CN211108870U

CN211108870U - Plastic barrel with anti-expansion function

Info

Publication number: CN211108870U
Application number: CN201921944009.2U
Authority: CN
Inventors: 徐道民; 高庆果; 邢事成; 钱鹏霄; 辛亚
Original assignee: Shandong Baoxin Plastic Industry Co ltd
Current assignee: Shandong Baoxin Plastic Industry Co ltd
Priority date: 2019-11-12
Filing date: 2019-11-12
Publication date: 2020-07-28
Anticipated expiration: 2029-11-12

Abstract

The utility model provides a plastic barrel with an anti-expansion function, which comprises a barrel body and a barrel cover, sealing cap and sealed valve body, the top of bung is provided with first level groove and second level groove, the bottom of staving is provided with the ladder arch, sealed valve body is folding valve body, folding valve body includes the horizontal part, first connecting portion and second connecting portion, be provided with first easy-to-draw ring subassembly and second easy-to-draw ring subassembly on sealing cap and the folding valve body respectively, first easy-to-draw ring subassembly includes two inferior arc holes and a major arc hole, the lower surface of sealing cap is provided with curved strengthening rib, second easy-to-draw ring subassembly includes pull ring and gasket, the center of gasket is provided with the breathing ring post, the top of breathing ring post is provided with the breathing membrane, the top of second connecting portion is provided with the air channel, the bottom surface of sealing cap is provided with inner ring post and outer ring post, outer ring post and second connecting portion threaded. This device is convenient for a plurality of plastic drum and piles up, has the respiratory function and comes balanced pressure differential, and the high-usage, the gas tightness is good and reasonable in design.

Description

Plastic barrel with anti-expansion function

Technical Field

The utility model belongs to the technical field of equipment for packing, relate to the plastic drum, especially, relate to a plastic drum with prevent function that expands.

Background

Products such as lubricating oil, chemical industry, paint, coating and the like generally use plastic barrels in packaging and transportation. The plastic barrel is simple in structure and single in sealing form.

The plastic barrel in the prior art generally comprises a barrel body and a barrel cover, wherein a sealing cover and a sealing valve body are arranged at the eccentric position of the barrel cover. Wherein, the general top of the barrel cover generally adopts a primary bulge, one purpose is to ensure that the inner surface of the barrel cover is matched with the edge of the top of the barrel body, and the other purpose is to ensure that the contact parts of two vertically stacked barrel bodies are matched to improve the stability, but the effect is not obvious; moreover, the sealing cover and the sealing valve body both adopt the form of an easy-pull ring, the easy-pull ring of the sealing cover needs larger pulling force, the tearing opening of the easy-pull ring is easy to fall excessively, and the opening difficulty is increased; moreover, because the plastic drum does not have the breathing function, lead to in the product transportation, violently jolt and make the plastic drum in produce a large amount of gas very easily, as long as gas is held excessively in the bucket, very easily take place the drum cover, lead to the transportation quality accident, so not only make danger coefficient increase in the transportation, also make the producer face certain economic loss. Secondly, in different temperature, atmospheric pressure and different height above sea level areas, the inside and outside atmospheric pressure difference of filling product such as plastic drum is unstable, very easily produces and inhales flat or the drum lid problem in the storage process, also can produce certain influence to product quality.

SUMMERY OF THE UTILITY MODEL

The utility model discloses to the technical problem that above-mentioned packing plastic drum exists in the aspect of storing, provide a reasonable in design, simple structure, be convenient for the combination stack and can balance the plastic drum that has the function of preventing expanding of inside and outside pressure differential.

In order to achieve the above object, the present invention adopts the technical scheme that the plastic barrel with anti-expansion function comprises a barrel body and a barrel cover, wherein a sealing hole is arranged at an eccentric position on the barrel cover, a sealing cover and a sealing valve body are arranged in the sealing hole, a first-stage groove and a second-stage groove are arranged at the top of the barrel cover, the groove diameter of the first-stage groove is larger than that of the second-stage groove, a stepped bulge which can be matched with the first-stage groove and the second-stage groove is arranged at the bottom of the barrel body, the sealing valve body is a folding valve body, the folding valve body comprises a horizontal part, a first connecting part and a second connecting part which are connected in sequence, a first easy-pull ring assembly and a second easy-pull ring assembly are respectively arranged on the sealing cover and the folding valve body, the first easy-pull ring assembly comprises two symmetrically arranged inferior arc holes and a superior arc hole between the two inferior arc holes, the lower surface of sealing cap is located and is provided with curved strengthening rib between major arc hole and the inferior arc hole, the both ends of strengthening rib are provided with the portion of bending, the portion of bending is located the tip in a major arc hole, second easy-to-draw ring subassembly includes pull ring and gasket, the center of gasket is provided with the breathing ring post that link up from top to bottom, the top of breathing ring post is provided with the breathing membrane, the gasket sets up on the inner wall of second connecting portion, the vertical upwards of second connecting portion and be provided with the air channel that can contact with the bottom surface of sealing cap at its top, the sealing cap just is the inner ring post and the outer ring post of inside and outside setting including setting up in its bottom surface, outer ring post and second connecting portion threaded connection.

Preferably, the top of the breathing ring column is provided with a hot pressing groove and a plurality of dovetail grooves distributed on the edge of the hot pressing groove in a circular array.

Preferably, the bottom of the horizontal part is provided with a mounting ring, the edge of the bottom of the mounting ring is uniformly provided with a plurality of protrusions vertical to the side surface of the mounting ring, the barrel cover is provided with a mounting groove matched with the mounting ring, and the side surface of the mounting groove is provided with a groove matched with the protrusions.

Preferably, the mounting ring is arranged on the outer side of the first connecting portion, a plurality of pressing sheets are arranged between the mounting ring and the first connecting portion, and a pressing sheet groove inserted with the pressing sheets is formed in the barrel cover.

Compared with the prior art, the utility model discloses an advantage lies in with positive effect:

the utility model provides a plastic barrel with anti-expansion function, the ladder projection can be matched with the first-stage groove and the second-stage groove, thereby facilitating the two plastic barrels to be stacked up and down, and the stability is good; under the condition that the pressure inside and outside the plastic barrel generates larger pressure difference, the gas in the plastic barrel can selectively pass through the breathing membrane and escape through the vent groove, so that the aim of balancing the pressure inside and outside the plastic barrel is fulfilled; the folding valve body is utilized to provide two working states, the utilization rate is high, meanwhile, the air tightness of the folding valve body in the working states is good, the folding valve body is reasonable in design, simple in structure and suitable for large-scale popularization.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive labor.

FIG. 1 is a sectional view of a plastic bucket with an anti-expansion function according to an embodiment;

FIG. 2 is an isometric view of a plastic bucket with an anti-bulge feature according to an exemplary embodiment;

FIG. 3 is an enlarged schematic view of the structure B in FIG. 1 according to an exemplary embodiment;

FIG. 4 is an enlarged schematic view of the structure A in FIG. 3 according to an exemplary embodiment;

FIG. 5 is a schematic diagram illustrating the operation of the sealing cap and the folding valve body according to the embodiment;

FIG. 6 is a bottom view of the closure cap according to one embodiment;

FIG. 7 is a top view of a folding valve body according to an embodiment;

in the above figures, 1, a sealing cover; 1a, an inner ring column; 1b, an outer ring column; 2. folding the valve body; 21. a horizontal portion; 211. a mounting ring; 212. a protrusion; 213. tabletting; 22. a first connection portion; 23. a second connecting portion; 231. a vent channel; 3. a first ring-pull-ring assembly; 31. a hole with inferior arc; 32. a major arc hole; 33. reinforcing ribs; 331. a bending part; 4. a second ring assembly; 41. a pull ring; 42. sealing the sheet; 5. a breathing circle column; 51. hot pressing the groove; 52. a dovetail groove; 6. a respiratory membrane; 7. a barrel body; 71. a step protrusion; 8. a barrel cover; 81. a first stage groove; 82. a second stage groove; 83. mounting grooves; 84. and a pressing sheet groove.

Detailed Description

In order to make the above objects, features and advantages of the present invention more clearly understood, the present invention will be further described with reference to the accompanying drawings and examples. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict. For convenience of description, the words "upper", "lower", "left" and "right" used herein refer to the same directions as the drawings, and do not limit the structure.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the present invention is not limited to the limitations of the specific embodiments of the present disclosure.

Embodiment, as shown in fig. 1-7, the utility model provides a pair of plastic drum with anti-swell function, including staving 7 and bung 8, eccentric position on the bung 8 is provided with the seal hole, is provided with sealing cover 1 and sealed valve body (folding valve body 2) in the seal hole, and the top of bung 8 is provided with first order groove 81 and second level groove 82, and the groove footpath of first order groove 81 is greater than the groove footpath of second level groove 82, and the bottom of staving 7 is provided with can with first order groove and second level groove complex ladder arch 71. The stepped bulges of the plastic barrels stacked up and down are correspondingly butted with the first-stage groove and the second-stage groove, and the stability of two plastic barrels adjacent up and down can be effectively improved by adopting a two-stage structure.

Further, the sealing valve body is a folding valve body 2, the folding valve body 2 comprises a horizontal part 21, a first connecting part 22 and a second connecting part 23 which are connected in sequence, the sealing cover 1 comprises an inner ring column 1a and an outer ring column 1b which are arranged on the lower bottom surface of the sealing cover and are arranged inside and outside, and the outer ring column 1b is in threaded connection with the second connecting part 23. The folding valve body has two working states, as shown in fig. 6, in the sealing state, the horizontal part 21 is flatly pressed in the sealing groove on the barrel cover, and the first connecting part 22 and the second connecting part 23 are in the contraction state and are completely below the cover surface of the barrel cover, namely, are located in the barrel body; in the activated position, as shown in fig. 7, the horizontal portion 21 is still pressed against the lid, but the first connecting portion 22 and the second connecting portion 23 are pulled by the sealing cover 1 to be in an extended state and are all located above the lid, i.e. outside the bucket body, and are used as a pouring spout to lift the container into another container. In order to improve the utilization ratio of the device, the utility model provides a folding valve body 2 adopts the EVA plastics. The EVA plastic is formed by copolymerizing ethylene and acetic acid, has the advantages of oxidation resistance, good flexibility, impact resistance and the like, can increase the expansion and contraction conversion times of the folding valve body 2, and improves the utilization rate of the device.

Still further, a first easy-to-draw ring assembly 3 and a second easy-to-draw ring assembly 4 are respectively arranged on the sealing cover 1 and the folding valve body 2, the first easy-to-draw ring assembly 3 comprises two symmetrically arranged minor arc holes 31 and a major arc hole 32 positioned between the two minor arc holes, an arc-shaped reinforcing rib 33 is arranged between the major arc hole 32 and the minor arc hole 31 on the lower surface of the sealing cover, bending portions 331 are arranged at two ends of the reinforcing rib, the bending portions 331 are positioned at the end portions of the major arc holes, the second easy-to-draw ring assembly 4 comprises a pull ring 41 and a sealing sheet 42, a breathing ring column 5 which is communicated up and down is arranged at the center of the sealing sheet 42, a breathing film 6 is arranged in the hot pressing groove 51, the sealing sheet 42 is arranged on the inner wall of the second connecting portion 23, and the second connecting portion 23 is vertically upward and is provided with a. Wherein, the inner wall of each minor arc hole 31 is provided with a plurality of hot melting connection points which can be torn, and the major arc hole of the first ring pull assembly 3 and one of the minor arc holes form a pull ring body which can be turned upwards, and the folding valve body can be lifted to the stretching state as shown in fig. 7 by pulling the pull ring body; simultaneously, the reinforcing rib's that this device provided portion 331 of bending can improve rather than the shear strength of direct connection's inferior arc hole tip, can effectively avoid tearing excessively and pull the ring body and directly pull off from the closing cap and influence the use. The second ring-pull assembly 4 can be directly torn off from the inner wall of the second connecting part to form a through hole which is through from inside to outside. In this apparatus, the breathing membrane 6 is hot-pressed and ironed in the hot-pressing tank 51, and the breathing membrane 6 is made of polytetrafluoroethylene. The breathing membrane can allow air to pass freely, but oil or other liquid inside and outside the plastic barrel cannot permeate through the breathing membrane, and the gas passing through the breathing membrane 6 rises along the inner wall of the breathing ring column to between the inner ring column 1a and the outer ring column 1b and escapes through the gap between the vent groove 231 and the top of the cover body. Therefore, under the condition that the pressure difference between the inside and the outside of the plastic barrel is large, the air in the plastic barrel can selectively pass through the breathing membrane 6 and escape through the vent groove 231, the purpose of balancing the pressure of the inside and the outside is automatically realized, and the phenomena of bulging cover and shrivelled barrel are avoided.

In order to improve the sealed effect of this device, the utility model discloses be provided with collar 211 in the bottom of horizontal part 21 and be used for cooperating with the bung, simultaneously, evenly be provided with a plurality of rather than side vertically protruding 212 at the bottom edge of collar, be provided with on the bung can with collar complex mounting groove, the side of mounting groove be provided with protruding complex recess. The bulge 212 is matched and clamped with a groove arranged at a corresponding position on the barrel cover, so that the folding valve body is ensured not to be pulled away from the barrel cover in the process of stretching, contracting and deforming.

Further, the installation ring 211 provided by the device is arranged at the outer side of the first connection part, and a plurality of pressing sheets 213 are arranged between the installation ring 211 and the first connection part. The mounting ring sets up in the outside of first connecting portion, is provided with a plurality of preforming between mounting ring and the first connecting portion, is provided with the preforming groove of pegging graft with the preforming on the bung. Utilize the preforming not only can avoid folding valve body to warp excessively can also form a better seal structure of wireless connection with the bung, avoid the bucket in the material to leak.

In order to improve the stability of breathing the membrane, the utility model provides a breathe ring post 5's top is provided with hot-pressing groove 51 and a plurality of dovetail 52 that are circular array and distribute at the hot-pressing groove edge, breathes the marginal portion direct hot pressing of membrane 6 in dovetail 52, has effectively improved the stability of breathing membrane and breathing ring post connection.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in other forms, and any person skilled in the art may use the above-mentioned technical contents to change or modify the equivalent embodiment into equivalent changes and apply to other fields, but any simple modification, equivalent change and modification made to the above embodiments according to the technical matters of the present invention will still fall within the protection scope of the technical solution of the present invention.

Claims

1. A plastic barrel with an anti-expansion function comprises a barrel body and a barrel cover, wherein a sealing hole is formed in an eccentric position on the barrel cover, a sealing cover and a sealing valve body are arranged in the sealing hole, and the plastic barrel is characterized in that a first-stage groove and a second-stage groove are formed in the top of the barrel cover, the groove diameter of the first-stage groove is larger than that of the second-stage groove, a stepped bulge matched with the first-stage groove and the second-stage groove is formed in the bottom of the barrel body, the sealing valve body is a folding valve body, the folding valve body comprises a horizontal part, a first connecting part and a second connecting part which are sequentially connected, a first easy-pull ring assembly and a second easy-pull ring assembly are respectively arranged on the sealing cover and the folding valve body, the first easy-pull ring assembly comprises two symmetrically-arranged inferior arc holes and a superior arc hole located between the two inferior arc holes, and an arc-shaped reinforcing rib is arranged on the lower surface of the sealing cover and located between the, the both ends of strengthening rib are provided with the portion of bending, the portion of bending is located the tip of a major arc hole, second easy-to-draw ring subassembly includes pull ring and gasket, the center of gasket is provided with the breathing ring post that link up from top to bottom, the top of breathing ring post is provided with the breathing membrane, the gasket sets up on the inner wall of second connecting portion, the vertical upwards of second connecting portion and be provided with the air channel that can contact with the bottom surface of seal closure at its top, the seal closure just is the inner ring post and the outer ring post of inside and outside setting including setting up at its bottom surface, outer ring post and second connecting portion threaded connection.

2. The plastic bucket with the anti-expansion function as claimed in claim 1, wherein the top of the breathing ring column is provided with a hot pressing groove and a plurality of dovetail grooves distributed on the edge of the hot pressing groove in a circular array.

3. The plastic bucket with the anti-expansion function as claimed in claim 2, wherein the bottom of the horizontal part is provided with a mounting ring, the bottom edge of the mounting ring is uniformly provided with a plurality of protrusions perpendicular to the side surface of the mounting ring, the bucket cover is provided with a mounting groove capable of being matched with the mounting ring, and the side surface of the mounting groove is provided with a groove matched with the protrusions.

4. The plastic bucket with an anti-expansion function as claimed in claim 3, wherein the mounting ring is arranged outside the first connecting portion, a plurality of pressing sheets are arranged between the mounting ring and the first connecting portion, and the bucket cover is provided with a pressing sheet groove inserted with the pressing sheets.