Double door of cold storage

The innovative design of the double-door cold storage unit utilizes components such as a frame, electric cylinder, push rod, and support arm to achieve a tight fit between the cold storage door and the door frame, thus solving the problem of poor sealing caused by the gap between the cold storage door and the door frame and improving the sealing effect and transportation stability of the cold storage.

CN224151254UActive Publication Date: 2026-04-21WUXI HAILIAN MARINE EQUIP CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
WUXI HAILIAN MARINE EQUIP CO LTD
Filing Date
2025-05-15
Publication Date
2026-04-21

AI Technical Summary

Technical Problem

Existing cold storage double doors have gaps between the door and the door frame during sealing, resulting in poor sealing performance.

Method used

A double-door structure for cold storage was designed. By combining a frame, electric cylinder, push rod, support arm and support, the cold storage door can be tightly fitted, reducing the gap between the door and the door frame. A spring and pulley structure is used to reduce friction, and a sealing element is used to improve the sealing effect.

Benefits of technology

It effectively reduces cold air leakage, improves the sealing performance of cold storage, reduces bumps during transportation, and enhances ease of use.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224151254U_ABST
    Figure CN224151254U_ABST
Patent Text Reader

Abstract

The utility model belongs to the field of refrigeration houses, and particularly relates to a refrigeration house double door which comprises a machine frame, a refrigeration house door is connected to the machine frame in a sliding mode, an electric cylinder is fixedly connected to the machine frame, and the output end of the electric cylinder is fixedly connected with the refrigeration house door. The cold storage door comprises a door frame and a door plate, the door plate is connected to the middle of the door frame in a sliding mode, a supporting plate is fixedly connected to the door frame, a sliding hole is formed in the supporting plate, when the cold storage door is used, the cold storage door is composed of the door frame and the door plate, the door frame slides on the rack, an electric cylinder is fixedly connected to the rack, and the electric cylinder is used for pushing the door frame to move. When the door is closed, the two cold storage doors are closed, the door frame moves, when the supporting arm moves to the support, the support pushes the supporting arm to move, the supporting arm drives the push rod and the door plate to move, and therefore the door plate is attached to the cold storage door frame, and a gap between the door plate and the door frame can be reduced; therefore, sealing is facilitated, and cold air leakage is reduced.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of cold storage, specifically a cold storage double-door system. Background Technology

[0002] Refrigerated ships are specialized transport vessels used to carry perishable foods such as fish, meat, fruits, and vegetables in a frozen state or under certain low-temperature conditions.

[0003] Currently, there are two types of double doors for cold storage: one is connected to the door frame by hinges, and the other is a sliding type with corresponding slide rails installed on the ground and an electric cylinder installed. The electric cylinder drives the cold storage door to move, thereby closing the doorway of the cold storage.

[0004] However, in use, existing cold storage doors have a certain gap between the door and the door frame to facilitate horizontal movement. However, during sealing, this gap prevents the cold storage door from fitting tightly against the door frame, thus affecting the sealing effect of the cold storage. Therefore, a double-door cold storage solution is proposed to address the above problem. Utility Model Content

[0005] In order to overcome the shortcomings of the existing technology and solve at least one of the technical problems mentioned in the background art, this utility model proposes a double-door cold storage.

[0006] The technical solution adopted by this utility model to solve its technical problem is as follows: The cold storage double door of this utility model includes a frame, a cold storage door slidably connected to the frame, an electric cylinder fixedly connected to the frame, and the output end of the electric cylinder fixedly connected to the cold storage door; the cold storage door includes a door frame and a door panel, the door panel is slidably connected to the middle of the door frame, a support plate is fixedly connected to the door frame, a sliding hole is opened on the support plate, a push rod is slidably connected in the sliding hole, one end of the push rod is fixedly connected to the door panel, and the other end of the push rod is fixedly connected to a support arm, and a support is fixedly connected to the frame at a position corresponding to the support arm.

[0007] Preferably, a spring is fitted on the push rod, one end of the spring is fixedly connected to the end of the push rod, the other end of the spring is fixedly connected to the support plate, and a limit ring is fixedly connected to the end of the push rod away from the door panel.

[0008] Preferably, the top and bottom of the gantry are rotatably connected to multiple pulleys, and the frame is provided with a sliding groove at the position corresponding to the pulley. The pulley is inserted into the sliding groove and slides with it, and a bearing is installed at the rotatable connection of the pulley.

[0009] Preferably, a roller is rotatably connected to one end of the support arm near the support base, a guide groove is provided inside the support base, and an inclined surface is provided on the side of the guide groove, with the pulley inserted into the inside of the guide groove.

[0010] Preferably, a hinge seat is fixedly connected to the bottom of the frame, a rotating shaft is fixedly connected to the top of the hinge seat, a support plate is rotatably connected to the rotating shaft, and the support plate is located on the side of the frame.

[0011] Preferably, a sealing element is fixed to the side of the door panel away from the support plate, and the sealing element is made of rubber.

[0012] The advantages of this utility model are:

[0013] 1. This utility model, by setting up a frame, door frame, door panel, electric push rod, push rod, support arm, support base, and support plate, allows the cold storage door to be constructed from the door frame and door panel during use. The door frame slides on the frame, and an electric cylinder is fixedly connected to the frame. The electric cylinder is used to push the door frame to move, thereby controlling the opening and closing of the cold storage door. When closing, the two cold storage doors close together, and the door frame moves. When the support arm moves to the support base, the support base pushes the support arm to move, and the support arm drives the push rod and door panel to move, so that the door panel fits against the cold storage door frame. Therefore, the gap between the door panel and the door frame can be reduced, which facilitates sealing and reduces the leakage of cold air.

[0014] 2. By setting up a hinge seat, a rotating shaft, and a pallet, this utility model adopts a sunken structure for the frame during installation to facilitate pushing the trolley. The bottom of the frame is lower than the working ground. However, the chute can cause bumps during transportation. Therefore, the bottom of the frame is connected to the pallet through the hinge seat. After the door panel is removed, the pallet can be placed flat on the chute of the frame. The trolley moves on the pallet, thus reducing bumps. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

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

[0017] Figure 2 This is a schematic diagram of the frame structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the gantry structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the push rod structure of this utility model;

[0020] Figure 5 This is a schematic diagram of the structure of the tray of this utility model.

[0021] In the diagram: 11. Frame; 12. Electric cylinder; 13. Gantry; 14. Door panel; 15. Support plate; 16. Push rod; 17. Support arm; 18. Support; 2. Spring; 31. Pulley; 32. Slide groove; 41. Guide groove; 42. Inclined surface; 43. Roller; 5. Seal; 61. Hinge seat; 62. Rotating shaft; 63. Support plate. Detailed Implementation

[0022] 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 scope of protection of the present utility model.

[0023] Specific implementation examples are given below.

[0024] Please see Figure 1-5 As shown, a cold storage double door includes a frame 11, on which a cold storage door is slidably connected. An electric cylinder 12 is fixedly connected to the frame 11, and the output end of the electric cylinder 12 is fixedly connected to the cold storage door. The cold storage door includes a door frame 13 and a door panel 14. The door panel 14 is slidably connected to the middle of the door frame 13. A support plate 15 is fixedly connected to the door frame 13. A sliding hole is provided on the support plate 15, and a push rod 16 is slidably connected in the sliding hole. One end of the push rod 16 is fixedly connected to the door panel 14, and the other end of the push rod 16 is fixedly connected to a support arm 17. A support 18 is fixedly connected to the frame 11 at a position corresponding to the support arm 17.

[0025] In use, the cold storage door consists of a door frame 13 and a door panel 14. The door frame 13 slides on the frame 11, and an electric cylinder 12 is fixed on the frame 11. The electric cylinder 12 is used to push the door frame 13 to move, thereby controlling the opening and closing of the cold storage door. When closing, the two cold storage doors close together, and the door frame 13 moves. When the support arm 17 moves to the support 18, the support 18 pushes the support arm 17 to move. The support arm 17 drives the push rod 16 and the door panel 14 to move, so that the door panel 14 fits against the cold storage door frame. Therefore, the gap between the door panel 14 and the door frame can be reduced, which facilitates sealing and reduces the leakage of cold air.

[0026] Furthermore, such as Figure 1-5As shown, a spring 2 is sleeved on the push rod 16. One end of the spring 2 is fixedly connected to the end of the push rod 16, and the other end of the spring 2 is fixedly connected to the support plate 15. A limit ring is fixedly connected to the end of the push rod 16 away from the door panel 14. Multiple pulleys 31 are rotatably connected to the top and bottom of the door frame 13. A groove 32 is opened on the frame 11 at the position corresponding to the pulley 31. The pulley 31 is inserted into the groove 32 and slides with it. A bearing is installed at the rotatable connection of the pulley 31.

[0027] In use, one end of spring 2 is fixedly connected to push rod 16, and the other end of spring 2 is fixedly connected to support plate 15. Spring 2 can pull push plate and door panel 14 to move, thereby separating door panel 14 from cold storage door frame, increasing gap and sealing, so that door panel 14 can slide open cold storage. The frame 11 is provided with slide groove 32, and multiple pulleys 31 are rotatably connected to door frame 13. The pulleys 31 are inserted into slide groove 32 to slide, thereby reducing the friction of door frame 13 lateral movement, making it convenient to close and open cold storage door, and convenient to use.

[0028] Furthermore, such as Figure 1-5 As shown, a roller 43 is rotatably connected to one end of the support arm 17 near the support 18. A guide groove 41 is provided inside the support 18, and an inclined surface 42 is provided on the side of the guide groove 41. The pulley 31 is inserted into the guide groove 41. A hinge seat 61 is fixedly connected to the bottom of the frame 11, and a rotating shaft 62 is fixedly connected to the top of the hinge seat 61. A support plate 63 is rotatably connected to the rotating shaft 62, and the support plate 63 is located on the side of the frame 11. A sealing element 5 is fixedly connected to the side of the door panel 14 away from the support plate 63. The sealing element 5 is made of rubber.

[0029] During use, the end of the support arm 17 is rotatably connected to a roller 43, and a guide groove 41 is provided on its support 18. When the door is closed, the roller 43 slides into the guide groove 41. The guide groove 41 is provided with an inclined surface 42 for transition. The guide groove 41 and the pulley 31 on the support 18 cooperate to push the push rod 16 to move. During installation, in order to facilitate pushing the trolley, the frame 11 adopts a sunken structure. The bottom of the frame 11 is lower than the working ground. However, the slide 32 will cause bumps during transportation. Therefore, the bottom of the frame 11 is connected to a support plate 63 through a hinge seat 61. After the door panel 14 is removed, the support plate 63 can be placed flat on the slide 32 of the frame 11. When the transport trolley moves on the support plate 63, the bumps can be reduced. The sealing element 5 is provided to improve the sealing effect between the door panel 14 and the cold storage door frame.

[0030] Furthermore, such as Figure 1-5As shown, the door panel 14 is equipped with a vacuum insulation board inside. During use, the heat insulation effect is improved by relying on the vacuum insulation board inside the door panel 14.

[0031] Working principle: In use, the cold storage door consists of a door frame 13 and a door panel 14. The door frame 13 slides on a frame 11. An electric cylinder 12 is fixed to the frame 11, which pushes the door frame 13 to move, thereby controlling the opening and closing of the cold storage door. When closing, the two cold storage doors close together, and the door frame 13 moves. When the support arm 17 moves to the support 18, the support 18 pushes the support arm 17 to move. The support arm 17 drives the push rod 16 and the door panel 14 to move, so that the door panel 14 fits against the cold storage door frame. This reduces the gap between the door panel 14 and the door frame, thus... To facilitate sealing and reduce cold air leakage; during use, one end of spring 2 is fixedly connected to push rod 16, and the other end of spring 2 is fixedly connected to support plate 15. Spring 2 can pull push plate and door panel 14 to move, thereby separating door panel 14 from cold storage door frame, increasing gap and sealing, so that door panel 14 can slide open cold storage. The frame 11 is provided with slide groove 32, and multiple pulleys 31 are rotatably connected to door frame 13. The pulleys 31 are inserted into slide groove 32 to slide, thereby reducing the friction of door frame 13 lateral movement, making it convenient to close and open cold storage door, and convenient to use;

[0032] During use, the end of the support arm 17 is rotatably connected to a roller 43, and a guide groove 41 is provided on its support 18. When the door is closed, the roller 43 slides into the guide groove 41. The guide groove 41 is provided with an inclined surface 42 for transition. The guide groove 41 and the pulley 31 on the support 18 cooperate to push the push rod 16 to move. During installation, in order to facilitate pushing the trolley, the frame 11 adopts a sunken structure. The bottom of the frame 11 is lower than the working ground. However, the slide 32 will cause bumps during transportation. Therefore, the bottom of the frame 11 is connected to a support plate 63 through a hinge seat 61. After the door panel 14 is removed, the support plate 63 can be placed flat on the slide 32 of the frame 11. When the transport trolley moves on the support plate 63, the bumps can be reduced. The sealing element 5 is provided to improve the sealing effect between the door panel 14 and the cold storage door frame.

[0033] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0034] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A cold storage double door, comprising a frame (11), a cold storage door is slidably connected on the frame (11), an electric cylinder (12) is fixedly connected on the frame (11), and an output end of the electric cylinder (12) is fixedly connected with the cold storage door; characterized in that: The cold storage door includes a door frame (13) and a door panel (14). The door panel (14) is slidably connected to the middle of the door frame (13). A support plate (15) is fixedly connected to the door frame (13). A sliding hole is provided on the support plate (15). A push rod (16) is slidably connected in the sliding hole. One end of the push rod (16) is fixedly connected to the door panel (14). The other end of the push rod (16) is fixedly connected to a support arm (17). A support (18) is fixedly connected to the frame (11) at the corresponding position of the support arm (17). ​ 2. The cold storage room with double doors according to claim 1, characterized in that: A spring (2) is fitted on the push rod (16). One end of the spring (2) is fixedly connected to the end of the push rod (16), and the other end of the spring (2) is fixedly connected to the support plate (15). A limit ring is fixedly connected to the end of the push rod (16) away from the door panel (14).

3. The cold storage room with double doors according to claim 2, characterized in that: The top and bottom of the gantry (13) are rotatably connected with multiple pulleys (31). The frame (11) is provided with a groove (32) at the corresponding position of the pulley (31). The pulley (31) is inserted into the groove (32) and slides with it. The rotatable connection of the pulley (31) is equipped with a bearing.

4. The cold storage room with double doors according to claim 3, characterized in that: The support arm (17) is rotatably connected to a roller (43) near the support (18). The support (18) has a guide groove (41) inside. The side of the guide groove (41) has an inclined surface (42). The pulley (31) is inserted into the guide groove (41).

5. The cold storage room with double doors according to claim 4, characterized in that: The bottom of the frame (11) is fixedly connected to a hinge seat (61), and the top of the hinge seat (61) is fixedly connected to a rotating shaft (62). A support plate (63) is rotatably connected to the rotating shaft (62), and the support plate (63) is located on the side of the frame (11).

6. A cold storage double-door according to claim 5, characterized in that: A sealing element (5) is fixed to the side of the door panel (14) away from the support plate (63), and the sealing element (5) is made of rubber.