Sealing structure of cold storage door

Abstract

The utility model relates to a sealing structure of a cold storage door, which belongs to the technical field of sealing of the cold storage door and comprises a door frame and a protective door connected with the door frame through hinges, a locking device for locking is mounted in the protective door, a sealing device is mounted between the door frame and the protective door and comprises a concentric-square-shaped sealing plate arranged in the door frame, and the sealing plate is arranged in the door frame. A concentric-square-shaped sealing gasket is installed at the end, close to the concentric-square-shaped sealing plate, of the protective door, a sealing block is installed at the end, close to the sealing plate, of the protective door and located in the concentric-square-shaped sealing gasket, and multiple sets of sealing rings are installed at the end, close to the concentric-square-shaped sealing gasket, of the concentric-square-shaped sealing plate. Compared with the prior art, the sealing device has the advantages that the sealing ring is installed in the sealing groove, the sealing block is installed in the concentric-square-shaped sealing plate, the concentric-square-shaped sealing plate is extruded through the locking device and the concentric-square-shaped sealing gasket, multi-layer and multi-channel sealing is achieved, the sealing performance is improved through the double sealing structure, cold air leakage is avoided, and the sealing effect is better.

Description

Technical Field

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

[0002] Freezing and preservation are a common method for long-term storage of food. Cold storage is widely used as a large-scale freezing and preservation facility. However, energy saving of cold storage has always been a concern for people. Energy saving of cold storage is not only related to the materials used in the construction of cold storage, but also to the sealing of the cold storage door structure. At present, cold storage doors generally have the problem of poor sealing, which causes the cold air in the cold storage to leak out and waste energy.

[0003] In order to improve the heat insulation and sealing effect of the cold storage, when it is necessary to install a cold storage door sealing structure for assistance, the sealing strip is first installed on the outer wall of the cold storage door, and then the cold storage door is rotated to make the cold storage door fit with the door frame, and then the sealing strip is squeezed for sealing; but during the use of the cold storage door sealing structure, in order to install the sealing strip, a small drill or a screwdriver is needed to continuously turn the screw so that the screw passes through the sealing strip and docks with the cold storage door, and then the sealing strip is fixed to the cold storage door. However, this method of installing the sealing strip is relatively cumbersome, and when disassembling and replacing the sealing strip, special disassembly tools are needed for disassembly, which is not convenient enough. Utility Model Content

[0004] The utility model aims to solve the above technical problems and provides a sealing structure for a cold storage door.

[0005] In order to solve the above technical problems, the technical solution provided by the utility model is:

[0006] A sealing structure for a cold storage door, comprising a door frame and a protective door connected to the door frame through a hinge, a locking device is installed inside the protective door, and a sealing device is installed between the door frame and the protective door;

[0007] The sealing device includes a circular sealing plate arranged in the door frame, a circular sealing gasket is installed at one end of the protective door close to the circular sealing plate, a sealing block is installed at one end of the protective door close to the sealing plate and located in the circular sealing gasket, and the sealing block can be installed in the circular sealing plate, a plurality of groups of sealing rings are installed at one end of the circular sealing plate close to the circular sealing gasket, and a sealing groove for matching with the sealing ring is provided on the circular sealing gasket.

[0008] Preferably, the locking device includes a rotating gear, a first tooth plate and a second tooth plate meshingly connected to the rotating gear, a cavity is opened in the protective door, a slide rail for limiting the movement of the first tooth plate and the second tooth plate is installed in the cavity, a first limit block is installed at the upper end of the first tooth plate and the lower end of the second tooth plate, a connecting rod is hinged on one side of the second tooth plate, a second limit block is hinged on one end of the connecting rod, and the first limit block and the second limit block extend to the outside of the protective door.

[0009] Preferably, the door frame is provided with a limiting groove for cooperating with the first limiting block and the second limiting block.

[0010] Preferably, a movable hole for cooperating with the first limiting block and the second limiting block is provided in the protective door.

[0011] Preferably, a rotating shaft is mounted on the rotating gear and extends to the outside of the protective door, the rotating shaft and the protective door are connected via a bearing, and a rotating disk is mounted on one end of the rotating shaft away from the rotating gear.

[0012] Preferably, a support column is installed in the cavity.

[0013] After adopting the above structure, the utility model has the following advantages:

[0014] The utility model installs a sealing ring in a sealing groove, and a sealing block is installed in a circular sealing plate, so that the circular sealing pad squeezes the circular sealing plate through a locking device to achieve multi-layer and multi-channel sealing. The double sealing structure improves the sealing performance, avoids cold air leakage, and makes the sealing effect better.

[0015] The above summary is for the purpose of description only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments and features described above, further aspects, embodiments and features of the utility model will be readily apparent by reference to the accompanying drawings and the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or technical descriptions will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a structural schematic diagram of the utility model;

[0018] Figure 2 It is a structural schematic diagram of the door frame of the utility model;

[0019] Figure 3It is a structural schematic diagram of the sealing block of the utility model;

[0020] Figure 4 It is a cross-sectional view of the utility model at point AA;

[0021] Figure 5 It is a structural schematic diagram of the locking device of the utility model.

[0022] As shown in the figure: 1. Door frame; 2. Protective door; 201. Cavity; 3. Locking device; 301. Rotating gear; 302. First tooth plate; 303. Second tooth plate; 304. Slide rail; 305. First limit block; 306. Connecting rod; 307. Second limit block; 4. Sealing device; 401. Return-shaped sealing plate; 402. Return-shaped sealing pad; 403. Sealing block; 404. Sealing ring; 405. Sealing groove; 5. Limiting groove; 6. Moving hole; 7. Rotating shaft; 8. Rotating disk; 9. Support column. DETAILED DESCRIPTION

[0023] The embodiments of the present application 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 application, and cannot be understood as limiting the present application.

[0024] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0025] The utility model is further described in detail below in conjunction with the full text.

[0026] Combined with Figure 1-Figure 5 A sealing structure of a cold storage door comprises a door frame 1 and a protective door 2 connected to the door frame 1 by a hinge, the hinge is a prior art, the protective door 2 is installed in the door frame 1 by the hinge to achieve closing or opening, a locking device 3 is installed in the protective door 2, and a sealing device 4 is installed between the door frame 1 and the protective door 2;

[0027] When the utility model is implemented, Figure 1-Figure 4The sealing device 4 includes a circular sealing plate 401 arranged in the door frame 1, a circular sealing gasket 402 is installed at one end of the protective door 2 close to the circular sealing plate 401, a sealing block 403 is installed at one end of the protective door 2 close to the sealing plate 401 and located in the circular sealing gasket 402, and the sealing block 403 can be installed in the circular sealing plate 401, and a plurality of groups of sealing rings 404 are installed at one end of the circular sealing plate 401 close to the circular sealing gasket 402, and a sealing groove 405 for matching with the sealing ring 404 is provided on the circular sealing gasket 402. Specifically, the sealing ring 404 is installed in the sealing groove 405, and the sealing block 403 is installed in the circular sealing plate 401, so that the circular sealing gasket 402 can squeeze the circular sealing plate 401 through the locking device 3, so as to realize multi-layer and multi-channel sealing, and the cold air cannot leak out, so that the sealing effect is better.

[0028] When the utility model is implemented, Figure 1 , Figure 2 and Figure 5 The locking device 3 includes a rotating gear 301, a first tooth plate 302 and a second tooth plate 303 meshingly connected with the rotating gear 301, a cavity 201 is provided in the protective door 2, a slide rail 304 for limiting the movement of the first tooth plate 302 and the second tooth plate 303 is installed in the cavity 201, a first limit block 305 is installed at the upper end of the first tooth plate 302 and the lower end of the second tooth plate 303, a connecting rod 306 is hinged on one side of the second tooth plate 303, a second limit block 307 is hinged on one end of the connecting rod 306, the first limit block 305 and the second limit block 307 extend to the outside of the protective door 2, a rotating shaft 7 is installed on the rotating gear 301 and the rotating shaft 7 extends to the outside of the protective door 2, the rotating shaft 7 and the protective door 2 are connected by a bearing, and a rotating disk 8 is installed at one end of the rotating shaft 7 away from the rotating gear 301. Specifically, when the protective door 2 is rotated into the door frame 1 by the hinge, the rotating disk 8 is rotated to drive the rotating shaft 7 to rotate, and the rotating gear 301 drives the first tooth plate 302 and the second tooth plate 303 to move under the limit of the slide rail 304. In a specific implementation, the first tooth plate 302 and the second tooth plate 303 can slide by means of a slide groove and a slider, or the first tooth plate 302 and the second tooth plate 303 can be wrapped on the outside of the slide rail 304 and slide, such as the prior art, the slide rail and the slider. The first limit block 305 enters the limit groove 5, and the second tooth plate 303 slides, and drives the second limit block 307 to enter the limit groove 5 under the limitation of the movable hole 6 through the hinged connecting rod 306. The first limit block 305 and the second limit block 307 enter the limit groove 5, press the sealing device 4, and lock the protective door 2 and the door frame 1.

[0029] The door frame 1 is provided with a limiting groove 5 for cooperating with the first limiting block 305 and the second limiting block 307 .

[0030] A movable hole 6 is provided in the protective door 2 for use with the first limiting block 305 and the second limiting block 307 .

[0031] like Figure 5 A support column 9 is installed in the cavity 201 , and the support column 9 supports the cavity 201 and ensures the strength of the internal cavity 201 .

[0032] The working principle of this utility model:

[0033] The protective door 2 is rotated to the door frame 1 through the hinge, and the rotating disk 8 is rotated to drive the rotating gear 301 to drive the first tooth plate 302 and the second tooth plate 303 to move under the limit of the slide rail 304, and the first limit block 305 enters the limit groove 5, and the second tooth plate 303 slides, and through the hinged connecting rod 306, drives the second limit block 307 to enter the limit groove 5 under the limit of the moving hole 6, the first limit block 305 and the second limit block 307 enter the limit groove 5, and are installed in the sealing groove 405 through the sealing ring 404, and the sealing block 403 is installed in the return-shaped sealing plate 401, so that the return-shaped sealing gasket 402 squeezes the return-shaped sealing plate 401 through the locking device 3, and the sealing device 4 is pressed, and the protective door 2 and the door frame 1 are locked, realizing multi-layer and multi-channel sealing, and the cold air cannot leak out, so that the sealing effect is better.

[0034] The above describes the utility model and its implementation methods, which is not restrictive. What is shown in the full text is only one of the implementation methods of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it, without departing from the purpose of the invention of the utility model, they can design a structure and embodiment similar to the technical solution without creativity, which should belong to the protection scope of the utility model.

Claims

1. A sealing structure for a cold storage door, comprising a door frame (1) and a protective door (2) connected to the door frame (1) via a hinge, characterized in that: A locking device (3) is installed in the protective door (2), and a sealing device (4) is installed between the door frame (1) and the protective door (2); The sealing device (4) comprises a circular sealing plate (401) arranged in the door frame (1); a circular sealing gasket (402) is installed at one end of the protective door (2) close to the circular sealing plate (401); a sealing block (403) is installed at one end of the protective door (2) close to the sealing plate (401) and located in the circular sealing gasket (402); and the sealing block (403) can be installed in the circular sealing plate (401); and the circular sealing plate (401) is close to the circular sealing plate (401). One end of the return-shaped sealing gasket (402) is mounted with a plurality of sealing rings (404), and the return-shaped sealing gasket (402) is provided with a sealing groove (405) used in conjunction with the sealing ring (404).

2. According to the sealing structure of a cold storage door according to claim 1, it is characterized in that: The locking device (3) comprises a rotating gear (301), a first tooth plate (302) and a second tooth plate (303) meshingly connected to the rotating gear (301); a cavity (201) is provided in the protective door (2); a slide rail (304) for limiting the movement of the first tooth plate (302) and the second tooth plate (303) is installed in the cavity (201); a first limit block (305) is installed at the upper end of the first tooth plate (302) and the lower end of the second tooth plate (303); a connecting rod (306) is hingedly connected to one side of the second tooth plate (303); a second limit block (307) is hingedly connected to one end of the connecting rod (306); and the first limit block (305) and the second limit block (307) extend to the outside of the protective door (2).

3. According to the sealing structure of a cold storage door according to claim 2, it is characterized in that: The door frame (1) is provided with a limiting groove (5) for use with the first limiting block (305) and the second limiting block (307).

4. According to the sealing structure of a cold storage door according to claim 2, it is characterized in that: The protective door (2) is provided with a movable hole (6) for use with the first limiting block (305) and the second limiting block (307).

5. The sealing structure of a cold storage door according to claim 2 is characterized in that: A rotating shaft (7) is mounted on the rotating gear (301) and the rotating shaft (7) extends to the outside of the protective door (2); the rotating shaft (7) and the protective door (2) are connected via a bearing; a rotating disk (8) is mounted on one end of the rotating shaft (7) away from the rotating gear (301).

6. The sealing structure of a cold storage door according to claim 2 is characterized in that: A support column (9) is installed in the cavity (201).

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