Refrigeration house capable of refrigerating vegetables

By designing the opening and closing components and the unloading components, the fully automatic opening and closing and stable unloading of cold storage doors are achieved, solving the problem of heavy cold storage doors requiring multiple operators and improving the automation level and safety of cold storage.

CN224262020UActive Publication Date: 2026-05-19LULIANG CHANGTONG AGRICULTURAL DEVELOPMENT CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
LULIANG CHANGTONG AGRICULTURAL DEVELOPMENT CO LTD
Filing Date
2025-05-27
Publication Date
2026-05-19

AI Technical Summary

Technical Problem

The existing cold storage doors are heavy and require multiple people to operate, which increases labor costs during high-frequency handling.

Method used

The opening and closing assembly, including motor drive, bevel gear reversing and screw transmission, converts the rotational motion into the flipping motion of the door panel, realizing fully automatic opening and closing; the unloading assembly forms a stable unloading track through the conveyor belt, anti-slip strips and convex strips, which can adapt to various container materials.

Benefits of technology

It enables automatic opening and closing without direct human contact with heavy objects, improving operational safety and unloading efficiency, reducing manual pushing force, adapting to various container materials, and reducing the risk of falls.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of refrigeration houses, and discloses a refrigeration house capable of refrigerating vegetables, which comprises a refrigeration house main body, an inlet / outlet and a door plate, the side wall of the refrigeration house main body is provided with an opening / closing assembly for driving the door plate to turn over, and the opening / closing assembly comprises a fixing frame, the fixing frame is fixedly connected to the bottom face of the door plate, extension rods are fixedly connected to the two sides of the fixing frame, traction plates are hinged to the ends of the two extension rods, moving seats are hinged to the ends of the traction plates, through holes are formed in the surfaces of the moving seats, and lead screws are in threaded connection with the interiors of the through holes. And the outer wall and the bottom end of the screw rod are rotationally connected with fixed seats. By arranging the opening and closing assembly, a combined structure of motor driving, bevel gear reversing and lead screw transmission converts rotating motion of a motor into overturning motion of the door plate, full-automatic opening and closing are achieved, and manual direct contact with heavy objects is not needed.
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Description

Technical Field

[0001] This utility model relates to the field of cold storage technology, specifically to a cold storage facility for refrigerating vegetables. Background Technology

[0002] Cold storage is a type of refrigeration equipment. It refers to an artificially created environment with different temperature and humidity than the outside world, used for the constant temperature and humidity storage of food, liquids, chemicals, pharmaceuticals, vaccines, and scientific experimental materials. Cold storage facilities are typically located near ports of transport or the point of origin. Compared to refrigerators, cold storage facilities have a larger refrigeration area and share the same refrigeration principle.

[0003] According to a cold storage facility for refrigerating vegetables (publication number: CN216924868U), the aforementioned application describes a method where a door panel is pulled to rotate around a connecting frame, causing the connecting frame to touch the ground. The user then places the container of vegetables on the door panel and slides it down, allowing the user to move the container of vegetables out of the cold storage without effort. This greatly reduces the difficulty of moving the container of vegetables and improves the efficiency of the user in moving the container of vegetables.

[0004] However, during use, the doors of cold storage are heavy and require multiple people to operate in coordination to open and close them, which significantly increases labor costs in high-frequency handling scenarios. Utility Model Content

[0005] The purpose of this invention is to provide a cold storage for refrigerating vegetables, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a cold storage for refrigerating vegetables, comprising a cold storage body, an inlet and outlet, and a door panel. The side wall of the cold storage body is provided with an opening and closing assembly for driving the door panel to rotate. The opening and closing assembly includes a fixed frame, which is fixedly connected to the bottom surface of the door panel. Extension rods are fixedly connected to both sides of the fixed frame. A traction plate is hinged to the end of each of the two sets of extension rods. A movable seat is hinged to the end of the traction plate. A through hole is opened on the surface of the movable seat, and a lead screw is threaded into the through hole. A fixed seat is rotatably connected to the outer wall and bottom end of the lead screw. The fixed seat is fixedly connected to the side wall of the cold storage body. A bevel gear is fixedly connected to the top end of the lead screw.

[0007] Preferably, a feeding assembly is provided on the surface of the door panel. The feeding assembly includes a support base and a conveying roller. The support base is fixedly connected to the surface of the door panel, and the conveying roller is rotatably connected to the side wall of the support base.

[0008] Preferably, multiple sets of conveyor rollers and support seats are provided, and the multiple sets of conveyor rollers and support seats are arrayed on the surface of the door panel, and the multiple sets of conveyor rollers are connected by conveyor belt drive.

[0009] Preferably, the surface of the conveyor belt is fixedly connected with multiple arrays of anti-slip strips, and both sides of the surface of the conveyor belt are fixedly connected with raised strips.

[0010] Preferably, a motor is fixedly connected to the side wall of the main body of the cold storage, and a rotating shaft is fixedly connected to the output end of the motor. Two sets of symmetrically arranged bevel gears are fixedly connected to the outer wall of the rotating shaft, and the bevel gears mesh with the bevel gears.

[0011] Preferably, the end of the rotating shaft is rotatably connected to a mounting base, and the mounting base is fixedly connected to the side wall of the cold storage body.

[0012] Compared with the prior art, this utility model provides a cold storage for refrigerating vegetables, which has the following features:

[0013] Beneficial effects:

[0014] 1. This cold storage unit for refrigerated vegetables utilizes an opening and closing mechanism. A combination of motor drive, bevel gear reversing, and screw transmission converts the motor's rotational motion into the door's tilting motion, achieving fully automatic opening and closing without direct manual contact with heavy objects. During transmission, the self-locking characteristic of the screw nut ensures the door remains stably in the open or closed state, preventing accidental movement due to accidental contact or external force, thus improving operational safety.

[0015] 2. This cold storage for refrigerated vegetables features a feeding assembly with anti-slip strips that increase friction between the container and the conveyor belt, preventing the container from sliding or slipping quickly. It is suitable for containers of various materials. The raised strips prevent the container from tipping over and falling. Combined with multiple sets of conveyor rollers, it forms a stable unloading track, making the unloading process safer. The container can slide down automatically with the help of gravity. At the same time, the conveyor rollers and conveyor belt work together to reduce frictional resistance, reduce manual pushing force, and improve batch unloading efficiency. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the opening and closing component structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the material feeding assembly structure of this utility model.

[0019] In the diagram: 1. Main body of the cold storage; 11. Inlet / outlet; 2. Door panel; 3. Opening / closing assembly; 31. Fixed frame; 32. Extension rod; 33. Traction plate; 34. Moving seat; 35. Lead screw; 36. Fixed seat; 37. Bevel gear one; 38. Motor; 39. Rotating shaft; 310. Bevel gear two; 311. Mounting seat; 4. Feeding assembly; 41. Support seat; 42. Conveyor roller; 43. Conveyor belt; 44. Anti-slip strip; 45. Raised strip. Detailed Implementation

[0020] like Figures 1-3 As shown, this utility model provides a technical solution: a cold storage for refrigerating vegetables, including a cold storage body 1, an inlet and outlet 11 on the side wall of the cold storage body 1, a door panel 2 hinged to the side wall of the cold storage body 1, and an opening and closing assembly 3 for driving the door panel 2 to flip on the side wall of the cold storage body 1. The opening and closing assembly 3 includes a fixing frame 31, which is fixedly connected to the bottom surface of the door panel 2. Extension rods 32 are fixedly connected to both sides of the fixing frame 31. The ends of the two sets of extension rods 32 are hinged to traction plates 33, and the ends of the traction plates 33 are hinged to movable seats 34. The fixing frame 31 is used to support and fix the door panel 2, and the movable seat 34 moves vertically, so that the traction plates 33 can drive the fixing frame 31 and the door panel 2 to rotate about the hinge point with the cold storage body 1, thereby realizing the opening and closing of the door panel 2. The surface of the movable seat 34 has a through hole, and a lead screw 35 is threaded into the through hole. The outer wall and bottom end of the lead screw 35 are rotatably connected to a fixed seat 36. The fixed seat 36 is fixedly connected to the side wall of the cold storage body 1. A bevel gear 37 is fixedly connected to the top end of the lead screw 35. The two sets of fixed seats 36 are used to support and position the lead screw 35. By rotating the lead screw 35, the movable seat 34 can move vertically.

[0021] like Figures 1-3 As shown, a motor 38 is fixedly connected to the side wall of the cold storage body 1. A rotating shaft 39 is fixedly connected to the output end of the motor 38. Two sets of symmetrically arranged bevel gears 310 are fixedly connected to the outer wall of the rotating shaft 39. The bevel gears 310 mesh with the bevel gears 37. A mounting base 311 is rotatably connected to the end of the rotating shaft 39 and is fixedly connected to the side wall of the cold storage body 1. The output shaft of the motor 38 drives the rotating shaft 39 to rotate, causing the bevel gears 310 to drive the bevel gears 37 to rotate, providing rotational power to the lead screw 35 and driving the movement of the moving seat 34. The mounting base 311 supports and positions the end of the rotating shaft 39, ensuring the stability of the rotating shaft 39 during rotation.

[0022] In summary, the transmission path of the opening and closing assembly 3 is as follows: motor 38 → rotating shaft 39 → bevel gear 2 310 (2 sets) → bevel gear 1 37 → lead screw 35 → moving seat 34 → traction plate 33 → extension rod 32 → fixed frame 31 → door panel 2. Through the cooperation of bevel gear 2 310 and bevel gear 1 37, the direction is reversed, and the lead screw 35 and moving seat 34 drive the rotation of motor 38 into the flipping motion of door panel 2, realizing mechanized opening and closing and avoiding manual operation of heavy objects.

[0023] like Figures 1-3 As shown, a feeding assembly 4 is provided on the surface of the door panel 2. The feeding assembly 4 includes a support base 41 and a conveying roller 42. The support base 41 is fixedly connected to the surface of the door panel 2, and the conveying roller 42 is rotatably connected to the side wall of the support base 41. Two sets of support bases 41 are symmetrically arranged at both ends of the conveying roller 42 to ensure the supporting capacity of the conveying roller 42. Multiple sets of conveying rollers 42 and support bases 41 are provided, and multiple sets of conveying rollers 42 and support bases 41 are arrayed on the surface of the door panel 2. The spacing between multiple sets of conveying rollers 42 is 20-30cm, ensuring that at least three sets of conveying rollers 42 support the vegetable container. The multiple sets of conveying rollers 42 are connected by a conveyor belt 43. Multiple arrays of anti-slip strips 44 are fixedly connected to the surface of the conveyor belt 43. The anti-slip strips 44 are 5-8mm high (rubber material, friction coefficient ≥0.6). Raised strips 45 are fixedly connected to both sides of the surface of the conveyor belt 43. The operator places the container on the conveyor belt 43. Under the action of gravity or by pushing manually, the vegetable container slides down the inclined door panel to the ground. The anti-slip strip 44 increases the friction between the vegetable container and the conveyor belt 43, and the raised strip 45 ensures that the vegetable container will not slide off the sides of the conveyor belt 43.

[0024] In summary, the conveyor belt 43, anti-slip strip 44, and raised strip 45 work together to adapt to various containers such as smooth plastic boxes and woven bags, reducing the risk of falling.

[0025] In this invention, during use, the motor 38 is started, and its output shaft drives the rotating shaft 39 to rotate, which in turn drives the two sets of bevel gears 310 to rotate synchronously. The second bevel gear 310 meshes with the first bevel gear 37, changing the rotation direction from horizontal to vertical, thus driving the lead screw 35 to rotate. When the lead screw 35 rotates, the movable seat 34, which is threaded to it, moves downwards, and the door panel 2 flips outwards around the hinge point until it is fully open. A container filled with vegetables is placed on the conveyor belt 43 on the surface of the door panel 2, with the bottom of the container contacting multiple sets of conveyor rollers 42. Anti-slip strips 44 increase the friction between the container and the conveyor belt 43, preventing the container from sliding too quickly or slipping due to tilting. The raised strips 45 provide physical restraint, preventing the container from sliding off the side and ensuring a safe and stable unloading process. Since the door panel 2 is tilted after opening, the container slides down to the ground under gravity or by manual pushing, completing the unloading process. After unloading is completed, the motor 38 rotates in the reverse direction, causing the shaft 39 and bevel gear 310 to rotate in the reverse direction, and the lead screw 35 to rotate in the reverse direction. The moving seat 34 moves upward, and the traction plate 33 drives the extension rod 32, causing the door panel 2 to flip inward and close until it is tightly fitted with the inlet and outlet 11 of the cold storage body 1, forming a sealed space.

[0026] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. A cold storage for refrigerating vegetables, comprising a main body (1), an inlet / outlet (11), and a door panel (2), characterized in that: The side wall of the cold storage body (1) is provided with an opening and closing assembly (3) for driving the door panel (2) to flip. The opening and closing assembly (3) includes a fixed frame (31). The fixed frame (31) is fixedly connected to the bottom surface of the door panel (2). Extension rods (32) are fixedly connected to both sides of the fixed frame (31). The ends of the two sets of extension rods (32) are hinged to traction plates (33). The ends of the traction plates (33) are hinged to movable seats (34). The surface of the movable seats (34) is provided with through holes, and a screw rod (35) is threaded into the through holes. The outer wall and bottom end of the screw rod (35) are rotatably connected to fixed seats (36). The fixed seats (36) are fixedly connected to the side wall of the cold storage body (1). A bevel gear (37) is fixedly connected to the top end of the screw rod (35).

2. The cold storage for refrigerated vegetables according to claim 1, characterized in that: A feeding assembly (4) is provided on the surface of the door panel (2). The feeding assembly (4) includes a support base (41) and a conveying roller (42). The support base (41) is fixedly connected to the surface of the door panel (2), and the conveying roller (42) is rotatably connected to the side wall of the support base (41).

3. A cold storage facility for refrigerating vegetables according to claim 2, characterized in that: Multiple sets of conveying rollers (42) and support bases (41) are provided, and the multiple sets of conveying rollers (42) and support bases (41) are arrayed on the surface of the door panel (2). The multiple sets of conveying rollers (42) are connected by a conveyor belt (43).

4. A cold storage facility for refrigerating vegetables according to claim 3, characterized in that: Multiple arrays of anti-slip strips (44) are fixedly connected to the surface of the conveyor belt (43), and protrusions (45) are fixedly connected to both sides of the surface of the conveyor belt (43).

5. A cold storage facility for refrigerating vegetables according to claim 1, characterized in that: A motor (38) is fixedly connected to the side wall of the main body (1) of the cold storage. A rotating shaft (39) is fixedly connected to the output end of the motor (38). Two sets of symmetrically arranged bevel gears (310) are fixedly connected to the outer wall of the rotating shaft (39). The bevel gears (310) mesh with the bevel gears (37).

6. A cold storage facility for refrigerating vegetables according to claim 5, characterized in that: The end of the rotating shaft (39) is rotatably connected to a mounting base (311), which is fixedly connected to the side wall of the cold storage body (1).