Mechanical compression type airtight door

Abstract

The utility model discloses a mechanical compression type airtight door which comprises a door frame and a door leaf, the door leaf is of a hollow structure, one side of the door leaf is hinged to the door frame, the other side of the door leaf is provided with at least two sets of compression mechanisms, and the compression mechanisms are arranged in the door leaf. The pressing mechanism comprises a first fixing seat, a rotating shaft movably arranged on the first fixing seat and a shifting piece, and one end of the rotating shaft penetrates through the door leaf to be exposed and is vertically connected with the shifting piece; a pressing block is arranged at the position, corresponding to the shifting piece, of the inner wall of the door frame, the pressing block is of a trapezoidal structure, and when the door leaf is closed, the shifting piece abuts against the trapezoidal surface of the pressing block; the pressing mechanisms are connected through the transmission mechanism. The transmission mechanism has the advantages that the transmission mechanism is hidden in the door leaf, multi-point pressing is adopted, the surface of the door body can be flat and smooth, and air tightness can be guaranteed.

Description

Technical Field

[0001] The utility model belongs to the field of airtight doors, and in particular relates to a mechanically pressed airtight door. Background Art

[0002] Airtight doors are generally used in rooms with high-level airtightness requirements in high-level biosafety laboratories, nuclear power industry, ships and other facilities to solve the problem of airtight isolation between access channels in different areas of the enclosure structure. According to the sealing principle, airtight doors can be divided into inflatable airtight doors and mechanical compression airtight doors. Among them, mechanical compression airtight doors use mechanical mechanisms to compress and deform the rubber strips between the door leaf and the door frame to achieve the purpose of sealing. Mechanical compression airtight doors, which were commonly used in the nuclear industry in the early days, have reliable transmission but are relatively bulky. In the field of biosafety, due to special requirements for hygiene, the surface of the door leaf needs to be smooth and clean. For this reason, we propose a mechanical compression airtight door. Utility Model Content

[0003] The purpose of the utility model is to provide a.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] A mechanically clamped airtight door comprises a door frame and a door leaf, characterized in that: the door leaf is a hollow structure, and one side is hinged to the door frame, and the other side is provided with at least two sets of clamping mechanisms along the length direction of the door leaf, and the clamping mechanism is arranged inside the door leaf; the clamping mechanism comprises a first fixed seat, a rotating shaft movably arranged on the first fixed seat, and a paddle, one end of the rotating shaft penetrates through the door leaf to be exposed, and is vertically connected to the paddle; a clamping block is arranged at the inner wall of the door frame corresponding to the position of the paddle, and the clamping block is a trapezoidal structure, and when the door leaf is closed, the paddle abuts against the ladder surface of the clamping block; a plurality of clamping mechanisms are connected by a transmission mechanism.

[0006] Preferably, the transmission mechanism includes a first connecting rod and a second connecting rod, and a rotating block is movably arranged in the first fixed seat, both ends of the rotating block pass through the first fixed seat and are exposed, and one end is connected to the rotating shaft, and the other end is connected to the first connecting rod, and one end of several first connecting rods is eccentrically connected to the second connecting rod.

[0007] Preferably, a groove is formed at one end of the rotating block, and the first connecting rod is arranged in the groove.

[0008] Preferably, a reinforcing plate is provided in the door frame, the reinforcing plate is a C-shaped structure, and the first fixing seat is connected to the reinforcing plate.

[0009] Preferably, a second fixing seat is provided on one side of the door leaf, and the exposed end of the rotating shaft passes through the fixing seat.

[0010] Preferably, a handle is further provided at the exposed end of the rotating shaft, and the handle is connected to the rotating shaft via a rotating seat.

[0011] Preferably, a window is also provided on the door leaf.

[0012] Preferably, a sealing strip is provided at the contact portion between the door frame and the door leaf, and a mounting groove is provided on the outer side of the peripheral wall of the door frame.

[0013] The utility model has the beneficial effects that the transmission mechanism is hidden inside the door leaf and adopts multi-point compression, which can not only realize the flatness and smoothness of the door surface, but also ensure air tightness. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a structural schematic diagram of a mechanically compressed airtight door of the utility model;

[0015] Figure 2 It is a structural schematic diagram of the clamping assembly and the transmission assembly of the utility model;

[0016] Among them: door frame 10, door leaf 12, clamping mechanism 14, first fixed seat 16, rotating shaft 18, paddle 20, clamping block 22, transmission mechanism 24, first connecting rod 26, second connecting rod 28, rotating block 30, groove 32, reinforcing plate 34, second fixed seat 36, handle 38, rotating seat 40, window 42, installation groove 44. DETAILED DESCRIPTION

[0017] The technical solution of this patent is further described in detail below in conjunction with specific implementation methods.

[0018] like Figure 1 to Figure 2 As shown, a mechanically clamped airtight door of the utility model comprises a door frame 10 and a door leaf 12. The door leaf 12 is a hollow structure, and one side is hinged to the door frame 10, and the other side is provided with at least two sets of clamping mechanisms 14 along the length direction of the door leaf 12, and the clamping mechanism 14 is arranged inside the door leaf 12; the clamping mechanism 14 comprises a first fixed seat 16, a rotating shaft 18 movably arranged on the first fixed seat 16, and a paddle 20, one end of the rotating shaft 18 penetrates through the door leaf 12 to be exposed, and is vertically connected to the paddle 20; a clamping block 22 is arranged at the inner wall of the door frame 10 corresponding to the position of the paddle 20, and the clamping block 22 is a trapezoidal structure. When the door leaf 12 is closed, the paddle 20 abuts against the ladder surface of the clamping block 22; a plurality of clamping mechanisms 14 are connected by a transmission mechanism 24. When the door leaf 12 is closed, the rotating shaft 18 is rotated, and the paddles 20 of each group of the clamping mechanism 14 are driven to rotate through the transmission mechanism 24. The paddles 20 rise along the slope of the clamping block 22, so that the door leaf 12 and the door frame 10 are tightly closed.

[0019] The transmission mechanism 24 includes a first connecting rod 26 and a second connecting rod 28. A rotating block 30 is movably disposed in the first fixed seat 16. Both ends of the rotating block 30 penetrate the first fixed seat 16 and are exposed, and one end is connected to the rotating shaft 18, and the other end is connected to the first connecting rod 26. One end of the first connecting rod 26 is eccentrically connected to the second connecting rod 28. When the rotating block 30 is rotated, the first connecting rod 26 is driven to rotate, and the second connecting rod 28 is eccentrically rotated at the same time.

[0020] Furthermore, a groove 32 is formed at one end of the rotating block 30 , and the first connecting rod 26 is disposed in the groove 32 . The groove 32 limits the relative rotation between the first connecting rod 26 and the rotating block 30 .

[0021] A reinforcing plate 34 is provided in the door frame 10. The reinforcing plate 34 is a C-shaped structure, and the first fixing seat 16 is connected to the reinforcing plate 34. The provision of the reinforcing plate 34 prevents the pressing assembly from deforming the door leaf during installation and use.

[0022] A second fixing seat 36 is disposed on one side of the door leaf 12, and the exposed end of the rotating shaft 18 passes through the fixing seat.

[0023] Furthermore, a handle 38 is provided at the exposed end of the rotating shaft 18 , and the handle 38 is connected to the rotating shaft 18 via a rotating seat 40 .

[0024] A viewing window 42 is also provided on the door leaf 12, and a sealing strip (not shown) is provided at the contact portion between the door frame 10 and the door leaf 12 to improve the sealing effect between the door leaf 12 and the door frame 10. An installation groove 44 is provided on the outer side of the peripheral wall of the door frame 10 to facilitate the installation and fixation of the door frame 10.

[0025] When closing the door leaf 12, the rotating shaft 18 is rotated by the handle 38, so that the paddle 20 rotates, and the paddle 20 rises along the slope of the clamping block 22, so that the door leaf 12 and the door frame 10 are clamped; at the same time, the rotating shaft drives the rotating block 30 to rotate, and the rotating block 30 drives several clamping components to clamp the clamping block 22 through the first connecting rod 26 and the second connecting rod 28, thereby realizing multi-point clamping.

[0026] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0027] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A mechanically compressed airtight door, comprising a door frame and a door leaf, characterized in that: The door leaf is a hollow structure, and one side is hinged to the door frame, and the other side is provided with at least two sets of clamping mechanisms along the length direction of the door leaf, and the clamping mechanism is arranged inside the door leaf; the clamping mechanism includes a first fixed seat, a rotating shaft movably arranged on the first fixed seat, and a paddle, one end of the rotating shaft passes through the door leaf and is exposed, and is vertically connected to the paddle; a clamping block is arranged at the inner wall of the door frame corresponding to the position of the paddle, and the clamping block is a trapezoidal structure. When the door leaf is closed, the paddle abuts against the ladder surface of the clamping block; a plurality of clamping mechanisms are connected by a transmission mechanism.

2. A mechanically compressed airtight door according to claim 1, characterized in that: The transmission mechanism includes a first connecting rod and a second connecting rod. A rotating block is movably arranged in the first fixed seat. Both ends of the rotating block pass through the first fixed seat and are exposed, and one end is connected to the rotating shaft and the other end is connected to the first connecting rod. One end of several first connecting rods is eccentrically connected to the second connecting rod.

3. A mechanically compressed airtight door according to claim 2, characterized in that: A groove is formed at one end of the rotating block, and the first connecting rod is arranged in the groove.

4. The mechanical compression airtight door according to claim 1, characterized in that: A reinforcing plate is arranged in the door frame, the reinforcing plate is a C-shaped structure, and the first fixing seat is connected to the reinforcing plate.

5. The mechanical compression airtight door according to claim 1, characterized in that: A second fixing seat is arranged on one side of the door leaf, and the exposed end of the rotating shaft passes through the fixing seat.

6. The mechanically compressed airtight door according to claim 1, characterized in that: A handle is also provided at the exposed end of the rotating shaft, and the handle is connected to the rotating shaft through a rotating seat.

7. The mechanical compression airtight door according to claim 1, characterized in that: A window is also arranged on the door leaf.

8. The mechanical compression airtight door according to claim 1, characterized in that: A sealing strip is arranged at the contact position between the door frame and the door leaf, and a mounting groove is arranged on the outer side of the peripheral wall of the door frame.

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