Gas tightness testing device for gas pressure regulator

Abstract

The utility model provides a gas pressure regulator gas tightness test device, relates to the pressure regulator gas tightness detection technology field, and comprises a test protection shell and a closed pressure detection mechanism, the inner side of the test protection shell is provided with the closed pressure detection mechanism, when in use, through the arrangement of a sealing assembly, the closed pressure detection mechanism can detect the gas tightness of the gas pressure regulator. A sealing rubber strip is clamped at the joint of the test protection shell and the sealing top shell, and is in threaded connection and fixation through fixing rings extending from the two sides, so that the airtightness in the airtightness detection process is further ensured to be complete, and when the pressure regulator is fixed inside, the airtightness of the pressure regulator can be detected by supplying gas for airtightness detection to the inside of the gas injection assembly. According to the invention, the air tightness of the pressure regulator is detected, and in the detection process, the vacuum air extraction assembly arranged at the rear side of the test protection shell drives the air extraction opening to completely extract the interior through the air pump, so that the interior of the test protection shell is in a vacuum state, and therefore, the pressure regulator can be ensured not to be influenced by the test environment in the air tightness test process.

Description

Technical Field

[0001] This utility model relates to the field of pressure regulator air tightness testing technology, and in particular to a device for testing the air tightness of a gas pressure regulator. Background Technology

[0002] Gas pressure regulators are key components in gas transmission and distribution systems. Their main function is to reduce high-pressure or medium-pressure inlet gas to the lower pressure required downstream and maintain this pressure relatively stable, even if upstream pressure and flow change. Regulators are widely used in residential, commercial, industrial, and city gas networks to ensure the safe and efficient delivery of gas to end users. The safety of gas pressure regulators is paramount, as any leak can lead to fire, explosion, or poisoning accidents, posing a serious threat to people and property. Therefore, regulators must undergo rigorous airtightness testing before leaving the factory and during regular maintenance to ensure they maintain good sealing performance under various conditions. With technological advancements, airtightness testing devices have evolved from manual to automated, and from single-function to multi-function. Modern testing devices can not only quickly and accurately detect leaks but also record and analyze test data, improving production efficiency and quality control levels.

[0003] However, during the airtightness test, the accuracy of the testing device may be affected by a variety of factors, including temperature changes, air pressure fluctuations, and equipment aging. This may lead to uncertainty in the test results and affect the accuracy of the judgment. The testing device may have specific requirements for the working environment, such as temperature, humidity and cleanliness. An unsuitable environment may affect the reliability of the test results.

[0004] Therefore, we provide a device for testing the airtightness of gas pressure regulators to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a gas pressure regulator airtightness testing device to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a gas pressure regulator airtightness testing device, comprising a test protective shell and a sealing pressure detection mechanism, wherein the sealing pressure detection mechanism is provided on the inner side of the test protective shell;

[0007] The sealed pressure testing mechanism includes a sealing component, an air injection component, a vacuum extraction component, a pressure injection component, and an auxiliary fixing component. The sealing component is fixedly threaded to the upper side of the test protective shell. The air injection component is connected to one side of the test protective shell through a pipe. The vacuum extraction component is connected to the other side of the test protective shell through a pipe. The pressure injection component is connected to the inner side of the test protective shell through a pipe. An auxiliary fixing component is provided on one side of the pressure injection component.

[0008] Preferably, the sealing assembly includes a sealing top shell, a transparent glass cover, a fixing ring, a set bolt, and a sealing rubber strip. The sealing top shell is threadedly connected to the upper side of the test protective shell, the transparent glass cover is fixedly connected to the middle of the sealing top shell, the fixing rings are fixedly connected to both sides of the sealing top shell, the set bolts are threadedly connected to the inner side of the fixing rings, and a sealing rubber strip is sleeved at the connection between the sealing top shell and the test protective shell.

[0009] Preferably, the gas injection assembly includes a gas injection port and an auxiliary port, with a gas injection port connected to one side of the test protective shell and auxiliary ports connected to both sides of the test protective shell.

[0010] Preferably, the vacuum pumping assembly includes a suction port, an air pump, and an exhaust port. The suction port is connected to a pipe on the other side of the test protective shell. An air pump is installed on the upper side of the suction port, and an exhaust port is connected to the pipe at the end of the suction port.

[0011] Preferably, the pressure injection assembly includes a main pressure injection pipe and an auxiliary pressure injection pipe. The air injection port penetrates the test protective shell and is connected to the main pressure injection pipe inside. The auxiliary pressure injection pipes are connected to the pipes on both sides of the main pressure injection pipe.

[0012] Preferably, the auxiliary fixing component includes a sealed port, a fixing rod, and a fixing bolt. The sealed port is fixedly connected to one side of the test protective shell, the fixing rod is fixedly connected to one side of the sealed port, and the fixing bolt is fixedly connected to one side of the fixing rod.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. Through the setting of the sealed pressure testing mechanism, during use, a sealing rubber strip is snapped at the connection between the test protective shell and the sealed top shell through the setting of the sealing component, and is fixed by the threaded connection of the fixing rings extending from both sides, further ensuring the integrity of the seal during the airtightness test. When the pressure regulator is fixed inside, the airtightness of the pressure regulator is tested by the gas inside the gas injection component. During the test, the vacuum pumping component set on the rear side of the test protective shell will drive the pumping port to completely extract the inside, making the inside of the test protective shell a vacuum state. In this way, it can be ensured that the pressure regulator is not affected by the test environment during the airtightness test. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall appearance structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the overall appearance of the present invention on the right side.

[0017] Figure 3 This is a schematic diagram of the overall internal structure of this utility model;

[0018] The diagram is labeled as follows: 1. Test protective shell; 2. Sealing pressure testing mechanism; 21. Sealing assembly; 211. Sealing top shell; 212. Transparent glass cover; 213. Fixing ring; 214. Set bolt; 215. Sealing rubber strip; 22. Injection assembly; 221. Injection port; 222. Auxiliary port; 23. Vacuum extraction assembly; 231. Extraction port; 232. Air pump; 233. Exhaust port; 24. Pressure injection assembly; 241. Pressure injection main pipe; 242. Pressure injection auxiliary pipe; 25. Auxiliary fixing assembly; 251. Sealing port; 252. Fixing rod; 253. Fixing bolt. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figure 1-3 As shown, this utility model provides a technical solution: a gas pressure regulator airtightness testing device, including a test protective shell 1 and a sealing pressure detection mechanism 2, wherein the sealing pressure detection mechanism 2 is provided on the inner side of the test protective shell 1.

[0021] The sealed pressure testing mechanism 2 includes a sealing component 21, an air injection component 22, a vacuum extraction component 23, a pressure injection component 24, and an auxiliary fixing component 25. The sealing component 21 is fixedly threaded to the upper side of the test protective shell 1. The air injection component 22 is connected to one side of the test protective shell 1 through a pipe. The vacuum extraction component 23 is connected to the other side of the test protective shell 1 through a pipe. The pressure injection component 24 is connected to the inner side of the test protective shell 1 through a pipe. The auxiliary fixing component 25 is provided on one side of the pressure injection component 24.

[0022] Furthermore, the sealing assembly 21 includes a sealing top shell 211, a transparent glass cover 212, a retaining ring 213, a set bolt 214, and a sealing rubber strip 215. The sealing top shell 211 is threadedly connected to the upper side of the test protective shell 1. The transparent glass cover 212 is fixedly connected to the middle of the sealing top shell 211. The retaining rings 213 are fixedly connected to both sides of the sealing top shell 211. The set bolts 214 are threadedly connected to the inner side of the retaining rings 213. The sealing rubber strip 215 is sleeved at the connection between the sealing top shell 211 and the test protective shell 1. In use, by engaging the sealing rubber strip 215 at the connection between the test protective shell 1 and the sealing top shell 211, the sealing performance of the test protective shell 1 can be guaranteed to be good during the testing process, preventing interference from gas during the airtightness test.

[0023] Furthermore, the gas injection assembly 22 includes a gas injection port 221 and an auxiliary port 222. One side of the test protective housing 1 is connected to the gas injection port 221, and the two sides of the test protective housing 1 are connected to the auxiliary port 222. In use, by connecting the gas injection device to the gas injection port 221 and the auxiliary port 222 respectively, and when the pressure regulator is fixed inside the test device, the airtightness of the pressure regulator can be well detected by injecting pressure into the pressure regulator.

[0024] Furthermore, the vacuum pumping assembly 23 includes a suction port 231, an air pump 232, and an exhaust port 233. The suction port 231 is connected to a pipe on the other side of the test protective shell 1. The air pump 232 is installed on the upper side of the suction port 231, and the exhaust port 233 is connected to the end pipe of the suction port 231. During use, the air pump 232 drives the suction port 231 to remove the gas inside the test protective shell 1, so that the inside of the test protective shell 1 is in a complete vacuum state, which can prevent the airtightness test from being affected by the environment.

[0025] Furthermore, the pressure injection assembly 24 includes a main pressure injection pipe 241 and an auxiliary pressure injection pipe 242. The air injection port 221 penetrates the test protective shell 1 and is connected to the inner side of the main pressure injection pipe 241. The auxiliary pressure injection pipes 242 are connected to the pipes on both sides of the main pressure injection pipe 241. The main pressure injection pipe 241 and the auxiliary pressure injection pipe 242 are respectively the air injection port 221 and the auxiliary port 222, which penetrate the test protective shell 1 and are connected to its pipes.

[0026] Furthermore, the auxiliary fixing component 25 includes a sealed port 251, a fixing rod 252, and a fixing bolt 253. The sealed port 251 is fixedly connected to one side of the test protective shell 1, the fixing rod 252 is fixedly connected to one side of the sealed port 251, and the fixing bolt 253 is fixedly connected to one side of the fixing rod 252. With the setting of the auxiliary fixing component 25, the pressure regulator can be well fixed inside the test protective shell 1 during use and sealed with the injection component 24.

[0027] Working principle: First, a gas pressure regulator airtightness testing device is installed in the designated location. During use, a sealing rubber strip 215 is snapped into place at the connection between the test protective shell 1 and the sealing top shell 211 through the sealing component 21. The fixing rings 213 extending from both sides are threadedly connected to the test protective shell 1 by the set bolts 214, further ensuring the integrity of the seal during the airtightness test. When the regulator is fixed inside, the airtightness test gas is injected into the gas injection component 22 to test the airtightness of the regulator. During the test, the vacuum extraction component 23 located on the rear side of the test protective shell 1 uses the air pump 232 to drive the extraction port 231 to extract the internal air, making the inside of the test protective shell 1 a vacuum state. In this way, the regulator is not affected by the test environment during the airtightness test. Thus, the use of the gas pressure regulator airtightness testing device is completed.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A gas pressure regulator airtightness testing device, comprising a test protective shell (1) and a sealing pressure detection mechanism (2), characterized in that: The inner side of the test protective shell (1) is provided with a sealed pressure detection mechanism (2). The sealed pressure testing mechanism (2) includes a sealing component (21), an air injection component (22), a vacuum pumping component (23), a pressure injection component (24), and an auxiliary fixing component (25). The upper side of the test protective shell (1) is fixedly threaded with the sealing component (21). One side of the test protective shell (1) is connected to the air injection component (22). The other side of the test protective shell (1) is connected to the vacuum pumping component (23). The inner side of the test protective shell (1) is connected to the pressure injection component (24). An auxiliary fixing component (25) is provided on one side of the pressure injection component (24).

2. The gas pressure regulator airtightness testing device according to claim 1, characterized in that, The sealing assembly (21) includes a sealing top shell (211), a transparent glass cover plate (212), a fixing ring (213), a set bolt (214), and a sealing rubber strip (215). The upper side of the test protective shell (1) is threaded with the sealing top shell (211). The middle part of the sealing top shell (211) is fixedly connected with the transparent glass cover plate (212). The two sides of the sealing top shell (211) are fixedly connected with the fixing ring (213). The inner side of the fixing ring (213) is threaded with the set bolt (214). The sealing rubber strip (215) is sleeved at the connection between the sealing top shell (211) and the test protective shell (1).

3. The gas pressure regulator airtightness testing device according to claim 1, characterized in that, The gas injection assembly (22) includes a gas injection port (221) and an auxiliary port (222). One side of the test protective shell (1) is connected to the gas injection port (221), and the two sides of the test protective shell (1) are connected to the auxiliary port (222).

4. The gas pressure regulator airtightness testing device according to claim 1, characterized in that, The vacuum pumping assembly (23) includes a suction port (231), an air pump (232) and an exhaust port (233). The other side of the test protective shell (1) is connected to the suction port (231). The air pump (232) is installed on the upper side of the suction port (231). The exhaust port (233) is connected to the end of the suction port (231).

5. The gas pressure regulator airtightness testing device according to claim 3, characterized in that, The pressure injection assembly (24) includes a main pressure injection pipe (241) and a pressure injection auxiliary pipe (242). The air injection port (221) penetrates the test protective shell (1) and is connected to the inner main pressure injection pipe (241). The two sides of the main pressure injection pipe (241) are connected to the pressure injection auxiliary pipe (242).

6. The gas pressure regulator airtightness testing device according to claim 1, characterized in that, The auxiliary fixing component (25) includes a sealed port (251), a fixing rod (252) and a fixing bolt (253). The sealed port (251) is fixedly connected to one side of the test protective shell (1), the fixing rod (252) is fixedly connected to one side of the sealed port (251), and the fixing bolt (253) is fixedly connected to one side of the fixing rod (252).

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