Container leak detection device

Abstract

The utility model relates to a container leak hunting device, which comprises a pressure supply module, a hollow shaft cylinder, a connecting support and a sealing module, the pressure supply module, the hollow shaft cylinder and the connecting support are fixedly connected in sequence, the connecting support and the sealing module are movably connected, an air inlet is arranged at the tail end of the pressure supply module, and an air outlet is arranged at the tail end of the sealing module. An air outlet is formed in the front end of the sealing module, a middle through hole is formed between the air inlet and the air outlet, the pressure supply module, the hollow shaft air cylinder, the connecting support and the sealing module are sequentially communicated through the middle through hole, and an air pressure testing meter used for detecting leakage is arranged on the pressure supply module. High-pressure gas for testing passes through the gas inlet hole, the middle through hole and the gas outlet hole and then enters the container, and the gas pressure testing meter monitors the gas pressure change in the middle through hole to judge whether the container leaks or not. According to the utility model, the sealing module which is movably connected is arranged, eccentric load can be borne, the testing angle can be automatically adjusted, the air leakage risk during leakage detection is reduced, and the leakage detection stability is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of container leakage detection, and particularly relates to a container leakage detection device. Background Art

[0002] Existing container leak detection devices such as Figure 1 As shown, the device comprises a leak detection cylinder 1′, a connecting bracket 2′, and a sealing module 3′. The sealing module 3′ is sealed with the opening of the container A′ to be tested for leaks. The sealing module 3′ is provided with an air supply interface 31′ and a leak detection interface 32′, which are connected to the container A′. The air supply interface 31′ is connected to an air supply pipe that supplies air to the container, while the leak detection interface 32′ is connected to a leak detection air pipe that detects whether the container A′ is leaking. During leak detection, the air supply pipe and the leak detection air pipe move with the sealing module 3′. The sealing module 3′ is subjected to unilateral force and is prone to eccentric loads. Furthermore, because the air supply pipe and the leak detection air pipe move frequently, leakage at the interface is likely to occur, reducing the stability of the leak detection.

[0003] The existing technology needs to be further improved. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a container leakage detection device that can withstand eccentric loads, automatically adjust the test angle, reduce the risk of gas leakage during leak detection, and improve the stability of leak detection.

[0005] The utility model is implemented as follows: a container leakage detection device is provided, comprising a pressure supply module, a hollow shaft cylinder, a connecting bracket and a sealing module; the pressure supply module, the hollow shaft cylinder and the connecting bracket are set to be fixedly connected in sequence, and a movable connection is set between the connecting bracket and the sealing module; an air inlet is set at the tail end of the pressure supply module, an air outlet is set at the front end of the sealing module, and a through hole is set between the air inlet and the air outlet; the pressure supply module, the hollow shaft cylinder, the connecting bracket and the sealing module are respectively connected to each other in sequence through the through hole; an air pressure test gauge for detecting leakage is set on the pressure supply module, a test end of the air pressure test gauge is connected to the through hole located in the pressure supply module through the test hole, the front end face of the sealing module is sealed and connected to the open end face of the container to be tested for leakage, and the air outlet is connected to the inner cavity of the container to be tested for leakage.

[0006] Furthermore, the sealing module includes a ball head piston rod, an upper base, a lower base and a container sealing gasket. An axial hole is provided at the axis of the ball head piston rod, which is connected to the middle through holes located in the connecting bracket and the sealing module respectively. The container sealing gasket is installed at the end of the lower base. A lower ball socket is provided on the lower base, and an upper ball socket corresponding to the lower ball socket is provided on the upper base. The ball head of the ball head piston rod is movably matched with the upper ball socket and the lower ball socket respectively. A section of the middle through hole located in the connecting bracket serves as a piston sliding hole. The other end of the ball head piston rod slides along the piston sliding hole. The connecting bracket is movably connected to the upper base through a connecting bolt. A compression spring is sleeved on the ball head piston rod, and the compression spring is located between the connecting bracket and the upper base.

[0007] Furthermore, a ball head sealing ring is provided between the ball head piston rod and the upper base and the lower base, and the ball head sealing ring is sleeved on the ball head of the ball head piston rod.

[0008] Furthermore, a piston sealing ring is provided between the ball head piston rod and the piston sliding hole.

[0009] Furthermore, a dust cover is sleeved on the ball head piston rod, and the dust cover is located on the top of the upper base.

[0010] Furthermore, a cylinder shaft is arranged in the hollow shaft cylinder, and the through hole of the hollow shaft cylinder is arranged at the axis of the cylinder shaft. One end of the cylinder shaft extends into the through hole of the pressure supply module, and the other end extends to the outside of the front end head of the hollow shaft cylinder and is connected to the end of the connecting bracket through a threaded pair.

[0011] Furthermore, a locking nut is provided at the connection between the cylinder shaft and the connecting bracket.

[0012] Furthermore, a bracket sealing ring is provided between the end surface of the cylinder shaft and the connecting bracket.

[0013] Furthermore, an end face sealing ring is provided between the pressure supply module and the hollow shaft cylinder.

[0014] Compared with the prior art, the container leak detection device of the present invention includes a pressure supply module, a hollow shaft cylinder, a connecting bracket and a sealing module. The pressure supply module, the hollow shaft cylinder and the connecting bracket are set to be fixedly connected in sequence, and a movable connection is set between the connecting bracket and the sealing module. An air inlet is set at the tail end of the pressure supply module, and an air outlet is set at the front end of the sealing module. A through hole is set between the air inlet and the air outlet. The pressure supply module, the hollow shaft cylinder, the connecting bracket and the sealing module are respectively connected to each other through the through hole in sequence. An air pressure test gauge for detecting leaks is set on the pressure supply module. The test end of the air pressure test gauge is connected with the through hole located in the pressure supply module through the test hole. The front end face of the sealing module is sealed and connected to the open end face of the container to be tested for leaks. The air outlet is connected to the inner cavity of the container to be tested for leaks. The high-pressure gas used for testing enters the container after passing through the air inlet, the through hole and the air outlet. The air pressure test gauge monitors the air pressure changes in the through hole to determine whether the container is leaking. The utility model is provided with a movably connected sealing module, which can withstand eccentric loads, automatically adjust the test angle, reduce the risk of air leakage during leak detection, and improve the stability of leak detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A three-dimensional schematic diagram of a container leak detection device in the prior art in use;

[0016] Figure 2 This is a three-dimensional schematic diagram of a preferred embodiment of the container leakage detection device of the present invention in use;

[0017] Figure 3 for Figure 1 A three-dimensional schematic diagram of a container leak detection device;

[0018] Figure 4 for Figure 3 Schematic cross-section of the middle MM;

[0019] Figure 5 for Figure 3 A three-dimensional schematic diagram of the assembly state of the connecting bracket and the sealing module;

[0020] Figure 6 for Figure 5 Schematic diagram of the decomposition. DETAILED DESCRIPTION

[0021] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0022] Please also refer to Figures 2 to 6As shown, a preferred embodiment of the container leakage detection device of the present invention includes a pressure supply module 1, a hollow shaft cylinder 2, a connecting bracket 3 and a sealing module 4. The pressure supply module 1, the hollow shaft cylinder 2 and the connecting bracket 3 are set to be fixedly connected in sequence, and a movable connection is set between the connecting bracket 3 and the sealing module 4.

[0023] An air inlet 101 is provided at the tail end of the pressure supply module 1, and an air outlet 41 is provided at the front end of the sealing module 4. A through hole 5 is provided between the air inlet 101 and the air outlet 41, and the pressure supply module 1, the hollow shaft cylinder 2, the connecting bracket 3 and the sealing module 4 are respectively connected to each other in sequence through the through hole 5. An air pressure test gauge 6 for detecting leakage is provided on the pressure supply module 1, and the test end of the air pressure test gauge 6 is connected to the through hole 5 located in the pressure supply module 1 through the test hole 102. The front end face of the sealing module 4 is sealedly connected to the open end face of the container A to be tested for leakage, and the air outlet 41 is connected to the inner cavity of the container A to be tested for leakage. The high-pressure gas used for testing enters the container A through the air inlet 11, the through hole 5 and the air outlet 41, and the air pressure test gauge 6 monitors the air pressure changes in the through hole 5 to determine whether the container A is leaking.

[0024] The high-pressure gas used for leak detection enters the container leak detection device through the air inlet 101 arranged at the tail end of the pressure supply module 1. The air pressure test gauge 6 is arranged on the pressure supply module 1. The sealing module 4 does not have an interface or an external air pipe as in the prior art, so that the sealing module 4 of the present application does not bear an eccentric load, thereby improving its stability during leak detection.

[0025] Because the connecting bracket 3 is movably connected to the sealing module 4, when the container leak detection device is performing leak detection on the container A, the container leak detection device and the container A to be leak detected are no longer rigidly connected. When the sealing module 4 is subjected to an eccentric load, the position is adjusted along the direction of the eccentric load, thereby reducing the risk of air leakage at the sealing contact surface between the sealing module 4 and the container A during leak detection and improving the stability of leak detection.

[0026] The sealing module 4 includes a ball piston rod 42, an upper base 43, a lower base 44 and a container sealing gasket 45. An axial hole 46 is provided at the axis of the ball piston rod 42 to communicate with the middle through hole 5 located on the connecting bracket 3 and the sealing module 4 respectively. The container sealing gasket 45 is installed at the end of the lower base 44. A lower ball socket 47 is provided on the lower base 44, and an upper ball socket 48 corresponding to the lower ball socket 47 is provided on the upper base 43. The ball head of the ball piston rod 42 is movably matched with the upper ball socket 48 and the lower ball socket 47 respectively. A section of the middle through hole 5 located in the connecting bracket 3 serves as a piston slide hole 31, and the other end of the ball piston rod 42 slides along the piston slide hole 31. The connecting bracket 3 is movably connected to the upper base 43 by a connecting bolt 7. In this embodiment, three connecting bolts 7 are provided.

[0027] A compression spring 8 is sleeved onto the ball-end piston rod 42 and positioned between the connecting bracket 3 and the upper base 43. The upper base 43 and the lower base 44 are securely connected via base bolts 49. The compression spring 8 not only acts as a pressure buffer but also forces the sealing module 4 to return to its initial position after the container leak detection device completes leak detection of container A. In this embodiment, three base bolts 49 are provided.

[0028] A ball head sealing ring 10 is provided between the ball head piston rod 42 and the upper base 43 and the lower base 44. The ball head sealing ring 10 is sleeved on the ball head of the ball head piston rod 42. The ball head sealing ring 10 is provided so that the ball head piston rod 42 is sealedly connected to the upper base 43 and the lower base 44 respectively.

[0029] A piston sealing ring 9 is provided between the ball piston rod 42 and the piston sliding hole 31. The piston sealing ring 9 is provided so that the sealing module 4 and the connecting bracket 3 are sealed to each other.

[0030] In the present invention, the sealing module 4 is provided with a ball head piston rod 42 and a ball head sealing ring 10. At the same time, the connecting bracket 3 is movably connected to the upper base 43 through the connecting bolt 7, so that the ball head of the ball head piston rod 42 can be rotated at any angle at the upper ball socket 48 and the lower ball socket 47, and the rotation angle is less than 5°. When the ball head piston rod 42 is subjected to an eccentric load, it automatically deflects and adjusts the angle, thereby improving the stability of the sealing module 4 during leak detection.

[0031] A dust cover 11 is sleeved on the ball piston rod 42 . The dust cover 11 is located on the top of the upper base 43 to prevent foreign matter from entering the upper base 43 of the sealing module 4 and affecting the rotation of the ball piston rod 42 .

[0032] A cylinder shaft 21 is disposed within the hollow shaft cylinder 2, and the through hole 5 of the hollow shaft cylinder 2 is disposed at the axis of the cylinder shaft 21. One end of the cylinder shaft 21 extends into the through hole 5 of the pressure supply module 1, and the other end extends outside the front end of the hollow shaft cylinder and is connected to the end of the connecting bracket 3 via a threaded pair 12.

[0033] A locking nut 14 is provided at the connection between the cylinder shaft 21 and the connecting bracket 3. The locking nut 14 locks the thread pair 12.

[0034] A first gas inlet 22 and a second gas inlet 23 are respectively provided on the hollow shaft cylinder 2. External high-pressure gas drives the cylinder shaft 21 to move up and down, thereby driving the connecting bracket 3 and the sealing module 4 to move up and down, realizing the leak detection process of the container A to be leaked.

[0035] A bracket sealing ring 13 is provided between the end surface of the cylinder shaft 21 and the connecting bracket 3 , so that the hollow shaft cylinder 2 and the connecting bracket 3 are sealed and connected.

[0036] An end face sealing ring 15 is provided between the pressure supply module 1 and the hollow shaft cylinder 2. The end face sealing ring 15 is provided so that the pressure supply module 1 and the hollow shaft cylinder 2 are sealed to each other.

[0037] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A container leak detection device, characterized in that: It includes a pressure supply module, a hollow shaft cylinder, a connecting bracket and a sealing module. The pressure supply module, the hollow shaft cylinder and the connecting bracket are set to be fixedly connected in sequence, and a movable connection is set between the connecting bracket and the sealing module. An air inlet is set at the tail end of the pressure supply module, an air outlet is set at the front end of the sealing module, and a through hole is set between the air inlet and the air outlet. The pressure supply module, the hollow shaft cylinder, the connecting bracket and the sealing module are respectively connected to each other in sequence through the through hole. An air pressure test gauge for detecting leakage is set on the pressure supply module, and the test end of the air pressure test gauge is connected to the through hole in the pressure supply module through the test hole. The front end face of the sealing module is sealed and connected to the open end face of the container to be tested for leakage, and the air outlet is connected to the inner cavity of the container to be tested for leakage.

2. The container leakage detection device according to claim 1, characterized in that: The sealing module includes a ball head piston rod, an upper base, a lower base and a container sealing gasket. An axial hole is arranged at the axis of the ball head piston rod, which is connected with the middle through holes respectively located on the connecting bracket and the sealing module. The container sealing gasket is installed at the end of the lower base. A lower ball socket is arranged on the lower base. An upper ball socket corresponding to the lower ball socket is arranged on the upper base. The ball head of the ball head piston rod is movably matched with the upper ball socket and the lower ball socket respectively. A section of the middle through hole located in the connecting bracket is used as a piston sliding hole. The other end of the ball head piston rod slides along the piston sliding hole. The connecting bracket is movably connected to the upper base through a connecting bolt. A compression spring is sleeved on the ball head piston rod. The compression spring is located between the connecting bracket and the upper base.

3. The container leakage detection device according to claim 2, characterized in that: A ball head sealing ring is arranged between the ball head piston rod and the upper base and the lower base, and the ball head sealing ring is sleeved on the ball head of the ball head piston rod.

4. The container leakage detection device according to claim 2, characterized in that: A piston sealing ring is arranged between the ball head piston rod and the piston sliding hole.

5. The container leakage detection device according to claim 2, characterized in that: A dust cover is also sleeved on the ball head piston rod, and the dust cover is located on the top of the upper base.

6. The container leakage detection device according to claim 1, characterized in that: A cylinder shaft is arranged in the hollow shaft cylinder, and a through hole in the hollow shaft cylinder is arranged at the axis of the cylinder shaft. One end of the cylinder shaft extends into the through hole of the pressure supply module, and the other end extends to the front end of the hollow shaft cylinder and is connected to the end of the connecting bracket through a threaded pair.

7. The container leakage detection device according to claim 6, characterized in that: A locking nut is arranged at the connection between the cylinder shaft and the connecting bracket.

8. The container leakage detection device according to claim 6, characterized in that: A bracket sealing ring is arranged between the end surface of the cylinder shaft and the connecting bracket.

9. The container leakage detection device according to claim 1, characterized in that: An end face sealing ring is arranged between the pressure supply module and the hollow shaft cylinder.

Images