Positive and negative pressure dual-purpose thin safety valve for IBC tank

Abstract

The utility model discloses a positive and negative pressure dual-purpose thin safety valve for an IBC tank, which belongs to the field of safety valves and comprises a safety valve body and a bottom ring, the bottom of the safety valve body is fixedly connected with a first disc, the bottom of the first disc is in threaded connection with a second disc through a bolt, and the bottom of the second disc is fixedly connected to the bottom of the bottom ring. The inner side of the bottom ring fixedly communicates with a connecting pipe, the top of the connecting pipe movably abuts against a third block, a sliding groove is formed in the inner side of the third block, two abutting blocks are slidably connected to the inner side of the sliding groove, small springs are fixedly connected to one sides of the two abutting blocks, and the other ends of the two small springs are fixedly connected to the top of the third block. The tops of the two abutting blocks are fixedly connected with spherical blocks. The IBC tank safety valve is reasonable in structural design, the safety valve body can adjust positive pressure and negative pressure of an IBC tank through cooperation of the fixing plug, the bottom ring, the first block, the second block, the third block, the first spring and the second spring, and therefore a user can use the IBC tank safety valve conveniently.

Description

Technical Field

[0001] The utility model relates to the field of safety valves, in particular to a positive and negative pressure dual-purpose thin safety valve for an IBC tank. Background Art

[0002] Intermediate Bulk Containers (IBCs) are excellent liquid packaging containers, widely used in the chemical, pharmaceutical, oil, paint, and food industries. IBCs are safe and environmentally friendly, easy to load and unload mechanically, space-saving for storage and transportation, and convenient for filling and draining. They offer unparalleled advantages over other packaging options in terms of space savings, increased efficiency, and ease of movement. Compared to drums, IBCs can save 35% of storage space. Designed to be sized according to ISO standards and designed for ease of use, IBCs can be stacked four high and can be transported in any conventional manner.

[0003] When using existing IBC tanks, the thin dual-purpose positive and negative pressure safety valves for IBC tanks can generally only provide single positive and negative pressure protection, which makes it difficult for users to flexibly handle situations where the device experiences positive or negative pressure. Therefore, we propose a thin dual-purpose positive and negative pressure safety valve for IBC tanks to solve this problem. Utility Model Content

[0004] The purpose of the utility model is to provide a positive and negative pressure dual-purpose thin safety valve for an IBC tank, so as to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A positive and negative pressure dual-purpose thin safety valve for an IBC tank comprises: a safety valve body and a bottom ring, wherein the bottom of the safety valve body is fixedly connected to a No. 1 disk, the bottom of the No. 1 disk is threadedly connected to a No. 2 disk by a bolt, the bottom of the No. 2 disk is fixedly connected to the bottom of the bottom ring, the inner side of the bottom ring is fixedly connected to a connecting pipe, the top of the connecting pipe is movably abutted against a No. 3 block, a sliding groove is provided on the inner side of the No. 3 block, two abutting blocks are slidably connected to the inner side of the sliding groove, and one side of the two abutting blocks is fixedly connected to a small spring, the other ends of the two small springs are fixedly connected to the top of the No. 3 block, the tops of the two abutting blocks are fixedly connected to a spherical block, and the outer sides of the two spherical blocks are movably abutted against the same connecting block.

[0007] Preferably, the top of the No. 3 block is fixedly connected to the No. 1 spring, the other end of the No. 1 spring is fixedly connected to the No. 1 block, the inside of the No. 1 block is fixedly connected to a piston, and the inside of the safety valve body is provided with a No. 1 hole adapted to the piston, and the outside of the piston is slidably connected to the inside of the No. 1 hole.

[0008] Preferably, the bottom of the piston is fixedly connected to block No. 2, the bottom of block No. 2 is integrally formed with a connecting ring, the inner side of the connecting ring is slidably connected to block No. 4, and the bottom of block No. 4 is fixedly connected to the top of the connecting block, and the top of block No. 4 is fixedly connected to spring No. 2, and the other end of spring No. 2 is fixedly connected to the bottom of block No. 2.

[0009] Preferably, the outside of the safety valve body is fixedly connected to a vent pipe, the outside of the vent pipe is fixedly connected to a No. 3 disk, and a plurality of threaded holes are opened on one side of the No. 3 disk.

[0010] Preferably, a fixing plug is fixedly connected to the top of the safety valve body, and a No. 1 vent hole is provided on the top of the fixing plug.

[0011] Preferably, a second vent hole is provided on the inner side of the second block.

[0012] In the utility model, a positive and negative pressure dual-purpose thin safety valve for an IBC tank is described. By connecting one end of a connecting pipe to the interior of the IBC tank, when the air pressure inside the IBC tank is greater than that outside, the internal air pressure flows from the inside of the connecting pipe, thereby driving the No. 3 block to move upward, thereby compressing the No. 1 spring. At this time, the top of the connecting pipe is no longer abutted by the No. 3 block, causing the internal gas of the IBC tank to be discharged to the outside through the vent pipe. Until the air pressure inside and outside the IBC tank is balanced, the No. 3 block is elastically acted upon by the No. 1 spring and abuts against the top of the connecting pipe again.

[0013] In the utility model, the positive and negative pressure dual-purpose thin safety valve for an IBC tank is configured such that when the pressure inside the IBC tank is lower than that outside, the outside gas pushes the No. 4 block, causing the No. 2 spring to stretch, thereby causing the connecting block to move downward and abut against the two spherical blocks, thereby causing the abutting block inside the No. 3 block to start moving and compressing the small spring, thereby unsealing the top of the connecting pipe, allowing the outside gas to enter the inside of the device through the connecting pipe. When the air pressure inside and outside the IBC tank is the same, the No. 4 block begins to reset under the action of the No. 2 spring, causing the abutting block to re-seal the inside of the No. 3 block under the action of the small spring.

[0014] The utility model has a reasonable structural design. Through the cooperation among the fixed plug, the bottom ring, the No. 1 block, the No. 2 block, the No. 3 block, the No. 1 spring and the No. 2 spring, the safety valve body can adjust the positive and negative pressures of the IBC tank, thereby facilitating use by users. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the structure of a positive and negative pressure dual-purpose thin safety valve for IBC tanks proposed by the utility model;

[0016] Figure 2This is a schematic cross-sectional view of a thin safety valve for positive and negative pressure used in IBC tanks proposed by the utility model;

[0017] Figure 3 for Figure 2 A partial enlargement of Figure A.

[0018] In the figure: 1. Safety valve body; 2. Fixing plug; 3. Disc No. 1; 4. Disc No. 2; 5. Bottom ring; 6. Connecting pipe; 7. Breather pipe; 8. Disc No. 3; 9. Piston; 10. Block No. 1; 11. Spring No. 1; 12. Block No. 3; 13. Block No. 2; 14. Spring No. 2; 15. Block No. 4; 16. Connecting block; 18. Spherical block; 19. Abutment block. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0020] Reference Figure 1-3 A positive and negative pressure dual-purpose thin safety valve for IBC tanks, comprising: a safety valve body 1 and a bottom ring 5, the bottom of the safety valve body 1 is fixedly connected to a No. 1 disk 3, the bottom of the No. 1 disk 3 is threadedly connected to a No. 2 disk 4 by a bolt, the bottom of the No. 2 disk 4 is fixedly connected to the bottom of the bottom ring 5, the inner side of the bottom ring 5 is fixedly connected to a connecting pipe 6, the top of the connecting pipe 6 is movably abutted against a No. 3 block 12, a slide groove is provided on the inner side of the No. 3 block 12, two abutting blocks 19 are slidably connected to the inner side of the slide groove, and one side of the two abutting blocks 19 is fixedly connected to a small spring, the other ends of the two small springs are fixedly connected to the top of the No. 3 block 12, the tops of the two abutting blocks 19 are fixedly connected to a spherical block 18, and the outer sides of the two spherical blocks 18 are movably abutted against the same connecting block 16.

[0021] In this embodiment, the top of block No. 3 12 is fixedly connected to spring No. 11, the other end of spring No. 11 is fixedly connected to block No. 10, the inside of block No. 10 is fixedly connected to piston 9, and the inside of the safety valve body 1 is provided with hole No. 1 adapted to piston 9, the outside of piston 9 is slidably connected to the inside of hole No. 1, the bottom of piston 9 is fixedly connected to block No. 2 13, the bottom of block No. 2 13 is integrally formed with a connecting ring, the inside of the connecting ring is slidably connected to block No. 4 15, and the bottom of block No. 4 15 is fixedly connected to the top of connecting block 16, and the top of block No. 4 15 is fixedly connected to spring No. 2 14, the other end of spring No. 2 14 is fixedly connected to the bottom of block No. 2 13, which allows block No. 2 13 to automatically reset.

[0022] In this embodiment, the outside of the safety valve body 1 is fixedly connected to a vent pipe 7, the outside of the vent pipe 7 is fixedly connected to a No. 3 disk 8, one side of the No. 3 disk 8 is provided with multiple threaded holes, the top of the safety valve body 1 is fixedly connected to a fixed plug 2, the top of the fixed plug 2 is provided with a No. 1 vent hole, and the inside of the No. 2 block 13 is provided with a No. 2 vent hole, so that the gas can flow with the outside world.

[0023] In this embodiment, when in use, by connecting one end of the connecting pipe 6 to the inside of the IBC tank, when the air pressure inside the IBC tank is greater than that outside, the internal air pressure flows from the inside of the connecting pipe 6, thereby driving the No. 3 block 12 to move upward, thereby compressing the No. 1 spring 11. At this time, the top of the connecting pipe 6 is no longer abutted by the No. 3 block 12, causing the internal gas of the IBC tank to be discharged to the outside through the vent pipe 7 until the air pressure inside and outside the IBC tank is balanced. At this time, the No. 3 block 12 is elastically acted upon by the No. 1 spring 11, and the No. 3 block 12 abuts against the top of the connecting pipe 6 again. When the pressure inside the IBC tank is balanced, the No. 3 block 12 When the force is smaller than that of the outside world, the outside gas pushes the No. 4 block 15, causing the No. 2 spring 14 to stretch, thereby causing the connecting block 16 to move downward and abut against the two spherical blocks 18, causing the abutment block 19 on the inside of the No. 3 block 12 to start moving and causing the small spring to be compressed, thereby no longer sealing the top of the connecting pipe 6, which allows the outside gas to enter the inside of the device from the connecting pipe 6. When the air pressure inside and outside the IBC tank is the same, the No. 4 block 15 begins to reset under the action of the No. 2 spring 14, which causes the abutment block 19 to re-seal the inside of the No. 3 block 12 under the action of the small spring.

[0024] The above describes in detail the thin, dual-purpose, positive and negative pressure safety valve for IBC tanks provided by the present invention. This article uses specific examples to illustrate the principles and implementation methods of the present invention. The description of the above examples is intended only to facilitate understanding of the method and core concept of the present invention. It should be noted that those skilled in the art may make various improvements and modifications to the present invention without departing from the principles of the present invention, and such improvements and modifications fall within the scope of protection of the claims of the present invention.

Claims

1. A positive and negative pressure dual-purpose thin safety valve for IBC tanks, characterized by: include: A safety valve body (1) and a bottom ring (5), wherein the bottom of the safety valve body (1) is fixedly connected to a No. 1 disk (3), the bottom of the No. 1 disk (3) is threadedly connected to a No. 2 disk (4) by a bolt, the bottom of the No. 2 disk (4) is fixedly connected to the bottom of the bottom ring (5), the inner side of the bottom ring (5) is fixedly connected to a connecting pipe (6), the top of the connecting pipe (6) is movably abutted against a No. 3 block (12), a sliding groove is provided on the inner side of the No. 3 block (12), two abutting blocks (19) are slidably connected to the inner side of the sliding groove, and one side of the two abutting blocks (19) is fixedly connected to a small spring, the other ends of the two small springs are fixedly connected to the top of the No. 3 block (12), the tops of the two abutting blocks (19) are fixedly connected to a spherical block (18), and the outer sides of the two spherical blocks (18) are movably abutted against the same connecting block (16).

2. A positive and negative pressure dual-purpose thin safety valve for IBC tanks according to claim 1, characterized in that: The top of the No. 3 block (12) is fixedly connected to the No. 1 spring (11), the other end of the No. 1 spring (11) is fixedly connected to the No. 1 block (10), the inner side of the No. 1 block (10) is fixedly connected to the piston (9), and the inner side of the safety valve body (1) is provided with a No. 1 hole adapted to the piston (9), and the outer side of the piston (9) is slidably connected to the inner side of the No. 1 hole.

3. A positive and negative pressure dual-purpose thin safety valve for IBC tanks according to claim 2, characterized in that: The bottom of the piston (9) is fixedly connected to a No. 2 block (13), the bottom of the No. 2 block (13) is integrally formed with a connecting ring, the inner side of the connecting ring is slidably connected to a No. 4 block (15), and the bottom of the No. 4 block (15) is fixedly connected to the top of the connecting block (16), and the top of the No. 4 block (15) is fixedly connected to a No. 2 spring (14), and the other end of the No. 2 spring (14) is fixedly connected to the bottom of the No. 2 block (13).

4. The positive and negative pressure dual-purpose thin safety valve for IBC tanks according to claim 1, characterized in that: The outside of the safety valve body (1) is fixedly connected to a vent pipe (7), the outside of the vent pipe (7) is fixedly connected to a third disk (8), and a plurality of threaded holes are provided on one side of the third disk (8).

5. The positive and negative pressure dual-purpose thin safety valve for IBC tanks according to claim 1, characterized in that: A fixing plug (2) is fixedly connected to the top of the safety valve body (1), and a No. 1 vent hole is provided on the top of the fixing plug (2).

6. The positive and negative pressure dual-purpose thin safety valve for IBC tanks according to claim 3, characterized in that: The inner side of the No. 2 block (13) is provided with a No. 2 vent hole.

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