Urban gas pipeline leakage detecting and positioning device

Abstract

The utility model belongs to the technical field of gas pipeline leakage positioning, and particularly relates to an urban gas pipeline leakage detecting and positioning device which comprises an inner cylinder and an outer cylinder, a plurality of limiting frames are fixedly arranged outside the inner cylinder, a plurality of limiting plates are fixedly arranged on the inner wall of the outer cylinder, a plurality of clamping parts are movably arranged on the inner cylinder, and the limiting plates are fixedly arranged on the clamping parts. Through the arrangement of the positioning rods, the locking frame, the spring and the ejector rod, after the inner barrel is sleeved with the outer barrel, the multiple positioning rods are extruded at the same time, the positioning rods drive the clamping block to move, the inclined face of the clamping block and the inclined face of the locking frame are attached to enable the locking frame to rotate, and after the inclined face of the clamping block and the inclined face of the locking frame are disengaged, the spring pushes the locking frame to lock the clamping block. When one end of the positioning rod is inserted into the clamping part and drives the elastic layer at one end of the clamping part to be attached to the pipeline, extrusion of the positioning rod can be stopped, installation of the outer cylinder is achieved, installation can be achieved without frequently rotating a plurality of clamping shafts, and the installation efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of gas pipeline leakage positioning, in particular to a city gas pipeline leakage detection and positioning device. Background Art

[0002] As one of the essential and important facilities in cities, gas pipelines have made great contributions to people's living standards. However, gas pipeline leakage accidents often occur due to aging gas pipeline equipment, geographical and climatic factors, and human damage. If a gas pipeline leaks, it needs to be repaired in a timely manner to avoid property losses and environmental pollution caused by natural gas leaks. In order to improve safety, detection equipment will be used to detect the pipeline. Since the existing detection method has poor real-time performance and cannot quickly find the leaking pipeline, patent CN114593373A discloses a city gas pipeline leak detection and positioning device. The positioning module and the acquisition module send positioning information to the control terminal. The positioning information can determine the position of the front end and the end of the gas pipeline, and then locate the gas pipeline, so that the operator can quickly find the leaking pipeline.

[0003] However, in this solution, when the outer cylinder is installed on the outside of the inner cylinder, multiple clamping shafts need to be rotated to fix the outer cylinder. The operation is cumbersome and reduces the installation efficiency. Therefore, a city gas pipeline leakage detection and positioning device is proposed. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings of the prior art and to propose a city gas pipeline leakage detection and positioning device.

[0005] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solution: a city gas pipeline leakage detection and positioning device, including an inner tube and an outer tube, a plurality of limit frames are fixedly provided on the outside of the inner tube, a plurality of limit plates are fixedly provided on the inner wall of the outer tube, a plurality of clamping parts are movably provided on the inner tube, closing plates are fixedly provided on the front and back sides of the inner tube and the outer tube, and a plurality of mounting structures are provided on the outside of the inner tube.

[0006] As a further description of the above technical solution:

[0007] An elastic layer is provided at each of the adjacent ends of the plurality of clamping parts, and the elastic layer is made of rubber.

[0008] As a further description of the above technical solution:

[0009] There are four limit frames and four limit plates, and the four limit frames and the four limit plates are arranged in a circular equidistant array. The limit frames and the limit plates are matched with each other.

[0010] As a further description of the above technical solution:

[0011] The mounting structure includes a mounting box fixedly connected to the outer cylinder, a positioning rod movably provided in the mounting box, a plurality of blocks fixedly provided on the positioning rod, a hinged seat fixedly provided on the top inner wall of the mounting box, a locking frame movably provided in the hinged seat, a spring fixedly provided on the top inner wall of the mounting box, a top rod movably provided on the top inner wall of the mounting box, and a protective assembly provided on the top of the mounting box.

[0012] As a further description of the above technical solution:

[0013] The locking frame includes a locking rod and a locking buckle. The sides of the clamping block and the locking buckle that are close to each other are both provided with inclined surfaces. The inclined surface on one side of the locking buckle is parallel to the inclined surface on one side of the clamping block.

[0014] As a further description of the above technical solution:

[0015] The protection component includes an external threaded tube fixedly connected to the installation box, and a protective cover is movably provided on the outside of the external threaded tube.

[0016] The utility model has the following beneficial effects:

[0017] 1. Compared with the existing technology, the city gas pipeline leak detection and positioning device is provided with a positioning rod, a clamping block, a hinged seat, a locking frame, a spring and a push rod. When the outer tube is sleeved on the inner tube, multiple positioning rods are squeezed at the same time, and the positioning rods drive the clamping block to move. The inclined surface of the clamping block and the inclined surface of the locking frame fit together to enable the locking frame to rotate. When the inclined surface of the clamping block and the inclined surface on the locking frame are out of contact, the spring pushes the locking frame to be clamped on the clamping block to achieve positioning of the positioning rod. When one end of the positioning rod is inserted into the clamping part and drives the elastic layer at one end of the clamping part to fit together with the pipeline, the squeezing of the positioning rod can be stopped to achieve installation of the outer tube. Installation can be achieved without frequently rotating multiple clamping shafts, thereby improving installation efficiency.

[0018] 2. Compared with the existing technology, this city gas pipeline leakage detection and positioning device is equipped with an external threaded tube and a protective cover. After the outer tube is installed, the protective cover is put on the outside of the external threaded tube, and then the protective cover is rotated clockwise to achieve the installation of the protective cover. The setting of the protective cover can prevent the top rod from being accidentally touched, causing the positioning rod to loosen, resulting in the outer tube loosening or falling off. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the three-dimensional structure of a city gas pipeline leakage detection and positioning device proposed by the utility model;

[0020] Figure 2This is a schematic diagram of the front cross-section structure of a city gas pipeline leakage detection and positioning device proposed by the utility model;

[0021] Figure 3 This is a front cross-sectional schematic diagram of the installation structure of a city gas pipeline leakage detection and positioning device proposed by the present invention;

[0022] Figure 4 This is a schematic diagram of the exploded structure of a protective component in a city gas pipeline leakage detection and positioning device proposed by the utility model.

[0023] Legend:

[0024] 1. Inner tube; 2. Outer tube; 3. Limiting frame; 4. Limiting plate; 5. Clamping part; 6. Closing plate; 7. Elastic layer; 8. Installation structure; 801. Installation box; 802. Positioning rod; 803. Block; 804. Articulated seat; 805. Locking frame; 806. Spring; 807. Push rod; 9. Protective assembly; 901. Externally threaded pipe; 902. Protective cover. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] Reference Figures 1 to 4 The utility model provides a city gas pipeline leakage detection and positioning device: it includes an inner tube 1 and an outer tube 2, a plurality of limit frames 3 are fixedly provided on the outside of the inner tube 1, and a plurality of limit plates 4 are fixedly provided on the inner wall of the outer tube 2, the number of the limit frames 3 and the limit plates 4 are four, the four limit frames 3 and the four limit plates 4 are all in a circular equidistant array, the limit frames 3 and the limit plates 4 are adapted, a plurality of clamping parts 5 are movably provided on the inner tube 1, and an elastic layer 7 is provided at one end where the plurality of clamping parts 5 are close to each other, and the elastic layer 7 is made of rubber, and a closing plate 6 is fixedly provided on the front and back sides of the inner tube 1 and the outer tube 2;

[0027] In order to achieve the purpose of quick installation, the outside of the inner tube 1 is provided with multiple mounting structures 8, and the mounting structure 8 includes a mounting box 801 fixedly connected to the outer tube 2, a positioning rod 802 is movably provided in the mounting box 801, and a plurality of clamping blocks 803 are fixed on the positioning rod 802. A hinge seat 804 is fixed on the top inner wall of the mounting box 801, and a locking frame 805 is movably provided in the hinge seat 804. The locking frame 805 includes a locking rod and a locking buckle. The side where the clamping block 803 and the locking buckle are close to each other is provided with an inclined surface, and the inclined surface on one side of the locking buckle is parallel to the inclined surface on one side of the clamping block 803. A spring 806 is fixed on the top inner wall of the mounting box 801, and the mounting box 8 A push rod 807 is movably provided on the top inner wall of 01, which presses multiple positioning rods 802 inward at the same time, and the positioning rod 802 drives the clamping block 803, and the clamping block 803 fits with the inclined surface of the locking frame 805. When the inclined surface of the clamping block 803 and the inclined surface on the locking frame 805 are out of contact, the spring 806 pushes the locking frame 805 to make it stuck on the clamping block 803 to achieve the positioning of the positioning rod 802. When one end of the positioning rod 802 is inserted into the clamping part 5 and drives the elastic layer 7 at one end of the clamping part 5 to fit with the pipe, the squeezing of the positioning rod 802 can be stopped, and the installation of the outer cylinder 2 can be achieved. The installation can be achieved without frequently rotating multiple clamping shafts, thereby improving the efficiency of the installation.

[0028] In order to prevent the outer cylinder 2 from accidentally loosening or falling off, a protective component 9 is provided on the top of the installation box 801. The protective component 9 includes an externally threaded tube 901 fixedly connected to the installation box 801. The outside of the externally threaded tube 901 is provided with a protective cover 902. After the outer cylinder 2 is installed, the protective cover 902 is put on the outside of the externally threaded tube 901, and then the protective cover 902 is rotated clockwise to achieve the installation of the protective cover 902. The setting of the protective cover 902 can prevent the top rod 807 from being accidentally touched, causing the positioning rod 802 to loosen, resulting in the outer cylinder 2 loosening or falling off.

[0029] Working principle: When in use, the flow meter and pressure transmitter are pre-installed on the gas pipeline, and then the inner tube 1 is sleeved on the flow meter or pressure transmitter, and the main components of the flow meter or pressure transmitter pass through the inner tube 1, and then the outer tube 2 is sleeved on the outside of the inner tube 1. When sleeved, the limit plate 4 is inserted into the limit frame 3. The setting of the limit plate 4 and the limit frame 3 can facilitate the adjustment of the position of the outer tube 2, so that it is easy to sleeve it on the inner tube 1, and then press multiple positioning rods 802 inward at the same time. The positioning rod 802 drives the card block 803, and the card block 803 fits with the inclined surface of the locking frame 805. When the inclined surface of the card block 803 and the inclined surface on the locking frame 805 are out of contact, the spring 806 pushes the locking frame 805, so that it is stuck on the card block 803 to achieve alignment. The positioning rod 802 is positioned. When one end of the positioning rod 802 is inserted into the clamping part 5 and drives the elastic layer 7 at one end of the clamping part 5 to fit the pipe, the squeezing of the positioning rod 802 can be stopped to achieve the installation of the outer tube 2. When disassembling, the push rod 807 is squeezed, and the push rod 807 drives the locking frame 805 to make it disengage from the block 803, and then the positioning rod 802 is pulled outward to disengage from the clamping part 5. Finally, the outer tube 2 is pulled outward to complete the disassembly. After the outer tube 2 is installed, the protective cover 902 is put on the outside of the external threaded tube 901, and then the protective cover 902 is rotated clockwise to achieve the installation of the protective cover 902. The setting of the protective cover 902 can prevent the push rod 807 from being accidentally touched to loosen the positioning rod 802, resulting in the loosening or falling off of the outer tube 2.

[0030] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A city gas pipeline leak detection and positioning device, comprising an inner cylinder (1) and an outer cylinder (2), characterized in that: A plurality of limiting frames (3) are fixedly provided on the outside of the inner cylinder (1), a plurality of limiting plates (4) are fixedly provided on the inner wall of the outer cylinder (2), a plurality of clamping parts (5) are movably provided on the inner cylinder (1), closing plates (6) are fixedly provided on the front and back sides of the inner cylinder (1) and the outer cylinder (2), and a plurality of mounting structures (8) are provided on the outside of the inner cylinder (1); The mounting structure (8) comprises a mounting box (801) fixedly connected to the outer cylinder (2), a positioning rod (802) movably provided in the mounting box (801), a plurality of clamping blocks (803) fixedly provided on the positioning rod (802), a hinge seat (804) fixedly provided on the top inner wall of the mounting box (801), a locking frame (805) movably provided in the hinge seat (804), a spring (806) fixedly provided on the top inner wall of the mounting box (801), a top rod (807) movably provided on the top inner wall of the mounting box (801), and a protective assembly (9) provided on the top of the mounting box (801); The locking frame (805) includes a locking rod and a locking buckle, and the sides of the clamping block (803) and the locking buckle that are close to each other are both provided with inclined surfaces, and the inclined surface on one side of the locking buckle is parallel to the inclined surface on one side of the clamping block (803); The protection assembly (9) comprises an externally threaded tube (901) fixedly connected to the installation box (801), and a protective cover (902) is movably provided on the outside of the externally threaded tube (901).

2. A city gas pipeline leak detection and positioning device according to claim 1, characterized in that: An elastic layer (7) is provided at each of the adjacent ends of the plurality of clamping portions (5), and the elastic layer (7) is made of rubber.

3. The city gas pipeline leak detection and positioning device according to claim 1, characterized in that: The number of the limiting frames (3) and the limiting plates (4) is four, and the four limiting frames (3) and the four limiting plates (4) are all in a circular equidistant array, and the limiting frames (3) and the limiting plates (4) are adapted to each other.

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