Litchi fresh-keeping pre-cooling device

By installing a retrieval component and drive mechanism inside the pre-cooling box, floating objects are automatically retrieved, solving the problem of leaves and damaged fruit floating in lychees, reducing the workload of workers, and improving the efficiency of pre-cooling treatment.

CN224415458UActive Publication Date: 2026-06-26ZHANG ZHOU HALTH VOCATIONAL COLLEGE

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHANG ZHOU HALTH VOCATIONAL COLLEGE
Filing Date
2025-06-11
Publication Date
2026-06-26

AI Technical Summary

Technical Problem

When the pre-cooling device is in use, leaves and rotten fruit mixed in with the lychees float on the water surface, increasing the workload for workers to retrieve the floating objects.

Method used

A precooling box including a retrieval component was designed. The retrieval component consists of a mounting frame and a retrieval net. The mounting frame is driven to move by a drive mechanism. Combined with the design of a flap and a spring, floating objects are automatically retrieved. The lychees are transported and the ice water is discharged through a drive motor and a conveyor belt.

Benefits of technology

It enables automated retrieval of floating objects, reduces the workload of workers, and improves the efficiency and automation of pre-cooling treatment.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224415458U_ABST
    Figure CN224415458U_ABST
Patent Text Reader

Abstract

The utility model relates to precooling treatment device technical field, concretely is a kind of lychee preservation precooling treatment device.The utility model includes precooling tank, the inner wall of precooling tank is provided with salvage assembly, the salvage assembly includes the installation frame of being arranged in the inner wall of precooling tank, the left end of installation frame is fixedly connected with salvage net, the side of precooling tank is provided with the drive mechanism for driving installation frame to move, the inner wall both sides of installation frame are provided with the flap that is rotatably connected by hinge, the drive mechanism includes the chute that is opened in the inner wall both sides of precooling tank, the inner wall sliding connection of chute has moving rod, by setting salvage assembly, when needing to salvage floating leaf and bad fruit in precooling tank, by drive mechanism, so that installation frame moves, so that salvage net follows movement, to salvage floating leaf and bad fruit in precooling tank to salvage net in this way, to reach the effect of the salvage of floating leaf and bad fruit in precooling tank as far as possible.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the technical field of pre-cooling treatment devices, and in particular to a pre-cooling treatment device for lychee preservation. Background Technology

[0002] When used for lychee preservation, the pre-cooling treatment device quickly eliminates field heat in the lychee fruit, significantly reducing respiration intensity and enzyme activity. The pre-cooling treatment device consists of a pre-cooling box. When using the pre-cooling treatment device, workers pour ice water into the pre-cooling box, and then pour the lychee fruit into the pre-cooling box. Thus, the ice water quickly eliminates the field heat in the lychee fruit and pre-cools the lychee fruit.

[0003] The inventors discovered in their daily work that when the pre-cooling device was in use, leaves mixed in with the lychees floated on the water surface after the lychees were poured into the pre-cooling box. At the same time, some rotten lychees (such as those with insufficient moisture and poor cores) also floated on the water surface. In order to avoid these floating objects affecting the harvesting and collection of good lychees, these floating objects were usually retrieved manually by hand with a net, which may increase the workload of the workers. Utility Model Content

[0004] The purpose of this invention is to solve the problem that, in actual use, when lychees are poured into the pre-cooling box, leaves mixed in with the lychees float on the water surface, and some rotten lychees (such as those with insufficient moisture and poor cores) also float on the water surface. In order to avoid these floating objects affecting the harvesting and collection of good lychees, these floating objects are usually retrieved manually with hand-held nets, which may increase the workload of workers. Therefore, this invention proposes a lychee preservation pre-cooling treatment device.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a lychee preservation pre-cooling treatment device, comprising a pre-cooling box, wherein a retrieval assembly is provided on the inner wall of the pre-cooling box, the retrieval assembly includes an installation frame provided on the inner wall of the pre-cooling box, a retrieval net is fixedly connected to the left end of the installation frame, and a drive mechanism for driving the installation frame to move is provided on one side of the pre-cooling box.

[0006] The effect achieved by the above components is as follows: by setting up the retrieval component, when it is necessary to retrieve floating leaves and bad fruit in the pre-cooling box, the drive mechanism moves the mounting frame, causing the retrieval net to move accordingly, thereby retrieving the floating leaves and bad fruit in the pre-cooling box into the retrieval net, thus achieving the effect of retrieving floating leaves and bad fruit in the pre-cooling box as much as possible.

[0007] Preferably, the inner walls of the mounting frame are provided with flaps that are rotatably connected by hinges on both sides, and springs are fixedly connected between the flaps and the mounting frame.

[0008] The effect achieved by the above components is as follows: when the installation frame moves, the flap moves along with it, which is pushed by the water flow, causing the flap to open and the spring to be compressed, so that the floating leaves and bad fruit in the pre-cooling box can be retrieved into the retrieval net. After the installation frame stops moving, the spring returns to its original position, causing the flap to return to its original position. The installation frame is equipped with a limit block to limit the flap, preventing the installation frame from moving in the opposite direction and the flap from being pushed open.

[0009] Preferably, the drive mechanism includes sliding grooves formed on both sides of the inner wall of the precooling chamber, and a movable rod is slidably connected to the inner wall of the sliding groove. The movable rod is detachably connected to the mounting frame by means of a screw and a nut.

[0010] The effect achieved by the above components is that the moving rod of the sliding groove moves, causing the mounting frame to move.

[0011] Preferably, the screw passes through the movable rod, and the screw and nut are compatible.

[0012] The aforementioned components achieve the following effect: by removing the nut, the screw can be released from its limiting position, and then the mounting frame can be removed, allowing the floating debris inside the retrieval net to be cleaned.

[0013] Preferably, a lead screw is provided on the inner wall of one side of the slide groove, which is rotatably connected by a bearing. The lead screw and the moving rod are threaded together. A drive motor for driving the lead screw to rotate is installed at the right end of the precooling box.

[0014] The effect achieved by the above components is as follows: the drive motor is started by the controller, and the drive motor is connected to the lead screw through the reducer and coupling, so that the lead screw rotates and the moving rod of the slide moves.

[0015] Preferably, the inner wall of the precooling box is fixedly connected to a storage frame for holding ice.

[0016] The effect achieved by the above components is that ice cubes can be placed in the storage box by setting up the storage box.

[0017] Preferably, a conveyor belt is installed on the inner wall of the precooling box, the conveyor belt is driven by an external motor, an auxiliary plate is fixedly connected to the surface of the conveyor belt, auxiliary wheels are rotatably installed on both sides of the inner wall of the precooling box, the auxiliary wheels are in contact with the conveyor belt, and baffles are fixedly connected to both sides of the inner wall of the precooling box.

[0018] The aforementioned components achieve the following effect: by using an external motor to drive the conveyor belt, in conjunction with auxiliary wheels, baffles, and auxiliary plates, the good lychees in the pre-cooling box are conveyed out.

[0019] Preferably, a discharge pipe is fixedly connected to the front of the precooling box, and a valve is installed on the arc surface of the discharge pipe.

[0020] The effect achieved by the above components is to open the valve, allowing the used ice water in the pre-cooling chamber to be discharged.

[0021] In summary, the beneficial effects of this utility model are as follows:

[0022] In this invention, when the installation frame moves, the flap moves along with it, causing it to be pushed open by the water flow. This compresses the spring, allowing floating leaves and damaged fruit in the pre-cooling box to be retrieved by the retrieval net. After the installation frame stops moving, the spring returns to its original position, causing the flap to reset. The installation frame is equipped with a limiting block to prevent the flap from moving in the opposite direction and being pushed open. This solves the problem that after lychees are poured into the pre-cooling box, leaves mixed in with the lychees float on the water surface, and some damaged lychees (such as those with insufficient moisture or poor cores) also float on the water surface. To avoid these floating objects affecting the retrieval and collection of good lychees, these floating objects are usually retrieved manually by hand using a retrieval net, which may increase the workload of workers. Attached Figure Description

[0023] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0024] Figure 2 This is a three-dimensional structural diagram of the present invention from another angle;

[0025] Figure 3 This is a three-dimensional structural schematic diagram of the cross-section of the salvage component of this utility model;

[0026] Figure 4 This is a three-dimensional structural diagram of the salvage component of this utility model.

[0027] Legend: 1. Pre-cooling box; 2. Salvage assembly; 21. Mounting frame; 22. Salvage net; 23. Flip plate; 24. Spring; 25. Screw; 26. Drive mechanism; 261. Slide groove; 262. Lead screw; 263. Moving rod; 264. Drive motor; 27. Nut; 3. Conveyor belt; 4. Discharge pipe; 5. Valve; 6. Auxiliary plate; 7. Storage frame; 8. Auxiliary wheel; 9. Baffle. Detailed Implementation

[0028] Reference Figure 1 As shown, this utility model provides a technical solution: a lychee preservation pre-cooling treatment device includes a pre-cooling box 1, and a retrieval component 2 is provided on the inner wall of the pre-cooling box 1.

[0029] Reference Figure 2 and Figure 3 as well as Figure 4As shown in this embodiment: the retrieval component 2 includes an installation frame 21 disposed on the inner wall of the pre-cooling box 1. A retrieval net 22 is fixedly connected to the left end of the installation frame 21. A drive mechanism 26 for moving the installation frame 21 is disposed on one side of the pre-cooling box 1. By setting up the retrieval component 2, when it is necessary to retrieve floating leaves and spoiled fruit in the pre-cooling box 1, the drive mechanism 26 causes the installation frame 21 to move, causing the retrieval net 22 to move accordingly, thereby retrieving the floating leaves and spoiled fruit in the pre-cooling box 1 into the retrieval net 22, thus achieving the goal of retrieving the leaves and spoiled fruit in the pre-cooling box 1 as much as possible. The pre-cooling box 1 is used to retrieve floating leaves and spoiled fruit. The inner walls of the mounting frame 21 are equipped with hinged flaps 23 connected by hinges. A spring 24 is fixedly connected to the flaps 23 and the mounting frame 21. When the mounting frame 21 moves, the flaps 23 move accordingly, propelled by the water flow, causing them to open and compressing the spring 24. This allows the floating leaves and spoiled fruit in the pre-cooling box 1 to be retrieved by the retrieval net 22. After the mounting frame 21 stops moving, the spring 24 returns to its original position, causing the flaps 23 to return to their original position. The mounting frame 21 is equipped with a mechanism to assist the flaps 23. The three limiting blocks prevent the mounting frame 21 from moving in the opposite direction. The flap 23 is pushed open. The drive mechanism 26 includes a slide groove 261 on both sides of the inner wall of the precooling box 1. A moving rod 263 is slidably connected to the inner wall of the slide groove 261. The moving rod 263 is detachably connected to the mounting frame 21 by means of a screw 25 and a nut 27. The moving rod 263 moves as the slide groove 261 moves, causing the mounting frame 21 to move. The screw 25 passes through the moving rod 263. The screw 25 and the nut 27 are matched. Removing the nut 27 releases the screw 25. The limit is set, and then the mounting frame 21 is disassembled so that the floating objects in the retrieval net 22 can be cleaned. The inner wall of the slide 261 on one side is provided with a lead screw 262 that is rotatably connected by a bearing. The lead screw 262 and the moving rod 263 are threadedly connected. The right end of the precooling box 1 is equipped with a drive motor 264 for driving the lead screw 262 to rotate. The drive motor 264 is started by the controller. The drive motor 264 is connected to the lead screw 262 through a reducer and a coupling, so that the lead screw 262 rotates, causing the moving rod 263 of the slide 261 to move.

[0030] Reference Figure 1 As shown in this embodiment: a storage frame 7 is fixedly connected to the inner wall of the precooling box 1. The storage frame 7 is used to hold ice cubes. By setting the storage frame 7, ice cubes can be placed in the storage frame 7. A conveyor belt 3 is installed on the inner wall of the precooling box 1. The conveyor belt 3 is driven by an external motor. An auxiliary plate 6 is fixedly connected to the surface of the conveyor belt 3. Auxiliary wheels 8 are rotatably installed on both sides of the inner wall of the precooling box 1. The auxiliary wheels 8 contact the conveyor belt 3. Baffles 9 are fixedly connected to both sides of the inner wall of the precooling box 1. The conveyor belt 3 is driven by an external motor. With the help of the auxiliary wheels 8, baffles 9 and auxiliary plates 6, the good lychees in the precooling box 1 are conveyed out. A discharge pipe 4 is fixedly connected to the front of the precooling box 1. A valve 5 is installed on the arc surface of the discharge pipe 4. Opening the valve 5 allows the used ice water in the precooling box 1 to be discharged.

[0031] Working principle:

[0032] When using the pre-cooling device, workers pour ice water into pre-cooling box 1, followed by the addition of lychee fruit. The ice water quickly eliminates the field heat from the lychee fruit, pre-cooling it. When it's necessary to remove floating leaves and damaged fruit from pre-cooling box 1, the controller activates drive motor 264. Drive motor 264 is connected to lead screw 262 via a reducer and coupling, causing lead screw 262 to rotate. This rotates the moving rod 263 of sliding chute 261, moving mounting frame 21 and causing retrieval net 22 to move accordingly. This retrieves floating leaves and damaged fruit from pre-cooling box 1 into retrieval net 22, maximizing the removal of these items. As mounting frame 21 moves, flap 23 also moves, propelled by the water flow... The movement causes the flap 23 to open, compressing the spring 24 and allowing floating leaves and damaged fruit in the pre-cooling box 1 to be retrieved to the retrieval net 22. After the mounting frame 21 stops moving, the spring 24 returns to its original position, causing the flap 23 to return to its original position. The mounting frame 21 is equipped with a limit block to limit the flap 23, preventing the mounting frame 21 from moving in the opposite direction. The flap 23 is pushed open, and the nut 27 is removed to release the limit on the screw 25. Then, the mounting frame 21 is disassembled, allowing the floating objects in the retrieval net 22 to be cleaned. Ice can be placed in the storage frame 7. The conveyor belt 3 is driven by an external motor, and with the help of the auxiliary wheel 8, baffle 9, and auxiliary plate 6, the good lychees in the pre-cooling box 1 are transported out. The valve 5 is opened, allowing the used ice water in the pre-cooling box 1 to be discharged from the discharge pipe 4.

[0033] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any other way. Any person skilled in the art may use the disclosed technical content to make changes or modifications to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model, without departing from the scope of the utility model's technical solution, still fall within the protection scope of this utility model's technical solution. In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood through specific circumstances.

Claims

1. A litchi fresh-keeping pre-cooling treatment device, comprising a pre-cooling tank (1), characterized in that: The precooling box (1) is provided with a retrieval assembly (2) on its inner wall. The retrieval assembly (2) includes a mounting frame (21) on the inner wall of the precooling box (1). A retrieval net (22) is fixedly connected to the left end of the mounting frame (21). A drive mechanism (26) for moving the mounting frame (21) is provided on one side of the precooling box (1). Flip plates (23) are provided on both sides of the inner wall of the mounting frame (21) and are rotatably connected by hinges. A spring (24) is fixedly connected between the flip plates (23) and the mounting frame (21). The drive mechanism (26) includes sliding grooves on both sides of the inner wall of the precooling box (1). (261) A movable rod (263) is slidably connected to the inner wall of the slide groove (261). The movable rod (263) is detachably connected to the mounting frame (21) by means of a screw (25) and a nut (27). The screw (25) passes through the movable rod (263). The screw (25) and the nut (27) are adapted to each other. A lead screw (262) is provided on the inner wall of one side of the slide groove (261) and is rotatably connected by means of a bearing. The lead screw (262) and the movable rod (263) are threadedly connected. A drive motor (264) for driving the lead screw (262) to rotate is installed at the right end of the precooling box (1).

2. The litchi fresh-keeping pre-cooling treatment device according to claim 1, characterized in that: The inner wall of the precooling box (1) is fixedly connected to a storage frame (7), which is used to hold ice.

3. The litchi fresh-keeping pre-cooling treatment device according to claim 2, characterized in that: The inner wall of the precooling box (1) is equipped with a conveyor belt (3), which is driven by an external motor. An auxiliary plate (6) is fixedly connected to the surface of the conveyor belt (3). An auxiliary wheel (8) is rotatably installed on both sides of the inner wall of the precooling box (1). The auxiliary wheel (8) contacts the conveyor belt (3). A baffle (9) is fixedly connected to both sides of the inner wall of the precooling box (1).

4. The litchi fresh-keeping pre-cooling treatment device according to claim 3, characterized in that: The front of the precooling box (1) is fixedly connected to a discharge pipe (4), and a valve (5) is installed on the arc surface of the discharge pipe (4).