Fruit and vegetable freeze-drying device based on agricultural product processing

Abstract

The invention relates to the technical field of agricultural product drying, and discloses an agricultural product processing-based fruit and vegetable freeze-drying device which comprises a freezing frame and further comprises a dehydration assembly, an air inlet is formed in the left side of the freezing frame, an air outlet pipe is fixedly mounted on the right side of the freezing frame, and a stirring rod rotationally penetrates through the top of the freezing frame; the dewatering assembly comprises a stirring plate, a cylindrical roller, an elastic telescopic plate, a hollow rod, a solid rod, a material distributing ring, a supporting plate and an elastic telescopic block, the stirring plate is slidably mounted on the circumferential surface of the stirring rod, the cylindrical roller is rotatably mounted on the front side of the stirring plate, and the elastic telescopic plate rotates clockwise to push fruits and vegetables stacked on the left side and the right side of the freezing frame; the elastic telescopic plates can prevent fruits and vegetables from being stacked on the left side and the right side of the freezing frame, thick material layers on the two sides can be pushed back to a strong freezing area in the middle when the elastic telescopic plates rotate clockwise, and the elastic telescopic plates can adapt to different stacking thicknesses, so that fruit and vegetable extrusion caused by hard pushing is avoided.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of agricultural product drying, and particularly relates to a fruit and vegetable freeze-drying device based on agricultural product processing. BACKGROUND

[0002] The fruit and vegetable freeze-drying device is used for preventing agricultural products from mildewing or rotting, thereby prolonging the storage and transportation cycle. For fruit and vegetable freeze-drying, the fruit and vegetable raw materials are frozen below the eutectic point, so that all the water in the fruit and vegetable raw materials is converted into solid ice crystals. Then, through sublimation in a vacuum environment, the ice crystals are directly converted into water vapor and discharged, and finally, the freeze-dried fruit and vegetable products with extremely low water content are obtained.

[0003] A patent with the patent number CN210960206U relates to a fruit and vegetable freeze-drying device and belongs to the technical field of food processing. The device comprises a freezing chamber and a drying tank. The drying tank is arranged in the freezing chamber. The drying tank is provided with a heating disc. The drying tank is connected with a vacuum pump through a pipeline. The device has simple structure and low cost. The whole process is physical dehydration. The processed products do not need to be fried, are healthy and low in fat, have no peculiar smell, and have good taste.

[0004] In the above patent, the whole process is physical dehydration. The processed products do not need to be fried, are healthy and low in fat. However, when the materials are manually added, the materials are unevenly stacked, which causes the fruit and vegetable to be stacked on the left and right sides of the freezing frame. As a result, the fruit and vegetable stacked on the left and right sides of the freezing frame is too thick, is difficult to be uniformly scattered, and is far away from the strong freezing area in the middle of the freezing frame. In addition, the water droplets on the top of the freezing frame freeze, which causes the water droplets to liquefy and fall back when the freezing frame is opened and returns to room temperature, resulting in the softening of the fruit and vegetable. Moreover, when the cold air is sprayed from the air outlet pipe, a small amount of light fruit and vegetable is deposited on the inner wall of the air outlet pipe to form a frozen block and solidify and adhere, which increases the difficulty of subsequent manual cleaning. Therefore, a fruit and vegetable freeze-drying device based on agricultural product processing is needed to solve the above problems. SUMMARY

[0005] The present application relates to the technical field of agricultural product drying, and particularly relates to a fruit and vegetable freeze-drying device based on agricultural product processing.

[0006] To achieve the above object, the present application adopts the following technical scheme: A freeze-drying device for fruits and vegetables based on agricultural product processing includes a freezing frame and a dehydration component. The freezing frame has an air inlet on its left side and an air outlet pipe fixedly installed on its right side. A stirring rod rotatably passes through the top of the freezing frame. The dehydration component includes a stirring plate, a cylindrical roller, an elastic telescopic plate, a hollow rod, a solid rod, a distribution ring, a support plate, and an elastic telescopic block. The stirring plate is slidably mounted on the circumferential surface of the stirring rod. The cylindrical roller is rotatably mounted on the front side of the stirring plate. The elastic telescopic plate is rotatably mounted on the inner wall of the freezing frame. The hollow rod is fixedly mounted on the bottom front side of the stirring plate. The solid rod is fixedly mounted on the inner wall of the freezing frame. The distribution ring is fixedly mounted on the bottom of the stirring plate. The support plate is fixedly mounted on the circumferential surface of the stirring rod. The elastic telescopic block is fixedly mounted on the bottom of the support plate. The free end of the elastic telescopic block is fixedly connected to the stirring plate. Clockwise rotation of the elastic telescopic plate pushes the fruits and vegetables piled on both sides of the freezing frame.

[0007] As a preferred embodiment of the present invention, the free end of the elastic telescopic plate is set as an inclined surface. Setting the free end of the elastic telescopic plate as an inclined surface can reduce the friction between the elastic telescopic plate and the freezing frame. A torsion spring is provided between the elastic telescopic plate and the freezing frame. The torsion spring can support the elastic telescopic plate. The elastic telescopic plate is used to push fruits and vegetables. The feeding ring moves back and forth vertically to flip the fruits and vegetables at the bottom of the freezing frame.

[0008] As a preferred embodiment of the present invention, the distributing ring is used to turn over clumps of fruits and vegetables, the stirring plate is used to break up clumps of fruits and vegetables, and the free end of the elastic telescopic plate is provided with a pushing hole. The pushing hole can prevent the elastic telescopic plate from compacting the fruits and vegetables. The rotating stirring rod drives the stirring plate to rotate, and the rotating stirring plate stirs the fruits and vegetables at the bottom of the freezing frame.

[0009] As a preferred embodiment of the present invention, it further includes a moisture-proof component and a material-pushing component. The moisture-proof component is used to prevent water droplets from dripping from the top of the inner wall of the freezing frame into the fruits and vegetables. The material-pushing component is used to push the fruits and vegetables accumulated inside the air outlet pipe back into the freezing frame. The moisture-proof component includes a moisture-proof frame, a moisture-proof plate, moisture-proof holes, a scraper, a stabilizing plate, and a stabilizing roller. The scraper rotates and contacts the top of the freezing frame to scrape off the icy water droplets on the top of the freezing frame. The moisture-proof frame is slidably mounted on the circumferential surface of the stirring rod. The moisture-proof plate is fixedly mounted on the inner wall of the moisture-proof frame. The moisture-proof holes are opened on the top of the moisture-proof plate. The scraper is located on the top of the moisture-proof plate. The stabilizing plate is fixedly mounted on the inner wall of the freezing frame. The stabilizing roller is rotatably mounted on the front side of the stabilizing plate.

[0010] As a preferred embodiment of the present invention, the moisture-proof component further includes a mounting block and a linkage ring, wherein the mounting block is slidably mounted on the front and rear walls of the moisture-proof frame, and the linkage ring is fixedly mounted on the bottom of the moisture-proof frame.

[0011] As a preferred embodiment of the present invention, the mounting block is in contact with the scraper, the bottom right side of the moisture-proof frame is set as an inclined surface, and a spring is provided between the mounting block and the moisture-proof frame.

[0012] As a preferred embodiment of the present invention, the feeding assembly includes a placement plate, a shielding frame, a linkage plate, a placement ring, an elastic telescopic column, a feeding frame, and a shielding groove. When the feeding frame moves to the left, it contacts the inclined surface of the shielding frame and squeezes the shielding frame upward. The shielding frame reciprocates to shield part of the air outlet pipe. The placement plate is fixedly installed on the inner wall of the freezing frame, the shielding frame is slidably installed on the inner wall of the freezing frame, the linkage plate is fixedly installed on the bottom left side of the shielding frame, the placement ring is fixedly installed on the inner wall of the air outlet pipe, the elastic telescopic column is fixedly installed on the left side of the placement ring, the feeding frame is fixedly installed on the free end of the elastic telescopic column, and the shielding groove is opened on the right side of the shielding frame.

[0013] As a preferred embodiment of the present invention, a second spring is provided between the placement plate and the shielding frame, which can support the shielding frame. The left side of the shielding frame is set as an inclined surface. The pusher frame abuts against the shielding frame. The pusher frame moves back and forth to the left to push the fruits and vegetables accumulated inside the air outlet pipe back into the freezing frame.

[0014] As a preferred embodiment of the present invention, the linkage plate is in contact with the linkage ring, the pusher is in contact with the inner wall of the air outlet pipe, and the linkage ring moves downward and contacts the linkage plate and squeezes the linkage plate.

[0015] The present invention has the following beneficial effects: 1. This invention uses a rotating agitator to stir the fruits and vegetables at the bottom of the freezing frame, ensuring continuous flow and preventing insufficient drying due to clumping and blockage of cold air. A clockwise rotating elastic telescopic plate pushes the fruits and vegetables piled on both sides of the freezing frame, preventing them from accumulating. The clockwise rotation pushes the thicker layers on both sides back to the central, intensely frozen area. The elastic telescopic plate can adapt to different pile thicknesses, avoiding forced pushing that could compress the fruits and vegetables, ensuring even distribution. A reciprocating vertical movement of a distribution ring flips the fruits and vegetables at the bottom of the freezing frame, solving the problem of significant differences in drying levels between upper and lower layers in traditional drying methods, ensuring consistent moisture content for the same batch of fruits and vegetables.

[0016] 2. This invention uses a rotating scraper that continuously contacts the top of the freezing frame to scrape off the icy water droplets. The continuous scraping of the top icy water droplets reduces the problem of water droplets falling back when the freezing frame is opened to return to room temperature after processing. This ensures that the moisture content of the same batch of fruits and vegetables remains stable and meets the standards. Moreover, after the icy water droplets are scraped into the moisture-proof frame, they will turn back into liquid and automatically drain out through the moisture-proof hole when the freezing frame returns to room temperature.

[0017] 3. In this invention, when the pusher moves to the left, it will contact the inclined surface of the shield and squeeze the shield to move upward. The shield moves back and forth to block part of the air outlet pipe. The dynamic shielding causes the cold air to be disturbed, breaking the static cold air layer, allowing the cold air to come into full contact with the fruits and vegetables, shortening the drying time and reducing energy consumption costs.

[0018] 4. This invention pushes a small amount of fruits and vegetables accumulated on the left side of the air outlet duct back into the freezing box by reciprocating the pusher rack, thereby keeping the air outlet duct unobstructed. Furthermore, the broken-up frozen pieces will not stubbornly stick to the inner wall of the air outlet duct, so that operators do not need to use heavy tools to scrape them off, thus simplifying the cleaning process and reducing the labor intensity of operators. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure proposed in this invention; Figure 2 This is a schematic diagram of a half-section of the freezing frame structure proposed in this invention; Figure 3 The present invention proposes Figure 2 Enlarged schematic diagram of section A in the middle; Figure 4 This is a schematic diagram of the internal structure of the freezing frame proposed in this invention; Figure 5 This is a schematic diagram of the half-section structure of the scraper proposed in this invention; Figure 6 This is a schematic diagram of the position and structure of the moisture-proof frame and mounting block proposed in this invention; Figure 7 This is a schematic diagram of the position structure of the placement plate and the shielding frame proposed in this invention.

[0020] In the diagram: 1. Freezing frame; 2. Air inlet; 3. Air outlet; 4. Stirring rod; 5. Stirring plate; 6. Cylindrical roller; 7. Elastic telescopic plate; 8. Hollow rod; 9. Solid rod; 10. Material distribution ring; 11. Support plate; 12. Elastic telescopic block; 131. Moisture-proof frame; 132. Moisture-proof plate; 133. Moisture-proof hole; 134. Scraper; 135. Mounting block; 136. Stabilizing plate; 137. Stabilizing roller; 138. Linkage ring; 141. Placement plate; 142. Baffle frame; 143. Linkage plate; 144. Placement ring; 145. Elastic telescopic column; 146. Pusher frame; 147. Baffle groove. Detailed Implementation

[0021] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0022] Reference Figures 1-6 One embodiment of the present invention is: a fruit and vegetable freeze-drying device based on agricultural product processing, including a freezing frame 1 and a dehydration component. An air inlet 2 is provided on the left side of the freezing frame 1, and an air outlet 3 is fixedly installed on the right side of the freezing frame 1. A stirring rod 4 rotatably passes through the top of the freezing frame 1. The dehydration component includes a stirring plate 5, a cylindrical roller 6, an elastic telescopic plate 7, a hollow rod 8, a solid rod 9, a material distribution ring 10, a support plate 11, and an elastic telescopic block 12. The stirring plate 5 is slidably mounted on the circumferential surface of the stirring rod 4, the cylindrical roller 6 is rotatably mounted on the front side of the stirring plate 5, and the elastic telescopic plate 7 rotates... The hollow rod 8 is fixedly installed on the bottom front side of the stirring plate 5, the solid rod 9 is fixedly installed on the inner wall of the freezing frame 1, the material distribution ring 10 is fixedly installed on the bottom of the stirring plate 5, the support plate 11 is fixedly installed on the circumferential surface of the stirring rod 4, and the elastic telescopic block 12 is fixedly installed on the bottom of the support plate 11. The free end of the elastic telescopic block 12 is fixedly connected to the stirring plate 5. When rotated clockwise, it can push the thick material layers on the left and right sides back to the middle. The elastic telescopic plate 7 can adapt to different stacking thicknesses, thereby avoiding the squeezing of fruits and vegetables caused by hard pushing, and making the fruits and vegetables in the frame evenly distributed.

[0023] The free end of the elastic telescopic plate 7 is set as an inclined surface. By setting the free end of the elastic telescopic plate 7 as an inclined surface, the friction between the elastic telescopic plate 7 and the freezing frame 1 can be reduced. A torsion spring is set between the elastic telescopic plate 7 and the freezing frame 1. The torsion spring can support the elastic telescopic plate 7. The elastic telescopic plate 7 is used to push the fruits and vegetables. The reciprocating vertical movement of the distributing ring 10 can realize the up and down turning of the fruits and vegetables, thereby solving the problem of large differences in the drying degree between the upper and lower layers in traditional drying, and making the moisture content of the same batch of fruits and vegetables consistent.

[0024] The distributing ring 10 is used to turn over clumps of fruits and vegetables, the stirring plate 5 is used to break up clumps of fruits and vegetables, and the free end of the elastic telescopic plate 7 has a pushing hole. The pushing hole can prevent the elastic telescopic plate 7 from compacting the fruits and vegetables. The rotating stirring rod 4 drives the stirring plate 5 to rotate. The rotating stirring plate 5 stirs the fruits and vegetables at the bottom of the freezing frame 1. The rotating stirring plate 5 makes the fruits and vegetables at the bottom of the freezing frame 1 flow continuously, preventing local clumps from causing the cold air to be unable to penetrate and resulting in insufficient drying.

[0025] During operation: A drying door is provided on the front side of the freezing frame 1. After opening the drying door, put the fruits and vegetables to be dried into the freezing frame 1. After the fruits and vegetables are put into the freezing frame 1, close the drying door. After the drying door is closed, the drying airflow enters the freezing frame 1 through the air inlet 2 and dries and dehydrates the fruits and vegetables. A servo motor is provided on the top of the freezing frame 1, and the output end of the servo motor is fixedly connected to the stirring rod 4. When the servo motor is started, it drives the stirring rod 4 to rotate. The rotation of the stirring rod 4 drives the stirring plate 5 to rotate. The rotation of the stirring plate 5 stirs the fruits and vegetables at the bottom of the freezing frame 1. At the same time, the rotation of the stirring plate 5 will drive the cylindrical roller 6 to rotate. The rotation of the cylindrical roller 6 will contact the elastic telescopic plate 7 and squeeze the elastic telescopic plate 7. The elastic telescopic plate 7 will rotate clockwise due to the squeezing of the cylindrical roller 6. The clockwise rotation of the elastic telescopic plate 7 will squeeze the torsion spring. The torsion spring will deform and store force due to the squeezing of the elastic telescopic plate 7. Furthermore, the clockwise rotation of the elastic telescopic plate 7 will push the fruits and vegetables piled on both sides of the freezing frame 1. The fruits and vegetables on both sides of the freezing frame 1 are prevented from piling up on both sides of the freezing frame 1 by the push of the elastic telescopic plate 7. At the same time, the rotation of the stirring plate 5 will drive the hollow rod 8 to rotate. The rotation of the hollow rod 8 will contact the solid rod 9 and squeeze the solid rod 9. At the same time, the hollow rod 8 will move upward due to the reaction force of the squeezed solid rod 9. The upward movement of the hollow rod 8 will drive the stirring plate 5 to move upward. The upward movement of the stirring plate 5 will squeeze the elastic telescopic block 12. The elastic telescopic block 12 is compressed and retracted by the stirring plate 5 and stores force. When the stirring plate 5 continues to rotate, it will drive the hollow rod 8 to continue to rotate. When the hollow rod 8 continues to rotate, it will disengage from the solid rod 9. After the hollow rod 8 disengages from the solid rod 9, the stirring plate 5 moves downward and resets under the elastic force of the elastic telescopic block 12. The downward movement of the stirring plate 5 drives the material distribution ring 10 to move downward and reset. The material distribution ring 10 moves back and forth vertically to turn over the fruits and vegetables at the bottom of the freezing frame 1.

[0026] Reference Figures 1-7 Based on the above embodiments, another embodiment of the present invention further includes a moisture-proof component and a pushing component. The moisture-proof component is used to prevent water droplets from dripping into the fruits and vegetables from the top of the inner wall of the freezing frame 1. The pushing component is used to push the fruits and vegetables accumulated inside the air outlet duct 3 back into the freezing frame 1. The moisture-proof component includes a moisture-proof frame 131, a moisture-proof plate 132, a moisture-proof hole 133, a scraper 134, a stabilizing plate 136, and a stabilizing roller 137. The moisture-proof frame 131 is slidably mounted on the circumferential surface of the stirring rod 4. The moisture-proof plate 132 is fixedly mounted on the inner wall of the moisture-proof frame 131. The moisture-proof hole 133 is opened on the top of the moisture-proof plate 132. The scraper 134 is set on the top of the moisture-proof plate 132. The stabilizing plate 136 is fixedly mounted on the inner wall of the freezing frame 1. The stabilizing roller 137 is rotatably mounted on the front side of the stabilizing plate 136. The scraper 134 continuously scrapes off the top icy water droplets, which can reduce the problem of water droplets falling back when the freezing frame 1 is opened to return to room temperature after processing, and ensure that the moisture content of the same batch of fruits and vegetables meets the standard.

[0027] The moisture-proof component also includes a mounting block 135 and a linkage ring 138. The mounting block 135 is slidably mounted on the front and rear walls of the moisture-proof frame 131, and the linkage ring 138 is fixedly mounted on the bottom of the moisture-proof frame 131.

[0028] The mounting block 135 contacts the scraper 134. The bottom right side of the moisture-proof frame 131 is set as an inclined surface. A spring is provided between the mounting block 135 and the moisture-proof frame 131. The spring can support the mounting block 135. The scraper 134 is limited by the mounting block 135, thereby preventing excessive friction between the scraper 134 and the freezing frame 1. After the frozen water droplets are scraped into the interior of the moisture-proof frame 131, when the freezing frame 1 returns to room temperature, the frozen water droplets inside the moisture-proof frame 131 will return to a liquid state and be automatically discharged from the moisture-proof hole 133.

[0029] The feeding assembly includes a placement plate 141, a shielding frame 142, a linkage plate 143, a placement ring 144, an elastic telescopic column 145, a feeding rack 146, and a shielding groove 147. The placement plate 141 is fixedly installed on the inner wall of the freezing frame 1, the shielding frame 142 is slidably installed on the inner wall of the freezing frame 1, the linkage plate 143 is fixedly installed on the bottom left side of the shielding frame 142, the placement ring 144 is fixedly installed on the inner wall of the air outlet duct 3, the elastic telescopic column 145 is fixedly installed on the left side of the placement ring 144, the feeding rack 146 is fixedly installed on the free end of the elastic telescopic column 145, and the shielding groove 147 is opened on the right side of the shielding frame 142. The dynamic shielding causes the cold air to turbulently, breaking the static cold air layer, allowing the cold air to come into more full contact with the fruits and vegetables, reducing heat waste, and shortening the drying time to reduce energy consumption costs.

[0030] A second spring is provided between the placement plate 141 and the shielding frame 142. The second spring can support the shielding frame 142. The left side of the shielding frame 142 is set as an inclined surface. The pusher 146 abuts against the shielding frame 142. The pusher 146 moves back and forth, moving 146 to the left and pushing the fruits and vegetables piled up inside the air outlet duct 3 back into the freezing frame 1. By pushing the piled fruits and vegetables back into the freezing frame 1 through the pusher 146, the air outlet duct 3 can be kept unobstructed, thereby avoiding the extension of drying time due to poor ventilation.

[0031] The linkage plate 143 contacts the linkage ring 138, and the pusher 146 contacts the inner wall of the air outlet duct 3. When the linkage ring 138 moves downward, it will contact the linkage plate 143 and squeeze the linkage plate 143. The pusher 146 can break up the small amount of clumps of fruits and vegetables between the pusher 146 and the placement ring 144. The clumps are broken down into fine particles or loose powder, which will not form stubborn adhesion to the inner wall of the air outlet duct 3. This eliminates the need for operators to use heavy tools to scrape them off, thereby simplifying the cleaning process and reducing the labor intensity of operators.

[0032] During operation, the rotation of the stirring rod 4 will cause the moisture-proof frame 131 to rotate, the rotation of the moisture-proof frame 131 will cause the moisture-proof board 132 to rotate, the rotation of the moisture-proof board 132 will cause the scraper 134 to rotate, and the rotation of the moisture-proof frame 131 will contact the stabilizing roller 137 and squeeze the stabilizing roller 137. The moisture-proof frame 131 moves upward due to the reaction force of the stabilizing roller 137. The upward movement of the moisture-proof frame 131 will cause the moisture-proof plate 132 to move upward. The upward movement of the moisture-proof plate 132 will cause the scraper 134 to move upward. The upward movement of the scraper 134 will contact the top of the inner wall of the freezing frame 1 and scrape off the icy water droplets on the top of the inner wall of the freezing frame 1. After being scraped off by the scraper 134, the icy water droplets fall into the interior of the moisture-proof frame 131 under their own gravity. After the moisture-proof frame 131 continues to rotate and disengages from the contact with the stabilizing roller 137, the moisture-proof frame 131 moves downward and resets under its own gravity. The downward movement and reset of the moisture-proof frame 131 will cause the moisture-proof plate 132 and the scraper 134 to move downward and reset.

[0033] When the moisture-proof frame 131 moves downward to reset, it will cause the linkage ring 138 to move downward. When the linkage ring 138 moves downward, it will contact the linkage plate 143 and squeeze the linkage plate 143. The linkage plate 143 moves downward under the squeeze of the linkage ring 138. The downward movement of the linkage plate 143 will cause the shielding frame 142 to move downward. When the shielding frame 142 moves downward, it will contact the pusher frame 146 and squeeze the pusher frame 146. The pusher frame 146 will move to the right due to the squeezing of the shielding frame 142. The pusher frame 146 will squeeze the free end of the elastic telescopic column 145 due to the squeezing of the pusher frame 146. The free end of the elastic telescopic column 145 will move to the right and retract and store force. When the moisture-proof frame 131 moves upward, the upward movement of the moisture-proof frame 131 will drive the linkage ring 138 to move and disengage from the linkage plate 143. After the linkage ring 138 disengages from the linkage plate 143; Under the elastic force of the elastic telescopic column 145, the pusher 146 moves to the left and resets. The pusher 146 moves back and forth to the left and pushes the fruits and vegetables accumulated inside the air outlet 3 back into the freezing frame 1. At the same time, the pusher 146 moves to the left and contacts the inclined surface of the shield 142 and squeezes the shield 142 to move upward. The shield 142 moves back and forth to block part of the air outlet 3. The pusher 146 moves back and forth to break up a small amount of clumps of fruits and vegetables between the pusher 146 and the placement ring 144.

[0034] The above are merely preferred embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A fruit and vegetable freeze-drying device based on agricultural product processing, comprising a freezing frame (1), characterized in that, It also includes dehydration assembly, moisture-proof assembly and push assembly, the left side of the freezing frame (1) is provided with an air inlet (2), the right side of the freezing frame (1) is fixedly provided with an air outlet pipe (3), the top of the freezing frame (1) is rotatably penetrated by an agitating rod (4); The dehydration assembly includes an agitating plate (5), a cylindrical roller (6), an elastic expansion plate (7), a hollow rod (8), a solid rod (9), a distributing ring (10), a supporting plate (11) and an elastic expansion block (12), the agitating plate (5) is slidably installed on the circumferential surface of the agitating rod (4), the cylindrical roller (6) is rotatably installed on the front side of the agitating plate (5), the elastic expansion plate (7) is rotatably installed on the inner wall of the freezing frame (1), the hollow rod (8) is fixedly installed on the bottom of the front side of the agitating plate (5), the solid rod (9) is fixedly installed on the inner wall of the freezing frame (1), the distributing ring (10) is fixedly installed on the bottom of the agitating plate (5), the supporting plate (11) is fixedly installed on the circumferential surface of the agitating rod (4), and the elastic expansion block (12) is fixedly installed on the bottom of the supporting plate (11). The moisture-proof assembly is used for preventing water droplets on the top of the inner wall of the freezing frame (1) from dropping into the fruits and vegetables, and the push assembly is used for pushing the fruits and vegetables accumulated in the air outlet pipe (3) back into the freezing frame (1).

2. The fruit and vegetable freeze-drying device based on agricultural product processing according to claim 1, characterized in that, The free end of the elastic expansion plate (7) is provided as an inclined surface, a torsion spring is arranged between the elastic expansion plate (7) and the freezing frame (1), and the elastic expansion plate (7) is used for pushing the fruits and vegetables.

3. The fruit and vegetable freeze-drying apparatus based on agricultural product processing according to claim 2, characterized in that, The distributing ring (10) is used for turning the clumped fruits and vegetables, the agitating plate (5) is used for dispersing the clumped fruits and vegetables, and the free end of the elastic expansion plate (7) is provided with a pushing hole.

4. The fruit and vegetable freeze-drying apparatus based on agricultural product processing according to claim 3, characterized in that, The moisture-proof assembly includes a moisture-proof frame (131), a moisture-proof plate (132), a moisture-proof hole (133), a scraper (134), a stabilizing plate (136) and a stabilizing roller (137), the moisture-proof frame (131) is slidably installed on the circumferential surface of the agitating rod (4), the moisture-proof plate (132) is fixedly installed on the inner wall of the moisture-proof frame (131), the moisture-proof hole (133) is formed in the top of the moisture-proof plate (132), the scraper (134) is arranged on the top of the moisture-proof plate (132), the stabilizing plate (136) is fixedly installed on the inner wall of the freezing frame (1), and the stabilizing roller (137) is rotatably installed on the front side of the stabilizing plate (136).

5. A fruit and vegetable freeze-drying apparatus based on agricultural product processing according to claim 4, characterized in that, The moisture-proof assembly further includes a mounting block (135) and a linkage ring (138), the mounting block (135) is slidably installed on the front and rear walls of the moisture-proof frame (131), and the linkage ring (138) is fixedly installed on the bottom of the moisture-proof frame (131).

6. A fruit and vegetable freeze-drying apparatus based on agricultural product processing according to claim 5, characterized in that, The mounting block (135) is in contact with the scraper (134), the right bottom of the moisture-proof frame (131) is provided as an inclined surface, and a spring one is arranged between the mounting block (135) and the moisture-proof frame (131).

7. A freeze-drying apparatus for fruits and vegetables based on agricultural products processing according to claim 6, characterized in that, Said pushing assembly comprises a placing plate (141), a shielding frame (142), a linkage plate (143), a placing ring (144), an elastic telescopic column (145), a pushing frame (146) and a shielding groove (147), the placing plate (141) is fixedly installed on the inner wall of the freezing frame (1), the shielding frame (142) is slidingly installed on the inner wall of the freezing frame (1), the linkage plate (143) is fixedly installed on the left bottom of the shielding frame (142), the placing ring (144) is fixedly installed on the inner wall of the air outlet pipe (3), the elastic telescopic column (145) is fixedly installed on the left side of the placing ring (144), the pushing frame (146) is fixedly installed on the free end of the elastic telescopic column (145), and the shielding groove (147) is arranged on the right side of the shielding frame (142).

8. The fruit and vegetable freeze-drying apparatus based on agricultural product processing according to claim 7, characterized in that, Spring No. 2 is arranged between the placing plate (141) and the shielding frame (142), the left side of the shielding frame (142) is arranged as an inclined surface, and the pushing frame (146) is in contact with the shielding frame (142).

9. A fruit and vegetable freeze-drying apparatus based on agricultural product processing according to claim 8, characterized in that, The linkage plate (143) is in contact with the linkage ring (138), and the pushing frame (146) is in contact with the inner wall of the air outlet pipe (3).

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