Integrated freeze drying device for chicken processing

By introducing structures such as track grooves, barrier components, and servo motors into the freeze-drying equipment for chicken processing, the problem of uneven freeze-drying of chicken has been solved, achieving rapid and uniform drying results, simplifying operation, and improving product quality and safety.

CN224050905UActive Publication Date: 2026-03-27SHANXI PINGYAOXIAN BAOJUYUAN MEAT PRODUTCTS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-17
Publication Date
2026-03-27

AI Technical Summary

Technical Problem

In existing integrated freeze-drying devices for chicken processing, the chicken meat does not come into contact with the cold air inside the freeze-drying equipment evenly, resulting in uneven drying effect, which affects the taste and shelf life of the product. At the same time, the operation is complicated and the chicken meat is easily damaged.

Method used

The design incorporates a track groove, barrier components, a first rotating shaft, gears, a servo motor, and a pusher assembly to achieve uniform freeze-drying of chicken. A suitable drying environment is created through a vacuum pump and a refrigerator, and the detachable frame structure facilitates operation.

Benefits of technology

This technology enables rapid and uniform drying of chicken, improving product quality and shelf life, simplifying the process, and reducing the risk of chicken damage.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of chicken processing equipment, and discloses an integrated freeze drying device for chicken processing, which comprises a freeze drying box. According to the integrated freeze-drying device for chicken processing, through the arrangement of the rail groove and the blocking assembly, the first frame can freely slide on the inner wall of the rail groove, so that a worker can conveniently take out and place the first frame, and then the blocking assembly can block the first frame, so that the freeze-drying stability of chicken is improved; under the action of a first rotating shaft, a first gear, a servo motor, a second gear, a pushing assembly and a first frame, a second frame and a second grid breathable plate can be driven to fix chicken on a first breathable grid plate under the pushing of the pushing assembly, and then the first gear, the servo motor and the second gear can drive a support plate to rotate; and the chicken can be in full contact with cold air in the freeze drying process, so that the rapid and uniform drying effect is achieved.
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Description

TECHNICAL FIELD

[0001] The application relates to the technical field of chicken processing equipment, in particular to an integrated freeze-drying device for chicken processing. BACKGROUND

[0002] The freeze-drying technology is to freeze the water-containing material below the freezing point, so that the water changes into solid ice, and then the ice is directly converted into steam under high vacuum to remove it, so that the material is dried. Since the vacuum freeze-drying technology is carried out in a low-temperature and low-oxygen environment, most biological reactions are suspended, and there is no liquid water in the processing process. The water is directly sublimated in a solid state, so that the original structure and shape of the material are maximally protected, and finally high-quality dried products with excellent appearance and internal quality are obtained. After the chicken is processed, it often needs to be preserved by a freeze-drying device.

[0003] The existing patent (publication number: CN220931521U) discloses an integrated freeze-drying device for chicken processing. The device includes a main body, a drying chamber arranged above the main body, and a working chamber arranged below the main body. A connecting seat is arranged at the rear side of the working chamber and communicates with the internal space of the working chamber.

[0004] In the above-mentioned scheme, the chicken is placed on the fixed placing rack, and then the freeze-drying device is used to freeze and dry the chicken. However, the fixed placing rack limits the full contact of the chicken with the cold air inside the freeze-drying device, resulting in uneven drying effect. Some chicken may be too dry, while the other part may still contain a lot of moisture. This not only affects the taste and quality of the product, but also may reduce the shelf life of the product. In addition, the fixed placing rack brings inconvenience to the workers during operation. The workers need to manually place the chicken on the placing rack or take it off, which not only increases the complexity of the operation, but also may cause damage or contamination of the chicken due to improper operation. Practical new type content

[0005] In view of the deficiencies of the prior art, the application provides an integrated freeze-drying device for chicken processing, which has the advantages of efficient freeze-drying of chicken and quick removal and replacement of chicken, and solves the problems raised in the background art.

[0006] To achieve the above object, the present application provides the following technical scheme: A kind of integrated freeze-drying device for chicken processing, including freeze-drying cabinet, the inner wall of the freeze-drying cabinet is rotatably connected with two symmetrical first rotation shafts, the end of two first rotation shafts close to each other is fixedly connected with support plate, the outer surface of one of first rotation shafts is fixedly connected with first gear, the inner wall of the freeze-drying cabinet is drivingly connected with second rotation shaft, the outer surface of the freeze-drying cabinet is fixedly embedded with servo motor, the output end of the servo motor is fixedly connected to one end of second rotation shaft, the outer surface of the second rotation shaft is fixedly connected with second gear, the second gear and the first gear are engaged, the outer surface of two servo motors is equipped with track groove, the inner wall of two track grooves is slidably connected with first frame, the outer surface of two servo motors is equipped with push assembly, the inner wall of the first frame is fixedly connected with first air-permeable grid, the outer surface of two servo motors is equipped with blocking assembly, the upper of the first air-permeable grid is equipped with second frame, the inner wall of the second frame is fixedly connected with second grid air-permeable plate.

[0007] Through the above scheme, by setting track groove, the effect of blocking assembly, first frame can slide freely on the inner wall of track groove, so that it is convenient for staff to take out and place, and then the blocking assembly can block the first frame, thereby improving the stability of freeze-drying of chicken, by setting the effect between first rotation shaft, first gear, servo motor, second gear, push assembly and first frame, under the push of push assembly, second frame and second grid air-permeable plate can drive first air-permeable grid to fix chicken, and then first gear, servo motor and second gear can drive support plate to rotate, so that chicken can be more fully contacted with cold air during freeze-drying, thereby realizing rapid and uniform drying effect.

[0008] Further, the size of the first gear is greater than the size of the second gear.

[0009] Through the above scheme, the rotation of the second gear driving the first gear can improve the transmission efficiency, since the number of teeth of the first gear is more than that of the second gear, the load of each tooth is relatively small, which helps to reduce wear and energy loss, thereby improving the efficiency of the entire transmission system.

[0010] Further, the push assembly includes two guide grooves opened on the outer surface of the support plate, the inner wall of the two guide grooves is slidably connected with a push plate, and the bottom surface of the push plate is fixedly connected to the outer surface of the second frame, the upper surface of the push plate is fixedly connected with four springs, one end of the four springs away from the upper surface of the push plate is fixedly connected to the outer surface of the support plate, the upper surface of the push plate is fixedly connected with a pulling rod, and the outer surface of the pulling rod is inserted into the inner wall of the support plate.

[0011] Through the above scheme, through the action of the spring, the spring can push the push plate to drive the second frame and the second grid vent plate to move downward continuously, thereby clamping and fixing the chicken meat on the upper surface of the first vent grid plate, so that the support plate always remains stable during rotation.

[0012] Further, the blocking assembly comprises a baffle and a third rotating shaft, the outer surface of the baffle is fixedly connected to the outer surface of the support plate, the outer surface of the third rotating shaft is rotatably connected to the outer surface of the support plate, one end of the third rotating shaft is fixedly connected with a blocking plate, and the outer part of the third rotating shaft is sleeved with a torsional spring.

[0013] Through the above scheme, through the action of the torsional spring, the blocking plate can be driven to rotate, and the blocking of the baffle is cooperated to make the blocking plate stably in a vertical state, thereby blocking and limiting the first frame, and ensuring the stability of the first frame inside the track groove.

[0014] Further, the outer surface of the blocking plate is provided with an opening, and the outer surface of the opening is fixedly connected with a fixed block.

[0015] Through the above scheme, through the action of the fixed block, the staff can rotate the baffle, which can further improve the practicability.

[0016] Further, the outer surface of the freeze-drying oven is provided with a glass door, the inner wall of the freeze-drying oven is fixedly connected with a water collecting hopper, and the inner wall of the freeze-drying oven is slidably connected with a water collecting box.

[0017] Through the above scheme, the condensed water can be collected and guided under the action of the water collecting hopper, so that the water droplets stably fall into the inside of the water collecting box for centralized storage. At this time, the condensed water stored in the water collecting box can be conveniently handled by the staff, and the practicability of the device is improved.

[0018] Further, the upper surface of the freeze-drying oven is fixedly connected with a refrigeration device, the output end of the refrigeration device is fixedly connected with a first communication pipe, one end of the first communication pipe away from the output end of the refrigeration device extends through the inner wall of the freeze-drying oven to the inside of the freeze-drying oven, and the outer surface of the first communication pipe is provided with a first electromagnetic valve.

[0019] Through the above scheme, through the action of the refrigeration device, the first communication pipe and the first electromagnetic valve, the first electromagnetic valve is started to open the passage of the first communication pipe, so that the condensed gas of the refrigeration device can be injected into the inside of the freeze-drying oven for frozen and dried processing of the chicken meat inside.

[0020] Further, the outer surface of the freeze-drying box is fixedly connected with a vacuum pump, the output end of the vacuum pump is fixedly connected with a second communication pipe, and the end of the second communication pipe away from the output end of the vacuum pump extends through the inner wall of the freeze-drying box to the inside of the freeze-drying box, and the outer surface of the second communication pipe is provided with a second electromagnetic valve.

[0021] Through the above scheme, through the action of the vacuum pump, the second communication pipe and the second electromagnetic valve, the second communication pipe is connected with the vacuum pump by opening the second electromagnetic valve, and then the vacuum pump can reduce the air pressure in the freeze-drying box, thereby creating a vacuum environment suitable for ice sublimation.

[0022] Compared with the prior art, the technical scheme of the present application has the following beneficial effects:

[0023] The one-piece freeze-drying device for chicken processing is characterized in that the first frame can freely slide on the inner wall of the track groove, so that the staff can easily take out the first frame, and the blocking assembly can block the first frame, thereby improving the stability of the freeze-drying of chicken. Through the action between the first shaft, the first gear, the servo motor, the second gear, the pushing assembly and the first frame, the second frame and the second grid air-permeable plate can be driven to fix the chicken on the first air-permeable grid plate under the pushing of the pushing assembly. Then, the first gear, the servo motor and the second gear can drive the support plate to rotate, so that the chicken can be more fully contacted with cold air during the freeze-drying process, thereby achieving rapid and uniform drying effect. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 It is a perspective view of the whole application;

[0025] Figure 2 It is an internal structure view of the whole application;

[0026] Figure 3 It is a separation structure view of the support plate and the first frame of the application;

[0027] Figure 4 It is a perspective view of the pushing assembly of the application;

[0028] Figure 5 It is a perspective view of the blocking assembly of the application.

[0029] In the drawings:

[0030] 1, freeze-drying box; 2, first rotating shaft; 3, first gear; 4, second rotating shaft; 5, servo motor; 6, second gear; 7, support plate; 8, track groove; 9, pushing assembly; 901, guide groove; 902, pushing plate; 903, spring; 904, pulling rod; 10, first frame; 11, first air-permeable mesh plate; 12, blocking assembly; 1201, baffle; 1202, third rotating shaft; 1203, blocking plate; 1204, torsional spring; 1205, opening; 1206, fixed block; 13, second frame; 14, second air-permeable mesh plate; 15, glass door; 16, refrigerator; 17, first communication pipe; 18, first electromagnetic valve; 19, vacuum pump; 20, second communication pipe; 21, second electromagnetic valve; 22, water collecting hopper; 23, water collecting box. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of protection of the present application.

[0032] Please refer to Figure 1 , Figure 2 and Figure 3The embodiment is a kind of integrated freeze-drying device for chicken processing, including freeze-drying box 1, the inner wall of freeze-drying box 1 is rotatably connected with two symmetrical first shafts 2, the end of two first shafts 2 close to each other is fixedly connected with support plate 7, the outer surface of one of first shafts 2 is fixedly connected with first gear 3, the inner wall of freeze-drying box 1 is drivingly connected with second shaft 4, the outer surface of freeze-drying box 1 is fixedly embedded with servo motor 5, the output end of servo motor 5 is fixedly connected to one end of second shaft 4, the outer surface of second shaft 4 is fixedly connected with second gear 6, second gear 6 and first gear 3 are engaged, the outer surface of two servo motors 5 is provided with track groove 8, the inner wall of two track grooves 8 is slidingly connected with first frame 10, the outer surface of two servo motors 5 is provided with push assembly 9, the inner wall of first frame 10 is fixedly connected with first air-permeable grid 11, by setting the action between first shaft 2, first gear 3, servo motor 5, second gear 6, push assembly 9 and first frame 10, first air-permeable grid 11 on chicken can be fixed under the push of push assembly 9, then first gear 3, servo motor 5 and second gear 6 can drive support plate 7 to rotate, so that chicken can be more fully contacted with cold air during freeze-drying process, so as to realize the effect of rapid and uniform drying, the outer surface of two servo motors 5 is provided with blocking assembly 12, by setting the action of track groove 8 and blocking assembly 12, first frame 10 can slide freely on the inner wall of track groove 8, so that it is convenient for workers to take out and place, then blocking assembly 12 can block first frame 10, so as to improve the stability of chicken freeze-drying, the upper side of first air-permeable grid 11 is provided with second frame 13, the inner wall of second frame 13 is fixedly connected with second air-permeable grid 14, the size of first gear 3 is greater than that of second gear 6, the rotation of first gear 3 driven by second gear 6 can improve transmission efficiency, since the number of teeth of first gear 3 is more than that of second gear 6, the load of each tooth is relatively small, which helps to reduce wear and energy loss, so as to improve the efficiency of the whole transmission system.

[0033] Please refer to Figure 2 、 Figure 3 and Figure 4The pushing assembly 9 comprises two guide grooves 901 formed in the outer surface of the support plate 7, the inner walls of the two guide grooves 901 are slidably connected with a pushing plate 902, the bottom surface of the pushing plate 902 is fixedly connected to the outer surface of the second frame 13, the upper surface of the pushing plate 902 is fixedly connected with four springs 903, the ends of the four springs 903 away from the upper surface of the pushing plate 902 are fixedly connected to the outer surface of the support plate 7, the upper surface of the pushing plate 902 is fixedly connected with a pulling rod 904, and the outer surface of the pulling rod 904 is inserted into the inner wall of the support plate 7. Through the effect of the springs 903, the springs 903 can push the pushing plate 902 to drive the second frame 13 and the second grid ventilation plate 14 to continuously move downwards, so that the chicken meat on the upper surface of the first ventilation grid plate 11 can be clamped and fixed, and the support plate 7 can always remain stable during rotation.

[0034] Please refer to Figure 2 , Figure 3 and Figure 5 The blocking assembly 12 comprises a baffle 1201 and a third rotating shaft 1202, the outer surface of the baffle 1201 is fixedly connected to the outer surface of the support plate 7, the outer surface of the third rotating shaft 1202 is rotatably connected to the outer surface of the support plate 7, one end of the third rotating shaft 1202 is fixedly connected with a blocking plate 1203, and the outer part of the third rotating shaft 1202 is sleeved with a torsional spring 1204. Through the effect of the torsional spring 1204, the blocking plate 1203 can be driven to rotate, and the blocking of the baffle 1201 can make the blocking plate 1203 stably in a vertical state, thereby blocking and limiting the first frame 10, ensuring the stability of the first frame 10 in the track groove 8. The outer surface of the blocking plate 1203 is provided with an opening 1205, and the outer surface of the opening 1205 is fixedly connected with a fixed block 1206. Through the effect of the fixed block 1206, the baffle 1201 can be easily rotated by the staff, and the practicability can be further improved.

[0035] Please refer to Figure 1 and Figure 2The outer surface of the freeze-drying box 1 is provided with a glass door 15, the inner wall of the freeze-drying box 1 is fixedly connected with a water collecting hopper 22, and the inner wall of the freeze-drying box 1 is slidably connected with a water collecting box 23. The water collecting hopper 22 can collect and guide the condensed water, so that the water droplets are stably dropped into the water collecting box 23 for centralized storage. At this time, the condensed water stored in the water collecting box 23 can be conveniently processed by the staff, improving the practicability of the device. The upper surface of the freeze-drying box 1 is fixedly connected with a refrigerating device 16. The output end of the refrigerating device 16 is fixedly connected with a first communication pipe 17. One end of the first communication pipe 17 away from the output end of the refrigerating device 16 extends through the inner wall of the freeze-drying box 1 to the inside of the freeze-drying box 1. The outer surface of the first communication pipe 17 is provided with a first electromagnetic valve 18. By setting the refrigerating device 16, the first communication pipe 17 and the first electromagnetic valve 18, the first electromagnetic valve 18 is started to open the channel of the first communication pipe 17, so that the condensed gas of the refrigerating device 16 can be injected into the inside of the freeze-drying box 1 to freeze-dry the chicken inside. The outer surface of the freeze-drying box 1 is fixedly connected with a vacuum pump 19. The output end of the vacuum pump 19 is fixedly connected with a second communication pipe 20. One end of the second communication pipe 20 away from the output end of the vacuum pump 19 extends through the inner wall of the freeze-drying box 1 to the inside of the freeze-drying box 1. The outer surface of the second communication pipe 20 is provided with a second electromagnetic valve 21. By setting the vacuum pump 19, the second communication pipe 20 and the second electromagnetic valve 21, the second electromagnetic valve 21 is opened to connect the second communication pipe 20 with the vacuum pump 19. Then the vacuum pump 19 can reduce the air pressure in the freeze-drying box 1, thereby creating a vacuum environment suitable for ice sublimation.

[0036] The one-piece freeze-drying device for chicken processing in the embodiment can be conveniently taken out by the staff through the effects of the track groove 8 and the blocking assembly 12. The blocking assembly 12 can block the first frame 10, thereby improving the stability of freeze-drying of the chicken. The chicken on the first air-permeable grid plate 11 can be fixed by the second frame 13 and the second air-permeable grid plate 14 under the pushing of the pushing assembly 9. Then the first gear 3, the servo motor 5 and the second gear 6 can drive the support plate 7 to rotate, so that the chicken can be more fully contacted with cold air during freeze-drying, thereby realizing rapid and uniform drying effect.

[0037] The working principle of the above embodiment is that when the device is used, first, the chicken is placed on the surface of the first frame 10 and the first breathable mesh plate 11, then the first frame 10 is inserted into the inner wall of the track groove 8, at this time, the blocking plate 1203 can be driven to rotate under the action of the torsional spring 1204, and the blocking of the blocking plate 1203 is stable in the vertical state, thereby blocking and limiting the first frame 10, ensuring the stability of the first frame 10 inside the track groove 8, then the second frame 13 and the second mesh breathable plate 14 can be continuously moved downward under the action of the spring 903, thereby clamping and fixing the chicken on the upper surface of the first breathable mesh plate 11, opening the second electromagnetic valve 21 can connect the second communication pipe 20 with the vacuum pump 19, then the vacuum pump 19 can reduce the air pressure in the freeze-drying box 1, thereby creating a vacuum environment suitable for ice sublimation, starting the first electromagnetic valve 18 to open the channel of the first communication pipe 17, so that the condensed gas of the refrigerator 16 can be injected into the inside of the freeze-drying box 1, and the chicken inside is subjected to freeze-drying treatment, starting the servo motor 5 can drive the second shaft 4 and the second gear 6 to rotate, then the second gear 6 can drive the first gear 3 to rotate, thereby driving the support plate 7 to rotate so that the chicken can be more fully contacted with cold air during the freeze-drying process, thereby realizing a rapid and uniform drying effect, finally, if the limiting needs to be released, only the pull rod 904 needs to be pulled to drive the push plate 902 and the second frame 13 and the second mesh breathable plate 14 to release the extrusion of the chicken, then the fixed block 1206 is rotated to drive the baffle 1201 to flip, thereby releasing the blocking of the first frame 10, at this time, only the first frame 10 needs to be manually pulled out to pull out the frozen chicken, which is simple and convenient and can be quickly taken out.

[0038] It should be noted that in this document, the terms such as first and second are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or device. Without more limitations, the element defined by the statement "includes a" does not exclude the presence of another identical element in the process, method, article or device including the element.

[0039] While embodiments of the application have been shown and described, it is to be understood that the embodiments described are merely exemplary and that changes can be made in detail without departing from the principles and spirit of the application. The scope of the application is therefore defined by the appended claims and their equivalents.

Claims

1. A one-piece freeze-drying device for chicken processing, comprising a freeze-drying chamber (1), characterized in that: The inner wall of the freeze-drying box (1) is rotationally connected with two symmetrical first rotation shafts (2), the ends of the two first rotation shafts (2) close to each other are fixedly connected with support plates (7), the outer surface of one of the first rotation shafts (2) is fixedly connected with a first gear (3), the inner wall of the freeze-drying box (1) is drivingly connected with a second rotation shaft (4), the outer surface of the freeze-drying box (1) is fixedly embedded with a servo motor (5), the output end of the servo motor (5) is fixedly connected to one end of the second rotation shaft (4), the outer surface of the second rotation shaft (4) is fixedly connected with a second gear (6), the second gear (6) is engaged with the first gear (3), the outer surfaces of the two servo motors (5) are both provided with track grooves (8), the inner walls of the two track grooves (8) are slidingly connected with first frames (10), the outer surfaces of the two servo motors (5) are both provided with pushing assemblies (9), the inner wall of the first frame (10) is fixedly connected with a first air-permeable mesh plate (11), the outer surfaces of the two servo motors (5) are both provided with blocking assemblies (12), the upper side of the first air-permeable mesh plate (11) is provided with a second frame (13), and the inner wall of the second frame (13) is fixedly connected with a second air-permeable mesh plate (14).

2. The integrated freeze-drying device for chicken processing according to claim 1, characterized in that: The size of the first gear (3) is greater than that of the second gear (6).

3. The integrated freeze-drying device for chicken processing according to claim 1, characterized in that: The pushing assembly (9) comprises two guide grooves (901) formed in the outer surfaces of the support plates (7), the inner walls of the two guide grooves (901) are slidingly connected with a pushing plate (902), the bottom surface of the pushing plate (902) is fixedly connected to the outer surface of the second frame (13), the upper surface of the pushing plate (902) is fixedly connected with four springs (903), one ends of the four springs (903) away from the upper surface of the pushing plate (902) are fixedly connected to the outer surfaces of the support plates (7), the upper surface of the pushing plate (902) is fixedly connected with a pulling rod (904), and the outer surface of the pulling rod (904) is inserted into the inner wall of the support plate (7).

4. The integrated freeze-drying device for chicken processing according to claim 1, characterized in that: The blocking assembly (12) comprises a baffle (1201) and a third rotation shaft (1202), the outer surface of the baffle (1201) is fixedly connected to the outer surface of the support plate (7), the outer surface of the third rotation shaft (1202) is rotationally connected to the outer surface of the support plate (7), one end of the third rotation shaft (1202) is fixedly connected with a blocking plate (1203), and the outer part of the third rotation shaft (1202) is provided with a torsional spring (1204).

5. The integrated freeze-drying device for chicken processing according to claim 4, characterized in that: The outer surface of the blocking plate (1203) is provided with an opening (1205), and the outer surface of the opening (1205) is fixedly connected with a fixed block (1206).

6. The integrated freeze-drying device for chicken processing according to claim 1, characterized in that: The outer surface of the freeze-drying box (1) is provided with a glass door (15), the inner wall of the freeze-drying box (1) is fixedly connected with a water collecting hopper (22), and the inner wall of the freeze-drying box (1) is slidingly connected with a water collecting box (23).

7. The integrated freeze-drying device for chicken processing according to claim 1, characterized in that: The upper surface of the freeze-drying box (1) is fixedly connected with a refrigerator (16), the output end of the refrigerator (16) is fixedly connected with a first communicating pipe (17), and the end, away from the output end of the refrigerator (16), of the first communicating pipe (17) extends to the inside of the freeze-drying box (1) through the inner wall of the freeze-drying box (1), and the outer surface of the first communicating pipe (17) is installed with a first electromagnetic valve (18).

8. The integrated freeze-drying device for chicken processing according to claim 1, characterized in that: The outer surface of the freeze-drying box (1) is fixedly connected with a vacuum pump (19), the output end of the vacuum pump (19) is fixedly connected with a second communicating pipe (20), and the end, away from the output end of the vacuum pump (19), of the second communicating pipe (20) extends to the inside of the freeze-drying box (1) through the inner wall of the freeze-drying box (1), and the outer surface of the second communicating pipe (20) is installed with a second electromagnetic valve (21).

Citation Information

Patent Citations

  • Integrated freeze drying device for chicken processing

    CN220931521U