CN216735666U

CN216735666U - Push type evacuating device

Info

Publication number: CN216735666U
Application number: CN202123092407.6U
Authority: CN
Inventors: 王侠飞
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-12-10
Filing date: 2021-12-10
Publication date: 2022-06-14
Anticipated expiration: 2031-12-10

Abstract

The utility model relates to a push type vacuum pumping device, which comprises a tank body, a sealing cover, a piston, a press cover, a sealing plug and an exhaust plug; wherein the sealing cover is arranged at one end of the tank body in a sealing way; the middle part of the sealing cover is arranged to protrude towards the inner side of the tank body, the bottom of the protruding part is provided with a first through hole, and the first through hole is provided with a sealing plug; the convex part of the sealing cover is also provided with a piston and a pressing cover, and the piston is positioned between the pressing cover and the sealing cover; a spring is arranged between the piston and the sealing cover; the sealing cover is also provided with a second through hole, and the second through hole is provided with an exhaust plug; through setting up sealed lid, piston, press the lid and the sealing plug to through the position relation of connection, realize reducing jar structure of internal gas pressure, be convenient for realize jar vacuum preservation of internal article.

Description

Push type evacuating device

Technical Field

The utility model relates to a vacuum apparatus field especially relates to a push type evacuating device.

Background

In daily life there are parts of the goods that need to be stored against moisture and insects, especially for some food products as well as for pharmaceuticals. In current food storage, a closed manner is often used, such as a sealed can including a resilient gasket. In the structure similar to a sealed tank, although the isolation of the environments inside and outside the tank can be realized, partial air remains in the tank in the process of opening and closing every time, and the storage effect and the storage time of the articles in the tank are greatly influenced. On the other hand, in the existing sealed tank, because the sealing effect needs to be ensured, the tank body needs to be tightly sealed after being used every time, more strength needs to be consumed, and the difficulty of opening is increased. There is therefore a need for a convenient in-can evacuation device.

Disclosure of Invention

The utility model aims at solving the defects of the prior art and providing a pressing type vacuumizing device.

In order to solve the above problem, the utility model adopts the following scheme:

a push type vacuum pumping device comprises a tank body, a sealing cover, a piston, a press cover, a sealing plug and an exhaust plug; wherein the sealing cover is arranged at one end of the tank body in a sealing way; the middle part of the sealing cover is arranged to protrude towards the inner side of the tank body, the bottom of the protruding part is provided with a first through hole, and the first through hole is provided with a sealing plug; the convex part of the sealing cover is also provided with a piston and a pressing cover, and the piston is positioned between the pressing cover and the sealing cover; a spring is arranged between the piston and the sealing cover; the sealing cover is also provided with a second through hole, and the second through hole is provided with an exhaust plug.

Furthermore, the sealing cover comprises a bottom cover and a top cover, wherein the top cover is clamped on the top cover; the bottom cover is connected with the tank body.

Further, the bottom cover comprises an outer ring, a first sliding cavity and a second sliding cavity; the outer ring is annular, and the first sliding cavity is arranged on the inner side of the outer ring; the sliding cavity II is arranged in the sliding cavity I, and the sliding cavity protrudes towards the inner part of the tank body; the pressing cover is arranged in the first sliding cavity in a sliding mode, and the piston is arranged in the second sliding cavity in a sliding mode; and a first through hole is formed in the bottom of the second sliding cavity and used for arranging a sealing plug.

Furthermore, the outer ring is composed of three annular tubular structures, and the axes of the three annular tubular structures are positioned on the same straight line; the two adjacent annular tubular structures are connected through an annular sheet structure; the annular sheet structure between the annular tubular structure on the outermost side and the annular tubular structure on the secondary outer side is provided with a raised hollow cylinder, the annular tubular structure on the innermost side is also provided with a hollow cylinder, the hollow cylinder on the annular tubular structure on the innermost side is raised towards the inner side, and the axis of the hollow cylinder is parallel to the axis of the annular tubular structure.

Further, the piston is integrally in a bottle cap shape, wherein one end of the opening of the piston faces the second sliding cavity, and the closed end faces the pressing cap; the outer edge of one end of the opening of the piston is in contact with the inner wall of the second sliding cavity.

Further, the top cover and the bottom cover are clamped; the edge of the top cover extends a portion toward the inside of the outer cover.

Furthermore, the pressing cover is in an upward convex arc surface shape, the edge of the pressing cover is in contact with the inner wall of the first sliding cavity, and the edge of the pressing cover is limited by the edge of the top cover.

Furthermore, a first spring is arranged between the piston and the second sliding cavity; the bottom of the sliding cavity II is provided with a cylindrical structure protruding towards the piston direction, one end of the spring I is sleeved outside the cylindrical structure, and the other end of the spring I is sleeved on the cylindrical structure protruding out of the piston; a first through hole is formed in the cylindrical structure at the bottom of the second sliding cavity and used for arranging a sealing plug; a second spring is arranged between the piston and the pressing cover.

Furthermore, the section of the sealing plug is umbrella-shaped, wherein the umbrella cover is positioned in a sliding cavity II on the upper side of the through hole I, and the umbrella handle part passes through the through hole I and extends into the tank body; the first through hole is a cross-shaped through hole, and the coverage area of the first through hole can be covered by the umbrella cover; the umbrella handle is also provided with a spherical structure, and the umbrella handle part can be clamped in the first through hole through the spherical structure.

Further, a sealing ring is arranged between the piston and the inner wall of the second sliding cavity; a sealing ring is arranged between the bottom cover and the tank body; the vent plug is arranged on the top cover of the sealing cover, wherein the bottom of the vent plug penetrates through the top cover and the bottom cover to reach the inside of the tank body; the top and the bottom of the vent plug are respectively provided with a clamping structure, the clamping structure arranged at the top is used for clamping a spring III between the vent plug and the top cover, and the clamping structure at the bottom clamps the vent plug through the bottom cover; the bottom of the tank body is also provided with a raised annular base, and a raised annular connecting seat is also arranged on the top cover, and the annular base can be embedded in the outer side of the annular connecting seat.

The utility model has the advantages that:

through the arrangement of the sealing cover, the piston, the pressing cover and the sealing plug and the position connection relationship, a structure capable of reducing air pressure in the tank body is realized, and the vacuum storage of articles in the tank body is facilitated;

through setting up core vent and spring three, realize the atmospheric pressure increase of the internal portion of jar, open the jar body during convenient to use, make the core vent support through spring three in addition through-hole two, it is internal that gaseous entering jar when avoiding storing.

Drawings

Fig. 1 is a perspective view of a first embodiment of the present invention;

fig. 2 is a front view of a first embodiment of the present invention;

fig. 3 is an exploded view of a first embodiment of the present invention;

fig. 4 is a bottom view of the first embodiment of the present invention;

fig. 5 is a top view of a first embodiment of the present invention;

fig. 6 is a cross-sectional view taken along line C-C of fig. 4 in accordance with the present invention;

fig. 7 is a schematic view of a tank according to a first embodiment of the present invention.

The attached drawings indicate the following: the sealing structure comprises a tank body 1, an annular base 11, a sealing cover 2, a bottom cover 21, an outer ring 22, a first sliding cavity 23, a second sliding cavity 24, a first through hole 25, a sealing ring 26, a top cover 27, a second through hole 28, an annular connecting seat seal 29, a piston 3, a first spring 31, a second spring 32, a pressing cover 4, a tubular protrusion 41, a sealing plug 5, an exhaust plug 6 and a third spring 61.

Detailed Description

The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will be readily apparent to those skilled in the art from the disclosure herein. The present invention can also be implemented or applied through other different specific embodiments, and various details in the present specification can be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It is to be noted that the features in the following embodiments and examples may be combined with each other without conflict.

It should be noted that the drawings provided in the following embodiments are only for illustrating the basic concept of the present invention, and the components related to the present invention are only shown in the drawings rather than drawn according to the number, shape and size of the components in actual implementation, and the form, amount and ratio of the components in actual implementation may be changed at will, and the layout of the components may be more complicated.

The first embodiment is as follows:

as shown in fig. 1-4, a pressing type vacuum pumping device comprises a tank body 1, a sealing cover 2, a piston 3, a pressing cover 4, a sealing plug 5 and an exhaust plug 6; wherein the sealing cover 2 is arranged at one end of the tank body 1 in a sealing way; the middle part of the sealing cover 2 is arranged to bulge towards the inner side of the tank body 1, the bottom of the bulge part is provided with a first through hole 25, and the first through hole 25 is provided with a sealing plug 5; the protruding part of the sealing cover 2 is also provided with a piston 3 and a pressing cover 4, and the piston 3 is positioned between the pressing cover 4 and the sealing cover 2; a spring is arranged between the piston 3 and the sealing cover 2; the sealing cover 2 is also provided with a second through hole 28, and the second through hole 28 is provided with a vent plug 6.

As shown in fig. 5 and 6, the sealing cover 2 includes two parts, namely a bottom cover 21 and a top cover 27, wherein the top cover 27 is arranged on the top cover 27 in a clamping manner; the bottom cover 21 is connected with the can body 1. The bottom cover 21 comprises an outer ring 22, a first sliding cavity 23 and a second sliding cavity 24; the outer ring 22 is annular, and the first sliding cavity 23 is arranged on the inner side of the outer ring 22; the second sliding cavity 24 is arranged inside the first sliding cavity 23, and the second sliding cavity 24 protrudes towards the inside of the tank body 1; the outer ring 22, the first sliding cavity 23 and the second sliding cavity 24 are integrally formed in an injection molding mode; the pressing cover 4 is slidably disposed in the first sliding cavity 23, and the piston 3 is slidably disposed in the second sliding cavity 24.

The outer ring 22 is composed of three annular tubular structures, and the axes of the three annular tubular structures are positioned on the same straight line; the two adjacent annular tubular structures are connected through an annular sheet structure. In this example, a raised hollow cylinder is provided on the annular sheet structure between the outermost annular tubular structure and the second outer annular tubular structure, and a hollow cylinder is also provided on the innermost annular tubular structure, the hollow cylinder on the innermost annular tubular structure being raised inwardly, the axis of the hollow cylinder being parallel to the axis of the annular tubular structure. The can body 1 is connected between the outermost annular tubular structure and the second outer annular tubular structure of the outer ring 22, a sealing ring 26 is arranged between the outermost annular tubular structure and the second outer annular tubular structure in the embodiment, and the sealing ring 26 is positioned between the bottom cover 21 and the can body 1 when the can body is closed, so that the sealing effect of the can body 1 is improved. The top cover 27 is arranged on the outer ring 22 of the bottom cover 21; a convex connecting cylinder is arranged on the top cover 27 corresponding to the position of the hollow cylinder of the outer ring 22, and the top cover 27 and the bottom cover 21 are clamped through the matching of the connecting cylinder and the hollow cylinder; when the top cap 27 is coupled to the bottom cap 21, the edge of the top cap 27 extends toward the inside of the outer cap by a portion for catching the pressing cap 4. The first sliding cavity 23 is located on the inner side of the outer ring 22, wherein a circular sheet structure is arranged at the bottom of the first sliding cavity 23, and the edge of the circular sheet structure is connected with the bottom of the inner side of the outer ring 22; in this example the circular sheet like structure is connected to the bottom of the innermost annular tubular structure of the outer ring 22, which forms a sliding chamber one 23 with the circular sheet like structure. Wherein the middle part of the circular sheet structure protrudes towards the inner side of the tank body 1, and the protruding part is cylindrical to form a second sliding cavity 24. The bottom of the second sliding cavity 24 is provided with a first through hole 25, and the first through hole 25 is used for arranging the sealing plug 5.

The whole piston 3 is in a bottle cap shape, wherein the open end of the piston 3 faces the second sliding cavity 24, and the closed end faces the pressing cap 4. The outer edge of one end of the opening of the piston 3 is in contact with the inner wall of the second sliding cavity 24; in order to improve the sealing effect, a sealing ring 26 is further arranged between the piston 3 and the inner wall of the sliding cavity II 24. The pressing cover 4 is in an arc surface shape protruding upwards, the edge of the pressing cover 4 is in contact with the inner wall of the first sliding cavity 23, and the edge of the pressing cover 4 is limited by the edge of the top cover 27 to prevent the pressing cover 4 from falling off. The edge of the press cover 4 is also provided with an arc-shaped notch, and the arc-shaped notch is matched with the hollow cylindrical bulge on the innermost annular tubular structure, so that the press cover 4 can move downwards along the outer side of the hollow cylindrical structure, and the press cover 4 is prevented from rotating. The pressing cover 4 is further provided with a tubular projection 41, the tubular projection 41 is used for clamping the piston 3, in this example, the bottom of the piston 3 is contacted with the inner wall of the second sliding cavity 24, and the top of the piston 3 is positioned inside the tubular projection 41. It should be noted that a protrusion structure is further disposed outside the piston 3 for abutting against the tubular protrusion 41 and limiting the depth of the piston 3 extending into the tubular protrusion 41.

A first spring 31 is further arranged between the piston 3 and the second sliding cavity 24, in this example, a cylindrical structure protruding towards the piston 3 is arranged at the bottom of the second sliding cavity 24, one end of the first spring 31 is sleeved outside the cylindrical structure, and the other end of the first spring 31 is sleeved on the cylindrical structure protruding on the piston 3. And a first through hole 25 is further formed in the cylindrical structure at the bottom of the second sliding cavity 24, and the first through hole 25 is used for arranging the sealing plug 5. A second spring 32 is also arranged between the piston 3 and the pressing cover 4.

The section of the sealing plug 5 is umbrella-shaped, wherein the umbrella surface is positioned in the sliding cavity II 24 on the upper side of the through hole I25, and the umbrella handle part passes through the through hole I25 and extends into the tank body 1. In the example, the first through hole 25 is a cross-shaped through hole, wherein the coverage area of the first through hole 25 can be covered by the umbrella cover; the umbrella handle is also provided with a spherical structure which is matched with the first through hole 25, so that when the sealing plug 5 moves upwards, the umbrella handle part can be clamped in the first through hole 25, and the sealing plug 5 is prevented from being separated from the first through hole 25.

The vent plug 6 is arranged on the top cover 27 of the sealing cover 2, wherein the bottom of the vent plug 6 penetrates through the top cover 27 and the bottom cover 21 to reach the inside of the can body 1, the top of the vent plug 6 is positioned in a tubular area arranged on the top cover 27, and the tubular area faces the bottom cover 21; the top and the bottom of the vent plug 6 are provided with clamping structures, wherein the clamping structure arranged at the top is used for clamping the spring III 61 between the vent plug 6 and the top cover 27, and the clamping structure at the bottom clamps the vent plug 6 through the bottom cover 21.

As shown in fig. 7, a raised annular base 11 is further arranged at the bottom of the can body 1, and a raised annular connecting seat is also arranged on the top cover 27, and the annular base 11 can be embedded at the outer side of the annular connecting seat to realize stacking storage; the annular base 11 is also used for supporting the tank 1 when the tank 1 is placed.

In the implementation process, the piston 3 between the pressing cover 4 and the sealing cover 2 is driven to move downwards by applying a downward force to the pressing cover 4, at the moment, because the air pressure between the pressing cover 4 and the sealing cover 2 is increased, the sealing plug 5 can tightly close the through hole I25, and the air is discharged from the gap between the sealing plug 5 and the sealing cover 2 by the applied pressure; after the pressure is removed, the piston 3 jacks up the piston 3 due to the elastic force of the spring, and in the process of jacking up the piston 3, because the air pressure between the piston 3 and the sealing cover 2 is reduced, the air pressure in the tank body 1 is large, the sealing plug 5 arranged on the sealing cover 2 can be jacked up, and the air pressure balance of the two sides of the sealing plug 5 is realized; the operation of reducing the air pressure in the can body 1 is realized by repeatedly pressing the pressing lid 4. In addition, when the tank is opened, the vent plug 6 is pressed down, so that the outside of the tank body 1 is communicated with the inside of the tank body 1, the air pressure in the tank body 1 is reduced, and the tank body 1 is convenient to open.

The above description is only a specific example of the present invention and does not constitute any limitation to the present invention. It will be apparent to those skilled in the art that various modifications and variations in form and detail may be made without departing from the principles and structures of the invention without departing from the spirit and scope of the invention, but such modifications and variations are within the purview of the appended claims.

Claims

1. A pressing type vacuumizing device is characterized by comprising a tank body, a sealing cover, a piston, a pressing cover, a sealing plug and an exhaust plug; wherein the sealing cover is arranged at one end of the tank body in a sealing way; the middle part of the sealing cover is arranged to protrude towards the inner side of the tank body, the bottom of the protruding part is provided with a first through hole, and the first through hole is provided with a sealing plug; the convex part of the sealing cover is also provided with a piston and a pressing cover, and the piston is positioned between the pressing cover and the sealing cover; a spring is arranged between the piston and the sealing cover; the sealing cover is also provided with a second through hole, and the second through hole is provided with an exhaust plug.

2. The push type vacuum pumping device as claimed in claim 1, wherein the sealing cover comprises a bottom cover and a top cover, wherein the top cover is arranged on the top cover in a clamping manner; the bottom cover is connected with the tank body.

3. The push type vacuum pumping device as claimed in claim 2, wherein the bottom cover comprises an outer ring, a first sliding cavity and a second sliding cavity; the outer ring is annular, and the first sliding cavity is arranged on the inner side of the outer ring; the sliding cavity II is arranged in the sliding cavity I, and the sliding cavity protrudes towards the inside of the tank body; the pressing cover is arranged in the first sliding cavity in a sliding mode, and the piston is arranged in the second sliding cavity in a sliding mode; and a first through hole is formed in the bottom of the second sliding cavity and used for arranging a sealing plug.

4. The push type vacuum pumping device as claimed in claim 3, wherein the outer ring is composed of three annular tubular structures, and the axes of the three annular tubular structures are located on the same straight line; the two adjacent annular tubular structures are connected through an annular sheet structure; the annular sheet structure between the annular tubular structure on the outermost side and the annular tubular structure on the secondary outer side is provided with a raised hollow cylinder, the annular tubular structure on the innermost side is also provided with a hollow cylinder, the hollow cylinder on the annular tubular structure on the innermost side is raised towards the inner side, and the axis of the hollow cylinder is parallel to the axis of the annular tubular structure.

5. The push type vacuum pumping device according to claim 3, wherein the piston is in a bottle cap shape as a whole, wherein the open end of the piston faces the second sliding cavity, and the closed end faces the push cap; the outer edge of one end of the opening of the piston is in contact with the inner wall of the second sliding cavity.

6. The push type vacuum pumping device as claimed in claim 3, wherein the top cover and the bottom cover are clamped; the edge of the top cover extends a part of the inner side of the outer cover.

7. The push type vacuum pumping device as claimed in claim 6, wherein the pressing cover is in the shape of an upwardly convex arc, the edge of the pressing cover contacts with the inner wall of the first sliding chamber, and the edge of the pressing cover is limited by the edge of the top cover.

8. The push type vacuum pumping device as claimed in claim 3, wherein a first spring is further arranged between the piston and the second sliding cavity; the bottom of the sliding cavity II is provided with a cylindrical structure protruding towards the piston direction, one end of the spring I is sleeved outside the cylindrical structure, and the other end of the spring I is sleeved on the cylindrical structure protruding out of the piston; a first through hole is formed in the cylindrical structure at the bottom of the second sliding cavity and used for arranging a sealing plug; a second spring is arranged between the piston and the pressing cover.

9. The push type vacuum pumping device as claimed in claim 1, wherein the cross section of the sealing plug is umbrella-shaped, wherein the umbrella cover is positioned in the second sliding cavity at the upper side of the first through hole, and the umbrella handle part passes through the first through hole and extends into the tank body; the first through hole is a cross-shaped through hole, and the coverage area of the first through hole can be covered by the umbrella cover; the umbrella handle is also provided with a spherical structure, and the umbrella handle part can be clamped in the first through hole through the spherical structure.

10. The push type vacuum pumping device as claimed in claim 3, wherein a sealing ring is further disposed between the piston and the inner wall of the second sliding cavity; a sealing ring is arranged between the bottom cover and the tank body; the vent plug is arranged on the top cover of the sealing cover, wherein the bottom of the vent plug penetrates through the top cover and the bottom cover to reach the inside of the tank body; the top and the bottom of the vent plug are respectively provided with a clamping structure, the clamping structure arranged at the top is used for clamping a spring III between the vent plug and the top cover, and the clamping structure at the bottom clamps the vent plug through the bottom cover; the bottom of the tank body is also provided with a raised annular base, and a raised annular connecting seat is also arranged on the top cover, and the annular base can be embedded in the outer side of the annular connecting seat.