Refrigeration storage sealing door structure

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By adopting synchronously rotating door panel structure and negative pressure pumping technology in the cold storage, the problem of ineffective sealing between the closed door and the wall panel of the cold storage is solved, and the insulation effect of the cold storage is significantly improved.

CN222799398UActive Publication Date: 2025-04-25HUBEI KUANGHENG CONSTRUCTION ENGINEERING CO LTD

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Patent Information

Application Number: CN202421563504.X
Authority / Receiving Office: CN · China
Patent Type: Utility models(China)
Current Assignee / Owner
Filing Date: 2024-07-03
Publication Date: 2025-04-25
Estimated Expiration: 2034-07-03

AI Technical Summary

Technical Problem

The existing cold storage closed doors and wall panels cannot be effectively sealed, resulting in heat exchange and reducing the insulation effect.

Method used

A closed door structure of the cold storage is adopted, and the second door panel on the inner side of the cold storage is rotated synchronously with the first door panel on the outer side through the first bevel gear and the connecting shaft, forming a double seal with the design of the sealing ring and the convex strip. At the same time, air is pumped through the air nozzle to generate negative pressure to further enhance the sealing effect.

Benefits of technology

The close contact between the closed door of the cold storage and the wall panel is achieved, which significantly improves the sealing property, reduces heat exchange, and improves the insulation effect of the cold storage.

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Abstract

The utility model discloses a sealing door structure of a refrigeration house, which relates to the technical field of refrigeration houses and comprises a wallboard provided with an opening. The two door plate mechanisms are arranged on the inner side and the outer side of the wall plate correspondingly, each door plate mechanism comprises a door plate, a rotating shaft and a first bevel gear, the rotating shaft is fixedly connected to one side of the door plate, and the first bevel gear is fixedly connected to the rotating shaft; and the connecting shaft penetrates through the wall plate, and the two ends of the connecting shaft are fixedly connected with second bevel gears. The second door plate on the inner side of the refrigeration house and the first door plate on the outer side of the refrigeration house can rotate synchronously, opening and closing are facilitated, meanwhile, double sealing is formed, after the door plates are closed, the rotating rod is rotated, the sealing ring can be pressed on the protruding strip, the sealing effect of the door plates is improved, air between the first door plate and the second door plate can be extracted through the air tap, and the sealing effect is improved. Heat exchange of the cold storage door plate is reduced, the sealing ring can be firmly pressed on the protruding strip, and the sealing effect of the door plate is further improved.

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Description

Technical Field

[0001] The utility model relates to the technical field of cold storage, in particular to a closed door structure of a cold storage. Background Art

[0002] Cold storage is a constant temperature storage refrigeration equipment for food, dairy products, meat, aquatic products, chemicals, medicine, seedling cultivation, scientific experiments, etc. Existing cold storage needs to set openings on the cold storage wall panels, and set cold storage doors at the openings for the entry and exit of staff and frozen goods. The main function of the closed door of the cold storage is to ensure the insulation and airtightness of the cold storage equipment and the entrance and exit of the frozen storage room to avoid heat exchange inside and outside the cold storage.

[0003] At present, the closed doors and wall panels of cold storage are usually sealed with sealing strips. This method cannot effectively seal the closed doors and wall panels of cold storage, especially after long-term use, the sealing strips are aged, the closed doors and wall panels of cold storage are not closed tightly, cannot be in close contact, and have gaps, causing heat exchange at the connection between the closed doors and wall panels of cold storage, reducing the insulation effect of the cold storage. Utility Model Content

[0004] The utility model aims to solve the problems in the prior art and proposes a cold storage closed door structure which ensures that the cold storage closed door is in close contact with the wall panel to improve the sealing performance of the cold storage closed door and the wall panel.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A cold storage closed door structure, comprising:

[0007] a wall panel having an opening therein;

[0008] Two door panel mechanisms, the two door panel mechanisms are respectively arranged on the inner side and the outer side of the wall panel, each door panel mechanism comprises a door panel, a rotating shaft and a first bevel gear, the rotating shaft is fixedly connected to one side of the door panel, and the first bevel gear is fixedly connected to the rotating shaft;

[0009] A connecting shaft, the connecting shaft passes through the wall plate, and both ends of the connecting shaft are fixedly connected with second bevel gears, and are respectively meshed with the two first bevel gears, so that the two rotating shafts rotate synchronously in opposite directions;

[0010] And a rotating rod and a threaded sleeve, the rotating rod and the threaded sleeve are respectively arranged on the two door panels, one end of the rotating rod is provided with a threaded rod, the threaded rod can be threadedly connected with the threaded sleeve, so that the two door panels are close to each other and embedded in the opening.

[0011] Furthermore, the two door panel mechanisms are arranged symmetrically relative to the wall panel.

[0012] Furthermore, the two door panels are respectively a first door panel and a second door panel, and the first door panel and the second door panel are respectively arranged on the outer side and the inner side of the wall panel.

[0013] Furthermore, a convex strip is provided on the inner wall of the opening, a sealing ring is provided on the side where the first door panel and the second door panel are close to each other, and the first door panel and the second door panel can be embedded in the opening to press the sealing ring onto the convex strip.

[0014] Furthermore, a through hole is opened on the first door panel, a fixing sleeve is fixedly connected to the through hole, and the rotating rod is rotatably connected in the fixing sleeve.

[0015] Furthermore, a hand wheel is provided at one end of the rotating rod.

[0016] Furthermore, a rotating member is fixedly connected to one side of the two door panels, and one end of the rotating member is fixedly connected to the rotating shaft.

[0017] Furthermore, fixing members are fixedly connected to both sides of the wall panel, and the ends of the rotating shaft are rotatably connected to the fixing members.

[0018] Furthermore, fixing boxes are provided on both sides of the wall panel, and the first bevel gear and the second bevel gear are both arranged inside the fixing boxes.

[0019] Furthermore, a vent hole is provided on the first door panel, an air nozzle is provided at the vent hole, and a valve is provided on the air nozzle.

[0020] The beneficial effects of the utility model are:

[0021] The closed door structure of the cold storage in the utility model requires a first bevel gear and a connecting shaft, so that the second door panel inside the cold storage rotates synchronously with the first door panel outside. When the first door panel and the second door panel are closed, the sealing ring is pressed on the convex strip to form a double seal. Since the first door panel and the second door panel rotate synchronously, it is convenient for the staff to open or close the door panel from the outside. After the door panel is closed, the rotating rod is rotated to screw the threaded rod into the threaded sleeve, so that the first door panel and the second door panel are close to each other, and the sealing ring is pressed on the convex strip to improve the sealing effect of the door panel.

[0022] After the first door panel and the second door panel are closed, the air between the first door panel and the second door panel can be extracted through the air nozzle. On the one hand, a vacuum is maintained between the first door panel and the second door panel to reduce the heat exchange of the cold storage door panels. On the other hand, due to the negative pressure generated between the first door panel and the second door panel, the first door panel and the second door panel firmly press the sealing ring onto the convex strip, further improving the sealing effect of the door panels. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a three-dimensional structural schematic diagram of a cold storage closed door structure proposed by the utility model;

[0024] Figure 2 This is a top view of the structure of a closed door structure of a cold storage proposed by the utility model when it is closed;

[0025] Figure 3 The utility model is a cross-sectional view of the structure of a cold storage closed door when it is opened, viewed from above.

[0026] In the figure: 1 wall panel, 101 convex strip, 2 first door panel, 3 fixing member, 4 rotating member, 5 rotating shaft, 6 fixing box, 7 rotating rod, 701 threaded rod, 702 fixing sleeve, 8 air nozzle, 9 valve, 10 first bevel gear, 11 connecting shaft, 12 second door panel, 13 threaded sleeve, 14 sealing ring. DETAILED DESCRIPTION

[0027] The technical solution of this patent is further described in detail below in conjunction with specific implementation methods.

[0028] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0029] In the description of this patent, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing this patent and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this patent.

[0030] In the description of this patent, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "set" should be understood in a broad sense, for example, it can be fixedly connected or set, or it can be detachably connected or set, or connected or set in one piece. For ordinary technicians in this field, the specific meanings of the above terms in this patent can be understood according to specific circumstances.

[0031] Reference Figure 1-3 A cold storage closed door structure is used for sealing the cold storage door to ensure the sealing effect of the cold storage door and improve the thermal insulation performance of the cold storage.

[0032] The cold storage closed door structure comprises a wall panel 1, two door panel mechanisms, a connecting shaft 11, a rotating rod 7 and a threaded sleeve 13;

[0033] The two door panel mechanisms are respectively arranged on the inner and outer sides of the wall panel 1, and are symmetrically arranged relative to the wall panel 1. Each door panel mechanism includes a door panel, a rotating shaft 5 and a first bevel gear 10. A fixing member 3 is fixedly connected to the wall panel 1, and the end of the rotating shaft 5 is rotatably connected to the fixing member 3. A rotating member 4 is fixedly connected to the door panel, and the rotating shaft 5 is fixedly connected to the rotating member 4, so that the door panel can be driven to rotate and open or close by the rotating shaft 5. The first bevel gear 10 is fixedly connected to the rotating shaft 5, and the connecting shaft 11 passes through the wall panel 1. Both ends of the connecting shaft 11 are fixedly connected to the second bevel gears, and they are respectively meshed with the two first bevel gears 10. A fixing box 6 is provided on both sides of the plate 1, and the first bevel gear 10 and the second bevel gear are both arranged inside the fixing box 6 to protect the bevel gear transmission part. Since the connecting shaft 11 is connected to the rotating shaft 5 through the second bevel gear and the first bevel gear 10, the two rotating shafts 5 can rotate synchronously in different directions. The two door panels are the first door panel 2 and the second door panel 12, and the first door panel 2 and the second door panel 12 are respectively arranged on the outside and the inside of the wall panel 1. When the staff opens or closes the first door panel 2 on the outside of the cold storage wall panel 1, the second door panel 12 on the inside of the cold storage wall panel 1 can move synchronously to be opened or closed.

[0034] An opening is provided on the wall panel 1, and a convex strip 101 is provided on the inner wall of the opening. A sealing ring 14 is provided on the side where the first door panel 2 and the second door panel 12 are close to each other. When the first door panel 2 and the second door panel 12 are closed, the first door panel 2 and the second door panel 12 can be respectively embedded in the opening from the outside and the inside of the wall panel 1, thereby pressing the sealing ring 14 onto the convex strip 101 to achieve double sealing at the opening of the wall panel 1.

[0035] A through hole is provided on the first door panel 2, and a fixing sleeve 702 is fixedly connected to the through hole. The rotating rod 7 is rotatably connected in the fixing sleeve 702. A hand wheel is provided at one end of the rotating rod 7, and a threaded rod 701 is provided at the other end. A threaded sleeve 13 is fixedly connected to one side of the second door panel 12. When the first door panel 2 and the second door panel 12 are rotated and closed, one end of the threaded rod 701 can be inserted into the threaded sleeve 13. At this time, the threaded rod 701 is rotated, and the threaded rod 701 will be screwed into the threaded sleeve 13, so that the first door panel 2 and the second door panel 12 are close to each other and embedded in the opening, so that the sealing ring 14 is pressed on the convex strip 101, thereby improving the sealing effect at the opening of the wall panel 1.

[0036] In addition, in order to improve the sealing effect of the cold storage door panel, an air vent is opened on the first door panel 2, and an air nozzle 8 is provided at the air vent, and a valve 9 is provided on the air nozzle 8. After the first door panel 2 and the second door panel 12 are closed, the air between the first door panel 2 and the second door panel 12 can be extracted through the air nozzle 8. On the one hand, a vacuum is maintained between the first door panel 2 and the second door panel 12 to reduce the heat exchange of the cold storage door panel. On the other hand, due to the negative pressure generated between the first door panel 2 and the second door panel 12, the first door panel 2 and the second door panel 12 can be adsorbed and embedded in the opening, so that the first door panel 2 and the second door panel 12 firmly press the sealing ring 14 on the convex strip 101, further improving the sealing effect at the opening of the wall panel 1.

[0037] The working principle of the cold storage closed door structure is as follows: when the cold storage needs to be closed, the first door panel 2 is pushed to rotate on the outside of the wall panel 1, and the first door panel 2 drives the outer rotating shaft 5 to rotate, and the outer rotating shaft 5 rotates through the outer first bevel gear 10 and the second bevel gear, and the connecting shaft 11 drives the inner rotating shaft 5 to rotate synchronously in different directions through the inner first bevel gear 10 and the second bevel gear, so that the inner second door panel 12 and the outer first door panel 2 are synchronously rotated and closed until the first door panel 2 and the second door panel 12 are respectively embedded in the opening from the outside and the inside of the wall panel 1, at this time, the first door panel 2 and the second door panel 12 press the sealing ring 14 on the convex strip 101 to form a double seal, and at this time, one end of the threaded rod 701 contacts the threaded sleeve 13, and the rotation is turned. Rod 7 drives threaded rod 701 to rotate, and threaded rod 701 is screwed into threaded sleeve 13, so that first door panel 2 and second door panel 12 are close to each other and embedded in the opening, so that sealing ring 14 is pressed on convex strip 101, and the sealing effect of the opening of wall panel 1 is improved. Finally, air between first door panel 2 and second door panel 12 can be extracted through air nozzle 8, on the one hand, vacuum is maintained between first door panel 2 and second door panel 12, and heat exchange of cold storage door panel is reduced. On the other hand, negative pressure is generated between first door panel 2 and second door panel 12, so that first door panel 2 and second door panel 12 can be adsorbed and embedded in the opening, so that first door panel 2 and second door panel 12 firmly press sealing ring 14 on convex strip 101, and the sealing effect of the opening of wall panel 1 is further improved.

[0038] When the cold storage needs to be opened, first open the valve 9 to allow external air to enter between the first door panel 2 and the second door panel 12 through the air nozzle 8, so that the air pressure between the first door panel 2 and the second door panel 12 is balanced with the external air pressure, and then rotate the rotating rod 7 in the opposite direction to screw the threaded rod 701 out of the threaded sleeve 13, so that the first door panel 2 and the second door panel 12 can be separated, and then pull the first door panel 2 on the outside to rotate the first door panel 2 open, and the second door panel 12 inside the cold storage is opened synchronously by the first bevel gear 10, the second bevel gear and the connecting shaft 11, so that both the first door panel 2 and the second door panel 12 are opened, and the goods can be transported.

[0039] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A cold storage closed door structure, characterized in that: include: A wall panel (1), wherein the wall panel (1) is provided with an opening; Two door panel mechanisms, the two door panel mechanisms are respectively arranged on the inner side and the outer side of the wall panel (1), each of the door panel mechanisms comprises a door panel, a rotating shaft (5) and a first bevel gear (10), the rotating shaft (5) is fixedly connected to one side of the door panel, and the first bevel gear (10) is fixedly connected to the rotating shaft (5); A connecting shaft (11), the connecting shaft (11) passing through the wall panel (1), the two ends of the connecting shaft (11) being fixedly connected to second bevel gears and respectively meshing with the two first bevel gears (10) so that the two rotating shafts (5) rotate synchronously in opposite directions; and a rotating rod (7) and a threaded sleeve (13), wherein the rotating rod (7) and the threaded sleeve (13) are respectively arranged on the two door panels, and a threaded rod (701) is arranged at one end of the rotating rod (7), and the threaded rod (701) can be threadedly connected with the threaded sleeve (13) so that the two door panels are close to each other and embedded in the opening.

2. A cold storage closed door structure according to claim 1, characterized in that: The two door panel mechanisms are arranged symmetrically relative to the wall panel (1).

3. A cold storage closed door structure according to claim 1, characterized in that: The two door panels are respectively a first door panel (2) and a second door panel (12); the first door panel (2) and the second door panel (12) are respectively arranged on the outer side and the inner side of the wall panel (1).

4. A cold storage closed door structure according to claim 3, characterized in that: A convex strip (101) is provided on the inner wall of the opening, and a sealing ring (14) is provided on the side where the first door panel (2) and the second door panel (12) are close to each other. The first door panel (2) and the second door panel (12) can be embedded in the opening to press the sealing ring (14) onto the convex strip (101).

5. A cold storage closed door structure according to claim 3, characterized in that: The first door panel (2) is provided with a through hole, a fixing sleeve (702) is fixedly connected to the through hole, and the rotating rod (7) is rotatably connected in the fixing sleeve (702).

6. A cold storage closed door structure according to claim 1, characterized in that: A hand wheel is provided at one end of the rotating rod (7).

7. A cold storage closed door structure according to claim 1, characterized in that: A rotating member (4) is fixedly connected to one side of the two door panels, and one end of the rotating member (4) is fixedly connected to the rotating shaft (5).

8. The cold storage closed door structure according to claim 1, characterized in that: Both sides of the wall panel (1) are fixedly connected with fixing members (3), and the end of the rotating shaft (5) is rotatably connected to the fixing members (3).

9. A cold storage closed door structure according to claim 1, characterized in that: A fixing box (6) is provided on both sides of the wall panel (1), and the first bevel gear (10) and the second bevel gear are both arranged inside the fixing box (6).

10. A cold storage closed door structure according to claim 3, characterized in that: The first door panel (2) is provided with a vent hole, an air nozzle (8) is provided at the vent hole, and a valve (9) is provided on the air nozzle (8).