CN203601773U - Tank structure - Google Patents

Abstract

A can structure is suitable for direct vacuum packaging, and includes a can unit, an inner cover unit, and an outer cover unit. The inner cover unit includes an inner cover that is sealed with a plug cover on the top opening of the can unit, a sealing gasket that is airtightly pressed between the can unit and the inner cover, and an airtight member installed on the air hole of the inner cover. The airtight member can be changed between an airtight position that airtightly closes the air hole, and an airtight position that is elastically pulled upward to expose the air hole to the outside and release air. Through the structural design of the can unit, the inner cover unit, and the outer cover unit, the can structure of the utility model can be directly used for vacuum packaging of food materials, and can be reused. It is a can structure design that is convenient for vacuum packaging and quite environmentally friendly.

Description

Tank structure

technical field

The utility model relates to a tank body, in particular to a tank body structure which can be used for vacuum packaging.

Background technique

At present, in the vacuum packaging of food, taking the packaging of tea as an example, the tea is first packed into the bag, and then the bag is vacuum-packed, and then the vacuum-packed tea bag is placed in the tea bag. Cans and other containers are stored and sold, so for tea farmers, the packaging and sales of tea need to prepare the vacuum packaging bag and the container for the vacuum packaging bag at the same time, and when the consumer opens the bag, it will be released. When the bag body is in a vacuum state, the bag body can no longer vacuum-preserve the food materials, and its reusability is low. This problem also occurs in the packaging of other food materials. In view of this, if containers such as tea cans can be designed to be directly vacuumized after containing food, and the food is directly vacuum-preserved in the container, and the container can be repeatedly vacuumed, it will be helpful. It is more environmentally friendly to reduce the waste of packaging consumables and packaging costs.

Contents of the invention

The purpose of the utility model is to provide a tank body structure that can be directly used for vacuum packaging.

The tank body structure of the utility model is suitable for direct vacuum packaging treatment, and includes a tank body unit defining an accommodating space with an opening facing upwards, a plug mounted on the inner cover unit of the tank body unit, and a cover The cover unit is outside the tank body unit. The inner cover unit includes an inner cover plugged on the top end of the tank body unit to seal the opening of the accommodating space, an inner cover sleeved on the inner cover body and airtightly against the tank body unit and the inner cover The sealing gasket between the bodies, and an elastically deformable airtight part installed on the inner cover body. The inner cover body has an air hole that penetrates up and down and communicates with the accommodating space. It is installed in the air hole, and can be changed between an airtight position where the air hole is hermetically sealed, and a deflated position where the air hole is exposed and leaked by being elastically pulled upwards and moving up relative to the inner cover. The outer cover unit is mounted on the outside of the tank body unit by pressing the inner cover body against the cover of the tank body unit.

The tank body structure described in the utility model, the tank body unit includes an outer tank body defining the accommodating space, the sealing gasket is limited and stacked against the top surface of the outer tank body, and the inner cover has a downward air The abutment ring portion tightly pressed against the sealing gasket, an extension ring portion extending downward from the abutment ring portion into the accommodating space, and a body fixed at the bottom end of the extension ring portion and pierced The wall portion of the cover with the air hole.

The tank body structure described in the utility model, the outer tank body has a tank body section extending up and down with the opening facing upwards, and a locking section extending upward from the top of the tank body section and having an outer diameter smaller than the outer diameter of the tank body section, And the outer peripheral surface of the locking section radially protrudes from a plurality of outer locking protrusions distributed around its periphery at intervals, and the outer cover unit includes a screw lock cover outside the locking section and presses down against the abutting section. Close to the locking lid of the ring part, the internal peripheral surface of the locking lid is radially protruded with a plurality of inner locking protrusions distributed around its periphery at intervals, and the locking lid can rotate relative to the outer tank body to make The inner locking convex part and the outer locking convex part are locked up and down relative to each other.

The tank body structure of the utility model, the tank body unit includes an outer tank body, and an inner tank body installed and fixed in the outer tank body and defining the accommodating space. On the top end surface of the can body unit, the inner cover has an abutment ring portion which is airtightly pressed downward against the sealing gasket, and an extension ring portion extending downward from the abutment ring portion into the accommodating space , and a cover wall portion that is integrally connected to the bottom end of the extension ring portion and pierced with the air hole.

According to the tank structure of the utility model, the outer tank body has a tank body section with an opening facing upwards and surrounding the radially outer side of the inner tank body at intervals, and a body section extending upward from the top of the tank body section and having an outer diameter smaller than that of the tank body. The outer diameter of the body is sleeved and fixed on the locking section at the top of the inner tank body, and the outer peripheral surface of the locking section is radially protruded with a plurality of outer locking protrusions distributed around its periphery at intervals. The outer cover unit includes A screw lock cover is placed outside the locking section and pressed down against the locking cover of the abutment ring, and the inner peripheral surface of the locking cover is radially protruded with a plurality of inner locks distributed around its periphery at intervals and the locking lid can rotate relative to the outer tank body so that the inner locking protrusion and the outer locking protrusion are locked up and down relative to each other.

According to the tank structure of the utility model, the outer tank body also has a radially inward and downward bending extending into the inner tank body from the top of the locking section, and is clamped radially inwardly and outwardly with the locking section. The covering section of the top end of the inner can body.

According to the tank structure of the utility model, the locking cover has a top wall that presses down against the abutment ring, and the outer cover unit also includes a mounting cover outside the locking cover. A cover body, the outer cover body has an outer top wall part spaced above the inner top wall part, and the outer cover unit also includes a supporting piece that supports up and down between the inner top wall part and the outer top wall part.

According to the tank structure of the utility model, the airtight part has an insertion part that can be displaced up and down and penetrates the air hole downwards, and an air hole that protrudes radially from the outer peripheral surface of the insertion part and is located above the air hole. A sealing part, and a limiting part protruding radially from the outer peripheral surface of the insertion part and located below the air hole, when the air-tight part is in the air-tight position, the air-tight part is to seal the air hole downwards The top end is open, and when the air-tight part is at the deflated position, the air-tight part is moved up and separated from the air hole.

In the tank body structure described in the utility model, the airtight part and the limiting part are in the shape of an inverted cone gradually expanding upwards.

According to the tank structure of the utility model, the inner cover unit further includes a lifting member installed and fixed on the cover wall of the inner cover.

The beneficial effect of the utility model is that: through the structural design of the can body unit, the inner cover unit and the outer cover unit, the tank body structure of the utility model can be directly used for the vacuum packaging operation of food materials, and can be used repeatedly. A tank structure design that is convenient for vacuum packaging and is quite environmentally friendly.

Description of drawings

Fig. 1 is a three-dimensional exploded view of a preferred embodiment of the utility model tank structure;

Figure 2 is a side sectional view of the preferred embodiment;

Fig. 3 is a partially enlarged view of Fig. 2, and illustrates the situation when an airtight part is located at an airtight position;

Fig. 4 is a partial enlarged view similar to Fig. 3, illustrating the condition of the air seal in a deflated position.

Detailed ways

Below in conjunction with accompanying drawing and embodiment the utility model is described in detail.

As shown in Figures 1, 2, and 3, the preferred embodiment of the tank structure of the present invention is suitable for directly placing food in a vacuum packaging device for vacuum packaging after the food is contained, and the tank structure can be used for a long time Keep under negative pressure.

The tank structure comprises a tank body unit 3 that defines an accommodating space 30 with an opening upward, and a detachable airtight plug is mounted on the top end of the tank unit 3 to cover the opening of the accommodating space 30. An inner cover unit 4 and a cover covering the inner cover unit 4 are mounted on the outer cover unit 5 outside the top end section of the tank body unit 3 .

The can body unit 3 includes an outer can body 31 with an opening facing upward, and an inner can body 32 accommodated and fixed in the outer can body 31 and defining the accommodating space 30 . The outer can body 31 has a can body section 311 extending up and down with the opening facing upwards and surrounding the inner can body 32 radially outside at intervals, and a can body section 311 extending upwards from the top of the can body section 311 and having an outer diameter smaller than that of the can body section 311. The locking section 312 is sleeved and fixed on the outer peripheral surface of the top end of the inner tank body 32 , and a coating is extended radially inward from the top of the locking section 312 and bent downward into the inner tank body 32 . segment 314, and the covering segment 314 is clamped radially inwardly and outwardly with the locking segment 312 and fixed on the top end of the inner tank body 32, so that the inner tank body 32 is installed and limited in the outer tank body 31, and the lock A plurality of outer locking protrusions 313 protrude radially from the outer peripheral surface of the connecting section 312 and are spaced around its peripheral edge.

In this embodiment, the outer can body 31 can be made of metal or plastic, and can be made of light-transmitting plastic, while the inner can body 32 can be made of metal, plastic or paper.

The inner cover unit 4 includes an inner cover body 41 plugged on the top end of the tank body unit 3 to seal the opening of the accommodating space 30, a sealing gasket 42 sleeved and fixed outside the inner cover body 41, an installation A lifting member 43 fixed on the inner cover 41 and an airtight member 44 penetrating and installed on the inner cover 41 . The inner cover 41 has a horizontal plate-shaped cover wall 411, a ring-shaped extension ring 413 that is integrally fixed on the periphery of the cover wall 411 and extends upwards, and a diameter extending from the top edge of the extension ring 413. The abutment ring portion 414 is bent and extended outward, and the cover wall portion 411 is pierced with an air hole 412 penetrating and communicating with the accommodating space 30 up and down.

The sealing gasket 42 is sleeved and fixed on the top of the extension ring part 413, and the limit is against the bottom of the abutment ring part 414, and the lifting part 43 is installed and fixed on the cover wall part 411 by its bottom end, and Standing on the cover wall 411 , it can be pulled to take the inner cover 41 in conjunction.

The airtight member 44 is made of elastically stretchable material, such as silicone or rubber. The airtight part 44 is inserted and limited in the air hole 412 so as to be displaceable up and down, has an insertion portion 441 extending up and down through the air hole 412, and a radially protruding on the surface of the middle section of the insertion portion 441 and is located in the air hole 412. An airtight portion 442 above the cover wall portion 411 , and a limiting portion 443 radially protruding from the surface of the bottom section of the insertion portion 441 and located below the cover wall portion 411 . The outer diameter of the insertion portion 441 is smaller than the diameter of the air hole 412, the distance between the limiting portion 443 and the airtight portion 442 is greater than the thickness of the cover wall portion 411, and the airtight portion 442 and the limiting portion 443 are formed by The diameter gradually expands from bottom to top in an inverted cone shape, and the outer diameters of both are larger than the diameter of the air hole 412 .

As shown in Figures 2, 3, and 4, the airtight member 44 can be driven to move up and down relative to the inner cover 41 between an airtight position and a deflated position. When in the airtight position, the airtight member 44 The airtight portion 442 is plugged downward against the top end of the air hole 412 to airtightly close the opening at the top end of the air hole 412. When it is at the deflated position, the airtight portion 442 is elastically pulled upwards relative to the inner The cover 41 moves upwards away from the air hole 412 , so that the air hole 412 is exposed and communicated with the outside atmosphere.

The outer cover unit 5 includes a locking cover 51, an outer cover 52 covering and fixing the locking cover 51, and a support installed between the locking cover 51 and the outer cover 52. piece 53. The locking cover 51 has an inner top wall portion 511, an annular inner ring wall portion 512 extending downward from the inner top wall portion 511, and a plurality of inner ring wall portions 512 protruding from the inner ring wall portion 512. Inner locking protrusions 513 protrude radially from the peripheral surface and are spaced around the inner ring wall 512 . The outer cover 52 has an outer top wall portion 521 spaced above the inner top wall portion 511 , and an outer top wall portion 521 extending downward from the periphery of the outer top wall portion 521 and leaning against the outer peripheral surface of the inner ring wall portion 512 . The ring wall portion 522 , and a coating portion 523 that rolls radially inward from the bottom edge of the outer ring wall portion 522 and wraps on the bottom edge of the inner ring wall portion 512 . The support member 53 is in the shape of a ring extending up and down, and is positioned between the inner top wall portion 511 and the outer top wall portion 521 by supporting up and down.

When the tank body structure of the utility model is used for vacuum packaging food materials, the food material is first put into the accommodation space 30 of the tank body unit 3, and then the inner cover 41 is inserted downward into the accommodation space 30. Make the sealing gasket 42 lower limit and stack against the top edge of the covering section 314 of the outer tank body 31, then cover the outer cover unit 5 outside the locking section 312 of the outer tank body 31, and relatively The can body unit 3 rotates the outer cover unit 5, so that the inner locking protrusions 513 are locked up and down relative to the outer locking protrusions 313 respectively, so that the outer cover unit 5 moves down relative to the can body unit 3, so that The inner top wall portion 511 of the locking cover 51 presses down against the abutment ring portion 414 of the inner cover body 41, so that the abutment ring portion 414 and the cladding section 314 are relatively airtight up and down. Clamping against the gasket 42 completes the assembly of the tank structure.

At this time, the inner lid unit 4 and the can body unit 3 will remain in an airtight joint state due to the sealing gasket 42, while the outer lid unit 5 and the can body unit 3 will not be completely airtightly joined, That is to say, the space between the inner cover 41 and the outer cover 52 communicates with the outside atmosphere.

Finally, put the tank structure containing food into a vacuuming device for vacuuming treatment. In the normal state of not being vacuumed, the airtight member 44 can freely move up and down relative to the inner cover 41. Therefore, Under the action of negative pressure suction inside the vacuum equipment, in order to maintain pressure balance, the air in the accommodation space 30 will flow to a relatively low-pressure place, so the air-tight member 44 will be pushed upward to make the air The sealing member 44 changes to the deflated position, and is gradually drawn away through the air hole 412 , the gap between the outer cover unit 5 and the inner cover unit 4 , and the gap between the outer cover unit 5 and the tank body unit 3 .

When the vacuum reaches a certain degree of vacuum, the pumping action of the vacuum equipment can be closed. At this time, the airtight part 44 will fall down due to gravity, and the airtight part 442 will be stacked against the air hole. 412 at the top edge. At the moment when an atmospheric pressure is restored inside the vacuuming device, because the accommodating space 30 is in a negative pressure state relative to the space outside the inner cover 41, a negative pressure suction will be generated at the air hole 412, and the The airtight part 442 stacked against the top edge of the air hole 412 instantly sucks down to block the air hole 412, so that the airtight part 44 changes to the airtight position, thereby achieving the purpose of airtightly closing the accommodating space 30, and Because the negative pressure suction of the accommodating space 30 will continue to exist, the airtight member 44 will continue to be kept in the airtight position, so the negative pressure state in the accommodating space 30 can be maintained for a long time, and then the tank body can be reached. The purpose of the structure is to directly vacuum pack the ingredients.

After the vacuum packaging is completed, even if the outer cover unit 5 is opened, the inner cover unit 4 will still be firmly airtightly adsorbed and fixed to the can body unit 3 by the negative pressure in the accommodating space 30 . When taking the contained food material, the inserting portion 441 of the airtight member 44 can be elastically pulled upwards relative to the inner cover 41 to drive the airtight portion 442 upwards away from the air hole 412, so that the outside air Enter the accommodating space 30 through the air hole 412, and release the negative pressure state of the accommodating space 30. At this time, the inner cover 41 can be opened by pulling the lifting member 43 upwards. The opening of the accommodating space 30 is exposed so that food can be taken. And because all components of the tank body structure are not damaged, it can be reused for vacuum treatment to carry out vacuum packaging of food materials.

In this embodiment, the can body unit 3 and the outer cover unit 5 are designed as a double-layer structure, which can pass through the light-transmitting design of the outer can body 31 and the outer cover body 52, and cooperate with the inner can body 32 and The pattern or color design on the outer surface of the locking cover body 51 is used for advertising or to produce special visual effects, but it is not limited to this during implementation, and only a single-layer structure design can be used, that is, the inner tank is not used. Body 32 and the outer cover body 52 and the support member 53 .

To sum up, through the structural design of the can body unit 3, the inner cover unit 4 and the outer cover unit 5, the tank body structure of the present utility model can be directly used for the vacuum packaging operation of food materials, and the existing vacuum can be omitted. It is a packaging bag that is often used in operations, and the tank structure can be reused for vacuum packaging, with high reusability. It is a convenient and environmentally friendly tank structure design for vacuum packaging food. Therefore, can really reach the purpose of this utility model.

Claims (10)

1. a tank structure, be applicable to directly carry out vacuum packaging processing, this tank structure comprises a can body unit that defines an opening up accommodation space, a plug is loaded on cap unit within this can body unit, and a cover cap outside this can body unit outside cap unit, it is characterized in that: this interior cap unit comprises that a plug is loaded on this can body unit top ends and the interior lid of this accommodation space opening of cap seal, one is sheathed on the external and airtight tightening seal washer abutting against between this can body unit and this interior lid of this inner cap, and one be installed on this interior lid can elastic deformation gas seal member, this interior lid has one and runs through up and down the pore that is communicated with this accommodation space, this gas seal member is that airtight being installed in this pore spacingly worn in upper and lower embedding, and can be in the air-tight position of hermetic closed this pore, and one pulled by elasticity up and relatively move on this interior lid and make this pore expose disappointing losing heart between position to change, this outer cap unit is that this interior lid is compressed and is limited in ground, this can body unit cover cap and is installed on outside this can body unit.

2. tank structure as claimed in claim 1, it is characterized in that: this can body unit comprises an outer can body that defines this accommodation space, sealing packing ring is the spacing folded outer can body top end face that is against, this interior lid have one down airtight be pressed against sealing packing ring against ring portion, one from should down extending into the extension ring portion in this accommodation space against ring portion consubstantiality, and consubstantiality is fixed in this extension ring portion bottom and is equipped with the tegmental wall portion of this pore.

3. tank structure as claimed in claim 2, it is characterized in that: this outer can body has a upper downward-extension and opening up can body section, and one up extended and external diameter is less than the interlocking section of this can body section external diameter from this can body section top consubstantiality, and this interlocking section outer peripheral face be radially equipped with multiple outside its periphery is spaced apart interlocking protuberance, this outer cap unit comprises that a screw lock cover cap is also down pressed against this interlocking lid against ring portion outside this interlocking section, this interlocking lid inner peripheral surface be radially equipped with multiple within its periphery is spaced apart interlocking protuberance, and this interlocking lid can rotate and described interior interlocking protuberance upper and lower clip relative to described outer interlocking protuberance located relative to this outer can body.

4. tank structure as claimed in claim 1, it is characterized in that: this can body unit comprises an outer can body, an and interior can body that is mounted in this outer can body and defines this accommodation space, sealing packing ring is spacing folded this can body unit top end face that is against, this interior lid have one down airtight be pressed against sealing packing ring against ring portion, one from should down extending into the extension ring portion in this accommodation space against ring portion consubstantiality, and consubstantiality is fixed in this extension ring portion bottom and is equipped with the tegmental wall portion of this pore.

5. tank structure as claimed in claim 4, it is characterized in that: this outer can body has an opening up and spacer ring and be around in the can body section of this interior can body radial outside, and one up extended and external diameter is less than this can body section external diameter and is fixed by socket the interlocking section in this interior can body top ends from this can body section top consubstantiality, and this interlocking section outer peripheral face be radially equipped with multiple outside its periphery is spaced apart interlocking protuberance, this outer cap unit comprises that a screw lock cover cap is also down pressed against this interlocking lid against ring portion outside this interlocking section, this interlocking lid inner peripheral surface be radially equipped with multiple within its periphery is spaced apart interlocking protuberance, and this interlocking lid can rotate and described interior interlocking protuberance upper and lower clip relative to described outer interlocking protuberance located relative to this outer can body.

6. tank structure as claimed in claim 5, is characterized in that: this outer can body also there is one in this consubstantiality footpath, interlocking section top is yearned for and down bending extend in this interior can body, and with radially coated section of inside and outside clamping this interior can body top ends of this interlocking section.

7. the tank structure as described in claim 3 or 5, it is characterized in that: this interlocking lid has one and is down pressed against this against top wall portion within ring portion, this outer cap unit also comprise a mounting cup be placed on this interlocking lid outer outside lid, this outer cover has one and is located at interval at top wall portion outside this inner roof wall portion top, and this outer cap unit also comprises a strut member staying on up and down between this inner roof wall portion and this outer top wall portion.

8. the tank structure as described in claim 1,2 or 4, it is characterized in that: this gas seal member has one can down be arranged in to upper and lower displacement the cartridge part in this pore, an airtight portion that is radially based in this cartridge part outer peripheral face and is positioned at this pore top, an and limiting section that is radially based in this cartridge part outer peripheral face and is positioned at this pore below, in the time that this gas seal member is positioned at this air-tight position, this airtight portion is that down airtight stopper seals this pore top end opening, in the time that this gas seal member is positioned at this disappointing position, this airtight portion moves on being and departs from this pore.

9. tank structure as claimed in claim 8, is characterized in that: this airtight portion and this limiting section are to be all up the inverted cone shape of footpath expansion gradually.

10. the tank structure as described in claim 2 or 4, is characterized in that: this interior cap unit also comprises a lifting piece that is mounted on this tegmental wall portion of this interior lid.

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