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CN-122009682-A - Fresh-keeping conveyer of vegetables

CN122009682ACN 122009682 ACN122009682 ACN 122009682ACN-122009682-A

Abstract

The invention relates to the technical field of vegetable transportation, in particular to a vegetable fresh-keeping transportation device which comprises a container, a box door, an inner box body, a bottom plate, a transportation frame, a gas supply assembly and an automatic ventilation assembly, wherein the bottom of the container is provided with a rotatable bottom plate, the transportation frame and the gas supply assembly are arranged on the bottom plate, the bottom of the container is communicated with the automatic ventilation assembly, the gas supply assembly is used for conveying fresh-keeping mixed gas to the inner box body, and the automatic ventilation assembly utilizes the air flow and the piezoelectric effect to realize the air circulation outside the inner box body. This fresh-keeping conveyer of vegetables, through gas mixing structure, can stably maintain suitable gaseous environment according to vegetables breathing characteristic, inhibit the too fast breathing metabolism of vegetables, reduce dehydration, wilting and oxidative deterioration phenomenon, fresh-keeping gas can evenly permeate to the vegetables and deposit the region, improves the problem that traditional conveyer air conditioning ability is not enough, reduces the rotten loss of vegetables in long-distance transportation, better keeps original quality and taste of vegetables.

Inventors

  • LI QIANG
  • CAI LIFEI

Assignees

  • 河北知菜农业开发有限公司

Dates

Publication Date
20260512
Application Date
20260409

Claims (8)

  1. 1. The vegetable fresh-keeping conveying device comprises a container (1), a box door (2), an inner box body (4), a bottom plate (6), a conveying frame (7), a gas supply assembly and an automatic ventilation assembly, and is characterized in that the front surface of the container (1) is hinged to the box door (2), the inner box body (4) is arranged inside the container, the bottom of the container is provided with the rotatable bottom plate (6), the conveying frame (7) and the gas supply assembly are arranged on the bottom plate (6), the bottom of the container (1) is communicated with the automatic ventilation assembly, the gas supply assembly is used for conveying fresh-keeping mixed gas to the inner box body (4), and the automatic ventilation assembly utilizes the air flow and the piezoelectric effect to realize the external air circulation of the inner box body (4).
  2. 2. The fresh-keeping conveyer of vegetables according to claim 1, wherein the bottom of the container (1) is provided with a movable groove (606), a baffle plate (607) is fixed in the movable groove (606), a bottom plate (6) is connected above the baffle plate (607), a motor (603) is arranged at the bottom of the inner wall of the container (1), the motor (603) is connected with a rotating shaft (605) through a transmission box (604), the rotating shaft (605) is fixed with the bottom plate (6), and the bottom plate (6) is driven to horizontally or obliquely rotate.
  3. 3. The vegetable fresh-keeping transportation device according to claim 2, wherein the top of the bottom plate (6) is provided with a sliding rail (601), the sliding rail (601) is connected with a sliding frame (602) in a sliding manner, the transportation frame (7) is placed on the sliding frame (602), the top of the bottom plate (6) is further provided with a mounting frame (5), the mounting frame (5) is connected with a fixed magnet (505) through a first fixing frame (502), a telescopic frame (503) and a second fixing frame (504), and the fixed magnet (505) adsorbs an iron plate at the top of the inner box body (4) to achieve limiting.
  4. 4. The fresh-keeping conveyer of vegetables of claim 1, wherein the gas supply subassembly includes mount (401), steel bottle (402), flowmeter (403), breather valve (404), gas mixing box (405), breather pipe (406) and intake pipe (407), mount (401) are installed in container (1) inner wall, steel bottle (402) are arranged in mount (401), steel bottle (402) connect gradually flowmeter (403), breather valve (404) and gas mixing box (405), gas mixing box (405) openly sets up breather pipe (406) that stretches into interior box (4), the back sets up intake pipe (407) that extend to outside, breather pipe (406) and intake pipe (407) all adorn the check valve.
  5. 5. The vegetable fresh-keeping transportation device according to claim 4, wherein the gas mixing box (405) is internally provided with an O 2 /CO 2 concentration sensor, an STM32H7 singlechip and two micro air pumps, and can mix oxygen and air into fresh-keeping gas in an ideal state and send the fresh-keeping gas into the inner box body (4).
  6. 6. The vegetable fresh-keeping transportation device according to claim 1, wherein fixing plates (702) are arranged at four corners of the inner wall of the transportation frame (7), the fixing plates (702) are connected with a silicone rubber film ventilation plate (701) through rubber pads (703), the silicone rubber film ventilation plate (701) is provided with telescopic ventilation holes with adjustable apertures, ventilation holes (704) are formed in the side face of the transportation frame (7), and the vegetables fresh-keeping transportation device can be stacked.
  7. 7. The vegetable fresh-keeping transportation device according to claim 1, wherein the automatic ventilation assembly comprises a ventilation groove (804), an air inlet box (805), a telescopic airbag (8), a piezoelectric ceramic plate (802), a pressure spring (801), an electromagnetic plate (803), an inverter (806), a permanent magnet plate (807), a telescopic spring (808) and a baffle plate (810), wherein the ventilation groove (804) is communicated with the bottom of the container (1) and the outside of the inner box body (4), the telescopic airbag (8) is arranged at two ends, the pressure spring (801) and the piezoelectric ceramic plate (802) are connected to the inner wall of the telescopic airbag (8), the electromagnetic plate (803) is fixed to the outer wall, the inverter (806) and the permanent magnet plate (807) are arranged in the air inlet box (805), the permanent magnet plate (807) is fixed through the telescopic spring (808), the bottom is connected with the slidable baffle plate (810), the piezoelectric ceramic plate (802) is electrically connected with the electromagnetic plate (803) through the inverter, the telescopic airbag (8) is driven by air flow to deform to generate electricity, and the permanent magnet plate (807) and the baffle plate (810) is controlled to reciprocate.
  8. 8. The vegetable fresh-keeping transportation device according to claim 7, wherein the telescopic air bag (8) repeatedly protrudes and contracts under the action of external air flow pressure difference to drive the pressure spring (801) to impact the piezoelectric ceramic plate (802) to generate current, the current is changed into alternating current through the inverter (806), the electromagnetic plate (803) periodically repels the permanent magnet plate (807), and the baffle plate (810) is driven to open and close to enable air to periodically enter the outside of the inner box body (4).

Description

Fresh-keeping conveyer of vegetables Technical Field The invention relates to the technical field of vegetable transportation, in particular to a vegetable fresh-keeping transportation device. Background Vegetables are used as fresh agricultural products which are easy to decay, the requirements on gas components in a storage environment are severe in long-distance logistics transportation, and proper oxygen and carbon dioxide concentration are key to delaying vegetable respiration consumption and keeping freshness. The current vegetable transportation device on the market has the core technical defect of insufficient air-conditioning fresh-keeping capability, and is difficult to meet the fresh-keeping requirement of long-distance vegetable transportation. The existing transportation equipment adopts a common closed box body or a simple heat preservation box body structure, lacks an automatic gas proportioning, concentration monitoring and accurate conveying system, and cannot dynamically adjust the gas environment in the box according to the respiration characteristics of vegetables. Partial simple air-conditioning device can only realize passive filling of single gas, can not monitor and accurately regulate and control the concentration of O2 and CO2 in real time, and is difficult to form and maintain stable gas atmosphere suitable for vegetable preservation. Meanwhile, the gas distribution structure of the traditional device is unreasonable in design, fresh-keeping gas cannot uniformly permeate into a vegetable storage area, local gas concentration imbalance is easy to occur, and the problems of anaerobic respiration, oxidative deterioration, water loss wilting and the like of vegetables are caused. In addition, the device cannot adapt to the air conditioning requirements of different transportation scenes such as land shortages, offshore long distances and the like, the fresh-keeping effect is unstable, the rotting loss rate of vegetables is high, the product quality and the economic benefit are seriously influenced, and the efficient development of the large-scale and long-distance cold chain transportation industry of vegetables is restricted. Disclosure of Invention The invention aims to provide a vegetable fresh-keeping transportation device which aims to solve the problems in the background technology. The vegetable fresh-keeping transportation device comprises a container, a box door, an inner box body, a bottom plate, a transportation frame, a gas supply assembly and an automatic ventilation assembly, wherein the front face of the container is hinged with the box door, the inner box body is arranged in the container, the bottom of the container is provided with a rotatable bottom plate, the transportation frame and the gas supply assembly are arranged on the bottom plate, the bottom of the container is communicated with the automatic ventilation assembly, the gas supply assembly is used for conveying fresh-keeping mixed gas to the inner box body, and the automatic ventilation assembly utilizes the air flow and the piezoelectric effect to realize air circulation outside the inner box body. Preferably, the bottom of the container is provided with a movable groove, a baffle plate is fixed in the movable groove, the upper part of the baffle plate is connected with a bottom plate, the bottom of the inner wall of the container is provided with a motor, the motor is connected with a rotating shaft through a transmission case, and the rotating shaft is fixed with the bottom plate to drive the bottom plate to horizontally or obliquely rotate. Preferably, the slide rail is established at the bottom plate top, sliding connection carriage on the slide rail, and the transport frame is placed on the carriage, and the mounting bracket is still established at the bottom plate top, and the mounting bracket passes through mount one, expansion bracket, mount two and connects fixed magnet, and fixed magnet adsorbs interior box top iron plate and realizes spacingly. Preferably, the gas supply assembly comprises a fixing frame, a steel bottle, a flowmeter, a vent valve, a gas mixing box, a vent pipe and an air inlet pipe, wherein the fixing frame is arranged on the inner wall of the container, the steel bottle is arranged in the fixing frame and sequentially connected with the flowmeter, the vent valve and the gas mixing box, the vent pipe extending into the inner box body is arranged on the front surface of the gas mixing box, the air inlet pipe extending to the outside is arranged on the back surface of the gas mixing box, and the vent pipe and the air inlet pipe are all provided with one-way valves. Preferably, the gas mixing box is internally provided with an O2/CO2 concentration sensor, an STM32H7 singlechip and two micro air pumps, and can mix oxygen and air into fresh-keeping gas in an ideal state and send the fresh-keeping gas into the inner box body. Preferably, the four corners of the inner wall of the trans