Contact device for buried pipeline detection and mounting and dismounting method thereof

Abstract

The invention discloses a contact device for buried pipeline detection and a mounting and dismounting method thereof. The contact device comprises a sleeve structure and a probe rod structure, the feeler lever structure comprises a protective pipe cap, a feeler lever and a detection disc, the upper end of the protective pipe is arranged in an inner cavity of the sleeve structure, and the lower end of the protective pipe penetrates through the bottom of the sleeve structure and is arranged on the buried pipeline; the probe rod is inserted into the protective pipe, a connecting rod with a small diameter is fixedly arranged at the non-detection end of the probe rod, the protective pipe cap is arranged on the connecting rod in a sleeving mode and covers an upper opening of the protective pipe, a spring is movably arranged on the connecting rod in a sleeving mode, and the spring is in a compressed state so that the detection end of the probe rod can be in contact with the upper surface of the buried pipeline. The detection disc is detachably arranged at the top of the connecting rod; the detection disc is used for placing acoustic leakage detection equipment and / or settlement detection equipment, so that subsequent leakage and settlement inspection and detection are facilitated, and the purposes of reducing reexamination and real-time detection are achieved.

Description

Technical Field

[0001] The invention belongs to the technical field of urban water supply network detection, and in particular relates to a contact device for buried pipeline detection and an installation and disassembly method thereof. Background Art

[0002] The urban water supply network is an important part of the urban water supply system, the material basis for the survival and development of the city, and an important condition for ensuring the normal operation and healthy development of the city. With the rapid development of urbanization in my country, the scale of urban water supply networks is also getting larger and larger. There is an urgent need for a detection device installation facility that is convenient for leak inspection and detection, adaptable to a variety of environments, improves the detection rate, reduces losses, and reduces the safety risks of urban pipe networks.

[0003] With the development of urban lifeline projects, although the traditional listening method is easy to operate and low in cost, it is overly dependent on manual experience, instrument leak detection accuracy, and the weak sound propagation distance of some pipelines. It is not only time-consuming and labor-intensive, but also difficult to quickly locate the leak. Summary of the invention

[0004] Based on this, in view of the deficiencies of the prior art, the present invention discloses a contact device for buried pipeline detection and an installation and disassembly method thereof, so as to solve the problem that the detection device in the prior art is not only time-consuming and labor-intensive, but also difficult to quickly locate the leakage position.

[0005] In order to achieve the above object, the technical solution adopted by the present invention is:

[0006] A contact device for buried pipeline detection, comprising: a sleeve structure and a probe rod structure;

[0007] A sleeve installation groove is provided on the ground above the buried pipeline, and a protective pipe insertion hole is provided at the bottom of the sleeve installation groove, the sleeve structure is arranged in the sleeve installation groove, and the protective pipe insertion hole extends to the upper surface of the buried pipeline;

[0008] The probe rod structure comprises a protective tube, a protective tube cap, a probe rod and a detection disk, the upper end of the protective tube is arranged in the inner cavity of the sleeve structure, the lower end of the protective tube passes through the bottom of the sleeve structure and is arranged in the protective tube insertion hole, and the lower end of the protective tube is arranged on the buried pipeline; the probe rod is inserted in the protective tube, a connecting rod is fixedly arranged on the non-detection end of the probe rod, and the diameter of the connecting rod is smaller than the diameter of the probe rod, a through hole is opened on the top of the protective tube cap, the protective tube cap is sleeved on the connecting rod through the through hole and covers the upper opening of the protective tube, a spring is movably sleeved on the connecting rod, and one end of the spring abuts on the non-detection end of the probe rod, and the other end abuts on the top inner wall of the protective tube cap, the spring is in a compressed state, so that the detection end of the probe rod maintains a contact state with the upper surface of the buried pipeline, and the detection disk is detachably arranged on the top of the connecting rod;

[0009] The detection tray is used for placing an acoustic leakage detection device and / or a sedimentation detection device.

[0010] In some of the embodiments, a sleeve matched with the connecting rod is fixedly provided on the bottom of the detection plate, and the detection plate is detachably fixed to the connecting rod through the sleeve.

[0011] In some of the embodiments, the detection end of the probe rod is a round head.

[0012] In some of the embodiments, the sleeve structure includes an outer chamber body and an inner chamber body;

[0013] The inner warehouse body is sleeved in the outer warehouse body, and there is a gap between the bottom plate of the inner warehouse body and the bottom plate of the outer warehouse body. The bottom plates of the inner warehouse body and the outer warehouse body are respectively provided with openings for the protective tube to pass through, and a filler is provided between the outer warehouse body and the inner warehouse body.

[0014] In some embodiments, the filler is rubber, and the thickness of the filler is greater than or equal to 10 mm.

[0015] In some of the embodiments, a cover plate is provided on the top opening of the outer storage body.

[0016] In some of the embodiments, the cover plate is connected to the outer compartment body in a snap-fit ​​manner.

[0017] In some of the embodiments, the inner chamber body and the outer chamber body are both made of metal.

[0018] In some of the embodiments, the probe rod is a stainless steel probe rod.

[0019] In addition, the present invention also discloses a method for installing and disassembling the contact device for buried pipeline detection, wherein the installation method comprises the following steps:

[0020] After determining the installation position of the contact device, drilling a hole in the ground at the installation position is performed using a drill bit to form a sleeve installation groove;

[0021] Install the sleeve structure in the sleeve installation groove, and continue drilling from the bottom opening of the sleeve structure to the bottom of the sleeve installation groove to form a protective tube insertion hole;

[0022] Inserting a protective tube from the inner cavity of the sleeve structure into the protective tube insertion hole, with the bottom of the protective tube in contact with the surface of the buried pipeline;

[0023] Inserting a probe provided with a connecting rod and a spring into the protective tube, and bringing the detection end of the probe into contact with the surface of the buried pipeline;

[0024] The protective tube cap is sleeved on the connecting rod and covers the upper opening of the protective tube, and the protective tube cap makes the spring in a compressed state, thereby keeping the probe rod in a downward pressed state;

[0025] The detection plate is installed on the top of the connecting rod, and an acoustic leakage detection device and / or a settlement detection device is installed on the detection plate;

[0026] The disassembly method comprises the following steps:

[0027] removing the acoustic leak detection device and / or the settlement detection device;

[0028] Taking the probe structure out of the sleeve structure;

[0029] The sleeve structure is taken out from the sleeve installation groove and the ground is backfilled.

[0030] Compared with the prior art, the present invention has at least one of the following advantages or beneficial effects:

[0031] 1. The contact device for buried pipeline detection provided by the present invention can select the installation size and installation position according to the specific road conditions and needs during installation to achieve the purpose of improving the detection and inspection efficiency, and is suitable for a variety of different models and diameters, with a wide range of applications.

[0032] 2. The contact device for buried pipeline detection and the installation and disassembly method thereof provided by the present invention can reduce the time of working downhole, reduce the possibility of accidents, and achieve the purpose of rapid installation and disassembly.

[0033] 3. The contact device for buried pipeline detection and the installation and disassembly method thereof provided by the present invention can save the cost of pipeline blocking and diversion, thereby achieving the purpose of effective cost saving.

[0034] 4. The contact device for buried pipeline detection provided by the present invention and its installation and disassembly method, by installing an acoustic leakage detection device for acoustic leakage detection and / or a settlement detection device for settlement detection inside the sleeve structure, facilitates subsequent leakage and settlement inspections and detections, and achieves the purpose of reducing re-inspections and real-time detection.

[0035] 5. The contact device for detecting buried pipelines of detection equipment provided by the present invention and the installation and disassembly method thereof can achieve the purpose of shortening the detection distance, quickly contacting the buried pipeline, facilitating leakage inspection and detection, improving the detection rate, and reducing losses. The installation position can be selected, and the installation is fast, convenient, safe and reliable. It provides scientific technical means and guiding basis for daily maintenance and damage repair decisions of underground water supply pipelines, and is of great significance to the safe operation and maintenance of urban pipelines. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] The present invention and its features, appearance and advantages will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings. The same reference numerals indicate the same parts in all the drawings. The drawings are not drawn to scale, and emphasis is placed on illustrating the subject matter of the present invention.

[0037] Figure 1 It is a schematic structural diagram of a contact device for buried pipeline detection in an embodiment of the present invention;

[0038] Among them, 1 is a cover plate; 2 is an outer chamber body; 3 is a filler; 4 is an inner chamber body; 5 is a detection plate; 6 is a connecting rod; 7 is a protective pipe cap; 8 is a spring; 9 is a probe rod; 10 is a protective pipe; 11 is an acoustic leakage detection device; and 12 is a settlement detection device. DETAILED DESCRIPTION

[0039] The present invention is further described below with reference to the accompanying drawings and specific embodiments, but is not intended to be a limitation of the present invention.

[0040] Embodiment 1:

[0041] like Figure 1As shown, the present embodiment discloses a contact device for detecting a buried pipeline, which is generally a water supply pipeline; specifically, the contact device comprises: a sleeve structure and a probe rod structure; a sleeve installation groove is provided on the ground above the buried pipeline, and a protective pipe insertion hole is provided at the bottom of the sleeve installation groove, the sleeve structure is arranged in the sleeve installation groove, and the protective pipe insertion hole extends to the upper surface of the buried pipeline; the probe rod structure comprises a protective pipe 10, a protective pipe cap 7, a probe rod 9 and a detection plate 5, the upper end of the protective pipe 10 is arranged in the inner cavity of the sleeve structure, the lower end of the protective pipe 10 passes through the bottom of the sleeve structure and is arranged in the protective pipe insertion hole, and the lower end of the protective pipe 10 is arranged on the buried pipeline and contacts the buried pipeline; the probe rod 9 is inserted in the protective pipe 10, and a connecting rod 6 ( Specifically, the connecting rod 6 and the probe rod 9 are an integrated structure, and the diameter of the connecting rod 6 is smaller than the diameter of the probe rod 9. A through hole is provided on the top of the protective cap 7 (the size of the through hole is slightly larger than the size of the connecting rod 6). The protective cap 7 is sleeved on the connecting rod 6 through the through hole and covers the upper opening of the protective tube 10. A spring 8 is movably sleeved on the connecting rod 6, and one end of the spring 8 abuts against the non-detection end of the probe rod 10, and the other end abuts against the top inner wall of the protective cap 7. The spring 8 is in a compressed state so that the detection end of the probe rod 10 maintains contact with the upper surface of the buried pipeline. The detection plate 5 is detachably arranged on the top of the connecting rod 6; the detection plate 5 is used to place the acoustic leakage detection equipment and the settlement detection equipment at the same time, so that the leakage and settlement of the buried pipeline can be detected at the same time. Of course, in other embodiments of the present invention, the detection plate 5 can also be used to place the acoustic leakage detection equipment or the settlement detection equipment separately as needed. The contact device can quickly approach the buried pipeline so that the detection equipment forms physical contact with the buried pipeline, thereby facilitating the detection of the detection equipment, and the contact device has the advantages of fast and convenient installation, safety and reliability.

[0042] Specifically, a sleeve adapted to the connecting rod 6 is fixedly provided at the bottom of the detection tray 5 , and the detection tray 5 is detachably fixed to the connecting rod 6 through the sleeve to facilitate fixing the detection tray 5 on the connecting rod 6 or removing it from the connecting rod 6 .

[0043] The sleeve structure comprises an outer bin body 2 and an inner bin body 4, wherein the inner bin body 4 is sleeved in the outer bin body 2, and a gap is provided between the bottom plate of the inner bin body 4 and the bottom plate of the outer bin body 2; the bottom plates of the inner bin body 4 and the outer bin body 2 are both provided with openings for the protective tube 10 to pass through, and a filler 3 is provided in the area between the outer bin body 2 and the inner bin body 4 (specifically, a filler 3 is provided in the gap between the inner wall of the outer bin body 2 and the outer wall of the inner bin body 4 and between the bottom plate of the inner bin body 4 and the bottom plate of the outer bin body 2, and the filler 3 is located in the gap The inner filling glue 3 is provided with reserved holes corresponding to the openings on the bottom plate of the inner warehouse body 4 and the bottom plate of the outer warehouse body 2), and the inner wall of the outer warehouse body 2 and the outer wall of the inner warehouse body 4 are fully in contact with the filling glue 3, and the filling glue 3 is made of rubber. The inner warehouse body 4 and the outer warehouse body 2 achieve the purpose of shock absorption through the filling glue 3, and the thickness of the filling glue 3 is at least 10 mm (that is, the thickness of the filling glue 3 is greater than or equal to 10 mm) to ensure the internal stability of the sleeve structure; and the top opening of the outer warehouse body 2 is provided with a cover plate 1, and the cover plate 1 is connected to the outer warehouse body 2 by a snap-on connection. The inner bin body 4, the outer bin body 2 and the cover plate 1 are all made of metal. Specifically, the outer bin and the inner bin are both metal cylinders. The protective tube 10 contacts the buried pipeline through the reserved opening of the inner bin body 4 (the opening for the protective tube 10 to pass through), the reserved hole of the filler 3 at the bottom, and the reserved opening of the outer bin body 2 (the opening for the protective tube 10 to pass through). In addition, the present invention takes into account different ground conditions. The sizes of the inner bin body 4 and the outer bin body 2 can be selected according to needs. At the same time, the inner bin body 4 also has a reserved space so that other detection equipment can be installed as needed to provide long-term detection of pipeline settlement and leakage and other situations, and has a wide range of applications.

[0044] In addition, considering the on-site implementation environment and subsequent working environment, this embodiment has certain requirements on the materials of various parts of the contact device for buried pipeline detection. The following are the specific requirements and purposes:

[0045] The outer warehouse body 2 is made of a metal cylinder so that the outer warehouse body 2 can withstand a certain pressure and is convenient for drilling and installation. The inner warehouse body 4 is made of a metal cylinder so that the inner warehouse body 4 can adapt to the size of the outer warehouse body 2. At the same time, the height of the inner warehouse body 4 must be guaranteed to prevent heavy vehicles from driving over the ground and causing large deformations, which will compress the buried pipelines. The filler 3 is made of rubber to achieve the purpose of shock absorption and sound insulation. The cover plate 1 is made of cast steel to ensure that the cover plate 1 has a certain pressure bearing capacity and deformation capacity to protect the various components in the inner warehouse. The cover plate 1 is a compression type, which is convenient for subsequent installation and disassembly inspection. The protective pipe 10 is made of PVC pipe. The function of the protective pipe 10 is to protect the probe rod 9 from external force damage and prevent sediment deposition and damage to the buried pipeline. The probe rod 9 and the connecting rod 6 are made of stainless steel to prevent corrosion caused by underground moisture. The spring 8 is made of stainless steel to prevent corrosion caused by underground moisture. The protective pipe cap 7 and the detection plate 5 are made of stainless steel to prevent corrosion caused by underground moisture. The detection plate 5 is convenient for listening detection. The detection end of the probe rod 9 uses a round head to prevent damage to the buried pipeline.

[0046] Embodiment 2:

[0047] This embodiment discloses a method for installing and removing the contact device for buried pipeline detection in the first embodiment. Specifically, the method for installing the contact device for buried pipeline detection includes the following steps:

[0048] Step S11, after determining the installation position of the contact device, use a drill bit to drill a hole in the ground at the installation position to form a sleeve installation groove; specifically, first determine the installation location of the contact device, use a drill bit of more than 25mm to drill through the ground for hard ground to form a sleeve installation groove, and directly drill down for soft ground and pour concrete counterweights around the opening to form a sleeve installation groove.

[0049] Step S12, installing the sleeve structure in the sleeve installation groove, and drilling a hole from the bottom opening of the sleeve structure to the bottom of the sleeve installation groove to form a protective tube insertion hole.

[0050] Specifically, use a probe rod to determine the specific location of the buried pipeline. After confirming the depth of the buried pipeline, cut the probe rod so that the length of the probe rod is convenient for subsequent installation in the protective pipe; clear the underground space, install the sleeve structure in the sleeve installation groove, and ensure that the sleeve structure will not tilt, squeeze, deform, or sink; continue to use a drill bit and a probe rod with a diameter of more than 25 mm to drill downward from the bottom hole of the sleeve structure to form a protective pipe socket.

[0051] Step S13, inserting the protective tube into the protective tube insertion hole from the inner cavity of the sleeve structure, and the bottom of the protective tube contacts the surface of the buried pipeline.

[0052] Step S14, inserting a probe rod provided with a connecting rod and a spring into the protective pipe, and bringing the detection end of the probe rod into contact with the surface of the buried pipeline.

[0053] Step S15, a protective pipe cap is put on the connecting rod and covers the upper opening of the protective pipe, and the protective pipe cap compresses the spring, thereby keeping the probe rod in a downward pressure state (maintaining a slight downward pressure on the probe rod) to ensure that the detection end of the probe rod maintains contact with the buried pipeline.

[0054] Step S16, install a detection plate on the top of the connecting rod, install an acoustic leakage detection device and a settlement detection device on the detection plate, and seal the cover plate to complete the installation.

[0055] The above-mentioned method for disassembling the contact device for buried pipeline detection comprises the following steps:

[0056] Step S21, remove the cover plate and remove the acoustic leakage detection equipment and the settlement detection equipment.

[0057] Step S22, taking the probe rod structure out of the sleeve structure.

[0058] Step S23, remove the sleeve structure from the sleeve installation groove and backfill the ground to prevent traffic accidents.

[0059] Those skilled in the art should understand that those skilled in the art can implement variations by combining the prior art and the above embodiments, which will not be described in detail here. Such variations do not affect the essential content of the present invention, and will not be described in detail here.

[0060] The above describes the preferred embodiments of the present invention. It should be understood that the present invention is not limited to the above-mentioned specific embodiments, and the devices and structures that are not described in detail should be understood to be implemented in a common manner in the art; any technician familiar with the art can use the above-disclosed methods and technical contents to make many possible changes and modifications to the technical solutions of the present invention without departing from the scope of the technical solutions of the present invention, or modify them into equivalent embodiments of equivalent changes, which does not affect the essential content of the present invention. Therefore, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solutions of the present invention are still within the scope of protection of the technical solutions of the present invention.

Claims

1. A contact device for buried pipeline detection, characterized in that: include: Sleeve structure and probe rod structure; A sleeve installation groove is provided on the ground above the buried pipeline, and a protective pipe insertion hole is provided at the bottom of the sleeve installation groove, the sleeve structure is arranged in the sleeve installation groove, and the protective pipe insertion hole extends to the upper surface of the buried pipeline; The probe rod structure comprises a protective tube, a protective tube cap, a probe rod and a detection disk, the upper end of the protective tube is arranged in the inner cavity of the sleeve structure, the lower end of the protective tube passes through the bottom of the sleeve structure and is arranged in the protective tube insertion hole, and the lower end of the protective tube is arranged on the buried pipeline; the probe rod is inserted in the protective tube, a connecting rod is fixedly arranged on the non-detection end of the probe rod, and the diameter of the connecting rod is smaller than the diameter of the probe rod, a through hole is opened on the top of the protective tube cap, the protective tube cap is sleeved on the connecting rod through the through hole and covers the upper opening of the protective tube, a spring is movably sleeved on the connecting rod, and one end of the spring abuts on the non-detection end of the probe rod, and the other end abuts on the top inner wall of the protective tube cap, the spring is in a compressed state, so that the detection end of the probe rod maintains a contact state with the upper surface of the buried pipeline, and the detection disk is detachably arranged on the top of the connecting rod; The detection tray is used for placing an acoustic leakage detection device and / or a sedimentation detection device.

2. The contact device for buried pipeline detection according to claim 1, characterized in that: A sleeve matched with the connecting rod is fixedly arranged at the bottom of the detection plate, and the detection plate is detachably fixed on the connecting rod through the sleeve.

3. The contact device for buried pipeline detection according to claim 1, characterized in that: The detection end of the probe rod is a round head.

4. The contact device for buried pipeline detection according to claim 1, characterized in that: The sleeve structure comprises an outer storage body and an inner storage body; The inner warehouse body is sleeved in the outer warehouse body, and there is a gap between the bottom plates of the inner warehouse body and the outer warehouse body. The bottom plates of the inner warehouse body and the outer warehouse body are respectively provided with openings for the protective tube to pass through, and glue is provided between the outer warehouse body and the inner warehouse body.

5. The contact device for buried pipeline detection according to claim 4, characterized in that: The filler is rubber, and the thickness of the filler is greater than or equal to 10 mm.

6. The contact device for buried pipeline detection according to claim 4, characterized in that: The top opening of the outer warehouse body is provided with a cover plate.

7. The contact device for buried pipeline detection according to claim 6, characterized in that: The cover plate is connected to the outer compartment body in a snap-fit ​​manner.

8. The contact device for buried pipeline detection according to claim 6, characterized in that: The inner warehouse body and the outer warehouse body are both made of metal.

9. The contact device for buried pipeline detection according to claim 1, characterized in that: The probe rod is a stainless steel probe rod.

10. A method for installing and removing a contact device for buried pipeline detection according to any one of claims 1 to 9, characterized in that: The installation method comprises the following steps: After determining the installation position of the contact device, drilling a hole in the ground at the installation position is performed using a drill bit to form a sleeve installation groove; Install the sleeve structure in the sleeve installation groove, and continue drilling from the bottom opening of the sleeve structure to the bottom of the sleeve installation groove to form a protective tube insertion hole; Inserting a protective tube from the inner cavity of the sleeve structure into the protective tube insertion hole, with the bottom of the protective tube in contact with the surface of the buried pipeline; Inserting a probe rod provided with a connecting rod and a spring into the protective tube, and bringing the detection end of the probe rod into contact with the surface of the buried pipeline; The protective tube cap is sleeved on the connecting rod and covers the upper opening of the protective tube, and the protective tube cap makes the spring in a compressed state, thereby keeping the probe rod in a downward pressed state; The detection plate is installed on the top of the connecting rod, and an acoustic leakage detection device and / or a settlement detection device is installed on the detection plate; The disassembly method comprises the following steps: removing the acoustic leak detection device and / or the settlement detection device; Taking the probe structure out of the sleeve structure; The sleeve structure is taken out from the sleeve installation groove and the ground is backfilled.

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