CN112128443B

CN112128443B - A breather valve for IBC bucket

Info

Publication number: CN112128443B
Application number: CN202011189169.8A
Authority: CN
Inventors: 斯建明; 陈旭英
Original assignee: Hangzhou Toplift Machinery Co ltd
Current assignee: Hangzhou Toplift Machinery Co ltd
Priority date: 2020-10-30
Filing date: 2020-10-30
Publication date: 2022-08-16
Anticipated expiration: 2040-10-30
Also published as: CN112128443A

Abstract

The invention belongs to the technical field of a vent valve, and particularly relates to a vent valve for an IBC barrel, which comprises a valve core, a vent pad and a dustproof cover, wherein when the pressure of external gas is greater than the pressure of gas in the IBC barrel, the external gas can extrude an air inlet valve, the air inlet valve moves downwards to be opened, the external gas can enter a chute formed in a first valve through the air inlet valve, the gas entering the chute enters each connecting pipe through a connecting hole, the gas entering the connecting pipe enters a ring groove formed in a connecting ring shell after being heated by heat-insulating cotton, then enters a heating groove formed in the IBC barrel, is heated by a heat-insulating layer wrapped outside the IBC barrel in the heating groove, and finally enters the IBC barrel; the temperature of the incoming gas is guaranteed.

Description

A breather valve for IBC bucket

Technical Field

The invention belongs to the technical field of vent valves, and particularly relates to a vent valve for an IBC barrel.

Background

The IBC ventilation valve plays a role in adjusting the air pressure inside and outside the IBC barrel in use. When the pressure in the IBC barrel exceeds the external pressure value, the ventilation valve is opened, part of gas in the IBC barrel is discharged into the atmosphere, the pressure in the IBC barrel is reduced, when the pressure in the IBC barrel is smaller than the external pressure value, the ventilation valve is opened, the external gas enters the IBC barrel, the pressure in the IBC barrel is improved, and the safety of the IBC barrel is ensured through gas intake and exhaust.

For the storage of IBC tanks containing urea, in winter, it is necessary to wrap the tank on its periphery with a layer of insulation, preventing the interior from freezing, but because of the presence of the ventilation valve; if the urea is completely wrapped, namely the IBC barrel cover is wrapped together, the urea in the urea is not easy to load and take. The IBC bucket of general dress urea, in order to pack and get the urea conveniently, IBC bung department can not wrap up the heat preservation, will lead to the partial phenomenon of freezing to appear in the urea region of ventilative valve downside like this.

The present invention is directed to a breather valve for an IBC drum that solves the above problems.

Disclosure of Invention

In order to solve the defects in the prior art, the invention discloses a ventilation valve for an IBC barrel, which is realized by adopting the following technical scheme.

A vent valve for an IBC barrel comprises a valve core, a vent pad and a dustproof cover, wherein the valve core is provided with a mounting disc, the mounting disc is provided with a round hole, and one side of the mounting disc is provided with a mounting groove; the valve core is arranged on the IBC barrel cover; the air permeable pad is nested in the mounting groove, the dustproof cover is mounted on the IBC barrel cover, and a gap is formed between the dustproof cover and the air permeable pad; one side of the valve core, which is not provided with the ventilation cover, is provided with an annular valve casing in a nested manner, two ends of the annular valve casing are provided with a first conical surface and a second conical surface, and one ends of the first conical surface and the second conical surface, which are close to the annular valve casing, are provided with annular circular surface areas; two first limiting grooves are symmetrically formed in the first conical surface on the annular valve casing, and two second limiting grooves are symmetrically formed in the second conical surface; the connecting ring shell is fixedly arranged on the lower side of the annular valve shell through the connecting ring, a chassis is arranged on the connecting ring shell, uniformly distributed air holes are formed in the region, located inside the connecting ring, on the chassis, and the upper end of the connecting ring shell is provided with a superposition region with the upper end of the IBC barrel after being arranged; one end of the guide rod is fixedly arranged on the chassis, and the fixing ring is fixedly arranged on the guide rod; the first valve is divided into a cylindrical end and a conical end, two second clamping grooves are symmetrically formed in the outer conical surface of the conical end of the first valve, the first valve is slidably mounted on the guide rod, the conical end of the first valve is matched with the first conical surface on the annular valve casing, and the cylindrical end of the first valve is matched with the annular circular surface corresponding to the first conical surface; a second spring is arranged between the first valve and the fixed ring; the second valve is divided into a cylindrical end and a conical end, and two first clamping grooves are symmetrically formed in the outer conical surface of the conical end of the second valve; the second valve is slidably mounted on the guide rod, a conical surface end on the second valve is matched with a second conical surface on the annular valve casing, and a cylindrical end on the second valve is matched with a corresponding annular circular surface of the second conical surface; a first spring is arranged between the second valve and the chassis.

And a first transmission mechanism and a second transmission mechanism are arranged between the first valve and the second valve.

The first transmission mechanism comprises a fifth spring, a first trigger cone, a first limiting rod, a first connecting rod and connecting strips, wherein the first connecting rod is slidably mounted on the inner side of the guide rod, the lower end of the first connecting rod is fixedly connected with the second valve through the two symmetrically distributed connecting strips, and the two connecting strips can slide on the guide rod; the upper end of the first connecting rod is fixedly provided with a first trigger cone, two first limiting rods are symmetrically and slidably arranged on the annular valve casing, one first limiting rod is correspondingly matched with one first limiting groove and one second clamping groove, and the other first limiting rod is correspondingly matched with the other first limiting groove and the other second clamping groove; one end of each of the two second limiting rods is matched with the second trigger vertebral body; and a fifth spring is respectively arranged between the two first limiting rods and the annular valve casing.

The second transmission mechanism comprises a second connecting rod, a second trigger cone, a second limiting rod and a sixth spring, wherein the second connecting rod is of a telescopic structure, and the inner side of the second connecting rod is provided with a fourth spring; the second connecting rod is slidably mounted outside the guide rod, the upper end of the second connecting rod is fixedly connected with the first valve, the lower end of the second connecting rod is fixedly provided with a second trigger cone, the two second limiting rods are symmetrically and slidably mounted on the annular valve casing, one second limiting rod is correspondingly matched with one second limiting groove and one first clamping groove, and the other second limiting rod is correspondingly matched with the other second limiting groove and the other first clamping groove; one end of each of the two second limiting rods is matched with the second trigger vertebral body; and a sixth spring is respectively arranged between the two second limiting rods and the annular valve casing.

The upper end surface of the first valve is provided with an annular hole, the lower side of the annular hole is provided with a sliding chute which is divided into a conical surface end and an annular circular surface end, the upper circumferential direction of the lower end surface of the sliding chute is uniformly provided with a plurality of connecting holes, the air inlet valve is of a conical structure, the air inlet valve is slidably arranged in the sliding chute, and the air inlet valve is matched with the conical surface end on the sliding chute; a third spring is arranged between the air inlet valve and the annular groove; the IBC barrel is provided with heating grooves which are uniformly distributed in the circumferential direction on the upper side wall surface, and the sliding grooves are connected with the upper side wall surface of the IBC barrel through connecting pipes.

As a further improvement of the technology, a plurality of circular holes are axially and uniformly formed on the outer circular surface of the annular valve casing; the connecting ring shell is provided with a ring groove, and the circular surface of the ring groove is uniformly provided with a plurality of connectors in the circumferential direction; one end of each connecting pipe is fixedly arranged on the connecting hole, and the other end of each connecting pipe penetrates through the circular hole in the annular valve casing and the interface on the connecting annular casing to be connected with the annular groove.

The upper end of the IBC barrel is provided with a conical surface, a plurality of heating grooves are uniformly formed in the inner circumference of the conical surface, one end of each heating groove is positioned on the inner circular surface at the upper end of the conical surface, the other end of each heating groove is positioned on the inner circular surface at the lower end of the conical surface, and each heating groove passes through the inner part of the conical surface end on the IBC barrel cover; after the IBC barrel cover is covered, the ring groove on the connecting ring shell is communicated with one end, located on the upper side, of the heating groove formed in the IBC barrel, and the other end of the heating groove is located on the lower side of the connecting ring shell.

As a further improvement of the technology, heat insulation cotton is arranged between the connecting ring shell and the valve core and the annular valve shell in the middle.

As a further improvement of the technology, the IBC barrel cover is provided with a mounting round hole for mounting the valve core, a mounting ring is fixedly mounted on the inner end surface of the IBC barrel cover, and a sealing gasket is arranged between the mounting ring and the inner circular surface of the IBC barrel cover; the IBC barrel cover is characterized in that a plurality of installation jacks are uniformly formed in the circumferential direction of the upper end of the IBC barrel cover, a plurality of bolts are fixedly installed on one end of the dustproof cover in the circumferential direction, and the dustproof cover is installed on the upper side of the IBC barrel cover through the cooperation of the bolts and the installation jacks.

As a further improvement of the technology, the annular valve casing is provided with a limiting ring which plays a limiting role in the annular valve casing.

As a further improvement of the technology, the second valve is provided with a first guide hole, and the second valve is arranged on the guide rod through the sliding fit of the first guide hole and the guide rod; a first sealing ring is arranged between the first guide hole and the guide rod; the first valve is provided with a second guide hole and is arranged on the guide rod through the sliding fit of the second guide hole and the guide rod; and a second sealing ring is arranged between the second guide hole and the guide rod.

As a further improvement of the present technology, the intake valve is slidably mounted in a slide slot formed in the first valve through a telescopic ring.

As a further improvement of the present technology, the first spring is an extension spring and has a pretension force; the second spring is an extension spring and has a pretension.

As a further improvement of the present technology, the third spring is a compression spring and has a pre-pressure.

Compared with the traditional ventilation valve technology, the ventilation valve has the following beneficial effects:

1. when exhausting in the IBC bucket, annular valve casing and first valve can be died by at first locking, and the upper end of annular valve casing is died by stifled promptly, and the lower extreme is opened, and the gas in the IBC bucket will discharge into annular valve casing this moment, and the gas in the annular valve casing can not intersect with external gas, can not have convection current and radiant heat basically and run off. Afterwards, the second valve will be closed, and first valve is opened and the second valve is closed to lock simultaneously and is died, and the lower extreme of annular valve casing is blocked up promptly, and the upper end is opened, and the gas in the annular valve casing will be discharged the external world through first valve this moment, and under this kind of state, the lower extreme of annular valve casing is blocked up to the second valve, so the heat of the gas in the IBC bucket basically can not run off in a large number, guarantees that the gas heat of gas in the discharge process IBC bucket can not run off in a large number.

2. When the pressure of the external gas is greater than that of the gas in the IBC barrel, the external gas extrudes the air inlet valve, the air inlet valve moves downwards to be opened, the external gas enters the chute formed in the first valve through the air inlet valve, the gas entering the chute enters each connecting pipe through the connecting hole, the gas entering the connecting pipes enters the annular groove formed in the connecting ring shell after being heated by the heat insulation cotton, then enters the heating groove formed in the IBC barrel, is heated by the heat insulation layer wrapped outside the IBC barrel in the heating groove, and finally enters the IBC barrel; the temperature of the incoming gas is guaranteed.

3. The related transmission structures of the first valve and the second valve are mutually nested, so that the structure is compact, the execution is convenient, and the sealing effect is good because the traditional sealing structure can be adopted.

4. According to the invention, the heat insulation cotton is arranged outside the connecting ring, so that the gas flowing into the connecting pipe is heated, and the heat insulation effect of the vent valve is improved.

Drawings

Fig. 1 is an external view of an entire part.

Fig. 2 is a schematic view of the overall component distribution.

FIG. 3 is a schematic illustration of an IBC bucket structure.

FIG. 4 is an IBC tub lid appearance schematic.

Figure 5 is an IBC drum lid configuration schematic.

Fig. 6 is a schematic view of a mounting jack distribution.

Fig. 7 is a schematic view of the dust cap structure.

Fig. 8 is a schematic view of the air-permeable mat installation.

Fig. 9 is a schematic view of the structure of the airing pad.

FIG. 10 is a schematic view of the cartridge and mounting ring housing distribution.

FIG. 11 is a schematic view of the mounting collar housing installation.

Fig. 12 is a schematic view of the valve cartridge structure.

Fig. 13 is a schematic view of the mounting ring housing structure.

Figure 14 is a schematic view of the annular valve housing and first valve cooperation.

Figure 15 is a schematic view of the annular valve housing and second valve mating.

Fig. 16 is a schematic view of an annular valve housing construction.

Fig. 17 is a schematic view of the first transmission mechanism.

Fig. 18 is a schematic view of the second transmission mechanism.

Fig. 19 is a schematic view of a first valve structure.

Figure 20 is a schematic view of the second valve configuration.

Figure 21 is a schematic view of the wrapping installation.

Number designation in the figures: 1. an IBC barrel; 2. an IBC tub lid; 3. a gasket; 4. a conical surface; 5. a heating tank; 6. a vent valve; 7. mounting a round hole; 8. installing a jack; 9. a mounting ring; 10. a dust cover; 11. a bolt; 12. a breathable cushion; 13. mounting grooves; 14. a valve core; 15. connecting the ring shell; 16. a connecting pipe; 17. a connecting ring; 18. a circular hole; 19. mounting a disc; 20. a chassis; 21. a fixing ring; 22. a guide rod; 23. an interface; 24. air holes; 25. a ring groove; 26. an annular valve housing; 27. a first valve; 28. a first transmission mechanism; 29. a second transmission mechanism; 30. a second valve; 31. a first conical surface; 32. a limiting ring; 33. a circular hole; 34. a first limit groove; 35. a second limit groove; 36. a second tapered surface; 37. a fourth spring; 38. a fifth spring; 39. a first trigger cone; 40. a first limit rod; 41. a first link; 42. a connecting strip; 43. a second link; 44. a second trigger vertebral body; 45. a second limiting rod; 46. a sixth spring; 51. a first seal ring; 52. a first guide hole; 53. a first spring; 54. a first card slot; 55. a second card slot; 56. a second spring; 57. a second seal ring; 58. a second guide hole; 59. connecting holes; 60. an air intake valve; 61. a chute; 62. a third spring; 63. an annular hole; 64. a telescopic ring.

Detailed Description

The following detailed description of the present invention is provided in connection with the accompanying drawings and examples. The following examples or figures are illustrative of the present invention and are not intended to limit the scope of the present invention.

As shown in fig. 4 and 5, the valve core comprises a valve core, a ventilation pad and a dust cover, wherein as shown in fig. 12, the valve core is provided with a valve core 14, a ventilation pad 12 and a dust cover 10, wherein as shown in fig. 12, the valve core 14 is provided with a mounting disc 19, the mounting disc 19 is provided with a round hole 18, and one side of the mounting disc 19 is provided with a mounting groove 13; as shown in fig. 5, the cartridge 14 is mounted on the IBC drum lid 2; as shown in fig. 8 and 9, the air permeable pad 12 is nested in the mounting groove 13, as shown in fig. 5, the dust cap 10 is mounted on the IBC barrel cover 2, and a gap is formed between the dust cap 10 and the air permeable pad 12; as shown in fig. 5 and 11, the annular valve casing 26 is nested on the side of the valve core 14 not provided with the vent cover, as shown in fig. 16, both ends of the annular valve casing 26 are provided with a first conical surface 31 and a second conical surface 36, and both ends of the first conical surface 31 and the second conical surface 36 close to the annular valve casing 26 are provided with annular circular surface areas; two first limiting grooves 34 are symmetrically formed in the first conical surface 31 of the annular valve casing 26, and two second limiting grooves 35 are symmetrically formed in the second conical surface 36; as shown in fig. 11, the connecting ring shell 15 is fixedly mounted on the lower side of the annular valve casing 26 through the connecting ring 17, as shown in fig. 13, the connecting ring shell 15 is provided with a base plate 20, an area of the base plate 20 inside the connecting ring 17 is provided with uniformly distributed air holes 24, as shown in fig. 2, the upper end of the connecting ring shell 15 has an overlapping area with the upper end of the IBC barrel 1 after mounting; as shown in fig. 13, one end of the guide rod 22 is fixedly mounted on the chassis 20, and the fixing ring 21 is fixedly mounted on the guide rod 22; as shown in fig. 19, the first valve 27 is divided into a cylindrical end and a tapered surface 4 end, and two second locking grooves 55 are symmetrically formed on the outer tapered surface 4 of the tapered surface 4 end of the first valve 27, as shown in fig. 14 and 15, the first valve 27 is slidably mounted on the guide rod 22, the tapered surface 4 end of the first valve 27 is matched with the first tapered surface 31 on the annular valve housing 26, and the cylindrical end of the first valve 27 is matched with the annular circular surface corresponding to the first tapered surface 31; a second spring 56 is arranged between the first valve 27 and the fixed ring 21; as shown in fig. 20, the second valve 30 is divided into a cylindrical end and a tapered end 4, and two first locking grooves 54 are symmetrically formed on the outer tapered surface 4 of the tapered end 4 of the second valve 30; as shown in fig. 14 and 15, the second valve 30 is slidably mounted on the guide rod 22, and the tapered surface 4 end of the second valve 30 is engaged with the second tapered surface 36 of the annular valve housing 26, and the cylindrical end of the second valve 30 is engaged with the corresponding annular circular surface of the second tapered surface 36; a first spring 53 is mounted between the second valve 30 and the chassis 20.

The clearance between the dustproof cover 10 and the breathable pad 12 can ensure smooth circulation of the air inside the IBC barrel 1 and the outside air; meanwhile, the clearance can also ensure that the dustproof cover 10 can effectively protect the breathable pad 12 from dust. The gas permeable mat 12 provides some filtering of the gas entering the IBC tank 1.

The annular valve housing 26 designed by the present invention is provided with annular round surfaces at both the first conical surface 31 and the second conical surface 36, and the circular round surfaces are respectively matched with the cylindrical ends of the first valve 27 and the second valve 30, so that the design aims to prevent the first rack for limiting the annular valve casing 26 and the first valve 27 and the eighth rack for limiting the annular valve casing 26 and the second valve 30 from being worn after long-term use, after the first valve 27 and the annular valve housing 26 are separated from opening, the eighth rack has not reached to limit the second valve 30 due to wear, or after the second valve 30 and the annular valve housing 26 are separated from opening, the first rack is not yet reached to be limited to first valve 27 because of wearing and tearing after second valve 30 and annular valve casing 26 break away from to open, leads to annular valve casing 26 upper and lower both ends all to be in the open mode, and the inside and outside gas of IBC bucket 1 is the same, has lost the sealed heat preservation effect to gaseous in the IBC bucket 1.

In the invention, the uniformly distributed air holes 24 are formed in the area, positioned inside the connecting ring 17, on the chassis 20, so that the purpose of the design is to ensure that the air in the IBC barrel 1 is discharged from the inside of the connecting ring 17 through the opened air holes 24 when being discharged, the space outside the connecting ring 17 is not occupied, the space occupied when the air is discharged is reduced, and the heat-insulating cotton is favorably added into the space outside the connecting ring 17; in the invention, the heat insulation cotton is arranged outside the connecting ring 17, so that the gas flowing into the connecting pipe 16 is heated, and the heat insulation effect of the high-permeability valve 6 is improved.

According to the invention, the upper end of the connecting ring shell 15 has a superposed region with the upper end of the IBC barrel 1 after installation, so that on one hand, the stability of the connecting ring shell 15 after installation is improved, and on the other hand, the connecting ring shell 15 has a sealing effect on the inner space of the connecting ring shell 15, and the heat insulation effect of the heat insulation cotton is improved.

The second spring 56 of the present invention is designed to return the first valve 27, and the first spring 53 is designed to return the second valve 30.

As shown in fig. 17 and 18, a first transmission mechanism 28 and a second transmission mechanism 29 are installed between the first valve 27 and the second valve 30.

As shown in fig. 17, the first transmission mechanism 28 includes a fifth spring 38, a first trigger cone 39, a first limiting rod 40, a first connecting rod 41, and a connecting bar 42, wherein the first connecting rod 41 is slidably mounted inside the guide rod 22, the lower end of the first connecting rod 41 is fixedly connected to the second valve 30 through two symmetrically distributed connecting bars 42, and the two connecting bars 42 can slide on the guide rod 22; a first trigger cone 39 is fixedly installed at the upper end of the first connecting rod 41, two first limiting rods 40 are symmetrically and slidably installed on the annular valve casing 26, one first limiting rod 40 is correspondingly matched with one first limiting groove 34 and one second clamping groove 55, and the other first limiting rod 40 is correspondingly matched with the other first limiting groove 34 and the other second clamping groove 55; one end of each of the two second limiting rods 45 is matched with the second trigger cone 44; a fifth spring 38 is mounted between each of the first restraint rods 40 and the annular valve housing 26.

As shown in fig. 18, the second transmission mechanism 29 includes a second connecting rod 43, a second triggering cone 44, a second limiting rod 45, and a sixth spring 46, wherein the second connecting rod 43 is a telescopic structure and has a fourth spring 37 inside; the second connecting rod 43 is slidably mounted outside the guide rod 22, the upper end of the second connecting rod 43 is fixedly connected with the first valve 27, the lower end of the second connecting rod 43 is fixedly provided with a second trigger cone 44, the two second limiting rods 45 are symmetrically and slidably mounted on the annular valve casing 26, one second limiting rod 45 is correspondingly matched with one second limiting groove 35 and one first clamping groove 54, and the other second limiting rod 45 is correspondingly matched with the other second limiting groove 35 and the other first clamping groove 54; one end of each of the two second limiting rods 45 is matched with the second trigger cone 44; a sixth spring 46 is mounted between each of the two second limiting rods 45 and the annular valve housing 26.

As shown in fig. 19, an annular hole 63 is formed in the upper end surface of the first valve 27, a sliding groove 61 is formed in the lower side of the annular hole 63, the sliding groove 61 is divided into a conical surface 4 end and an annular circular surface end, a plurality of connection holes 59 are uniformly formed in the lower end surface of the sliding groove 61 in the circumferential direction, the intake valve 60 is in a conical structure, the intake valve 60 is slidably installed in the sliding groove 61, and the intake valve 60 is matched with the conical surface 4 end of the sliding groove 61; a third spring 62 is arranged between the air inlet valve 60 and the annular groove 25; the upper side wall surface of the IBC barrel 1 is provided with heating grooves 5 uniformly distributed in the circumferential direction, and as shown in fig. 10 and 11, the sliding groove 61 is connected with the upper side wall surface of the IBC barrel 1 through a connecting pipe 16. The third spring 62 acts to increase the return force for the intake valve 60.

As shown in fig. 16, a plurality of circular holes 33 are uniformly formed in the outer circumferential surface of the annular valve housing 26 in the axial direction; as shown in fig. 13, the connecting ring shell 15 is provided with a ring groove 25, and a plurality of connectors 23 are uniformly arranged on the circular surface of the ring groove 25 in the circumferential direction; one end of a plurality of connecting pipes 16 is fixedly arranged on the connecting hole 59, and the other end passes through the circular hole 33 on the annular valve shell 26 and the interface 23 on the connecting annular shell 15 to be connected with the annular groove 25.

As shown in fig. 3, the upper end of the IBC barrel 1 has a conical surface 4, a plurality of heating grooves 5 are uniformly formed in the inner circumferential direction of the conical surface 4, one end of each heating groove 5 is located on the inner circular surface at the upper end of the conical surface 4, the other end of each heating groove 5 is located on the inner circular surface at the lower end of the conical surface 4, and the heating grooves 5 pass through the inner part of the upper conical surface 4 of the IBC barrel cover 2; as shown in fig. 1 and 2, after the IBC tub cover 2 is closed, the annular groove 25 of the connection ring 15 is connected to an upper end of the heating groove 5 formed in the IBC tub 1, and the other end of the heating groove 5 is located at a lower end of the connection ring 15.

And heat insulation cotton is arranged between the connecting ring shell 15 and the valve core 14 and the annular valve shell 26 in the middle.

As shown in fig. 6, the IBC barrel cover 2 is provided with a mounting circular hole 7 for mounting the valve core 14, a mounting ring 9 is fixedly mounted on the inner end surface of the IBC barrel cover 2, and a sealing gasket 3 is arranged between the mounting ring 9 and the inner circular surface of the IBC barrel cover 2; as shown in fig. 6, a plurality of installation insertion holes 8 are uniformly formed in the upper end of the IBC barrel cover 2 in the circumferential direction, as shown in fig. 7, a plurality of bolts 11 are fixedly installed at one end of the dust cap 10 in the circumferential direction, and as shown in fig. 5, the dust cap 10 is installed on the upper side of the IBC barrel cover 2 through the matching of the bolts 11 and the installation insertion holes 8. The sealing gasket 3 ensures the sealing performance of the IBC barrel cover 2 after being covered.

As shown in fig. 16, a stopper ring 32 for stopping the annular valve casing 26 is attached to the annular valve casing 26. After the annular valve casing 26 is covered on the IBC barrel cover 2 after installation, the annular groove 25 on the connecting ring casing 15 is communicated with one end, located on the upper side, of the heating groove 5 formed in the IBC barrel 1, and the other end of the heating groove 5 is located on the lower side of the connecting ring casing 15.

As shown in fig. 20, the second valve 30 has a first guide hole 52, and the second valve 30 is mounted on the guide rod 22 by the sliding fit of the first guide hole 52 and the guide rod 22; a first sealing ring 51 is arranged between the first guide hole 52 and the guide rod 22; as shown in fig. 19, the first valve 27 has a second guide hole 58, and the first valve 27 is mounted on the guide rod 22 through the sliding fit of the second guide hole 58 and the guide rod 22; a second seal ring 57 is installed between the second guide hole 58 and the guide rod 22. The first sealing ring 51 ensures the tightness of the sliding of the first valve 27 on the guide rod 22, and the second sealing ring 57 ensures the tightness of the sliding of the second valve 30 on the guide rod 22.

As shown in fig. 19, the intake valve 60 is slidably mounted in a slot 61 formed in the first valve 27 via a telescopic ring 64. The extension ring 64 guides the intake valve 60.

The first spring 53 is an extension spring and has a pretension force; the second spring 56 is an extension spring and has a pretension.

The third spring 62 is a compression spring and has a preload.

The fourth spring 37 is designed to return the second link 43, and the second link 43 is in the longest state in the initial state, and the reason why the second link 43 is in the telescopic structure is to prevent the second valve 30 from interfering with the first transmission mechanism 28, the second transmission mechanism 29 and the first valve 27 during the upward movement. The reason for providing the two connecting strips 42 in contact engagement with the second valve 30 is to prevent the first valve 27 from interfering with the first actuator 28, the second actuator 29 and the second valve 30 during upward movement.

The specific working process comprises the following steps: when the vent valve 6 designed by the invention is used, when the pressure of the gas in the IBC barrel 1 is higher than the pressure of the gas in the annular valve casing 26, the gas in the IBC barrel 1 pushes the second valve 30 to slide upwards along the guide rod 22, when the second valve 30 moves upwards, the second valve 30 drives the first connecting rod 41 to move upwards through the two connecting strips 42, the first connecting rod 41 moves to drive the first trigger vertebral body 39 to move, the first trigger vertebral body 39 moves to extrude the two first limiting rods 40, so that the two first limiting rods 40 limit the first valve 27 after the two first limiting rods 40 move to be in contact with the second clamping grooves 55 on the first valve 27; the annular valve casing 26 and the first valve 27 are locked, namely the upper end of the annular valve casing 26 is blocked, and the lower end is opened, at the moment, the gas in the IBC barrel 1 is discharged into the annular valve casing 26, the gas in the annular valve casing 26 cannot be intersected with the outside gas, a large amount of heat loss basically cannot occur, in the process, the lower end of the second connecting rod 43 moves upwards relative to the upper end, and the fourth return spring is compressed; when the gas pressure in the annular valve casing 26 and the elastic force of the first spring 53 are greater than the gas pressure in the IBC barrel 1, the second valve 30 is gradually closed under the action of the first spring 53, when the second valve 30 is closed, the second valve 30 drives the first connecting rod 41 to move downward through the two connecting strips 42, the first connecting rod 41 moves to drive the first trigger vertebral body 39 to move, the extrusion on the two first limiting rods 40 is lost, the two first limiting rods 40 reset under the action corresponding to the fifth spring 38, and when the two first limiting rods 40 move to be separated from the second clamping grooves 55 on the first valve 27, the two first limiting rods 40 release the limitation on the first valve 27.

After the first valve 27 is relieved from limiting, the pressure of the gas in the annular valve casing 26 is greater than the pressure of the external gas, so that the first valve 27 is pushed to move upwards, the first valve 27 drives the second connecting rod 43 to move upwards, the second connecting rod 43 moves to drive the second trigger vertebral body 44 to move, and the second trigger vertebral body 44 moves to extrude the two second limiting rods 45, so that the two second limiting rods 45 limit the second valve 30 after moving to contact with the first clamping grooves 54 on the second valve 30; the annular valve casing 26 and the second valve 30 are locked, namely the lower end of the annular valve casing 26 is blocked, the upper end is opened, the first connecting rod 41 moves upwards along with the first valve 27 in the process, the connecting strip 42 is separated from the second valve 30, at the moment, the gas in the annular valve casing 26 is discharged outside through the first valve 27, and in the state, the second valve 30 blocks the lower end of the annular valve casing 26, so that the heat of the gas in the IBC barrel 1 cannot be lost; when the pressure of the outside air and the elastic force of the second spring 56 are greater than the pressure of the air in the annular valve casing 26, the first valve 27 is gradually closed under the action of the second spring 56, when the first valve 27 is closed, the first valve 27 drives the second connecting rod 43 to move downwards, the second connecting rod 43 moves to drive the second trigger vertebral body 44 to move, the extrusion on the two second limiting rods 45 is lost, the two second limiting rods 45 reset under the action of the corresponding sixth spring 46, and when the two second limiting rods 45 move to be separated from the first clamping grooves 54 on the second valve 30, the two second limiting rods 45 release the limitation on the second valve 30.

When the pressure of the external gas is greater than the pressure of the gas in the IBC barrel 1, the external gas will squeeze the gas inlet valve 60, the gas inlet valve 60 moves downward and opens, the external gas will enter the chute 61 formed on the first valve 27 through the gas inlet valve 60, enter the gas passage hole 59 in the chute 61 and enter each connecting pipe 16, the gas entering the connecting pipe 16 is heated by the heat insulation cotton, enters the ring groove 25 formed on the connecting ring shell 15, then enters the heating groove 5 formed on the IBC barrel 1, as shown in fig. 21, the gas in the heating groove 5 is heated by the heat insulation layer wrapped outside the IBC barrel 1, and finally enters the IBC barrel 1; the temperature of the incoming gas is guaranteed.

Claims

1. A vent valve for an IBC barrel comprises a valve core, a vent pad and a dustproof cover, wherein the valve core is provided with a mounting disc, the mounting disc is provided with a round hole, and one side of the mounting disc is provided with a mounting groove; the valve core is arranged on the IBC barrel cover; the air permeable pad is nested in the mounting groove, the dustproof cover is mounted on the IBC barrel cover, and a gap is formed between the dustproof cover and the air permeable pad; the method is characterized in that: one side of the valve core, which is not provided with the ventilation cover, is provided with an annular valve casing in a nested manner, two ends of the annular valve casing are provided with a first conical surface and a second conical surface, and one ends of the first conical surface and the second conical surface, which are close to the annular valve casing, are provided with annular circular surface areas; two first limiting grooves are symmetrically formed in the first conical surface on the annular valve casing, and two second limiting grooves are symmetrically formed in the second conical surface; the connecting ring shell is fixedly arranged on the lower side of the annular valve shell through the connecting ring, a chassis is arranged on the connecting ring shell, uniformly distributed air holes are formed in the region, located inside the connecting ring, on the chassis, and the upper end of the connecting ring shell is provided with a superposition region with the upper end of the IBC barrel after being arranged; one end of the guide rod is fixedly arranged on the chassis, and the fixing ring is fixedly arranged on the guide rod; the first valve is divided into a cylindrical end and a conical end, two second clamping grooves are symmetrically formed in the outer conical surface of the conical end of the first valve, the first valve is slidably mounted on the guide rod, the conical end of the first valve is matched with the first conical surface on the annular valve casing, and the cylindrical end of the first valve is matched with the annular circular surface corresponding to the first conical surface; a second spring is arranged between the first valve and the fixed ring; the second valve is divided into a cylindrical end and a conical end, and two first clamping grooves are symmetrically formed in the outer conical surface of the conical end of the second valve; the second valve is slidably mounted on the guide rod, a conical surface end on the second valve is matched with a second conical surface on the annular valve casing, and a cylindrical end on the second valve is matched with a corresponding annular circular surface of the second conical surface; a first spring is arranged between the second valve and the chassis;

a first transmission mechanism and a second transmission mechanism are arranged between the first valve and the second valve;

the first transmission mechanism comprises a fifth spring, a first trigger cone, a first limiting rod, a first connecting rod and connecting strips, wherein the first connecting rod is slidably mounted on the inner side of the guide rod, the lower end of the first connecting rod is fixedly connected with the second valve through the two symmetrically distributed connecting strips, and the two connecting strips can slide on the guide rod; the upper end of the first connecting rod is fixedly provided with a first trigger cone, two first limiting rods are symmetrically and slidably arranged on the annular valve casing, one first limiting rod is correspondingly matched with one first limiting groove and one second clamping groove, and the other first limiting rod is correspondingly matched with the other first limiting groove and the other second clamping groove; one end of each of the two first limiting rods is matched with the first trigger vertebral body; a fifth spring is respectively arranged between the two first limiting rods and the annular valve casing;

the second transmission mechanism comprises a second connecting rod, a second trigger cone, a second limiting rod and a sixth spring, wherein the second connecting rod is of a telescopic structure, and the inner side of the second connecting rod is provided with a fourth spring; the second connecting rod is slidably mounted outside the guide rod, the upper end of the second connecting rod is fixedly connected with the first valve, the lower end of the second connecting rod is fixedly provided with a second trigger cone, the two second limiting rods are symmetrically and slidably mounted on the annular valve casing, one second limiting rod is correspondingly matched with one second limiting groove and one first clamping groove, and the other second limiting rod is correspondingly matched with the other second limiting groove and the other first clamping groove; one end of each of the two second limiting rods is matched with the second trigger vertebral body; a sixth spring is respectively arranged between the two second limiting rods and the annular valve casing;

2. A venting valve for IBC casks as claimed in claim 1, wherein: a plurality of circular holes are axially and uniformly formed in the outer circular surface of the annular valve casing; the connecting ring shell is provided with a ring groove, and the circular surface of the ring groove is uniformly provided with a plurality of connectors in the circumferential direction; one end of each connecting pipe is fixedly arranged on the connecting hole, and the other end of each connecting pipe penetrates through the circular hole in the annular valve shell and the interface on the connecting annular shell to be connected with the annular groove;

3. A venting valve for IBC casks as claimed in claim 1, wherein: and heat insulation cotton is arranged between the connecting ring shell and the valve core and the annular valve shell in the middle.

4. A venting valve for IBC casks as claimed in claim 1, wherein: the IBC barrel cover is provided with a mounting round hole for mounting the valve core, a mounting ring is fixedly mounted on the inner end face of the IBC barrel cover, and a sealing gasket is arranged between the mounting ring and the inner circular face of the IBC barrel cover; the IBC barrel cover is characterized in that a plurality of installation jacks are uniformly formed in the circumferential direction of the upper end of the IBC barrel cover, a plurality of bolts are fixedly installed on one end of the dustproof cover in the circumferential direction, and the dustproof cover is installed on the upper side of the IBC barrel cover through the cooperation of the bolts and the installation jacks.

5. A venting valve for IBC casks as claimed in claim 1, wherein: the limiting ring which has limiting effect on the annular valve casing is arranged on the annular valve casing.

6. A venting valve for IBC casks as claimed in claim 1, wherein: the second valve is provided with a first guide hole and is arranged on the guide rod through the sliding fit of the first guide hole and the guide rod; a first sealing ring is arranged between the first guide hole and the guide rod; the first valve is provided with a second guide hole and is arranged on the guide rod through the sliding fit of the second guide hole and the guide rod; and a second sealing ring is arranged between the second guide hole and the guide rod.

7. A venting valve for IBC casks as claimed in claim 1, wherein: the air inlet valve is slidably mounted in a chute formed in the first valve through a telescopic ring.

8. A venting valve for an IBC drum as claimed in claim 1, wherein: the first spring is an extension spring and has pretension; the second spring is an extension spring and has a pretension.

9. A venting valve for IBC casks as claimed in claim 1, wherein: the third spring is a compression spring and has pre-pressure.