Sealing door with linkage locking structure

Abstract

The utility model discloses a sealing door with a linkage locking structure, and relates to the technical field of sealing door planks, the sealing door with the linkage locking structure comprises a door frame and a sealing door plank, the sealing door plank is installed on the inner side of the door frame, the door frame is composed of a transverse plate and a side plate, and the sealing door plank is composed of a first door plank and a second door plank; the locking plates are arranged on the surface of the first door plate, the two sets of locking plates are arranged on each of the two sides of the first door plate, the locking plates on the two sides of the first door plate are connected through rotating shafts, the sealing door plate is arranged in the door frame and composed of the two door plates, and folding movement can be conducted; the locking structures are arranged outside the two sealing door plates, the folding positions of the sealing door plates can be sealed through the locking structures when the sealing door plates are closed, and therefore the sealing door plates cannot be folded, and gaps caused by loosening of the door plates under extrusion of indoor air pressure are avoided.

Description

Technical Field

[0001] This utility model relates to the field of sealing door panel technology, specifically a sealing door with a linkage locking structure. Background Technology

[0002] In frigid regions or indoor environments with high thermal insulation requirements, filling with inert gases (such as argon) can effectively reduce heat transfer. In certain specific indoor environments, such as laboratories and industrial plants, it may be necessary to fill with special gases to maintain a specific gas atmosphere or meet specific process requirements. This requires the installation of sealed doors at the entrance to enclose the interior.

[0003] Existing sealed doors are easily loosened by indoor air pressure when closed, resulting in gaps at the edges and causing internal air leakage. Therefore, we propose a sealed door with a linkage locking structure to solve the problems mentioned above. Utility Model Content

[0004] The purpose of this utility model is to provide a sealing door with a linkage locking structure to solve the problem mentioned in the background art that existing sealing doors are easily loosened by indoor air pressure when closed, resulting in gaps at the edge of the sealing door and causing internal air leakage.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a sealing door with a linkage locking structure, comprising a door frame and a sealing door panel, wherein the sealing door panel is installed on the inner side of the door frame, the door frame is composed of a horizontal plate and a side plate, and the sealing door panel is composed of a first door panel and a second door panel;

[0006] Also includes:

[0007] A locking plate is provided on the surface of the first door panel. Two sets of locking plates are provided on each side of the first door panel. The locking plates on both sides of the first door panel are connected by a pivot, and the locking plates can rotate on the surface of the first door panel via the pivot. The surface of the second door panel is provided with a through hole. One side of the surface of the locking plate is provided with a limit hole. One side of the second door panel is provided with a fixing frame. The inner side of the fixing frame is provided with a limit rod. The limit rod passes through the through hole to the other side of the second door panel and is engaged with the limit hole. The locking plates are connected by a connecting plate.

[0008] Preferably, a movable rod is provided in the middle of the inner side of the fixing frame, and the movable rod passes through the hole on the surface of the second door panel to the other side. The movable rod is provided with an external thread, and the movable rod is fixed to the surface of the second door panel by a threaded connection of a locking nut, and the locking nut is located on the other side of the second door panel.

[0009] Preferably, the first door plate and the side plate are connected by a hinge, and the first door plate and the second door plate are connected by a hinge.

[0010] Preferably, a handle is arranged on the side of the moving rod away from the fixing frame.

[0011] Preferably, sealing gaskets are attached to the contact surfaces of the door frame and the sealing door plate, and sealing gaskets are attached to the contact surfaces of the first door plate and the second door plate.

[0012] Preferably, a fitting frame is arranged on the surface of the second door plate, and the locking plate is movably fitted on the upper end of the fitting frame.

[0013] Preferably, a movable slot is arranged on the outer side of the horizontal plate, a sliding groove is arranged at the bottom of the movable slot, a sliding block is installed in the movable slot, pulleys are arranged on the two sides of the sliding block, a connecting shaft is arranged at the bottom of the sliding block, the connecting shaft passes through the sliding groove and is connected with the second door plate, and the sliding block rotates on the upper end of the second door plate through the connecting shaft.

[0014] Compared with the prior art, the utility model has the advantages that:

[0015] The sealing door plate is composed of two door plates and can be folded, the locking structure is arranged on the outside of the two sealing door plates, the folding part of the sealing door plate can be closed by the locking structure when the sealing door plate is closed, so that the sealing door plate cannot be folded, and the door plate will not be loosened to form a gap under the extrusion of indoor air pressure, the locking structure is composed of a locking plate, a fitting frame and a limiting rod structure, the locking plate is fixed on the first door plate, the limiting rod and the fitting frame are fixed on the second door plate, the fixing frame is moved outward by the limiting rod through the handle, the limiting rod extends out of the through hole, the locking plate is turned over and clamped on the fitting frame outside the second door plate when the sealing door plate is closed, the fixing frame and the limiting rod are moved inward by pulling the moving rod inward, the limiting rod passes through the through hole and the limiting hole to limit and fix the locking plate, and the locking plate will not be turned over, so that the locking plate is used for fixing the closed door plate. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a front view of the overall structure of the utility model;

[0017] Figure 2 It is a back view of the overall structure of the utility model;

[0018] Figure 3 It is a top view of the locking structure of the utility model;

[0019] Figure 4 It is a sliding and clamping diagram of the second door plate and the horizontal plate of the utility model;

[0020] In the figure: 1, door frame; 2, horizontal plate; 3, side plate; 4, first door plate; 5, second door plate; 6, sealing door plate; 7, fitting frame; 8, locking plate; 9, connecting plate; 10, handle; 11, external thread; 12, locking nut; 13, fixing frame; 14, limiting rod; 15, moving rod; 16, movable slot; 17, sliding slot; 18, sliding block; 19, through hole; 20, limiting hole. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments.

[0022] The utility model provides a kind of sealing door with linkage locking structure, the device includes door frame 1 and sealing door plate 6, sealing door plate 6 is installed in the inner side of door frame 1, door frame 1 is made of horizontal plate 2 and side plate 3, sealing door plate 6 is made of first door plate 4 and second door plate 5.The utility model mainly solves the problem that existing sealing door is easily pushed loose by indoor air pressure when closing, so that gap is generated in the edge of sealing door, leading to the problem of internal air leakage.

[0023] For the device provided by the utility model, please refer to Figures 1-4 , specific introduction is made as follows.

[0024] The locking plate 8 is arranged on the surface of the first door plate 4, and two groups of locking plates 8 are arranged on both sides of the first door plate 4, the locking plates 8 on both sides of the first door plate 4 are connected through a rotating shaft, the locking plate 8 rotates on the surface of the first door plate 4 through the rotating shaft, the surface of the second door plate 5 is provided with a through hole 19, one side of the surface of the locking plate 8 is provided with a limiting hole 20, one side of the second door plate 5 is provided with a fixing frame 13, the inner side of the fixing frame 13 is provided with a limiting rod 14, the limiting rod 14 passes through the other side of the second door plate 5 through the through hole 19, and the limiting rod 14 is clamped and connected with the limiting hole 20, the locking plates 8 are connected through the connecting plate 9, the inner side of the middle of the fixing frame 13 is provided with a moving rod 15, and the moving rod 15 passes through the other side of the surface of the second door plate 5 through the hole, the outer side of the moving rod 15 is provided with an external thread 11, the moving rod 15 is fixed on the surface of the second door plate 5 through the threaded connection of the locking nut 12, and the locking nut 12 is located on the other side of the second door plate 5, the fixing frame 13 and the limiting rod 14 are installed and fixed by using the moving rod 15 and the locking nut 12, so that the fixing frame 13 is conveniently moved, the first door plate 4 and the side plate 3 are connected through a hinge, the first door plate 4 and the second door plate 5 are connected through a hinge, so that the first door plate 4 and the second door plate 5 can be folded in the door frame 1, the side of the moving rod 15 away from the fixing frame 13 is provided with a handle 10, so as to conveniently hold the handle 10 to pull or push the moving rod 15, the contact surfaces of the door frame 1 and the sealing door plate 6 are all adhered with sealing pads, and the contact surfaces of the first door plate 4 and the second door plate 5 are adhered with sealing pads, so as to reduce the gap between the sealing door plate 6 and the door frame 1, thereby improving the sealing performance, the surface of the second door plate 5 is provided with a fitting frame 7, and the locking plate 8 is movably fitted on the upper end of the fitting frame 7, so as to limit the movement range of the locking plate 8, and the limiting hole 20 on the surface of the locking plate 8 is aligned with the through hole 19.

[0025] Further, the outer side of the horizontal plate 2 is provided with a movable groove 16, the bottom of the movable groove 16 is provided with a sliding groove 17, the movable groove 16 is internally provided with a sliding block 18, the sliding block 18 is provided with a pulley on both sides, the bottom of the sliding block 18 is provided with a connecting shaft, the connecting shaft passes through the sliding groove 17 and is connected with the second door plate 5, and the sliding block 18 rotates on the upper end of the second door plate 5 through the connecting shaft, so as to conveniently open and close the second door plate 5.

[0026] It is apparent for a person skilled in the art that the present application is not restricted to the details of the above exemplary embodiments, but that it can be implemented in other concrete forms without departing from the spirit or the essential characteristics of the present application. Therefore, the embodiments should be considered as exemplary only, and not limiting, the scope of the present application being defined by the appended claims rather than the above description, and all changes coming within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference signs in the claims should not be construed as limiting the claims concerned.

Claims

1. A sealing door with linkage locking structure, comprising a door frame (1) and a sealing door plate (6), the sealing door plate (6) is installed on the inner side of the door frame (1), the door frame (1) is composed of a horizontal plate (2) and a side plate (3), the sealing door plate (6) is composed of a first door plate (4) and a second door plate (5); characterized in that Further comprising: A locking plate (8) is arranged on the surface of the first door plate (4), two groups of locking plates (8) are arranged on both sides of the first door plate (4), the locking plates (8) on both sides of the first door plate (4) are connected through a rotating shaft, and the locking plates (8) rotate on the surface of the first door plate (4) through the rotating shaft, a through hole (19) is arranged on the surface of the second door plate (5), a limiting hole (20) is arranged on one side of the surface of the locking plate (8), a fixing frame (13) is arranged on one side of the second door plate (5), a limiting rod (14) is arranged on the inner side of the fixing frame (13), the limiting rod (14) passes through the other side of the second door plate (5) through the through hole (19), and the limiting rod (14) is connected with the limiting hole (20) in a clamping manner, and the locking plates (8) are connected through a connecting plate (9).

2. The sealing door with linkage locking structure according to claim 1, characterized in that: A moving rod (15) is arranged on the inner side of the fixing frame (13), and the moving rod (15) passes through the other side of the second door plate (5) through the hole on the surface of the second door plate (5), an external thread (11) is arranged on the outer side of the moving rod (15), the moving rod (15) is fixed on the surface of the second door plate (5) through the threaded connection of a locking nut (12), and the locking nut (12) is located on the other side of the second door plate (5).

3. The sealing door with linkage locking structure according to claim 1, characterized in that: The first door plate (4) and the side plate (3) are connected through a hinge, and the first door plate (4) and the second door plate (5) are connected through a hinge.

4. The sealing door with linkage locking structure according to claim 2, characterized in that: A handle (10) is arranged on the side of the moving rod (15) away from the fixing frame (13).

5. The sealing door with linkage locking structure according to claim 1, characterized in that: Sealing gaskets are adhered to the contact surfaces of the door frame (1) and the sealing door plate (6), and sealing gaskets are adhered to the contact surfaces of the first door plate (4) and the second door plate (5).

6. The sealing door with linkage locking structure according to claim 1, characterized in that: A fitting frame (7) is arranged on the surface of the second door plate (5), and the locking plates (8) are movably fitted on the upper end of the fitting frame (7).

7. The sealing door with linkage locking structure according to claim 1, characterized in that: An activity groove (16) is arranged on the outer side of the horizontal plate (2), a sliding groove (17) is arranged on the bottom of the activity groove (16), a sliding block (18) is arranged in the activity groove (16), sliding wheels are arranged on both sides of the sliding block (18), a connecting shaft is arranged on the bottom of the sliding block (18), the connecting shaft passes through the sliding groove (17) and is connected with the second door plate (5), and the sliding block (18) rotates on the upper end of the second door plate (5) through the connecting shaft.

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