Novel helium detection plug tool for gas-liquid separator
By adopting a POM material plug and O-ring design, combined with a vent screw and a sealing screw, the scratch and leakage problems of the helium test plug tooling for gas-liquid separators are solved, achieving the effect of simplifying the testing process and reducing the generation of aluminum shavings.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-27
- Publication Date
- 2026-04-10
AI Technical Summary
Existing gas-liquid separator helium test plug tooling is prone to scratching the sealing surface, and leakage is likely to occur during the helium test process. Furthermore, the testing process of the brazed assembly requires setting up multiple air inlets, making the air filling process cumbersome.
Using POM material for the plug and O-ring, combined with the design of vent screw and sealing screw, gas can flow inside the tooling and product, avoiding scratches on the surface of parts and reducing the generation of aluminum shavings, while also reducing the number of air inlets.
It effectively avoids scratching parts surfaces during tooling assembly, reduces aluminum shavings, lowers the risk of leakage, simplifies the testing process, and reduces the waste of testing gas.
Smart Images

Figure CN224108997U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of automobile manufacturing, in particular to a novel gas -liquid separator helium detects plug tool. BACKGROUND
[0002] In the automobile thermal management system, brazing assembly helium detection is one of necessary test items and one of factory detection items, and the conventional helium detection gas -liquid separator plug tool needs to set multiple air inlet holes on the brazing assembly during the helium detection process.
[0003] The existing gas -liquid separator helium detection plug tool, for example, the helium detection leak plug tool in the utility model patent with the application number 202320441688.1, its main structure includes the cap, the outside of the cap is provided with four hexagonal holes, the inside of the cap provided with four hexagonal holes is provided with a fixed assembly, the inside of the cap is movably penetrated with a connecting rod, one end of the connecting rod is fixedly connected with a plug body, the middle of one side of the connecting rod is fixedly penetrated with a gas guide pipe with a one-way valve, one end of the gas guide pipe is fixedly penetrated with the plug body;The side of the cap is welded with a back-shaped frame;When using, the second hexagonal head bolt is rotated close to the cap, the second hexagonal head bolt exerts a pushing force on the connecting block during the rotation close to the cap, so that the connecting block drives the connecting rod to move, the connecting rod drives the plug body to move, so that the plug body can abut against the pipe opening of the pipeline to be detected, and then the pipe opening of the pipeline to be detected is completely plugged.
[0004] However, the existing gas -liquid separator plug tool adopts a metal interface, which is easy to scratch the sealing surface, and leakage is easy to occur during the helium detection process, and the internal channels are not interconnected, and multiple air inlets need to be set during the brazing assembly detection process, and the inflation process is complicated. UTILITY MODEL CONTENTS
[0005] To solve the above technical problems, the utility model provides a novel gas -liquid separator helium detection plug tool, which not only effectively avoids the scratch of the surface of the assembled parts and reduces the generation of aluminum chips, but also effectively reduces the multi-port air inlet operation steps and leakage risk of the brazing assembly airtightness detection process, reduces the operation process, and reduces the waste of detection gas caused by repeated detection of products.
[0006] The utility model discloses a novel gas -liquid separator helium detects plug tool, including connecting mechanism, still including three groups of partial plugging mechanism, three groups of aeration screw and sealing screw, three groups of partial plugging mechanism install on connecting mechanism and make things convenient for gas flow between connecting mechanism and product, three groups of aeration screw are installed on three groups of partial plugging mechanism respectively and will partial plugging mechanism with connecting mechanism fixed connection, and sealing screw installs on connecting mechanism and carries out sealing to processing hole, three groups of partial plugging mechanism with connecting mechanism fixed connection are used to three groups of aeration screw, and three groups of aeration screw are inserted into product, and the circulation of detection gas in connecting mechanism and product inside is reserved processing hole on connecting mechanism and adopts sealing screw to seal.
[0007] Preferably, the connecting mechanism includes a base, two sets of fixing plates and a flow channel, the base is internally provided with the flow channel, the two sets of fixing plates are both mounted on the base, fixing holes are formed in the two sets of fixing plates, and a processing hole is formed in the base and communicates with the flow channel; a fixing bolt is passed through positioning holes of the two sets of fixing plates to ensure that the base and the partial plug are effectively fixed on the brazing assembly during testing, and a sealing screw is used to seal the processing hole reserved in the base to promote the circulation of detection gas in the tool and the product through the flow channel.
[0008] Preferably, the partial plugging mechanism includes a partial plug and three groups of O-rings, the partial plug is mounted in the flow channel, and the three groups of O-rings are all mounted on the partial plug; the three groups of O-rings are sleeved on the partial plug, then the partial plug is inserted into the flow channel, and an aeration screw is used to fix the partial plug in the flow channel to facilitate the connection of the flow channel and the product.
[0009] Preferably, the partial plug is made of POM material; the POM material can effectively avoid scratching the surface of parts during tool assembly and reduce the generation of aluminum chips, and does not react with helium and air.
[0010] Compared with the prior art, the utility model has the beneficial effects that three groups of partial plugging mechanisms are fixedly connected with the connecting mechanism through three groups of aeration screws, the three groups of aeration screws are inserted into the product, the circulation of detection gas in the connecting mechanism and the product is realized, and the processing hole reserved on the connecting mechanism is sealed by a sealing screw. BRIEF DESCRIPTION OF DRAWINGS
[0011] Fig. 1 is the front view structural schematic diagram of the utility model;
[0012] Fig. 2 is the cross section axonometric structural schematic diagram of the connecting mechanism of the utility model;
[0013] Fig. 3 is the local enlarged cross section axonometric structural schematic diagram of the partial plugging mechanism and the aeration screw of the utility model;
[0014] Fig. 4 is the axonometric structural schematic diagram of the connecting mechanism and the sealing screw of the utility model.
[0015] The attached diagram is labeled as follows: 01, connecting mechanism; 11, base; 12, fixing plate; 13, flow channel; 02, plugging mechanism; 21, plug head; 22, O-ring; 03, vent screw; 04, sealing bolt. Detailed Implementation
[0016] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. This utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to make the disclosure of this utility model more thorough and complete.
[0017] like Figs. 1 to 4 As shown, this utility model discloses a novel gas-liquid separator helium detector plug tooling, including a connecting mechanism 01; it also includes three sets of plugging mechanisms 02, three sets of vent screws 03, and sealing screws 04. The three sets of plugging mechanisms 02 are installed on the connecting mechanism 01 to facilitate gas flow between the connecting mechanism 01 and the product. The three sets of vent screws 03 are respectively installed on the three sets of plugging mechanisms 02 and fix the plugging mechanisms 02 to the connecting mechanism 01. The sealing screws 04 are installed on the connecting mechanism 01 to seal the machining holes. The connecting mechanism 01 includes a base 11, two sets of fixing plates 12, and a flow channel 13. The flow channel 13 is provided inside the base 11. Both sets of fixing plates 12 are installed on the base 11, and both sets of fixing plates 12 have fixing holes. The base 11 has machining holes that communicate with the flow channel 13. The plugging mechanism 02 includes a plug head 21 and three sets of O-rings 22. The plug 21 is installed inside the flow channel 13, and three sets of O-rings 22 are installed on the plug 21. The plug 21 is made of POM material. When it is working, firstly, the fixing bolt is passed through the positioning holes of the two sets of fixing plates 12 to fix the base 11 on the working surface, ensuring that the base 11 and the plug 21 are effectively fixed on the brazing assembly during the test. The machining hole reserved in the base is sealed with the sealing screw 04. The three sets of O-rings 22 are put on the plug 21. Then, the plug 21 is inserted into the flow channel 13. The plug 21 is fixed in the flow channel 13 with the vent screw 03, which facilitates the connection between the flow channel 13 and the product. The flow channel 13 promotes the flow of the test gas inside the tooling and the product. The POM material plug 21 can effectively avoid scratching the surface of the parts during tooling assembly and reduce the generation of aluminum chips. It does not react with helium or air.
[0018] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.
Claims
1. A novel helium block plug tool for gas-liquid separator, comprising a connecting mechanism (01); characterized in that, Also include three components of the plugging mechanism (02), three groups of ventilation screw (03) and sealing screw (04), three components of the plugging mechanism (02) is installed on the connecting mechanism (01) and facilitate the flow of gas between the connecting mechanism (01) and the product, three groups of ventilation screw (03) are installed on three components of the plugging mechanism (02) and the plugging mechanism (02) and connecting mechanism (01) fixed connection, sealing screw (04) is installed on the connecting mechanism (01) and sealed to the processing hole.
2. A new type of helium block plug workpiece for gas-liquid separator according to claim 1, characterized in that, The connecting mechanism (01) includes a base (11), two groups of fixed plate (12) and flow channel (13), the inside of base (11) is provided with flow channel (13), two groups of fixed plate (12) are installed on the base (11), two groups of fixed plate (12) are all opened on the fixed hole, the base (11) is opened on the processing hole and is communicated with flow channel (13).
3. A new type of helium block plug tool for gas-liquid separator according to claim 2, characterized in that, The plugging mechanism (02) includes a plugging head (21) and three groups of O type ring (22), the plugging head (21) is installed in the flow channel (13), three groups of O type ring (22) are all installed on the plugging head (21).
4. A new type of helium block plug tool for gas-liquid separator according to claim 3, characterized in that, Also include the plugging head (21) is POM material.
Citation Information
Patent Citations
Helium leak detection plug tool
CN219495588U