drives the pipeline leakage detection structure of the embodiment to move along the outer surface of the pipeline 1, which is particularly suitable for use in cold weather and avoids the problem that the ice layer attached to the outer surface of the pipeline 1 makes it difficult to detect the crack.

[0079] Preferably, referring to Figure 9 and Figure 10The ice layer cleaning unit 6 comprises a connecting support frame 601, an arc-shaped shell 602, a ring-shaped frame 603 and ice breaking parts 607. The connecting support frame 601 is fixed on the connecting support 2. The arc-shaped shell 602 is fixed on the end of the connecting support frame 601 away from the connecting support 2. The outer side of the ring-shaped frame 603 is uniformly provided with tooth grooves 604. An opening is formed on one side of the ring-shaped frame 603. The one side of the ring-shaped frame 603 is arranged in the arc-shaped accommodating groove of the arc-shaped shell 602. Two synchronous rotating rotating motors 605 are respectively arranged on the outer walls on the two sides of the arc-shaped shell 602. The drive shafts of the rotating motors 605 are respectively arranged in the arc-shaped accommodating groove and are engaged with the tooth grooves 604 through gears 606. The ice breaking parts 607 are fixed on the inner side wall of the ring-shaped frame 603 in a ring shape and at equal intervals. The ice breaking parts 607 have a heating function and can extend to the outer surface of the pipeline 1.

[0080] Referring to Figure 9 and Figure 10 When it is cold in winter, the outer surface of the pipeline 1 is easy to form an ice layer, thereby blocking the cracks, so that the cracks are difficult to be fully detected, and the detection omission error phenomenon is caused. The ice layer cleaning unit 6 drives the gears 606 to rotate through the work of the rotating motor 605, thereby driving the ring-shaped frame 603 to rotate around the axis through the gear transmission, and further driving the ice breaking parts 607 to rotate on the outer surface of the pipeline 1, so that the ice layer on the outer surface of the pipeline 1 is cleaned.

[0081] Preferably, referring to Figure 11 and Figure 12 The ice breaking part 607 comprises an outer connecting arm 608, an inner connecting arm 609, a limiting spring 615 and a fixed cross frame 610. The outer connecting arm 608 is fixed on the inner side wall of the ring-shaped frame 603. The outer connecting arm 608 and the inner connecting arm 609 are both provided with recesses extending inward at one end. The limiting spring 615 and one end of the inner connecting arm 609 are arranged in the recess of the outer connecting arm 608. One end of the limiting spring 615 abuts against the outer connecting arm 608. The other end of the limiting spring 615 is arranged in the recess of the inner connecting arm 609 and abuts against the inner connecting arm 609. The fixed cross frame 610 is fixed on the end of the inner connecting arm 609 out of the outer connecting arm 608. The fixed cross frame 610 is rotatably connected with ice breaking claws 611 on the two sides. The two side walls of the end of the inner connecting arm 609 are fixed with reeds 612. The ice breaking claws 611 are fixedly connected with the reeds 612.

[0082] Referring to Figure 11 and Figure 12When the ice and snow on the outer surface of the pipeline 1 needs to be removed, the fixing cross frame 610 and the ice breaking claw 611 can be effectively attached to the outer surface of the pipeline 1 by the elastic force of the limiting spring 615, and the ice breaking claw 611 has a downward pressure in the direction of the pipeline 1 by the setting of the reed 612, so that the ice breaking claw 611 is fully attached to the outer surface of the pipeline 1, which can protect the pipeline 1 while removing the ice layer, avoid knocking and vibrating the pipeline 1, and reduce the problem of pipeline 1 damage caused by vibration.

[0083] Preferably, referring to Figure 13 In this embodiment, the ice breaking claw 611 includes a claw body 6111 and ice breaking teeth 6112, the claw body 6111 is arc-shaped, and a plurality of ice breaking teeth 6112 are arranged in parallel and at intervals on the claw body 6111, and a sharp part 6113 for breaking ice is arranged at the front end of each ice breaking tooth 6112. When the claw body 6111 is attached to the outer surface of the pipeline 1, the arc-shaped structure can fully attach to the arc-shaped outer periphery of the pipeline 1, which is more suitable for use on the pipeline 1 than ordinary ice removal structures. Further, the sharp part 6113 is arranged at the front end of the ice breaking tooth 6112, and the sharp part 6113 moves along the arc, effectively avoiding damage to the pipeline 1.

[0084] Specifically, referring to Figure 14 In this embodiment, the ice breaking claw 611 is made of heat-conducting metal, and a heating resistance wire 616 is embedded and installed in the ice breaking claw 611. By arranging the heating resistance wire 616, the ice breaking claw 611 can be heated, so that the attached part is heated and treated when the ice breaking claw 611 is attached to the outer wall of the pipeline 1, thereby heating and melting the fine solidified ice in the gap of the pipeline 1, further avoiding the detection error phenomenon caused by ice blockage.

[0085] Preferably, referring to Figure 11 The ice breaking part 607 further includes a lateral frame 613 and a cleaning brush 614, the lateral frame 613 is fixed to the side wall of the fixing cross frame 610, and the cleaning brush 614 is fixed to the bottom surface of the lateral frame 613 and can clean the ice chips on the outer surface of the pipeline 1. After the ice layer is broken and cleaned by the rotation of the ice breaking claw 611, the rotation of the ice breaking part 607 can also drive the cleaning brush 614 to rotate, thereby further cleaning the ice residues and foreign matters attached to the outer surface of the pipeline 1 by the rotation of the cleaning brush 614, achieving good cleaning effect, reducing the phenomenon of continuous and repeated icing caused by ice residues, and being particularly suitable for use on the pipeline with surface icing in winter.

[0086] The above merely describes the preferred embodiments of the present application, and it should be pointed out that, for those skilled in the art, several improvements and replacements can be made without departing from the technical principles of the present application, and these improvements and replacements should also be considered as the protection scope of the present application.

Claims

1. A drainage pipe leakage detection structure, characterized in that: The invention comprises a connecting bracket, a pipe support component, a walking unit and a leakage detection unit. The pipe support component is annular with an opening on one side. Two pipe support components are symmetrically fixed at both ends of the connecting bracket in the length direction. Each pipe support component can accommodate the pipe through the opening and can move axially to abut against the outer peripheral surface of the pipe. The walking unit and the leakage detection unit are both fixed to the connecting bracket. The walking unit can contact the outer peripheral surface of the pipe and drive the connecting bracket to move axially. The leakage detection unit can fit the outer peripheral surface of the pipe to form an annular sealed space and perform leakage detection on the annular sealed space. The leakage detection unit includes a fixed shell, a sliding component, a semicircular sealing component and a pressurized detection component; The cam is fixed on the side of the fixing cylinder away from the fixing cylinder and is connected to the inner wall of the fixing cylinder, the cam is fixed on the side of the fixing cylinder away from the fixing cylinder and is connected to the fixing cylinder, a piston is slidably provided in the inner cavity of the fixing cylinder, a positioning plate and a moving block are slidably provided in the inner cavity of the circular shell, the positioning plate and the moving block are kept spaced apart and connected by a spring, a connecting rod is passed through the connection between the fixing cylinder and the circular shell, and the positioning plate is fixedly connected to one end of the connecting rod, the piston is fixedly connected to the other end of the connecting rod, a spiral rod is rotated on one end of the circular shell away from the fixing cylinder and passes through the circular shell, one end of the spiral rod is rotatably connected to the moving block, and the other end of the spiral rod is fixed with a rotating handle; When the two semicircular sealing components fit with the outer circumference of the pipe to form an annular sealing space, the moving block is driven to move in the direction of the spring by manually screwing in the rotating handle. The spring is continuously compressed under the push of the moving block, thereby generating an increasing elastic force to act on the positioning plate, thereby applying a continuous thrust to the piston. If the outer surface of the pipe is normally leaking, as the piston squeezes the gas in the annular sealing space, at a certain moment, the reaction force of the gas on the piston will be equal to or exceed the force of screwing in the piston, resulting in the inability to continue manually screwing in the rotating handle, and the piston has not yet moved to contact the side wall of the fixed cylinder; if there is a leaking crack on the outer surface of the pipe, the annular sealing space will be essentially no longer airtight, and the piston will be able to move smoothly to contact the side wall of the fixed cylinder under the screwing in of the rotating handle. Therefore, the operator can determine whether there is a crack leak in the part to be inspected; The ice-clearing unit includes an ice-breaking portion, wherein the ice-breaking portion includes a fixed horizontal frame, and ice-breaking claws are rotatably connected to both sides of the fixed horizontal frame; The ice breaking part also includes a lateral frame and a cleaning brush. The lateral frame is fixed to the side wall of the fixed horizontal frame. The cleaning brush is fixed to the bottom surface of the lateral frame and can clean ice chips on the outer surface of the pipeline.

2. The drainage pipe leakage detection structure according to claim 1, characterized in that: The pipeline support component includes an annular fixing frame and a telescopic support member. The top end of the annular fixing frame is fixed to the bottom of the connecting bracket. The bottom end of the annular fixing frame is provided with an opening. A plurality of telescopic support members are fixed on the inner wall of the annular fixing frame at equal intervals in the annular direction, and a freely rotatable rolling ball is protruded outwardly on the telescopic end of each telescopic support member.

3. The drainage pipe leakage detection structure according to claim 1, characterized in that: The walking unit includes a fixed bracket, a walking wheel and a driving motor. The fixed bracket is fixed to the bottom of the connecting bracket, the walking wheel is rotatably mounted on the bottom of the fixed bracket, the driving motor is mounted on the side wall of the fixed bracket, and the driving shaft of the driving motor is axially fixed to the rotating shaft of the walking wheel.

4. The drainage pipe leakage detection structure according to claim 1, characterized in that: The leakage detection unit includes a fixed shell, a sliding assembly, a semicircular sealing assembly and a pressurization detection assembly. The fixed shell is arranged at the bottom of the connecting bracket. The two sliding assemblies are symmetrically arranged in the fixed shell and can move back and forth along the length direction of the fixed shell. A connecting plate frame is installed below each sliding assembly and passes through the fixed shell. The two semicircular sealing assemblies are respectively fixed on the two connecting plate frames. The openings of the two semicircular sealing assemblies are arranged facing each other and can form an annular sealing space after being fitted with the outer circumferential surface of the pipeline. The pressurization detection assembly is arranged on the outside of the semicircular sealing assembly and is connected to the inner wall of the semicircular sealing assembly.

5. The drainage pipe leakage detection structure according to claim 4, characterized in that: Two sliding spaces are symmetrically provided in the fixed shell, and a strip slide groove communicating with the outside world is provided at the bottom of each sliding space. The two sliding components are symmetrically arranged in the two sliding spaces, and the sliding components include a servo motor, a threaded rod and a limit slider. The servo motor is installed on the inner wall of one side of the sliding space, and the output shaft of the servo motor is fixedly connected to one end of the threaded rod, and the other end of the threaded rod is rotatably provided on the inner wall of the other side of the sliding space. The limit slider is rotated on the threaded rod, and the connecting plate frame is fixed on the limit slider. The connecting plate frame passes through the sliding space and is accommodated in the strip slide groove.

6. The drainage pipe leakage detection structure according to claim 1, characterized in that: It also includes an ice cleaning unit, which is fixed on the connecting bracket and is located outside the two pipeline support components.

7. The drainage pipe leakage detection structure according to claim 1, characterized in that: The ice layer cleaning unit also includes a connecting support frame, an arc-shaped shell and an annular frame, the connecting support frame is fixed on the connecting support frame, the arc-shaped shell is fixed on one end of the connecting support frame away from the connecting support frame, the outer ring side surface of the annular frame is evenly distributed with teeth and grooves, and one side of the annular frame is provided with an opening, one side of the annular frame is arranged in the arc-shaped receiving groove of the arc-shaped shell, two synchronously rotating rotating motors are respectively installed on the outer walls on both sides of the arc-shaped shell, the driving shaft of each rotating motor is inserted into the arc-shaped receiving groove and meshes with the teeth and grooves through gears, and multiple ice-breaking parts are fixed on the inner ring side wall of the annular frame at equal intervals in the circumferential direction, and the ice-breaking part has a heating function and can extend to the outer surface of the pipeline.

8. The drainage pipe leakage detection structure according to claim 7, characterized in that: The ice-breaking part also includes an outer connecting arm, an inner connecting arm and a limit spring, the outer connecting arm is fixed on the inner ring side wall of the annular frame, and the outer connecting arm and the inner connecting arm are both provided with a groove extending inward at one end, and one end of the limit spring and the inner connecting arm are both inserted into the groove of the outer connecting arm, and one end of the limit spring abuts against the outer connecting arm, and the other end of the limit spring penetrates into the groove of the inner connecting arm and abuts against the inner connecting arm, the fixed cross frame is fixed to the end of the inner connecting arm that passes through the outer connecting arm, and both sides of the fixed cross frame are rotatably connected with ice-breaking claws, and both side walls of the passing end of the inner connecting arm are fixed with springs, and the ice-breaking claws are fixedly connected to the springs.

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