Crayfish precooler
By using a mesh frame structure in the crayfish precooling machine, the problem of uneven moisture loss during the crayfish cooling process is solved, achieving uniform moisture loss from the inside of the crayfish, reducing food damage and saving energy.
Patent Information
- Application Number
- CN202520283006.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-21
- Publication Date
- 2026-01-06
- Estimated Expiration
- 2035-02-21
AI Technical Summary
In existing crayfish pre-cooling machines, the moisture at the bottom of the crayfish does not easily dissipate during the cooling process, resulting in uneven cooling temperatures and causing food damage.
The design employs a mesh frame structure, with mesh one and mesh two designed to allow the bottom of the crayfish to come into contact with the air. The refrigeration system then evenly distributes moisture, reducing food damage.
This method achieves even moisture dissipation from the inside of the crayfish, reduces food damage, improves cooling efficiency, and saves energy.
Smart Images

Figure CN223769116U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of crayfish processing technology, specifically to a crayfish precooling machine. Background Technology
[0002] Crayfish (scientific name Procambarus clarkii) is a crustacean. Crayfish is a popular food in people's daily lives. In the crayfish processing, quick-freezing is an extremely important step. A pre-cooling machine is a device used to quickly cool equipment and ingredients. It mainly achieves rapid and efficient cooling through vacuum cooling technology. In the quick-freezing of crayfish, pre-cooling machines are usually used. With the continuous development of crayfish quick-freezing technology, various quick-freezing machines have emerged, such as a crayfish pre-cooling machine.
[0003] Currently, crayfish pre-cooling machines on the market mainly focus on improving refrigeration technology. Existing crayfish pre-cooling machines generally consist of a cabinet, refrigeration system, control system, placement rack, and placement tray. Crayfish are placed in the placement tray and then placed in the placement rack for quick freezing. However, the bottom of the placement tray is in contact with the crayfish, making it difficult for moisture at the bottom of the crayfish to dissipate. Existing pre-cooling machines generally need to meet the requirement that the cooling substance is rich in water molecules and that the water molecules can easily evaporate and escape from the core to the surface. This can cause small differences in cooling temperature at the bottom of the crayfish, damaging the food. Therefore, a crayfish pre-cooling machine that can use a net frame to hold the crayfish is proposed, which is conducive to the even dissipation of moisture inside the crayfish and reduces food damage. Utility Model Content
[0004] To address the shortcomings of existing technologies, this utility model provides a crayfish pre-cooling machine that can use a net frame to hold the crayfish, which is beneficial for the even dissipation of internal moisture and reduces food damage. It solves the problem that existing pre-cooling machines generally require the cooling substance to be rich in water molecules, and the water molecules are easy to evaporate and escape from the core to the surface, which will cause a small difference in cooling temperature at the bottom of the crayfish and damage the food.
[0005] To achieve the goal of using a net to hold crayfish, which facilitates the even loss of internal moisture and reduces food damage, this utility model provides the following technical solution: a crayfish pre-cooling machine, including a pre-cooling cabinet, wherein a refrigeration system is installed inside the pre-cooling cabinet, a control system is installed outside the pre-cooling cabinet, and a placement mechanism is installed inside the pre-cooling cabinet;
[0006] The placement mechanism includes a support frame, fixing blocks, a placement frame, a placement plate, a slot, a first net, a second net, and a guide rail. The pre-cooling cabinet has a support frame inside, four fixing blocks inside the support frame, a placement frame outside the four fixing blocks, a placement plate inside the placement frame, a slot inside the placement frame, a first net inside the placement plate, a second net inside the placement frame, and a guide rail inside the pre-cooling cabinet.
[0007] Furthermore, two permanent magnets are fixedly installed at the bottom of the support frame, and both permanent magnets are located at the top of the guide rail.
[0008] Furthermore, the pre-cooling cabinet has a hinged door at the front, a transparent window on the outside of the door, and a handle on the outside of the door.
[0009] Furthermore, the exterior of the pre-cooling cabinet is equipped with an electromagnetic lock, and the interior of the movable door is equipped with a magnetic component compatible with the electromagnetic lock.
[0010] Furthermore, the number of fixed blocks is several, with four fixed blocks forming a group, and the several fixed blocks divided into eight groups.
[0011] Furthermore, the bottom of the support frame is provided with a sliding groove that is compatible with the guide rail.
[0012] Compared with the prior art, the technical solution of this application has the following beneficial effects:
[0013] This crayfish pre-cooling machine, through its placement mechanism, allows for the following steps: After cleaning the support frame, it slides into the pre-cooling cabinet via guide rails. A portion of crayfish is placed on the second net inside the placement frame. The placement plate is then inserted into the slot of the placement frame, and a second portion of crayfish is placed on top of the first net. This ensures the bottom of the crayfish is in contact with the air, facilitating moisture dissipation. The placement frame is then secured to four fixed blocks, the movable door is closed, and the refrigeration system is activated via the control system, allowing the crayfish to evenly dissipate moisture. This placement mechanism, using a net to hold the crayfish, promotes even moisture loss from the crayfish's interior, reducing food damage. Attached Figure Description
[0014] Figure 1 This is a three-dimensional view of the structure of this utility model;
[0015] Figure 2 This is a front sectional view of the structure of this utility model;
[0016] Figure 3 This utility model Figure 2 Enlarged view of point A in the middle;
[0017] Figure 4 This is a top sectional view of the placement rack of this utility model.
[0018] In the diagram: 1. Pre-cooling cabinet; 2. Refrigeration system; 3. Control system; 4. Placement mechanism; 401. Support frame; 402. Fixing block; 403. Placement frame; 404. Placement plate; 405. Card slot; 406. Netting 1; 407. Netting 2; 408. Guide rail; 5. Permanent magnet; 6. Sliding door; 7. Transparent window; 8. Electromagnetic lock. Detailed Implementation
[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0020] Please see Figure 1-4 The crayfish precooling machine in this embodiment includes a precooling cabinet 1, a refrigeration system 2 is provided inside the precooling cabinet 1, a control system 3 is provided outside the precooling cabinet 1, and a placement mechanism 4 is provided inside the precooling cabinet 1.
[0021] The placement mechanism 4 includes a support frame 401, fixing blocks 402, placement frame 403, placement plate 404, slot 405, first mesh cover 406, second mesh cover 407, and guide rail 408. The pre-cooling cabinet 1 is equipped with a support frame 401 inside, four fixing blocks 402 inside the support frame 401, a placement frame 403 outside the four fixing blocks 402, a placement plate 404 inside the placement frame 403, a slot 405 inside the placement frame 403, a first mesh cover 406 inside the placement plate 404, a second mesh cover 407 inside the placement frame 403, and a guide rail 408 inside the pre-cooling cabinet 1.
[0022] In the implementation of the case, a permanent magnet 5 is fixedly installed at the bottom of the support frame 401. There are two permanent magnets 5, and both permanent magnets 5 are located at the top of the guide rail 408. By setting two permanent magnets 5, after the support frame 401 slides into the pre-cooling cabinet 1, the two permanent magnets 5 can attract the guide rail 408, so that the support frame 401 is not easy to shake.
[0023] In the case implementation, the front of the pre-cooling cabinet 1 is hinged with a movable door 6, the outside of the movable door 6 is provided with a transparent window 7, the outside of the movable door 6 is provided with a handle, the outside of the pre-cooling cabinet 1 is provided with an electromagnetic lock 8, and the inside of the movable door 6 is provided with a magnetic component that is compatible with the electromagnetic lock 8. By setting the movable door 6 with the transparent window 7, the changes of the crayfish in the pre-cooling cabinet 1 can be directly observed.
[0024] In the implementation of the case, there are several fixed blocks 402. Four fixed blocks 402 are grouped together, and several fixed blocks 402 are divided into eight groups. By setting eight groups of fixed blocks 402, more crayfish can be placed. Since the precooling machine has high energy consumption, it is beneficial to save energy by putting in more crayfish at once.
[0025] In the implementation of this case, the control system 3 is electrically connected to all electronic components in this patent via wires, thereby controlling all electronic components in this patent by operating the control system 3.
[0026] When implementing this procedure, please follow these steps:
[0027] 1) When it is necessary to pre-cool the crayfish, clean the support frame 401 and slide it into the pre-cooling cabinet 1 through the guide rail 408.
[0028] 2) Then place a serving of crayfish on the inner net 407 of the placement frame 403;
[0029] 3) Insert the placement plate 404 into the slot 405 of the placement frame 403, and place the second batch of crayfish on top of the net 406, so that the bottom of the placed crayfish is in contact with the air and can easily dissipate moisture;
[0030] 4) Finally, place the placement frame 403 onto the four fixed blocks 402, then close the movable door 6, and turn on the refrigeration system 2 through the control system 3 so that the crayfish can evenly release moisture.
[0031] In summary, this crayfish pre-cooling machine, through the placement mechanism 4, allows for the following steps when crayfish need to be pre-cooled: the support frame 401 is cleaned and then slid into the pre-cooling cabinet 1 via the guide rail 408. A portion of crayfish is then placed on the second net 407 inside the placement frame 403. The placement plate 404 is then inserted into the slot 405 of the placement frame 403, and a second portion of crayfish is placed on top of the first net 406. This ensures that the bottom of the placed crayfish is in contact with the air, facilitating moisture dissipation. The placement frame 403 is then secured to the four fixing blocks 402, and the movable door 6 is closed. The refrigeration system 2 is then activated via the control system 3, allowing the crayfish to evenly dissipate moisture. This placement mechanism 4, by using a net to hold the crayfish, promotes even moisture loss from the crayfish's interior, reducing food damage.
[0032] It should be noted that, in this document, relational 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. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A crayfish pre-cooling machine comprising a pre-cooling cabinet (1), characterized in that: The inside of the pre-cooling cabinet (1) is provided with a refrigeration system (2), the outside of the pre-cooling cabinet (1) is provided with a control system (3), and the inside of the pre-cooling cabinet (1) is provided with a placing mechanism (4); The placing mechanism (4) comprises a support frame (401), a fixed block (402), a placing frame (403), a placing plate (404), a clamping groove (405), a net (406), a net (407) and a guide rail (408), the inside of the pre-cooling cabinet (1) is provided with a support frame (401), the inside of the support frame (401) is provided with four fixed blocks (402), the outside of the four fixed blocks (402) is provided with a placing frame (403), the inside of the placing frame (403) is provided with a placing plate (404), the inside of the placing frame (403) is provided with a clamping groove (405), the inside of the placing plate (404) is provided with a net (406), the inside of the placing frame (403) is provided with a net (407), and the inside of the pre-cooling cabinet (1) is provided with a guide rail (408).
2. The crawfish pre-chiller of claim 1, wherein: The bottom of the support frame (401) is fixedly provided with permanent magnets (5), the number of the permanent magnets (5) is two, and the two permanent magnets (5) are located on the top of the guide rail (408).
3. The crawfish pre-chiller of claim 1, wherein: The front of the pre-cooling cabinet (1) is hingedly connected with a movable door (6), the outside of the movable door (6) is provided with a transparent window (7), and the outside of the movable door (6) is provided with a handle.
4. The crawfish pre-chiller of claim 3, wherein: The outside of the pre-cooling cabinet (1) is provided with an electromagnetic lock (8), and the inside of the movable door (6) is provided with a magnetic force assembly matched with the electromagnetic lock (8).
5. The crawfish pre-chiller of claim 1, wherein: The number of the fixed blocks (402) is several, and the four fixed blocks (402) form a group.
6. The crawfish pre-chiller of claim 1, wherein: The bottom of the support frame (401) is provided with a sliding groove matched with the guide rail (408).