A pipeline pressure testing apparatus
By designing a pipeline pressure testing device, which utilizes a screw-driven sliding part and a raised key, the problem of untested water supply pipelines before on-site construction was solved, enabling pressure testing of the inner and outer walls of the pipeline and ensuring construction quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANXI INT ECONOMIC & TECH COOP CO LTD
- Filing Date
- 2025-03-28
- Publication Date
- 2026-06-09
AI Technical Summary
In existing technologies, water supply pipelines are not pressure tested before on-site construction, making it difficult to detect potential quality problems.
A pipeline pressure testing device was designed, which uses a screw-driven sliding part and a raised key to apply pressure to the inner and outer walls of the pipeline for testing. The device is tested by contacting the pipeline with an arc-shaped support part, and the pipeline quality is judged by observing the recovery after the pressure is removed.
It enables pressure detection on the inner and outer walls of pipelines, allowing for timely detection of quality issues and prevention of potential quality hazards during construction.
Smart Images
Figure CN224341337U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pressure detection technology, specifically to a pipeline pressure testing device. Background Technology
[0002] Pressure testing of water supply pipelines typically employs mechanical expansion tools, such as the pressure pipeline testing equipment disclosed in Chinese authorized patent, publication number: CN116087321A. Furthermore, this type of pipeline pressure testing is conducted in a production environment, whereas pre-installed water supply pipes purchased for on-site construction are not typically tested. Utility Model Content
[0003] The purpose of this invention is to provide a pipeline pressure testing device to address the aforementioned problems.
[0004] To achieve the above objectives, this utility model provides the following technical solution: a pipeline pressure testing device, comprising:
[0005] A screw that rotates circumferentially under drive;
[0006] The sliding portion slides vertically and is symmetrically distributed about the center of the screw.
[0007] A movable part threaded onto the screw, wherein the outer walls on opposite sides of the movable part are fixedly fitted with protruding keys that slide within grooves opened on opposite sides of the sliding part.
[0008] The grooves on both sliding parts are inclined and in opposite directions.
[0009] Preferably, it also includes a rectangular frame, which includes a guide rail, and the guide rail is symmetrically provided with grooves for the two sliding parts to slide respectively;
[0010] Furthermore, one end of the screw is rotatably mounted on one of the guide rails and extends out from the other guide rail, with a handle fixedly installed at the extended end.
[0011] Preferably, the rectangular frame further includes limiting portions welded to both ends of the two guide rail rods.
[0012] Preferably, the moving part has a triangular structure, and the number of protruding keys on one side is three, which are distributed at the three vertices of the moving part, and the two protruding keys on one side are located in the waist groove.
[0013] Preferably, the sidewall of the sliding part is parallel to the waist groove.
[0014] Preferably, a horizontal part is fixedly installed on each of the two sliding parts on opposite sides, and a top support part is fixedly installed on the top of the horizontal part.
[0015] Preferably, the end of the top support is equipped with an arc-shaped support.
[0016] Preferably, the outer wall of the arc-shaped support is fixedly fitted with a rigid rubber sheath.
[0017] In the above technical solution, the pipeline pressure testing device provided by this utility model has the following beneficial effects: the moving part moves along the screw axis by the screw drive, so that the protruding key on the moving part cooperates with the waist groove of the sliding part to move relative to each other, thereby realizing the detection of pressure inside the pipeline and the detection of pressure on the outer wall of the pipeline. Attached Figure Description
[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.
[0019] Figure 1 A schematic diagram of the overall structure provided for an embodiment of this utility model;
[0020] Figure 2 Provided for the embodiments of this utility model Figure 1 A schematic diagram of the explosion structure.
[0021] Explanation of reference numerals in the attached figures:
[0022] 1. Screw; 2. Sliding part; 21. Waist groove; 3. Moving part; 31. Raised key; 4. Rectangular frame; 41. Guide rail rod; 42. Limiting part; 5. Handle; 6. Horizontal part; 7. Top support part; 8. Arc-shaped support part. Detailed Implementation
[0023] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.
[0024] like Figure 1-2 As shown, a pipeline pressure testing device includes:
[0025] A screw 1 that is driven to rotate circumferentially;
[0026] The sliding part 2 slides vertically and is symmetrically distributed about the center of the screw 1;
[0027] The movable part 3 is threaded onto the screw 1, and the outer walls on both sides of the movable part 3 are fixedly fitted with protruding keys 31 that extend into the grooves 21 opened on the outer walls on both sides of the sliding part 2 and slide within them.
[0028] The waist grooves 21 on the two sliding parts 2 are both inclined and in opposite directions.
[0029] Specifically, the screw 1 mentioned above can be driven by a motor or manually.
[0030] Furthermore, the moving part 3 has a triangular structure, and there are three protruding keys 31 on one side, which are distributed at the three vertices of the moving part 3, and the two protruding keys 31 on one side are located in the waist groove 21.
[0031] Secondly, the sidewall of the sliding part 2 is parallel to the waist groove 21.
[0032] In the above technology, the moving part 3 is driven by the screw 1 to move along the axial direction of the screw 1, so that the protruding key 31 on the moving part 3 cooperates with the waist groove 21 of the sliding part 2 to move relative to each other, thereby realizing the detection of pressure inside the pipeline and the detection of pressure on the outer wall of the pipeline.
[0033] As a further embodiment of this utility model, the rectangular frame 4 includes guide rails 41 and limiting portions 42 respectively welded to both ends of the two guide rails 41. The guide rails 41 are symmetrically provided with sliding grooves for the two sliding portions 2 to slide respectively. Moreover, one end of the screw 1 is rotatably disposed on one guide rail 41 and extends out from the other guide rail 41, and a handle 5 is fixedly installed at the extended end.
[0034] Specifically, in the embodiment, the guide rod 41 provides the direction for the sliding part 2 to move, and the limiting part 42 limits the maximum opening and closing diameter of the two sliding parts 2 to prevent the sliding part 2 from disengaging from the guide rod 41.
[0035] As a further embodiment of this utility model, two sliding parts 2 are respectively fixedly installed on opposite sides of a horizontal part 6, and a top support part 7 is fixedly installed on the top of the horizontal part 6. An arc-shaped support part 8 is installed at the end of the top support part 7.
[0036] Specifically, in the embodiment, the arc-shaped support 8 can abut against the inner wall of the detection pipe or be stuck on the outer wall of the pipe. That is, the two arc-shaped support 8 are close to each other and thus stuck on the pipe to apply pressure, thereby realizing pressure detection on the inner wall of the pipe and pressure detection on the outer wall of the pipe.
[0037] Specifically, a rigid rubber sheath is fixedly installed on the outer wall of the arc-shaped support 8. This provides damping force upon contact and prevents damage to the pipe.
[0038] It should be noted that the pipeline inspection described above involves applying pressure to the pipeline and observing whether it quickly recovers its shape after the pressure is released to determine pipeline quality. The specific number of rotations of handle 5 corresponding to which type of pipeline is being inspected is determined in advance and compiled into a relevant reference data table for subsequent implementation.
[0039] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.
Claims
1. A pipeline pressure testing device, characterized in that, include: A screw that is driven to rotate circumferentially (1); The sliding part (2) slides vertically and is symmetrically distributed about the center of the screw (1). The movable part (3) is threaded onto the screw (1), and the outer walls of the movable part (3) on both sides are fixedly installed with protruding keys (31) that extend into the waist grooves (21) opened on the outer walls of the sliding part (2) on both sides. The waist grooves (21) on the two sliding parts (2) are inclined and in opposite directions.
2. The pipeline pressure testing device according to claim 1, characterized in that, It also includes a rectangular frame (4), which includes a guide rail (41), and the guide rail (41) is symmetrically provided with grooves for the two sliding parts (2) to slide respectively; One end of the screw (1) is rotatably mounted on one of the guide rods (41) and extends out from the other guide rod (41), and a handle (5) is fixedly installed at the extended end.
3. The pipeline pressure testing device according to claim 2, characterized in that, The rectangular frame (4) also includes limiting parts (42) respectively welded to both ends of the two guide rail rods (41).
4. The pipeline pressure testing device according to claim 1, characterized in that, The moving part (3) has a triangular structure, and there are three protruding keys (31) on one side, which are distributed at the three vertices of the moving part (3), and the two protruding keys (31) on one side are located in the waist groove (21).
5. A pipeline pressure testing device according to claim 1, characterized in that, The sidewall of the sliding part (2) is parallel to the waist groove (21).
6. The pipeline pressure testing device according to claim 1, characterized in that, A horizontal part (6) is fixedly installed on the opposite side of each of the two sliding parts (2), and a top support part (7) is fixedly installed on the top of the horizontal part (6).
7. A pipeline pressure testing device according to claim 6, characterized in that, An arc-shaped support (8) is installed at the end of the top support (7).
8. A pipeline pressure testing device according to claim 7, characterized in that, The outer wall of the arc-shaped support (8) is fixedly fitted with a hard rubber outer sheath.