Improved preservation box

Abstract

The utility model discloses an improved preservation box, relates to the technical field of preservation boxes, and aims to solve the technical problem that a cover of a current preservation box is difficult to open due to the fact that air pressure difference is formed between lower air pressure in the current preservation box and air outside the current preservation box, the improved preservation box comprises a box body and a box cover, and the box body and the box cover are sealed and covered through a sealing strip. A groove is formed in one end of the box cover, a handle is arranged in the groove, the tail of the handle is rotationally connected with the groove through a rotating shaft, a pull ring is arranged at the head of the handle, a sealing plug is arranged at the position, close to the rotating shaft, of the bottom of the handle, a through hole is formed in the position, opposite to the sealing plug, in the groove, a rubber sleeve is movably connected in the through hole, and at least one ventilation channel is formed in the rubber sleeve. The sealing plug comprises a fixing part connected with the handle, a conical part is arranged at the other end of the fixing part, an annular protrusion is arranged at the joint of the conical part and the fixing part, and the rubber sleeve comprises a sliding part in sliding connection with the vent groove. The fresh-keeping box has the advantages that the fresh-keeping box can be opened at any angle, more labor is saved, and the sealing effect is good.

Description

Technical Field

[0001] The utility model relates to the technical field of fresh-keeping boxes, and more specifically, to an improved fresh-keeping box. Background Art

[0002] There are three types of food-saving boxes: one is a plastic food-saving box: made of resin material, generally with a temperature resistance range of: maximum temperature 120°C, minimum temperature -20°C; one is a tempered glass food-saving box: ordinary glass is tempered; the last one is a heat-resistant glass food-saving box, made of high borosilicate glass material.

[0003] When using a fresh-keeping box to store food, in order to ensure that the food is kept fresh, the fresh-keeping box needs to be sealed. In the sealed state, the lower air pressure inside the fresh-keeping box forms an air pressure difference with the external air. When opening the box, it is necessary to overcome the resistance caused by the air pressure difference, which makes the lid of the fresh-keeping box difficult to open and is inconvenient for users' daily use. In view of this, how to provide a fresh-keeping box that can be easily opened is particularly important. In view of this, we propose an improved fresh-keeping box. Utility Model Content

[0004] The utility model aims to overcome the deficiencies of the prior art, meet practical needs, and provide an improved fresh-keeping box to solve the technical problem that the lid of the fresh-keeping box is difficult to open due to the pressure difference between the lower air pressure inside the fresh-keeping box and the external air.

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions: an improved fresh-keeping box, comprising a box body and a box cover, wherein the box body and the box cover are sealed and covered by a sealing strip, a groove is provided at one end of the box cover, a handle is provided in the groove, the tail of the handle is rotatably connected to the groove through a rotating shaft, a pull ring is provided at the head of the handle, a sealing plug is provided at the bottom of the handle near the rotating shaft, a venting groove is provided in the groove at a position opposite to the sealing plug, and a rubber sleeve is movably connected in the through hole;

[0006] At least one ventilation channel is arranged on the rubber sleeve.

[0007] The utility model arranges the sealing plug at a side close to the rotating shaft so that when the sealing plug is pulled out, it can be rotated with the rotating shaft as the axis to form a lever effect, so that the force required to pull out the sealing plug is smaller and the pulling out of the sealing plug is more convenient.

[0008] Preferably, the sealing plug comprises a fixing portion connected to the handle, a conical portion is provided at the other end of the fixing portion, and an annular protrusion is provided at the connection between the conical portion and the fixing portion.

[0009] Preferably, the annular protrusion is a threaded protrusion or a circular protrusion.

[0010] Preferably, the rubber sleeve includes a sliding part slidably connected to the through hole, the top and bottom ends of the sliding part are respectively connected to the limiting part 1 and the limiting part 2, and the height between the limiting part 1 and the limiting part 2 is greater than the thickness of the box cover.

[0011] Preferably, the ventilation channel is provided in an interlayer of the sliding portion.

[0012] Preferably, the ventilation channel is provided on the surface of the sliding portion.

[0013] Preferably, the stroke height of one of the air ports of the ventilation channel is greater than the bottom height of the groove, and the ventilation channel extends from the first limiting portion to the bottom surface of the second limiting portion and is connected to the interior of the box body.

[0014] Preferably, an inner wall of the limiting portion is provided with an annular groove, and the annular groove is movably engaged with the annular protrusion.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] 1. The utility model can increase the snapping force and friction force between the two and improve the tightness between the two by setting the cooperation between the annular groove and the annular protrusion when the sealing plug is inserted into the rubber sleeve. At the same time, it can utilize its large friction force to simultaneously drive the sliding part of the rubber sleeve to move upward with the sealing plug when the sealing plug is pulled out, so that the air port at one end of the ventilation channel can be exposed to the outside air, so that the box body is connected with the outside air, thereby reducing the pressure difference and reducing the resistance to the removal of the sealing plug.

[0017] 2. The utility model also provides a tapered portion on the sealing plug, so that when the sealing plug is inserted into the rubber sleeve clockwise, the tapered shape can make the sealing plug more convenient to insert therein. At the same time, the sealing plug is arranged at a position close to the rotating shaft, so that when the sealing plug is pulled, the lever principle formed between the rotating shaft and the sealing plug can be used to reduce the force required to act on the sealing plug, so that it is more labor-saving and convenient to open the fresh-keeping box.

[0018] 3. The utility model utilizes the principle of labor-saving lever, sets the rotating shaft as the fulcrum, and applies an upward force to the pull ring on the handle head by single-hand operation, so that the tail edge of the handle at the other end of the fulcrum abuts against the edge of the box body mouth, thereby assisting the resistance point to easily separate the box body and the box cover.

[0019] 4. The handle head of the container of the utility model utilizes the pull ring design of the traditional can, so that the user can use the thumb, index finger, or middle finger to exert an upward force at any angle to separate the box cover and the box body. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the closed state of the utility model;

[0021] Figure 2 This is a schematic diagram of the open state of the utility model;

[0022] Figure 3 It is a structural sectional view of the utility model;

[0023] Figure 4 It is an enlarged view of the structural details of the utility model;

[0024] Figure 5 This is a schematic diagram of the first implementation structure of the sealing plug and the rubber sleeve in the utility model.

[0025] Figure 6 This is a schematic diagram of the second implementation structure of the sealing plug and the rubber sleeve in the utility model.

[0026] Figure 7 This is the second implementation structure of the rubber sleeve in the utility model;

[0027] Figure 8 This is a schematic diagram of the structure of the handle and the box body forming a lever in the utility model;

[0028] Description of the numbers in the figure:

[0029] 1. Box body; 2. Box cover; 3. Groove; 4. Handle; 5. Pull ring; 6. Sealing plug; 601. Fixing part; 602. Conical part; 603. Annular protrusion; 7. Through hole; 8. Rubber sleeve; 801. Sliding part; 802. Limiting part 1; 803. Limiting part 2; 804. Annular groove; 9. Ventilation channel. DETAILED DESCRIPTION

[0030] like Figures 1 to 8 As shown, the utility model relates to an improved fresh-keeping box, a box body 1 and a box cover 2, the box body 1 and the box cover 2 are sealed together by a sealing strip, a groove 3 is provided at one end of the box cover 2, a handle 4 is provided in the groove 3, the tail of the handle 4 is rotatably connected to the groove 3 through a rotating shaft, and a pull ring 5 is provided at the head of the handle 4. It is worth noting that the handle of the present invention can be set at any position on one side of the box cover, a sealing plug 6 is provided at the bottom of the handle 4 near the rotating shaft, the sealing plug 6 includes a fixing portion 601 connected to the handle 4, a tapered portion 602 is provided at the other end of the fixing portion 601, an annular protrusion 603 is provided at the connection between the tapered portion 602 and the fixing portion 601, and the annular protrusion 603 is a threaded protrusion or a circular protrusion, a through hole 7 is provided in the groove 3 at a position relative to the sealing plug 6, a rubber sleeve 8 is movably connected in the through hole 7, and at least one ventilation channel 9 is arranged on the rubber sleeve 8.

[0031] The utility model provides a sealing strip, so that when the box cover 2 and the box body 1 are closed, the connection between them can be sealed by the sealing sleeve, so that the food contained in the box body 1 can be prevented from spilling out and the taste of the food inside can be isolated, thereby improving the sealing performance of the connection between the box body 1 and the box cover 2; at the same time, by providing a tapered portion 602 on the sealing plug 6, when the sealing plug 6 is inserted into the rubber sleeve 8 clockwise, its tapered shape can be utilized to make it more convenient to insert the sealing plug 6 therein; at the same time, the sealing plug 6 is arranged at a position close to the rotating shaft, so that when the sealing plug 6 is pulled, the force required to pull the sealing plug 6 can be reduced by the lever principle formed between the rotating shaft and the sealing plug 6, so that it is more labor-saving and convenient to open the fresh-keeping box.

[0032] In the embodiment of the utility model, the rubber sleeve 8 includes a sliding portion 801 slidably connected to the through hole 7, the top and bottom ends of the sliding portion 801 are respectively connected to the limiting portion 1 802 and the limiting portion 2 803, the height between the limiting portion 1 802 and the limiting portion 2 803 is greater than the thickness of the box cover 2, the ventilation channel 9 extends from the limiting portion 1 802 to the bottom surface of the limiting portion 2 803 and is connected to the inside of the box body 1, and the inner wall of the limiting portion 1 802 is provided with an annular groove 804, and the annular groove 804 is movably engaged with the annular protrusion 603;

[0033] like Figure 4 and Figure 5 In the first embodiment of the sealing plug 6 and the rubber sleeve 8, the annular protrusion 603 is a threaded protrusion, and the annular groove 804 is a threaded groove; Figure 6 In the first embodiment of the sealing plug 6 and the rubber sleeve 8 shown in the figure, the annular protrusion 603 is a circular protrusion, and the annular groove 804 is a circular groove; by setting the concave-convex cooperation between the annular groove 804 and the annular protrusion 603, the friction between the two can be increased when the sealing plug 6 is inserted into the rubber sleeve 8, and the tightness between the two can be improved. At the same time, its greater friction can be utilized. When the sealing plug 6 is pulled out, the sliding part 801 of the rubber sleeve 8 can be driven to move upward with the sealing plug 6, so that the air port at one end of the ventilation channel 9 can be exposed to the outside air, so that the box body 1 is connected with the outside air, thereby reducing the pressure difference and reducing the resistance to the removal of the sealing plug 6.

[0034] Working principle: This embodiment provides an improved fresh-keeping box. When in use, the box cover 2 is first placed on the upper end surface of the box body 1, and then the handle 4 is rotated clockwise to drive the sealing plug 6 to be inserted into the rubber sleeve 8 through the tapered portion 602, and the sealing plug 6 and the rubber sleeve 8 are tightly connected through the fit between the annular protrusion 603 and the annular groove 804. Then, when it is necessary to open the box cover 2, the pull ring 5 can be inserted and the handle 4 can be rotated counterclockwise to drive the sealing plug 6 to deflect counterclockwise. During the deflection process, the annular protrusion 603 and the annular groove are fitted together. The friction between the grooves 804 drives the sliding part 801 to move upward, so that the air port at one end of the ventilation channel 9 is exposed to the outside air, so that the air inside the box body 1 is connected with the outside air, thereby reducing the air pressure difference between the inside and outside of the box body 1, and then reducing the resistance to the sealing plug 6, which can facilitate the removal of the sealing plug 6. At the same time, the principle of force-saving lever is utilized, and the rotating shaft is set as the fulcrum. At this time, one-handed operation applies an upward force to the pull ring on the head of the handle, so that the tail edge of the handle at the other end of the fulcrum abuts against the edge of the box body mouth, thereby helping the box body and the box cover to be easily separated.

[0035] The embodiments of the present invention disclose preferred embodiments, but are not limited thereto. A person skilled in the art can easily understand the spirit of the present invention based on the above embodiments and make different extensions and changes. However, as long as they do not deviate from the spirit of the present invention, they are all within the protection scope of the present invention.

Claims

1. An improved fresh-keeping box, comprising a box body (1) and a box cover (2), wherein the box body (1) and the box cover (2) are sealed together by a sealing strip, characterized in that: A groove (3) is provided at one end of the box cover (2), a handle (4) is provided in the groove (3), the tail of the handle (4) is rotatably connected to the groove (3) via a rotating shaft, a pull ring (5) is provided at the head of the handle (4), a sealing plug (6) is provided at the bottom of the handle (4) near the rotating shaft, a through hole (7) is provided in the groove (3) at a position opposite to the sealing plug (6), and a rubber sleeve (8) is movably connected in the through hole (7); At least one ventilation channel (9) is arranged on the rubber sleeve (8).

2. An improved fresh-keeping box according to claim 1, characterized in that: The sealing plug (6) comprises a fixing portion (601) connected to the handle (4), the fixing portion (601) having a conical portion (602) at the other end, and an annular protrusion (603) at the connection between the conical portion (602) and the fixing portion (601).

3. An improved fresh-keeping box according to claim 2, characterized in that: The annular protrusion (603) is a threaded protrusion or a circular protrusion.

4. An improved fresh-keeping box according to claim 3, characterized in that: The rubber sleeve (8) comprises a sliding portion (801) slidably connected to the through hole (7), the top and bottom ends of the sliding portion (801) are respectively connected to a limiting portion 1 (802) and a limiting portion 2 (803), and the height between the limiting portion 1 (802) and the limiting portion 2 (803) is greater than the thickness of the box cover (2).

5. An improved fresh-keeping box according to claim 4, characterized in that: The ventilation channel (9) is arranged in the interlayer of the sliding part (801).

6. The improved fresh-keeping box according to claim 4, characterized in that: The ventilation channel (9) is provided on the surface of the sliding portion (801).

7. An improved fresh-keeping box according to claim 5 or 6, characterized in that: The travel height of the ventilation channel (9) is greater than the bottom height of the groove (3); the ventilation channel (9) extends from the first limiting portion (802) to the bottom surface of the second limiting portion (803) and is in communication with the interior of the box body (1).

8. The improved fresh-keeping box according to claim 5, characterized in that: An annular groove (804) is provided on the inner wall of the first limiting portion (802), and the annular groove (804) is movably engaged with the annular protrusion (603).

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