Pipeline gas sampling device with detection head convenient to replace

Abstract

The utility model discloses a pipeline gas sampling device convenient to replace a detection head, and relates to the technical field of pipeline gas sampling detection, the pipeline gas sampling device comprises a collecting box, a connecting pipe and a gas suction box, one side of the collecting box is connected with the gas suction box through the connecting pipe, and one side of the gas suction box is provided with a ventilation groove; the side, provided with the ventilation groove, of the air suction box is connected with the top of the handle through an air suction pipe, and the bottom of the handle is connected with a collecting pipe. According to the pipeline gas sampling detection device with the detection head convenient to replace, the detection head body can be easily taken down by pushing a rotating block and rotating an external thread butt joint column, replacement is convenient, installation is convenient, meanwhile, a good anti-loosening effect is achieved, use is more stable, and practicability is high. By means of the pipeline gas sampling detection device with the detection head convenient to replace, the problem that in order to guarantee the stability of connection between the detection head and a pipeline, bolts are generally adopted for connection with the gas suction pipe, and disassembly and replacement are inconvenient is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to pipeline gas sampling detection technical field, concretely to a pipeline gas sampling device convenient to replace detection head. BACKGROUND

[0002] Pipeline gas detection is one of important means to ensure the safe and efficient operation of pipeline system, which involves the detection of parameters such as the composition, concentration, pressure and temperature of the gas in the pipeline, and the detection of whether there is leakage and other safety hazards in the pipeline. Pipeline gas sampling is an important step to ensure the quality of the gas in the pipeline, monitor the operation state of the pipeline and conduct subsequent analysis.

[0003] According to the pipeline gas sampling detection device with the announcement number CN216621894U, the collecting box and the air suction box body are communicated through the pipeline, the air suction pipe is arranged on one side of the outer wall of the air suction box body, a handle is arranged at the end of the air suction pipe away from the air suction box body, a collecting pipe is welded at the bottom end of the handle, and a collecting head is welded at the bottom end of the collecting pipe. When in use, the collecting pipe is used to lengthen the collection end, so as to collect the gas in the pipeline. However, in order to ensure the stability of the connection between the detection head and the pipeline, the pipeline gas sampling detector is generally connected with the air suction pipe through bolts, and the bolts need to be removed one by one when disassembling, which brings inconvenience to the replacement of the detection head. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a pipeline gas sampling device convenient to replace detection head to solve the problem of inconvenience in disassembly and replacement for ensuring the stability of the connection between the detection head and the pipeline, which is generally achieved by connecting the detection head with the air suction pipe through bolts.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a pipeline gas sampling device convenient to replace detection head, comprising a collecting box, a connecting pipe and an air suction box, one side of the collecting box is connected with the air suction box through the connecting pipe, one side of the air suction box is provided with a ventilation slot, one side of the air suction box provided with the ventilation slot is connected with the top of the handle through the air suction pipe, the bottom of the handle is connected with the collecting pipe, and the bottom of the collecting pipe is provided with a detection head body.

[0006] The bottom of the collecting pipe is connected with an internal thread connecting column, equidistant reservation grooves are arranged in the internal thread connecting column, and the top of the detection head body is connected with an external thread butt joint column.

[0007] Preferably, one side of the reservation groove is provided with a protrusion, the internal thread butt joint column is provided with a limiting block, and one side of the limiting block is inserted into the reservation groove on the adjacent side.

[0008] Preferably, the push block is inserted into the reserved slot away from one side of the protrusion, the outer side of the push block is connected with a rotating ring, and the outer side of the rotating ring is connected with a rotating block.

[0009] Preferably, one end of the limiting block abuts against the protrusion on the adjacent side, and a mounting rod is inserted into the limiting block at the middle part.

[0010] Preferably, an active slot is formed in the outer threaded butt joint column, and the two ends of the mounting rod are connected with the active slot.

[0011] Preferably, a mounting slot is formed in one side of the limiting block, the mounting slot and the active slot are both internally provided with a connecting block, and the two adjacent connecting blocks are hingedly connected with the two ends of the tension spring through a pin shaft.

[0012] Compared with the prior art, the pipeline gas sampling and detecting device with the detection head convenient to replace has the advantages that the detection head body can be easily taken down by pushing the rotating block and rotating the outer threaded butt joint column, is convenient to replace, is convenient to install, has good anti-loosening effect, is more stable to use, and solves the problem that the stability of the detection head and the pipeline connection is ensured by generally adopting a bolt and a suction pipe to connect, and the old detection head body can be easily taken down.

[0013] 1. The pipeline gas sampling and detecting device with the detection head convenient to replace is convenient to replace the detection head body, the rotating block is rotated, the limiting block is pushed by the push block until the limiting block is separated from the reserved slot, at this time, the outer threaded butt joint column is rotated, the old detection head body can be easily taken down through the threaded action of the outer threaded butt joint column and the inner threaded connecting column, the new detection head body is screwed to the side where the collecting pipe is located through the threaded action of the inner threaded connecting column, and the pipeline gas sampling and detecting device with the detection head convenient to replace can easily take down the detection head body by pushing the rotating block and rotating the outer threaded butt joint column.

[0014] 2. The pipeline gas sampling and detecting device with the detection head convenient to replace is convenient to stably butt joint the outer threaded butt joint column and the inner threaded connecting column, the limiting block is pushed when the outer threaded butt joint column is installed, all the limiting blocks are located in the active slot, the outer threaded butt joint column is threadedly butted with the inner threaded connecting column, the outer threaded butt joint column is rotated until the active slot is aligned with the reserved slot, at this time, the tension spring installed in the active slot through the connecting block pushes the limiting block, the limiting block is pushed to the reserved slot, abuts against the protrusion at the reserved slot, and the outer threaded butt joint column cannot be continuously rotated, the pipeline gas sampling and detecting device with the detection head convenient to replace is convenient to install, has good anti-loosening effect, and is more stable to use. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a front view structural schematic diagram of the pipeline gas sampling and detecting device of the utility model.

[0016] Figure 2 It is the external thread butt joint column overhead section structure schematic view of the utility model;

[0017] Figure 3 It is the rotating ring three-dimensional structure schematic view of the utility model;

[0018] Figure 4 It is the external thread butt joint column three-dimensional structure schematic view of the utility model.

[0019] In the drawing: 1, collecting box; 101, connecting pipe; 2, suction box; 201, ventilation groove; 202, suction pipe; 3, handle; 301, collecting pipe; 4, detection head body; 5, internal thread connecting column; 501, reserved groove; 502, protrusion; 503, push block; 504, rotating ring; 505, rotating block; 6, external thread butt joint column; 7, limiting block; 701, mounting rod; 702, mounting groove; 703, connecting block; 704, tension spring; 705, movable groove. DETAILED DESCRIPTION

[0020] 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, rather than 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.

[0021] Please refer to Figure 1 , Figure 2 and Figure 3 , the utility model provides a kind of technical scheme: a kind of pipe gas sampling device of detection head convenient to replace, including collecting box 1, connecting pipe 101 and suction box 2, the side of the collecting box 1 is connected with suction box 2 by connecting pipe 101, the side of the suction box 2 is equipped with ventilation groove 201, the side of the suction box 2 equipped with ventilation groove 201 is connected with handle 3 top by suction pipe 202, the bottom of handle 3 is connected with collecting pipe 301, and the bottom of collecting pipe 301 is provided with detection head body 4;

[0022] The bottom of collecting pipe 301 is connected with internal thread connecting column 5, equidistantly reserved groove 501 is equipped in the internal thread connecting column 5, the top of detection head body 4 is connected with external thread butt joint column 6, the side of the inside of reserved groove 501 is provided with protrusion 502, the inside of external thread butt joint column 6 is provided with limiting block 7, the side of limiting block 7 and the adjacent side reserved groove 501 are inserted, the side of the reserved groove 501 away from protrusion 502 is inserted with push block 503, the outside of push block 503 is connected with rotating ring 504, and the outside of rotating ring 504 is connected with rotating block 505.

[0023] In practice, to facilitate the replacement of the detection head body 4, along the reserved groove 501 inside the internal threaded connecting column 5, rotate the rotating block 505 on one side of the rotating ring 504, causing the pushing block 503 to move towards the side where the protrusion 502 is located. At this time, the pushing block 503 will push the limiting block 7 that is inserted into the reserved groove 501 until the limiting block 7 disengages from the reserved groove 501. Then, rotate the external threaded docking column 6. Through the thread action between the external threaded docking column 6 and the internal threaded connecting column 5, the old detection head body 4 can be easily removed. The new detection head body 4 can be screwed into the side where the collection tube 301 is located by the thread action between the internal threaded connecting column 5 and the new detection head body 4. This pipeline gas sampling and detection device that facilitates the replacement of detection heads can easily remove the detection head body 4 by pushing the rotating block 505 and rotating the external threaded docking column 6, making replacement convenient.

[0024] See Figure 2 and Figure 4 It can be seen that one end of the limiting block 7 abuts against the protrusion 502 on the adjacent side, and an installation rod 701 is inserted through the middle of the limiting block 7. The external threaded docking post 6 has a movable groove 705 inside. The two ends of the installation rod 701 are connected to the movable groove 705. An installation groove 702 is opened on one side of the limiting block 7. A connecting block 703 is installed inside both the installation groove 702 and the movable groove 705. Adjacent connecting blocks 703 are hinged to the two ends of the tension spring 704 through a pin.

[0025] In specific implementation, to facilitate stable connection between the external threaded mating post 6 and the internal threaded connecting post 5, when installing the external threaded mating post 6, push the limiting block 7 towards the side where the movable groove 705 is located until all the limiting blocks 7 are inside the movable groove 705. Then rotate the external threaded mating post 6 away from the tension spring 704, so that the external threaded mating post 6 and the internal threaded connecting post 5 are threadedly connected, until the external threaded mating post 6 is rotated until the movable groove 705 is aligned with the reserved groove 501. At this time, the inner side of the movable groove 705 is connected by a connecting... The tension spring 704 installed on the connecting block 703 will push the limiting block 7, pushing the limiting block 7 to the reserved groove 501, where it abuts against the protrusion 502 at the reserved groove 501, thus preventing the external thread connecting post 6 from continuing to rotate. The mounting rod 701 in the middle of the limiting block 7 is used for the rotational installation of the limiting block 7, and the mounting groove 702 can provide space for the movement of the tension spring 704. This pipeline gas sampling and detection device, which facilitates the replacement of the detection head, is easy to install and has a good anti-loosening effect, making it more stable in use.

[0026] In summary, when using this pipeline gas sampling and detection device with easy-to-change detection head, the user grasps the handle 3, sends the collection tube 301 and the detection head body 4 into the pipeline through the suction tube 202, and starts the control component inside the collection box 1 to control the suction pump inside the suction box 2 to send the gas in the pipeline through the detection head body 4, collection tube 301, suction tube 202, suction box 2 and connecting tube 101 into the collection box 1 for detection. The ventilation slot 201 on one side of the suction box 2 is used for heat dissipation of the suction pump. The contents not described in detail in this description are prior art known to those skilled in the art.

[0027] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A pipeline gas sampling device facilitating replacement of a detection head, comprising a collection tank (1), a connecting pipe (101) and a suction tank (2), characterized in that: One side of the collection box (1) is connected with the air suction box (2) through the connecting pipe (101), one side of the air suction box (2) is provided with the ventilation slot (201), the side of the air suction box (2) provided with the ventilation slot (201) is connected with the top of the handle (3) through the air suction pipe (202), the bottom of the handle (3) is connected with the collection pipe (301), and the bottom of the collection pipe (301) is provided with the detection head body (4). The bottom of the collection pipe (301) is connected with the internal thread connecting column (5), equidistantly provided with the reserved groove (501) in the internal thread connecting column (5), and the top of the detection head body (4) is connected with the external thread butt joint column (6).

2. The pipeline gas sampling device of claim 1, wherein: One side of the reserved groove (501) is provided with the protrusion (502), the internal thread butt joint column (6) is provided with the limiting block (7), and one side of the limiting block (7) is inserted with the adjacent reserved groove (501).

3. A pipeline gas sampling apparatus that facilitates replacement of a sensing head as recited in claim 2, wherein: The side, away from the protrusion (502), of the reserved groove (501) is inserted with the push block (503), the outer side of the push block (503) is connected with the rotating ring (504), and the outer side of the rotating ring (504) is connected with the rotating block (505).

4. The pipeline gas sampling device of claim 2, wherein: One end of the limiting block (7) abuts against the adjacent protrusion (502), and the installation rod (701) is inserted through the middle part of the limiting block (7).

5. A pipeline gas sampling apparatus for facilitating replacement of a sensing head as defined in claim 4, wherein: The internal thread butt joint column (6) is provided with the movable slot (705), and the two ends of the installation rod (701) are connected with the movable slot (705).

6. A pipeline gas sampling apparatus that facilitates replacement of a sensing head as recited in claim 5, wherein: One side of the limiting block (7) is provided with the mounting slot (702), the mounting slot (702) and the movable slot (705) are internally provided with the connecting block (703), and the adjacent connecting blocks (703) are hingedly connected with the two ends of the tension spring (704) through the pin shaft.

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