CN217970711U

CN217970711U - Vacuum preservation box cover

Info

Publication number: CN217970711U
Application number: CN202222080549.9U
Authority: CN
Inventors: 张孝华
Original assignee: Ningbo Haishu Huayu Industry And Trade Co ltd
Current assignee: Ningbo Haishu Huayu Industry And Trade Co ltd
Priority date: 2022-08-08
Filing date: 2022-08-08
Publication date: 2022-12-06
Anticipated expiration: 2032-08-08

Abstract

The utility model discloses a vacuum preservation box cover, comprising a cover body, a fixed piston, a sliding cylinder and a press hand, wherein the middle part of the cover body is provided with a cavity, a first sleeve is arranged in the middle of the cavity, the fixed piston is arranged in the cavity and is rotationally connected with the first sleeve, the sliding cylinder is in up-and-down sliding fit with the fixed piston, the press hand is covered at the upper end of the sliding cylinder, at least one slot is arranged on the inner side wall of the first sleeve, the slot comprises a first groove extending along the horizontal direction and a second groove extending along the vertical direction, the lower end of the second groove is communicated with one end of the first groove, the upper end of the second groove penetrates through the upper end surface of the first sleeve, the middle part of the fixed piston is provided with a second sleeve inserted into the first sleeve, the outer side wall of the second sleeve is provided with clamping blocks with the same number of the slots, and the clamping blocks enter the first groove through the second groove; the advantage is that the stability of structure is better.

Description

Vacuum preservation box cover

Technical Field

The utility model belongs to the technical field of daily necessities, especially, relate to a vacuum preservation box lid.

Background

Along with the gradual improvement of living standard, people pay more and more attention to the fresh-keeping of daily food, and conventional preservation box has been difficult to satisfy the demand, has appeared on the market vacuum preservation box, and vacuum preservation box is better than conventional preservation box fresh-keeping effect, can prolong the shelf life of food simultaneously, improves food value, therefore is welcomed by people.

For example, in the patent No. ZL200910147616.0 (CN 101570260B), the invention discloses a vacuum preservation box with pump, which comprises a box body, a box cover, a press hand, a fixed piston component, a sliding cylinder component and the like, wherein the press hand, the fixed piston component and the sliding cylinder component form a hand-press vacuum pump, the press hand and the sliding cylinder component move up and down to pump out air in the box body, and the negative pressure in the box body is gradually increased and approaches to vacuum, thereby achieving the purpose of vacuum preservation.

In the invention, a concave cavity is arranged in the middle of a box cover, a concave cavity center shaft is arranged in the middle of the concave cavity, an annular buckle is arranged at the upper end of the concave cavity center shaft, a center shaft is arranged in the middle of a fixed piston, a drum-shaped convex ring is arranged at the position close to the outer wall of the center shaft below the piston, and when the box cover and the fixed piston are assembled, the drum-shaped convex ring for fixing the piston is pressed into the annular buckle of the box cover by inserting the fixed piston center shaft into the inner cavity of the box cover center shaft. It is thus clear that the lid assembles through the pressure equipment with fixed piston, and when evacuation, the in-process that the slip cylinder subassembly reciprocated can collide with fixed piston, when the collision dynamics is great, probably makes the drum-shaped bulge loop break away from annular buckle and scatter the frame, and the stability of structure is relatively poor, has certain hidden danger.

Disclosure of Invention

The utility model aims to solve the technical problem that a vacuum preservation box lid is provided, the stability of structure is better.

The utility model provides a technical scheme that above-mentioned technical problem adopted does: the utility model provides a vacuum preservation box lid, includes lid, fixed piston, sliding cylinder and press hand, the middle part of lid is provided with the cavity, be equipped with first sleeve in the middle of the cavity, fixed piston sets up in the cavity and with first sleeve rotate to be connected, sliding cylinder with sliding fit about the fixed piston, be in according to the hand lid sliding cylinder's upper end, be provided with at least one slot on the first telescopic inside wall, the slot includes along the first recess that the horizontal direction extends and the second recess that extends along vertical direction, the lower extreme of second recess with the one end intercommunication of first recess, the upper end of second recess runs through first telescopic up end, fixed piston's middle part is provided with and inserts second sleeve in the first sleeve, be provided with on the second telescopic lateral wall with the joint piece that slot quantity is the same, the joint piece passes through the second recess enters into correspondingly in the first recess.

Preferably, the lower extreme of second sleeve is provided with the mounting groove, with shift fork, the valve of mounting groove intercommunication and the silica gel pad that is provided with the gas pocket, the valve sets up in the mounting groove, the outside of valve is provided with and stretches into the spiral wing of shift fork, the silica gel pad lid is in the lower extreme of mounting groove.

Preferably, an air pump working chamber is formed among the sliding cylinder, the fixed piston and the first sleeve, an air flow channel is arranged between the first sleeve and the second sleeve, and the air flow channel is respectively communicated with the inside of the mounting groove and the air pump working chamber.

Preferably, a first air groove and a second air groove are formed in the outer side wall of the second sleeve, the first air groove surrounds the second sleeve, the upper end of the second air groove is communicated with the first air groove, the lower end of the second air groove is communicated with the shifting fork, the upper end face of the first sleeve is downwards sunken to form a third air groove, two ends of the third air groove penetrate through the inner side and the outer side of the first sleeve, the third air groove is communicated with the first air groove, and the first air groove, the second air groove and the third air groove form the air flow channel.

Preferably, the first air groove is located at an upper end edge of the outer side wall of the second sleeve.

Compared with the prior art, the utility model has the advantages of when fixed piston assembles with the lid, the joint piece enters into first recess through the second recess in, the joint piece can take place the level in first recess and rotate, when the in-process that the cylinder assembly that slides reciprocated bumps with fixed piston, the upper wall of first recess can restrict joint piece rebound for fixed piston is difficult to break away from the lid, and the stability of structure is better, safe and reliable.

Drawings

FIG. 1 is a schematic view of the present invention;

FIG. 2 is a schematic view of a partial structure of the present invention;

FIG. 3 is a schematic view of the partial explosion structure of the present invention;

fig. 4 is a schematic structural view of the cover body of the present invention;

FIG. 5 is an enlarged schematic view at A in FIG. 4;

fig. 6 is a schematic structural view of the fixed piston of the present invention;

fig. 7 is a schematic view of the partial cross-sectional structure of the present invention.

In the figure: 1. a cover body; 11. a concave cavity; 12. a first sleeve; 13. a slot; 131. a first groove; 132. a second groove; 133. a third gas tank; 2. a fixed piston; 21. a second sleeve; 22. a clamping block; 23. mounting grooves; 24. a shifting fork; 25. a valve; 251. a helical wing; 26. a silica gel pad; 27. a first gas tank; 28. a second gas tank; 3. a slide cylinder; 4. pressing the hands.

Detailed Description

The present invention will be described in further detail with reference to the following embodiments.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

The first embodiment is as follows: as shown in fig. 1-7, a lid of a vacuum preservation box comprises a lid body 1, a fixed piston 2, a sliding cylinder 3 and a handle 4, wherein a concave cavity 11 is arranged in the middle of the lid body 1, a first sleeve 12 is arranged in the middle of the concave cavity 11, the fixed piston 2 is arranged in the concave cavity 11 and is rotatably connected with the first sleeve 12, the sliding cylinder 3 is in up-and-down sliding fit with the fixed piston 2, and the handle 4 covers the upper end of the sliding cylinder 3.

In this embodiment, at least one slot 13 is disposed on the inner side wall of the first sleeve 12, the slot 13 includes a first groove 131 extending in the horizontal direction and a second groove 132 extending in the vertical direction, a lower end of the second groove 132 is communicated with one end of the first groove 131, an upper end of the second groove 132 penetrates through an upper end surface of the first sleeve 12, the middle portion of the fixed piston 2 is provided with a second sleeve 21 inserted into the first sleeve 12, the outer side wall of the second sleeve 21 is provided with clamping blocks 22 having the same number as that of the slots 13, the clamping blocks 22 enter the corresponding first groove 131 through the second groove 132, wherein the first groove 131 is divided into three sections, the three sections respectively correspond to a vacuum position, a reset position and an air release position, the second groove 132 corresponds to a cleaning position, further, the two slots 13 are disposed, and the two slots 13 are distributed in a central symmetry manner.

In this embodiment, the lower end of the second sleeve 21 is provided with a mounting groove 23, a fork 24 communicated with the mounting groove 23, a valve 25 and a silicone pad 26 provided with an air hole, the valve 25 is arranged in the mounting groove 23, a spiral wing 251 extending into the fork 24 is arranged outside the valve 25, and the silicone pad 26 covers the lower end of the mounting groove 23.

In this embodiment, an air pump working chamber is formed between the sliding cylinder 3, the fixed piston 2 and the first sleeve 12, an air flow channel is arranged between the first sleeve 12 and the second sleeve 21, the air flow channel is respectively communicated with the inside of the mounting groove 23 and the air pump working chamber, and air in the fresh-keeping box can be pumped out after entering the air pump working chamber through the mounting groove 23 and the air flow channel, or external air enters the fresh-keeping box through the air pump working chamber, the air flow channel and the mounting groove 23.

Example two: the rest parts are the same as the first embodiment, and the difference is that a first air groove 27 and a second air groove 28 are arranged on the outer side wall of the second sleeve 21, the first air groove 27 surrounds the second sleeve 21, the upper end of the second air groove 28 is communicated with the first air groove 27, the lower end of the second air groove 28 is communicated with the shifting fork 24, the upper end surface of the first sleeve 12 is downwards recessed to form a third air groove 133, two ends of the third air groove 133 penetrate through the inner side and the outer side of the first sleeve 12, the third air groove 133 is communicated with the first air groove 27, and the first air groove 27, the second air groove 28 and the third air groove 133 form an air flow channel.

In this embodiment, the first air groove 27 is located at the upper end edge of the outer side wall of the second sleeve 21.

The present invention has been described in detail with reference to the accompanying drawings, and it is obvious that the present invention is not limited by the above embodiments, and various improvements of the method concept and the technical solution of the present invention can be made without modification, or the present invention can be directly applied to other occasions without modification, and is within the protection scope of the present invention.

Claims

1. A vacuum fresh-keeping box cover, which comprises a cover body (1), a fixed piston (2), a sliding cylinder (3) and a press handle (4), a concave cavity (11) is arranged in the middle of the cover body (1), a first sleeve (12) is arranged in the middle of the concave cavity (11), the fixed piston (2) is arranged in the cavity (11) and is rotationally connected with the first sleeve (12), the sliding cylinder (3) is in up-and-down sliding fit with the fixed piston (2), the press handle (4) is covered at the upper end of the sliding cylinder (3), it is characterized in that the inner side wall of the first sleeve (12) is provided with at least one slot (13), the insertion groove (13) includes a first groove (131) extending in a horizontal direction and a second groove (132) extending in a vertical direction, the lower end of the second groove (132) is communicated with one end of the first groove (131), the upper end of the second groove (132) penetrates through the upper end face of the first sleeve (12), a second sleeve (21) inserted into the first sleeve (12) is arranged in the middle of the fixed piston (2), the outer side wall of the second sleeve (21) is provided with clamping blocks (22) the number of which is consistent with that of the slots (13), the clamping blocks (22) enter the corresponding first grooves (131) through the second grooves (132).

2. The vacuum preservation box cover according to claim 1, characterized in that the lower end of the second sleeve (21) is provided with a mounting groove (23), a shifting fork (24) communicated with the mounting groove (23), an air valve (25) and a silica gel pad (26) provided with an air hole, the air valve (25) is arranged in the mounting groove (23), the outer side of the air valve (25) is provided with a spiral wing (251) extending into the shifting fork (24), and the silica gel pad (26) covers the lower end of the mounting groove (23).

3. The vacuum preservation box cover according to claim 2, characterized in that an air pump working chamber is formed between the sliding cylinder (3), the fixed piston (2) and the first sleeve (12), an air flow channel is arranged between the first sleeve (12) and the second sleeve (21), and the air flow channel is respectively communicated with the inside of the mounting groove (23) and the air pump working chamber.

4. The vacuum crisper lid of claim 3, characterized in that a first air groove (27) and a second air groove (28) are provided on the outer side wall of the second sleeve (21), the first air groove (27) surrounds the second sleeve (21), the upper end of the second air groove (28) is communicated with the first air groove (27), the lower end of the second air groove (28) is communicated with the shift fork (24), the upper end of the first sleeve (12) is recessed downwards to form a third air groove (133), the two ends of the third air groove (133) penetrate through the inner and outer sides of the first sleeve (12), and the third air groove (133) is communicated with the first air groove (27), and the first air groove (27), the second air groove (28) and the third air groove (133) constitute the air flow channel.

5. A vacuum refreshing box lid according to claim 4, characterized in that the first air groove (27) is located at the upper end edge of the outer side wall of the second sleeve (21).