Sealing structure of air-tight door

Abstract

The utility model discloses a sealing structure of an air-tight door, which comprises a door frame and a door plate, a sealing ring arranged on the door frame is arranged between the door plate and the door frame, the section of the sealing ring is round, a sealing groove is arranged on the door frame, one part of the sealing groove extends out of a notch, and the other part of the sealing groove is embedded into the groove. A cam shaft rotationally connected to the door frame is arranged on the side, back on to the door plate, of the sealing groove, a follow-up cam is arranged on the cam shaft, a pushing hole for the cam to stretch into is formed in the groove bottom of the sealing groove, and a rotating part is arranged at at least one end of the cam shaft. The sealing structure has the advantages of being easy to install, convenient to maintain, complete in overall function and high in practicability.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical seals, and more specifically, to a sealing structure for a closed door. Background Art

[0002] To strengthen the sealing performance between the door panel and the door frame, a sealing ring protruding from the end face is usually embedded in the door frame, so as to play a good sealing role when the door panel is closed. The sealing ring is mostly made of soft rubber material and is prone to aging. The aged sealing ring will weaken or lose its sealing performance and needs to be maintained and replaced.

[0003] If a large proportion of the sealing ring is exposed outside, it is easy to remove, but due to the large contact area with air, the aging speed is fast. If a small proportion of the sealing ring is exposed outside, it is not easy to remove, but due to the small contact area with air, the aging speed is slow. Based on this, the utility model provides a sealing structure for a closed door. Content of the Utility Model

[0004] The purpose of the utility model is to overcome the deficiencies in the above-mentioned prior art and provide a sealing structure for a closed door, which has the characteristics of easy installation and convenient maintenance.

[0005] To solve the above technical problems, the purpose of the utility model is realized as follows: A sealing structure for a closed door according to the utility model includes a door frame and a door panel. A sealing ring provided on the door frame is arranged between the door panel and the door frame. The cross-section of the sealing ring is circular. A sealing groove is formed on the door frame, with a part of it extending out of the notch and another part embedded in the groove. A camshaft rotatably connected to the door frame is provided on the side of the sealing groove facing away from the door panel. A cam acting as a follower is provided on the camshaft. A pushing hole for the cam to extend into is formed at the bottom of the sealing groove. At least one end of the camshaft is provided with a rotating part.

[0006] The utility model is further arranged as: A non-rotary column-shaped rotating groove is formed on the rotating part.

[0007] The utility model is further arranged as: A sinking groove for the rotating part to be buried in is formed on the door frame.

[0008] The utility model is further arranged as: The rotating part is arranged at one end of the camshaft.

[0009] The utility model is further arranged as: The rotating part is arranged on the inner side of the door frame.

[0010] To sum up, the utility model has the following beneficial effects: The sealing structure for a closed door according to the utility model not only has a small proportion of the sealing ring exposed outside, so the contact area with air is small and the aging speed is slow, but also is convenient to take out because of the matching ejection structure, and is convenient for maintenance and replacement. The overall function is perfect and the practicability is strong. Brief Description of the Drawings

[0011] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0012] Figure 2 is a schematic diagram of a partial structure of the present utility model. Detailed Description of the Preferred Embodiments

[0013] In order to enable those skilled in the art to better understand the technical solutions of the present utility model, the preferred embodiments of the present utility model will be described below in conjunction with specific embodiments. However, it should be understood that these descriptions are only for further illustrating the features and advantages of the present utility model, rather than limiting the patent requirements of the present utility model. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the scope of protection of the present utility model.

[0014] The present utility model will be further described below in conjunction with the accompanying drawings and preferred embodiments.

[0015] Embodiment 1

[0016] Referring to Figure 1 and Figure 2 As shown, a sealing structure of a sealed door according to this embodiment includes a door frame 1 and a door panel 2. A sealing ring 3 provided on the door frame is arranged between the door panel 2 and the door frame 1. The cross-section of the sealing ring 3 is circular. A sealing groove 4 is formed on the door frame 1, with a part protruding from the groove opening and another part embedded in the groove. A camshaft 5 rotatably connected to the door frame 1 is provided on the side of the sealing groove 4 facing away from the door panel. A cam 6 that follows the movement is provided on the camshaft 5. A pushing hole 7 for the cam to extend into is formed at the bottom of the sealing groove 4. A rotating part 8 is provided at one end of the camshaft 5, and a non-rotary column-shaped rotating groove 9 is formed on the rotating part 8.

[0017] Furthermore, the rotating part 8 is arranged inside the door frame 1.

[0018] In this embodiment, when the sealing ring 3 embedded in the sealing groove 4 needs to be replaced or maintained, a turning tool is inserted into the rotating groove 9 to drive the rotating part 8 to rotate. Through the transmission of the camshaft 5, the follower cam 6 will extend into the pushing hole 7 to locally push out the sealing ring embedded in the sealing groove 4. Then, a finger is passed through the pushed-out part of the sealing ring 3 to pull the sealing ring 3, and the entire sealing ring 3 can be quickly separated from the sealing groove 4.

[0019] Embodiment 2

[0020] Referring to Figure 1 and Figure 2As shown, a sealing structure of an airtight door involved in this embodiment is further configured on the basis of Embodiment 1. A sunk groove 10 for embedding the rotating part is formed on the door frame 1.

[0021] In this implementation scheme, through the setting of the sunk groove 10, it is used for burying the rotating part 8, making the side surface of the door frame 1 flat.

[0022] For the sealing structure of the airtight door involved in the present invention, not only the proportion of the part of the sealing ring exposed outside is small, so the contact area with air is small, the aging speed is slow, but also because it is equipped with an ejection structure, it is convenient to take out, easy to maintain and replace, the overall function is perfect, and the practicability is strong.

[0023] Unless otherwise clearly specified and defined, in the present invention, if there are terms such as "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., the orientation or positional relationship indicated is based on the actual orientation or positional relationship shown. It is only for the convenience of describing the present invention 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. Therefore, the terms used to describe the orientation or positional relationship in the present invention are only for illustrative purposes and cannot be understood as a limitation of this patent. For those of ordinary skill in the art, the specific meanings of the above terms can be understood in combination with the embodiments and according to the specific situation.

[0024] Unless otherwise clearly specified and defined, in the present invention, if there are terms such as "set", "connected" and "connected", they 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 direct connection, or an indirect connection through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to the specific situation.

[0025] The preferred specific embodiments of the present invention have been described in detail above. It should be understood that those of ordinary skill in the art can make many modifications and variations according to the concept of the present invention without creative labor. Therefore, all technical solutions that can be obtained by those skilled in the art in the technical field of the present invention through logical analysis, reasoning or limited experiments based on the concept of the present invention on the basis of the prior art should be within the protection scope determined by the claims.

Claims

1. A sealing structure for a closed door, comprising a door frame and a door panel, wherein a sealing ring arranged on the door frame is provided between the door panel and the door frame, and the cross section of the sealing ring is circular, and the characteristics are: The door frame is provided with a sealing groove with a portion extending out of the slot and another portion embedded in the slot. A cam shaft rotatably connected to the door frame is provided on the side of the sealing groove facing away from the door panel. The cam shaft is provided with a cam for follow-up. A push hole for the cam to extend into is provided at the bottom of the sealing groove, and a rotating portion is provided at at least one end of the cam shaft.

2. The sealing structure of the closed door according to claim 1, characterized in that: The rotating part is provided with a rotating groove in the shape of a non-rotating column.

3. The sealing structure of the closed door according to claim 1 or 2, characterized in that: The door frame is provided with a sinking groove for embedding the rotating part.

4. The sealing structure of the closed door according to claim 3, characterized in that: The rotating part is arranged at one end of the camshaft.

5. The sealing structure of the closed door according to claim 4, characterized in that: The rotating part is arranged on the inner side of the door frame.

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