Sampling gun adapter

Abstract

The utility model relates to a sampling gun adapter, and relates to the technical field of sampling guns, the sampling gun adapter comprises a sampling tube, a connecting part and a sampling part are formed on the sampling tube, and a sampling port is formed in one side, close to the sampling part, of the sampling tube; the sealing assembly is mounted on the side, close to the sampling part, of the sampling pipe, and the sealing assembly is used for sealing the sampling opening; the connecting assembly is mounted on the side, close to the connecting part, of the sampling pipe, and the connecting assembly is used for connecting different sampling guns with the sampling pipe. According to the sampling gun, through sealing of the sealing assembly, gaseous pollutants are prevented from being discharged out of the pipeline through the detection opening in the replacement process of the sampling gun, and the influence on the body health of detection personnel is reduced.

Description

Technical Field

[0001] The present application relates to the technical field of sampling guns, and in particular to a sampling gun adapter. Background Art

[0002] Fixed exhaust gas pollution sources include boiler exhaust pipes or other pipes that continuously or intermittently discharge exhaust gas at fixed locations. In order to ensure that the exhaust gas emitted by fixed exhaust gas pollution sources meets environmental protection requirements, fixed exhaust gas pollution needs to be regularly tested.

[0003] There are solid and gaseous pollutants in the exhaust duct, and staff need to use different sampling guns to collect solid and gaseous pollutants in the duct.

[0004] The existing Chinese patent with publication number CN113237707A discloses a new type of flue gas sampling gun, which relates to the field of flue gas collection technology and aims to solve the technical problem of inconvenient adjustment of the length of the sampling gun barrel. The key points of its technical solution are: a first sliding groove is provided at the upper end of the gas device, and the first sliding groove is open at one end of the sampling gun barrel; a control block is provided at the end of the first sliding groove away from the sampling gun barrel, and the control block includes a hollow upper half and a lower half, and the lower half is slidingly connected to the first sliding groove. Control holes are opened at both ends of the upper half, and a control block is provided on the inner wall of the upper half. Control rods are provided at both ends of the upper half, which pass through the control hole from the outside and are inserted into the inside. One end of the control rod is fixed to the control plate by a control spring.

[0005] After the gaseous pollutants in the pipeline are collected using the above-mentioned sampling gun, it is necessary to replace the solid pollutant sampling gun and use the solid pollutant sampling gun to collect the solid pollutants in the pipeline.

[0006] With respect to the above-mentioned related technologies, the inventors believe that during the replacement of the sampling gun, some gaseous pollutants will be discharged from the pipeline through the detection port, thereby affecting the health of the detection personnel. Utility Model Content

[0007] The technical problem to be solved by the present invention is to provide a sampling gun adapter, which solves the technical problem that part of the gaseous pollutants will be discharged from the pipeline through the detection port during the replacement of the sampling gun.

[0008] To achieve the above objectives, the present invention provides the following technical solutions:

[0009] A sampling gun adapter comprises: a sampling tube, wherein a connecting portion and a sampling portion are formed on the sampling tube, and a sampling port is formed on a side of the sampling tube close to the sampling portion; a sealing assembly, wherein the sealing assembly is mounted on a side of the sampling tube close to the sampling portion, and the sealing assembly seals the sampling port; and a connecting assembly, wherein the connecting assembly is mounted on a side of the sampling tube close to the connecting portion, and the connecting assembly is used to connect different sampling guns to the sampling tube.

[0010] Through the above technical solution, the connection portion of the sampling tube is inserted into the pipeline, and the sampling gun collects pollutants in the pipeline through the sampling tube opening. The sampling gun is connected to the sampling tube through the connecting assembly. After sampling is completed, the sampling gun is separated from the sampling tube, and the sealing assembly seals the sampling opening. When another sampling gun is replaced and installed on the sampling tube, the sealing assembly reopens the sampling opening. The sealing of the sealing assembly reduces the risk of gaseous pollutants being discharged from the pipeline through the detection port during the sampling gun replacement process, reducing the impact on the health of the inspector.

[0011] Furthermore, a sealed cavity is formed on one side of the sampling tube close to the sampling portion, a connecting cavity is formed on one side of the sampling tube close to the connecting portion, the sampling port is communicated with the sealed cavity, and the sealed cavity is communicated with the connecting cavity.

[0012] Through the above technical solution, the sampling port is connected to the sealed cavity, and the connecting cavity is connected to the sealed cavity, thereby improving the convenience of sampling with the sampling gun.

[0013] Furthermore, the sampling tube is located between the sealing cavity and the connecting cavity to form a support inclined surface, and the sealing assembly includes a sealing ball and a support spring, and the support spring presses the sealing ball against the support inclined surface.

[0014] Through the above technical solution, the support spring presses the sealing ball against the support inclined surface of the sampling tube, thereby improving the sealing performance between the sealing cavity and the connecting cavity.

[0015] Furthermore, a sealing ring is provided on the sealing ball, and the sealing ring slides in the sealing cavity along with the sealing ball, and the sealing ring seals the gap between the sampling port and the sealing cavity.

[0016] Through the above technical solution, the sealing ring seals the sampling port, thereby reducing the risk of pollutants in the pipeline entering the sampling tube when closed.

[0017] Furthermore, a positioning ball is formed on one side of the sampling tube close to the connecting portion, and the positioning ball penetrates into the connecting cavity.

[0018] Through the above technical solution, the sampling gun is positioned and connected, thereby preventing the sampling gun from being separated from the sampling tube during the sampling process.

[0019] Furthermore, a mounting hole is provided on the sampling tube, the positioning ball is embedded in the mounting hole, a sliding sleeve is slidably installed on the sampling tube, a positioning block is installed in the sliding sleeve, the positioning block supports the positioning ball, and a positioning spring is provided between the positioning block and the sampling gun, and the positioning spring is pressed tightly between the positioning block and the sampling gun.

[0020] Through the above technical solution, the sliding sleeve drives the positioning block to slide on the sampling tube. When the positioning block is separated from the positioning ball, the positioning ball slides to the side away from the connecting cavity. After the sampling gun is installed in the sampling tube, the positioning spring slides the positioning block to the side of the positioning ball. The positioning block supports the positioning ball, so that the positioning ball clamps the sampling gun.

[0021] Furthermore, a sealing gasket is provided on one side of the sampling tube close to the connecting portion, and the sealing gasket is located between the sealing cavity and the connecting cavity.

[0022] Through the above technical solution, the sealing gasket is pressed tightly between the sampling tube and the sampling gun, so that when the sampling gun is sampling, the pollutants are discharged from the gap between the sampling tube and the sampling gun.

[0023] In summary, this application includes at least one of the following beneficial technical effects of the sampling gun adapter:

[0024] 1. The connection part of the sampling tube is inserted into the pipeline, and the sampling gun collects pollutants in the pipeline through the sampling tube opening. The sampling gun is connected to the sampling tube through the connecting assembly. After sampling is completed, the sampling gun is separated from the sampling tube, and the sealing assembly seals the sampling opening. When another sampling gun is replaced and the sampling gun is installed on the sampling tube, the sealing assembly reopens the sampling opening. The sealing of the sealing assembly reduces the risk of gaseous pollutants being discharged from the pipeline through the detection port during the replacement of the sampling gun, reducing the impact on the health of the inspector.

[0025] 2. The sealing ball is pressed against the supporting slope of the sampling tube by the support spring, and the sealing ring is set to improve the sealing effect of the sampling tube;

[0026] 3. The positioning ball and the positioning block on the sliding sleeve improve the stability of the connection between the sampling gun and the sampling tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a schematic diagram of the overall structure of a sampling gun adapter provided in this embodiment;

[0028] Figure 2 This is a cross-sectional view of the sampling tube structure provided by this embodiment;

[0029] Figure 3 yes Figure 2 Schematic diagram of the enlargement of local part A.

[0030] Figure numerals: 1. Sampling tube; 11. Sampling port; 12. Connecting part; 121. Connecting cavity; 13. Sampling part; 131. Sealing cavity; 14. Support slope; 15. Mounting hole; 16. Sealing gasket; 2. Sealing assembly; 21. Sealing ball; 22. Support spring; 23. Sealing ring; 24. Push block; 3. Connecting assembly; 31. Positioning ball; 32. Sliding sleeve; 33. Positioning block; 34. Positioning spring. DETAILED DESCRIPTION

[0031] In order to make the technical means, creative features, objectives and effects of the present invention easier to understand, the present invention is further described below in conjunction with specific embodiments.

[0032] The following is combined with Figure 1-3 This application is described in further detail.

[0033] The embodiment of the present application discloses a sampling gun adapter.

[0034] Reference Figure 1-Figure 2 A sampling gun adapter includes a sampling tube 1 having a sampling port 11 formed thereon. The sampling gun samples pollutants within the pipe through the sampling port 11. The sampling tube 1 is provided with a sealing assembly 2 and a connecting assembly 3. The sealing assembly 2 seals the sampling port 11, and the connecting assembly 3 connects the sampling gun to the sampling tube 1.

[0035] A connecting portion 12 and a sampling portion 13 are formed on the sampling tube 1 . The sealing assembly 2 is located on a side of the sampling tube 1 close to the sampling portion 13 . The connecting assembly 3 is located on a side of the sampling tube 1 close to the connecting portion 12 .

[0036] When in use, the side of the sampling tube 1 close to the sampling portion 13 is inserted into the pipeline, and the connecting portion 12 of the sampling tube 1 is located outside the pipeline.

[0037] A sealed cavity 131 is formed on the side of the sampling tube 1 near the sampling portion 13, and the sealed cavity 131 is connected to the sampling port 11. A connecting cavity 121 is formed on the side of the sampling tube 1 near the connecting portion 12, and the connecting cavity 121 is connected to the sealed cavity 131. During use, the sampling gun samples the pipeline through the sampling port 11 and the sealed cavity 131.

[0038] In addition, the angle between the sampling port 11 and the sampling tube 1 is 60 degrees. On the one hand, this allows gaseous pollutants in the pipeline to enter the sampling tube 1. On the other hand, it improves the convenience of the sampling gun in collecting solid pollutants.

[0039] The sampling tube 1 is formed with a support slope 14 on one side of the sealing chamber 131, with the support slope 14 tilted toward the sealing chamber 131. The sealing assembly 2 includes a sealing ball 21 and a support spring 22. The sealing ball 21 slides along the axis of the sampling tube 1 within the sealing chamber 131. The support spring 22 is located on the side of the sealing ball 21 facing away from the connecting chamber 121, and the support spring 22 presses the sealing ball 21 against the support slope 14. The sealing of the sealing ball 21 improves the sealing performance between the sealing chamber 131 and the connecting chamber 121.

[0040] In addition, a sealing ring 23 is provided on the sealing ball 21 . When the sealing ball 21 is pressed against the supporting slope 14 of the sampling tube 1 , the sealing ring 23 blocks the sampling port 11 , thereby reducing gaseous pollutants from entering the sampling tube 1 through the sampling port 11 .

[0041] A push block 24 is provided on the side of the sealing ball 21 closest to the connection cavity 121. When the sampling gun is mounted on the sampling tube 1, the sampling gun uses the push block 24 on the sealing ball 21 to push the sealing ball 21 away from the connection cavity 121, separating the sealing ball 21 from the support slope 14. At this time, the support spring 22 is compressed. When the sampling gun is removed from the sampling tube 1, the sealing ball 21 is re-pressed against the support slope 14 by the support spring 22.

[0042] To enhance the stability of the connection between the sampling gun and the sampling tube 1, a mounting hole 15 is provided on the side of the sampling tube 1 near the connecting cavity 121. Several mounting holes 15 are evenly spaced around the sampling tube 1. Positioning balls 31 are embedded in each of the mounting holes 15 of the sampling tube 1. To prevent the positioning balls 31 from falling into the connecting cavity 121 of the sampling tube 1, the mounting holes 15 are reduced in diameter on the side near the connecting cavity 121.

[0043] Reference Figure 3 Furthermore, a sliding sleeve 32 is provided on the sampling tube 1, and the sliding sleeve 32 slides along the axis of the sampling tube 1. A positioning block 33 is provided between the sliding sleeve 32 and the sampling tube 1. When the positioning block 33 is located between the sliding sleeve 32 and the positioning ball 31, the positioning block 33 supports the positioning ball 31, thereby preventing the positioning ball 31 from falling out of the mounting hole 15. In addition, a positioning spring 34 is provided between the positioning block 33 and the sampling tube 1, and the positioning spring 34 is pressed tightly between the sampling tube 1 and the positioning block 33. When the sampling gun needs to be installed on the sampling tube 1, the sliding sleeve 32 drives the positioning block 33 to slide toward the side close to the sampling portion 13. At this time, the positioning block 33 is separated from the positioning ball 31, and at the same time, the positioning spring 34 is in a compressed state. After the sampling gun is inserted into the connecting cavity 121, the sliding sleeve 32 is released, and the positioning block 33 is pressed tightly between the positioning ball 31 and the sliding sleeve 32 under the action of the positioning spring 34, thereby enabling the positioning ball 31 to clamp the sampling gun.

[0044] The sampling tube 1 is located in the connecting cavity 121 and is provided with a sealing gasket 16 . The sealing gasket 16 is pressed tightly between the sampling tube 1 and the sampling gun, thereby reducing the outflow of gaseous pollutants from the gap between the sampling tube 1 and the sampling cavity during the sampling process of the sampling gun.

[0045] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A sampling gun adapter, characterized in that: include: A sampling tube (1), wherein a connecting portion (12) and a sampling portion (13) are formed on the sampling tube (1), and a sampling port (11) is formed on a side of the sampling tube (1) close to the sampling portion (13); A sealing component (2), the sealing component (2) being installed on a side of the sampling tube (1) close to the sampling portion (13), the sealing component (2) sealing the sampling port (11); A connecting assembly (3) is installed on a side of the sampling tube (1) close to the connecting portion (12), and the connecting assembly (3) is used to connect different sampling guns to the sampling tube (1).

2. The sampling gun adapter according to claim 1, characterized in that: A sealed cavity (131) is formed on one side of the sampling tube (1) close to the sampling portion (13), a connecting cavity (121) is formed on one side of the sampling tube (1) close to the connecting portion (12), the sampling port (11) is in communication with the sealed cavity (131), and the sealed cavity (131) is in communication with the connecting cavity (121).

3. The sampling gun adapter according to claim 2, characterized in that: The sampling tube (1) is located between the sealing cavity (131) and the connecting cavity (121) to form a support inclined surface (14); the sealing assembly (2) comprises a sealing ball (21) and a support spring (22); the support spring (22) presses the sealing ball (21) against the support inclined surface (14).

4. The sampling gun adapter according to claim 3, characterized in that: A sealing ring (23) is provided on the sealing ball (21), and the sealing ring (23) slides in the sealing cavity (131) along with the sealing ball (21), and the sealing ring (23) seals the gap between the sampling port (11) and the sealing cavity (131).

5. The sampling gun adapter according to claim 2, characterized in that: A positioning ball (31) is formed on one side of the sampling tube (1) close to the connecting portion (12), and the positioning ball (31) penetrates into the connecting cavity (121).

6. The sampling gun adapter according to claim 5, characterized in that: The sampling tube (1) is provided with a mounting hole (15), the positioning ball (31) is embedded in the mounting hole (15), a sliding sleeve (32) is slidably installed on the sampling tube (1), a positioning block (33) is installed in the sliding sleeve (32), the positioning block (33) supports the positioning ball (31), and a positioning spring (34) is provided between the positioning block (33) and the sampling gun, and the positioning spring (34) is pressed tightly between the positioning block (33) and the sampling gun.

7. The sampling gun adapter according to claim 2, characterized in that: A sealing gasket (16) is provided on one side of the sampling tube (1) close to the connecting portion (12), and the sealing gasket (16) is located between the sealing cavity (131) and the connecting cavity (121).

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