Tank container pressure limiting device

Abstract

The utility model relates to the technical field of tank containers, and discloses a tank container pressure limiting device which comprises a tank container body, the left end of the tank container body is communicated with a connecting pipe, the inner wall of the connecting pipe is communicated with an exhaust pipe, and the end, away from the connecting pipe, of the exhaust pipe is fixedly connected with an electromagnetic valve. Air pressure enters the fixing sleeve through the connecting pipe, the sliding plate slides downwards under the action of the air pressure, meanwhile, the reset spring is compressed, the fixing rod is driven to move downwards, the push plate moves downwards, the push plate makes contact with the automatic reset switch, the automatic reset switch is pressed down, the circuit is connected, and the electromagnetic valve is opened. And air pressure is exhausted outwards through the exhaust pipe, the air pressure in the tank container body is reduced, manual intervention is not needed, the safety and convenience in use are improved, the tank container body is prevented from being damaged due to too high pressure in the tank container body, and the service life of equipment is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of tank container technology, and in particular to a pressure limiting device for tank containers. Background Technology

[0002] Tank containers, also known as international standard tanks, are specialized transport containers primarily used for storing and transporting dangerous goods such as liquids and gases, as well as other high-risk items. Tank containers consist of two parts: an inner liner typically made of corrosion-resistant stainless steel, and an outer sturdy frame whose dimensions fully conform to the dimensions of international standard containers, making them suitable for road, rail, and sea transport.

[0003] Currently, most pressure relief devices for tank containers require manual operation to release pressure inside the container, making automatic control difficult. Due to the need for manual intervention, operators may fail to handle high-pressure situations in a timely manner due to negligence, fatigue, or other reasons, increasing the risk of accidents and reducing safety during use. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a pressure limiting device for tank containers.

[0005] This utility model is achieved using the following technical solution: a pressure limiting device for a tank container, comprising a tank container body, a connecting pipe connected to the left end of the tank container body, an exhaust pipe connected to the inner wall of the connecting pipe, a solenoid valve fixedly connected to the end of the exhaust pipe away from the connecting pipe, a fixed sleeve fixedly connected to the end of the connecting pipe away from the tank container body, a sliding plate slidably connected to the inner wall of the fixed sleeve, a fixed rod fixedly connected to the bottom of the sliding plate, a return spring sleeved on the surface of the fixed rod, a limit plate fixedly connected to the inner wall of the fixed sleeve, a push plate fixedly connected to the end of the fixed rod away from the sliding plate, an installation frame fixedly connected to the bottom of the fixed sleeve, and an automatic reset switch fixedly connected to the bottom of the inner wall of the installation frame.

[0006] Through the above technical solution, air pressure enters the interior of the fixed sleeve through the connecting pipe. The sliding plate slides downward under the action of air pressure, while compressing the return spring, which drives the fixed rod to move downward, causing the push plate to move downward. The push plate contacts the automatic reset switch, which is pressed, the circuit is connected, the solenoid valve opens, and the air pressure is discharged outward through the exhaust pipe, reducing the air pressure inside the tank container body. No manual intervention is required, which improves the safety and convenience of use, prevents damage caused by excessive internal pressure of the tank container body, and extends the service life of the equipment.

[0007] As a further improvement to the above solution, the fixed sleeve and the connecting pipe are interconnected, and the top of the return spring contacts the bottom of the sliding plate.

[0008] As a further improvement to the above solution, the end of the reset spring away from the sliding plate is fixedly connected to the top of the limiting plate, and one end of the fixing rod extends into the interior of the mounting frame.

[0009] The above technical solution uses a reset spring to elastically reset and push the sliding plate upward, which in turn moves the fixed rod upward, causing the push plate to separate from the automatic reset switch. The automatic reset switch then automatically resets, the circuit is disconnected, and the solenoid valve closes.

[0010] As a further improvement to the above solution, the right end of the mounting frame is fixedly connected to the left end of the tank container body, and the inner wall of the limiting plate is slidably connected to the surface of the fixing rod.

[0011] The above technical solution uses a limiting plate to limit the movement of the fixed rod, ensuring that the fixed rod moves in a straight line when it moves downwards, and accurately makes the push plate contact the automatic reset switch.

[0012] As a further improvement to the above solution, the push plate is located at the upper end of the automatic reset switch, and a protective pad is fixedly connected to the bottom of the push plate.

[0013] The above technical solution reduces the hard contact between the push plate and the automatic reset switch by using protective pads, thereby reducing wear on the automatic reset switch.

[0014] As a further improvement to the above solution, a baffle is provided at the left end of the mounting frame, and an observation window is provided on the inner wall of the baffle.

[0015] The above technical solution uses a baffle to shield and protect the automatic reset switch inside the mounting frame, thereby improving the service life of the automatic reset switch.

[0016] As a further improvement to the above solution, the baffle is internally threaded with a threaded rod, which penetrates the baffle and is threadedly connected to the inner wall of the mounting frame.

[0017] By using the above technical solution, the automatic reset switch inside the mounting frame can be inspected or maintained by disassembling the threaded rod and removing the baffle, thus improving the convenience of subsequent maintenance.

[0018] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0019] This invention incorporates a connecting pipe, an exhaust pipe, a solenoid valve, a fixed sleeve, a sliding plate, a fixed rod, a return spring, a limit plate, a push plate, and an automatic reset switch. Specifically, air pressure enters the fixed sleeve through the connecting pipe. The sliding plate slides downwards under the pressure of the air, simultaneously compressing the return spring and causing the fixed rod to move downwards. This causes the push plate to move downwards, contacting the automatic reset switch. The automatic reset switch is then pressed, activating the circuit and opening the solenoid valve. The air pressure is then released through the exhaust pipe, reducing the internal pressure of the tank container without manual intervention. This improves safety and convenience during use, prevents damage from excessive internal pressure, and extends the equipment's lifespan. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a schematic cross-sectional view of the present invention.

[0022] Figure 3 This utility model Figure 2 Enlarged structural diagram of section A in the middle;

[0023] Figure 4 This is a schematic diagram of the installation frame connection structure of this utility model;

[0024] Figure 5 This is a schematic diagram of the exploded structure of this utility model.

[0025] Explanation of key symbols:

[0026] 1. Tank container body; 2. Connecting pipe; 3. Exhaust pipe; 4. Solenoid valve; 5. Fixing sleeve; 6. Sliding plate; 7. Fixing rod; 8. Return spring; 9. Limiting plate; 10. Push plate; 11. Mounting frame; 12. Automatic reset switch; 13. Baffle; 14. Observation window; 15. Threaded rod; 16. Protective pad. Detailed Implementation

[0027] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0028] Example:

[0029] Please combine Figure 1-5This embodiment of a tank container pressure limiting device includes a tank container body 1. A connecting pipe 2 is connected to the left end of the tank container body 1. An exhaust pipe 3 is connected to the inner wall of the connecting pipe 2. A solenoid valve 4 is fixedly connected to the end of the exhaust pipe 3 away from the connecting pipe 2. A fixing sleeve 5 is fixedly connected to the end of the connecting pipe 2 away from the tank container body 1. A sliding plate 6 is slidably connected to the inner wall of the fixing sleeve 5. A fixing rod 7 is fixedly connected to the bottom of the sliding plate 6. A return spring 8 is sleeved on the surface of the fixing rod 7. A limit plate 9 is fixedly connected to the inner wall of the fixing sleeve 5. A push plate 10 is fixedly connected to the end of the fixing rod 7 away from the sliding plate 6. A safety device is fixedly connected to the bottom of the fixing sleeve 5. The frame 11 is fixedly connected to the bottom of its inner wall with an automatic reset switch 12. Air pressure enters the interior of the fixed sleeve 5 through the connecting pipe 2. The sliding plate 6 slides downward under the action of air pressure, while compressing the reset spring 8, which drives the fixed rod 7 to move downward, causing the push plate 10 to move downward. The push plate 10 contacts the automatic reset switch 12, and the automatic reset switch 12 is pressed, the circuit is connected, the solenoid valve 4 opens, and the air pressure is discharged outward through the exhaust pipe 3, reducing the air pressure inside the tank container body 1. No manual intervention is required, which improves the safety and convenience of use, prevents damage caused by excessive internal pressure of the tank container body 1, and extends the service life of the equipment.

[0030] The fixed sleeve 5 is connected to the connecting pipe 2, and the top of the return spring 8 is in contact with the bottom of the sliding plate 6.

[0031] The end of the reset spring 8 away from the sliding plate 6 is fixedly connected to the top of the limit plate 9. One end of the fixing rod 7 extends into the interior of the mounting frame 11. When the pressure returns to normal, the reset spring 8 elastically resets and pushes the sliding plate 6 upward, which in turn moves the fixing rod 7 upward, so that the push plate 10 does not contact the automatic reset switch 12. The automatic reset switch 12 automatically resets, the circuit is disconnected, and the solenoid valve 4 is closed at the same time.

[0032] The right end of the mounting frame 11 is fixedly connected to the left end of the tank container body 1, and the inner wall of the limiting plate 9 is slidably connected to the surface of the fixing rod 7.

[0033] The push plate 10 is located at the upper end of the automatic reset switch 12. A protective pad 16 is fixedly connected to the bottom of the push plate 10. The protective pad 16 at the bottom of the push plate 10 can prevent hard contact between the push plate 10 and the automatic reset switch 12, reduce the wear of the automatic reset switch 12, and extend the service life of the automatic reset switch 12.

[0034] A baffle 13 is provided on the left end of the mounting frame 11, and an observation window 14 is provided on the inner wall of the baffle 13.

[0035] The baffle 13 has a threaded rod 15 inside. The threaded rod 15 passes through the baffle 13 and is threaded to the inner wall of the mounting frame 11. By disassembling the threaded rod 15, the baffle 13 can be removed, and the automatic reset switch 12 can be inspected and maintained.

[0036] The implementation principle of the pressure limiting device for a tank container in this embodiment is as follows: When the air pressure inside the tank container body 1 increases during use, the air pressure enters the interior of the fixed sleeve 5 through the connecting pipe 2. The sliding plate 6 slides downward under the action of the air pressure, simultaneously compressing the reset spring 8, which drives the fixed rod 7 to move downward, causing the push plate 10 to move downward. The push plate 10 contacts the automatic reset switch 12, the automatic reset switch 12 is pressed, the circuit is connected, the solenoid valve 4 opens, and the air pressure is discharged outward through the exhaust pipe 3, reducing the air pressure inside the tank container body 1. No manual intervention is required, improving the safety and convenience during use and preventing the tank container from overheating. Excessive internal pressure in body 1 can damage the device and extend its service life. When the pressure returns to normal, the reset spring 8 elastically resets and pushes the sliding plate 6 upward, which in turn moves the fixed rod 7 upward, preventing the push plate 10 from contacting the automatic reset switch 12. The automatic reset switch 12 then automatically resets, disconnecting the circuit. Simultaneously, the solenoid valve 4 closes. The protective pad 16 at the bottom of the push plate 10 prevents hard contact between the push plate 10 and the automatic reset switch 12, reducing wear on the automatic reset switch 12 and extending its service life. By disassembling the threaded rod 15 and removing the baffle 13, the automatic reset switch 12 can be inspected and maintained.

[0037] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. A pressure limiting device for a tank container, characterized in that The container includes a tank container body (1), with a connecting pipe (2) connected to the left end of the tank container body (1). An exhaust pipe (3) is connected to the inner wall of the connecting pipe (2). A solenoid valve (4) is fixedly connected to the end of the exhaust pipe (3) away from the connecting pipe (2). A fixing sleeve (5) is fixedly connected to the end of the connecting pipe (2) away from the tank container body (1). A sliding plate (6) is slidably connected to the inner wall of the fixing sleeve (5). A fixing rod (7) is fixedly connected to the bottom of the sliding plate (6). A reset spring (8) is sleeved on the surface of the fixing rod (7). A limit plate (9) is fixedly connected to the inner wall of the fixing sleeve (5). A push plate (10) is fixedly connected to the end of the fixing rod (7) away from the sliding plate (6). An installation frame (11) is fixedly connected to the bottom of the fixing sleeve (5). An automatic reset switch (12) is fixedly connected to the bottom of the inner wall of the installation frame (11).

2. A pressure limiting device for a tank container as claimed in claim 1, characterized in that The fixed sleeve (5) is connected to the connecting pipe (2), and the top of the reset spring (8) is in contact with the bottom of the sliding plate (6).

3. A pressure limiting device for a tank container as claimed in claim 1, characterized in that The end of the reset spring (8) away from the sliding plate (6) is fixedly connected to the top of the limiting plate (9), and one end of the fixing rod (7) extends into the interior of the mounting frame (11).

4. A pressure limiting device for a tank container as claimed in claim 3, characterized in that: The right end of the mounting frame (11) is fixedly connected to the left end of the tank container body (1), and the inner wall of the limiting plate (9) is slidably connected to the surface of the fixing rod (7).

5. A pressure limiting device for a tank container as claimed in claim 1, characterized in that The push plate (10) is located at the upper end of the automatic reset switch (12), and a protective pad (16) is fixedly connected to the bottom of the push plate (10).

6. A pressure limiting device for a tank container as claimed in claim 4, characterized in that: A baffle (13) is provided at the left end of the mounting frame (11), and an observation window (14) is provided on the inner wall of the baffle (13).

7. A pressure limiting device for a tank container as claimed in claim 6, characterized in that: The baffle (13) is internally threaded with a threaded rod (15), which passes through the baffle (13) and is threadedly connected to the inner wall of the mounting frame (11).

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