Testing device for pipeline pressure maintaining
By combining anti-displacement devices and pressure-fixed anti-leakage devices, the problems of pipeline swaying and gas leakage during pressurization are solved, ensuring the accuracy and airtightness of pressure testing.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- XIAMEN FANGUANGYUN ELECTRONIC TECHNOLOGY CO LTD
- Filing Date
- 2025-07-02
- Publication Date
- 2026-05-12
AI Technical Summary
Existing pipeline pressure testing equipment is unable to effectively avoid pressure measurement errors and gas leaks caused by pipeline shaking during the test, which affects the accuracy and precision of the test.
By combining anti-displacement devices and pressure-down anti-leakage devices, and utilizing the cooperation of components such as motors, gears, racks, clamping plates, and pressure plates, stable clamping of pipelines and firm fixation of gas connections are achieved, preventing pipeline swaying and gas leakage.
Ensuring the pipeline maintains the correct orientation during testing prevents pressure changes and gas leaks, thus improving the accuracy and reliability of pressure testing.
Smart Images
Figure CN224231214U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of pipeline testing technology, and in particular relates to a testing device for pipeline pressure holding. Background Technology
[0002] A pipeline pressure testing device is used to check the sealing and pressure resistance of a pipeline system. It is typically used after pipeline installation, maintenance, or equipment commissioning to ensure the pipeline system can withstand operating pressure without leakage. Such devices help ensure the safe and stable operation of pipelines during use, especially in industrial, chemical, oil and gas, water supply, and heating sectors.
[0003] According to a published description of an airtightness testing device with pressure-holding function (publication number: CN 112444356A), it includes a pressure gauge installed on the pipeline and a manual air pump. The piston rod of the air pump is equipped with a braking mechanism capable of radial expansion and a power mechanism for driving the radial expansion of the braking mechanism. The power mechanism includes a power component that cooperates with the braking mechanism, a manual component installed on the air pump handle, and a steel wire connecting the power component and the manual component. The basic principle of the pipeline pressure-holding testing device is to apply a certain pressure to the inside of the pipeline and maintain that pressure for a period of time, observing whether the pipeline experiences a pressure drop. When injecting pressure into the pipeline, the pipeline may shift, affecting the pressure injection and thus affecting the pipeline test. Through the cooperation between the aforementioned braking mechanism, power mechanism, and other components, it is difficult to effectively prevent pipeline shaking, difficult to clamp the two sides of the pipeline, and difficult to ensure that the pipeline maintains the correct posture throughout the test, which requires improvement. Utility Model Content
[0004] The purpose of this invention is to provide a testing device for pipeline pressure maintenance. Through the cooperation of components such as the motor, pressurizing air pipe, and tester inside the anti-displacement device, the clamping plate clamps both sides of the pipeline when it moves relative to the gas, preventing the pipeline from shaking during gas injection. When the pipeline shakes during pressurization, it may lead to pressure measurement errors or inaccurate testing. The clamping action of the clamping plate can effectively prevent the pipeline from shaking, thereby ensuring the accuracy of the pressure test and ensuring that the pipeline maintains the correct posture during the test. This avoids pressure changes or inaccurate test results due to changes in pipeline position, thus solving the existing problems.
[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:
[0006] This utility model relates to a testing device for pipeline pressure maintenance, comprising a support leg, an operating platform fixedly connected to the top of the support leg, an anti-displacement device on the top of the operating platform, the anti-displacement device comprising an arc-shaped rod, one end of which is fixedly connected to the bottom of the operating platform, and a motor fixedly connected to the end of the arc-shaped rod away from the operating platform. A gear is fixedly connected to the output shaft of the motor. A rack one and a rack two are slidably connected to the bottom of the operating platform. A connecting rod is fixedly connected to one end of the rack one, a square plate is fixedly connected to the top of the connecting rod, a clamping plate is fixedly connected to the side of the square plate, a connecting rod is fixedly connected to one end of the rack two, a tester is fixedly connected to the top of the operating platform, a pressurizing air pipe passes through the side of the tester, a connecting pipe passes through one end of the pressurizing air pipe, and a frame plate is fixedly connected to the top of the operating platform, with a pipe on the top of the frame plate.
[0007] Furthermore, there are two clamping plates and block plates, which are symmetrical to each other along the vertical central axis of the operating table. The pipe is located on the displacement trajectory of the clamping plate. There are two pressurization pipes. A switch is provided on the side of the motor. The two clamping plates are beneficial for clamping both sides of the pipe.
[0008] Furthermore, several racks are provided, arranged in pairs and symmetrically arranged along the vertical central axis of the operating platform. Rack one and gear mesh with each other, rack two and gear mesh with each other, and the racks are used to support the pipes on the top of the operating platform for inflation and pressure holding tests.
[0009] Furthermore, a pressure-down leak-proof device is fixedly connected to the top of the operating table. The pressure-down leak-proof device includes a bracket, the bottom of which is fixedly connected to the top of the operating table. A turntable is rotatably connected to the inner wall of the bracket. An inclined plate is fixedly connected to the circumference of the turntable. A pressure plate is fixedly connected to the circumference of the turntable. An L-shaped rod is fixedly connected to the top of the clamping plate. A pressing rod is fixedly connected to the side of the L-shaped rod. By pressing down from top to bottom with the pressing rod, the connection between the connecting pipe and the pipeline is pressed down to prevent gas leakage from the pipeline used for detection.
[0010] Furthermore, the inclined plate is located on the displacement trajectory of the extrusion rod, and the connecting pipe is located on the displacement trajectory of the lower pressure plate. This design is beneficial for the extrusion rod to press against the inclined plate when it moves, thus pressing the inclined plate downwards.
[0011] Furthermore, the pressure-prevention leak-proof device is provided in two sets, which are symmetrical to each other along the vertical central axis of the operating table. A pressure gauge is provided on the circumference of the pressurization pipe, which is convenient for real-time monitoring of the air pressure.
[0012] Furthermore, a spring is fixedly connected to the side of the inclined plate, and the end of the spring away from the inclined plate is fixedly connected to the top of the lower pressure plate. The design of the spring is beneficial to the automatic reset of the turntable and the lower pressure plate when the inclined plate is not squeezed.
[0013] This utility model has the following beneficial effects:
[0014] This invention utilizes the coordinated operation of components such as the motor, pressurizing air pipe, and tester within the anti-displacement device to clamp both sides of the pipe when the clamping plate moves relative to it, preventing the pipe from shaking during gas injection. Shaking during pressurization can lead to pressure measurement errors or inaccurate testing. The clamping action of the clamping plate effectively prevents pipe shaking, thus ensuring the accuracy of the pressure test and maintaining the correct posture of the pipe throughout the test, avoiding pressure changes or inaccurate test results due to pipe position variations.
[0015] This invention utilizes the cooperation between components such as the internal support, turntable, and pressure plate of the anti-leakage device to ensure that the connecting pipe is pressed down when the pressure plate rotates downwards, preventing gas leakage during gas injection. By allowing the pressure plate to rotate downwards and press down on the connecting pipe, the connection between the connecting pipe and the pressurization pipe is firmly fixed, thus preventing gas leakage. This design ensures that gas will not leak out from the pipeline or interface during inflation or pressurization testing, thereby ensuring the airtightness of the pipeline during gas injection and improving the accuracy and reliability of the test.
[0016] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description
[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0018] Figure 1 This is a three-dimensional appearance structure diagram of the present utility model;
[0019] Figure 2 This is a three-dimensional bottom view of the operating table structure of this utility model;
[0020] Figure 3 This utility model Figure 2 A three-dimensional magnified structural diagram of A in the middle;
[0021] Figure 4This is a three-dimensional enlarged structural diagram of the pressurization tube of this utility model;
[0022] Figure 5 This utility model Figure 4 A three-dimensional magnified structural diagram of B.
[0023] The attached diagram lists the components represented by each number as follows:
[0024] 1. Outrigger; 2. Operating platform; 3. Anti-displacement device; 31. Arc rod; 32. Motor; 33. Switch; 34. Gear; 35. Rack one; 36. Rack two; 37. Connecting rod; 38. Square plate; 39. Clamping plate; 310. Frame plate; 311. Pipe; 312. Tester; 313. Pressurizing air pipe; 314. Pressure gauge; 315. Connecting pipe; 4. Downward pressure anti-leakage device; 41. Support; 42. Turntable; 43. Inclined plate; 44. Downward pressure plate; 45. Spring; 46. L-shaped rod; 47. Extrusion rod. Detailed Implementation
[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.
[0026] Please see Figure 1-5 This utility model relates to a testing device for pipeline pressure holding, comprising a support leg 1, an operating platform 2 fixedly connected to the top of the support leg 1, an anti-displacement device 3 installed on the top of the operating platform 2, the anti-displacement device 3 including an arc-shaped rod 31, one end of the arc-shaped rod 31 fixedly connected to the bottom of the operating platform 2, and a motor 32 fixedly connected to the end of the arc-shaped rod 31 away from the operating platform 2, a gear 34 fixedly connected to the output shaft of the motor 32, and two racks 35 and 36 slidingly connected to the bottom of the operating platform 2. 6. One end of rack 35 is fixedly connected to a connecting rod 37, the top of the connecting rod 37 is fixedly connected to a block plate 38, and the side of the block plate 38 is fixedly connected to a clamping plate 39. One end of rack 36 is fixedly connected to a connecting rod 37. The top of the operating table 2 is fixedly connected to a tester 312. The side of the tester 312 is penetrated by a pressurizing air pipe 313, and one end of the pressurizing air pipe 313 is penetrated by a connecting pipe 315. The top of the operating table 2 is fixedly connected to a frame plate 310, and a pipe 311 is provided on the top of the frame plate 310.
[0027] There are two clamping plates 39 and two square plates 38, which are symmetrical to each other along the vertical central axis of the operating table 2. The pipe 311 is located on the displacement trajectory of the clamping plate 39. There are two pressurizing pipes 313. A switch 33 is provided on the side of the motor 32. The two clamping plates 39 are conducive to clamping the two sides of the pipe 311.
[0028] Several support plates 310 are provided, arranged in pairs and symmetrically arranged along the vertical central axis of the operating platform 2. Rack 1 35 and gear 34 mesh with each other, and rack 2 36 and gear 34 mesh with each other. The support plates 310 are used to support the pipe 311 on the top of the operating platform 2 for inflation and pressure holding tests.
[0029] A pressure leak prevention device 4 is fixedly connected to the top of the operating table 2. The pressure leak prevention device 4 includes a bracket 41. The bottom of the bracket 41 is fixedly connected to the top of the operating table 2. A turntable 42 is rotatably connected to the inner wall of the bracket 41. An inclined plate 43 is fixedly connected to the circumference of the turntable 42. A pressure plate 44 is fixedly connected to the circumference of the turntable 42. An L-shaped rod 46 is fixedly connected to the top of the clamping plate 39. A pressing rod 47 is fixedly connected to the side of the L-shaped rod 46. By pressing down from top to bottom with the pressing rod 47, the connection between the connecting pipe 315 and the pipeline 311 is pressed down to prevent gas leakage from the pipeline 311 used for detection.
[0030] The inclined plate 43 is located on the displacement trajectory of the extrusion rod 47, and the connecting pipe 315 is located on the displacement trajectory of the lower pressure plate 44. This design is beneficial for the extrusion rod 47 to press the inclined plate 43 when it moves, thus pressing the inclined plate 43 downward.
[0031] Two sets of pressure-prevention devices 4 are provided and are symmetrical to each other along the vertical central axis of the operating platform 2. A pressure gauge 314 is provided on the circumference of the pressurization pipe 313, which is convenient for real-time monitoring of air pressure.
[0032] A spring 45 is fixedly connected to the side of the inclined plate 43. The end of the spring 45 away from the inclined plate 43 is fixedly connected to the top of the lower pressure plate 44. The design of the spring 45 is conducive to the automatic reset of the turntable 42 and the lower pressure plate 44 when the inclined plate 43 is not squeezed.
[0033] One specific application of this embodiment is as follows: The basic principle of the pipeline pressure holding test device is to apply a certain pressure to the inside of the pipeline 311 and maintain that pressure for a period of time, observing whether the pressure in the pipeline 311 drops. If the pressure drops, it indicates that there is a leak in the pipeline 311. Through the pressure source, the pressurization pipe 313 injects gas (such as nitrogen) or liquid (such as water) into the pipeline 311, gradually increasing the pressure. When pressure is injected into the pipeline 311, the pipeline 311 may shift, affecting the pressure injection and thus affecting the test of the pipeline 311. When the motor 32 is started, when the motor 32 reverses, it will drive the gear 34 to reverse. The gear 34 and rack 35 mesh with each other, and rack 36 and gear 34 mesh with each other. When the gear 34 reverses, it will drive the gear 34 to reverse. The relative movement of rack 1 (35) and rack 2 (36) causes relative movement of block plate 38 and clamping plate 39. Pipe 311 is located on the movement trajectory of clamping plate 39. When clamping plate 39 moves relative to pipe 311, it clamps both sides of pipe 311 to prevent it from shaking when gas is injected. If pipe 311 shakes during pressurization, it may cause pressure measurement errors or inaccurate testing. The clamping action of clamping plate 39 on pipe 311 can effectively prevent pipe 311 from shaking, thereby ensuring the accuracy of pressure testing and ensuring that pipe 311 always maintains the correct posture during testing, avoiding pressure changes or inaccurate test results due to changes in the position of pipe 311.
[0034] When the clamping plate 39 moves relative to the pressure plate, it will drive the L-shaped rod 46 and the extrusion rod 47 to move. The inclined plate 43 is located on the movement trajectory of the extrusion rod 47. When the extrusion rod 47 moves, it will squeeze the inclined plate 43, causing the inclined plate 43 to move downward. The downward movement of the inclined plate 43 will drive the turntable 42 to rotate downward. The downward rotation of the turntable 42 will drive the lower pressure plate 44 to rotate downward. A connecting pipe 315 is provided on the pressurizing air pipe 313. The connecting pipe 315 is used to connect the pressurizing air pipe 313 and the pipe 311. The connecting pipe 315 is located on the lower... On the movement trajectory of the pressure plate 44, when the pressure plate 44 rotates downward, it will press down on the connecting pipe 315 to prevent gas leakage during gas injection. By allowing the pressure plate 44 to rotate downward and press down on the connecting pipe 315, it can be ensured that the connection between the connecting pipe 315 and the pressurization pipe 313 is firmly fixed, thereby avoiding gas leakage. This design ensures that gas will not leak out from the pipeline or interface during the inflation or pressurization test, thereby ensuring the airtightness of the pipeline during the gas injection process and improving the accuracy and reliability of the test.
[0035] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0036] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.
Claims
1. A testing device for pipeline pressure holding, comprising a support leg (1), characterized in that: The top of the support leg (1) is fixedly connected to an operating platform (2), and the top of the operating platform (2) is provided with an anti-displacement device (3). The anti-displacement device (3) includes an arc-shaped rod (31), one end of which is fixedly connected to the bottom of the operating table (2). A motor (32) is fixedly connected to the end of the arc-shaped rod (31) away from the operating table (2). A gear (34) is fixedly connected to the output shaft of the motor (32). A rack (35) is slidably connected to the bottom of the operating table (2). A rack (36) is slidably connected to the bottom of the operating table (2). A connecting rod (37) is fixedly connected to one end of the rack (35). The top of the connecting rod (37)... A square plate (38) is fixedly connected to the main body, and a clamping plate (39) is fixedly connected to the side of the square plate (38). A connecting rod (37) is fixedly connected to one end of the rack (36). A tester (312) is fixedly connected to the top of the operating table (2). A pressurizing air pipe (313) passes through the side of the tester (312). A connecting pipe (315) passes through one end of the pressurizing air pipe (313). A frame plate (310) is fixedly connected to the top of the operating table (2). A pipe (311) is provided on the top of the frame plate (310).
2. The testing device for pipeline pressure holding according to claim 1, characterized in that, Two clamping plates (39) and two square plates (38) are provided and are symmetrical to each other along the vertical central axis of the operating table (2). The pipe (311) is located on the displacement trajectory of the clamping plate (39). Two pressurizing air pipes (313) are provided. A switch (33) is provided on the side of the motor (32).
3. The testing device for pipeline pressure holding according to claim 2, characterized in that, The frame plate (310) is provided in several pairs, and is symmetrical to each other along the vertical central axis of the operating table (2). The rack one (35) and the gear (34) mesh with each other, and the rack two (36) and the gear (34) mesh with each other.
4. The testing device for pipeline pressure holding according to claim 3, characterized in that, The top of the operating table (2) is fixedly connected to a pressure leak prevention device (4). The pressure leak prevention device (4) includes a bracket (41). The bottom of the bracket (41) is fixedly connected to the top of the operating table (2). A turntable (42) is rotatably connected to the inner wall of the bracket (41). An inclined plate (43) is fixedly connected to the circumferential surface of the turntable (42). A pressure plate (44) is fixedly connected to the circumferential surface of the turntable (42). An L-shaped rod (46) is fixedly connected to the top of the clamping plate (39). An extrusion rod (47) is fixedly connected to the side of the L-shaped rod (46).
5. The testing device for pipeline pressure holding according to claim 4, characterized in that, The inclined plate (43) is located on the displacement trajectory of the extrusion rod (47), and the connecting pipe (315) is located on the displacement trajectory of the lower pressure plate (44).
6. The testing device for pipeline pressure holding according to claim 5, characterized in that, The pressure leak prevention device (4) is provided in two sets, and is symmetrical to each other along the vertical central axis of the operating table (2). A pressure gauge (314) is provided on the circumferential surface of the pressurizing air pipe (313).
7. The testing device for pipeline pressure holding according to claim 6, characterized in that, A spring (45) is fixedly connected to the side of the inclined plate (43), and the end of the spring (45) away from the inclined plate (43) is fixedly connected to the top of the lower pressure plate (44).