CN221402748U

CN221402748U - Pipeline leakage detection device

Info

Publication number: CN221402748U
Application number: CN202323038386.9U
Authority: CN
Inventors: 刘科; 龚铁林
Original assignee: Chongqing Lutai Construction Engineering Quality Inspection Co ltd
Current assignee: Chongqing Lutai Construction Engineering Quality Inspection Co ltd
Priority date: 2023-11-09
Filing date: 2023-11-09
Publication date: 2024-07-23
Anticipated expiration: 2033-11-09

Abstract

The utility model discloses a pipeline leakage detection device, which comprises: the sealing mechanism comprises two discs, two connecting pieces and an air bag, wherein the connecting pieces are arranged between the two discs, and the air bag is sleeved on the discs; the driving mechanism comprises a mounting plate, a walking assembly and an adjusting assembly, wherein the right side of the mounting plate is provided with a sliding groove, the two walking assemblies are arranged in an up-down opposite mode, the two walking assemblies are arranged in the sliding groove in a sliding mode, and the adjusting assembly is arranged on the mounting plate; the air charging and discharging mechanism comprises a first air pump, a second air pump, an electromagnetic reversing valve and an air inlet nozzle, wherein the electromagnetic reversing valve is respectively communicated with the output end of the first air pump, the two air bags and the air inlet nozzle; the air pressure detection piece is arranged between the two discs. Through remove seal assembly to each pipeline section concatenation department in proper order to carry out leak detection to each concatenation department one by one, can be convenient for confirm concrete concatenation seepage position.

Description

Pipeline leakage detection device

Technical Field

The utility model relates to the technical field of pipeline detection, in particular to a pipeline leakage detection device.

Background

When the building construction is carried out, a water supply and drainage system is required to be matched with the building facilities, and the water supply and drainage system is mainly composed of water supply and drainage pipelines, wherein the water supply and drainage pipelines are formed by splicing pipe sections, and the construction quality defect of the pipelines is mainly leakage at the splicing positions of the pipe sections, so that the quality of the pipelines is ensured, and the pipelines are required to be subjected to leakage detection.

In the prior art, in order to perform pipeline leakage detection on a construction site, a common practice is to seal two ends of a pipeline by adopting a structure such as an air bag, then to pressurize and inject fluid such as gas or water into the pipeline and to maintain the pressure, and to determine whether the pipeline has leakage or not by detecting the change amplitude of the fluid pressure in the pipeline along with time.

In actual operation, the scheme is overall leakage detection, so that whether leakage exists in the whole detected pipeline or not can be known, but because the pipeline is spliced by more pipeline sections in sequence, more splicing positions exist, and the specific splicing leakage position is inconvenient to determine.

Disclosure of utility model

The utility model aims to provide a pipeline leakage detection device which can solve the problem that a specific splicing leakage position is inconvenient to determine.

To achieve the above object, there is provided a pipe leakage detecting device comprising: the sealing mechanism comprises two discs, connecting pieces and air bags, wherein the two discs are arranged at intervals left and right, the connecting pieces are arranged between the two discs, and the two discs are respectively sleeved with the air bags; the driving mechanism is positioned on the right side of the sealing mechanism and comprises a mounting disc, a traveling assembly and an adjusting assembly, wherein the right side of the mounting disc is provided with two sliding grooves which are arranged up and down, the traveling assemblies are arranged up and down in a relative mode, the two traveling assemblies are arranged in the sliding grooves in a sliding mode, and the adjusting assembly is arranged on the mounting disc and used for adjusting the distance between the two traveling assemblies; the air charging and discharging mechanism comprises a first air pump, a second air pump, an electromagnetic reversing valve and an air inlet nozzle, wherein the first air pump, the second air pump and the electromagnetic reversing valve are all arranged on the mounting plate, the electromagnetic reversing valve is respectively communicated with the output end of the first air pump, the two air bags and the air inlet nozzle, the input end of the second air pump is communicated with the two air bags, and the air inlet nozzle is arranged between the two circular plates; the air pressure detection piece is arranged between the two discs.

According to the pipeline leakage detection device, the connecting piece is of a hollow structure, the two ends of the connecting piece are provided with external thread barrels assembled with the disc, and the side wall of the connecting piece is provided with a threaded hole.

According to the pipeline leakage detection device, two connecting pieces are arranged, the air pressure detection piece is installed in a threaded hole in one connecting piece, and the air inlet nozzle is installed in a threaded hole in the other connecting piece.

According to the pipeline leakage detection device, the radial side surface of the disc is provided with the mounting groove, and the air bag is positioned in the mounting groove.

According to the pipeline leakage detection device, the right side of the disc positioned on the right side in the sealing mechanism is provided with the internal thread cylinder, the internal thread cylinder is stopped against the left side surface of the mounting disc, and the mounting disc is provided with the positioning bolt assembled with the internal thread cylinder in a penetrating manner.

According to a pipeline leakage detection device, the walking assembly includes installation shell, walking motor, transmission shaft, first walking wheel and second walking wheel, the walking motor sets up in the installation shell to be connected with first gear, transmission shaft transverse arrangement rotates to set up in the installation shell, and the cover is equipped with the second gear with first gear engagement on the transmission shaft, the shaft sets up to two and divides to locate the both sides of installation shell, the shaft slope in the transmission shaft to rotate the lateral wall of wearing to locate the installation shell, be connected with universal joint between the one end that the shaft is located the installation shell and the transmission shaft, the one end that the shaft is located outside the installation shell is provided with first walking wheel, the both sides of installation shell all rotate and are provided with the second walking wheel, and first walking wheel and second walking wheel are left and right are arranged.

According to a pipeline leakage detection device, adjusting part includes rack, adjusting gear and accommodate motor, and the opposite side of two installation shells all is provided with the rack, the rack is located the spout and with mounting disc sliding connection, adjust gear meshing set up between two racks, and adjust gear and mounting disc rotation are connected, accommodate motor sets up in the left side of mounting disc, and accommodate motor's pivot and accommodate motor connection.

According to the pipeline leakage detection device, a supporting rod is connected between one end of the rack away from the installation shell and one end of the installation shell away from the rack.

The beneficial effects are that: according to the structure, the sealing assembly can be sequentially moved to the splicing positions of the pipe sections, and leakage detection is carried out on the splicing positions one by one, so that the specific splicing leakage positions can be conveniently determined, and further repair treatment is facilitated; the two opposite walking components can be stopped against the inner wall of the pipeline so as to move along the pipeline, and the disc can be prevented from overturning in the pipeline; the adjusting component can adjust the distance between the two walking components, so that the driving mechanism can be adapted to pipelines with different inner diameters.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The utility model is further described below with reference to the drawings and examples;

FIG. 1 is a front view of an embodiment of the present utility model;

FIG. 2 is a right side view of the drive mechanism shown in FIG. 1;

FIG. 3 is a cross-sectional view of the connector shown in FIG. 1;

FIG. 4 is a block diagram of the inflation and deflation mechanism;

Fig. 5 is a front view of a walking assembly according to another embodiment of the present utility model.

Detailed Description

Reference will now be made in detail to the present embodiments of the present utility model, examples of which are illustrated in the accompanying drawings, wherein the accompanying drawings are used to supplement the description of the written description so that one can intuitively and intuitively understand each technical feature and overall technical scheme of the present utility model, but not to limit the scope of the present utility model.

In the description of the present utility model, it should be understood that references to orientation descriptions such as upper, lower, front, rear, left, right, etc. are based on the orientation or positional relationship shown in the drawings, are merely for convenience of description of the present utility model and to simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present utility model.

In the description of the present utility model, greater than, less than, exceeding, etc. are understood to exclude this number, and above, below, within, etc. are understood to include this number. The description of the first and second is for the purpose of distinguishing between technical features only and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present utility model, unless explicitly defined otherwise, terms such as arrangement, installation, connection, etc. should be construed broadly and the specific meaning of the terms in the present utility model can be reasonably determined by a person skilled in the art in combination with the specific contents of the technical scheme.

Referring to fig. 1-4, a pipe leak detection apparatus includes a sealing mechanism 10, a driving mechanism 20, an inflation and deflation mechanism 30, and a pneumatic pressure detecting member 40. The sealing mechanism 10 comprises two discs 11, two connecting pieces 12 and an air bag 13, wherein the two discs 11 are arranged at left and right intervals, the connecting pieces 12 are arranged between the two discs 11, and the two discs 11 are respectively sleeved with the air bag 13. The driving mechanism 20 is located on the right side of the sealing mechanism 10 and comprises a mounting plate 21, walking components 22 and an adjusting component, wherein a sliding groove 211 which is arranged up and down is formed in the right side of the mounting plate 21, the two walking components 22 are arranged up and down in a relative mode, the two walking components 22 are arranged in the sliding groove 211 in a sliding mode, and the adjusting component is arranged on the mounting plate 21 and is used for adjusting the distance between the two walking components 22. The inflation and deflation mechanism 30 comprises a first air pump 31, a second air pump 32, an electromagnetic directional valve 33 and an air inlet nozzle 34, wherein the first air pump 31, the second air pump 32 and the electromagnetic directional valve 33 are arranged on the mounting plate 21, the electromagnetic directional valve 33 is respectively communicated with the output end of the first air pump 31, the two air bags 13 and the air inlet nozzle 34, the input end of the second air pump 32 is communicated with the two air bags 13, and the air inlet nozzle 34 is arranged between the two circular discs 11. The air pressure detecting member 40 is disposed between the two disks 11.

When the device is used, according to the inner diameter of a pipeline to be tested, the traveling assemblies 22 are driven to move along the sliding grooves 211 through the adjusting assemblies, so that the distance between the two traveling assemblies 22 is adjusted, and the two traveling assemblies 22 can be ensured to be contacted with the inner wall of the pipeline; the whole device is driven to move along the pipeline through the traveling assembly 22, and when the two discs 11 move to two sides of the splicing part of the pipe sections, the device stops moving; the first air pump 31 works, the air bag 13 and the first air pump 31 are conducted through the electromagnetic directional valve 33, the air bag 13 is inflated to enable the air bag 13 to be tightly attached to the inner wall of a pipeline to form a seal, then the electromagnetic directional valve 33 acts to conduct the air inlet nozzle 34 and the first air pump 31, air is input between the two discs 11 to be pressurized, after the pressurization is finished, the air is stopped to be input, and pressure maintaining is carried out; the pressure change between the two discs 11 over time is detected by the pressure detector 40 and if the pressure drop is outside the normal range, there is a leak at the splice of the tube segments. After the detection is completed, the air in the air bag 13 is pumped out by the second air pump 32 so as to separate the air bag 13 from contact with the inner wall of the pipeline.

According to the structure, the sealing assembly can be sequentially moved to the splicing positions of the pipe sections, and leakage detection is carried out on the splicing positions one by one, so that the specific splicing leakage positions can be conveniently determined, and further repair treatment is facilitated; the walking components 22 are arranged in two opposite ways and can be stopped against the inner wall of the pipeline so as to move along the pipeline, and the disc 11 can be prevented from overturning in the pipeline; the adjustment assembly is capable of adjusting the distance between the two running assemblies 22 so that the drive mechanism 20 can accommodate pipes of different inner diameters.

Specifically, in the present embodiment, the electromagnetic directional valve 33 has three working positions, the input end of the electromagnetic directional valve 33 is connected to the output end of the first air pump 31, one output end of the electromagnetic directional valve 33 is connected to the two air bags 13 through the first pipe 35, and the other output end of the electromagnetic directional valve 33 is connected to the air inlet nozzle 34 through the second pipe 36. The air bag 13 is connected to the second air pump 32 via a third conduit 37. When the electromagnetic directional valve 33 is in the first working position, only the first pipeline 35 is communicated with the first air pump 31; in the second operating position, only the second conduit 36 is in communication with the first air pump 31; when in the third working position, the first pipeline 35, the second pipeline 36 and the first air pump 31 are not communicated with each other, and when the pressure is maintained, the air is in the third working position, so that the air can be prevented from leaking out through the electromagnetic directional valve 33 in the pressure maintaining process. In addition, an electromagnetic on-off valve may be provided between the third pipe 37 and the second air pump 32.

In this embodiment, the connecting member 12 has a hollow structure, two ends of the connecting member 12 have external screw barrels 121 assembled with the disc 11, and a threaded hole 122 is formed in a side wall of the connecting member 12. During assembly, the external thread cylinder 121 is inserted into the circular disc 11 in a threaded fit manner so as to detachably connect the connecting piece 12 with the circular disc 11, and the distance between the two circular discs 11 can be adjusted by replacing the connecting pieces 12 with different lengths.

Specifically, the connecting members 12 are provided with two, wherein the air pressure detecting member 40 is mounted in the threaded hole 122 on one connecting member 12, and the air inlet nozzle 34 is mounted in the threaded hole 122 on the other connecting member 12. Wherein, a part of the first pipe 35, the second pipe 36 and the third pipe 37 are positioned inside the disc 11 and the connecting piece 12, so as to avoid exposing between the two discs 11, and avoid complicated sealing between the first pipe 35, the second pipe 36 and the third pipe 37 and the discs 11 caused by penetrating the opposite side walls of the two discs 11.

In this embodiment, the radial side of the disc 11 is provided with a mounting groove 111, and the air bag 13 is positioned in the mounting groove 111, and by this structure, the air bag 13 can be limited so as to expand radially along the disc 11 when inflated.

In the present embodiment, the right side of the disk 11 located on the right side is provided with the female screw cylinder 14, the female screw cylinder 14 is stopped against the left side surface of the mounting plate 21, and the mounting plate 21 is penetrated with the positioning bolt 212 fitted with the female screw cylinder 14. The sealing mechanism 10 and the mounting disc 21 can be detachably connected by being matched and inserted into the internal thread cylinder 14 through the positioning bolt 212, and the circular discs 11 with different sizes can be matched with pipelines with different inner diameters through replacement; and the internal thread cylinder 14 may separate the disc 11 from the mounting plate 21 so as to mount the adjusting motor 233 and the electromagnetic directional valve 33 therebetween.

In this embodiment, the traveling assembly 22 includes a mounting shell 221, a traveling motor 222, a transmission shaft 223, an axle 224, a first traveling wheel 225 and a second traveling wheel 226, the mounting shell 221 is slidably disposed in the sliding groove 211, the traveling motor 222 is disposed in the mounting shell 221, the rotation shaft of the traveling motor 222 is connected with a first gear 227, the transmission shaft 223 is transversely arranged and rotatably disposed in the mounting shell 221, the transmission shaft 223 is sleeved with a second gear 228 meshed with the first gear 227, the axle 224 is disposed in two and separately disposed on two sides of the mounting shell 221, the axle 224 is inclined to the transmission shaft 223 and rotatably disposed on the side wall of the mounting shell 221, a universal coupling 229 is connected between one end of the axle 224, which is located outside the mounting shell 221, and the transmission shaft 223, two sides of the mounting shell 221 are rotatably provided with the second traveling wheel 226, and the first traveling wheel 225 and the second traveling wheel 226 are disposed left and right. The running motor 222 is operable to drive the first running wheel 225 to rotate via the first gear 227, the second gear 228, the drive shaft 223, the universal coupling 229 and the axle 224.

Further, the adjusting assembly comprises racks 231, adjusting gears 232 and an adjusting motor 233, the racks 231 are arranged on opposite sides of the two mounting shells 221, the racks 231 are located in the sliding grooves 211 and are in sliding connection with the mounting plate 21, the adjusting gears 232 are meshed between the two racks 231, the adjusting gears 232 are in rotary connection with the mounting plate 21, the adjusting motor 233 is arranged on the left side of the mounting plate 21, and a rotating shaft of the adjusting motor 233 is connected with the adjusting gears 232. When the adjusting motor 233 works, the rack 231 and the adjusting gear 232 can drive the two mounting shells 221 to move relatively or reversely so as to change the distance between the two mounting shells.

Wherein, the side walls of the rack 231 and the mounting shell 221 are provided with guide rails 234, and the inner side wall of the sliding groove 211 is provided with guide grooves matched with the guide rails 234, so that the rack 231 and the mounting shell 221 are in sliding connection with the mounting plate 21.

Referring to fig. 5, in some embodiments, a support bar 235 is connected between an end of the rack 231 remote from the mounting case 221 and an end of the mounting case 221 remote from the rack 231, such that a triangular support structure is formed among the rack 231, the mounting case 221 and the support bar 235, thereby improving stability.

In some embodiments, the adjusting assembly may further be two electric pushers, each of the walking assemblies 22 is correspondingly provided with one electric pusher, and the electric pushers are respectively connected to the mounting disc 21 and the mounting shell 221. Furthermore, in some embodiments, the walking assembly 22 may also be configured as a self-propelled tracked chassis.

In the scheme of the utility model, a battery and a main control module are arranged on the mounting plate 21, the battery supplies power to the main control module, the air pressure detection part 40, the electromagnetic reversing valve 33, the first air pump 31 and the second air pump 32, the air pressure detection part 40 is connected with an electric wire, the electric wire is positioned at the inner side of the connecting piece 12, and the electric wire is electrically connected with the main control module. In addition, a camera electrically connected with the main control module can be further arranged on the disc 11. When the device works, the camera shoots an image of the inner wall of the pipeline and transmits the image to the main control module, so that the detection device stops moving when the disc 11 reaches the splicing position of the pipeline sections; and then the main control module controls the corresponding components to work so as to perform leakage detection. The data of the air pressure between the two discs 11 detected by the air pressure detecting element 40 along with the change of time can be stored by the main control module, and the data is read after the detecting device moves out of the pipeline, so as to determine the specific splicing leakage position.

The embodiments of the present utility model have been described in detail with reference to the accompanying drawings, but the present utility model is not limited to the above embodiments, and various changes can be made within the knowledge of one of ordinary skill in the art without departing from the spirit of the present utility model.

Claims

1. A pipe leak detection apparatus, comprising:

The sealing mechanism comprises two discs, connecting pieces and air bags, wherein the two discs are arranged at intervals left and right, the connecting pieces are arranged between the two discs, and the two discs are respectively sleeved with the air bags;

The driving mechanism is positioned on the right side of the sealing mechanism and comprises a mounting disc, a traveling assembly and an adjusting assembly, wherein the right side of the mounting disc is provided with two sliding grooves which are arranged up and down, the traveling assemblies are arranged up and down in a relative mode, the two traveling assemblies are arranged in the sliding grooves in a sliding mode, and the adjusting assembly is arranged on the mounting disc and used for adjusting the distance between the two traveling assemblies;

The air charging and discharging mechanism comprises a first air pump, a second air pump, an electromagnetic reversing valve and an air inlet nozzle, wherein the first air pump, the second air pump and the electromagnetic reversing valve are all arranged on the mounting plate, the electromagnetic reversing valve is respectively communicated with the output end of the first air pump, the two air bags and the air inlet nozzle, the input end of the second air pump is communicated with the two air bags, and the air inlet nozzle is arranged between the two circular plates;

The air pressure detection piece is arranged between the two discs.

2. The device for detecting leakage of a pipeline according to claim 1, wherein the connecting member has a hollow structure, both ends of the connecting member have external screw barrels fitted with the disc, and the side wall of the connecting member is provided with screw holes.

3. A pipe leak detection apparatus as defined in claim 2, wherein two of the connectors are provided, wherein the air pressure detecting member is mounted to a threaded hole in one of the connectors, and the air inlet nozzle is mounted to a threaded hole in the other connector.

4. A pipe leak detection apparatus as defined in claim 1, wherein the radial side of the disc defines a mounting groove, and the bladder is positioned within the mounting groove.

5. The pipe leakage detecting apparatus according to claim 1, wherein the sealing mechanism is provided with an internal thread cylinder on the right side of the right disc, the internal thread cylinder is stopped against the left side surface of the mounting disc, and the mounting disc is provided with a positioning bolt in a penetrating manner.

6. The pipe leakage detecting device according to claim 1 or 5, wherein the traveling assembly comprises a mounting shell, a traveling motor, a transmission shaft, a wheel shaft, a first traveling wheel and a second traveling wheel, the traveling motor is arranged in the mounting shell and is connected with a first gear, the transmission shaft is transversely arranged and rotatably arranged in the mounting shell, the transmission shaft is sleeved with a second gear meshed with the first gear, the wheel shaft is arranged in two and is arranged on two sides of the mounting shell, the wheel shaft is inclined to the transmission shaft and rotatably penetrates through the side wall of the mounting shell, a universal coupling is connected between one end of the wheel shaft, which is positioned in the mounting shell, and the transmission shaft, the first traveling wheel and the second traveling wheel are arranged left and right.

7. The device for detecting leakage in a pipeline according to claim 6, wherein the adjusting assembly comprises racks, an adjusting gear and an adjusting motor, the racks are arranged on opposite sides of the two mounting shells, the racks are located in the sliding grooves and are in sliding connection with the mounting plate, the adjusting gear is meshed between the two racks, the adjusting gear is in rotary connection with the mounting plate, the adjusting motor is arranged on the left side of the mounting plate, and a rotating shaft of the adjusting motor is connected with the adjusting gear.

8. The pipe leak detection apparatus of claim 7, wherein a support rod is connected between an end of the rack remote from the mounting housing and an end of the mounting housing remote from the rack.