Vacuum food freeze-drying device

Abstract

The invention discloses a vacuum food freeze-drying device, and relates to the technical field of freeze-drying devices.The vacuum food freeze-drying device comprises a bottom frame, a cabinet is fixedly mounted on the top surface of the bottom frame, a valve pipe penetrates through and is fixedly mounted on the right side of the top surface of the cabinet, a bottom plate is fixed to the bottom end of the interior of the bottom frame, and an air extracting pump is fixedly mounted on the top surface of the bottom plate; drying assemblies are arranged on the left side and the right side of the cabinet body, each drying assembly comprises two square shells, the two square shells penetrate through and are fixed to the left side and the right side of the cabinet body, a plurality of resistance heating rods are fixedly installed on the inner walls of the two square shells correspondingly, and two heat conduction plates are fixed to the inner walls of the two square shells correspondingly; the two heat conduction plates are located on the sides, close to each other, of the multiple resistance heating rods correspondingly, freeze-dried food is evenly heated through heat transmitted by the heat conduction plates, and therefore the problem that the drying effect of the freeze-dried food is poor due to uneven drying of the freeze-dried food is solved.

Description

Technical Field

[0001] The invention relates to the technical field of freeze drying, in particular to a vacuum food freeze drying device. Background Art

[0002] The main function of the vacuum food freeze drying device is to dry and dehydrate the freeze-dried food in a vacuum to maximize the preservation of the color, aroma, nutritional components and appearance of the original fresh food, thereby improving the drying efficiency of the freeze-dried food and the quality of the product.

[0003] The patent with publication number CN212139188U discloses a freeze-dried food drying device, which specifically relates to the field of drying technology, including a first box body, a second box body is fixedly connected to the top of the first box body, a heater is fixedly connected to the top of the second box body, a second feed port is opened on one side of the second box body, a feed hopper is provided on one side of the second feed port, the feed hopper is fixedly connected to the second box body, and a heat dissipation mechanism is provided at the bottom of the second box body. The patent drives the eccentric wheel to rotate through a motor. When the eccentric wheel rotates downward, the second spring rebounds and drives the first placement plate to move downward. When the first placement plate contacts the cross plate, the first placement plate is tilted, so that the freeze-dried food on the first placement plate falls on the second placement plate. When the eccentric wheel rotates and contacts the second placement plate, the freeze-dried food on the second placement plate falls on the inclined plate. The heat dissipation effect is good, thereby improving the taste and quality of the food.

[0004] However, the current freeze-dried food drying device has the following problems: when the freeze-dried food drying device is in use, the freeze-dried food will be unevenly dried during the vacuum drying and dehydration process, resulting in poor drying effect of the freeze-dried food. Therefore, we propose a vacuum food freeze drying device. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a vacuum food freeze-drying device, which solves the problems raised in the above background technology.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a vacuum food freeze-drying device, comprising a bottom frame, a cabinet body is fixedly installed on the top surface of the bottom frame, a valve pipe is penetrated and fixedly installed on the right side of the top surface of the cabinet body, a bottom plate is fixed at the bottom end of the bottom frame, an air pump is fixedly installed on the top surface of the bottom plate, an air extraction pipe on the top surface of the air extraction pump penetrates and is fixedly connected to the bottom surface of the cabinet body, an air outlet is opened in the middle of the left side of the air extraction pump, and drying components are arranged on the left and right sides of the cabinet body;

[0007] The drying component includes two square shells, the two square shells penetrate and are fixed on the left and right sides of the cabinet, the inner walls of the two square shells are respectively fixedly installed with a plurality of resistance heating rods, the inner walls of the two square shells are respectively fixed with two heat conducting plates, the two heat conducting plates are respectively located on the side where the plurality of resistance heating rods are close to each other, a round shell is fixedly installed in the middle of the top surface of the cabinet, a servo motor is fixedly installed on the inner top of the round shell, a long rod is penetrated and rotatably installed in the middle of the top surface of the cabinet, the bottom end of the long rod is rotatably connected to the bottom end of the cabinet, the top end of the long rod is fixedly connected to the bottom surface of the rotating shaft of the servo motor, a plurality of material trays are fixed on the outer wall of the long rod, a plurality of air holes are respectively opened on the bottom surfaces of the plurality of material trays, and the plurality of material trays are respectively located in the middle of the two heat conducting plates, the long rod drives the material tray to rotate forward, the material tray drives the freeze-dried food to rotate forward, the heat conducting plate heats and dries the rotating material tray, the moisture of the freeze-dried food in a vacuum state begins to evaporate, so that during the rotation of the freeze-dried food, the heat transferred by the heat conducting plate evenly heats the freeze-dried food, and an anti-sway component is provided at the bottom of the outer wall of the long rod;

[0008] The anti-sway component includes a thin rod, which passes through and is fixed to the bottom of the outer wall of the long rod. U-shaped blocks are fixed at both ends of the thin rod. Two rollers are rotatably installed on the inner walls of the two U-shaped blocks. A ring plate is fixed to the inner bottom end of the cabinet. The outer walls of the two rollers are in rolling contact with the inner walls of the ring plate. The U-shaped block drives the rollers to rotate forward, and the rollers roll in the ring plate. Under the friction of the rollers, the shaking of the long rod when it rotates is reduced;

[0009] Air fan devices are arranged on both sides of the outer wall of the thin rod, and an anti-corrosion device is arranged on the side of the outer wall of the air fan device which is away from each other.

[0010] According to the above technical solution, a cabinet door is rotatably provided on the right side of the cabinet body, a sealing ring is provided on the back edge of the cabinet door of the cabinet body, and a handle is provided on the left side of the front side of the cabinet door of the cabinet body.

[0011] According to the above technical solution, the long rod is located in the middle of the cabinet, and the outer wall edges of several of the material trays are respectively set to a convex shape.

[0012] According to the above technical solution, the two rollers are located at the top end of the inner wall of the ring plate, and the air extraction pipe of the valve pipe is located inside the ring plate.

[0013] According to the above technical scheme, the air fan device includes two double-ring frames, two straight rods, four short plates and two inclined fan plates. The two double-ring frames are fixed on both sides of the outer wall of the thin rod, the two straight rods are respectively fixed on the top surfaces of the two double-ring frames, the four short plates are respectively fixed on the two ends of the two straight rods in groups of two, and the two inclined fan plates are respectively fixed on the side where the four short plates are close to each other. The plates drive the inclined fan plates to rotate forward. During the rotation of the inclined fan plates, the inclined fan plates fan the water vapor under the cabinet upward, so that the water vapor is quickly discharged from the valve pipe of the cabinet.

[0014] According to the above technical scheme, the air fan device also includes two short rods, two vertical plates, two arc-shaped spring pieces and two chamfered blocks. The two short rods respectively penetrate and are fixed on the outer walls of the two straight rods, the two vertical plates are respectively fixed at one end of the two short rods away from each other, the two arc-shaped spring pieces are respectively fixed at one side of the two vertical plates away from the two short rods, and the two chamfered blocks are respectively fixed at one end of the two arc-shaped spring pieces away from the two vertical plates. The vertical plates drive the arc-shaped spring pieces to rotate forward, and the arc-shaped spring pieces drive the chamfered blocks to rotate forward. During the forward rotation of the chamfered blocks, the chamfers of the chamfered blocks scrape off foreign matter attached to the wall surface of the ring plate.

[0015] According to the above technical solution, the two straight rods are located above the thin rod, and the chamfers of the two chamfered blocks are in sliding contact with the inner wall of the ring plate.

[0016] According to the above technical scheme, the anti-corrosion device includes two round rods, two sheet plates, two shaft rods and two sponge rollers. The two round rods are respectively fixed on the top of one side of the two vertical plates away from the two short rods. The two sheet plates are respectively embedded in the ends of the two round rods away from each other. The two shaft rods respectively penetrate and are rotatably installed on the top surfaces of the two sheet plates. The two sponge rollers are respectively fixed on the outer walls of the two shaft rods. During the rotation of the sponge rollers, the sponge rollers contact the surface of the ring plate. Under the action of friction, the sponge rollers roll and wipe the surface of the ring plate to prevent water vapor from adhering to the surface of the ring plate to form water droplets.

[0017] According to the above technical solution, the anti-corrosion device also includes two ring blocks, two arc rods and two U-shaped sliders. The two ring blocks are respectively fixed on the outer walls of the two round rods, the two arc rods are respectively fixed on the side of the two ring blocks away from each other, and the two U-shaped sliders are respectively fixed on the bottom surfaces of the two arc rods. During the rotation of the U-shaped sliders, the U-shaped sliders slide above the ring plate to reduce the jitter of the round rod during rotation.

[0018] According to the above technical solution, the outer walls of the two sponge rollers are in rolling contact with the outer wall of the ring plate, and the inner top ends of the two U-shaped sliders are in sliding contact with the top surface of the ring plate.

[0019] The present invention provides a vacuum food freeze-drying device, which has the following beneficial effects:

[0020] (1) The present invention comprises a square shell, a resistance heating rod, a heat conducting plate, a round shell, a servo motor, a long rod, a material tray, a thin rod, a U-shaped block and a roller in conjunction with a ring plate. The long rod drives the material tray to rotate forward, and the material tray drives the freeze-dried food to rotate forward. The heat conducting plate heats and dries the rotating material tray, and the moisture of the freeze-dried food in a vacuum state begins to evaporate. During the rotation of the freeze-dried food, the heat transferred by the heat conducting plate evenly heats the freeze-dried food, thereby preventing uneven drying of the freeze-dried food and poor drying effect of the freeze-dried food. The U-shaped block drives the roller to rotate forward, and the roller rolls in the ring plate. Under the action of the friction force of the roller, the shaking of the long rod during rotation is reduced, thereby preventing the freeze-dried food in the material tray from falling due to violent shaking of the long rod during rotation.

[0021] (2) The present invention arranges an air fan device so that the double ring frame, the straight rod, the short plate, the inclined fan plate, the short rod, the vertical plate and the arc-shaped spring piece cooperate with the chamfered block. The short plate drives the inclined fan plate to rotate forward. During the rotation of the inclined fan plate, the inclined fan plate fans the water vapor under the cabinet upward, allowing the water vapor to be quickly discharged from the valve pipe of the cabinet, thereby preventing a large amount of water vapor from accumulating under the cabinet and causing the freeze-dried food under the cabinet to be not completely dried. In addition, the vertical plate drives the arc-shaped spring piece to rotate forward, and the arc-shaped spring piece drives the chamfered block to rotate forward. During the forward rotation of the chamfered block, the chamfer of the chamfered block scrapes off foreign matter attached to the wall surface of the ring plate, thereby preventing foreign matter attached to the wall surface of the ring plate from causing the roller to roll on the wall surface of the ring plate and causing poor shaking reduction effect.

[0022] (3) The present invention sets an anti-corrosion device so that the round rod, sheet plate, shaft rod, sponge roller, ring block and arc rod cooperate with the U-shaped slider. When the sponge roller rotates, the surface of the sponge roller and the ring plate are in contact. Under the action of friction, the sponge roller rolls and wipes the surface of the ring plate, so that water vapor does not adhere to the surface of the ring plate to form water droplets, thereby preventing water vapor from adhering to the surface of the ring plate to form water droplets, which makes the ring plate easily corroded and damaged by water vapor. In addition, when the U-shaped slider rotates, the U-shaped slider slides above the ring plate, thereby reducing the jitter of the round rod during rotation, thereby preventing the round rod from shaking violently during rotation, which causes poor wiping effect of the sponge roller. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A schematic diagram of the present invention as a whole;

[0024] Figure 2 is a schematic diagram of the internal components of the present invention;

[0025] Figure 3 It is a cross-sectional schematic diagram of the cabinet of the present invention;

[0026] Figure 4 For the present invention Figure 3 A local enlarged schematic diagram of the middle A;

[0027] Figure 5 is a cross-sectional schematic diagram of the fan device of the present invention;

[0028] Figure 6 For the present invention Figure 5 A partial enlarged schematic diagram of point B in the middle;

[0029] Figure 7 is a schematic diagram of the anti-corrosion device of the present invention;

[0030] Figure 8 For the present invention Figure 7 A partial enlarged schematic diagram of point C in the middle.

[0031] In the figure: 1, base frame; 2, cabinet; 3, valve pipe; 4, bottom plate; 5, vacuum pump; 21, drying component; 211, square shell; 212, resistance heating rod; 213, heat conducting plate; 214, round shell; 215, servo motor; 216, long rod; 217, material tray; 22, anti-sway component; 221, thin rod; 222, U-shaped block; 223, roller; 224, ring plate; 6, fan device; 61, double ring frame; 62, straight rod; 63, short plate; 64, inclined fan plate; 65, short rod; 66, vertical plate; 67, arc spring piece; 68, chamfering block; 7, anti-corrosion device; 71, round rod; 72, sheet plate; 73, shaft rod; 74, sponge roller; 75, ring block; 76, arc rod; 77, U-shaped slider. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0033] See also Figure 1-Figure 8 , one embodiment of the present invention is: a vacuum food freeze-drying device, comprising a bottom frame 1, a cabinet 2 is fixedly installed on the top surface of the bottom frame 1, a valve pipe 3 is penetrated and fixedly installed on the right side of the top surface of the cabinet 2, a bottom plate 4 is fixed at the bottom end of the bottom frame 1, an air pump 5 is fixedly installed on the top surface of the bottom plate 4, an air extraction pipe on the top surface of the air extraction pump 5 penetrates and is fixedly connected to the bottom surface of the cabinet 2, an air outlet is opened in the middle of the left side of the air extraction pump 5, a cabinet door is rotatably arranged on the right side of the cabinet 2, a sealing ring is arranged on the back edge of the cabinet door of the cabinet 2, and a handle is arranged on the left side of the cabinet door of the cabinet 2;

[0034] A drying assembly 21 is provided on the left and right sides of the cabinet 2. The drying assembly 21 includes two square shells 211, which penetrate and are fixed on the left and right sides of the cabinet 2. A plurality of resistance heating rods 212 are fixedly installed on the inner walls of the two square shells 211, and two heat conducting plates 213 are fixed on the inner walls of the two square shells 211. The two heat conducting plates 213 are respectively located on the sides where the plurality of resistance heating rods 212 are close to each other. A round shell 214 is fixedly installed in the middle of the top surface of the cabinet 2, and a servo motor 215 is fixedly installed on the top inner end of the round shell 214. A long rod 216 is penetrated and rotatably installed in the middle of the top surface of the cabinet 2. The bottom end of the long rod 216 is rotatably connected to the bottom end of the cabinet 2, and the top end of the long rod 216 is fixedly connected to the bottom surface of the rotating shaft of the servo motor 215. The outer wall of the long rod 216 is fixed with a plurality of The material tray 217, the bottom surfaces of the plurality of material trays 217 are respectively provided with a plurality of air holes, the plurality of material trays 217 are respectively located in the middle of the two heat conducting plates 213, the long rod 216 is located in the middle of the cabinet 2, the outer wall edges of the plurality of material trays 217 are respectively set to a convex shape, the long rod 216 drives the material tray 217 to rotate forward, the material tray 217 drives the freeze-dried food to rotate forward, the heat conducting plate 213 heats and dries the rotating material tray 217, the moisture of the freeze-dried food in a vacuum state begins to evaporate, the evaporated water vapor of the freeze-dried food enters the valve tube 3, the valve tube 3 discharges the water vapor, so that during the rotation of the freeze-dried food, the heat transferred by the heat conducting plate 213 heats the freeze-dried food evenly, and avoids the freeze-dried food being unevenly dried when the drying device dries the refrigerated freeze-dried food, resulting in poor drying effect of the freeze-dried food;

[0035] An anti-sway component 22 is provided at the bottom of the outer wall of the long rod 216, and the anti-sway component 22 includes a thin rod 221, which passes through and is fixed to the bottom of the outer wall of the long rod 216. U-shaped blocks 222 are fixed at both ends of the thin rod 221, and two rollers 223 are rotatably installed on the inner walls of the two U-shaped blocks 222. A ring plate 224 is fixed to the inner bottom end of the cabinet 2, and the outer walls of the two rollers 223 are in rolling contact with the inner wall of the ring plate 224. The two rollers 223 are located at the top of the inner wall of the ring plate 224, and the exhaust pipe of the valve pipe 3 is located inside the ring plate 224. The U-shaped block 222 drives the roller 223 to rotate forward, and the roller 223 rolls in the ring plate 224. Under the action of the friction force of the roller 223, the shaking of the long rod 216 during rotation is reduced, so as to avoid the freeze-dried food in the material tray 217 from falling due to the violent shaking of the long rod 216 during the drying of the refrigerated freeze-dried food.

[0036] Since the freeze-dried food will be dried unevenly during the vacuum drying and dehydration process, when in use, the bottom frame 1 supports the cabinet 2, the operator rotates to open the cabinet door of the cabinet 2, the refrigerated freeze-dried food is placed on the material tray 217, the cabinet door of the cabinet 2 is closed, the bottom frame 1 supports the bottom plate 4, the operator starts the vacuum pump 5 on the bottom plate 4, the vacuum pipe of the vacuum pump 5 extracts the gas in the cabinet 2, the vacuum pump 5 discharges the sucked gas from the air outlet, so that the freeze-dried food in the cabinet 2 is in a vacuum state, at this time, the operator starts the resistance heating rod 212 in the square shell 211, the resistance heating rod 212 starts to heat up, the resistance heating rod 212 transfers heat to the heat conducting plate 213, the heat conducting plate 213 transfers heat to the cabinet 2, the operator rotates to open the valve pipe 3 of the cabinet 2 At the same time, the operator starts the servo motor 215 in the round shell 214, the rotating shaft of the servo motor 215 starts to rotate forward, the rotating shaft of the servo motor 215 drives the long rod 216 to rotate forward, the long rod 216 drives the material tray 217 to rotate forward, the material tray 217 drives the freeze-dried food to rotate forward, the heat conducting plate 213 heats and dries the rotating material tray 217, the moisture of the freeze-dried food in a vacuum state begins to evaporate, the evaporated water vapor of the freeze-dried food enters the valve pipe 3, the valve pipe 3 discharges the water vapor, so that during the rotation of the freeze-dried food, the heat transferred by the heat conducting plate 213 heats the freeze-dried food evenly, preventing the refrigerated freeze-dried food from being unevenly dried when the equipment is in use, thereby avoiding the problem of poor drying effect of the freeze-dried food caused by uneven drying of the freeze-dried food when the drying device is drying the refrigerated freeze-dried food.

[0037] When the rotating shaft of the servo motor 215 drives the long rod 216 to rotate forward, the long rod 216 drives the thin rod 221 to rotate forward, the thin rod 221 drives the U-shaped block 222 to rotate forward, the U-shaped block 222 drives the roller 223 to rotate forward, and the roller 223 rolls in the ring plate 224. Under the action of the friction force of the roller 223, the shaking of the long rod 216 during rotation is reduced, and the long rod 216 is prevented from shaking violently when the equipment is in use, thereby avoiding the freeze-dried food in the tray 217 from falling due to the long rod 216 shaking violently when the drying device is drying the refrigerated freeze-dried food.

[0038] See also Figure 1-Figure 8On the basis of the above embodiment, another embodiment of the present invention further includes a fan device 6 and an anti-corrosion device 7, wherein the fan device 6 is arranged on both sides of the outer wall of the thin rod 221, and the fan device 6 includes two double ring frames 61, two straight rods 62, four short plates 63 and two inclined fan plates 64, the two double ring frames 61 are fixed on both sides of the outer wall of the thin rod 221, the two straight rods 62 are respectively fixed on the top surfaces of the two double ring frames 61, and the four short plates 63 are respectively fixed on the two straight rods 64 in pairs. 2, two inclined fan plates 64 are respectively fixed on the sides of the four short plates 63 close to each other, the two straight rods 62 are located above the thin rod 221, and the short plates 63 drive the inclined fan plates 64 to rotate forward. During the rotation of the inclined fan plates 64, the inclined fan plates 64 fan the water vapor under the cabinet 2 upward, allowing the water vapor to be quickly discharged from the valve pipe 3 of the cabinet 2, thereby preventing a large amount of water vapor from accumulating under the cabinet 2 when the drying device is drying the refrigerated freeze-dried food, resulting in incomplete drying of the freeze-dried food under the cabinet 2.

[0039] The fan device 6 also includes two short rods 65, two vertical plates 66, two arc-shaped spring pieces 67 and two chamfered blocks 68. The two short rods 65 respectively penetrate and are fixed on the outer walls of the two straight rods 62. The two vertical plates 66 are respectively fixed at one end of the two short rods 65 away from each other. The two arc-shaped spring pieces 67 are respectively fixed at one side of the two vertical plates 66 away from the two short rods 65. The two chamfered blocks 68 are respectively fixed at one end of the two arc-shaped spring pieces 67 away from the two vertical plates 66. The chamfers of the two chamfered blocks 68 are in sliding contact with the inner wall of the ring plate 224. The vertical plates 66 drive the arc-shaped spring pieces 67 to rotate forward, and the arc-shaped spring pieces 67 drive the chamfered blocks 68 to rotate forward. During the forward rotation of the chamfered blocks 68, the chamfers of the chamfered blocks 68 scrape off foreign matter attached to the wall surface of the ring plate 224, so as to avoid the poor shaking reduction effect of the roller 223 rolling on the wall surface of the ring plate 224 when the drying device is drying the refrigerated freeze-dried food.

[0040] An anti-corrosion device 7 is provided on the side of the outer wall of the fan device 6 away from each other. The anti-corrosion device 7 includes two round rods 71, two sheet plates 72, two shaft rods 73 and two sponge rollers 74. The two round rods 71 ​​are respectively fixed to the top of the side of the two vertical plates 66 away from the two short rods 65, the two sheet plates 72 are respectively embedded in the ends of the two round rods 71 ​​away from each other, the two shaft rods 73 respectively penetrate and are rotatably installed on the top surfaces of the two sheet plates 72, and the two sponge rollers 74 are respectively fixed on the outer walls of the two shaft rods 73. The outer walls of the two sponge rollers 74 are in rolling contact with the outer wall of the ring plate 224. During the rotation of the sponge rollers 74, the surfaces of the sponge rollers 74 and the ring plate 224 are in contact. Under the action of friction, the sponge rollers 74 roll and wipe the surface of the ring plate 224, so that water vapor will not adhere to the surface of the ring plate 224 to form water droplets, so as to avoid the water vapor adhering to the surface of the ring plate 224 to form water droplets when the drying device is drying the refrigerated freeze-dried food, causing the ring plate 224 to be easily damaged by water vapor corrosion.

[0041] The anti-corrosion device 7 also includes two ring blocks 75, two arc rods 76 and two U-shaped sliders 77. The two ring blocks 75 are respectively fixed on the outer walls of the two round rods 71, and the two arc rods 76 are respectively fixed on the side of the two ring blocks 75 away from each other. The two U-shaped sliders 77 are respectively fixed on the bottom surfaces of the two arc rods 76. The inner top ends of the two U-shaped sliders 77 are in sliding contact with the top surface of the ring plate 224. During the rotation of the U-shaped sliders 77, the U-shaped sliders 77 slide above the ring plate 224 to reduce the jitter of the round rod 71 during rotation, so as to avoid the round rod 71 from vigorous shaking during rotation when the drying device is drying the refrigerated freeze-dried food, resulting in poor wiping effect of the sponge roller 74.

[0042] While the long rod 216 drives the thin rod 221 to rotate forward, the thin rod 221 drives the double ring frame 61 to rotate forward, the double ring frame 61 drives the straight rod 62 to rotate forward, the straight rod 62 drives the short plate 63 to rotate forward, and the short plate 63 drives the inclined fan plate 64 to rotate forward. During the rotation of the inclined fan plate 64, the inclined fan plate 64 fans the water vapor under the cabinet 2 upward, allowing the water vapor to be quickly discharged from the valve pipe 3 of the cabinet 2, preventing a large amount of water vapor from accumulating under the cabinet 2 when the equipment is in use, thereby avoiding the problem of a large amount of water vapor accumulating under the cabinet 2 when the drying device is drying the refrigerated freeze-dried food, resulting in incomplete drying of the freeze-dried food under the cabinet 2.

[0043] While the double ring frame 61 drives the straight rod 62 to rotate forward, the straight rod 62 drives the short rod 65 to rotate forward, the short rod 65 drives the vertical plate 66 to rotate forward, the vertical plate 66 drives the arc spring piece 67 to rotate forward, and the arc spring piece 67 drives the chamfering block 68 to rotate forward. During the process of the chamfering block 68 rotating forward, the chamfer of the chamfering block 68 scrapes off foreign matter attached to the wall surface of the ring plate 224 to prevent foreign matter from being attached to the wall surface of the ring plate 224 when the equipment is in use, thereby avoiding the problem of poor shaking reduction effect of the roller 223 rolling on the wall surface of the ring plate 224 due to foreign matter attached to the wall surface of the ring plate 224 when the drying device is drying refrigerated freeze-dried food.

[0044] While the short rod 65 drives the vertical plate 66 to rotate forward, the vertical plate 66 drives the round rod 71 to rotate forward, the round rod 71 drives the sheet plate 72 to rotate forward, the sheet plate 72 drives the shaft rod 73 to rotate forward, and the shaft rod 73 drives the sponge roller 74 to rotate forward. During the rotation of the sponge roller 74, the surface of the sponge roller 74 and the ring plate 224 are in contact. Under the action of friction, the sponge roller 74 rolls and wipes the surface of the ring plate 224, so that water vapor does not adhere to the surface of the ring plate 224 to form water droplets, thereby preventing water vapor from adhering to the surface of the ring plate 224 to form water droplets when the equipment is in use, thereby avoiding the problem that water vapor adheres to the surface of the ring plate 224 to form water droplets when the drying device is drying refrigerated freeze-dried food, causing the ring plate 224 to be easily corroded and damaged by water vapor.

[0045] When the vertical plate 66 drives the round rod 71 to rotate forward, the round rod 71 drives the ring block 75 to rotate forward, the ring block 75 drives the arc rod 76 to rotate forward, and the arc rod 76 drives the U-shaped slider 77 to rotate forward. During the rotation of the U-shaped slider 77, the U-shaped slider 77 slides above the ring plate 224, thereby reducing the jitter of the round rod 71 during rotation and preventing the round rod 71 from shaking violently during rotation when the equipment is in use, thereby avoiding the problem of poor wiping effect of the sponge roller 74 caused by the round rod 71 shaking violently during rotation of the drying device when drying refrigerated freeze-dried food.

[0046] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A vacuum food freeze-drying device, comprising a base frame (1), a cabinet (2) being fixedly mounted on the top surface of the base frame (1), characterized in that: A valve tube (3) is passed through and fixedly installed on the right side of the top surface of the cabinet (2); a bottom plate (4) is fixedly installed at the bottom end of the bottom frame (1); an air pump (5) is fixedly installed on the top surface of the bottom plate (4); an air extraction pipe on the top surface of the air extraction pump (5) passes through and is fixedly connected to the bottom surface of the cabinet (2); an air outlet is provided in the middle of the left side of the air extraction pump (5); and drying components (21) are provided on the left and right sides of the cabinet (2); The drying component (21) comprises two square shells (211), the two square shells (211) penetrate and are fixed on the left and right sides of the cabinet (2), the inner walls of the two square shells (211) are respectively fixedly mounted with a plurality of resistance heating rods (212), the inner walls of the two square shells (211) are respectively fixedly mounted with two heat conducting plates (213), the two heat conducting plates (213) are respectively located on the side where the plurality of resistance heating rods (212) are close to each other, a round shell (214) is fixedly mounted in the middle of the top surface of the cabinet (2), and a servo motor is fixedly mounted on the top end of the round shell (214) (215), a long rod (216) is passed through the middle of the top surface of the cabinet (2) and is rotatably installed, the bottom end of the long rod (216) is rotatably connected to the bottom end of the cabinet (2), the top end of the long rod (216) is fixedly connected to the bottom surface of the rotating shaft of the servo motor (215), a plurality of material trays (217) are fixed to the outer wall of the long rod (216), a plurality of air holes are respectively opened on the bottom surfaces of the plurality of material trays (217), and the plurality of material trays (217) are respectively located in the middle of the two heat conducting plates (213), and an anti-sway component (22) is arranged at the bottom of the outer wall of the long rod (216); The anti-sway component (22) comprises a thin rod (221), the thin rod (221) passes through and is fixed to the bottom of the outer wall of the long rod (216), U-shaped blocks (222) are fixed at both ends of the thin rod (221), two rollers (223) are rotatably mounted on the inner walls of the two U-shaped blocks (222), a ring plate (224) is fixed to the inner bottom end of the cabinet (2), and the outer walls of the two rollers (223) are in rolling contact with the inner wall of the ring plate (224); Air fan devices (6) are arranged on both sides of the outer wall of the thin rod (221), and an anti-corrosion device (7) is arranged on the side of the outer wall of the air fan device (6) away from each other.

2. A vacuum food freeze-drying device according to claim 1, characterized in that: The cabinet body (2) is provided with a cabinet door rotatably on the right side, a sealing ring is provided on the back edge of the cabinet door of the cabinet body (2), and a handle is provided on the left side of the front side of the cabinet door of the cabinet body (2).

3. A vacuum food freeze-drying device according to claim 2, characterized in that: The long rod (216) is located in the middle of the cabinet (2), and the outer wall edges of the plurality of material trays (217) are respectively configured to be convex.

4. A vacuum food freeze-drying device according to claim 3, characterized in that: The two rollers (223) are located at the top end of the inner wall of the ring plate (224), and the air extraction pipe of the valve tube (3) is located inside the ring plate (224).

5. A vacuum food freeze-drying device according to claim 4, characterized in that: The fan device (6) comprises two double ring frames (61), two straight rods (62), four short plates (63) and two inclined fan plates (64), the two double ring frames (61) are fixed on both sides of the outer wall of the thin rod (221), the two straight rods (62) are respectively fixed on the top surfaces of the two double ring frames (61), the four short plates (63) are respectively fixed on the two ends of the two straight rods (62) in groups of two, and the two inclined fan plates (64) are respectively fixed on the sides of the four short plates (63) close to each other.

6. A vacuum food freeze-drying device according to claim 5, characterized in that: The fan device (6) further comprises two short rods (65), two vertical plates (66), two arc-shaped spring sheets (67) and two chamfered blocks (68); the two short rods (65) respectively penetrate and are fixed on the outer walls of the two straight rods (62); the two vertical plates (66) are respectively fixed on one end of the two short rods (65) away from each other; the two arc-shaped spring sheets (67) are respectively fixed on one side of the two vertical plates (66) away from the two short rods (65); and the two chamfered blocks (68) are respectively fixed on one end of the two arc-shaped spring sheets (67) away from the two vertical plates (66).

7. A vacuum food freeze-drying device according to claim 6, characterized in that: The two straight rods (62) are located above the thin rod (221), and the chamfers of the two chamfered blocks (68) are in sliding contact with the inner wall of the ring plate (224).

8. A vacuum food freeze-drying device according to claim 7, characterized in that: The anti-corrosion device (7) comprises two round rods (71), two plates (72), two shaft rods (73) and two sponge rollers (74). The two round rods (71) are respectively fixed to the top of one side of the two vertical plates (66) away from the two short rods (65). The two plates (72) are respectively embedded in one end of the two round rods (71) away from each other. The two shaft rods (73) respectively penetrate and are rotatably mounted on the top surfaces of the two plates (72). The two sponge rollers (74) are respectively fixed to the outer walls of the two shaft rods (73).

9. A vacuum food freeze-drying device according to claim 8, characterized in that: The anti-corrosion device (7) further comprises two ring blocks (75), two arc rods (76) and two U-shaped sliders (77); the two ring blocks (75) are respectively fixed on the outer walls of the two round rods (71); the two arc rods (76) are respectively fixed on the sides of the two ring blocks (75) away from each other; and the two U-shaped sliders (77) are respectively fixed on the bottom surfaces of the two arc rods (76).

10. A vacuum food freeze-drying device according to claim 9, characterized in that: The outer walls of the two sponge rollers (74) are in rolling contact with the outer wall of the ring plate (224), and the inner top ends of the two U-shaped sliding blocks (77) are in sliding contact with the top surface of the ring plate (224).

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