Pipeline joint detection device

Abstract

The utility model relates to the technical field of pipeline detection, in particular to a pipeline joint detection device which comprises a fixing frame and a detector arranged on the fixing frame. The clamping device comprises a plurality of clamping plates used for clamping the pipeline joints and a driving mechanism used for driving the clamping plates to clamp the pipeline joints, the two sets of clamping plates are oppositely arranged, and each set of clamping plates comprises at least two clamping plates. The clamping plate comprises an arc-shaped section used for clamping a circular pipeline joint and a linear section arranged on the arc-shaped section and used for clamping a rectangular pipeline joint. The pipeline joint detection device has the advantages that damage to the pipeline joint and abrasion to the surface of the pipeline joint can be reduced, and therefore the detection convenience of the pipeline joint is improved.

Description

Technical Field

[0001] This application relates to the technical field of pipeline inspection, and in particular to a pipeline joint inspection device. Background Technology

[0002] Pipe joints are structures used to connect two pipes. Related pipe joint products can be categorized as follows: Rubber joints: flexible rubber joints, double-ball rubber joints, reducing rubber joints, and eccentric rubber joints; Waterproof sleeves: flexible waterproof sleeves, rigid waterproof sleeves, and extended waterproof sleeves; Force transmission joints: double-flange force transmission joints, single-flange force transmission joints, and detachable double-flange force transmission joints; Expansion joints: cast iron expansion joints, steel expansion joints, double-flange limiting expansion joints, single-flange limiting expansion joints, gland-type expansion joints, and gland-limiting expansion joints; Stainless steel corrugated compensators: metal flexible hoses, direct-buried corrugated compensators, small tie-rod corrugated compensators, and large tie-rod corrugated compensators. Pipe joints are widely used in water supply, drainage, power, metallurgy, urban construction, petroleum, chemical, and environmental protection industries, as well as in the construction of water supply and drainage systems in large and medium-sized enterprises. During use, pipe joints generally require testing and measurement using a testing instrument, and fixtures are used in the testing process.

[0003] Currently, the pipe joint is usually moved into the fixture, clamped and limited by the fixture, and then the testing instrument is used to test and measure the pipe joint. Existing fixtures are usually clamped by two clamping plates that can be relatively close or far apart.

[0004] The inventors believe that the existing technology has the following drawbacks: there are only two contact surfaces between the clamping plate and the pipe joint, and the contact surfaces are small. It requires a large force to clamp the pipe joint, which can easily cause damage to the pipe joint and wear on the surface of the pipe joint, making the inspection of the pipe joint inconvenient. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model proposes a pipe joint inspection device. This pipe joint inspection device can reduce damage to pipe joints and wear on the surface of pipe joints, thereby improving the convenience of pipe joint inspection.

[0006] This application provides a pipe joint testing device, which adopts the following technical solution:

[0007] A pipe joint inspection device includes a fixed frame and an inspection instrument mounted on the fixed frame. The fixed frame is equipped with a clamping device, which includes multiple clamping plates for clamping the pipe joint and a driving mechanism for driving the multiple clamping plates to clamp the pipe joint. The clamping plates are arranged in two sets opposite to each other, and each set has at least two clamping plates. Each clamping plate includes an arc-shaped segment for clamping circular pipe joints and a straight segment disposed on the arc-shaped segment for clamping rectangular pipe joints.

[0008] By adopting the above technical solution and setting multiple sets of clamping plates, the pipe joint can be clamped at multiple locations, increasing the contact surface between the clamping plates and the pipe joint, which can reduce damage to the pipe joint and wear on the surface of the pipe joint, thereby improving the convenience of pipe joint inspection. At the same time, by setting arc segments and straight segments, circular pipe joints and rectangular pipe joints can be fixed, thereby realizing the inspection of pipe joints of different shapes and sizes.

[0009] Optionally, the drive mechanism is provided with a mounting base, and a rotating rod that is rotatably engaged with the mounting base passes through the clamping plate. The drive mechanism is provided with a locking device for squeezing and locking the rotating rod and unlocking it.

[0010] Optionally, the locking device includes a mounting bracket, a locking component disposed within the mounting bracket, and a pushing component for pushing the locking component, the locking component being used to press and lock the rotating rod and to unlock it.

[0011] Optionally, the locking assembly includes a ratchet fixedly mounted on the rotating rod and a pawl rotatably fitted within the mounting bracket and adapted to the ratchet.

[0012] Optionally, the pushing assembly includes an elastic plate and a push rod for pushing the pawl to rotate. One end of the elastic plate is mounted on the mounting bracket, and the other end abuts against the end of the pawl near the ratchet.

[0013] Optionally, the driving mechanism includes a slider for driving each set of clamping plates to slide, a bidirectional screw for driving multiple sliders to slide, and a driving assembly for driving the bidirectional screw to rotate, wherein the mounting bracket is connected to the slider.

[0014] Optionally, the fixing frame is provided with a sliding groove, and the slider is slidably engaged in the sliding groove.

[0015] Optionally, the drive assembly includes a bevel gear set for driving the bidirectional screw to rotate and a rotating rod for driving the bevel gear set to rotate.

[0016] In summary, this application includes at least one of the following beneficial technical effects:

[0017] 1. By setting multiple sets of clamping plates, the pipe joint can be clamped at multiple locations, increasing the contact surface between the clamping plates and the pipe joint, which can reduce damage to the pipe joint and wear on the surface of the pipe joint, thereby improving the convenience of pipe joint inspection. At the same time, by setting arc segments and straight segments, circular pipe joints and rectangular pipe joints can be fixed, thus realizing the inspection of pipe joints of different shapes and sizes. Attached Figure Description

[0018] Figure 1 This is a partial sectional view of this application;

[0019] Figure 2 yes Figure 1 A magnified view of a portion of point A in the middle.

[0020] Explanation of reference numerals in the attached drawings: 1. Fixing frame; 2. Detector; 3. Clamping device; 31. Clamping plate; 311. Arc segment; 312. Straight segment; 32. Drive mechanism; 321. Slider; 322. Bidirectional screw; 323. Drive assembly; 324. Bevel gear set; 325. Rotating rod; 4. Mounting base; 5. Rotating rod; 6. Locking device; 61. Mounting frame; 62. Locking assembly; 621. Ratchet; 622. Pad; 63. Push assembly; 631. Elastic plate; 632. Push rod. Detailed Implementation

[0021] The following is in conjunction with the appendix Figure 1-2 This application will be described in further detail.

[0022] This application discloses a pipe joint testing device. (Refer to...) Figure 1 and Figure 2 It includes a fixed frame 1 and a testing instrument 2 set on the fixed frame 1. The fixed frame 1 is equipped with a clamping device 3, which is used to fix and clamp the pipe joint. After clamping, the testing instrument 2 is used to test the pipe joint.

[0023] Among them, reference Figure 1 and Figure 2 The clamping device 3 includes multiple clamping plates 31 for clamping pipe joints and a driving mechanism 32 for driving the multiple clamping plates 31 to clamp the pipe joints. The clamping plates 31 are arranged in two sets opposite each other, and each set of clamping plates 31 has at least two clamping plates 31. In this application, each set of clamping plates 31 is set to two, and the two clamping plates 31 are arranged opposite each other in the vertical direction. The clamping plate 31 includes an arc-shaped segment 311 for clamping circular pipe joints and a straight segment 312 fixedly arranged on the arc-shaped segment 311 for clamping rectangular pipe joints.

[0024] Reference Figure 1 and Figure 2The drive mechanism 32 includes a slider 321 for sliding each set of clamping plates 31, a bidirectional screw 322 for sliding the two sliders 321, and a drive assembly 323 for rotating the bidirectional screw 322. The fixed frame 1 is provided with a slide groove, which is a T-shaped groove. The slider 321 is configured with a T-shaped structure and slides within the slide groove. The fixed frame 1 is provided with a plate that supports the rotation of the bidirectional screw 322.

[0025] Reference Figure 1 and Figure 2 The drive assembly 323 includes a bevel gear set 324 for driving the bidirectional screw 322 to rotate and a rotating rod 325 for driving the bevel gear set 324 to rotate. The bevel gear set 324 consists of two meshing bevel gears, which are arranged vertically. One bevel gear is fixedly connected to the bidirectional screw 322, and the other bevel gear is fixedly connected to the rotating rod 325.

[0026] Reference Figure 1 and Figure 2 The slider 321 is provided with a mounting base 4, and a rotating rod 5 is fixedly inserted in the clamping plate 31 and rotated in the mounting base 4. The two rotating rods 5 in the two clamping plates 31 arranged opposite each other in the vertical direction are coaxially arranged. The drive mechanism 32 is provided with a locking device 6 for squeezing and locking the rotating rod 5 and unlocking it.

[0027] Reference Figure 1 and Figure 2 The locking device 6 includes a mounting bracket 61 fixedly mounted on the slider 321, a locking component 62 disposed within the mounting bracket 61, and a pushing component 63 for pushing the locking component 62. The locking component 62 is used to press and lock the rotating rod 5 and to unlock it. The mounting bracket 61 includes a rectangular block fixedly mounted on the slider 321 and a cylindrical shell fixedly mounted on the rectangular block.

[0028] Reference Figure 1 and Figure 2 The locking assembly 62 includes a ratchet 621 fixedly mounted on the rotating rod 5 and a pawl 622 rotatably fitted within the mounting bracket 61 and adapted to the ratchet 621. A rotating shaft rotatably fitted within the mounting bracket 61 is provided at the middle position of the pawl 622.

[0029] Reference Figure 1 and Figure 2 The push assembly 63 includes an elastic sheet 631 and a push rod 632 for pushing the pawl 622 to rotate. The elastic sheet 631 is an "S"-shaped elastic metal sheet. One end of the elastic sheet 631 is fixedly installed on the mounting bracket 61, and the other end is pressed against the end of the pawl 622 near the ratchet 621. The push rod 632 is an "I"-shaped rod. The push rod 632 slides in the vertical direction and is fitted to the mounting bracket 61. One end of the push rod 632 abuts against the pawl 622.

[0030] The implementation principle of a pipe joint detection device in this application embodiment is as follows: When it is necessary to detect a pipe joint, when detecting a circular pipe joint, the pipe joint is first placed between the arc segments 311 of the four clamping plates 31, and then the rotating rod 325 is rotated to drive the bevel gear set 324 to rotate, which in turn drives the bidirectional screw 322 to rotate, which in turn drives the two sliders 321 to slide towards each other.

[0031] Simultaneously, the push rod 632 is pressed down, causing the push rod 632 to push the pawl 622, causing the pawl 622 to rotate. The end of the pawl 622 near the ratchet 621 rotates away from the ratchet 621 and squeezes the elastic plate 631, so that the pawl 622 no longer squeezes and locks the ratchet 621. The rotating rod 5 can rotate within the mounting base 4. Then, the two clamping plates 31 in the vertical direction are rotated, so that the two clamping plates 31 rotate in the direction of approaching or moving away from each other, fixing and clamping the pipe joint. After clamping, the push rod 632 is released. The elastic restoring force of the elastic plate 631 causes the pawl 622 to press against the ratchet 621, so that the ratchet 621 and the rotating rod 5 cannot rotate. After the clamping plates 31 have fixed and clamped the pipe joint, the testing instrument 2 is used to test the pipe joint.

[0032] When inspecting a rectangular pipe joint, first place the pipe joint between the straight sections 312 of the four clamping plates 31. Then rotate the rotating rod 325 to drive the bevel gear set 324 to rotate, which in turn drives the bidirectional screw 322 to rotate, causing the two sliders 321 to slide closer to each other and fix the pipe joint in place. Then use the testing instrument 2 to inspect the pipe joint.

[0033] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A pipe joint testing device, characterized in that: The device includes a fixed frame (1) and a detector (2) mounted on the fixed frame (1). The fixed frame (1) is provided with a clamping device (3). The clamping device (3) includes multiple clamping plates (31) for clamping pipe joints and a driving mechanism (32) for driving the multiple clamping plates (31) to clamp the pipe joints. The clamping plates (31) are arranged in two sets opposite to each other, and each set of clamping plates (31) has at least two clamping plates (31). The clamping plates (31) include an arc-shaped segment (311) for clamping circular pipe joints and a straight segment (312) mounted on the arc-shaped segment (311) for clamping rectangular pipe joints.

2. The pipe joint detection device according to claim 1, characterized in that: The drive mechanism (32) is provided with a mounting base (4), and a rotating rod (5) that is rotatably engaged in the mounting base (4) is provided inside the clamping plate (31). The drive mechanism (32) is provided with a locking device (6) for squeezing and locking the rotating rod (5) and unlocking it.

3. The pipe joint detection device according to claim 2, characterized in that: The locking device (6) includes a mounting bracket (61), a locking component (62) disposed in the mounting bracket (61), and a pushing component (63) for pushing the locking component (62). The locking component (62) is used to press and lock the rotating rod (5) and to unlock it.

4. The pipe joint detection device according to claim 3, characterized in that: The locking assembly (62) includes a ratchet (621) fixedly mounted on the rotating rod (5) and a pawl (622) rotatably fitted within the mounting bracket (61) and adapted to the ratchet (621).

5. A pipe joint detection device according to claim 4, characterized in that: The pushing assembly (63) includes an elastic plate (631) and a push rod (632) for pushing the pawl (622) to rotate. One end of the elastic plate (631) is mounted on the mounting bracket (61), and the other end is pressed against the end of the pawl (622) near the ratchet (621).

6. A pipe joint detection device according to claim 5, characterized in that: The drive mechanism (32) includes a slider (321) for driving each set of clamping plates (31) to slide, a bidirectional screw (322) for driving multiple sliders (321) to slide, and a drive assembly (323) for driving the bidirectional screw (322) to rotate. The mounting bracket (61) is connected to the slider (321).

7. A pipe joint testing device according to claim 6, characterized in that: The fixed frame (1) is provided with a sliding groove, and the slider (321) slides within the sliding groove.

8. A pipe joint detection device according to claim 7, characterized in that: The drive assembly (323) includes a bevel gear set (324) for driving the bidirectional screw (322) to rotate and a rotating rod (325) for driving the bevel gear set (324) to rotate.

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