CN210972304U

CN210972304U - High-efficient vacuumized preservation box

Info

Publication number: CN210972304U
Application number: CN201922069888.5U
Authority: CN
Inventors: 王涛; 李晶; 罗光植
Original assignee: Shenzhen Jingding Packaging Materials Co ltd
Current assignee: Shenzhen Jingding Packaging Materials Co ltd
Priority date: 2019-11-26
Filing date: 2019-11-26
Publication date: 2020-07-10
Anticipated expiration: 2029-11-26

Abstract

The utility model discloses a high-efficiency vacuumizing preservation box, which comprises a box body and a box cover, wherein cavities are symmetrically arranged on the box cover, pistons are connected in the cavities in a sliding manner, air outlets are arranged in the cavities, first check valves are arranged at the air outlets, one-way structures for communicating the cavities with the outside when the pistons move towards the first check valves are arranged on the pistons, and a driving mechanism for driving the symmetrically arranged pistons to synchronously reciprocate is arranged on the box cover; the chambers are symmetrically arranged, and the pistons in the symmetrical chambers are synchronously driven to reciprocate by the driving mechanism, so that when one piston is in a vacuumizing state, the piston is in a state of exhausting air in the chamber, the chamber is always kept in the vacuumizing state in the driving process of the driving mechanism, and a more efficient vacuumizing effect is achieved.

Description

High-efficient vacuumized preservation box

Technical Field

The utility model relates to a preservation box field, more specifically says, it relates to a preservation box of high-efficient evacuation.

Background

With the development of society and the advancement of science and technology, people have higher and longer requirements on the fresh-keeping quality and duration of food. In order to keep food fresh in a container, air in the container is usually pumped away to make the container in a vacuum state, so that the food in the container is kept fresh, and a fresh-keeping box is generally a box body which looks like a seal and is used for sealing the box body so as to prevent the box body from contacting with external air, so that the aim of keeping fresh is fulfilled. However, although the air inside and outside the box body is not communicated, the air still exists in the box body, and oxygen in the air is oxidized with food in the box body, so that the freshness of the food is influenced, and the freshness keeping time is limited.

There is also vacuum preservation box on the current market, chinese patent that bulletin number is CN203486343U for example discloses a manual evacuation fresh-keeping box, close the fresh-keeping lid on fresh-keeping box body opening including fresh-keeping box body and sealed lid, this fresh-keeping lid comprises face-piece and the fixed lock of drain pan, the face-piece surface is equipped with the air inlet that pierces through the face-piece, the drain pan bottom is equipped with the conduction hole of bleeding and the conduction hole of admitting air that pierces through the drain pan, the conduction hole of admitting air up extends to the air inlet, the conduction hole bottom of bleeding is equipped with the exhaust hole stopper, the conduction hole top of bleeding is equipped with sealing washer two, and be connected with manual evacuating device at the conduction hole. The novel vacuum fresh-keeping box is simple and convenient to operate because the air pump handle is manually operated, and the vacuumizing step can be completed without external matched vacuumizing equipment, so that the interior of the fresh-keeping box body is in a vacuum state, and external air is effectively prevented from entering the vacuum fresh-keeping box body, thereby ensuring the fresh-keeping effect of the vacuum fresh-keeping box; the air pump handle needs to be operated to and fro every time of vacuum pumping, and the defect of low vacuum pumping efficiency exists.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide a preservation box of high-efficient evacuation has the efficient advantage of evacuation.

In order to achieve the above purpose, the utility model provides a following technical scheme:

the utility model provides a preservation box of high-efficient evacuation, includes box body and lid, the cavity has been seted up to the symmetry on the lid, equal sliding connection has the piston in the cavity, all be provided with venthole and venthole department in the cavity and be provided with first check valve, be provided with on the piston and communicate cavity and external one-way structure when it removes towards first check valve, be provided with the actuating mechanism who orders about piston synchronous motion on the lid.

The chambers are symmetrically arranged, and the pistons in the symmetrical chambers are synchronously driven to reciprocate by the driving mechanism, so that when one piston is in a vacuumizing state, the piston is in a state of exhausting air in the chamber, the chamber is always kept in the vacuumizing state in the driving process of the driving mechanism, and a more efficient vacuumizing effect is achieved.

The utility model discloses further set up: the driving mechanism comprises a rotating part and connecting pieces, wherein the rotating part is rotatably connected to the box cover, the connecting pieces are symmetrically connected with the pistons, the middle part of each connecting piece is hollow, a hollow part is formed in the middle of each connecting piece, an incomplete gear is arranged on each rotating part, a rack which is meshed with the incomplete gear is arranged on the inner wall of the hollow part, and the racks are respectively positioned on two sides of the incomplete gear.

The pistons which are symmetrically arranged are connected into a whole through the connecting piece, the purpose of driving the connecting piece to move back and forth is achieved by alternately meshing the pistons with the racks on two sides by means of the incomplete gear only by rotating the rotating piece during operation, so that the cavity is always in a vacuumizing state in the driving process, and the vacuumizing efficiency is high and the structure is simple.

The utility model discloses further set up: actuating mechanism includes rotor and member, the rotor rotates to be connected on the box cover and is provided with the cam, member one end is fixed respectively on the piston, and the other end is connected on the cam, the member tip be provided with cam sliding connection's linkage, the cam outer wall is provided with the gliding spout of confession linkage circumference.

The cam is driven to rotate by rotating the rotating body, the convex part on the cam drives the side lever piece to move towards the direction of the first one-way valve, gas in the cavity is discharged, the rod piece on the other side is driven by the linkage piece to move away from the direction of the first one-way valve to realize air exhaust, the cavity is always in a vacuumizing state in the driving process, and the vacuumizing efficiency is high and the structure is simple.

The utility model discloses further set up: the one-way structure includes annular, sealing washer and ventilative groove, the annular is seted up at the outer wall of piston, the sealing washer cup joints in the annular, ventilative groove is seted up in the annular and is communicate with external, the width of annular and ventilative groove is greater than the diameter of sealing washer.

Like this at the in-process sealing washer that the piston removed towards first check valve direction and can be pushed away from first check valve, expose partial ventilative groove this moment, the gas in the cavity can be followed ventilative groove and discharged, and at the in-process that the piston removed towards first check valve dorsad, the sealing washer can be pushed and be close to first check valve, the sealing washer plays sealed effect this moment, the gas in the cavity can not be followed ventilative groove and discharged to can produce the negative pressure in the cavity and open first check valve.

The utility model discloses further set up: an air inlet is formed in the box cover, and a second one-way valve is arranged on the air inlet.

After the box body is vacuumized, the second one-way valve can be opened when the box body needs to be opened subsequently, so that the outside air enters the box body, and the box cover can be normally opened at the moment.

The utility model discloses further set up: the box cover is provided with a pressure detection piece.

Through the setting of pressure measurement spare, the effect of suggestion can be played to pressure measurement spare, can learn the degree of evacuation in the box body through pressure measurement spare at the in-process of evacuation.

The utility model discloses further set up: the box cover is hinged with a hasp, and a buckling block for buckling the hasp is arranged on the box body.

The connection can be dismantled in the mode realization that lid and box body pass through the lock joint, and the lock joint is fixed can realize that lid and box body's joint is fixed, and both are difficult for appearing the separation, and stability is better.

The utility model discloses further set up: the box body is provided with an annular edge, and the annular edge is sleeved with a sealing ring abutted to the box cover.

At first the sealing ring can play the leakproofness of box body and lid junction, avoids external air to enter into the box body from the junction, and the ring limit can play the positioning action to the sealing ring simultaneously, and the sealing ring can be torn open moreover and wash the change.

To sum up, the utility model discloses following beneficial effect has:

the at least two chambers are symmetrically arranged, the pistons in the chambers are driven to synchronously move by the driving mechanism, the chambers are always in a vacuumizing state in the driving process, the purpose of higher vacuumizing efficiency is achieved, and the corresponding driving effect is achieved by adopting two different structures; in addition, the degree of vacuum pumping in the box body can be timely known through the pressure detection piece, the purpose of corresponding prompt is achieved, and the preservation box is uniformly provided with a plurality of groups of cavities around the circumference according to actual needs, so that the purpose of improving the vacuum pumping efficiency is achieved.

Drawings

FIG. 1 is an overall structural view of embodiment 1;

FIG. 2 is an exploded view of example 1;

FIG. 3 is a sectional view of embodiment 1;

FIG. 4 is an enlarged view taken at A in FIG. 3;

FIG. 5 is a structural view of a drive mechanism in embodiment 1;

FIG. 6 is a sectional view of embodiment 2;

fig. 7 is a structural view of a drive mechanism in embodiment 2.

Reference numerals: 1. a box body; 2. a box cover; 3. a hasp; 4. buckling blocks; 5. encircling; 6. a seal ring; 7. a chamber; 71. a closed cavity; 72. a communicating cavity; 8. a piston; 9. an air outlet; 10. a first check valve; 11. a ring groove; 12. a seal ring; 13. a ventilation groove; 14. a rotating member; 15. a connecting member; 16. a hollow part; 17. an operating handle; 18. an incomplete gear; 19. a rack; 20. an air inlet; 21. a second one-way valve; 23. a pressure detecting member; 24. a rotating body; 25. a rod member; 26. a cam; 27. the cambered surface is sunken; 28. a chute; 29. a linkage member; 30. a port; 31. sealing the cover; 32. and (7) conducting strips.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Example 1: a high-efficiency vacuumizing preservation box is shown in figures 1 and 2 and comprises a box body 1 and a box cover 2, hasps 3 are hinged to two ends of the box cover 2, and buckling blocks 4 which correspond to the hasps 3 and are used for buckling and fixing the hasps are arranged on two sides of the box body 1, so that the box cover 2 is detachably connected with the box body 1 in a buckling mode of the hasps 3, and the box cover 2 only needs to be turned over to be unlocked when needing to be opened, and the operation is simple and convenient; in addition, the top wall of the box body 1 is convexly provided with an annular edge 5, the annular edge 5 is sleeved with a sealing ring 6 abutted to the box cover 2, the sealing ring 6 is positioned between the box cover 2 and the box body 1 and is compressed by the box cover 2, and therefore the sealing performance of the joint of the box cover 2 and the box body 1 is effectively improved.

As shown in fig. 3, two chambers 7 are symmetrically arranged inside the box cover 2, the bottom wall of each chamber 7 is provided with an air outlet 9 communicated with the inside of the box body 1, and the air outlet 9 is provided with a first one-way valve 10, the first one-way valve 10 enables air in the box body 1 to flow only towards the inside of the chamber 7 but not to flow reversely, meanwhile, a piston 8 is horizontally and slidably connected in the chamber 7 to form a closed cavity 71 and a communication cavity 72 communicated with the outside, the space between the piston 8 and the bottom wall of the chamber 7 is the closed cavity 71, and the piston 8 is provided with a one-way structure which enables the closed cavity 71 to be communicated with the communication cavity 72 when the piston 8 moves towards the first one-way valve 10, so that the air in the closed cavity 71 can be discharged; and a driving mechanism for driving the two pistons 8 to synchronously move is arranged in the communicating cavity 72 of the box body 1, so that when the driving mechanism drives the piston 8 to move away from the first one-way valve 10, the air in the box body 1 can be pumped into the closed cavity 71, and the piston 8 is driven to move in the cavity 7 in a reciprocating manner, so that the air in the box body 1 can be continuously pumped out to achieve the purpose of vacuumizing.

As shown in fig. 3 and 4, the one-way structure includes a ring groove 11, a sealing ring 12 and a ventilation groove 13, wherein the ring groove 11 is opened on the side wall of the piston 8, the sealing ring 12 is sleeved in the ring groove 11, and the ventilation groove 13 is opened in the ring groove 11 and communicates with the closed cavity 71 and the communicating cavity 72, wherein the widths of the ring groove 11 and the ventilation groove 13 are greater than the diameter of the sealing ring 12; therefore, when the piston 8 moves away from the first check valve 10, the sealing ring 12 is positioned at the position of the ring groove 11 close to the first check valve 10 under the action of the inner wall of the chamber 7, and the sealing ring 12 can play a role in sealing, so that the closed cavity 71 is in a closed state to finish the purpose of vacuumizing; when the piston 8 slides towards the first check valve 10, the sealing ring 12 is located at a position where the ring groove 11 is far away from the first check valve 10, and at this time, the ventilation groove 13 communicates the closed cavity 71 with the communication cavity 72, so that air in the closed cavity 71 can be discharged into the communication cavity 72 and finally communicated to the outside.

As shown in fig. 3 and 5, the driving mechanism includes a rotating member 14 and a connecting member 15, both ends of the connecting member 15 are respectively fixed with the pistons 8 on both sides, a hollow part 16 penetrating through is opened in the middle of the connecting member 15, wherein the rotating member 14 is located in the hollow part 16 and is rotatably connected with the box cover 2, an incomplete gear 18 is fixed on the rotating member 14, meanwhile, a rack 19 for meshing with the incomplete gear 18 is arranged on the inner wall of the hollow part 16, the rack 19 is respectively located on both sides of the incomplete gear 18, wherein an operating handle 17 located outside the box cover 2 is fixed on the top of the connecting member 15, so that the rotating member 14 is driven to rotate by the operating handle 17, and the rotating operation is more convenient and simpler; therefore, the connecting piece 15 and the two pistons 8 can be driven to synchronously and horizontally move in the process of rotating the rotating piece 14, and when one piston 8 is in a vacuumizing state, the other piston 8 is in a state of exhausting air in the closed cavity 71, so that a cavity 7 is always in a vacuumizing state in the rotating process, and the vacuumizing efficiency is effectively improved.

As shown in fig. 1, an air inlet 20 communicated with the inside of the box body 1 is arranged on the box cover 2, a second check valve 21 is installed at the air inlet 20, the second check valve 21 comprises a rubber plug body, and the air inlet 20 is plugged by the rubber plug body, so that when the box cover 2 cannot be opened due to a vacuum state in the box body 1, the rubber plug body is taken out to allow outside air to enter the box body 1, and the box cover 2 can be smoothly opened; moreover, the box cover 2 is provided with the pressure detection part 23, the pressure detection part 23 in the embodiment adopts a rubber bulge with a hollow inner part, the rubber bulge and the rubber plug body are integrally arranged, and the inner part of the rubber bulge is communicated with the inside of the box body 1, so that the rubber bulge can completely sink after the box body 1 is vacuumized, people can conveniently and timely know that the inside of the box body 1 is vacuumized, and the effect of marking and prompting is achieved; and rubber bulge and rubber buffer body form a whole like this, reduce accessory quantity and effective reduce cost.

As shown in fig. 4 and 5, a through hole 30 communicated with the chamber 7 is formed on the top wall of the box cover 2, a sealing cover 31 is arranged at the through hole 30, the rotating member 14 is rotatably connected to the sealing cover 31, and the piston 8 is conveniently installed by means of the through hole 30; in addition, the outer wall of the connecting piece 15 is convexly provided with a guide strip 32, and the inner wall of the chamber 7 is provided with a guide groove (not shown in the figure) for the guide strip 32 to slide, so that the connecting piece 15 is well supported while guiding by virtue of the sliding connection of the guide strip 32 and the guide groove.

The implementation principle of the embodiment is as follows: firstly, the box cover 2 and the box body 1 are covered, the hasp 3 is buckled with the buckle block 4 to realize fixation, then the rotating piece 14 is driven to rotate by rotating the operating handle 17, the connecting piece 15 and the two pistons 8 are driven to continuously reciprocate during the rotation, negative pressure is formed in the closed cavity 71 to open the first one-way valve 10 when the pistons 8 move away from the first one-way valve 10, so that the vacuum pumping on the box body 1 is realized, the other piston 8 moves towards the first one-way valve 10 to discharge air in the closed cavity 71 into the communicating cavity 72, and the continuous rotation can realize the high-efficiency vacuum pumping on the box body 1 until the pressure detection piece 23 completely sinks into the mounting hole 22 to complete the vacuum pumping operation; when the box cover 2 needs to be opened subsequently, the hasp 3 and the buckling block 4 are firstly released, then the second one-way valve 21 is opened, outside air enters the box body 1, and the box cover 2 can be normally opened at the moment.

Example 2: a high-efficiency vacuumized fresh-keeping box, as shown in fig. 6 and 7, the difference from embodiment 1 lies mainly in the difference of the driving mechanism, and 4 chambers 7 are symmetrically arranged in this embodiment, the driving mechanism in this embodiment includes a rotating body 24 and a rod 25, wherein the rotating body 24 is rotatably connected to the box cover 2, one end of the rotating body 24, which penetrates out of the box cover 2, is also provided with an operating handle 17, the end of the rotating body 24, which is located in the box cover 2, is provided with a cam 26, one end of the rod 25 is fixed on the piston 8, the other end is used for connecting to the cam 26, the middle of the cam 26 is symmetrically provided with an arc recess 27, so that the cam 26 is integrally in a "8" shape, and the end of the rod 25, which is connected to the cam 26, is provided with a linking member 29, and the outer surface of the cam 26 is provided with, the chute 28 is also T-shaped in cross-section, and a link member 29 is slidably connected within the chute 28.

As shown in figures 6 and 7, when the box body 1 needs to be vacuumized, the rotating body 24 is driven to rotate through the operating handle 17, each piston 8 is continuously driven to reciprocate by virtue of the rotation period of the cam 26, and the pistons 8 in the adjacent chambers 7 are in different states, so that the chambers 7 can be always in a vacuumizing state in the driving process, and the vacuumizing efficiency is effectively improved.

The embodiment of this specific implementation is the preferred embodiment of the present invention, not so limiting the protection scope of the present invention, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides a preservation box of high-efficient evacuation, includes box body (1) and lid (2), characterized by: cavity (7) have been seted up to the symmetry on lid (2), equal sliding connection has piston (8) in cavity (7), all be provided with venthole (9) and venthole (9) department in cavity (7) and be provided with first check valve (10), be provided with on piston (8) and communicate cavity (7) and external one-way structure when it removes towards first check valve (10), be provided with the actuating mechanism who orders about piston (8) synchronous motion on lid (2).

2. The efficient vacuumizing crisper according to claim 1, wherein: the driving mechanism comprises a rotating part (14) rotatably connected to the box cover (2) and connecting pieces (15) connected with the pistons (8) symmetrically arranged, a hollow part (16) is formed in the middle of each connecting piece (15) in a hollow mode, an incomplete gear (18) is arranged on each rotating part (14), racks (19) used for being meshed with the incomplete gears (18) are arranged on the inner wall of each hollow part (16), and the racks (19) are located on two sides of each incomplete gear (18) respectively.

3. The efficient vacuuming preservation box according to claim 2, characterized in that: actuating mechanism includes rotor (24) and member (25), rotor (24) rotate to be connected on lid (2) and be provided with cam (26), member (25) one end is fixed respectively on piston (8), and the other end is connected on cam (26), member (25) tip is provided with the linkage with cam (26) sliding connection, cam (26) outer wall is provided with and supplies linkage circumference gliding spout (28).

4. The efficient vacuumizing crisper according to claim 1, wherein: unidirectional structure includes annular (11), sealing washer (12) and ventilative groove (13), the outer wall at piston (8) is seted up in annular (11), sealing washer (12) cup joint in annular (11), ventilative groove (13) are seted up in annular (11) and are communicate with the external world, the width of annular (11) and ventilative groove (13) is greater than the diameter of sealing washer (12).

5. The efficient vacuumizing crisper according to claim 1, wherein: an air inlet hole (20) is formed in the box cover (2), and a second one-way valve (21) is arranged on the air inlet hole (20).

6. The efficient vacuumizing crisper according to claim 1, wherein: and a pressure detection piece (23) is arranged on the box cover (2).

7. The efficient vacuumizing crisper according to claim 1, wherein: the upper part of the box cover (2) is hinged with a hasp (3), and a buckling block (4) for buckling the hasp (3) is arranged on the box body (1).

8. The efficient vacuumizing crisper according to claim 1, wherein: the box body (1) is provided with an annular edge (5), and the annular edge (5) is sleeved with a sealing ring (6) which is abutted to the box cover (2).