CN209473964U

CN209473964U - Vacuum lunch box

Info

Publication number: CN209473964U
Application number: CN201821889593.1U
Authority: CN
Inventors: 王涛
Original assignee: Shenzhen Crystal Packing Material Co Ltd
Current assignee: Shenzhen Crystal Packing Material Co Ltd
Priority date: 2018-11-14
Filing date: 2018-11-14
Publication date: 2019-10-11
Anticipated expiration: 2028-11-14

Abstract

The utility model discloses a kind of Vacuum lunch boxs, including box cover and box body, chamber is offered on the box cover, piston is slidably connected in the chamber, the venthole being connected to box body is provided in the chamber, the first check valve gone out only for gas in box body is provided on the venthole, the mobile actuator of driving piston is provided on the box cover, the ventilating groove of the one-way ventilating when it is moved down is offered on the piston, when needing to carry out vacuum pumping to box body, piston can be driven to move down in chamber by the actuator on box cover, the indoor gas of chamber is discharged by ventilating groove, driving piston to move up the generation negative pressure in chamber again promotes the first check valve to open, by the intracorporal air extraction of box, it is so constantly reciprocal to realize vacuum pumping, lunch box itself carries built-in vacuumizing function in this way, so there is no need to by additional Vaccum-pumping equipment facilitates people to use vacuum crisper anywhere or anytime, carries out to food or other articles fresh-keeping.

Description

Vacuum lunch box

Technical field

The utility model relates to lunch box fields, more specifically, it relates to a kind of Vacuum lunch box.

Background technique

With the development of society and the progress of science and technology, people also just have the preservation quality and duration of food higher and more Long requirement.In order to make the food fresh-keeping in container, usually the air in container is taken away, makes container in vacuum state, from And realize the fresh-keeping of its interior food, Fresh-keeping mess tin is generally exactly the box body for seeming sealing, and relying on is exactly to seal box body To obstruct contact of the box body with outside air, to achieve the purpose that fresh-keeping.However, the Fresh-keeping mess tin of this structure, although box The air of inside and outside does not circulate mutually, but air is still remained in box body, and the oxygen in air and the intracorporal food of box carry out oxygen Change, to just affect the fresh of food, fresh keeping time is also just limited.

Occurs a kind of vacuum freshness retaining lunch box currently on the market, when in use by setting by additional matched extraction vacuum Standby to complete the step of extracting vacuum, vaccum-pumping equipment brings many inconvenience using and carry, if vaccum-pumping equipment is lost When losing or damaging, Fresh-keeping mess tin cannot complete the step of extracting vacuum, so that it is fresh-keeping to result in Fresh-keeping mess tin that cannot play Effect.

Utility model content

In view of the deficienciess of the prior art, having and being not necessarily to the purpose of this utility model is to provide a kind of Vacuum lunch box The advantages of vacuumizing can be realized by the additional vacuum equipment that extracts.

To achieve the above object, the utility model provides following technical solution:

A kind of Vacuum lunch box, including box cover and box body offer chamber on the box cover, slidably connect in the chamber Piston is provided with the venthole being connected to box body in the chamber, is provided on the venthole outgoing only for gas in box body The first check valve, the mobile actuator of driving piston is provided on the box cover, is offered on the piston when it is moved down The ventilating groove of one-way ventilating.

It is arranged in this way, when needing to carry out vacuum pumping to box body, can be driven by the actuator on box cover Piston moves down in chamber, and the indoor gas of chamber is discharged by ventilating groove, then drives piston to move up and generate negative pressure rush in chamber Open the first check valve, by the intracorporal air extraction of box, so constantly reciprocal to realize vacuum pumping, such lunch box itself is certainly With built-in vacuumizing function, so there is no need to facilitate people to use vacuum freshness retaining anywhere or anytime by additional vaccum-pumping equipment Box carries out food or other articles fresh-keeping.

The utility model is further arranged: the piston outer wall offers annular groove, is socketed on the annular groove and is adapted to it Sealing ring, the ventilating groove is provided in annular groove, and the width of the annular groove is greater than the diameter of sealing ring.

Sealing ring can be pushed during piston moves down in this way, at this time exposed portion ventilating groove, the indoor gas of chamber It can be discharged from ventilating groove, and during piston moves up, sealing ring can be pushed down, and sealing ring plays sealing function at this time, The indoor gas of chamber can not be discharged from ventilating groove, open the first check valve so as to generate negative pressure in chamber.

The utility model is further arranged: the actuator includes handle, and the middle handle is rotatably connected on box cover, The piston hinge is in handle one end.

In this way piston can be driven to move up and down realization and taken out by the one end of carrying handle far from piston back and forth up and down Vacuumizing, structure are simple and easy to operate.

The utility model is further arranged: the one end of the handle far from piston is operating side, the operating side to rotation The distance of junction is greater than distance of the other end at rotation connection.

Make the arm of force of operating side side longer in this way, to can more easily save during upper and lower carrying handle Power.

The utility model is further arranged: being provided with pillar on the piston, is provided on the handle and is adapted to pillar And for the bar groove of its sliding.

By the setting of bar groove, piston is driven to move up and down in driving handle rotation, pillar can slide in bar groove, So as to ensure that vertical direction drives piston to move up and down to handle always, avoids the occurrence of the case where blocking.

The utility model is further arranged: the handle is hinged with the first hasp far from one end of piston, on the box body It is provided with the first button block for the first hasp snapping.

By the setting of the first hasp, one side people can hold the when driving handle operation to realize vacuum pumping One hasp operates, and provides stable impetus, and on the other hand the first hasp and the snapping of first button block, which are fixed, may be implemented box Lid is connected and fixed with box body, is less prone to separation.

The utility model is further arranged: offering air inlet on the box cover, it is single that second is provided on the air inlet To valve.

It is subsequent to open second one-way valve when needing to open outside air is entered after being evacuated in box body Into box body, box cover can be opened normally at this time.

The utility model is further arranged: being provided with mounting hole on the box cover, pressure inspection is equipped in the mounting hole Side valve.

By the setting of pressure detecting valve, pressure detecting valve can play the role of prompt, can during vacuumizing To learn the degree vacuumized in box body by detecting valve.

The utility model is further arranged: the box cover is hinged with the second hasp, the box far from one end of the first hasp The second button block for the second hasp snapping is provided on body.

Further fixed by the second hasp and the snapping of the second button block, thus the first hasp and the second hasp symmetrically from The two sides of box cover, which are realized, to be fixed, it is ensured that box cover can be still stably fixed on box body in the state of not vacuumizing.

The utility model is further arranged: being provided with ring side on the box body, is socketed on the ring side and abuts with box cover Sealing ring.

Sealing ring can play the leakproofness of box body and box cover junction first, and extraneous air is avoided to enter from junction Into box body, while ring side can play positioning action to sealing ring, and sealing ring can remove carry out cleaning replacement.

In conclusion the utility model has the following beneficial effects:

By the way that built-in piston is arranged on box cover, piston is driven up and down reciprocatingly to be transported by the mode that handle back and forth lifts The purpose that dynamic realization constantly extracts air in box body out, it is simple to operate and without additional vaccum-pumping equipment, it can be with Vacuum crisper is used whenever and wherever possible, and handle drives piston mobile using the principle of lever, operation is more easily laborsaving.

Detailed description of the invention

Fig. 1 is the explosive view of the present embodiment；

Fig. 2 is the structure chart of handle in the present embodiment；

Fig. 3 is the structure chart of piston in the present embodiment.

Appended drawing reference: 1, box body；2, box cover；3, chamber；4, piston；5, venthole；6, the first check valve；7, annular groove；8, Sealing ring；9, ventilating groove；10, handle；11, raised line；12, bar groove；13, pillar；14, protruding shaft；15, operating side；16, it first takes Button；17, the first button block；18, the second hasp；19, the second button block；20, it is recessed；21, air inlet；22, second one-way valve；23, pacify Fill hole；24, pressure detecting valve；25, ring side；26, sealing ring.

Specific embodiment

The utility model is described in further detail below in conjunction with attached drawing.

A kind of Vacuum lunch box, as Fig. 1 and and Fig. 3 shown in, including box body 1 and box cover 2 offer at the top of box body 1 Recessed chamber 3 slides vertically in chamber 3 and is connected with piston 4, and driving piston 4 is provided on box cover 2 and is back and forth transported in chamber 3 Dynamic actuator, the bottom of chamber 3 offer the venthole 5 being connected to inside box body 1, and are provided with only in the venthole 5 For the first check valve 6 of gas discharging in box body 1, annular groove 7 is offered on the side wall of piston 4, is snapped with sealing ring in annular groove 7 8, annular groove 7 and the equal axially spaced-apart of sealing ring 8 setting there are two, wherein the width of annular groove 7 be greater than sealing ring 8 diameter, while Ventilating groove 9, the height and 7 equivalent width of annular groove of ventilating groove 9, to seal during piston 4 moves down are offered in annular groove 7 Circle 8 can move up under the promotion of 3 inner wall of chamber, and ventilating groove 9 is connected to chamber 3 at this time, so as to the sky being discharged in chamber 3 Gas keeps piston 4 smoothly to move down, and during piston 4 moves up, sealing ring 8 can move down, and chamber 3 is in sealing ring 8 at this time Under the action of be no longer in communication with the outside, the first check valve 6 is opened under the action of negative pressure in chamber 3, so as to by box body 1 Interior air is evacuated in chamber 3, and so on constantly drives the mobile vacuum pumping that may be implemented to box body 1 of piston 4.

As shown in Fig. 2, wherein actuator includes the handle 10 of strip, which is provided with raised line 11, should Horizontal bar groove 12 is offered on raised line 11, while being provided on piston 4 and bar groove 12 is adapted to and be rotatably connected on bar groove 12 Interior pillar 13, pillar 13 are rotatably connected in bar groove 12, and the middle part of handle 10 is provided with protruding shaft 14 and by protruding shaft 14 are rotatably connected on box cover 2, so as to realize driving far from one end of piston 4 come operation handle 10 by the principle of lever The purpose that piston 4 moves up and down, wherein the one end of handle 10 far from piston 4 is operating side 15, the operating side 15 to rotation connection The distance at place is greater than distance of the other end at rotation connection, so that the operation for driving piston 4 mobile is more easily laborsaving.

In addition it is hinged with the first hasp 16 at the operating side of handle 10 15, corresponding first button block is set on box body 1 17, while it being hinged with the second hasp 18 far from the side of the first hasp 16 in box cover 2, corresponding second button is provided on box body 1 Block 19, thus by the snapping realization box body 1 of the first hasp 16 and the first button block 17, the second hasp 18 and the second button block 19 and The fixation of box cover 2, even if being also possible to prevent falling for box cover 2 in the case where not vacuumizing, and the first hasp 16 can also Good hand-held effect is played, people can hold the first hasp 16 when driving handle 10 rotates and operate, and operation is more Add conveniently.

The recess 20 being adapted to handle 10 is offered, at the top of box cover 2 so as to ensure the flat of entire lunch box surface Whole degree, more aesthetics offer in air inlet 21 and air inlet 21 in the recess 20 and are equipped with second one-way valve 22, in this way It when even if being in vacuum state in box body 1 unlocks the first hasp 16 and 18 box cover 2 of the second hasp is still to be opened, By opening second one-way valve 22 extraneous air is entered in box body 1, so that box cover 2 can smoothly be beaten It opens；In addition it is also provided with mounting hole 23 in recess 20, mounting hole 23 is fixed with pressure detecting valve 24, the pressure in the present embodiment Detect valve 24 select inner hollow rubber bumps, thus in box body 1 by vacuum after, rubber bumps can all sink to installation In hole 23, understood in box body 1 in time convenient for people and be pumped down to vacuum, plays the role of mark prompt.

The top of box body 1 is provided with ring side 25, the sealing ring 26 abutted with box cover 2 is socketed on the ring side 25, in this way Ring side 25 can play the role of positioning sealing ring 26 first, and can be removed at any time and be replaced or cleaned, After covering box cover 2, the two sides of sealing ring 26 are closely abutted with box body 1 and box cover 2 respectively, so as to play box cover 2 with And the leakproofness of 1 junction of box body, avoid outside air from entering vaccum in influence box body 1 in box body 1.

Detailed process: it is closed first by box cover 2 and with the lid of box body 1, and real by the second hasp 18 and 19 snapping of the second button block It now pre-fixes, is then above mentioned the operating side 15 of handle 10 by hand-held second hasp 18, to drive piston 4 in chamber 3 It moves down, sealing ring 8 moves up in annular groove 7 at this time, and the air in chamber 3 can be discharged by ventilating groove 9, then again by handle 10 Operating side 15 push so that piston 4 moves up, sealing ring 8 is displaced downwardly to 7 bottom of annular groove and realizes sealing, and the formation in chamber 3 is negative It presses and opens the first check valve 6, so that the air in box body 1 is evacuated in chamber 3, and so on operation can be extracted out constantly Air in box body 1, until pressure detecting valve 24 all sink to completing vacuum pumping in mounting hole 23, then by the first hasp 16 It needs to open box to keep vaccum in box body 1 with the fixed fixation for realizing box cover 2 and box body 1 of 17 snapping of the first button block When lid 2, after first unlocking the first hasp 16 and the second hasp 18, then by after the opening of second one-way valve 22, extraneous air enters Into box body 1, box cover 2 can normally be opened at this time.

This specific embodiment is only the explanation to the utility model, is not limitations of the present invention, ability Field technique personnel can according to need the modification that not creative contribution is made to the present embodiment after reading this specification, but As long as all by the protection of Patent Law in the scope of the claims of the utility model.

Claims

1. a kind of Vacuum lunch box, including box cover (2) and box body (1), it is characterized in that: chamber (3) are offered on the box cover (2), It is slidably connected piston (4) in the chamber (3), is provided with the venthole (5) being connected to box body (1), institute in the chamber (3) The first check valve (6) for being provided on venthole (5) and going out only for box body (1) interior gas is stated, is provided with drive on the box cover (2) Piston (4) mobile actuator offers the ventilating groove (9) of the one-way ventilating when it is moved down on the piston (4).

2. Vacuum lunch box according to claim 1, it is characterized in that: the piston (4) outer wall offers annular groove (7), it is described The sealing ring (8) being adapted to it is socketed on annular groove (7), the ventilating groove (9) is provided in annular groove (7), the annular groove (7) Width is greater than the diameter of sealing ring (8).

3. Vacuum lunch box according to claim 1, it is characterized in that: the actuator includes handle (10), the handle (10) middle part is rotatably connected on box cover (2), and the piston (4) is hinged on handle (10) one end.

4. Vacuum lunch box according to claim 3, it is characterized in that: the one end of the handle (10) far from piston (4) is behaviour Make end (15), the distance at the operating side (15) to rotation connection is greater than distance of the other end at rotation connection.

5. Vacuum lunch box according to claim 3, it is characterized in that: being provided with pillar (13), the hand on the piston (4) It is provided with and is adapted to pillar (13) and for the bar groove (12) of its sliding on handle (10).

6. Vacuum lunch box according to claim 3, it is characterized in that: the one end of the handle (10) far from piston (4) is hinged Have the first hasp (16), the first button block (17) for the first hasp (16) snapping is provided on the box body (1).

7. Vacuum lunch box according to claim 1, it is characterized in that: air inlet (21) are offered on the box cover (2), it is described Second one-way valve (22) are provided on air inlet (21).

8. Vacuum lunch box according to claim 1, it is characterized in that: mounting hole (23) are provided on the box cover (2), it is described Pressure detecting valve (24) are installed in mounting hole (23).

9. Vacuum lunch box according to claim 6, it is characterized in that: the one end of the box cover (2) far from the first hasp (16) It is hinged with the second hasp (18), the second button block (19) for the second hasp (18) snapping is provided on the box body (1).

10. Vacuum lunch box according to claim 1, it is characterized in that: ring side (25) are provided on the box body (1), it is described The sealing ring (26) abutted with box cover (2) is socketed on ring side (25).