Gas tightness testing device of gas pressure regulator

Abstract

The utility model relates to the technical field of gas pressure regulator testing, in particular to a gas tightness testing device of a gas pressure regulator, which is provided with a strap structure capable of being adjusted, is convenient to carry a nitrogen cylinder and then move to a proper position for use, and is low in cost and strong in practicability. Comprising a fuel gas pressure regulator body, a first opening and closing valve, an air pressure detector, a second opening and closing valve and a quick plug bush, one side of the fuel gas pressure regulator body communicates with the inner side of the first opening and closing valve, and the fuel gas pressure regulator further comprises a quick plug, a gas conveying pipe, a third opening and closing valve, a nitrogen tank, a connecting plate, a strap, an adjusting clamp and a clamping frame. The outer portions of the left side and the right side of the connecting plate are respectively connected with a set of straps, the upper portion of the front side of each set of straps is movably provided with a set of adjusting clamps, the upper right side of the connecting plate is connected with the inner side of a clamping frame, and the clamping frame is detachably connected with the quick plug in a clamped mode.

Description

Technical Field

[0001] This utility model relates to the technical field of gas pressure regulator testing, specifically a gas pressure regulator airtightness testing device. Background Technology

[0002] A gas pressure regulator is a device used to regulate the pressure of gas, primarily for maintaining stable downstream pressure.

[0003] To ensure its accuracy and safety, an airtightness test is required. An existing airtightness testing device for a gas pressure regulator, such as one described in patent publication number CN215296586U, involves moving the first connecting frame to a suitable position, then activating the drive mechanism. The drive mechanism rotates four sets of threaded pipes, adjusting the second connecting frame to a suitable height, and then connecting the output end of the quick-release gas hose to the bottom input end of the second connecting pipe. Next, the third valve and the first valve are opened to deliver nitrogen gas into the gas pressure regulator body through the quick-release gas hose. After delivery, the third valve is closed. The pressure change inside the gas pressure regulator body is continuously observed and tested using a pressure gauge. This effectively improves testing efficiency, avoids equipment disassembly, reduces labor and time costs, and enhances practicality.

[0004] However, due to the quick-release gas hose, the lifting mechanism of this device is too complex, costly, and impractical. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] To address the shortcomings of existing technologies, this utility model provides an adjustable shoulder strap structure for convenient carrying of nitrogen cylinders and moving them to suitable locations for use. It is a low-cost and highly practical gas pressure regulator airtightness testing device.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: a gas pressure regulator airtightness testing device, comprising a gas pressure regulator body, an on / off valve one, a gas pressure detector, an on / off valve two, and a quick-connect sleeve. One side of the gas pressure regulator body is connected to the inner side of the on / off valve one, and the gas pressure detector is also connected to the outer side of the on / off valve one. The other side of the gas pressure regulator body is connected to the inner end of the on / off valve two, and a quick-connect sleeve is connected to the outer side of the on / off valve two. The device also includes a quick-connect plug, a gas supply pipe, and an on / off valve three. The nitrogen tank includes a connecting plate, shoulder straps, adjustment clips, and a clip holder. The output end of the nitrogen tank is connected to one side of the gas supply pipe, which is equipped with an on / off valve. The tail end of the gas supply pipe is connected to the outside of a quick plug. The quick plug and quick socket are detachable and installable. The front side of the nitrogen tank is connected to the middle of the rear side of the connecting plate. A set of shoulder straps is connected to the outer sides of the left and right sides of the connecting plate. An adjustment clip is movably installed on the upper front side of each set of shoulder straps. The upper right side of the connecting plate is connected to the inner side of the clip holder. The clip holder and quick plug are detachably snapped together.

[0009] Preferably, it also includes a screw-on handle, wherein the quick-connect sleeve and quick-connect plug are installed by a threaded connection, and one side of the upper outer end of the quick-connect plug is connected to the inner side of the screw-on handle.

[0010] Preferably, it also includes a lifting rope, with the upper two sides of the nitrogen tank connected to the lower two sides of the lifting rope.

[0011] Preferably, it also includes an information board, with the rear middle side of the nitrogen tank connected to the inner side of the information board.

[0012] Preferably, it also includes a bottom ring pad, wherein the outer ring side of the bottom end of the nitrogen tank is connected to the inner side of the top end of the bottom ring pad.

[0013] Preferably, it also includes a contact pad, wherein the front side of the connecting plate is connected to the rear side of the contact pad.

[0014] (III) Beneficial Effects

[0015] Compared with the prior art, this utility model provides a gas pressure regulator airtightness testing device, which has the following beneficial effects:

[0016] The gas pressure regulator is installed and fixed on the gas pipeline. During operation, it maintains the closed state of valve one and valve two. The nitrogen tank can be placed on the back of the operator via a connecting plate and secured to both shoulders with two sets of shoulder straps. The straps are adjusted and tightened by an adjustable clip. During testing, the operator walks to the gas pressure regulator, removes the quick plug from the clip holder, and seals it in the quick plug sleeve. Then, valves two and three are opened simultaneously to output a fixed amount of nitrogen from the nitrogen tank into the gas pressure regulator. After that, valves two and three are closed, the quick plug is removed from the quick plug sleeve, valve one is opened, and a pressure detector measures the pressure change to check the airtightness. The adjustable shoulder strap structure facilitates carrying the nitrogen cylinder and moving it to a suitable location for use. It is low-cost and highly practical. Attached Figure Description

[0017] Figure 1 This is an axial view of the structural schematic diagram of this utility model;

[0018] Figure 2 This utility model Figure 1 Rear view;

[0019] Figure 3 This utility model Figure 1 The left view;

[0020] Figure 4 This utility model Figure 1 The top view.

[0021] The following are labeled in the attached diagram: 1. Gas pressure regulator body; 2. On / off valve one; 3. Gas pressure detector; 4. On / off valve two; 5. Quick-connect sleeve; 6. Quick-connect plug; 7. Gas pipe; 8. On / off valve three; 9. Nitrogen tank; 10. Connecting plate; 11. Shoulder strap; 12. Adjustment clip; 13. Twist handle; 14. Lifting rope; 15. Information plate; 16. Bottom ring pad; 17. Contact pad; 18. Card holder. Detailed Implementation

[0022] 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.

[0023] Example

[0024] Please see Figure 1-4A gas pressure regulator airtightness testing device includes a gas pressure regulator body 1, a first on / off valve 2, a gas pressure detector 3, a second on / off valve 4, and a quick-connect sleeve 5. One side of the gas pressure regulator body 1 is connected to the inner side of the first on / off valve 2, and the gas pressure detector 3 is also connected to the outer side of the first on / off valve 2. The other side of the gas pressure regulator body 1 is connected to the inner end of the second on / off valve 4, and the quick-connect sleeve 5 is connected to the outer side of the second on / off valve 4. The device also includes a quick-connect plug 6 and a gas delivery pipe 7. The system includes a three-way valve 8, a nitrogen tank 9, a connecting plate 10, a shoulder strap 11, an adjusting clip 12, and a clip holder 18. The output end of the nitrogen tank 9 is connected to one side of the gas supply pipe 7. The gas supply pipe 7 is equipped with a three-way valve 8. The tail end of the gas supply pipe 7 is connected to the outside of the quick plug 6. The quick plug 6 and the quick socket 5 are detachable. The front side of the nitrogen tank 9 is connected to the middle of the rear side of the connecting plate 10. A set of shoulder straps 11 is connected to the outside of the left and right sides of the connecting plate 10, respectively. Each set of shoulder straps 11 has a front... A set of adjustment clips 12 are movably installed on the upper side. The upper right side of the connecting plate 10 is connected to the inner side of the clip holder 18. The clip holder 18 and the quick plug 6 are detachably clipped together. The gas pressure regulator body 1 is installed and fixed on the gas pipeline. During operation, it keeps the first and second opening and closing valves 2 and 4 closed. The nitrogen tank 9 can be placed on the back of the operator by the connecting plate 10 and tied to the shoulders by two sets of shoulder straps 11. It is adjusted and tightened by the adjustment clips 12. During testing, the operator walks to the gas pressure regulator body 1, removes the quick plug 6 from the clip holder 18, and seals it in the quick plug sleeve 5. Then, the second and third opening and closing valves 4 and 8 are opened simultaneously to output a metered amount of nitrogen from the nitrogen tank 9 into the gas pressure regulator body 1. Then, the second and third opening and closing valves 4 and 8 are closed, the quick plug 6 is removed from the quick plug sleeve 5, the first opening and closing valve 2 is opened, and the gas pressure detector 3 detects the gas pressure change to test the airtightness.

[0025] It also includes a screw-on handle 13, a quick-connect sleeve 5 and a quick-connect plug 6 which are threaded connection installations, and the upper part of the outer end of the quick-connect plug 6 is connected to the inner side of the screw-on handle 13; by squeezing the screw-on handle 13, the quick-connect plug 6 can be connected and rotated, which makes it easy for the quick-connect plug 6 to be screwed on and closed inside the quick-connect sleeve 5. When the quick-connect plug 6 is screwed on and tightened inside the quick-connect sleeve 5, it can maintain good sealing performance.

[0026] It also includes a lifting rope 14, with the upper two sides of the nitrogen tank 9 connected to the lower two sides of the lifting rope 14 respectively; by holding the lifting rope 14, the nitrogen tank 9 can be connected to the lifting rope 14 for carrying and moving, improving convenience.

[0027] It also includes an information board 15, with the rear center of the nitrogen tank 9 connected to the inner side of the information board 15; the information board 15 can display information about the device, making it easier to read, distinguish, and use, thus improving convenience.

[0028] It also includes a bottom ring pad 16, with the outer ring side of the bottom end of the nitrogen tank 9 connected to the inner side of the top end of the bottom ring pad 16; the bottom ring pad 16 can buffer and contact the bottom of the nitrogen tank 9, avoiding bumps and wear, and improving reliability.

[0029] It also includes a contact pad 17, with the front side of the connecting plate 10 connected to the rear side of the contact pad 17; the contact pad 17 allows the front side of the connecting plate 10 to contact the back, improving comfort and preventing bruising.

[0030] In summary, when using a gas pressure regulator airtightness testing device, the gas pressure regulator body 1 is installed and fixed on the gas pipeline. During operation, it maintains the closed state of the first and second opening and closing valves 2 and 4. The nitrogen tank 9 can be placed on the back of the operator via the connecting plate 10 and secured to both shoulders by two sets of shoulder straps 11, and tightened by the adjusting clip 12. During testing, the operator walks to the gas pressure regulator body 1, removes the quick plug 6 from the clip 18, and rotates it by squeezing and turning the handle 13. This allows the quick plug 6 to be screwed on and off inside the quick socket 5. When the quick plug 6 is screwed on and tightened inside the quick socket 5, good airtightness is maintained. The system seals the gas cylinder 9, then simultaneously opens valves 4 and 8 to output a measured amount of nitrogen from the cylinder 9 into the gas regulator body 1. Then, valves 4 and 8 are closed, and the quick-connect plug 6 is removed from the quick-connect sleeve 5. Valve 2 is opened, and the pressure detector 3 detects pressure changes to check the airtightness. The cylinder 9 can be carried by the holding rope 14. Information about the device is displayed on the information board 15 for easy reading, identification, and use. The bottom ring pad 16 cushions the bottom of the cylinder 9 to prevent bumps and wear. The contact pad 17 allows for contact between the front and back of the connecting plate 10, improving comfort and preventing injury.

[0031] The gas pressure regulator body 1 and the gas pressure detector 3 are commercially available devices known to those skilled in the art. We are simply using them here without making any structural or functional improvements, and we will not go into detail about them here.

[0032] 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 gas pressure regulator body (1), a first on / off valve (2), a gas pressure detector (3), a second on / off valve (4), and a quick-connect sleeve (5), wherein one side of the gas pressure regulator body (1) is connected to the inner side of the first on / off valve (2), and the outer side of the first on / off valve (2) is also connected to the gas pressure detector (3); the other side of the gas pressure regulator body (1) is connected to the inner end of the second on / off valve (4), and the outer side of the second on / off valve (4) is connected to the quick-connect sleeve (5), characterized in that, It also includes a quick plug (6), a gas supply pipe (7), a three-way valve (8), a nitrogen tank (9), a connecting plate (10), a shoulder strap (11), an adjustment clip (12), and a clip holder (18). The output end of the nitrogen tank (9) is connected to one side of the gas supply pipe (7). The three-way valve (8) is installed on the gas supply pipe (7). The tail end of the gas supply pipe (7) is connected to the outside of the quick plug (6). The quick plug (6) and the quick plug sleeve (5) are detachable and installable. The front side of the nitrogen tank (9) is connected to the middle of the rear side of the connecting plate (10). A set of shoulder straps (11) is connected to the outside of the left and right sides of the connecting plate (10). A set of adjustment clips (12) is movably installed on the upper front side of each set of shoulder straps (11). The upper right side of the connecting plate (10) is connected to the inside of the clip holder (18). The clip holder (18) and the quick plug (6) are detachably clipped together.

2. The gas tightness testing device for a gas pressure regulator according to claim 1, characterized in that: It also includes a screw handle (13), the quick plug (5) and the quick plug (6) are installed by threaded connection, and the upper side of the outer end of the quick plug (6) is connected to the inner side of the screw handle (13).

3. The gas tightness testing device for a gas pressure regulator according to claim 1, characterized in that: It also includes a lifting rope (14), with the upper sides of the nitrogen tank (9) connected to the bottom sides of the lifting rope (14).

4. The gas tightness testing device for a gas pressure regulator according to claim 1, characterized in that: It also includes an information board (15), with the rear middle side of the nitrogen tank (9) connected to the inner side of the information board (15).

5. The gas tightness testing device for a gas pressure regulator according to claim 1, characterized in that: It also includes a bottom ring pad (16), the outer ring side of the bottom end of the nitrogen tank (9) is connected to the inner side of the top end of the bottom ring pad (16).

6. The gas tightness testing device for a gas pressure regulator according to claim 1, characterized in that: It also includes a contact pad (17), the front side of which is connected to the rear side of the contact pad (17).

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