Novel tower-shaped corrugated sampling suction head

The design of the tower-shaped corrugated sampling nozzle solves the problems of inaccurate sampling and susceptibility to wind interference in existing sampling tubes, and realizes multi-angle adjustment and sealing, thereby improving the accuracy of leak point location and sampling effect.

CN224262889UActive Publication Date: 2026-05-19SHANGHAI HANJIE SCI INSTR CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANGHAI HANJIE SCI INSTR CO LTD
Filing Date
2025-07-17
Publication Date
2026-05-19

AI Technical Summary

Technical Problem

Existing sampling tubes have a small sampling area and high rigidity, making it difficult to locate leak points behind obstructions, and environmental wind forces interfere with sample analysis.

Method used

A tower-shaped corrugated sampling nozzle was designed, which uses a connecting tube, a telescopic tube, a splicing component and an air suction component. Through the combination of threaded connection, magnetic block and rubber pad, multi-angle adjustment and sealing are achieved, which improves positioning accuracy and wind resistance.

Benefits of technology

It enables accurate location and sealing of leak points, reduces interference from ambient gases, and improves the accuracy and convenience of sampling.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a novel tower-shaped corrugated sampling sucker, which relates to the technical field of sampling suckers and comprises a connecting pipe, a telescopic pipe is mounted at the bottom of the connecting pipe, and a connecting ring is mounted at the bottom of the telescopic pipe. The interior of the connecting pipe is in threaded connection with a mounting assembly; a splicing assembly is connected to the interior of the connecting ring in an embedded mode, the splicing assembly comprises an insertion pipe, a sealing layer is installed on the outer side of the insertion pipe, and clamping plates are installed on the top of the periphery of the insertion pipe; and an air suction assembly is mounted at the bottom of the insertion pipe. According to the utility model, through the use of the air suction assembly, the tower-shaped corrugated style of the suction head and the cooperation of the rubber pad, the suction head can effectively cover a gas leakage port, the interference of ambient air on sampling is reduced, and the suction head can be conveniently adsorbed and fixed in a specified area through the magnetic suction block in the bottom part of the rubber pad; and meanwhile, the attaching degree and the sealing effect are improved through adsorption of the magnetic attraction blocks.
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Description

Technical Field

[0001] This utility model relates to the field of sampling pipette technology, specifically a novel tower-shaped corrugated sampling pipette. Background Technology

[0002] A methane leak detector is a battery-powered, absolutely safe, portable testing instrument used to test gas leak rates under various operating conditions, such as those found in oilfield packing, tank breather valves, valves, flanges, connectors, and open pipelines. It is widely used in petrochemical plants, natural gas transmission and storage, and city gas industries. The methane detector can collect leaked gas and ambient air at a high flow rate from the leaking component to test the leak rate. By accurately measuring the sampling flow rate and the concentration of the leaked gas, the leakage amount is calculated. Currently, most methane leak detectors use a sampling tube to draw gas samples from the leak point into the main unit.

[0003] However, existing sampling tubes have a small sampling area during the collection process, and their material hardness makes them unsuitable for on-site operation. When the leak point is behind an obstruction, it is not easy to accurately locate the leak point. In addition, existing pipette tips are affected by the direction and force of the ambient wind when collecting samples from the leak, which can interfere with the analysis of the samples.

[0004] Based on this, a novel tower-shaped corrugated sampling nozzle is now provided, which can eliminate the drawbacks of existing devices. Utility Model Content

[0005] The purpose of this invention is to provide a novel tower-shaped corrugated sampling nozzle to solve the problem of poor sampling effect of the sampling tube in the prior art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A novel tower-shaped corrugated sampling nozzle includes a connecting tube, a telescopic tube installed at the bottom of the connecting tube, and a connecting ring installed at the bottom of the telescopic tube.

[0008] The connecting pipe is internally threaded with an installation assembly;

[0009] The connecting ring is internally fitted with a splicing assembly, which includes an insertion tube. A sealing layer is installed on the outside of the insertion tube, and a retaining plate is installed on the top of the insertion tube around its perimeter.

[0010] An air intake assembly is installed at the bottom of the insertion tube.

[0011] Based on the above technical solutions, this utility model also provides the following optional technical solutions:

[0012] In one alternative: the connecting ring has a connecting groove inside and a retaining groove around its perimeter.

[0013] In one alternative: the mounting assembly includes a threaded ring threadedly connected to the inside of the connecting pipe, and a sealing ring is mounted on the top outer side of the threaded ring.

[0014] In one alternative: the sealing ring is annular and made of silicone rubber.

[0015] In one alternative: a pipe assembly is mounted on top of the threaded ring.

[0016] In one alternative: the pipe assembly includes a bend mounted on top of a threaded ring, a pipe body is mounted on the right side of the bend, and a connector is mounted on the right side of the pipe body.

[0017] In one alternative embodiment: the suction assembly includes a suction head body, which is mounted at the bottom of the insertion tube, and a rubber pad is installed at the bottom of the suction head body, with a magnetic block installed inside the bottom of the rubber pad.

[0018] In one alternative: the suction head body is in the shape of a tower-shaped corrugated tube and is made of rubber.

[0019] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0020] 1. This utility model facilitates the connection of telescopic tubes and curved tubes through the threaded connection of the connecting tube and the threaded ring. The telescopic tube facilitates the adjustment of the angle and position of the suction head. The interlocking connection between the splicing components and the internal connection of the connecting ring facilitates the quick installation and disassembly of the suction head, thus improving the convenience and practicality of the device.

[0021] 2. This utility model, through the use of the suction component, the tower-shaped corrugated pattern of the suction head, and the cooperation of the rubber pad, can effectively cover the gas leakage port, reducing the interference of ambient air on sampling. The magnetic block inside the bottom of the rubber pad makes it easy to adsorb and fix the suction head in the designated area, and the magnetic block also improves the fit and sealing effect. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0023] Figure 2 This is a schematic diagram of the connecting pipe of this utility model.

[0024] Figure 3 This is a schematic diagram of the installation components and piping components of this utility model.

[0025] Figure 4 This is a schematic diagram of the splicing component and the air intake component of this utility model.

[0026] Figure reference numerals: 1. Connecting pipe; 11. Telescopic pipe; 12. Connecting ring; 13. Connecting groove; 14. Slot; 2. Threaded ring; 21. Sealing ring; 22. Bend; 23. Pipe body; 24. Joint; 3. Insertion pipe; 31. Sealing layer; 32. Clamping plate; 33. Suction head body; 34. Rubber pad; 35. Magnetic block. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.

[0028] In one embodiment, such as Figures 1-4 As shown, a novel tower-shaped corrugated sampling nozzle includes a connecting tube 1, a telescopic tube 11 installed at the bottom of the connecting tube 1, and a connecting ring 12 installed at the bottom of the telescopic tube 11.

[0029] The internal thread of the connecting pipe 1 is connected to an installation assembly;

[0030] The connecting ring 12 is internally fitted with a splicing component, which includes an insertion tube 3. A sealing layer 31 is installed on the outside of the insertion tube 3, and a retaining plate 32 is installed on the top of the insertion tube 3.

[0031] An air suction component is installed at the bottom of the insertion tube 3.

[0032] In this embodiment, the telescopic tube 11 is supported by the connecting tube 1. The flexible telescopic shape of the telescopic tube 11 facilitates the adjustment of the position and angle of the suction head body 33. The telescopic tube 11 and the bent tube 22 are connected by the threaded connection between the mounting component and the connecting tube 1. The sealing effect is achieved by the sealing layer 31 on the outside of the inserted tube 3.

[0033] In one embodiment, such as Figure 1 and Figure 2 As shown, the connecting ring 12 has a connecting groove 13 inside and a slot 14 around its perimeter. The insertion tube 3 is inserted into the connecting groove 13 and rotated so that the card plate 32 enters the slot 14, thereby connecting the suction head body 33 and the telescopic tube 11.

[0034] In one embodiment, such as Figure 1 , Figure 2 and Figure 3As shown, the installation assembly includes a threaded ring 2, which is threadedly connected to the inside of the connecting pipe 1. A sealing ring 21 is installed on the top outer side of the threaded ring 2. The telescopic pipe 11 is installed through the threaded connection between the threaded ring 2 and the connecting pipe 1.

[0035] In one embodiment, such as Figure 1 and Figure 3 As shown, the sealing ring 21 is annular and made of silicone rubber. The sealing ring 21 achieves a sealing effect and avoids the problem of gas leakage.

[0036] In one embodiment, such as Figure 1 and Figure 3 As shown, a pipe assembly is mounted on the top of the threaded ring 2.

[0037] In one embodiment, such as Figure 1 and Figure 3 As shown, the pipe assembly includes a bend 22, which is mounted on top of the threaded ring 2. A pipe body 23 is mounted on the right side of the bend 22, and a connector 24 is mounted on the right side of the pipe body 23. The device is connected to the methane leak detector through the connector 24.

[0038] In one embodiment, such as Figure 1 and Figure 4 As shown, the suction assembly includes a suction head body 33, which is installed at the bottom of the insertion tube 3. A rubber pad 34 is installed at the bottom of the suction head body 33, and a magnetic block 35 is installed inside the bottom of the rubber pad 34. Through the cooperation of the rubber pad 34 and the magnetic block 35 at the bottom of the suction head body 33, the fit between the suction head body 33 and the leakage point is improved.

[0039] In one embodiment, such as Figure 1 and Figure 4 As shown, the suction head body 33 is in the shape of a tower-shaped corrugated tube and is made of rubber. The material and shape of the suction head body 33 can improve the accuracy of locating the leak point on site. Its structure seals the leak point inside the collection port to reduce the interference of ambient gas on the leaked sample.

[0040] The above embodiment discloses a novel tower-shaped corrugated sampling nozzle, wherein the pipe body 23 and the bend 22 are connected through the connection of the connector 24 and the methane leak detector; the threaded connection of the connecting pipe 1 and the threaded ring 2 facilitates the quick connection of the telescopic pipe 11 and the bend 22; the sealing ring 21 seals the connection between the connecting pipe 1 and the threaded ring 2, improving the sealing effect of the device; the flexible telescopic shape of the telescopic pipe 11 allows the nozzle body 33 to be adjusted in multiple angles and directions, improving the practicality of the device; the insertion tube 3 is inserted into the connecting groove 13 inside the connecting ring 12, and the sealing layer 31 on the outside of the insertion tube 3 fits against the inside of the connecting groove 13, thereby improving the sealing effect; by rotating the insertion tube 3, the insertion... The retaining plates 32 around the tube 3 enter the retaining groove 14, thereby fitting and connecting the insertion tube 3 and the connecting ring 12 to facilitate the installation of the suction head body 33. This also facilitates quick disassembly or installation of the suction head body 33, improving the convenience of the device. The material and shape of the suction head body 33 improve the accuracy of locating the leak point on site. Its structure seals the leak point within the collection port, reducing interference from ambient gases on the leaked sample. The flexible structure of the rubber pad 34 at the bottom of the suction head body 33 improves the fit between the suction head body 33 and the leak point, avoiding interference from ambient wind on the sampling effect. The magnetic block 35 at the bottom of the rubber pad 34 adheres to the leak point, further improving the fit of the suction head body 33 and enhancing the practicality and convenience of the device.

[0041] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A novel tower-shaped corrugated sampling nozzle, comprising a connecting tube (1), characterized in that, A telescopic tube (11) is installed at the bottom of the connecting tube (1), and a connecting ring (12) is installed at the bottom of the telescopic tube (11); The connecting pipe (1) is internally threaded with an installation assembly; The connecting ring (12) is internally fitted with a splicing component, which includes an insertion tube (3), a sealing layer (31) is installed on the outside of the insertion tube (3), and a clamping plate (32) is installed on the top of the insertion tube (3). An air intake assembly is installed at the bottom of the insertion tube (3).

2. The novel tower-shaped corrugated sampling nozzle according to claim 1, characterized in that, The connecting ring (12) has a connecting groove (13) inside and a retaining groove (14) around its perimeter.

3. A novel tower-shaped corrugated sampling nozzle according to claim 2, characterized in that, The mounting assembly includes a threaded ring (2) which is threaded into the inside of the connecting pipe (1), and a sealing ring (21) is installed on the top of the outer side of the threaded ring (2).

4. A novel tower-shaped corrugated sampling nozzle according to claim 3, characterized in that, The sealing ring (21) is annular and made of silicone rubber.

5. A novel tower-shaped corrugated sampling nozzle according to claim 3, characterized in that, A pipe assembly is mounted on the top of the threaded ring (2).

6. A novel tower-shaped corrugated sampling nozzle according to claim 5, characterized in that, The pipe assembly includes a bend (22) mounted on top of a threaded ring (2), a pipe body (23) mounted on the right side of the bend (22), and a connector (24) mounted on the right side of the pipe body (23).

7. A novel tower-shaped corrugated sampling nozzle according to claim 1, characterized in that, The suction assembly includes a suction head body (33), which is installed at the bottom of the insertion tube (3). A rubber pad (34) is installed at the bottom of the suction head body (33), and a magnetic block (35) is installed inside the bottom of the rubber pad (34).

8. A novel tower-shaped corrugated sampling nozzle according to claim 7, characterized in that, The suction head body (33) is in the shape of a tower-shaped corrugated tube and is made of rubber.