High-leakproofness protective air-tight door

Abstract

The utility model discloses a high-sealing-performance protective air-tight door, belongs to the technical field of protective door structures, and aims to provide a high-sealing-performance protective air-tight door with more uniform and stable sealing performance, the high-sealing-performance protective air-tight door comprises a door body and a door frame which are matched with each other, and the door body comprises a wedging plate and a pressing plate which are integrated; the edge of the end, back on to the pressing plate, of the wedging plate is fixedly connected with a first-stage sealing ring, the end face, opposite to the wedging plate, of the pressing plate is provided with a second-stage sealing ring, the second-stage sealing ring surrounds the wedging plate, the inner wall of the door frame is provided with a first-stage wedging groove and a second-stage wedging groove, and the first-stage sealing ring is suitable for being attached to the inner wall of the first-stage wedging groove. The secondary sealing ring is suitable for being attached to the inner wall of the secondary wedging groove. The inclined attaching faces are designed on the edge of the end of the first-stage sealing ring, and the inner wall of the first-stage wedging groove of the door frame is provided with the corresponding inclined faces, so that when a door is closed, all the inclined attaching faces of the first-stage sealing ring can be almost attached to the first-stage wedging groove at the same time, stress of the sealing ring in the door closing process is more uniform, and the problem of local wrinkles is not prone to occurring.

Description

Technical Field

[0001] This application relates to the field of protective door structure technology, and in particular to a highly airtight protective door. Background Technology

[0002] Existing security doors achieve their sealing function through rubber components on the inner wall of the door frame facing the edge of the door body. However, for security doors with an opening mechanism, the side of the door body closest to the pivot point comes into contact with the rubber components first during the closing process, causing them to deform. The rubber components that are compressed first may develop wrinkles, reducing their adhesion to the door body. Compared to other parts that are subjected to uniform force, the sealing effect of the compressed parts will decrease. Summary of the Invention

[0003] The purpose of this application is to provide a high-sealing protective airtight door with more uniform and stable sealing performance.

[0004] To achieve the above objectives, this application provides a high-sealing protective airtight door: comprising a door body and a door frame that cooperate with each other. The door body includes an integral mating plate and a pressing plate. A primary sealing ring is fixedly connected to one end edge of the mating plate facing away from the pressing plate. A secondary sealing ring is provided on the end face of the pressing plate facing the mating plate, and the secondary sealing ring surrounds the mating plate. A primary mating groove and a secondary mating groove are formed on the inner wall of the door frame. The primary sealing ring is adapted to fit against the inner wall of the primary mating groove, and the secondary sealing ring is adapted to fit against the inner wall of the secondary mating groove. The door body and the door frame have a two-stage sealing structure, resulting in higher sealing performance.

[0005] As a preferred embodiment, the end face of the primary sealing ring facing away from the mating plate has an inclined surface between it and the outer side. The inner wall of the primary mating groove is inclined, which is suitable for close contact with the inclined surface. This avoids premature local pressure on the primary sealing ring during the closing process and reduces the probability of uneven deformation.

[0006] As a preferred embodiment, the edge of the mating plate facing away from the pressing plate has a stepped groove, and the end face of the primary sealing ring facing the mating plate has an engaging strip, which is suitable for engaging with the stepped groove and serves as a rubber seal to wrap around the end edge of the mating plate.

[0007] As a preferred embodiment, the pressing plate has an embedded groove on its end face facing the mating plate. The embedded groove extends inward along the outer side of the mating plate, and the secondary sealing ring embedded in the embedded groove is adapted to be blocked by the mating plate, which can effectively ensure the installation stability of the secondary sealing ring.

[0008] As a preferred embodiment, the inner wall of the door frame is also provided with three-level fitting grooves, which are suitable for fitting with the pressing plate, so that when the protective sealing door is closed, the end face of the door body and the door frame can remain flush.

[0009] As a preferred embodiment, the internal dimensions of the primary mating groove, the secondary mating groove, and the tertiary mating groove increase sequentially, corresponding to the sequentially increasing dimensions of the mating plate, the secondary sealing ring, and the pressing plate.

[0010] As a preferred embodiment, a clearance groove is provided on one side of the door frame, and a hinge shaft is inserted into the clearance groove of the door frame. A bushing is provided on one side of the pressing plate, which is suitable for cooperating with the hinge shaft to form a rotating pair, and the door body and the door frame form an opening form.

[0011] As a preferred embodiment, the end face of the pressing plate facing away from the fitting plate has a lock body mounting opening, which penetrates the side of the pressing plate away from the bushing, ensuring that the protruding lock head can restrict the movement of the door body relative to the door frame.

[0012] Compared with the prior art, the beneficial effects of this application are as follows:

[0013] (1) By designing a two-stage sealing joint on the end face of the door body facing the door frame, a double-layer sealed surface is formed with the door frame after the door is closed, so that the protective sealing door has higher sealing performance.

[0014] (2) By designing a beveled edge on the end edge of the primary sealing ring and making the inner wall of the primary fitting groove of the door frame have a corresponding bevel, the beveled edges of the primary sealing ring can fit into the primary fitting groove almost simultaneously when the door is closed. The primary sealing ring is subjected to more uniform force during the closing process, and it is less likely to have local wrinkles. The seals can remain stable for a long time. Attached Figure Description

[0015] Figure 1 This is a three-dimensional schematic diagram of the overall structure of the highly airtight protective door.

[0016] Figure 2 This is a three-dimensional sectional view of the door body of the highly airtight protective door.

[0017] Figure 3 For this highly sealed protective airtight door Figure 2 A magnified view of part A.

[0018] Figure 4 For this highly sealed protective airtight door Figure 2 A magnified view of section B.

[0019] Figure 5 This is a three-dimensional structural diagram of the primary sealing ring of the high-sealing protective airtight door.

[0020] Figure 6 This is a three-dimensional cross-sectional view of the primary sealing ring of the high-sealing protective airtight door.

[0021] Figure 7 This is a three-dimensional structural diagram of the door frame of the highly airtight protective door.

[0022] Figure 8 This is a three-dimensional structural diagram of the door body and door frame of this highly airtight protective door.

[0023] In the diagram: 1. Door body; 101. Fitting plate; 102. Pressing plate; 103. Step groove; 104. Embedded groove; 105. Bushing; 106. Lock body mounting port; 2. Door frame; 201. Clearance groove; 202. Hinge shaft; 203. Primary fitting groove; 204. Secondary fitting groove; 205. Tertiary fitting groove; 3. Primary sealing ring; 301. Angled surface; 302. Engaging strip; 4. Secondary sealing ring. Detailed Implementation

[0024] The present application will be further described below with reference to specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0025] In the description of this application, it should be noted that the directional terms such as "center", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", and "counterclockwise" indicate the orientation and positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. They should not be construed as limiting the specific protection scope of this application.

[0026] It should be noted that the terms "first," "second," etc., in the specification and claims of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

[0027] The terms “comprising” and “having”, and any variations thereof, in the specification and claims of this application are intended to cover non-exclusive inclusion, for example, a process, method, system, product, or device that includes a series of steps or units is not necessarily limited to those steps or units that are explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to such process, method, product, or device.

[0028] like Figure 1-8The high-sealing protective airtight door shown includes a door body 1 and a door frame 2 that cooperate with each other. The door frame 2 is slightly larger than the door body 1. One side of the pressing plate 102 has a protruding bushing 105. A relief groove 201 is provided on one side of the door frame 2 to accommodate the bushing 105. A hinge shaft 202 is inserted into the relief groove 201 of the door frame 2, passing through the hinge shaft 202 and cooperating to form a rotating pair. A lock body mounting port 106 is provided on the end face of the pressing plate 102 facing away from the fitting plate 101 for installing the lock cylinder and door handle and other structures. The lock body mounting port 106 penetrates the side of the pressing plate 102 away from the bushing 105. In this way, after the lock head extends out from the lock body mounting port 106, it can restrict the movement of the door body 1 relative to the door frame 2 and realize the locking function.

[0029] The inner wall of the door frame 2 is provided with a primary mating groove 203 and a secondary mating groove 204. The size of the primary mating groove 203 is significantly smaller than that of the secondary mating groove 204, and the primary mating groove 203 is completely located within the secondary mating groove 204. The door body 1 includes an integral mating plate 101 and a pressing plate 102. The diagonal length of the mating plate 101 is also significantly smaller than that of the pressing plate 102, and the mating plate 101 is completely located within the side of the pressing plate 102. A primary sealing ring 3 is fixedly connected to the edge of the mating plate 101 facing away from the pressing plate 102. Specifically: the edge of the mating plate 101 facing away from the pressing plate 102 is provided with a primary sealing ring 3. A stepped groove 103 is provided. The end face of the primary sealing ring 3 facing the mating plate 101 has a locking strip 302 for mating with the stepped groove 103. Normally, the primary sealing ring 3 is fixedly connected to the inner wall of the stepped groove 103 by applying a curing adhesive. The primary sealing ring 3 also fits against the inner wall of the primary mating groove 203. In order to avoid the primary sealing ring 3 being squeezed and deformed irregularly during the fitting process, there is a beveled surface 301 between the end face of the primary sealing ring 3 facing away from the mating plate 101 and the outer side. The inner wall of the corresponding primary mating groove 203 is also beveled, which is used to fit tightly with the beveled surface 301 to form a continuous closed sealing surface.

[0030] A secondary sealing ring 4 is provided on the end face of the pressing plate 102 facing the mating plate 101. In this embodiment, both the primary sealing ring 3 and the secondary sealing ring 4 are rectangular. The secondary sealing ring 4 can fit against the inner wall of the secondary mating groove 204 to form another continuous and closed sealing surface. An embedded groove 104 is provided on the end face of the pressing plate 102 facing the mating plate 101. The embedded groove 104 extends inward along the outer side of the mating plate 101. That is, the inner wall size of the embedded groove 104 is smaller than the outer side size of the mating plate 101. In this way, the secondary sealing ring 4 embedded in the embedded groove 104 surrounds the mating plate 101 and can also be blocked by the mating plate 101. Therefore, the secondary sealing ring 4 can maintain good installation stability without the use of curing adhesive.

[0031] The inner wall of the door frame 2 is also provided with a three-level mating groove 205 for mating with the pressing plate 102. In this way, when the door is closed, the two end faces of the door body 1 and the door frame 2 can remain flush. In fact, the internal dimensions of the first-level mating groove 203, the second-level mating groove 204 and the third-level mating groove 205 increase in sequence, corresponding to the dimensions of the mating plate 101, the second-level sealing ring 4 and the pressing plate 102 increasing in sequence.

[0032] Working principle: When the protective airtight door is closed, the rectangular primary sealing ring 3 and secondary sealing ring 4 will fit tightly against different inner walls of the door frame 2. Since the edge of the primary sealing ring 3 is a beveled surface 301, as the door body 1 approaches the door frame 2, the beveled surface 301 of the primary sealing ring 3 fits almost simultaneously against the beveled inner wall of the primary mating groove 203 at various positions. This can avoid the problem of loose fit caused by premature deformation of the sealing ring due to pressure in some positions.

[0033] The basic principles, main features, and advantages of this application have been described above. Those skilled in the art should understand that this application is not limited to the above embodiments. The embodiments and descriptions in the specification are merely the principles of this application. Various changes and modifications can be made to this application without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection claimed by this application is defined by the appended claims and their equivalents.

Claims

1. A high-seal-protection security door, characterized in that: The utility model provides a door and door frame structure, which comprises a door body (1) and a door frame (2) matched with each other, the door body (1) comprises an integrated fitting plate (101) and a pressing plate (102), a primary sealing ring (3) is fixedly connected to the end edge of the fitting plate (101) away from the pressing plate (102), a secondary sealing ring (4) is arranged on the end face of the pressing plate (102) opposite to the fitting plate (101), the secondary sealing ring (4) surrounds the fitting plate (101), a primary fitting groove (203) and a secondary fitting groove (204) are formed in the inner wall of the door frame (2), the primary sealing ring (3) is adapted to be attached to the inner wall of the primary fitting groove (203), and the secondary sealing ring (4) is adapted to be attached to the inner wall of the secondary fitting groove (204).

2. The high containment containment door of claim 1, wherein: The end face of the primary sealing ring (3) away from the fitting plate (101) is provided with an inclined attachment surface (301) between the outer side surface, and the inner wall of the primary fitting groove (203) is an inclined surface adapted to be closely attached to the inclined attachment surface (301).

3. The high containment containment door of claim 2, wherein: The end edge of the fitting plate (101) away from the pressing plate (102) is provided with a stepped groove (103), and the end face of the primary sealing ring (3) opposite to the fitting plate (101) is provided with a clamping strip (302) adapted to be fitted with the stepped groove (103).

4. The high containment containment door of claim 3, wherein: The end face of the pressing plate (102) opposite to the fitting plate (101) is provided with an embedded groove (104) extending inwards along the outer side surface of the fitting plate (101), and the secondary sealing ring (4) embedded in the embedded groove (104) is adapted to be blocked by the fitting plate (101).

5. The high containment containment door of claim 4, wherein: The inner wall of the door frame (2) is further provided with a tertiary fitting groove (205) adapted to be fitted with the pressing plate (102).

6. The high containment containment door of claim 5, wherein: The internal dimensions of the primary fitting groove (203), the secondary fitting groove (204) and the tertiary fitting groove (205) increase in sequence.

7. The high containment containment door of any one of claims 1-6, wherein: One side of the door frame (2) is provided with a clearance groove (201), the door frame (2) is inserted with a hinge shaft (202) in the clearance groove (201), one side of the pressing plate (102) is provided with a shaft sleeve (105) adapted to cooperate with the hinge shaft (202) to form a rotating pair.

8. The high containment containment door of claim 7, wherein: The end face of the pressing plate (102) away from the fitting plate (101) is provided with a lock body arrangement opening (106) penetrating through the side face of the pressing plate (102) away from the shaft sleeve (105).

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