CN209023421U - A kind of container closure - Google Patents

Abstract

The utility model provides a kind of container closure comprising bung, positioning plug, sealing-plug, the first sealing ring, the second sealing ring, immersion tube and removal element.Bung includes main body, centre bore, location hole and bolt indentation, and main body is located at the internal screw thread of upper inside wall with the external screw thread positioned at periphery, and the first sealing ring is mounted on externally threaded top；Externally threaded lower section is equipped with a groove, and the second sealing ring is placed in the groove.When bung is mounted on vessel port by the external screw thread of main body, first sealing ring provides the leakproofness between container closure and the outer surface of vessel port, second sealing ring provides the leakproofness between container closure and the inner wall of vessel port, thus the container closure and vessel port form double sealing structure, it thus can be realized better seal, the gas that the chemicals that air is mixed into inside container inside and reduction container volatilizes be greatly decreased and is escaped by the junction of bung and vessel port.

Description

A kind of container closure

Technical field

The utility model relates to a kind of container closures, seal more specifically to a kind of container with double sealing structure Mouthful.

Background technique

Liquid chemicals are widely used in all trades and professions.These usual liquid chemicals are expensive, and human contact is easy again It causes damages, in addition, these liquid chemicals also have very high purity and purity requirements, therefore, whether stores, transports Defeated, injection or extraction operation, especially injection and extraction operation, it should be specifically noted that ensure container, such as the good sealing property of bucket, The leakage of liquid chemicals or environmental contaminants is avoided to enter contaminating chemicals in bucket.It is oxidized easily especially for some Liquid chemicals, it is also necessary to avoid air from entering in bucket, therefore the good sealing property of bucket then seems and is even more important.

Application No. is 201820691252.7 patent applications to provide a kind of container closure comprising bung, positioning plug, Sealing-plug, sealing ring, immersion tube and element is removed, bung includes main body, centre bore, location hole and bolt indentation, circular Sealing ring is located at the externally threaded top of main body periphery, and when bung is mounted at vessel port, sealing ring is located at vessel port Outer surface, sealing ring provide the leakproofness between bung and the outer surface of vessel port, can be avoided particulate pollutant and enter container The leakage of liquid chemicals inside internal and container.But the leakproofness at the bung and vessel port is still not up to best, It is not able to satisfy higher application requirement, because when being injected into container by vessel port or extracting liquid chemicals, It is possible that large quantity of air is mixed into inside container by bung and vessel port junction or container interior liquid chemicals is waved Thus the gas of sending may also escape, air, which is mixed into inside container, may aoxidize liquid chemicals, its purity is caused to decline, and The chemicals gas of evolution then endangers the health of operator.

Accordingly, it is desirable to provide a kind of container closure, when storage, transport especially inject and extract liquid chemicals, energy Enough ensure itself and the good sealing property at vessel port, can not only prevent particulate pollutant from entering inside container, preventing liquefied The leakage of product, moreover it is possible to air be greatly decreased and be mixed into the ease for inside container and reducing the gas that liquid chemicals volatilize in container Out.

Utility model content

It can not achieve its optimal seal with vessel port to solve the bung of existing container closure, lead to large quantity of air The gas that the liquid chemicals inside container or inside container volatilize is mixed into be escaped by the junction of bung and vessel port, this Utility model provides a kind of container closure that double sealing structure can be formed at vessel port.

The container closure includes bung, positioning plug, sealing-plug, the first sealing ring, the second sealing ring, immersion tube and removal Element.

The bung includes main body, centre bore, location hole and bolt indentation.

The main body has the external screw thread positioned at periphery and an internal screw thread positioned at upper inside wall, it is described it is externally threaded under Side is equipped with a groove.

The described first sealing ring installation externally threaded top, second sealing ring are mounted on described recessed In slot.

The bung is mounted on vessel port by the external screw thread of the main body, and first sealing ring provides institute Leakproofness between the outer surface of the container closure and vessel port stated, second sealing ring provide the container closure with Leakproofness between the inner wall of vessel port.

The centre bore is located at the lower section of the internal screw thread of the main body, and the inside of the centre bore is equipped in hole All screw threads.

The location hole is cylinder, and is located at the outer rim of the body top.

The structure of the bolt indentation and every kind of liquid chemicals are uniquely corresponding.

The described element that removes has a bolt with the bolt indentation structure unique match, and with the main body Female thread is at threaded connection.

The positioning plug is cylinder, is inserted in the positioning hole of the body top, the positioning plug Color and every kind of liquid chemicals it is uniquely corresponding.The positioning plug, which plays, to be quickly recognized and the bolt indentation knot The effect of the removal element of structure unique match, and indicate the installation of the removal element.

The sealing-plug includes periphery screw thread and opposite convex block on its interior, by the periphery screw thread and The hole inner circumferential thread seal of the centre bore connects, and the convex block makes the installation and removal of the sealing-plug more square Just.

The immersion tube welding is connected in below the centre bore, and it is communicated with the centre bore of the bung, institute The lower end for the immersion tube stated extends downwardly the bottom for reaching container, for extracting or injecting into container liquefied from container Product；The immersion tube upper end is set there are two opposite through-hole, to be connected to inside container with pumping system, be held convenient for draining Liquid chemicals in device.

Container closure provided by the utility model can form double sealing structure with vessel port, it is thus possible to realize more preferable Sealing, air is greatly decreased and is mixed into gas that the chemicals inside container and inside reduction container volatilizes by bung and container The junction of opening escapes.

Detailed description of the invention

In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor Under, it is also possible to obtain other drawings based on these drawings.

Fig. 1 is the main view (curve lower left) and median plane cross-sectional view (curve of container closure provided by the utility model Upper right side) constitutional diagram

When Fig. 2 is that container closure provided by the utility model is mounted at vessel port, the full sectional view and container of container The constitutional diagram of the main view of sealing

Fig. 3 is the structural schematic diagram of the sealing-plug of container closure provided by the utility model, wherein in Fig. 1-3:

1- bung, 11- main body, 111- external screw thread, 112- internal screw thread, 113- groove, 12- centre bore, the hole 121- inner circumferential spiral shell Line, 13- location hole, 2- positioning plug, 3- sealing-plug, the periphery 31- screw thread, 32- convex block, the first sealing ring of 4-, 5- immersion tube, 51- through-hole, the second sealing ring of 6-, 10- container, vessel port -100.

Specific embodiment

In order to make those skilled in the art better understand the technical solution of the utility model, 1-3 with reference to the accompanying drawing The utility model is described in further detail with specific embodiment.

Container closure provided by the utility model is by bung 1, positioning plug 2, sealing-plug 3, the first sealing ring 4, immersion tube 5, the second sealing ring 6 and removal element composition (not shown in figures).

Bung 1 includes main body 11, centre bore 12, location hole 13 and bolt indentation.

Main body 11 has the external screw thread 111 positioned at periphery and an internal screw thread 112 positioned at upper inside wall, under external screw thread 111 Side is equipped with groove 113.

First sealing ring 4 installs the top of external screw thread 111, and the second sealing ring 6 is mounted in groove 113.

When bung 1 is mounted at the vessel port 100 of container 10 by the external screw thread 111 of main body 11, the first sealing ring 4 exists The leakproofness between container closure and the outer surface of vessel port 100 is provided, the second sealing ring 6 provides container closure and vessel port Leakproofness between 100 inner wall.

Centre bore 12 is located at the lower section of the internal screw thread 112 of main body 11, and hole inner circumferential screw thread 121 is equipped with inside centre bore 12.

Location hole 13 is cylinder, and is located at the outer rim on 11 top of main body.

The structure of bolt indentation is such as application No. is 201820691252.7 or application No. is 201821576537.2 patents Disclosed in application, and the structure of bolt indentation and every kind of liquid chemicals are uniquely corresponding.

Element is removed with the bolt with bolt indentation structure unique match, and forms spiral shell with the internal screw thread of main body 11 112 Line connection.

Positioning plug 2 be cylinder, be inserted in the location hole 13 on 11 top of main body, the color of positioning plug 2 with every kind Liquid chemicals uniquely correspond to.Positioning plug 2, which plays, to be quickly recognized and the removal of the bolt indentation structure matching of main body 11 member The effect of part, and indicate to remove the installation of element.

Sealing-plug 3 includes periphery screw thread 31 and opposite convex block 32 on its interior, passes through periphery screw thread 31 and center The hole inner circumferential screw thread 121 in hole 12 is tightly connected, and convex block 32 makes the installation and removal of sealing-plug 3 more convenient.

The welding of immersion tube 5 is connected in the lower section of centre bore 12, and it is communicated with the centre bore 12 of bung 1, the lower end of immersion tube 5 to Under extend up to the bottom of container 10, for from being extracted in container 10 or inject liquid chemicals into container 10.Immersion tube 5 Upper end is set there are two opposite through-hole 51,10 inside of container is connected to pumping system, convenient for draining the liquid in container 10 Chemicals.

A groove 113 is arranged by the lower section of the external screw thread 111 in main body 11 in container closure provided by the utility model, And the second sealing ring 6 is placed in groove 113.Therefore, which provides itself and container 10 except through the first sealing ring 4 Vessel port 100 outer surface between leakproofness, also by the second sealing ring 6 provide itself and container 10 vessel port 100 Inner wall between leakproofness, i.e., form double sealing structure between the container closure and vessel port 100, be capable of providing better seal Property, air can be greatly decreased and be mixed into the inside of container 10 or reduce gas that the chemicals inside container 10 volatilizes by bung and appearance The junction evolution of device opening 100, to reduce the pollution of chemicals, waste, and avoids being detrimental to health.

The foregoing description of the disclosed embodiments can be realized professional and technical personnel in the field or using originally practical new Type.Various modifications to these embodiments will be readily apparent to those skilled in the art, and determine herein The General Principle of justice can be realized in other embodiments without departing from the spirit or scope of the present utility model.Cause This, the present invention will not be limited to the embodiments shown herein, and is to fit to and principles disclosed herein The widest scope consistent with inventive features.

Claims (10)

1. a kind of container closure, including bung, positioning plug, sealing-plug, the first sealing ring, immersion tube and removal element, described Bung include main body, centre bore, location hole and bolt indentation, the main body have positioned at periphery external screw thread and be located at interior The internal screw thread on wall top, it is characterised in that:

The container closure further includes the second sealing ring；

The externally threaded lower section is equipped with a groove, and second sealing ring is placed in the groove.

2. container closure according to claim 1, which is characterized in that the external screw thread that the bung passes through the main body It is mounted at vessel port, the first sealing ring installation externally threaded top.

3. container closure according to claim 2, which is characterized in that the external screw thread that the bung passes through the main body When being mounted on vessel port, first sealing ring provides the sealing between the outer surface of the container closure and vessel port Property, second sealing ring provides the leakproofness between the inner wall of the container closure and vessel port.

4. container closure according to claim 1, which is characterized in that the centre bore is located at the interior spiral shell of the main body The lower section of line, and the inside of the centre bore is equipped with hole inner circumferential screw thread.

5. container closure according to claim 1, which is characterized in that the location hole is cylinder, and is located at described Body top outer rim.

6. container closure according to claim 1, which is characterized in that the removal element has recessed with the bolt The bolt of slot structure unique match, and with the female thread of the main body at threaded connection.

7. container closure according to claim 1, which is characterized in that the positioning plug is cylinder, is inserted in institute The positioning hole for the body top stated, the color of the positioning plug and every kind of liquid chemicals are uniquely corresponding.

8. container closure according to claim 1, which is characterized in that the sealing-plug includes periphery screw thread and is located at it Internal opposite convex block, is connected by the periphery screw thread with the hole inner circumferential thread seal of the centre bore.

9. container closure according to claim 1, which is characterized in that the immersion tube welding is connected in the centre bore Lower section, and it is communicated with the centre bore, and the lower end of the immersion tube extends downwardly the bottom for reaching container, and described Immersion tube upper end set there are two opposite through-hole.

10. a kind of appearance with the matched vessel port of container closure described in any claim in claim 1~9 Device, which is characterized in that the inner wall of the vessel port has the matched interior spiral shell of external thread structure of the main body of the bung Line.