Improved air-tight door

Abstract

The utility model relates to the technical field of air-tight doors, and discloses an improved air-tight door which comprises a door frame, a fixing column is welded to the front face of the door frame, a rotating rod is rotationally connected to the interior of the fixing column, and an air-tight door plate is welded to the left end of the rotating rod. The door is characterized in that a first sealing strip is fixedly connected to the surface of the airtight door plate, a second sealing strip is fixedly connected to the inner wall of the door frame, and a drawing handle is welded to the rear end of the airtight door plate. The first positioning bolt at the rear end of the airtight door plate is matched with the push rod to lift and slide in the fixed sleeve and the first fixed plate, and the push rod is rotated to the top of the fixed sleeve for limiting when the first positioning bolt extends to the interiors of the second sealing strip and the door frame; and a second positioning bolt arranged in a second fixing plate is inserted into a bottom positioning groove, so that after the airtight door plate is matched with the door frame to be closed, the overall connection sealing performance and connection stability are guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of airtight doors, in particular to an improved airtight door. Background Art

[0002] An airtight door is a door with high sealing performance, mainly used to prevent the penetration of air, moisture and other substances, and is widely used in places where space needs to be isolated, such as laboratories, food storage rooms, archives rooms, etc. The design and manufacture of airtight doors need to consider various factors to ensure the realization of their functions. The structure of airtight doors usually includes components such as door leaves, door frames and sealing strips. The door leaf is generally welded by flat steel plates, cross-shaped rib plates, ring beams, etc., and the door frame is composed of a frame structure made of channel steel and I-beam.

[0003] Comparative Publication No. 201720861555.4 discloses an airtight door, which includes a door frame with a door opening installed on a wall, a door body hinged in the door opening through a hinge. A cavity is arranged in the door body, and openings communicating with the cavity are arranged on two opposite sides of the door body. Lock holes are arranged at positions on the inner wall of the door opening corresponding to the openings. A lock core made of steel plate is arranged in the cavity, and the two ends of the lock core can be rotated out of the openings and placed in the lock holes. A transmission mechanism for driving the rotation of the lock core is also included. With the above technical solution, when the door body is in an openable state, the lock core is placed in the cavity; when the door body is in a locked state, the lock core is rotated so that the lock core extends out from the openings on the left and right sides of the cavity of the door body, and the door frame is provided with lock holes for accommodating the two ends of the lock core. The locking of the door body and the door frame is realized through the cooperation of the two ends of the lock core and the lock holes. Since the lock core is arranged inside the door body and is not installed on the surface of the door body through connecting parts such as screws, the defect that the door body is easily broken through due to the weak connection strength of the screws is made up for, and the lock core is made of steel plate, which improves the strength of the lock core.

[0004] For this airtight door, it is not installed on the surface of the door body through connecting parts such as screws, which makes up for the defect that the door body is easily broken through due to the weak connection strength of the screws, and the lock core is made of steel plate, which improves the strength of the lock core. However, the whole device only fixes the door panel and the door frame through the cooperation of multiple gears and a worm. Because there is only this one fixing method, gaps are likely to leak at the door frame and the door panel, affecting the overall sealing performance of the device. Content of the Utility Model

[0005] To solve the above technical problems, the utility model provides an improved airtight door.

[0006] The utility model is realized by adopting the following technical solutions: The improved airtight door includes a door frame, a fixed column is welded on the front surface of the door frame, a rotating rod is rotatably connected inside the fixed column, and a sealed door panel is welded to the left end of the rotating rod.

[0007] A first sealing strip is fixedly connected to the surface of the sealed door panel, a second sealing strip is fixedly connected to the inner wall of the door frame, a pull handle is welded to the rear end of the sealed door panel, a first fixing plate is fixedly connected to the rear side of the sealed door panel, a first positioning pin is inserted into the first fixing plate, a fixed sleeve is welded to the rear end of the sealed door panel, a push rod is fixedly connected to the surface of the first positioning pin, a second fixing plate is welded to the rear side of the sealed door panel, a second positioning pin is inserted into the second fixing plate, a bottom positioning groove is formed in the second sealing strip, and a top positioning groove is formed in the door frame.

[0008] Through the above technical solution, the number of the top positioning grooves is set to two, which can ensure the connection sealing performance between the sealed door panel and the door frame when the push rod drives the first positioning pin to extend into the top positioning groove.

[0009] As a further improvement of the above solution, the bottom positioning grooves are symmetrically distributed with the second sealing strip as the center, the top positioning grooves are symmetrically distributed with the second sealing strip as the center, and the second positioning pin penetrates through the second sealing strip and extends into the door frame.

[0010] As a further improvement of the above solution, the first positioning pin penetrates through the second sealing strip and extends into the door frame, and the first fixing plate and the fixed sleeve are symmetrically distributed with the sealed door panel as the center.

[0011] As a further improvement of the above solution, the second fixing plate and the second positioning pin are symmetrically distributed with the sealed door panel as the center, and a second positioning pin is arranged at the rear end of the sealed door panel.

[0012] As a further improvement of the above solution, a first positioning pin is arranged at the rear side of the sealed door panel, and the push rod and the first positioning pin are symmetrically distributed with the sealed door panel as the center.

[0013] As a further improvement of the above solution, the rotating rod is arranged at the rear end of the door frame, and a sealed door panel is hinged to the front of the door frame.

[0014] Through the above technical solution, the number of the rotating rods is set to several, which can conveniently rotate the sealing door panel in cooperation with the door frame.

[0015] As a further improvement of the above solution, a first sealing strip is arranged on the front of the door frame, and a sealed door panel is arranged on the front of the second sealing strip.

[0016] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0017] In the present utility model, the first positioning pin at the rear end of the airtight door panel cooperates with the push rod to perform lifting and sliding of the position height inside the fixed sleeve and the first fixing plate. When the position height of the first positioning pin extends to the inside of the second sealing strip and the door frame, the push rod is rotated to the top of the fixed sleeve for limiting. By inserting the second positioning pin inside the second fixing plate into the bottom positioning groove, after the airtight door panel is closed in cooperation with the door frame, the overall connection sealing performance and connection stability are ensured.

[0018] The present utility model has good sealing performance, low air leakage rate, and can maintain airtightness without leakage for a long time. Due to the overall use of high-quality materials and advanced processes, the airtight door has strong durability and stability. By arranging the rotating rod inside the fixed column, it is convenient for the staff to open and close the airtight door panel on the front of the door frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0020] Figure 2 is a schematic rear view structure diagram of the present utility model;

[0021] Figure 3 is a schematic diagram of the rotating structure of the airtight door panel of the present utility model;

[0022] Figure 4 is a schematic bottom view structure diagram of the present utility model;

[0023] Figure 5 is a schematic right view structure diagram of the present utility model.

[0024] MAIN SYMBOL DESCRIPTION:

[0025] 1. Door frame; 2. Fixed column; 3. Rotating rod; 4. Airtight door panel; 5. First sealing strip; 6. Second sealing strip; 7. Pull handle; 8. First fixing plate; 9. Fixed sleeve; 10. First positioning pin; 11. Push rod; 12. Second fixing plate; 13. Second positioning pin; 14. Bottom positioning groove; 15. Top positioning groove. SPECIFIC EMBODIMENTS

[0026] Next, in combination with the drawings and specific embodiments, the present utility model will be further described. It should be noted that, on the premise of no conflict, any combination of the following described embodiments or technical features can form a new embodiment. Embodiment

[0027] Please refer to Figures 1-5, the improved airtight door of this embodiment includes a door frame 1. A fixed column 2 is welded to the front of the door frame 1. A rotating rod 3 is rotatably connected inside the fixed column 2. A sealed door panel 4 is welded to the left end of the rotating rod 3;

[0028] A first sealing strip 5 is fixedly connected to the surface of the sealed door panel 4. A second sealing strip 6 is fixedly connected to the inner wall of the door frame 1. A pull handle 7 is welded to the rear end of the sealed door panel 4. A first fixing plate 8 is fixedly connected to the rear side of the sealed door panel 4. A first positioning pin 10 is inserted into the first fixing plate 8. A fixed sleeve 9 is welded to the rear end of the sealed door panel 4. A push rod 11 is fixedly connected to the surface of the first positioning pin 10. A second fixing plate 12 is welded to the rear side of the sealed door panel 4. A second positioning pin 13 is inserted into the second fixing plate 12. A bottom positioning groove 14 is formed inside the second sealing strip 6. A top positioning groove 15 is formed inside the door frame 1. By setting the first positioning pin 10 at the rear end of the sealed door panel 4 to cooperate with the push rod 11 to perform lifting and sliding of the position height inside the fixed sleeve 9 and the first fixing plate 8, when the position height of the first positioning pin 10 extends to the inside of the second sealing strip 6 and the door frame 1, rotate the push rod 11 to the top of the fixed sleeve 9 for limiting. By setting the second positioning pin 13 inside the second fixing plate 12 to be inserted into the inside of the bottom positioning groove 14, to ensure the connection sealing performance and connection stability of the whole after the sealed door panel 4 cooperates with the door frame 1 to close.

[0029] The number of the top positioning grooves 15 is set to two. When the push rod 11 drives the first positioning pin 10 to extend into the inside of the top positioning groove 15, it can ensure the connection sealing performance between the sealed door panel 4 and the door frame 1.

[0030] The bottom positioning grooves 14 are symmetrically distributed with the second sealing strip 6 as the center. The top positioning grooves 15 are symmetrically distributed with the second sealing strip 6 as the center. The second positioning pin 13 penetrates through the second sealing strip 6 and extends into the inside of the door frame 1.

[0031] The first positioning pin 10 penetrates through the second sealing strip 6 and extends into the inside of the door frame 1. The first fixing plate 8 and the fixed sleeve 9 are symmetrically distributed with the sealed door panel 4 as the center.

[0032] The second fixing plate 12 and the second positioning pin 13 are symmetrically distributed with the sealed door panel 4 as the center. The second positioning pin 13 is arranged at the rear end of the sealed door panel 4.

[0033] The first positioning pin 10 is arranged at the rear side of the sealed door panel 4. The push rod 11 and the first positioning pin 10 are symmetrically distributed with the sealed door panel 4 as the center.

[0034] The rotating rod 3 is arranged at the rear end of the door frame 1. The sealed door panel 4 is hinged to the front of the door frame 1.

[0035] The number of the rotating rods 3 is set to several, which can facilitate the rotation of the sealed door panel in cooperation with the door frame 1. By setting, the whole has good sealing performance and low air leakage rate, and can maintain airtightness without leakage for a long time. Since the whole adopts high-quality materials and advanced processes, the sealed door has strong durability and stability. By arranging the rotating rods 3 inside the fixed column 2, it is convenient for the staff to open and close the sealed door panel 4 on the front of the door frame 1.

[0036] A first sealing strip 5 is arranged on the front of the door frame 1, and a sealed door panel 4 is arranged on the front of the second sealing strip 6.

[0037] The implementation principle of the improved sealed door in the embodiment of the present application is as follows: Place the equipment in a suitable position. By arranging the first positioning pin 10 at the rear end of the sealed door panel 4 to cooperate with the push rod 11 to perform lifting and sliding of the position height inside the fixed sleeve 9 and the first fixing plate 8. When the position height of the first positioning pin 10 extends to the inside of the second sealing strip 6 and the door frame 1, rotate the push rod 11 to the top of the fixed sleeve 9 for limiting. By arranging the second positioning pin 13 inside the second fixing plate 12 to be inserted into the inside of the bottom positioning groove 14, to ensure the connection sealing performance and connection stability of the whole after the sealed door panel 4 cooperates with the door frame 1 to close. By setting, the whole has good sealing performance and low air leakage rate, and can maintain airtightness without leakage for a long time. Since the whole adopts high-quality materials and advanced processes, the sealed door has strong durability and stability. By arranging the rotating rods 3 inside the fixed column 2, it is convenient for the staff to open and close the sealed door panel 4 on the front of the door frame 1.

[0038] The above implementation manners are only the preferred implementation manners of the present invention, and cannot be used to limit the protection scope of the present invention. Any non-substantial changes and substitutions made by those skilled in the art on the basis of the present invention belong to the protection scope required by the present invention.

Claims

1. An improved sealed door, comprising a door frame (1), a fixed column (2) being welded to the front of the door frame (1), a rotating rod (3) being rotatably connected inside the fixed column (2), and a sealed door panel (4) being welded to the left end of the rotating rod (3); It is characterized in that A first sealing strip (5) is fixedly connected to the surface of the sealed door panel (4), a second sealing strip (6) is fixedly connected to the inner wall of the door frame (1), a pull-out handle (7) is welded to the rear end of the sealed door panel (4), a first fixing plate (8) is fixedly connected to the rear side of the sealed door panel (4), a first positioning pin (10) is inserted into the interior of the first fixing plate (8), a fixing sleeve (9) is welded to the rear end of the sealed door panel (4), a push rod (11) is fixedly connected to the surface of the first positioning pin (10), a second fixing plate (12) is welded to the rear side of the sealed door panel (4), a second positioning pin (13) is inserted into the interior of the second fixing plate (12), a bottom positioning groove (14) is provided inside the second sealing strip (6), and a top positioning groove (15) is provided inside the door frame (1).

2. The improved airtight door according to claim 1, characterized in that: The bottom positioning grooves (14) are symmetrically distributed with the second sealing strip (6) as the center, the top positioning grooves (15) are symmetrically distributed with the second sealing strip (6) as the center, and the second positioning pins (13) penetrate the second sealing strip (6) and extend to the inside of the door frame (1).

3. The improved airtight door according to claim 1, characterized in that: The first positioning latch (10) penetrates the second sealing strip (6) and extends to the interior of the door frame (1); the first fixing plate (8) and the fixing sleeve (9) are symmetrically distributed with the sealed door panel (4) as the center.

4. The improved airtight door according to claim 3, characterized in that: The second fixing plate (12) and the second positioning pin (13) are symmetrically distributed with the closed door panel (4) as the center, and the second positioning pin (13) is provided at the rear end of the closed door panel (4).

5. The improved airtight door according to claim 1, characterized in that: A first positioning latch (10) is provided on the rear side of the sealed door panel (4), and the push rod (11) and the first positioning latch (10) are symmetrically distributed with the sealed door panel (4) as the center.

6. The improved airtight door according to claim 5, characterized in that: The rotating rod (3) is arranged at the rear end of the door frame (1), and a sealed door panel (4) is hingedly connected to the front of the door frame (1).

7. The improved airtight door according to claim 6, characterized in that: A first sealing strip (5) is provided on the front of the door frame (1), and a sealed door panel (4) is provided on the front of the second sealing strip (6).

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