Liquid pressure reduction integrated device and fruit and vegetable fresh-keeping equipment
By designing an integrated liquid decompression device, the liquid inside the fruit and vegetable preservation equipment is automatically cleaned using a scraping mechanism and a sealing mechanism, solving the problem of manual cleaning in existing technologies and improving operational efficiency.
Patent Information
- Application Number
- CN202511480428.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-16
- Publication Date
- 2025-12-16
AI Technical Summary
In existing technologies, after liquid water or preservatives are sprayed into the vacuum chamber of fruit and vegetable preservation equipment, the vaporized liquid adheres to the inner wall and needs to be manually cleaned, which increases the labor intensity of the staff.
Design a liquid decompression integrated device, including a scraping mechanism and a sealing mechanism, which automatically cleans the liquid adhering to the inner wall of the decompression tank through vacuuming and scraping mechanism, and stores it in the liquid storage chamber.
It enables automated cleaning of liquid from the inner wall, reducing the labor intensity of workers and improving the operating efficiency of fruit and vegetable preservation equipment.
Smart Images
Figure CN121128772A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to fruit and vegetable preservation equipment technical field, specifically to a liquid pressure reduction integrated device and fruit and vegetable preservation equipment. BACKGROUND
[0002] With the increasing demand for high-quality fresh fruits and vegetables in the market, pressure reduction preservation technology (such as vacuum pre-cooling, pressure reduction storage) has become a research hotspot in the field of postharvest preservation of fruits and vegetables due to its outstanding advantages such as rapid cooling, inhibition of microbial reproduction, and delay of metabolism. In this technical system, in order to make up for the water loss and wilting of fruits and vegetables caused by the vacuum environment and to achieve efficient application of preservatives such as bactericides and nutrient solutions, liquid is often introduced into the vacuum chamber.
[0003] The most commonly used technical means is to directly spray liquid water or preservatives into the vacuum chamber through an atomizing nozzle, which relies on the core principle of flash evaporation: in a low-pressure environment, liquid droplets vaporize instantly, and the gas phase substances (water vapor, preservative vapor) formed under the driving of pressure difference uniformly penetrate into the fruit and vegetable tissue, thereby achieving rapid water replenishment and preservation treatment. This method can replenish water and preserve fruits and vegetables, but after the preservation is completed, the vaporized liquid will adhere to the inner wall of the pressure reduction tank after condensation, so that the worker needs to scrape and clean the liquid after taking out the fruits and vegetables, which increases the labor intensity of the worker. Therefore, we propose a liquid pressure reduction integrated device and fruit and vegetable preservation equipment. SUMMARY
[0004] The purpose of the present application is to provide a liquid pressure reduction integrated device and fruit and vegetable preservation equipment to solve the problems raised in the background art.
[0005] To achieve the above purpose, the present application provides the following technical scheme: A liquid pressure reduction integrated device, comprising a pressure reduction tank, a tank door movably connected to one side of the pressure reduction tank, a plurality of connecting screws screwed into the tank door, a hand wheel fixedly connected to one end of the connecting screws, a sealing mechanism connected to one end of the hand wheel, the sealing mechanism arranged in the tank door, an inner thread ring fixedly connected to both ends of the pressure reduction tank corresponding to the position of the hand wheel, a sealing groove formed on the side of the pressure reduction tank close to the tank door, a connecting pipe fixedly connected to the inner side of the pressure reduction tank, a plurality of placement plates fixedly sleeved on the outer side of the connecting pipe, a plurality of holes penetrating from top to bottom formed in the placement plates, two atomizing nozzles arranged on the upper side of the placement plates, and the atomizing nozzles fixedly connected to the connecting pipe. The inside of the decompression box is provided with a scraping mechanism, the bottom of the inside of the decompression box is arranged in an inclined manner, the upper end of the connecting pipe is fixedly connected with the electromagnetic valve, the upper end of the electromagnetic valve is fixedly connected with the output end of the circulating pump, the circulating pump is fixedly connected in the decompression box, the input end of the circulating pump is fixedly connected with the conduit, the end of the conduit away from the circulating pump extends into the decompression box and is in communication with the liquid storage cavity. The upper end of the liquid storage cavity is in communication with the external environment, a through groove is formed in the decompression box, a plugging mechanism is arranged in the through groove, and a vacuum extraction mechanism is fixedly installed on the outside of the decompression box and extends into the inside of the decompression box.
[0006] Preferably, a plurality of T-shaped rods are fixedly connected to the side of the box door close to the decompression box, the T-shaped rods are movably connected in the cross-shaped sliding rod, the cross-shaped sliding rod is slidably connected in the connecting frame, the connecting frame is fixedly connected to the upper end of the decompression box, a connecting spring is sleeved on the outside of the T-shaped rod, one end of the connecting spring is fixedly connected with the box door, and the other end is fixedly connected with the cross-shaped sliding rod.
[0007] Preferably, the sealing mechanism comprises an annular air bag, one end of the annular air bag is movably connected with the hand wheel, the other end is fixedly connected with the box door, the annular air bag is in communication with the annular cavity through a plurality of through holes, the annular cavity is formed in the box door, the side of the box door is fixedly connected with a positioning ring, the end of the positioning ring away from the box door is fixedly connected with a sealing air bag, the sealing air bag is in communication with the annular cavity through a gas guide cavity, and the gas guide cavity is formed in the box door.
[0008] Preferably, the scraping mechanism comprises a scraping ring, two lead screws are screwed in the scraping ring, the upper and lower ends of the lead screws are movably connected with the decompression box, a first belt pulley is fixedly connected to the lower end of the lead screw, the two first belt pulleys are connected with a second belt pulley through a belt, the second belt pulley is fixedly connected to the output end of a transmission motor, and the transmission motor is fixedly connected in the decompression box.
[0009] Preferably, the plugging mechanism comprises a T-shaped plugging plate, a liquid discharge groove is formed in the T-shaped plugging plate, the lower end of the T-shaped plugging plate is slidably connected in a T-shaped cavity, the T-shaped cavity is formed in the decompression box, two supporting springs are fixedly connected to the lower end of the T-shaped plugging plate, the other ends of the supporting springs are fixedly connected with the T-shaped cavity, and a pressing rod is fixedly connected to the side of the T-shaped plugging plate close to the box door.
[0010] In addition, in order to achieve the above-mentioned purpose, the application also provides a fruit and vegetable fresh-keeping equipment comprising the liquid decompression integrated device.
[0011] Compared with the prior art, the present application has the beneficial effects that: the present application places fruits and vegetables on several placing plates, connects the box door and the decompression box together by rotating the hand wheel, seals the connection between the box door and the decompression box by the sealing mechanism when the hand wheel is rotating, performs vacuumizing treatment on the decompression box by the vacuumizing mechanism, cleans the liquid attached to the inner wall of the decompression box and the box door by the scraping mechanism after the fruits and vegetables are treated and the decompression box returns to normal pressure, and cancels the blocking of the through groove by the blocking mechanism when the scraping mechanism moves to the bottom inside the decompression box, so that the scraped liquid can flow back into the liquid storage cavity for storage, thereby reducing the labor intensity of the workers. BRIEF DESCRIPTION OF DRAWINGS
[0012] Figure 1 is a schematic diagram of the three-dimensional structure of the present application; Figure 2 is a schematic diagram of the three-dimensional structure of the box door in the open state of the present application; Figure 3 is a schematic diagram of the three-dimensional structure of the back structure of the present application; Figure 4 is a schematic diagram of the three-dimensional structure of the bottom section view state of the present application; Figure 5 is a schematic diagram of the three-dimensional structure of the T-shaped blocking plate and the T-shaped cavity connection relationship of the present application; Figure 6 is a schematic diagram of the three-dimensional structure of the T-shaped blocking plate and the support spring connection relationship of the present application; Figure 7 is a schematic diagram of the three-dimensional structure of the gas guide cavity and the annular cavity connection relationship of the present application.
[0013] In the figure: 1, box door; 2, hand wheel; 3, internal thread ring; 4, decompression box; 5, through groove; 6, connecting frame; 7, T-shaped rod; 8, conduit; 9, cross-shaped sliding rod; 10, screw rod; 11, placing plate; 12, sealing groove; 13, connecting pipe; 14, atomizing nozzle; 15, annular air bag; 16, connecting spring; 17, liquid storage cavity; 18, second belt pulley; 19, transmission motor; 20, first belt pulley; 21, belt; 22, electromagnetic valve; 23, scraping ring; 24, circulating pump; 25, vacuumizing mechanism; 26, sealing air bag; 27, T-shaped blocking plate; 28, liquid discharge groove; 29, pressure rod; 30, support spring; 31, gas guide cavity; 32, annular cavity; 33, connecting screw rod; 34, positioning ring; 35, T-shaped cavity. DETAILED DESCRIPTION
[0014] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments of the present application, all the other embodiments obtained by a person of ordinary skill in the art without creative work fall within the scope of the present application.
[0015] Please refer to Figures 1-7 The present application provides a technical solution: Embodiment 1: The liquid decompression integrated device comprises a decompression box 4, a box door 1 movably connected to one side of the decompression box 4, a plurality of connecting screws 33 screwed in the box door 1, a hand wheel 2 fixedly connected to one end of the connecting screws 33, a sealing mechanism connected to one end of the hand wheel 2, the sealing mechanism arranged in the box door 1, an inner threaded ring 3 fixedly connected to the decompression box 4 at positions corresponding to the hand wheel 2, the box door 1 and the decompression box 4 connected together by rotating the hand wheel 2 to drive the connecting screws 33 to screw into the inner threaded ring 3, a sealing groove 12 formed in the decompression box 4 near the box door 1, a connecting pipe 13 fixedly connected to the inner bottom of the decompression box 4, a plurality of placing plates 11 fixedly sleeved on the outer side of the connecting pipe 13, a plurality of holes penetrating from top to bottom formed in the placing plates 11, the fruits and vegetables stored by the placing plates 11, and the liquid on the surface of the placing plates 11 flowing into the bottom of the decompression box 4 through the plurality of holes.
[0016] Two atomizing nozzles 14 are arranged on the upper side of the placing plate 11, the atomizing nozzles 14 are fixedly connected to the connecting pipe 13, the preservative liquid enters into the connecting pipe 13, and finally sprayed into the decompression box 4 through the plurality of atomizing nozzles 14, a scraping mechanism is arranged on the inner side of the decompression box 4, the inner bottom of the decompression box 4 is arranged in an inclined manner, the liquid adhered to the inner wall of the decompression box 4 and the box door 1 is scraped down by the scraping mechanism, and the inclined arrangement of the bottom of the decompression box 4 enables the liquid to move in one direction.
[0017] The upper end of the connecting pipe 13 is fixedly connected to a solenoid valve 22, the upper end of the solenoid valve 22 is fixedly connected to the output end of a circulating pump 24, the circulating pump 24 is fixedly connected to the decompression box 4, the input end of the circulating pump 24 is fixedly connected to a conduit 8, the end of the conduit 8 away from the circulating pump 24 extends into the decompression box 4 and communicates with a liquid storage cavity 17, the liquid storage cavity 17 is formed in the decompression box 4, the preservative liquid in the liquid storage cavity 17 is drawn into the conduit 8 by the circulating pump 24, then enters into the circulating pump 24 through the conduit 8, and finally enters into the atomizing nozzles 14 through the solenoid valve 22.
[0018] The upper end of the liquid storage cavity 17 communicates with the external environment, a through groove 5 is formed in the decompression box 4, a plugging mechanism is arranged in the through groove 5, a vacuumizing mechanism 25 is fixedly installed on the outer side of the decompression box 4, and one end of the vacuumizing mechanism 25 extends into the inner side of the decompression box 4.
[0019] Embodiment 2: In order to make the connection between the box door 1 and the decompression box 4 be completely sealed, a plurality of T-shaped rods 7 are fixedly connected to the side of the box door 1 close to the decompression box 4, the T-shaped rods 7 are movably connected in the cross-shaped slide rod 9, the cross-shaped slide rod 9 is slidably connected in the connecting frame 6, the connecting frame 6 is fixedly connected to the upper end of the decompression box 4, two grooves are formed in the inner side of the connecting frame 6, the cross-shaped slide rod 9 can move along the inner side of the connecting frame 6 through the grooves, the connecting spring 16 is sleeved on the outer side of the T-shaped rod 7, one end of the connecting spring 16 is fixedly connected to the box door 1, and the other end is fixedly connected to the cross-shaped slide rod 9.
[0020] The sealing mechanism comprises a ring-shaped air bag 15, one end of the ring-shaped air bag 15 is movably connected to the hand wheel 2, and the other end is fixedly connected to the box door 1, one end of the ring-shaped air bag 15 is T-shaped and made of hard material, and is slidably connected in the T-shaped groove formed in the hand wheel 2, so that the ring-shaped air bag 15 does not rotate with the hand wheel 2 when the hand wheel 2 rotates.
[0021] The ring-shaped air bag 15 is connected with the ring-shaped cavity 32 through a plurality of through holes, the ring-shaped cavity 32 is formed in the box door 1, a positioning ring 34 is fixedly connected to one side of the box door 1, a sealing air bag 26 is fixedly connected to the end of the positioning ring 34 away from the box door 1, the sealing air bag 26 is connected with the ring-shaped cavity 32 through the gas guide cavity 31, and the gas guide cavity 31 is formed in the box door 1. When the connecting screw rod 33 is connected with the internal thread ring 3 by rotating the hand wheel 2, the ring-shaped air bag 15 is compressed, the gas enters the ring-shaped cavity 32, and the gas in the ring-shaped cavity 32 enters the sealing air bag 26 through the gas guide cavity 31. At this time, the sealing air bag 26 is inflated by the gas and is in complete contact with the sealing groove 12, so that the connection between the box door 1 and the decompression box 4 is sealed.
[0022] The scraping mechanism comprises a scraping ring 23, two lead screws 10 are screwed in the scraping ring 23, the upper and lower ends of the lead screws 10 are movably connected to the decompression box 4, the lower end of the lead screw 10 is fixedly connected with the first belt pulley 20, the two first belt pulleys 20 are connected with the second belt pulley 18 through the belt 21, the second belt pulley 18 is fixedly connected to the output end of the transmission motor 19, and the transmission motor 19 is fixedly connected to the decompression box 4.
[0023] The plugging mechanism comprises a T-shaped plugging plate 27, a liquid discharge groove 28 is formed in the T-shaped plugging plate 27, the lower end of the T-shaped plugging plate 27 is slidably connected to the T-shaped cavity 35, the T-shaped cavity 35 is formed in the decompression box 4, two supporting springs 30 are fixedly connected to the lower end of the T-shaped plugging plate 27, the other ends of the supporting springs 30 are fixedly connected to the T-shaped cavity 35, and the side of the T-shaped plugging plate 27 close to the box door 1 is fixedly connected with a pressing rod 29.
[0024] In addition, in order to achieve the above object, the present application also provides a fruit and vegetable fresh-keeping device comprising the above liquid pressure reduction integrated device.
[0025] Working principle, in use, the fruit and vegetable are placed in turn on the upper end of the placing plate 11, and the box door 1 is pushed to the left after the placing is completed, at this time, the T-shaped rod 7 drives the cross-shaped slide rod 9 to move along the connecting frame 6, when the cross-shaped slide rod 9 moves to the left side of the connecting frame 6 and cannot move, at this time, the box door 1 is pushed inward, so that the T-shaped rod 7 moves inward along the cross-shaped slide rod 9, at this time, the connecting spring 16 is compressed, when the box door 1 contacts the pressure reduction box 4, and the positioning ring 34 is inserted into the sealing groove 12, at this time, the connecting screw rod 33 is driven to rotate by rotating the hand wheel 2, so that the connecting screw rod 33 is screwed with the internal thread ring 3, and the fixation of the box door 1 is completed; At the same time, in the process of rotating the hand wheel 2, since one end of the annular air bag 15 is movably connected with the hand wheel 2, and the other end is fixedly connected with the box door 1, when the connecting screw rod 33 is connected with the internal thread ring 3 by rotating the hand wheel 2, the annular air bag 15 is compressed, and the gas enters into the annular cavity 32, the gas entering into the annular cavity 32 enters into the sealing air bag 26 through the gas guide cavity 31, at this time, the sealing air bag 26 is inflated by the gas and fully contacts the sealing groove 12, so that the sealing of the connection between the box door 1 and the pressure reduction box 4 is realized; By opening the vacuum pumping mechanism 25, the pressure reduction box 4 is subjected to vacuum pumping treatment, the fresh-keeping liquid in the liquid storage cavity 17 is pumped into the electromagnetic valve 22 by the circulating pump 24, the fresh-keeping liquid entering into the electromagnetic valve 22 enters into the connecting pipe 13, and finally enters into the pressure reduction box 4 through the plurality of atomizing nozzles 14, since the pressure in the pressure reduction box 4 is low, at this time, the water mist sprayed by the atomizing nozzle 14 is vaporized, and the fresh-keeping liquid after vaporization fills the pressure reduction box 4 and gradually penetrates to the surface of the fruit and vegetable; When the spraying is stopped after a period of time, the electromagnetic valve 22 and the atomizing nozzle 14 are closed, and the clean air is slowly introduced into the pressure reduction box 4 by the vacuum pumping mechanism 25, so that the pressure is restored to normal pressure, under the normal pressure, the gas pressure in the fruit and vegetable tissue is balanced with the outside, the penetrated steam is completely condensed, the fresh-keeping agent is evenly attached to the surface of the fruit and vegetable and even penetrates below the epidermis, and part of the fresh-keeping liquid is attached to the surface of the pressure reduction box 4 after condensation, by opening the transmission motor 19 to drive the second belt pulley 18 to rotate, the two first belt pulleys 20 rotate with the second belt pulley 18 under the connection of the belt 21, the scraper ring 23 moves downward by the two synchronously rotating lead screws 10, since the outer side of the scraper ring 23 contacts the inner side wall of the pressure reduction box 4 and the box door 1, therefore, when the scraper ring 23 moves downward, the liquid attached to the inner wall of the pressure reduction box 4 and the box door 1 is scraped off; When the lower end of the scraping ring 23 contacts the pressure rod 29, the T-shaped sealing plate 27 will move downward along the T-shaped cavity 35 with the movement of the scraping ring 23, and the supporting spring 30 is compressed at this time. When the lower end of the scraping ring 23 moves to the bottom inside of the decompression box 4, the scraping ring 23 stops moving, and the liquid at the bottom of the decompression box 4 enters the liquid storage cavity 17 through the liquid discharge groove 28 and the through groove 5. At this time, the scraping ring 23 returns to the initial position by driving the motor 19. By rotating the hand wheel 2, the box door 1 can be opened, and the annular air bag 15 is expanded, and the sealing air bag 26 is contracted. After the box door 1 is opened and pushed to the right side, the fruits and vegetables on the upper end of the placement plate 11 can be taken off.
[0026] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.
Claims
1. A liquid depressurization integrated device, comprising a depressurization chamber, characterized in that: The pressure reducing chamber is movably connected to a door on one side. Several connecting screws are screwed into the door. One end of each connecting screw is fixedly connected to a handwheel, and one end of the handwheel is connected to a sealing mechanism located inside the door. Both ends of the pressure reducing chamber are fixedly connected to internal threaded rings corresponding to the handwheel positions. A sealing groove is provided on the side of the pressure reducing chamber near the door. A connecting pipe is fixedly connected to the bottom inside the pressure reducing chamber. Several placement plates are fixedly sleeved on the outside of the connecting pipe. Several holes are provided in the placement plates, running from top to bottom. Two atomizing nozzles are provided on the upper side of the placement plates, and the atomizing nozzles are fixedly connected to the connecting pipe. The pressure reducing chamber is equipped with a scraping mechanism on its inner side. The bottom of the inner side of the pressure reducing chamber is inclined. The upper end of the connecting pipe is fixedly connected to the solenoid valve. The upper end of the solenoid valve is fixedly connected to the output end of the circulating pump. The circulating pump is fixedly connected inside the pressure reducing chamber. The input end of the circulating pump is fixedly connected to the conduit. The end of the conduit away from the circulating pump extends into the pressure reducing chamber and communicates with the liquid storage chamber. The liquid storage chamber is opened inside the pressure reducing chamber. The upper end of the liquid storage chamber is connected to the external environment. A through groove is provided inside the pressure reducing box, and a sealing mechanism is provided inside the through groove. A vacuum pumping mechanism is fixedly installed on the outside of the pressure reducing box, and one end of the vacuum pumping mechanism extends into the inside of the pressure reducing box.
2. The integrated liquid depressurization device according to claim 1, characterized in that: Several T-shaped rods are fixedly connected to the side of the chamber door near the decompression chamber. The T-shaped rods are movably connected to the cross-shaped slide rods. The cross-shaped slide rods slide within the connecting frame. The connecting frame is fixedly connected to the upper end of the decompression chamber. A connecting spring is sleeved on the outside of the T-shaped rods. One end of the connecting spring is fixedly connected to the chamber door, and the other end is fixedly connected to the cross-shaped slide rod.
3. The integrated liquid depressurization device according to claim 1, characterized in that: The sealing mechanism includes an annular airbag. One end of the annular airbag is movably connected to a handwheel, and the other end is fixedly connected to the door. The annular airbag is connected to an annular cavity through several through holes. The annular cavity is located inside the door. A positioning ring is fixedly connected to one side of the door. A sealing airbag is fixedly connected to the end of the positioning ring away from the door. The sealing airbag is connected to the annular cavity through an air guide cavity, which is located inside the door.
4. The integrated liquid depressurization device according to claim 1, characterized in that: The scraping mechanism includes a scraping ring, with two lead screws screwed into the scraping ring. The upper and lower ends of the lead screws are movably connected to the pressure reducing box. The lower end of the lead screw is fixedly connected to a first pulley. The two first pulleys are connected to a second pulley via a belt. The second pulley is fixedly connected to the output end of a drive motor. The drive motor is fixedly connected inside the pressure reducing box.
5. The integrated liquid depressurization device according to claim 1, characterized in that: The sealing mechanism includes a T-shaped sealing plate with a drainage groove inside. The lower end of the T-shaped sealing plate is slidably connected to a T-shaped cavity, which is located inside a pressure reducing chamber. Two support springs are fixedly connected to the lower end of the T-shaped sealing plate, and the other end of each support spring is fixedly connected to the T-shaped cavity. A pressure rod is fixedly connected to the side of the T-shaped sealing plate near the chamber door.
6. A fruit and vegetable preservation device, characterized in that, The liquid decompression integrated device includes any one of claims 1-5.