Meter connector with leakage-proof function

By designing a double-flow chamber and leak-proof plug structure in the meter joint, the problem of leakage of the pressure gauge joint is solved, and an effective leakage prevention effect is achieved, ensuring the safety and operation safety of the pressure gauge.

CN222124607UActive Publication Date: 2024-12-06WENZHOU HEQIANG HARDWARE PROD CO LTD
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Patent Information

Application Number
CN202420958839.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-05-06
Publication Date
2024-12-06
Estimated Expiration
2034-05-06

AI Technical Summary

Technical Problem

When existing pressure gauge joints are damaged or frozen, they can easily lead to media leakage, causing damage and contamination of the pressure gauge, affecting safety.

Method used

A meter joint with leakage-proof function is designed, adopting a dual flow chamber and leakage-proof plug structure. When a pressure gauge leaks, the high pressure pushes the leakage-proof plug to overcome the spring force, and prevents liquid leakage through the double sealing structure, including The first flow chamber inside the meter joint body and the second flow chamber inside the pressure gauge connection pipe are communicated through the first and second flow ports, and small and large shut-ins are provided at the bottom and top of the leakage-proof lock-ins. to achieve sealing.

Benefits of technology

Effectively prevent liquid leakage, protect pressure gauge, avoid polluting air, ensure personal safety, and improve the safety and stability of pressure gauge use.

✦ Generated by Eureka AI based on patent content.

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    Figure CN222124607U_ABST
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Abstract

The utility model discloses a gauge connector with a leak-proof function, which comprises a gauge connector body, a first circulation cavity, a pressure gauge connecting pipe, a second circulation cavity and a leak-proof plug, the first circulation cavity is arranged in the gauge connector body, a second circulation opening is arranged in the first circulation cavity, and the pressure gauge connecting pipe is arranged in the second circulation opening. The pressure gauge connecting pipe is arranged above the gauge connector body, the second circulating cavity is formed in the pressure gauge connecting pipe and communicates with the first circulating cavity through a first circulating opening, the leakage-proof plug is arranged in the first circulating cavity, and small plug blocks are fixed to the bottom ends of the leakage-proof plug. A large blocking block is fixed to the top end of the leakage-proof plug, and the outer wall of the leakage-proof plug is sleeved with a spring. According to the utility model, a double-sealing structure is adopted, the leakproof effect is good, and liquid leakage can be prevented from damaging the pressure gauge, polluting air and harming personal safety.
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Description

Technical Field

[0001] The utility model relates to the technical field of meter joints, in particular to a meter joint with a leak-proof function. Background Art

[0002] The gauge joint is a component that connects the instrument gauge and the pipeline. The pressure gauge joint is the key connector between the pressure gauge and the pressure system being measured. It can ensure a good connection between the measured system and the pressure gauge, so that the pressure signal can be accurately transmitted to the pressure gauge. Through the pressure gauge joint, the operator can observe and monitor the pressure changes in the measured system in real time, so as to understand the system working status in time and ensure the safety and stability of production operation.

[0003] When the pressure gauge is damaged or frozen and is not properly maintained, the medium in the measuring pipeline will leak, which will reduce the gauge pressure. The medium will enter the pressure gauge through the pressure gauge joint, causing more serious damage to the pressure gauge. If the medium is corrosive or dangerous, it will not only corrode the pressure gauge, but also pollute the air and affect the personal safety of station employees. Therefore, we propose a gauge joint with a leak-proof function. Utility Model Content

[0004] The utility model aims to provide a meter connector with a leak-proof function to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a meter joint with a leak-proof function, comprising a meter joint body, a first flow cavity, a pressure gauge connecting pipe, a second flow cavity and a leak-proof plug, wherein the first flow cavity is arranged inside the meter joint body, and the inside of the first flow cavity is provided with a second flow port, the pressure gauge connecting pipe is arranged above the meter joint body, the second flow cavity is arranged inside the pressure gauge connecting pipe, and the second flow cavity is connected to the first flow cavity through the first flow port, the leak-proof plug is arranged inside the first flow cavity, and a small block is fixed to the bottom end of the leak-proof plug, and a large block is fixed to the top end of the leak-proof plug, and a spring is mounted on the outer wall of the leak-proof plug.

[0006] By adopting the above technical scheme, during normal use, the pressure inside the first circulation chamber and the second circulation chamber is the same, the liquid flows through the second circulation port and the first circulation port in sequence and circulates in the first circulation chamber and the second circulation chamber, and the pressure gauge measures the liquid pressure; when the pressure gauge leaks, the pressure in the second circulation chamber drops instantly, so that a pressure difference is formed between the second circulation chamber and the first circulation chamber, the first circulation chamber is high pressure, and the second circulation chamber is low pressure. Under the action of the pressure difference, the high pressure pushes the leak-proof plug to overcome the elastic force of the spring, and the leak-proof plug moves toward the direction of the second circulation chamber. At this time, the small block at the bottom of the leak-proof plug blocks the second circulation port to seal the first circulation chamber once, and the large block at the top of the leak-proof plug blocks the first circulation port to seal the first circulation chamber again. The double sealing structure has a good anti-leakage effect, and the gauge joint has a leak-proof function, which can prevent liquid leakage from damaging the pressure gauge and polluting the air and endangering personal safety.

[0007] The utility model is further configured as follows: a first internal thread groove and a second internal thread groove are respectively arranged on the inner walls of the top and the bottom of the meter joint body.

[0008] The utility model is further configured as follows: the outer walls of the top end and the bottom end of the meter joint body are respectively provided with a first external thread strip and a second external thread strip.

[0009] The utility model is further configured as follows: an upper sealing sleeve is sleeved on the top end of the gauge joint body, the upper sealing sleeve is threadedly connected to the gauge joint body through a first external thread strip, and a first sealing ring is adhered to the inner wall of the upper sealing sleeve.

[0010] By adopting the above technical solution, the upper sealing sleeve is sleeved on the top of the gauge joint body, the upper sealing sleeve is threadedly connected to the gauge joint body through the first external thread strip, the pressure gauge connecting pipe passes through the upper sealing sleeve and is threadedly connected to the gauge joint body through the first internal thread groove, the first sealing ring on the inner wall of the upper sealing sleeve is tightly fitted to the pressure gauge connecting pipe, thereby improving the sealing performance of the connection between the pressure gauge connecting pipe and the gauge joint body.

[0011] The utility model is further configured as follows: a lower sealing sleeve is sleeved on the bottom end of the gauge joint body, the lower sealing sleeve is threadedly connected to the gauge joint body through a second external thread strip, and a second sealing ring is adhered to the inner wall of the lower sealing sleeve.

[0012] By adopting the above technical solution, the gauge joint body is connected to the pipeline through the second internal thread groove. Since the lower sealing sleeve is sleeved on the bottom of the gauge joint body through the second external thread strip, the second sealing ring on the inner wall of the lower sealing sleeve fits tightly with the pipeline, thereby improving the sealing performance of the connection between the gauge joint body and the pipeline.

[0013] The utility model is further configured as follows: the pressure gauge connecting pipe is threadedly connected to the gauge joint body through a first internal thread groove.

[0014] The utility model is further configured as follows: the anti-leakage plug is an "I"-shaped structure.

[0015] The utility model is further configured as follows: the small blocking block and the large blocking block are tightly fitted with the second flow opening and the first flow opening respectively.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] During normal use, the pressure inside the first circulation chamber and the second circulation chamber is the same, and the liquid flows through the second circulation port and the first circulation port in turn and circulates in the first circulation chamber and the second circulation chamber, and the pressure gauge measures the liquid pressure; when the pressure gauge leaks, the pressure in the second circulation chamber drops instantly, so that a pressure difference is formed between the second circulation chamber and the first circulation chamber, the first circulation chamber is high pressure, and the second circulation chamber is low pressure. Under the action of the pressure difference, the high pressure pushes the leak-proof plug to overcome the elastic force of the spring, and the leak-proof plug moves toward the direction of the second circulation chamber. At this time, the small block at the bottom of the leak-proof plug blocks the second circulation port to seal the first circulation chamber once, and the large block at the top of the leak-proof plug blocks the first circulation port to seal the first circulation chamber again. The double sealing structure has a good anti-leakage effect. The gauge joint has a leak-proof function, which can prevent liquid leakage from damaging the pressure gauge and polluting the air and endangering personal safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a cross-sectional structural schematic diagram of the utility model;

[0019] Figure 2 For the utility model Figure 1 The enlarged structural diagram at A in the middle;

[0020] Figure 3 This is a schematic diagram of the leak-proof structure of the utility model;

[0021] Figure 4 For the utility model Figure 3 The enlarged structural diagram at B in the middle;

[0022] Figure 5 It is a partial enlarged structural schematic diagram of the utility model.

[0023] In the figure: 1. gauge connector body; 2. first flow cavity; 3. first flow port; 4. first internal thread groove; 5. pressure gauge connecting pipe; 6. second flow cavity; 7. second flow port; 8. second internal thread groove; 9. leak-proof plug; 10. small plug; 11. large plug; 12. spring; 13. first external thread strip; 14. upper sealing sleeve; 15. first sealing ring; 16. second external thread strip; 17. lower sealing sleeve; 18. second sealing ring. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. All other embodiments obtained by ordinary technicians in the field without creative work based on the embodiments of the utility model shall fall within the scope of protection of the utility model.

[0025] See also Figure 1-5 The utility model provides an embodiment: a meter joint with a leak-proof function, comprising a meter joint body 1, a first flow cavity 2, a pressure gauge connecting pipe 5, a second flow cavity 6 and a leak-proof plug 9, the first flow cavity 2 is arranged inside the meter joint body 1, and the first flow cavity 2 is provided with a second flow port 7 inside, the pressure gauge connecting pipe 5 is arranged above the meter joint body 1, the second flow cavity 6 is arranged inside the pressure gauge connecting pipe 5, and the second flow cavity 6 is connected with the first flow cavity 2 through the first flow port 3;

[0026] The leak-proof plug 9 is arranged inside the first flow chamber 2, and a small block 10 is fixed to the bottom of the leak-proof plug 9, and a large block 11 is fixed to the top of the leak-proof plug 9, and a spring 12 is sleeved on the outer wall of the leak-proof plug 9;

[0027] Specifically, in normal use, the pressure inside the first circulation chamber 2 and the second circulation chamber 6 is the same, and the liquid flows through the second circulation port 7 and the first circulation port 3 in sequence and circulates in the first circulation chamber 2 and the second circulation chamber 6, and the pressure gauge measures the liquid pressure;

[0028] When the pressure gauge leaks, the pressure in the second circulation chamber 6 drops instantly, so that a pressure difference is formed between the second circulation chamber 6 and the first circulation chamber 2. The first circulation chamber 2 is under high pressure, and the second circulation chamber 6 is under low pressure. Under the action of the pressure difference, the high pressure pushes the leak-proof plug 9 to overcome the elastic force of the spring 12, and the leak-proof plug 9 moves toward the second circulation chamber 6. At this time, the small block 10 at the bottom of the leak-proof plug 9 blocks the second circulation port 7, and the first circulation chamber 2 is sealed once. The large block 11 at the top of the leak-proof plug 9 blocks the first circulation port 3, and the first circulation chamber 2 is sealed again. The double sealing structure has a good anti-leakage effect.

[0029] The inner walls of the top and bottom of the meter joint body 1 are respectively provided with a first internal thread groove 4 and a second internal thread groove 8;

[0030] The outer walls of the top and bottom ends of the meter joint body 1 are respectively provided with a first external thread strip 13 and a second external thread strip 16;

[0031] An upper sealing sleeve 14 is sleeved on the top of the meter joint body 1. The upper sealing sleeve 14 is threadedly connected to the meter joint body 1 through a first external thread strip 13, and a first sealing ring 15 is adhered to the inner wall of the upper sealing sleeve 14.

[0032] Specifically, the upper sealing sleeve 14 is sleeved on the top of the gauge joint body 1, the upper sealing sleeve 14 is threadedly connected to the gauge joint body 1 through the first external thread strip 13, the pressure gauge connecting pipe 5 passes through the upper sealing sleeve 14 and is threadedly connected to the gauge joint body 1 through the first internal thread groove 4, and the first sealing ring 15 on the inner wall of the upper sealing sleeve 14 is tightly fitted with the pressure gauge connecting pipe 5, thereby improving the sealing performance of the connection between the pressure gauge connecting pipe 5 and the gauge joint body 1;

[0033] A lower sealing sleeve 17 is sleeved on the bottom end of the meter joint body 1. The lower sealing sleeve 17 is threadedly connected to the meter joint body 1 through a second external thread strip 16, and a second sealing ring 18 is adhered to the inner wall of the lower sealing sleeve 17.

[0034] Specifically, the gauge joint body 1 is connected to the pipeline through the second internal thread groove 8. Since the lower sealing sleeve 17 is sleeved on the bottom of the gauge joint body 1 through the second external thread strip 16, the second sealing ring 18 on the inner wall of the lower sealing sleeve 17 fits tightly with the pipeline, thereby improving the sealing performance of the connection between the gauge joint body 1 and the pipeline.

[0035] The pressure gauge connecting pipe 5 is threadedly connected to the gauge joint body 1 through the first internal thread groove 4;

[0036] The leak-proof plug 9 is an I-shaped structure;

[0037] The small blocking block 10 and the large blocking block 11 are tightly fitted to the second flow opening 7 and the first flow opening 3 respectively.

[0038] When the embodiment of the present application is in use: first, the upper sealing sleeve 14 is sleeved on the top of the gauge joint body 1, and the upper sealing sleeve 14 is threadedly connected to the gauge joint body 1 through the first external thread strip 13. Secondly, the pressure gauge connecting pipe 5 passes through the upper sealing sleeve 14 and is threadedly connected to the gauge joint body 1 through the first internal thread groove 4. The first sealing ring 15 on the inner wall of the upper sealing sleeve 14 fits tightly with the pressure gauge connecting pipe 5, thereby improving the sealing of the connection between the pressure gauge connecting pipe 5 and the gauge joint body 1. Then, the gauge joint body 1 is connected to the pipeline through the second internal thread groove 8. Since the lower sealing sleeve 17 is sleeved on the bottom of the gauge joint body 1 through the second external thread strip 16, the second sealing ring 18 on the inner wall of the lower sealing sleeve 17 fits tightly with the pipeline, thereby improving the sealing of the connection between the gauge joint body 1 and the pipeline. Then, in normal use, the pressure inside the first circulation chamber 2 and the second circulation chamber 6 is the same, and the liquid It flows through the second flow port 7 and the first flow port 3 in sequence and flows in the first flow cavity 2 and the second flow cavity 6, and the pressure gauge measures the liquid pressure; when the pressure gauge leaks, the pressure in the second flow cavity 6 drops instantly, so that a pressure difference is formed between the second flow cavity 6 and the first flow cavity 2, the first flow cavity 2 is high pressure, and the second flow cavity 6 is low pressure. Under the action of the pressure difference, the high pressure pushes the leak-proof plug 9 to overcome the elastic force of the spring 12, and the leak-proof plug 9 moves toward the second flow cavity 6. At this time, the small blocking block 10 at the bottom of the leak-proof plug 9 blocks the second flow port 7 and seals the first flow cavity 2 once, and the large blocking block 11 at the top of the leak-proof plug 9 blocks the first flow port 3 and seals the first flow cavity 2 again. The double sealing structure has a good anti-leakage effect. The gauge joint has a leak-proof function, which can prevent liquid leakage from damaging the pressure gauge and polluting the air and endangering personal safety.

Claims

1. A meter joint with leak-proof function, It is characterized in that The invention comprises a gauge joint body (1), a first circulation cavity (2), a pressure gauge connecting pipe (5), a second circulation cavity (6) and a leak-proof plug (9); the first circulation cavity (2) is arranged inside the gauge joint body (1), and a second circulation port (7) is arranged inside the first circulation cavity (2); the pressure gauge connecting pipe (5) is arranged above the gauge joint body (1); the second circulation cavity (6) is arranged inside the pressure gauge connecting pipe (5), and the second circulation cavity (6) is connected to the first circulation cavity (2) through the first circulation port (3); the leak-proof plug (9) is arranged inside the first circulation cavity (2), and a small block (10) is fixed to the bottom end of the leak-proof plug (9), and a large block (11) is fixed to the top end of the leak-proof plug (9); and a spring (12) is sleeved on the outer wall of the leak-proof plug (9).

2. A leak-proof gauge connector according to claim 1, Features: The inner walls of the top and bottom of the meter joint body (1) are respectively provided with a first internal thread groove (4) and a second internal thread groove (8).

3. A leak-proof gauge connector according to claim 1, Features: The outer walls of the top end and the bottom end of the meter joint body (1) are respectively provided with a first external thread strip (13) and a second external thread strip (16).

4. A leak-proof gauge connector according to claim 1, Features: An upper sealing sleeve (14) is sleeved on the top end of the gauge joint body (1), the upper sealing sleeve (14) is threadedly connected to the gauge joint body (1) via a first external thread strip (13), and a first sealing ring (15) is adhered to the inner wall of the upper sealing sleeve (14).

5. The leak-proof gauge connector according to claim 1, Features: A lower sealing sleeve (17) is sleeved on the bottom end of the gauge joint body (1), the lower sealing sleeve (17) is threadedly connected to the gauge joint body (1) via a second external thread strip (16), and a second sealing ring (18) is adhered to the inner wall of the lower sealing sleeve (17).

6. A leak-proof gauge connector according to claim 1, Features: The pressure gauge connecting pipe (5) is threadedly connected to the gauge joint body (1) via a first internal thread groove (4).

7. The meter connector with leak-proof function according to claim 1, Features: The anti-leakage plug (9) is an I-shaped structure.

8. The meter connector with leak-proof function according to claim 1, Features: The small blocking block (10) and the large blocking block (11) are respectively tightly fitted with the second flow opening (7) and the first flow opening (3).