阅读说明：本技术 一种气调库软籽石榴的保存方法 (Preservation method of soft-seed pomegranate in air-conditioned cold store ) 是由 李玉英 常玮 张婉 高宛莉 马艾全 韩雪梅 张君 朱延峰 于 2019-10-10 设计创作，主要内容包括：本发明公开了一种气调库软籽石榴的保存方法,属于石榴保存技术领域,包括以下步骤：步骤1：在软籽石榴入库前将气调保鲜库内部使用酒精清理干净,并通风晾干；步骤2：将软籽石榴放入气调库内；步骤3：调整气调库内的氧气浓度为3％,二氧化碳浓度为3％,氮气浓度为94％；步骤4：通过气压控制器将库内压力调整至10-70mmHg,并通过空调将库内温度降至2-3℃；步骤5：将装有软籽石榴的收集箱移出,软籽石榴出后一周苏醒,可以全部出售,也可以转到冷库,慢慢销售。本发明解决了现有的软籽石榴保存时间短的问题,同时也实现了对气调库平衡袋的保护,有效延长气调库平衡袋的使用寿命,保证软籽石榴存放过程的顺利进行。(The invention discloses a preservation method of soft-seed pomegranates in an air-conditioned cold store, which belongs to the technical field of pomegranate preservation and comprises the following steps: step 1: cleaning the interior of the modified atmosphere preservation warehouse with alcohol before warehousing the soft-seed pomegranates, and ventilating and drying; step 2: putting the soft-seed pomegranate into a controlled atmosphere storehouse; and step 3: adjusting the oxygen concentration to be 3%, the carbon dioxide concentration to be 3% and the nitrogen concentration to be 94% in the controlled atmosphere storage; and 4, step 4: adjusting the pressure in the warehouse to 10-70mmHg by an air pressure controller, and reducing the temperature in the warehouse to 2-3 ℃ by an air conditioner; and 5: the collecting box with the soft seed pomegranate is removed, the soft seed pomegranate revives one week after being taken out, and the soft seed pomegranate can be completely sold or can be slowly sold in a cold storage. The invention solves the problem of short preservation time of the existing soft seed pomegranate, simultaneously realizes the protection of the balance bag of the air-conditioned cold store, effectively prolongs the service life of the balance bag of the air-conditioned cold store and ensures the smooth preservation process of the soft seed pomegranate.)

1. The preservation method of the soft seed pomegranate in the controlled atmosphere storage is characterized by comprising the following steps:

step 1: cleaning the interior of the modified atmosphere preservation warehouse with alcohol before warehousing the soft-seed pomegranates, and ventilating and drying;

step 2: putting the soft-seed pomegranate into a controlled atmosphere storehouse;

and step 3: adjusting the oxygen concentration to be 3%, the carbon dioxide concentration to be 3% and the nitrogen concentration to be 94% in the controlled atmosphere storage;

and 4, step 4: adjusting the pressure in the warehouse to 10-70mmHg by an air pressure controller, and reducing the temperature in the warehouse to 2-3 ℃ by an air conditioner;

and 5: the collecting box with the soft seed pomegranate is removed, the soft seed pomegranate revives one week after being taken out, and the soft seed pomegranate can be completely sold or can be slowly sold in a cold storage.

2. The controlled atmosphere storage for implementing the soft seed pomegranate preservation method of claim 1 comprises a controlled atmosphere storage main body, wherein the controlled atmosphere storage main body comprises a storage room (1) and a control room (2) arranged on one side of the storage room (1), a humidifier (7) and an air conditioner (8) are installed in the storage room (1), a container (18) for storing the soft seed pomegranate is further placed in the storage room (1), a balance bag (13) is installed outside the storage room (1), the balance bag (13) is communicated with the storage room (1) through a balance pipe, a control room is arranged in the control room (2), a nitrogen generator (4), an air pressure controller (5), a carbon dioxide remover (6), a temperature and humidity detector (10), an air pressure detector (11) and a control panel (9) are installed in the control room, and the nitrogen generator (4), The device is characterized in that a sealing ring (16) is arranged on the part, located in the storage room (1), of the air pressure controller (5), the carbon dioxide remover (6), the temperature and humidity detector (10) and the air pressure detector (11), the sealing ring (16) is arranged on the part, located in the storage room (1), of the air pressure detector (11), the openable door body (3) is arranged on the storage room (1) and the control room (2), the buffer device (26) is integrally formed by two circular truncated cone structures which are arranged in bilateral symmetry and a cylinder structure arranged between the two circular truncated cone structures, the outer diameter of each circular truncated cone structure is equal to the outer diameter of one side, opposite to the two circular truncated cones, a buffer cavity is arranged in the buffer device (26), the buffer cavity is communicated with the inside of the balance pipe, the buffer cavity is communicated with the balance bag (13) through two symmetrically arranged air guide pipes (19), and one end, close to the sealing slide block (23), of each air guide pipe (19) is communicated with the Pipe (21) and the inside intercommunication of cushion chamber, the buffering intracavity slides and is provided with sealed slider (23), the both sides of sealed slider (23) all link to each other with the cushion chamber inner wall through main buffer spring (22) that the symmetry set up, sealed slider (23) will two first communicating pipe (20) and two the second communicating pipe (21) seals with the intercommunication position of cushion chamber, and is located each other do not communicate between the cushion chamber of sealed slider (23) one side and the cushion chamber that is located sealed slider (23) opposite side.

3. The controlled atmosphere storage for implementing the soft seed pomegranate preservation method according to claim 2, wherein a door is hinged to the bottom of one side of the container (18) through a hinge, two connecting blocks (30) are symmetrically and fixedly installed on the door, two connecting plates matched with the connecting blocks (30) are symmetrically and integrally formed on the container (18), the connecting blocks (30) are detachably connected with the corresponding connecting plates through bolts (31), and a plurality of air holes (29) are formed in the container (18) and the baffle plate in a penetrating manner.

4. The controlled atmosphere storage according to claim 2, wherein a protective shell (12) is fixedly arranged at a position of the storage room (1) close to the balance bag (13), and a cavity for placing the balance bag (13) is arranged in the protective shell (12).

5. The controlled atmosphere storage for implementing the soft seed pomegranate preservation method according to claim 4, wherein two fixing frames (14) are symmetrically welded on the protective shell (12), a connecting seat (15) is welded at the end part of each fixing frame (14) far away from one end of the protective shell (12), and each connecting seat (15) is fixedly installed outside the storage room (1) through symmetrically arranged connecting bolts.

6. The air-conditioned cold store for implementing the soft seed pomegranate preservation method according to claim 2, wherein circular truncated cone-shaped cavities are arranged in both circular truncated cone structures, cylindrical cavities communicated with the circular truncated cone-shaped cavities are arranged in the cylindrical structure, the circular truncated cone-shaped cavities and the cylindrical cavities are matched to form a buffer cavity, the sealing slider (23) is slidably arranged in the buffer cavity, and the minimum inner diameter of the circular truncated cone-shaped cavities is just equal to the inner diameter of the cylindrical cavity.

7. The controlled atmosphere storage for implementing the soft seed pomegranate preservation method according to claim 6, wherein two sliding pieces (25) are symmetrically and slidably arranged in the two truncated cone-shaped cavities, and each sliding piece (25) is connected with the inner wall of the corresponding truncated cone-shaped cavity through an auxiliary buffer spring (24).

8. The controlled atmosphere storage for implementing the soft seed pomegranate preservation method according to claim 7, wherein two first guide rods (27) are symmetrically and fixedly arranged in the buffer cavity, the sealing sliding block (23) is sleeved on the two first guide rods (27), two second guide rods (28) are symmetrically and fixedly arranged in each truncated cone-shaped cavity, and each sliding piece (25) is sleeved on the corresponding second guide rod (28).

9. The controlled atmosphere storage according to claim 2, wherein the wall of the storage room (1) is internally provided with a heat preservation cavity, and heat preservation materials (17) are arranged in the heat preservation cavity.

Technical Field

The invention relates to the technical field of pomegranate preservation, in particular to a preservation method of soft-seed pomegranates in an air-conditioned cold store.

Background

As is known, modified atmosphere preservation is a technology for achieving the purpose of storage and preservation by controlling the gas ratio, and the modified atmosphere preservation technology is a technology for prolonging the storage life and shelf life of food by adjusting environmental gas, and the basic principle is as follows: in a certain closed system, regulating gas different from normal atmospheric components is obtained through various regulating modes, physiological and biochemical processes and activities of microorganisms which cause food spoilage are inhibited, fruits are refrigerated and stored by adopting controlled atmosphere freshness preservation, the quality level of the fruits can be favorably ensured, the fruits can be regulated, produced and sold, and are evenly marketed, the loss of the pressure price in harvesting busy seasons can be avoided or reduced, the value-rising benefit in selling busy seasons in the future can be obtained, meanwhile, the pomegranate loss in circulation can be reduced, the pomegranate fruit contains various nutritional ingredients required by human bodies, and the fruits contain vitamin C and vitamin B complex, organic acid, saccharides, protein, fat, mineral substances such as calcium, phosphorus, potassium and the like.

As with other fruits, pomegranate needs to be preserved for a long time, and the most common method at present is to preserve pomegranate in a controlled atmosphere storage, and a breathing bag of the controlled atmosphere storage needs to be installed in order to maintain the internal pressure balance in the controlled atmosphere storage.

The existing air-conditioned cold store balancing bag is directly communicated with a pipeline installed on an air-conditioned cold store, so when the pressure in the air-conditioned cold store changes, the pressure directly acts on the balancing bag without buffering, and therefore the problem of short service life of the bag body can be caused.

Disclosure of Invention

The invention aims to solve the defects in the prior art, such as: the prior air-conditioned cold store balancing bag is directly communicated with a pipeline arranged on the air-conditioned cold store, so when the pressure in the air-conditioned cold store changes, the pressure directly acts on the balancing bag without buffering, thereby causing the problem of short service life of the bag body, and once the balancing bag has problems in the preservation process of the air-conditioned cold store, the pomegranate in the whole store can be improperly preserved, thereby causing poor preservation effect.

In order to achieve the purpose, the invention adopts the following technical scheme:

a preservation method of soft seed pomegranates in a controlled atmosphere storage comprises the following steps:

step 1: cleaning the interior of the modified atmosphere preservation warehouse with alcohol before warehousing the soft-seed pomegranates, and ventilating and drying;

step 2: putting the soft-seed pomegranate into a controlled atmosphere storehouse;

and step 3: adjusting the oxygen concentration to be 3%, the carbon dioxide concentration to be 3% and the nitrogen concentration to be 94% in the controlled atmosphere storage;

and 4, step 4: adjusting the pressure in the warehouse to 10-70mmHg by an air pressure controller, and reducing the temperature in the warehouse to 2-3 ℃ by an air conditioner;

and 5: the collecting box with the soft seed pomegranate is removed, the soft seed pomegranate revives one week after being taken out, and the soft seed pomegranate can be completely sold or can be slowly sold in a cold storage.

A controlled atmosphere storage for implementing the soft seed pomegranate preservation method comprises a controlled atmosphere storage main body, wherein the controlled atmosphere storage main body consists of a storage room and a control room arranged on one side of the storage room, a humidifier and an air conditioner are installed in the storage room, a container for storing the soft seed pomegranate is also placed in the storage room, a balance bag is installed outside the storage room and communicated with the storage room through a balance pipe, a nitrogen generator, an air pressure controller, a carbon dioxide remover, a temperature and humidity detector, an air pressure detector and a control panel are installed in the control room, sealing rings are installed on the nitrogen generator, the air pressure controller, the carbon dioxide remover, the temperature and humidity detector and the air pressure detector in the storage room, openable door bodies are arranged on the storage room and the control room, and a buffer device is installed on the balance pipe, the buffer device is composed of two truncated cone structures which are arranged symmetrically left and right and a cylinder structure which is arranged between the two truncated cone structures, the outer diameter of the circular truncated cone structure is equal to the outer diameter of the opposite side of the two circular truncated cones, a buffer cavity is arranged in the buffer device, the buffer cavity is communicated with the interior of the balance tube, the buffer cavity is communicated with the balance bag through two symmetrically arranged air ducts, and one end of each air duct close to the sealing slide block is communicated with the inside of the buffer cavity through a first communicating pipe and a second communicating pipe, a sealing slide block is arranged in the buffer cavity in a sliding way, both sides of the sealing slide block are connected with the inner wall of the buffer cavity through main buffer springs which are symmetrically arranged, the sealing slide block seals the communication positions of the two first communication pipes and the two second communication pipes and the buffer cavity, and the buffer cavity on one side of the sealing slide block is not communicated with the buffer cavity on the other side of the sealing slide block.

Preferably, the bottom of container one side has the shutter through the hinge, symmetry fixed mounting has two connecting blocks on the shutter, symmetry integrated into one piece has two connecting plates that match with the connecting block on the container, can dismantle through the bolt between connecting block and the connecting plate that corresponds and link to each other, all run through on container and the baffle and seted up a plurality of bleeder vents.

Preferably, a protective shell is fixedly installed at a position, close to the balance bag, of the storage room, and a cavity for placing the balance bag is formed in the protective shell.

Preferably, the protective housing is symmetrically welded with two fixing frames, each fixing frame is welded with a connecting seat at the end part far away from one end of the protective housing, and each connecting seat is fastened and installed outside the storage room through connecting bolts symmetrically arranged.

Preferably, circular truncated cone shaped cavities are arranged in the two circular truncated cone body structures, cylindrical cavities communicated with the two circular truncated cone shaped cavities are arranged in the cylindrical structures, the two circular truncated cone shaped cavities and the cylindrical cavities are matched to form a buffer cavity, the sealing sliding block is arranged in the buffer cavity in a sliding mode, and the minimum inner diameter of the two circular truncated cone shaped cavities is just equal to the inner diameter of the cylindrical cavity.

Preferably, two sliding sheets are symmetrically arranged in the circular truncated cone-shaped cavity in a sliding manner, and each sliding sheet is connected with the corresponding inner wall of the circular truncated cone-shaped cavity through an auxiliary buffer spring.

Preferably, two first guide rods are symmetrically and fixedly arranged in the buffer cavity, the sealing sliding block is sleeved on the two first guide rods, two second guide rods are symmetrically and fixedly arranged in each circular truncated cone-shaped cavity, and each sliding sheet is sleeved on the corresponding second guide rod.

Preferably, a heat preservation cavity is arranged in the wall body of the storage room, and heat preservation materials are installed in the heat preservation cavity.

Compared with the prior art, the invention has the beneficial effects that:

1. the invention aims to inhibit the aerobic respiration of the soft seed pomegranate and effectively inhibit the anaerobic respiration of the soft seed pomegranate by controlling the oxygen concentration, the carbon dioxide concentration and the nitrogen concentration in the controlled atmosphere storage, thereby realizing the effective fresh keeping of the soft seed pomegranate;

2. according to the invention, by controlling the pressure in the controlled atmosphere storage, the low-pressure reduction treatment of the controlled atmosphere storage is maintained, so that the gas components in the plant tissues can be promoted to diffuse outwards, the speed of the gas diffusing outwards in the plant tissues is in direct proportion to the partial pressure difference of the gas inside and outside the tissues and the diffusion coefficient of the gas, and the diffusion coefficient is in inverse proportion to the external pressure, so that the pressure reduction treatment can greatly accelerate the outward diffusion of ethylene in the tissues, reduce the content of endogenous ethylene, release more ethylene when the maturity is higher, and accelerate the maturation and aging of the soft-seed pomegranate when the ethylene is too high, thereby affecting the quality, and the low-pressure environment is favorable for prolonging the preservation time of the;

3. the temperature in the storage room is adjusted to be 2-3 ℃ suitable for the soft seed pomegranates through the air conditioner, the humidity in the storage room is adjusted to be 80-90% suitable for the soft seed pomegranates through the humidifier, so that an environment suitable for storing the soft seed pomegranates is created, the soft seed pomegranates are stored, are taken out of the storage room in the whole storage room, are revived one week after being taken out, can be completely sold, can be transferred to a refrigeration house for slow sale, can be transported in the reviving period, and does not affect the quality;

4. the air pressure stabilizing device realizes the air pressure stability in the storage room through the sealing slide block, the first guide rod, the first communicating pipe, the second communicating pipe, the air guide pipe and the balance bag, and has a certain buffering effect, thereby effectively avoiding the problem that the service life of the fixing frame is short because the pressure of the air pressure directly acts on the fixing frame;

5. the invention improves the buffering effect of the buffering device through the matching of the sliding sheet, the auxiliary buffering spring and the second guide rod, when low pressure occurs in the storage room, the sealing slide block can slide towards the direction close to the storage room to enable the four main buffering springs to generate adaptive deformation, when the negative pressure is larger, the sealing slide block can press the auxiliary buffering springs corresponding to the two sliding sheets against the two sliding sheets, the sealing slide block slides into the cylindrical cavity close to the storage room, the sealing slide block and the cylindrical cavity generate gaps, the balance pipe is communicated again, the two first communicating pipes and the two second communicating pipes are communicated with the buffering cavity again, when high pressure occurs in the storage room, the sealing slide block can slide towards the direction far away from the storage room to enable the four main buffering springs to generate adaptive deformation, the two second communicating pipes are communicated with the buffering cavity firstly, along with the continuation of balanced bag slides, two first communicating pipes also communicate with the cushion chamber, and gas gets into the air duct from first communicating pipe and second communicating pipe to in sending into balanced bag by the air duct, when pressure was too big, make sealed slider slide in keep away from the cylindrical intracavity of depositing between, sealed slider appears the gap with this department's chamber this moment, thereby can realize depositing interior atmospheric pressure balance between fast, and promoted buffering effect.

Drawings

FIG. 1 is a schematic diagram of the internal structure of a controlled atmosphere storage for implementing the method for preserving soft-seed pomegranates according to the present invention;

FIG. 2 is an enlarged view of the structure at A in FIG. 1;

fig. 3 is an enlarged view of the structure at B in fig. 1.

In the figure: the device comprises a storage room 1, a control room 2, a door 3, a nitrogen generator 4, an air pressure controller 5, a carbon dioxide remover 6, a humidifier 7, an air conditioner 8, a control panel 9, a temperature and humidity detector 10, an air pressure detector 11, a protective shell 12, a balance bag 13, a fixing frame 14, a connecting seat 15, a sealing ring 16, a heat insulation material 17, a container 18, an air duct 19, a first communicating pipe 20, a second communicating pipe 21, a main buffer spring 22, a sealing sliding block 23, an auxiliary buffer spring 24, a sliding sheet 25, a buffer device 26, a first guide rod 27, a second guide rod 28, air holes 29, a connecting block 30 and a bolt 31.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

A preservation method of soft seed pomegranates in a controlled atmosphere storage comprises the following steps:

step 1: cleaning the interior of the modified atmosphere preservation warehouse with alcohol before warehousing the soft-seed pomegranates, and ventilating and drying;

step 2: putting the soft-seed pomegranate into a controlled atmosphere storehouse;

and step 3: adjusting the oxygen concentration to be 3%, the carbon dioxide concentration to be 3% and the nitrogen concentration to be 94% in the controlled atmosphere storage;

and 4, step 4: adjusting the pressure in the warehouse to 10-70mmHg by an air pressure controller, and reducing the temperature in the warehouse to 2-3 ℃ by an air conditioner;

and 5: the collecting box containing the soft seed pomegranates is removed, the soft seed pomegranates revive for one week after being taken out, and the soft seed pomegranates can be completely sold or transferred to a refrigeration house for slow sale;

a controlled atmosphere storage for implementing the soft seed pomegranate preservation method comprises a controlled atmosphere storage main body, referring to FIGS. 1-3, the controlled atmosphere storage main body is composed of a storage room 1 and a control room 2 arranged at one side of the storage room 1, a humidifier 7 and an air conditioner 8 are arranged in the storage room 1, a container 18 for storing the soft seed pomegranate is also arranged in the storage room 1, a balance bag 13 is arranged outside the storage room 1, the balance bag 13 is communicated with the storage room 1 through a balance pipe, a nitrogen generator 4, an air pressure controller 5, a carbon dioxide remover 6, a temperature and humidity detector 10, an air pressure detector 11 and a control panel 9 are arranged in the control room 2, sealing rings 16 are arranged on the parts, located in the storage room 1, of the nitrogen generator 4, the air pressure controller 5, the carbon dioxide remover 6, the temperature and humidity detector 10 and the air pressure detector 11, and door bodies 3 capable of being opened are arranged on the storage room 1 and the control room 2;

install buffer 26 on the balancing pipe, buffer 26 comprises two round platform body structures that bilateral symmetry set up and cylinder structure an organic whole that sets up between two round platform body structures, the external diameter of round platform body structure equals with the external diameter of two relative one sides of round platform body, be provided with the cushion chamber in buffer 26, the inside intercommunication of cushion chamber and balancing pipe, the cushion chamber is through two air ducts 19 and balanced bag 13 intercommunication that the symmetry set up, and every air duct 19 is close to the inside intercommunication of cushion chamber through first communicating pipe 20 and second communicating pipe 21 of sealed slider 23, it is provided with sealed slider 23 to slide in the cushion chamber, the both sides of sealed slider 23 all link to each other with the cushion chamber inner wall through the main buffer spring 22 that the symmetry set up, sealed slider 23 seals the intercommunication position of two first communicating pipes 20 and two second communicating pipes 21 and cushion chamber, and be located between the cushion chamber of sealed slider 23 one side and the cushion chamber that is located sealed slider 23 opposite side each other not communicate (ii) a

It should be noted that, the nitrogen generator 4, the air pressure controller 5, the carbon dioxide remover 6, the humidifier 7 and the air conditioner 8 are controlled by the air pressure controller 9, the carbon dioxide remover 6 is provided with two air inlet pipes, one air inlet pipe is positioned outside the storage room 1, the other air inlet pipe is positioned in the storage room 1, an air outlet pipe of the carbon dioxide remover 6 is positioned in the storage room 1 and is used for adjusting the concentration of carbon dioxide in the storage room 1, the air pressure controller 5 is used for adjusting the pressure in the storage room 1, the nitrogen generator 4 is used for generating nitrogen gas to create a proper storage space, the humidifier 7 is used for controlling the humidity in the storage room 1, the air conditioner 8 is used for controlling the temperature in the storage room 1, the temperature, the humidity and the pressure inside can be detected by matching with the temperature and humidity detectors 10 and 11, the air pressure stability in the storage room 1 is realized by the sealing slide block 23, the first guide rod 27, the first communicating pipe 20, the, and has certain buffering effect, thereby effectively avoiding the problem that the pressure of air pressure directly acts on the fixing frame 14 to cause the short service life of the fixing frame 14.

The bottom of one side of the container 18 is hinged with a stop door through a hinge, two connecting blocks 30 are symmetrically and fixedly installed on the stop door, two connecting plates matched with the connecting blocks 30 are symmetrically and integrally formed on the container 18, the connecting blocks 30 are detachably connected with the corresponding connecting plates through bolts 31, and a plurality of air holes 29 are formed in the container 18 and the baffle in a penetrating mode;

it should be noted that the soft seed pomegranates are all placed at the top of the container 18, the baffle is rotated through the hinge to enable the baffle to be matched with the container 18 to store the pomegranates at the top of the container 18, the bolt 31 penetrates through the connecting block 30 and the connecting plate to realize fixing, and the baffle is also convenient to take down, so that the soft seed pomegranates can be conveniently put into and taken out of the warehouse;

wherein, a protective shell 12 is fixedly arranged at the position of the storage room 1 close to the balance bag 13, and a cavity for placing the balance bag 13 is arranged in the protective shell 12;

it should be noted that the balance bag 13 can be protected by the protective shell 12, so that the airtight problem of the balance bag 13 caused by external factors is avoided, the service life of the balance bag 13 is effectively prolonged, the volume of the cavity is large, and the expansion deformation of the balance bag 13 in the cavity can be met;

the two fixing frames 14 are symmetrically welded on the protective shell 12, the end part of each fixing frame 14, which is far away from one end of the protective shell 12, is welded with a connecting seat 15, and each connecting seat 15 is fixedly installed outside the storage room 1 through symmetrically arranged connecting bolts;

it should be noted that the mounting of the protective shell 12 outside the storage room 1 is facilitated through the fixing frame 14 and the connecting seat 15, and the dismounting operation is simple and convenient;

the two circular truncated cone body structures are internally provided with circular truncated cone shaped cavities, the cylindrical structure is internally provided with a cylindrical cavity communicated with the two circular truncated cone shaped cavities, the two circular truncated cone shaped cavities and the cylindrical cavity are matched to form a buffer cavity, the sealing slide block 23 is arranged in the buffer cavity in a sliding mode, and the minimum inner diameter of the two circular truncated cone shaped cavities is just equal to the inner diameter of the cylindrical cavity;

it should be noted that the sealing slider 23 slides in the cylindrical cavity and keeps abutting against the inner wall of the cylindrical cavity in a sealing state, so that when the sealing slider 23 slides into the truncated cone-shaped cavity, the buffer cavities can be communicated at this time, and pressure balance is performed through the balance bag 13;

wherein, two sliding pieces 25 are symmetrically arranged in the two truncated cone-shaped cavities in a sliding way, and each sliding piece 25 is connected with the inner wall of the corresponding truncated cone-shaped cavity through an auxiliary buffer spring 24;

it should be noted that, when the pressure in the storage room 1 acts on the sealing slide block 23 to make the sealing slide block 23 slide to abut against the two corresponding slide pieces 25, if the pressure is still large, the sealing slide block 23 will be continuously driven to slide at this time, the corresponding slide pieces 25 are extruded, and the auxiliary buffer springs 24 on the slide pieces 25 are compressed, so that the secondary buffer is realized, and the buffer effect is effectively improved;

wherein, two first guide rods 27 are symmetrically and fixedly arranged in the buffer cavity, the sealing slide block 23 is sleeved on the two first guide rods 27, two second guide rods 28 are symmetrically and fixedly arranged in each round platform-shaped cavity, and each slide sheet 25 is sleeved on the corresponding second guide rod 28;

it should be noted that, in the sliding process of the sealing slider 23 in the sliding cavity, the stability of the sliding process of the sealing slider 23 can be improved by the guiding effect of the first guide rod 27, and in the same way, the stability of the sliding process of the sliding piece 25 can be improved by guiding the sliding process of the sliding piece 25 through the second guide rod 28;

wherein, a heat preservation cavity is arranged in the wall body of the storage room 1, and heat preservation materials 17 are arranged in the heat preservation cavity;

it should be noted that the thermal insulation effect of the wall of the storage room 1 can be improved by the thermal insulation material 17, and the stability of the interior of the storage room 1 can be maintained.

In the invention, when a user uses the air-conditioned cold store, when low pressure occurs in the storage room 1, the sealing slide block 23 slides towards the direction close to the storage room 1, so that the four main buffer springs 22 generate adaptive deformation, when the negative pressure is larger, the sealing slide block 23 presses the two slide pieces 25 against the two slide pieces 25 to compress the auxiliary buffer springs 24 corresponding to the two slide pieces 25, the sealing slide block 23 slides into the cylindrical cavity close to the storage room 1, the sealing slide block 23 and the cylindrical cavity generate gaps, the balance pipes are communicated again, the two first communicating pipes 20 and the two second communicating pipes 21 are communicated with the buffer cavities again, when high pressure occurs in the storage room 1, the sealing slide block 23 slides towards the direction far from the storage room 1, so that the four main buffer springs 22 generate adaptive deformation, the two second communicating pipes 21 are communicated with the buffer cavities firstly, along with balanced bag 13's continuation slip, two first communicating pipes 20 also communicate with the cushion chamber, gaseous from first communicating pipe 20 and second communicating pipe 21 get into air duct 19, and send into balanced bag 13 by air duct 19 in, when pressure was too big, can make sealed slider 23 slide in keep away from the cylindrical intracavity of depositing between 1, sealed slider 23 appears the gap with this department's chamber this moment, thereby can realize fast that 1 interior atmospheric pressure of depositing is balanced, and the cushioning effect has been promoted, the protection to balanced bag 13 has been realized.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.