Quick high-pressure joint for detecting water pressure of gas cylinder

Abstract

The utility model relates to the technical field of gas cylinder detection, in particular to a gas cylinder water pressure detection quick high-pressure connector which comprises a mounting seat. The adjusting seat is arranged at the upper end of the mounting seat; the adjusting nut is screwed on the adjusting seat; the pull rod is inserted into the mounting seat and the adjusting seat; the first limiting head is connected with the upper end of the pull rod and is positioned at the upper end of the adjusting nut; the second limiting head is arranged at the lower end of the rubber gasket and connected with the lower end of the pull rod; corresponding and communicated inserting holes are formed in the mounting seat and the adjusting seat, the lower end of the pull rod sequentially penetrates through the adjusting seat, the mounting seat and the rubber gasket and is connected with the second limiting head, the outer diameter of the first limiting head is larger than the inner diameter of the adjusting nut, and the outer diameter of the second limiting head is larger than the inner diameter of the inserting holes in the mounting seat. The design is simple to operate, convenient to use and low in cost.

Description

Technical Field

[0001] The utility model relates to the technical field of gas cylinder detection, in particular to a quick high-pressure connector for gas cylinder water pressure detection. Background Art

[0002] Seamless steel and aluminum alloy gas cylinders are widely used for filling high-pressure air, oxygen, nitrogen, argon, hydrogen, carbon dioxide, and compressed natural gas, and are widely used in daily life and industry. During the production process, gas cylinders require water pressure testing. This involves injecting water into the cylinder to test the cylinder's quality using the water pressure. To improve testing efficiency, prior art publication No. CN 216978594 U, entitled "A Quick Connector for Hydrostatic Testing of Gas Cylinders," describes a method for rapidly sealing the cylinder mouth using a cylinder-driven mechanism that moves the central axis upward, deforming the rubber sleeve. However, this structure is complex, costly, heavy, and inconvenient to use. Summary of the Invention

[0003] In order to solve the technical problems of complex structure and high cost of existing quick connectors for gas cylinder water pressure testing, the utility model provides a quick high-pressure connector for gas cylinder water pressure testing, which is simple to operate, easy to use and low in cost.

[0004] The technical solution adopted by the utility model is to provide a quick high-pressure connector for water pressure detection of a gas cylinder, including a mounting seat, an adjustment seat arranged at the upper end of the mounting seat, an adjusting nut screwed on the adjusting seat, a pull rod inserted in the mounting seat and the adjusting seat, a first limit head connected to the upper end of the pull rod and located at the upper end of the adjusting nut, a rubber gasket arranged at the lower end of the mounting seat, and a second limit head arranged at the lower end of the rubber gasket and connected to the lower end of the pull rod; corresponding and connected jacks are provided on the mounting seat and the adjusting seat, the lower end of the pull rod passes through the adjusting seat, the mounting seat and the rubber gasket in sequence and is connected to the second limit head, the outer diameter of the first limit head is larger than the inner diameter of the adjusting nut, and the outer diameter of the second limit head is larger than the inner diameter of the jack on the mounting seat.

[0005] The pull rod is a tubular structure. The first limit head is provided with a first water hole communicating with the inner cavity of the pull rod. The second limit head is provided with a second water hole communicating with the inner cavity of the pull rod.

[0006] The input end of the first water hole is set on one side of the first limit head, and the output end is set at the lower end of the first limit head. The input end of the second water hole is set at the upper end of the second limit head, and the output end is set at the lower end of the second limit head.

[0007] The upper end and the lower end of the pull rod are both provided with external threads, and the output end of the first water hole and the input end of the second limit head are both provided with internal threads adapted to the pull rod.

[0008] The adjustment seat includes a mounting plate, a middle hole provided on the mounting plate, mounting holes provided on the mounting plate and arranged in a ring around the middle hole, and a threaded barrel provided in the middle hole. The threaded barrel is a cylindrical structure with an external thread. The lower end of the threaded barrel is fixed in the middle hole and communicated with the jack of the mounting seat. The upper end of the mounting seat is provided with a threaded hole corresponding to the mounting hole. Locking bolts are provided in the mounting hole and the threaded hole, and the adjusting nut is screwed on the threaded barrel.

[0009] The lower end of the mounting seat is provided with a connecting tube which is in communication with the jack and has an external thread, and the lower end of the pull rod passes through the connecting tube.

[0010] The mounting seat is in a cylindrical structure and has handles fixed on both sides.

[0011] A gasket is provided between the rubber gasket and the second limiting head.

[0012] The beneficial effect of this utility model is that it provides a quick high-pressure connector for gas cylinder water pressure testing. The operator manually rotates the adjusting nut and pulls the second limit head upward, squeezing the rubber gasket to deform. The rubber gasket expands outward and then abuts against the inner wall of the gas cylinder mouth, completing the seal. When it is necessary to remove the connector, the operator reverses the adjusting nut to restore the rubber gasket. This design only requires the operator to turn the adjusting nut to complete the disassembly and assembly of the connector. It is simple to operate, convenient and quick to use, and has a simple structure, easy production and assembly, no need for a separate driver, and low cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural diagram of the utility model;

[0014] Figure 2 It is an exploded view of the present utility model.

[0015] In the accompanying drawings, 1 is the mounting seat, 2 is the adjusting seat, 3 is the adjusting nut, 4 is the pull rod, 5 is the first limit head, 6 is the rubber washer, 7 is the second limit head, 8 is the first water hole, 9 is the second water hole, 10 is the mounting plate, 11 is the mounting hole, 12 is the threaded cylinder, 13 is the threaded hole, 14 is the locking bolt, 15 is the connecting cylinder, 16 is the handle, and 17 is the gasket. DETAILED DESCRIPTION

[0016] like Figure 1-2As shown, the utility model provides a quick high-pressure connector for water pressure detection of a gas cylinder, comprising a mounting seat 1, an adjusting seat 2 arranged at the upper end of the mounting seat 1, an adjusting nut 3 screwed on the adjusting seat 2, a pull rod 4 inserted into the mounting seat 1 and the adjusting seat 2, a first limit head 5 connected to the upper end of the pull rod 4 and located at the upper end of the adjusting nut 3, a rubber gasket 6 arranged at the lower end of the mounting seat 1, and a second limit head 7 arranged at the lower end of the rubber gasket 6 and connected to the lower end of the pull rod 4; corresponding and connected jacks are provided on the mounting seat 1 and the adjusting seat 2, the lower end of the pull rod 4 passes through the adjusting seat 2, the mounting seat 1 and the rubber gasket 6 in sequence and is connected to the second limit head 7, the outer diameter of the first limit head 5 is larger than the inner diameter of the adjusting nut 3, and the outer diameter of the second limit head 7 is larger than the inner diameter of the jack on the mounting seat 1.

[0017] When the cam 1 is in the air, the cam 1 is in the air, and the cam 1 is in the air, and the cam 1 is in the air, and the cam 1 is in the air, and the cam 1 is in the air, and the cam 1 is in the air, and the cam 1 is in the air, and the cam 1 is in the air, and the cam 1 is in the air, and the cam 1 is in the air, and the cam 1 is in the air, and the cam 1 is in the air, and the cam 1 is in the air, and the cam 1 is in the air This design only requires the operator to rotate the adjusting nut 3 to complete the disassembly and assembly of the joint. It is simple to operate, easy and quick to use, and has a simple structure, easy production and assembly, no additional drive is required, and the cost is low.

[0018] like Figure 1-2 As shown, the pull rod 4 is a tubular structure, the first limit head 5 is provided with a first water hole 8 communicating with the inner cavity of the pull rod 4, and the second limit head 7 is provided with a second water hole 9 communicating with the inner cavity of the pull rod 4.

[0019] After the connector is installed on the mouth of the gas cylinder, it is used in conjunction with a water injection pipe with a valve. Specifically, the output end of the water injection pipe is connected to the input end of the first water hole 8. The connection method is not limited. Water is injected into the water injection pipe and passes through the first water hole 8, the pull rod 4 and the second water hole 9 in turn into the gas cylinder. After reaching the required water pressure, the valve on the water injection pipe can be closed. It is simple to operate and easy to use.

[0020] like Figure 1-2As shown, the input end of the first water hole 8 is set on one side of the first limit head 5, and the output end is set at the lower end of the first limit head 5; the input end of the second water hole 9 is set at the upper end of the second limit head 7, and the output end is set at the lower end of the second limit head 7.

[0021] The positions of the first water through hole 8 and the second water through hole 9 are limited, making connection and use more convenient.

[0022] like Figure 1-2 As shown, the upper and lower ends of the pull rod 4 are both provided with external threads, and the output end of the first water hole 8 and the input end of the second limit head 7 are both provided with internal threads adapted to the pull rod 4.

[0023] The pull rod 4 and the second limit head 7 are connected by internal and external threads, which further improves the convenience of disassembly and assembly of the joint and makes production and processing more convenient.

[0024] like Figure 1-2 As shown, the adjustment seat 2 includes a mounting plate 10, a middle hole provided on the mounting plate 10, a mounting hole 11 provided on the mounting plate 10 and arranged in a ring around the middle hole, and a threaded barrel 12 provided in the middle hole. The threaded barrel 12 is a cylindrical structure with an external thread. The lower end of the threaded barrel 12 is fixed in the middle hole and communicates with the jack of the mounting seat 1. The upper end of the mounting seat 1 is provided with a threaded hole 13 corresponding to the mounting hole 11. Locking bolts 14 are provided in the mounting hole 11 and the threaded hole 13. The adjusting nut 3 is screwed on the threaded barrel 12.

[0025] The mounting plate 10 and the threaded barrel 12 form a T-shaped structure. The threaded barrel 12 is provided with an external thread for easy processing, and the adjusting nut 3 is screwed onto the threaded barrel 12, which is convenient for disassembly and use. The mounting plate 10 is bolted to the mounting base 1 through the mounting hole 11 and the threaded hole 13 and with the help of a locking bolt 14, making disassembly and assembly more convenient.

[0026] like Figure 1-2 As shown, a connecting tube 15 communicating with the insertion hole and having an external thread is provided at the lower end of the mounting seat 1 , and the lower end of the pull rod 4 passes through the connecting tube 15 .

[0027] The mouth of the gas cylinder is generally provided with an internal thread for installing the original gas cylinder joint. The detection joint of this design is designed by adding a connecting tube 15 with an external thread that is adapted to the internal thread of the gas cylinder mouth to the mounting base 1. The rubber gasket 6 is located at the lower end of the connecting tube 15, which can improve the connection strength and precise positioning of the joint of this design and the mouth of the gas cylinder. When installing, first tighten the joint into the mouth of the gas cylinder, and then rotate the adjusting bolt 3 to expand the rubber gasket 6 for sealing. When removing, rotate the adjusting bolt 3 to restore the rubber gasket 6, and then rotate the joint to remove it from the mouth of the gas cylinder. It is easy to use and simple to operate.

[0028] like Figure 1-2 As shown, the mounting base 1 is a cylindrical structure with handles 16 fixed on both sides.

[0029] The handle 16 is convenient for the operator to hold the connector and connect it to the mouth of the gas cylinder.

[0030] like Figure 1-2 As shown, a gasket 17 is provided between the rubber gasket 6 and the second limiting head 7 .

[0031] The gasket 17 can prevent the second limiting head 7 from wearing the rubber gasket 6 during frequent use of the joint.

Claims

1. A quick high-pressure connector for detecting water pressure in a gas cylinder, comprising a mounting seat (1), characterized in that: The invention also includes an adjusting seat (2) arranged at the upper end of the mounting seat (1), an adjusting nut (3) screwed on the adjusting seat (2), a pull rod (4) inserted into the mounting seat (1) and the adjusting seat (2), a first limit head (5) connected to the upper end of the pull rod (4) and located at the upper end of the adjusting nut (3), a rubber washer (6) arranged at the lower end of the mounting seat (1), and a second limit head (7) arranged at the lower end of the rubber washer (6) and connected to the lower end of the pull rod (4); the mounting seat (1) and the adjusting seat (2) are both provided with corresponding and connected jacks, the lower end of the pull rod (4) passes through the adjusting seat (2), the mounting seat (1) and the rubber washer (6) in sequence and is connected to the second limit head (7), the outer diameter of the first limit head (5) is larger than the inner diameter of the adjusting nut (3), and the outer diameter of the second limit head (7) is larger than the inner diameter of the jack on the mounting seat (1).

2. A quick high-pressure connector for detecting water pressure of a gas cylinder according to claim 1, characterized in that: The pull rod (4) is a tubular structure, the first limiting head (5) is provided with a first water hole (8) communicating with the inner cavity of the pull rod (4), and the second limiting head (7) is provided with a second water hole (9) communicating with the inner cavity of the pull rod (4).

3. A quick high-pressure connector for detecting water pressure of a gas cylinder according to claim 2, characterized in that: The input end of the first water passage (8) is arranged on one side of the first limit head (5), and the output end is arranged at the lower end of the first limit head (5); the input end of the second water passage (9) is arranged at the upper end of the second limit head (7), and the output end is arranged at the lower end of the second limit head (7).

4. A quick high-pressure connector for detecting water pressure of a gas cylinder according to claim 2, characterized in that: The upper and lower ends of the pull rod (4) are both provided with external threads, and the output end of the first water hole (8) and the input end of the second limit head (7) are both provided with internal threads adapted to the pull rod (4).

5. The quick high-pressure connector for detecting water pressure of a gas cylinder according to claim 1, characterized in that: The adjustment seat (2) comprises a mounting plate (10), a middle hole provided on the mounting plate (10), a mounting hole (11) provided on the mounting plate (10) and annularly arranged around the middle hole, and a threaded barrel (12) provided in the middle hole, wherein the threaded barrel (12) is a cylindrical structure provided with an external thread, the lower end of the threaded barrel (12) is fixed in the middle hole and communicates with the jack of the mounting seat (1), the upper end of the mounting seat (1) is provided with a threaded hole (13) corresponding to the mounting hole (11), a locking bolt (14) is provided in the mounting hole (11) and the threaded hole (13), and the adjustment nut (3) is screwed onto the threaded barrel (12).

6. A quick high-pressure connector for detecting water pressure of a gas cylinder according to claim 1, characterized in that: The lower end of the mounting seat (1) is provided with a connecting tube (15) which is in communication with the insertion hole and has an external thread, and the lower end of the pull rod (4) passes through the connecting tube (15).

7. A quick high-pressure connector for detecting water pressure of a gas cylinder according to claim 1, characterized in that: The mounting seat (1) has a cylindrical structure and handles (16) are fixed on both sides.

8. The quick high-pressure connector for detecting water pressure of a gas cylinder according to claim 1, characterized in that: A gasket (17) is provided between the rubber gasket (6) and the second limiting head (7).

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