CN219193125U - Constant pressure fresh-keeping box - Google Patents

Abstract

The utility model discloses a constant-pressure preservation box, which comprises a box body and a sealing box cover, wherein the box body comprises a mounting through hole, an inner container, a placing groove, an outer circular tube, an inner air hole, a movable rod, an upper limiting ring, an upper air hole, an upper reset spring, an upper sealing ring, an upper sealing plug, a lower limiting ring, a lower air hole, a lower reset spring, a lower sealing ring and a lower sealing plug, and the sealing box cover is arranged at the box opening of the box body. The utility model has simple structure and reasonable design, and can automatically balance the air pressure inside and outside the fresh-keeping box.

Description

Constant pressure fresh-keeping box

[ field of technology ]

The utility model relates to the technical field of constant-pressure preservation boxes, in particular to the technical field of constant-pressure preservation boxes.

[ background Art ]

The preservation box is convenient and practical, and can store foods in different categories. Plastic boxes cannot be placed in microwave ovens and ovens because plastics at high temperatures produce substances that are harmful to humans. The plastic preservation box can be put into the preservation box. In addition, the toughened glass fresh-keeping box can be self-exploded when encountering extreme cold and extreme heat. In addition, the fresh-keeping box has various styles and sizes for selection. The square preservation box is suitable for a refrigerator door and can be used for storing various condiments and residual foods. The rectangular preservation box is provided with the water receiving plate, so that foods with water, such as fruits, vegetables and seafood, are easy to store. The round preservation box is suitable for storing sauce, sauce and various dishes. The various preservation boxes are matched for use, so that the refrigerator is tidier, foods are in an optimal preservation section for a long time, and the PVC food preservative film is very harmful to human bodies, because ethylhexyl amine (DEHA) in the components is easy to separate out and has cancerogenic action on the human bodies after entering the human bodies along with the foods. So that the food can be stored without being replaced by various preservation boxes. The refrigerator preservation box is beneficial to food preservation, and can ensure that people can keep foods isolated as much as possible and prevent cross contamination.

In life, the sealed preservation box is a preservation box commonly used in a refrigerator, the purpose of the sealed preservation box is to preserve food in a sealing mode, but when the sealed preservation box is used for preserving heat-released meal, the air in the sealed preservation box is expanded with heat and contracted with the temperature of the meal along with the reduction of the temperature of the meal, if the temperature of the meal is too high, the air pressure in the sealed preservation box is enhanced, the sealing box cover can be inflated upwards, if the temperature of the meal is reduced, the air pressure in the sealed preservation box is reduced, the sealing box cover is sunken downwards, air holes are formed in the current preservation box cover, people tend to forget to open the air holes or open the air holes at first, the sealing box cover is expanded upwards and sunken downwards because of the expansion and contraction of heat, the air holes are opened at first, the ice removing box which is impossible to stop is used for completely cooling the meal, generally, if the air holes are opened in the morning and evening, or taken down, the middle interval time is longer, the refrigerator is shifted to work after the preservation box is placed, the middle interval time is longer, the sealing box cover is opened, the air holes are needed to be opened automatically, the air holes are not needed to be balanced, and the fresh-keeping condition is needed to be opened, and the fresh-keeping condition is not needed to be balanced, and the fresh-keeping condition is easy to be opened, and the fresh-keeping condition is necessary.

[ utility model ]

The utility model aims to solve the problems in the prior art and provides a constant-pressure preservation box which can automatically balance the internal and external air pressure of the preservation box.

In order to achieve the aim, the utility model provides a constant-pressure fresh-keeping box, which comprises a box body and a sealing box cover, and comprises an installation through hole, an inner container, a placing groove, an outer circular pipe, an inner air hole, a movable rod, an upper limiting ring, an upper air hole, an upper reset spring, an upper sealing ring, an upper sealing plug, a lower limiting ring, a lower air hole, a lower reset spring, a lower sealing ring and a lower sealing plug, wherein the box opening of the box body is provided with the sealing box cover, the right end of the upper end surface of the sealing box cover is provided with the installation through hole, the inner container is internally provided with the inner container, the right end of the inner container is provided with the placing groove which is vertically arranged, the inner hole of the installation through hole is provided with the outer circular pipe which is vertically arranged, the lower end of the outer circular pipe stretches into the placing groove, the middle part of the inner circular pipe is provided with the coaxial inner circular pipe, the inner circular pipe can move along the axis of the outer circular pipe, the upper end surface of the inner circular pipe is provided with a plurality of inner air holes, the inner circular pipe inner hole is fixedly provided with the coaxial movable rod, an upper limit ring fixed in the inner hole of the outer circular tube is arranged above the inner circular tube, the upper limit ring is coaxial with the outer circular tube, a plurality of upper air holes are arranged on the upper end face of the upper limit ring, a coaxial upper reset spring is connected between the lower end face of the upper limit ring and the upper end face of the inner circular tube, the upper end of the movable rod sequentially penetrates through the inner hole of the upper reset spring and the inner hole of the upper limit ring, an upper seal ring fixed in the inner hole of the outer circular tube is arranged above the upper limit ring, the upper seal ring is coaxial with the outer circular tube, an upper seal plug fixed at the top end of the movable rod is arranged in the inner hole of the upper seal ring, the upper seal plug can move along the axis of the upper seal ring, a lower limit ring fixed in the inner hole of the outer circular tube is arranged below the inner circular tube, the lower limit ring is coaxial with the outer circular tube, a plurality of lower air holes are arranged on the upper end face of the lower limit ring, a coaxial lower reset spring is connected between the upper end face of the lower limit ring and the upper end face of the inner circular tube, the lower end of the movable rod sequentially passes through a lower reset spring inner hole and a lower limiting ring inner hole, a lower sealing ring fixed in the outer circular tube inner hole is arranged below the lower limiting ring, the lower sealing ring is coaxial with the outer circular tube, a lower sealing plug fixed at the bottom end of the movable rod is arranged in the lower sealing ring inner hole, and the lower sealing plug can move along the axis of the lower sealing ring in the lower sealing ring inner hole.

Preferably, the upper end face of the sealing box cover, the upper end face of the outer circular tube, the upper end face of the upper sealing ring and the upper end face of the upper sealing plug are coplanar, a round angle is formed between an inner hole of the upper sealing ring and the upper end face and a round angle is formed between the side wall of the upper sealing plug and the upper end face and the lower end face of the upper sealing plug, and the outer diameter of the upper sealing plug is larger than the outer diameter of the movable rod and the inner diameter of the upper limiting ring.

Preferably, the lower end face of the outer circular tube, the lower end face of the lower sealing ring and the lower end face of the lower sealing plug are coplanar, a round angle is formed between an inner hole of the lower sealing ring and the upper end face and the lower end face, the lower sealing plug is cylindrical, a round angle is formed between the side wall of the lower sealing plug and the upper end face and the lower end face, and the outer diameter of the lower sealing plug is larger than the outer diameter of the movable rod and the inner diameter of the lower limiting ring.

Preferably, the plurality of inner air holes, the plurality of upper air holes and the plurality of lower air holes are uniformly distributed in a circumference shape by taking the axis of the outer circular tube as the center of a circle.

Preferably, the inner container is box-shaped, and handles are arranged at two ends of the upper port of the inner container.

Preferably, the inner container is in a basket shape, and handles are arranged at two ends of the upper port of the inner container.

The utility model has the beneficial effects that: the utility model has simple structure and reasonable design, and can automatically balance the air pressure inside and outside the fresh-keeping box; through setting up the upper sealing plug that utilizes upper reset spring, lower reset spring spacing, lower sealing plug, when the inside and outside atmospheric pressure of fresh-keeping box is inconsistent, upper sealing plug, lower sealing plug can leave the upper sealing ring hole of blocking, lower sealing ring hole, and then the intercommunication of the inside and outside gaseous inside and outside the fresh-keeping box is realized, balanced the inside and outside atmospheric pressure of fresh-keeping box, simultaneously, after balanced inside and outside atmospheric pressure of box, upper reset spring, lower reset spring can remove the movable rod through the mode of elasticity removal pipe, and then make upper sealing plug, the lower sealing plug at movable rod both ends reset, upper sealing plug, lower sealing plug can block up upper sealing ring hole, lower sealing ring hole again, and then realize automatic balance fresh-keeping box inside and outside atmospheric pressure, do not need people to switch the gas pocket on the fresh-keeping box lid manually; through setting up sealing plug external diameter and be greater than movable rod external diameter, go up spacing ring internal diameter, lower sealing plug external diameter is greater than movable rod external diameter, lower spacing ring internal diameter and go up spacing ring, lower spacing ring's mode, when last reset spring, lower reset spring have the tendency of overstretching, go up spacing ring, lower spacing ring can limit the displacement of movable rod through the mode of interception last sealing plug, lower sealing plug, and then the position of pipe in the restriction, and then prevent that reset spring, lower reset spring from appearing excessive stretching, do benefit to and improve reset spring, lower reset spring's life.

The features and advantages of the present utility model will be described in detail by way of example with reference to the accompanying drawings.

[ description of the drawings ]

Fig. 1 is a front view of the constant pressure fresh keeping box of the present utility model.

[ detailed description ] of the utility model

Referring to fig. 1, the constant pressure fresh-keeping box of the utility model comprises a box body 1 and a sealing box cover 2, and comprises a mounting through hole 21, an inner container 3, a placing groove 31, an outer circular tube 4, an inner circular tube 41, an inner air hole 411, a movable rod 42, an upper limiting ring 43, an upper air hole 431, an upper return spring 432, an upper sealing ring 44, an upper sealing plug 45, a lower limiting ring 430, a lower air hole 4301, a lower return spring 4302, a lower sealing ring 440 and a lower sealing plug 450, wherein the box opening of the box body 1 is provided with the sealing box cover 2, the right end of the upper end surface of the sealing box cover 2 is provided with the mounting through hole 21, the inside of the box body 1 is provided with the inner container 3, the right end of the inner container 3 is provided with the placing groove 31 which is vertically arranged, the inner hole of the mounting through hole 21 is provided with the outer circular tube 4 which is vertically arranged, the lower end of the outer circular tube 4 stretches into the placing groove 31, the middle part of the inner hole of the outer circular tube 4 is provided with the coaxial inner circular tube 41, the inner circular tube 41 can move along the axis of the outer circular tube 4, the upper end surface of the inner circular tube 41 is provided with a plurality of inner air holes 411, the inner hole of the inner circular tube 41 is fixedly provided with a coaxial movable rod 42, the upper part of the inner circular tube 41 is provided with an upper limiting ring 43 fixed on the inner hole of the outer circular tube 4, the upper limiting ring 43 is coaxial with the outer circular tube 4, the upper end surface of the upper limiting ring 43 is provided with a plurality of upper air holes 431, a coaxial upper reset spring 432 is connected between the lower end surface of the upper limiting ring 43 and the upper end surface of the inner circular tube 41, the upper end of the movable rod 42 sequentially passes through the inner hole of the upper reset spring 432 and the inner hole of the upper limiting ring 43, the upper part of the upper limiting ring 43 is provided with an upper sealing ring 44 fixed on the inner hole of the outer circular tube 4, the upper sealing ring 44 is coaxial with the outer circular tube 4, the inner hole of the upper sealing ring 44 is provided with an upper sealing plug 45 fixed on the top of the movable rod 42, the upper sealing plug 45 can move along the axis of the upper sealing ring 44, the lower part of the inner circular tube 41 is provided with a lower limiting ring 430 fixed on the inner hole of the outer circular tube 4, the lower limiting ring 430 is coaxial with the outer circular tube 4, a plurality of lower air holes 4301 are formed in the upper end face of the lower limiting ring 430, a coaxial lower reset spring 4302 is connected between the upper end face of the lower limiting ring 430 and the upper end face of the inner circular tube 41, the lower end of the movable rod 42 sequentially penetrates through the inner hole of the lower reset spring 4302 and the inner hole of the lower limiting ring 430, a lower sealing ring 440 fixed in the inner hole of the outer circular tube 4 is arranged below the lower limiting ring 430, the lower sealing ring 440 is coaxial with the outer circular tube 4, a lower sealing plug 450 fixed at the bottom end of the movable rod 42 is arranged in the inner hole of the lower sealing ring 440, and the lower sealing plug 450 can move along the axis of the lower sealing ring 440 in the inner hole of the lower sealing ring 440.

The upper end face of the seal box cover 2, the upper end face of the outer circular tube 4, the upper end face of the upper seal ring 44 and the upper end face of the upper seal plug 45 are coplanar, a round angle is formed between an inner hole of the upper seal ring 44 and the upper and lower end faces, the upper seal plug 45 is cylindrical, a round angle is formed between the side wall of the upper seal plug 45 and the upper and lower end faces, and the outer diameter of the upper seal plug 45 is larger than the outer diameter of the movable rod 42 and the inner diameter of the upper limit ring 43.

The lower end face of the outer tube 4, the lower end face of the lower sealing ring 440 and the lower end face of the lower sealing plug 450 are coplanar, a round angle is formed between an inner hole of the lower sealing ring 440 and the upper and lower end faces, the lower sealing plug 450 is cylindrical, a round angle is formed between the side wall of the lower sealing plug 450 and the upper and lower end faces, and the outer diameter of the lower sealing plug 450 is larger than the outer diameter of the movable rod 42 and the inner diameter of the lower limiting ring 430.

Wherein, the inner air holes 411, the upper air holes 431 and the lower air holes 4301 are uniformly distributed in a circumference shape with the axis of the outer circular tube 4 as the center.

Wherein the inner container 3 is box-shaped, and handles 32 are arranged at two ends of the upper port of the inner container 3.

Wherein, the inner container 3 is in the shape of a basket, and handles 32 are arranged at two ends of the upper port of the inner container 3.

The working process of the utility model comprises the following steps:

the constant-pressure fresh-keeping box is in the working process;

embodiment one: storing fruits and vegetables; after the sealing box cover 2 is closed, if the air pressure in the box is increased, the inner air can push the lower sealing plug 450 upwards, so that the lower sealing plug 450 moves upwards to the upper part of the lower sealing ring 440, and the air in the box can be discharged along the inner holes of the lower sealing ring 440, the lower air holes 4301, the inner air holes 411, the upper air holes 431 and the inner holes of the upper sealing ring 44, so that the air pressure inside and outside the box is balanced; if the air pressure in the box is reduced, the external air will push down the upper sealing plug 45, so that the upper sealing plug 45 moves down below the upper sealing ring 44, and then the air in the box will enter the box along the inner hole of the upper sealing ring 44, the upper air hole 431, the inner air hole 411, the lower air hole 4301 and the inner hole of the lower sealing ring 440, so as to balance the air pressure inside and outside the box, and finally, after balancing the air pressure inside and outside the box, the upper return spring 432 and the lower return spring 4302 will move the movable rod 42 by moving the inner circular tube 41 through elastic force, so that the upper sealing plug 45 and the lower sealing plug 450 at two ends of the movable rod 42 will reset, and the inner hole of the upper sealing ring 44 and the inner hole of the lower sealing ring 440 will be plugged again by the upper sealing plug 45 and the lower sealing plug 450, so as to realize automatic balancing of the air pressure inside and outside the fresh-keeping box.

Embodiment one: storing hot dishes; after the sealing box cover 2 is closed, if the air pressure in the box is increased, the inner air will push the lower sealing plug 450 upwards, so that the lower sealing plug 450 moves upwards to above the lower sealing ring 440, and the air in the box will be discharged along the inner holes of the lower sealing ring 440, the lower air holes 4301, the inner air holes 411, the upper air holes 431 and the inner holes of the upper sealing ring 44, so as to balance the air pressure inside and outside the box; if the air pressure in the box is reduced, the external air will push down the upper sealing plug 45, so that the upper sealing plug 45 moves down below the upper sealing ring 44, and then the air in the box will enter the box along the inner hole of the upper sealing ring 44, the upper air hole 431, the inner air hole 411, the lower air hole 4301 and the inner hole of the lower sealing ring 440, so as to balance the air pressure inside and outside the box, and finally, after balancing the air pressure inside and outside the box, the upper return spring 432 and the lower return spring 4302 will move the movable rod 42 by moving the inner circular tube 41 through elastic force, so that the upper sealing plug 45 and the lower sealing plug 450 at two ends of the movable rod 42 will reset, and the inner hole of the upper sealing ring 44 and the inner hole of the lower sealing ring 440 will be plugged again by the upper sealing plug 45 and the lower sealing plug 450, so as to realize automatic balancing of the air pressure inside and outside the fresh-keeping box.

The utility model has simple structure and reasonable design, and can automatically balance the air pressure inside and outside the fresh-keeping box; by arranging the upper sealing plug 45 and the lower sealing plug 450 limited by the upper return spring 432 and the lower return spring 4302, when the internal and external air pressures of the preservation box are inconsistent, the upper sealing plug 45 and the lower sealing plug 450 can separate from the inner hole of the blocked upper sealing ring 44 and the inner hole of the blocked lower sealing ring 440 under the influence of the air pressure, so that the communication of the internal and external air of the preservation box is realized, the internal and external air pressures of the preservation box are balanced, and simultaneously, after the internal and external air pressures of the preservation box are balanced, the upper return spring 432 and the lower return spring 4302 can move the movable rod 42 in a mode of moving the inner circular tube 41 through elasticity, so that the upper sealing plug 45 and the lower sealing plug 450 at two ends of the movable rod 42 are reset, and the upper sealing plug 45 and the lower sealing plug 450 can block the inner hole of the upper sealing ring 44 and the inner hole of the lower sealing ring 440 again, so that the automatic balancing of the internal and external air pressures of the preservation box is realized, and the air holes on the preservation box cover do not need to be manually opened and closed by people; through setting up last sealing plug 45 external diameter and be greater than movable rod 42 external diameter, go up spacing ring 43 internal diameter, lower sealing plug 450 external diameter is greater than movable rod 42 external diameter, lower spacing ring 430 internal diameter and go up spacing ring 43, lower spacing ring 430's mode, when last reset spring 432, lower reset spring 4302 have the tendency of overstretching, go up spacing ring 43, lower spacing ring 430 can limit the displacement of movable rod 42 through the mode of interception last sealing plug 45, lower sealing plug 450, and then restrict the position of interior pipe 41, and then prevent that upper reset spring 432, lower reset spring 4302 from appearing excessive stretching, do benefit to the life that improves upper reset spring 432, lower reset spring 4302.

The above embodiments are illustrative of the present utility model, and not limiting, and any simple modifications of the present utility model fall within the scope of the present utility model.

Claims (6)

1. Constant pressure preservation box contains box body (1), sealed lid (2), its characterized in that: including installation through-hole (21), inner bag (3), standing groove (31), outer tube (4), interior tube (41), interior gas pocket (411), movable rod (42), go up spacing ring (43), go up gas pocket (431), go up reset spring (432), go up sealing ring (44), go up sealing plug (45), lower spacing ring (430), lower gas pocket (4301), lower reset spring (4302), lower sealing ring (440), sealing plug (450) down, the box mouth of box body (1) is equipped with sealed lid (2), sealed lid (2) up end right-hand member is equipped with installation through-hole (21), box body (1) inside is equipped with inner tube (3), inner tube (3) right-hand member is equipped with standing groove (31) of vertical setting, installation through-hole (21) hole is equipped with outer tube (4) of vertical setting, outer tube (4) lower extreme stretches into in standing groove (31), outer tube (4) hole middle part is equipped with coaxial interior pipe (41), and outer tube (41) hole along outer tube (4) axis activity, inner tube (41) hole is equipped with a plurality of interior hole (42) coaxial hole (41), an upper limiting ring (43) fixed in an inner hole of an outer circular tube (4) is arranged above an inner circular tube (41), the upper limiting ring (43) is coaxial with the outer circular tube (4), a plurality of upper air holes (431) are formed in the upper end face of the upper limiting ring (43), a coaxial upper reset spring (432) is connected between the lower end face of the upper limiting ring (43) and the upper end face of the inner circular tube (41), the upper end of a movable rod (42) sequentially penetrates through the inner hole of the upper reset spring (432) and the inner hole of the upper limiting ring (43), an upper sealing ring (44) fixed in the inner hole of the outer circular tube (4) is arranged above the upper limiting ring (43), the upper sealing ring (44) is coaxial with the outer circular tube (4), an upper sealing plug (45) fixed at the top end of the movable rod (42) is arranged in the inner hole of the upper limiting ring (44), the upper sealing plug (45) can move along the axis of the upper sealing ring (44), a lower limiting ring (430) fixed in the inner hole of the outer circular tube (4) is arranged below the inner circular tube (41), the lower limiting ring (430) is coaxial with the outer circular tube (4), the upper end face of the lower limiting ring (430) is provided with a plurality of upper air holes (430) fixed in the inner hole of the inner circular tube (4), and the upper end face of the upper end of the movable rod (430) sequentially penetrates through the inner hole (4302) and the lower end of the inner spring (2) The lower limiting ring (430) hole, lower limiting ring (430) below is equipped with lower sealing ring (440) of fixing in outer pipe (4) hole, and lower sealing ring (440) are coaxial with outer pipe (4), and lower sealing plug (450) of fixing in movable rod (42) bottom are equipped with to lower sealing ring (440) hole, and lower sealing plug (450) can be at lower sealing ring (440) hole along lower sealing ring (440) axis activity.

2. The constant pressure preservation box of claim 1, wherein: the sealing box comprises a sealing box cover (2), an outer circular tube (4), an upper end face, an upper sealing ring (44) and an upper sealing plug (45), wherein the upper end face, the upper sealing ring (44) and the upper end face are coplanar, a round angle is formed between an inner hole of the upper sealing ring (44) and the upper end face and a round angle is formed between the side wall of the upper sealing plug (45) and the upper end face and the lower end face, the outer diameter of the upper sealing plug (45) is larger than the outer diameter of a movable rod (42) and the inner diameter of an upper limiting ring (43).

3. The constant pressure preservation box of claim 1, wherein: the outer circular pipe (4) lower end face, the lower sealing ring (440) lower end face and the lower sealing plug (450) lower end face are coplanar, a round corner is formed between an inner hole of the lower sealing ring (440) and the upper end face and the lower end face, the lower sealing plug (450) is cylindrical, a round corner is formed between the side wall of the lower sealing plug (450) and the upper end face and the lower end face, and the outer diameter of the lower sealing plug (450) is larger than the outer diameter of the movable rod (42) and the inner diameter of the lower limiting ring (430).

4. The constant pressure preservation box of claim 1, wherein: the inner air holes (411), the upper air holes (431) and the lower air holes (4301) are uniformly distributed in a circumferential shape by taking the axis of the outer circular tube (4) as the center of a circle.

5. The constant pressure preservation box of claim 1, wherein: the inner container (3) is box-shaped, and handles (32) are arranged at two ends of an upper port of the inner container (3).

6. The constant pressure preservation box of claim 1, wherein: the inner container (3) is in a basket shape, and handles (32) are arranged at two ends of an upper port of the inner container (3).

Images