Fruit and vegetable puffing and drying device with variable temperature and pressure difference

Abstract

The utility model belongs to the technical field of variable-temperature drying, and particularly relates to a variable-temperature differential-pressure puffing and drying device for fruits and vegetables, which comprises a lap joint support table, a negative-pressure puffing tank detachably mounted on the outer side surface of the top of the lap joint support table, and a fruit and vegetable puffing cylinder movably sleeved on the inner side wall surface of the negative-pressure puffing tank, a hydraulic limiting rod is arranged on the surface of one side of the lap joint supporting table, and a butt joint lock cover is fixedly connected to the surface of the outer side of the output end of the hydraulic limiting rod. After fruits and vegetables in the fruit and vegetable puffing cylinder are dried at high temperature in the negative-pressure puffing tank, the fruit and vegetable puffing cylinder is pulled out from the interior of a lap joint supporting table by matching with a hydraulic limiting rod butt joint lock cover, and at the moment, a closed arc plate on the top surface of the fruit and vegetable puffing cylinder is pressed by matching with a horn sleeve on the inner side wall surface of the negative-pressure puffing tank; an air opening in the surface of the top of the fruit and vegetable puffing cylinder is closed, and the fruit and vegetable puffing cylinder is in a negative pressure state in the negative pressure puffing tank.

Description

Technical Field

[0001] The utility model belongs to the technical field of variable-temperature drying, and specifically relates to a variable-temperature differential-pressure puffing drying device for fruits and vegetables. Background Technique

[0002] The differential-pressure puffing treatment device includes a drying body, a vacuum tank, and a heating device. In the existing technology, fresh fruits and vegetables to be puffed are laid flat inside the drying body, and the inside of the drying body is heated by the heating device. During the heating process, the moisture inside the fresh fruits and vegetables is continuously evaporated and vaporized through the heating device. During the heating process, the pressure inside the drying body continuously rises, the temperature inside the fresh fruits and vegetables continuously increases, and dehydration drying is carried out under a vacuum state, thereby producing natural fruit and vegetable puffing foods with expanded volume and crispy taste.

[0003] A patent with the publication number CN216493378U discloses a variable-temperature differential-pressure puffing drying device for fresh fruits and vegetables, which includes a drying body. The drying body is a hollow cylinder, one end of the drying body is open, a sealing cover is provided at the open end of the drying body, a plurality of air-permeable holes are provided on the drying ring, the air-permeable holes are evenly distributed on the drying ring, and a plurality of heating rods are further connected to the inner wall at the other end of the drying body. The heating rods are evenly distributed on both sides of the drying ring. A vacuum tank is provided on one side of the drying body, the drying body is communicated with the vacuum tank through an exhaust pipe, and a pressure relief valve is communicated between the exhaust pipes, which solves the problem that the existing fresh fruits and vegetables are unevenly heated during the drying process, resulting in a large number of defective products during the puffing process of the fruits and vegetables.

[0004] In the current existing technology, when puffing and drying fruits and vegetables, the fruits and vegetables are first heated, and then the negative pressure in the vacuum tank is used to pump the water vapor in the drying box into the vacuum tank, so that the fruits and vegetables expand rapidly after losing moisture. In the existing technology, after the fruits and vegetables are puffed, the drying box is directly opened and the fruits and vegetables inside are taken out. There is still residual heat in the drying box. Directly opening the drying box easily causes rapid heat loss, thereby increasing energy consumption.

[0005] Therefore, a variable-temperature differential-pressure puffing drying device for fruits and vegetables is proposed to solve the above problems. Summary of the Utility Model

[0006] In order to make up for the deficiencies of the existing technology and solve the above problems, a variable-temperature differential-pressure puffing drying device for fruits and vegetables is proposed.

[0007] The technical solution adopted by the present utility model to solve its technical problems is as follows: The temperature-variable differential pressure puffing and drying device for fruits and vegetables of the present utility model includes a lapping support platform and a negative pressure puffing tank detachably installed on the outer surface of the top of the lapping support platform, a fruit and vegetable puffing cylinder movably sleeved on the inner wall surface of the negative pressure puffing tank. A hydraulic limit rod is arranged on one surface of the lapping support platform, and a docking lock cover is fixedly connected to the outer surface of the output end of the hydraulic limit rod. A horn sleeve is arranged on the inner wall surface of the negative pressure puffing tank and on the outer surface of the fruit and vegetable puffing cylinder. An inlet is opened on the top surface of the fruit and vegetable puffing cylinder. A fixing block is fixedly connected to the inner wall surface of the fruit and vegetable puffing cylinder and at the edge position of the inlet. An elastic arm is fixedly connected to the outer surface of the fixing block, and a closing arc plate movably attached to the inlet is fixedly connected to one end of the elastic arm. An anti-sway baffle is fixedly connected to the inner wall surface of the fruit and vegetable puffing cylinder.

[0008] Preferably, a lapping strip is fixedly connected to the inner wall surface of the negative pressure puffing tank and on the outer surface of the horn sleeve.

[0009] Preferably, the outer surface of the lapping strip is movably lapped on the outer surface of the fruit and vegetable puffing cylinder.

[0010] Preferably, sealing cylinders are fixedly installed at the middle positions on both surfaces of the negative pressure puffing tank.

[0011] Preferably, a limit sleeve is arranged on the outer surface of the negative pressure puffing tank and movably attached to the outer surface of the docking lock cover, and a limit strip is arranged on the outer surface of the docking lock cover.

[0012] Preferably, a high-temperature heater is fixedly installed on the outer surface of the lapping support platform. Two air guide pipes are respectively fixedly installed at the output end of the high-temperature heater. One ends of the two air guide pipes are respectively fixedly installed on both surfaces of the negative pressure puffing tank.

[0013] Preferably, the surface of the end of the air guide pipe connected to the negative pressure puffing tank is arranged on the inner wall surface of the sealing cylinder.

[0014] The beneficial effects of the present utility model:

[0015] The utility model provides a variable-temperature differential-pressure puffing and drying device for fruits and vegetables. After the fruits and vegetables inside the fruit and vegetable puffing cylinder are subjected to high-temperature drying in the negative-pressure puffing tank, the fruit and vegetable puffing cylinder is pulled out from the inside of the lapping support platform by cooperating with the hydraulic limit rod to dock and lock the cover. At this time, the horn sleeve on the inner side wall surface of the negative-pressure puffing tank presses the closing arc plate on the top surface of the fruit and vegetable puffing cylinder, closing the air outlet on the top surface of the fruit and vegetable puffing cylinder. By virtue of the fact that the fruit and vegetable puffing cylinder is in a negative-pressure state inside the negative-pressure puffing tank, an air pressure difference is formed between the fruit and vegetable puffing cylinder and the outside air, adsorbing the closing arc plate on the surface of the fruit and vegetable puffing cylinder, achieving the effect that the closing arc plate is always attached to the top surface of the fruit and vegetable puffing cylinder by means of the air pressure difference, so that the space inside the fruit and vegetable puffing cylinder and the space inside the negative-pressure puffing tank are always in a sealed cavity state, and the gas inside the negative-pressure puffing tank will not leak out along the internal space of the fruit and vegetable puffing cylinder;

[0016] The utility model provides a variable-temperature differential-pressure puffing and drying device for fruits and vegetables. After the closing arc plate completely moves out of the negative-pressure puffing tank, the tail end surface of the fruit and vegetable puffing cylinder closes and seals the air outlet of the negative-pressure puffing tank. At this time, cooperate with the employee to pry open the closing arc plate on the top surface of the fruit and vegetable puffing cylinder. After the air pressure difference inside the fruit and vegetable puffing cylinder and the outside air pressure difference are in a stable state, cooperate with the elastic arm on the outer surface of the fixed block to lift and push out the closing arc plate, so that other closing arc plates are peeled off from the top surface of the fruit and vegetable puffing cylinder. The suddenly influx of gas inside the fruit and vegetable puffing cylinder will cause the moisture in the materials inside the fruit and vegetable puffing cylinder to instantly vaporize and evaporate, causing the materials to instantly expand, achieving the effect that after the pressure difference is balanced, the closing arc plates on the top surface of the fruit and vegetable puffing cylinder can be unfolded at the same time, so that the materials inside the fruit and vegetable puffing cylinder can be puffed due to the instantaneous air pressure impact. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings described herein are used to provide a further understanding of the utility model and constitute a part of this application. The schematic embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an improper limitation of the utility model. In the drawings:

[0018] Figure 1 is a three-dimensional structural schematic diagram of the utility model;

[0019] Figure 2 is a three-dimensional sectional structural schematic diagram of the negative-pressure puffing tank in the utility model;

[0020] Figure 3 is a three-dimensional unfolded structural schematic diagram of the negative-pressure puffing tank in the utility model;

[0021] Figure 4 is a three-dimensional sectional structural schematic diagram of the fruit and vegetable puffing cylinder in the utility model;

[0022] Figure 5 It is a schematic perspective view of the expanded sectional structure of the fruit and vegetable puffing cylinder in the present utility model;

[0023] Figure 6 It is a schematic perspective view of the sectional structure of a partial position of the negative pressure puffing tank in the present utility model.

[0024] Legend: 11, lapping support platform; 111, high-temperature heater; 112, air duct; 12, negative pressure puffing tank; 121, sealing cylinder; 122, limit sleeve; 123, docking lock cover; 124, hydraulic limit rod; 125, limit strip; 126, lapping strip; 127, horn sleeve; 13, fruit and vegetable puffing cylinder; 131, anti-sway baffle; 132, fixing block; 133, elastic arm; 134, closing arc plate. Specific embodiments

[0025] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0026] The following gives specific embodiments.

[0027] Please refer to Figure 1 - Figure 6 , the present utility model provides a fruit and vegetable variable temperature differential pressure puffing and drying device, including a lapping support platform 11 and a negative pressure puffing tank 12 detachably installed on the outer surface of the top of the lapping support platform 11, a fruit and vegetable puffing cylinder 13 movably sleeved on the inner wall surface of the negative pressure puffing tank 12, a hydraulic limit rod 124 provided on one side surface of the lapping support platform 11, a docking lock cover 123 fixedly connected to the outer surface of the output end of the hydraulic limit rod 124, and a horn sleeve 127 provided on the inner wall surface of the negative pressure puffing tank 12 and on the outer surface of the fruit and vegetable puffing cylinder 13; an inlet is provided on the top surface of the fruit and vegetable puffing cylinder 13, a fixing block 132 is fixedly connected to the inner wall surface of the fruit and vegetable puffing cylinder 13 and at the edge position of the inlet, an elastic arm 133 is fixedly connected to the outer surface of the fixing block 132, a closing arc plate 134 movably attached to the inlet is fixedly connected to one end of the elastic arm 133, and an anti-sway baffle 131 is fixedly connected to the inner wall surface of the fruit and vegetable puffing cylinder 13;

[0028] During operation, after the fruits and vegetables inside the fruits and vegetables puffing cylinder 13 are subjected to high-temperature drying in the negative-pressure puffing tank 12, the docking lock cover 123 is cooperated with the hydraulic limit rod 124 to pull the fruits and vegetables puffing cylinder 13 out of the inside of the lapping support platform 11. At this time, the horn sleeve 127 on the inner side wall surface of the negative-pressure puffing tank 12 presses the closing arc plate 134 on the top surface of the fruits and vegetables puffing cylinder 13 to close the air vents on the top surface of the fruits and vegetables puffing cylinder 13. Since the fruits and vegetables puffing cylinder 13 is in a negative-pressure state inside the negative-pressure puffing tank 12, an air pressure difference is formed between the fruits and vegetables puffing cylinder 13 and the outside air, and the closing arc plate 134 is adsorbed on the surface of the fruits and vegetables puffing cylinder 13, achieving the effect that the closing arc plate 134 always adheres to the top surface of the fruits and vegetables puffing cylinder 13 by using the air pressure difference, so that the space inside the fruits and vegetables puffing cylinder 13 and the space inside the negative-pressure puffing tank 12 are always in a sealed cavity state, and the gas inside the negative-pressure puffing tank 12 will not leak out along the internal space of the fruits and vegetables puffing cylinder 13; after the closing arc plate 134 completely moves out of the inside of the negative-pressure puffing tank 12, the tail end surface of the fruits and vegetables puffing cylinder 13 will close and seal the air vent of the negative-pressure puffing tank 12. At this time, the employee cooperates to pry open the closing arc plate 134 on the top surface of the fruits and vegetables puffing cylinder 13, so that the air pressure difference inside the fruits and vegetables puffing cylinder 13 and the outside air pressure difference are in a stable state. Then, the elastic arm 133 on the outer surface of the fixed block 132 is used to lift and push the closing arc plate 134 out, so that the other closing arc plates 134 are peeled off from the top surface of the fruits and vegetables puffing cylinder 13. The suddenly influx of gas inside the fruits and vegetables puffing cylinder 13 will cause the moisture in the materials inside the fruits and vegetables puffing cylinder 13 to instantaneously vaporize and evaporate, causing the materials to instantaneously expand, achieving the effect that after the pressure difference is balanced, the closing arc plates 134 on the top surface of the fruits and vegetables puffing cylinder 13 can be unfolded at the same time, so that the materials inside the fruits and vegetables puffing cylinder 13 can be puffed due to the instantaneous air pressure impact.

[0029] Further, as Figures 1 to 6 shown, a lapping strip 126 is fixedly connected to the inner side wall surface of the negative-pressure puffing tank 12 and on the outer surface of the horn sleeve 127. The outer surface of the lapping strip 126 is movably lapped on the outer surface of the fruits and vegetables puffing cylinder 13. Sealing cylinders 121 are fixedly installed on the two side surfaces of the negative-pressure puffing tank 12 and at the middle positions. A limit sleeve 122 is arranged on the outer surface of the negative-pressure puffing tank 12 and is movably attached to the outer surface of the docking lock cover 123. A limit strip 125 is arranged on the outer surface of the docking lock cover 123. A high-temperature heater 111 is fixedly installed on the outer surface of the lapping support platform 11. Two air guide pipes 112 are fixedly installed on the output ends of the high-temperature heater 111. One ends of the two air guide pipes 112 are respectively fixedly installed on the two side surfaces of the negative-pressure puffing tank 12. The surface of the air guide pipe 112 connected to the negative-pressure puffing tank 12 is arranged on the inner side wall surface of the sealing cylinder 121.

[0030] During operation, put the fruits and vegetables into the interior of the fruit and vegetable puffing cylinder 13. The anti-slosh baffle 131 is used to separate and concentrate the fruits and vegetables, preventing the fruits and vegetables on the wall from piling up together. At the same time, the hydraulic limit rod 124 is used to pull the limit strip 125 and the docking lock cover 123, so that the fruit and vegetable puffing cylinder 13 enters the interior of the negative pressure puffing tank 12 one by one. The fruits and vegetables inside the negative pressure puffing tank 12 are heated by the high-temperature heater 111. Then, the interior of the negative pressure puffing tank 12 is evacuated to make the interior of the negative pressure puffing tank 12 in a negative pressure state. Then, using the negative pressure inside the negative pressure puffing tank 12, the water vapor generated by the fruits and vegetables in the negative pressure puffing tank 12 is evacuated, so that the fruits and vegetables expand rapidly after losing moisture.

[0031] Working principle: Put the fruits and vegetables into the interior of the fruit and vegetable puffing cylinder 13. The anti-slosh baffle 131 is used to separate and concentrate the fruits and vegetables, preventing the fruits and vegetables on the wall from piling up together. At the same time, the hydraulic limit rod 124 is used to pull the limit strip 125 and the docking lock cover 123, so that the fruit and vegetable puffing cylinder 13 enters the interior of the negative pressure puffing tank 12 one by one. The fruits and vegetables inside the negative pressure puffing tank 12 are heated by the high-temperature heater 111. Then, the interior of the negative pressure puffing tank 12 is evacuated to make the interior of the negative pressure puffing tank 12 in a negative pressure state. Then, using the negative pressure inside the negative pressure puffing tank 12, the water vapor generated by the fruits and vegetables in the negative pressure puffing tank 12 is evacuated, so that the fruits and vegetables expand rapidly after losing moisture

[0032] When the fruits and vegetables inside the fruit and vegetable puffing cylinder 13 are subjected to high-temperature drying in the negative pressure puffing tank 12, the docking lock cover 123 is used in cooperation with the hydraulic limit rod 124 to pull the fruit and vegetable puffing cylinder 13 out of the interior of the overlapping support platform 11. At this time, the horn sleeve 127 on the inner side wall of the negative pressure puffing tank 12 is used to press the closing arc plate 134 on the top surface of the fruit and vegetable puffing cylinder 13, closing the air vents on the top surface of the fruit and vegetable puffing cylinder 13. Using the fact that the fruit and vegetable puffing cylinder 13 is in a negative pressure state inside the negative pressure puffing tank 12, an air pressure difference is formed between the fruit and vegetable puffing cylinder 13 and the outside air, and the closing arc plate 134 is adsorbed on the surface of the fruit and vegetable puffing cylinder 13, achieving the effect that the closing arc plate 134 always adheres to the top surface of the fruit and vegetable puffing cylinder 13 by using the air pressure difference, so that the space inside the fruit and vegetable puffing cylinder 13 and the space inside the negative pressure puffing tank 12 are always in a sealed cavity state, and the gas inside the negative pressure puffing tank 12 will not leak out along the internal space of the fruit and vegetable puffing cylinder 13;

[0033] After the closing arc plate 134 completely moves out of the interior of the negative pressure puffing tank 12, the tail end surface of the fruit and vegetable puffing cylinder 13 will close and seal the air outlet of the negative pressure puffing tank 12. At this time, cooperate with the employee to pry open the closing arc plate 134 on the top surface of the fruit and vegetable puffing cylinder 13, so that the air pressure difference inside the fruit and vegetable puffing cylinder 13 and the external air pressure difference are in a stable state. Then, cooperate with the elastic arm 133 on the outer surface of the fixing block 132 to lift and push out the closing arc plate 134, so that the other closing arc plates 134 are peeled off from the top surface of the fruit and vegetable puffing cylinder 13. The suddenly influx of gas inside the fruit and vegetable puffing cylinder 13 will cause the moisture in the material inside the fruit and vegetable puffing cylinder 13 to instantaneously vaporize and evaporate, causing the material to instantaneously expand. After achieving the use of pressure difference balance, the closing arc plates 134 on the top surface of the fruit and vegetable puffing cylinder 13 can be unfolded simultaneously, so that the material inside the fruit and vegetable puffing cylinder 13 can form a puffing effect due to the instantaneous air pressure impact.

[0034] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification only illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed.

Claims

1. Temperature-variable differential pressure puffing drying device for fruits and vegetables, comprising a lapping support table (11) and a negative pressure puffing tank (12) detachably installed on the outer surface of the top of the lapping support table (11), and a fruit and vegetable puffing cylinder (13) movably sleeved on the inner wall surface of the negative pressure puffing tank (12), characterized in that: On one side surface of the overlapping support platform (11), a hydraulic limiting rod (124) is provided. On the outer surface of the output end of the hydraulic limiting rod (124), a docking lock cover (123) is fixedly connected. On the inner wall surface of the negative pressure puffing tank (12) and on the outer surface of the fruit and vegetable puffing cylinder (13), a horn sleeve (127) is provided; on the top surface of the fruit and vegetable puffing cylinder (13), a feeding port is opened. On the inner wall surface of the fruit and vegetable puffing cylinder (13) and at the edge position of the feeding port, a fixing block (132) is fixedly connected. On the outer surface of the fixing block (132), an elastic arm (133) is fixedly connected. At one end of the elastic arm (133), a closing arc plate (134) that is movably attached to the feeding port is fixedly connected. On the inner wall surface of the fruit and vegetable puffing cylinder (13), an anti-sway baffle (131) is fixedly connected.

2. The temperature-variable and pressure-difference puffing and drying device for fruits and vegetables according to claim 1, wherein: On the inner wall surface of the negative pressure puffing tank (12) and on the outer surface of the horn sleeve (127), an overlapping strip (126) is fixedly connected.

3. The fruit and vegetable variable-temperature and differential-pressure puffing drying device according to claim 2, wherein: The outer surface of the overlapping strip (126) is movably overlapped on the outer surface of the fruit and vegetable puffing cylinder (13).

4. The temperature-variable pressure-difference puffing and drying device for fruits and vegetables according to claim 1, characterized in that: On both side surfaces of the negative pressure puffing tank (12) and at the middle position, a sealing cylinder (121) is fixedly installed.

5. The temperature-variable and pressure-difference puffing and drying device for fruits and vegetables according to claim 1, characterized in that: On the outer surface of the negative pressure puffing tank (12) and movably attached to the outer surface of the docking lock cover (123), a limiting sleeve (122) is provided. On the outer surface of the docking lock cover (123), a limiting strip (125) is provided.

6. The temperature-variable and pressure-difference puffing and drying device for fruits and vegetables according to claim 1, characterized in that: On the outer surface of the overlapping support platform (11), a high-temperature heater (111) is fixedly installed. On the output end of the high-temperature heater (111), two air ducts (112) are respectively fixedly installed. One ends of the two air ducts (112) are respectively fixedly installed on both side surfaces of the negative pressure puffing tank (12).

7. The temperature-variable differential pressure puffing and drying device for fruits and vegetables according to claim 6, characterized in that: The surface of the end of the air duct (112) connected to the negative pressure puffing tank (12) is arranged on the inner wall surface of the sealing cylinder (121).

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