Centering mechanism for pressure pipeline detection

Abstract

The utility model relates to the technical field of centering mechanisms, in particular to a centering mechanism for pressure pipeline detection, which solves the problems mentioned in the background technology and comprises a first threaded rod, one end of the first threaded rod is fixedly connected with a top plate, and a push ring is sleeved on the first threaded rod. The edge of the top plate is fixedly connected with a plurality of evenly-distributed mounting frames, the end of the supporting frame is rotationally connected with a sliding assembly used for making contact with the inner wall of a pipeline, a connecting rod is rotationally connected between the supporting frame and the push ring, the first threaded rod is in threaded connection with a threaded pipe, and the threaded pipe and the top plate are arranged on the two sides of the push ring correspondingly. A threaded pipe is rotated on a first threaded rod, a connecting rod is driven to push a supporting frame laterally, tension is formed between a rolling wheel and the interior of a pipeline, a top plate is arranged at the axial center position of the pipeline, then a detection probe is located at the center position of the pipeline, and the accuracy and stability during pressure pipeline detection are greatly improved; and meanwhile, a worker can operate conveniently.

Description

TECHNICAL FIELD

[0001] The utility model relates to a centering mechanism technical field, specifically is a kind of centering mechanism for pressure pipeline detection. BACKGROUND

[0002] Pressure pipeline refers to all the pipes that bear internal pressure or external pressure. Since pressure pipelines need to bear pressure, special detection instruments are used to detect the interior of pressure pipelines after production to ensure that the pressure pipelines are qualified products. Currently, when pressure pipelines are detected, a detection probe is usually held by hand to detect the interior of pressure pipelines. However, this method has poor centering effect, which can result in unsatisfactory accuracy and stability during pressure pipeline detection, and is inconvenient for operators to operate. Therefore, a centering mechanism for pressure pipeline detection is proposed. UTILITY MODEL CONTENT

[0003] (I) Technical problem solved

[0004] In view of the deficiencies of the prior art, the utility model provides a centering mechanism for pressure pipeline detection, which solves the problems mentioned in the background.

[0005] (II) Technical scheme

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a centering mechanism for pressure pipeline detection, comprising a first threaded rod, one end of the first threaded rod is fixedly connected with a top plate, a push ring is sleeved on the first threaded rod, a plurality of evenly distributed mounting frames are fixedly connected to the edge of the top plate, a support frame is rotatably connected to the mounting frame, a sliding assembly for contacting the inner wall of the pipeline is rotatably connected to the end of the support frame, a connecting rod is rotatably connected between the support frame and the push ring, a threaded tube is threadedly connected to the first threaded rod, and the threaded tube and the top plate are respectively arranged on the two sides of the push ring, a detection probe is installed on the top plate, the threaded tube is rotated on the first threaded rod, the push ring is pushed, the connecting rod and the support frame are linked, so that tension is formed between the sliding assembly and the inner wall of the pipeline.

[0007] Further, a plurality of handle assemblies are threadedly connected to the first threaded rod, and the handle assemblies can be connected to each other to extend the overall length of the handle assemblies.

[0008] Further, the handle assembly comprises a rod body, a threaded cylinder is fixedly connected to one end of the rod body, and a threaded column is fixedly connected to the other end of the rod body, and the threaded cylinder and the threaded column of the two connected handle assemblies are threadedly connected.

[0009] Further, an auxiliary support assembly is slidably connected to the rod body, and a bolt is threadedly connected to the auxiliary support assembly, and the tension is formed between the auxiliary support assembly and the rod body by rotating the bolt on the auxiliary support assembly.

[0010] Further, the sliding assembly comprises a U-shaped frame, and rollers are installed at two ends of the U-shaped frame to contact the inner wall of the pipeline.

[0011] Further, the auxiliary supporting assembly comprises a connecting barrel, a second threaded rod is threadedly connected at an opening of the connecting barrel, and a sliding ring is fixedly connected at the other end of the connecting barrel and sleeved on the rod body and in sliding connection, and a ball is embedded at the end of the second threaded rod in rotary connection.

[0012] (Three) beneficial effects

[0013] Compared with the prior art, the utility model provides a centering mechanism for pressure pipeline detection, which has the following beneficial effects:

[0014] The centering mechanism for pressure pipeline detection is provided with a detection probe installed at the top plate, a threaded pipe is rotated on the first threaded rod, the connecting rod is driven to push the support frame to the side, and the tension is formed between the roller and the inside of the pipeline, so that the top plate is placed at the axial center position of the pipeline, and the detection probe is placed at the center position of the pipeline, which greatly improves the accuracy and stability of the pressure pipeline detection, and facilitates the operation of the staff. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a schematic view of the three-dimensional structure of the utility model;

[0016] Figure 2 It is a schematic view of the left view structure of the utility model;

[0017] Figure 3 It is a schematic view of the utility model Figure 1 A local enlarged structure shown in the utility model.

[0018] In the figure: 1, first threaded rod; 2, top plate; 3, push ring; 4, mounting frame; 5, support frame; 6, connecting rod; 7, sliding assembly; 8, threaded pipe; 9, handlebar assembly; 10, auxiliary supporting assembly; 11, bolt; 12, U-shaped frame; 13, roller; 14, rod body; 15, threaded barrel; 16, threaded column; 17, connecting barrel; 18, second threaded rod; 19, ball; 20, sliding ring. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0020] Please refer toFigures 1-3 The utility model discloses a centering mechanism for pressure pipeline detection, including first threaded rod 1, one end of first threaded rod 1 is fixedly connected with the top plate 2, and the first threaded rod 1 is equipped with the push ring 3, the edge of top plate 2 is fixedly connected with a plurality of evenly distributed mounting bracket 4, and the mounting bracket 4 is rotatably connected with the support frame 5, and the end of support frame 5 is rotatably connected with the sliding assembly 7 for contacting the inner wall of pipeline, and the sliding assembly 7 includes U-shaped frame 12

[0021] The rotatable connection has connecting rod 6 between support frame 5 and push ring 3, and the first threaded rod 1 is threadedly connected with threaded tube 8, and threaded tube 8 and top plate 2 are placed at the both sides of push ring 3 respectively, and the detection probe is installed on top plate 2, and the threaded tube 8 is rotated on the first threaded rod 1, and push ring 3 is pushed, and connecting rod 6 pushes support frame 5 and opens outward, and roller 13 is extruded on the inner wall of pipeline, to form the tension between roller 13 and the inner wall of pipeline, and then make the detection probe be placed in the axial center position of pipeline.

[0022] The first threaded rod 1 is threadedly connected with the grip bar assembly 9, and the grip bar assembly 9 is provided with a plurality of, and the grip bar assembly 9 includes rod body 14, and one end of rod body 14 is fixedly connected with threaded cylinder 15, and the other end is fixedly connected with threaded column 16, and the threaded cylinder 15 and threaded column 16 of two mutual connection grip bar assembly 9 are threadedly connected, and the threaded cylinder 15 is threadedly connected with the first threaded rod 1.

[0023] The grip bar assembly 9 is installed on the first threaded rod 1, and the threaded cylinder 15 is screwed on the first threaded rod 1, so that the grip bar assembly 9 is connected with the first threaded rod 1, so that the personnel hand holds the rod body 14 board detection probe and inserts into the pipeline inside, in order to detect the deeper pipeline inside, another grip bar assembly 9 is installed on the threaded column 16 of the original grip bar assembly 9, so that its threaded cylinder 15 is rotated and is screwed on the threaded column 16 of the original grip bar assembly 9, realizes the length extension of grip bar assembly 9, so as to increase the length of grip bar assembly 9 according to the need.

[0024] The rod body 14 is slidably connected with auxiliary support assembly 10, and the auxiliary support assembly 10 includes connecting cylinder 17, and the opening of one end of connecting cylinder 17 is threadedly connected with second threaded rod 18, and the other end is fixedly connected with slip ring 20 that is sleeved on rod body 14 and is slidably connected, and the end of second threaded rod 18 is embedded with rotatably connected ball 19, and the slip ring 20 is threadedly connected with bolt 11.

[0025] The grip bar assembly 9 is inserted into the pipeline inside, the second threaded rod 18 is rotated on the connecting cylinder 17, so that the ball 19 is contacted with the pipeline inside, then the bolt 11 is rotated, so that the slip ring 20 and the rod body 14 form the tension, the function of fixed auxiliary support assembly 10 is played, the auxiliary support assembly 10 is used for supporting rod body 14, prevents the influence measurement accuracy due to the gravity of grip bar assembly 9 itself.

[0026] In summary, the centering mechanism for pressure pipeline detection, in use, installs the detection probe on the outer wall of the top plate 2, inserts the device into the pipeline, then rotates the threaded tube 8 on the first threaded rod 1, pushes the push ring 3 with the threaded tube 8, slides along the first threaded rod 1, drives the support frame 5 with the connecting rod 6, supports the roller 13 on the rolling inner wall, and forms tension, so as to place the detection probe in the axial center position of the pipeline.

[0027] Then install the threaded cylinder 15 of the handle assembly 9 on the first threaded rod 1, rotate the second threaded rod 18 on the connecting cylinder 17, increase the overall length of the second threaded rod 18 and the connecting cylinder 17, make the ball 19 contact with the pipeline, then rotate the bolt 11 to fix the sliding ring 20 on the rod body 14, push the device into the pipeline by holding the rod body 14, and make the roller 13 rotate forward.

[0028] When it is necessary to detect the deeper inside of the pipeline, install the length-increased handle assembly 9 on the original threaded column 16 of the handle assembly 9, install the threaded cylinder 15 on the original threaded column 16, and operate the auxiliary support assembly 10 to support the length-increased handle assembly 9 on the pipeline, according to the detection needs, extend the rod body 14 in sequence, so as to detect the inside of the pipeline.

[0029] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the utility model, the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A centering mechanism for pressure pipeline inspection, comprising a first threaded rod (1), characterized in that: One end of the first threaded rod (1) is fixedly connected with a top plate (2), a push ring (3) is sleeved on the first threaded rod (1), a plurality of uniformly distributed mounting racks (4) are fixedly connected to the edge of the top plate (2), a support frame (5) is rotatably connected to the mounting rack (4), a sliding assembly (7) for contacting the inner wall of the pipeline is rotatably connected to the end of the support frame (5), a connecting rod (6) is rotatably connected between the support frame (5) and the push ring (3), a threaded pipe (8) is threadedly connected to the first threaded rod (1), and the threaded pipe (8) and the top plate (2) are respectively arranged on the two sides of the push ring (3), a detection probe is installed on the top plate (2), the threaded pipe (8) is rotated on the first threaded rod (1), the push ring (3) is pushed, the connecting rod (6) and the support frame (5) are linked, so that the sliding assembly (7) and the inner wall of the pipeline form a tension.

2. The centering mechanism for pressure pipeline inspection according to claim 1, characterized in that: A plurality of handle bar assemblies (9) are threadedly connected to the first threaded rod (1) and can be connected to each other to extend the overall length of the handle bar assemblies (9).

3. The centering mechanism for pressure pipeline inspection according to claim 2, characterized in that: The handle bar assembly (9) comprises a rod body (14), one end of the rod body (14) is fixedly connected with a threaded cylinder (15), the other end is fixedly connected with a threaded column (16), and the threaded cylinder (15) and the threaded column (16) on the two connected handle bar assemblies (9) are threadedly connected.

4. The centering mechanism for inspection of pressure pipelines according to claim 3, characterized in that: An auxiliary support assembly (10) is slidably connected to the rod body (14), and a bolt (11) is threadedly connected to the auxiliary support assembly (10), and by rotating the bolt (11) on the auxiliary support assembly (10), a tension is formed between the auxiliary support assembly (10) and the rod body (14).

5. The centering mechanism for pressure pipe inspection according to claim 1, characterized in that: The sliding assembly (7) comprises a U-shaped frame (12), and rollers (13) for contacting the inner wall of the pipeline are installed at both ends of the U-shaped frame (12).

6. The centering mechanism for pressure pipeline inspection according to claim 4, characterized in that: The auxiliary support assembly (10) comprises a connecting cylinder (17), a second threaded rod (18) is threadedly connected to the opening at one end of the connecting cylinder (17), and a sliding ring (20) is slidably connected to the rod body (14) and fixedly connected to the other end of the connecting cylinder (17), and a plurality of rotatably connected rolling balls (19) are embedded in the end of the second threaded rod (18).

Images