High-airtightness nuclear sealing door

Abstract

The utility model discloses a nuclear sealing door with high air tightness, and particularly relates to the field of nuclear sealing doors, the nuclear sealing door comprises a door frame and a door body, one side of the door body is connected with a hinge lug, one end of the hinge lug is rotatably connected with a support lug, the support lug is fixed on the door frame, one side of the door body far away from the hinge lug is fixedly connected with a lock frame, and the lock frame is fixed on the door frame. A lock body is inserted into the middle of the lock frame, one end of the lock body is connected with a spring bolt, and a key is inserted into the other end of the lock body. According to the utility model, firstly, through the cooperation of the lock shafts and the lock handles, when the door body is closed, the lock handles at multiple positions can be rotated, so that the first pressing plate extrudes the door frame, and the door body at the positions of the lock handles extrudes the door frame, thereby realizing the extrusion of the first sealing gasket, improving the sealing strength between the door body and the door frame, and improving the sealing performance of the door body. And the lock handle with the first pressing plate is extruded by rotating a nut at one end of the lock shaft, the extrusion strength of the first pressing plate driving the door body to the first sealing gasket can be improved, and adjustment and use are convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of nuclear sealing doors, and more specifically, the utility model relates to a nuclear sealing door with high airtightness. Background Technique

[0002] As a new type of energy, nuclear power plants have the characteristics of environmental protection and high efficiency. However, the safety of nuclear power is of utmost importance. Since there are many rooms inside nuclear power plants, when the nuclear power plant unit is operating, the pressure values in each area need to be strictly controlled. Therefore, the partition doors between each area not only need to have sufficient strength, but also need to ensure the airtightness between each area of the nuclear power plant to protect the personal safety of workers.

[0003] The existing nuclear sealing door realizes the sealing function by installing a sealing ring at the joint where the edge of the door body fits with the door frame and squeezing the sealing ring when the door body is closed. However, when the door body is used for a long time and causes slight inclination at the rotating connection or the door body, it will cause large changes in the extrusion strength of the sealing ring at multiple positions between the door body and the door frame, thus affecting the sealing strength. Therefore, a nuclear sealing door with high airtightness is proposed. Content of the Utility Model

[0004] In order to overcome the above-mentioned defects of the prior art, the utility model provides a nuclear sealing door with high airtightness to solve the problems raised in the above background technique.

[0005] To achieve the above object, the utility model provides the following technical solution: A nuclear sealing door with high airtightness, including a door frame and a door body. One side of the door body is connected with a hinge ear, one end of the hinge ear is rotatably connected with a support ear, the support ear is fixed on the door frame, the side of the door body away from the hinge ear is fixedly connected with a lock frame, a lock body is inserted in the middle of the lock frame, one end of the lock body is connected with a lock tongue, and the other end is inserted with a key;

[0006] A lock catch is fixedly connected to a position on one side of the door frame corresponding to the lock frame. A first sealing gasket is embedded on one side around the door frame. An observation window mechanism is arranged in the middle of the door body;

[0007] Axle seats are arranged on one side around the door body. A lock shaft is inserted in the middle of the axle seat. Lock handles are arranged at both ends of the lock shaft. An adjusting ring is arranged on one side of the axle seat. A first pressing plate is fixedly connected to one end of the lock handle close to the adjusting ring. A switch indicator board is arranged on the surface of the door body corresponding to the lock handle.

[0008] Preferably, the door body and the door frame are adapted to each other. The door body is arranged on the side of the door frame close to the first sealing gasket, and the peripheral wall of the door body corresponds to the first sealing gasket.

[0009] Preferably, the latch and the lock bracket are adapted to each other, one end of the lock tongue extends into the latch, and the key is adapted to the lock body.

[0010] Preferably, the first pressing plate is arranged on the side of the door frame away from the first sealing gasket. The lock shaft penetrates through the lock handle near the adjusting ring and is sleeved with a nut, and the lock handle and the lock shaft are spline-connected.

[0011] Preferably, the shaft seat is fixed on one side of the door body. A sealing ring is sleeved in the middle of the lock shaft, and the sealing ring is arranged in the middle of the shaft seat. A limiting disc is fixedly sleeved in the middle of the lock shaft, and the limiting disc is arranged on both sides of the shaft seat.

[0012] Preferably, the observation window mechanism includes a tray embedded in the middle of the door body. One side of the tray is connected with a second pressing plate by rivets. A sight glass is arranged in the cavity between the second pressing plate and the tray, and a second sealing gasket is arranged between the sight glass and the cavity.

[0013] The technical effects and advantages of the present utility model:

[0014] Firstly, through the cooperation of multiple lock shafts and lock handles provided by the present utility model, when closing the door body, the lock handles at multiple positions can be rotated to enable the first pressing plate to press against the door frame, and the door body at the position of the lock handle to press against the door frame, thereby realizing the pressing of the first sealing gasket, so as to improve the sealing strength between the door body and the door frame. Moreover, by rotating the nut at one end of the lock shaft to press the lock handle with the first pressing plate, the pressing strength of the first pressing plate driving the door body against the first sealing gasket can be improved, which is convenient for adjustment and use;

[0015] The present utility model also facilitates observing the internal situation after closing the door body through the provided observation window mechanism. And by inserting the key into the inside of the lock body and rotating it, the lock tongue can be moved into the inside of the latch, which is convenient for locking the closed state of the door body and is convenient for use. The rotation direction of the lock handle can be conveniently judged through the switch indicator plate, and since lock handles are arranged at both ends of the lock shaft, it is convenient to close, seal and open from both the inside and outside separately, which is convenient for use;

[0016] In summary, through the mutual influence of the above multiple functions, the sealing strength of the door body after closing can be improved, and the pressing strength of the door body and the door frame against the sealing ring can be adjusted, so as to improve the sealing effect and sealing strength, which is convenient for use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is the overall structural schematic diagram of the present utility model.

[0018] Figure 2 is the top view cross-sectional structural schematic diagram of the present utility model.

[0019] Figure 3 is the present utility model Figure 2Schematic diagram of the partial enlarged structure at position A

[0020] Figure 4 Schematic diagram of the side view cross-sectional structure of the present utility model

[0021] Figure 5 For the present utility model Figure 4 Schematic diagram of the partial enlarged structure at position B

[0022] Figure 6 For the present utility model Figure 4 Schematic diagram of the partial enlarged structure at position C

[0023] Reference numerals are: 1, door frame; 2, door body; 3, hinge ear; 4, support ear; 5, lock catch; 6, lock bracket; 7, lock body; 8, lock tongue; 9, key; 10, first sealing gasket; 11, shaft seat; 12, lock shaft; 13, adjusting ring; 14, lock handle; 15, first pressing plate; 16, switch indicator plate; 17, tray; 18, second pressing plate; 19, sight glass; 20, second sealing gasket Specific embodiments

[0024] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. 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 protection scope of the present utility model

[0025] As shown in the attached Figures 1-6 A high-airtightness nuclear sealing door shown in the figure includes a door frame 1 and a door body 2. One side of the door body 2 is connected with a hinge ear 3, and one end of the hinge ear 3 is rotatably connected with a support ear 4. Through the hinge ear 3 and the support ear 4, the connection strength between the door frame 1 and the door body 2 is improved, which is convenient for rotating and opening and closing the door body 2. The support ear 4 is fixed on the door frame 1. The side of the door body 2 away from the hinge ear 3 is fixedly connected with a lock bracket 6. A lock body 7 is inserted in the middle of the lock bracket 6. One end of the lock body 7 is connected with a lock tongue 8, and the other end is inserted with a key 9. By controlling the lock body 7 to drive the lock tongue 8 to rotate with the key 9, it is convenient to lock the closing of the door body 2 and convenient to open and use

[0026] A lock catch 5 is fixedly connected to the position of the door frame 1 corresponding to the lock bracket 6 on one side. A first sealing gasket 10 is embedded on one side around the door frame 1. An observation window mechanism is arranged in the middle of the door body 2. Through the cooperation of the lock catch 5, the lock bracket 6, the lock body 7, the lock tongue 8, and the key 9, it is convenient to open, close, and lock the door body 2. And after the door body 2 is closed, the first sealing gasket 10 is squeezed by the first sealing gasket 10 to achieve a sealing effect. And through the arranged observation window mechanism, it is convenient to observe the internal state through the door body 2

[0027] Axle seats 11 are provided on all sides around the door body 2. A locking shaft 12 is inserted in the middle of the axle seat 11. Lock handles 14 are provided at both ends of the locking shaft 12. An adjusting ring 13 is provided on one side of the axle seat 11. One end of the lock handle 14 close to the adjusting ring 13 is fixedly connected with a first pressing plate 15. A switch indicator plate 16 is provided at a position on the surface of the door body 2 corresponding to the lock handle 14. Through the switch indicator plate 16, it is convenient to determine the rotation direction of the lock handle 14 and whether it is locked and closed. By rotating the lock handle 14 to drive the locking shaft 12, the first pressing plate 15 can be rotated from one side of the door body 2 to one side of the door frame 1, which can further increase the fitting strength between the door body 2 and the door frame 1, thereby adjusting the extrusion of the first sealing gasket 10 by the door body 2 and the door frame 1, further improving the sealing strength, and the adjusting ring 13 plays a role of buffering and adjusting. The distance between the two lock handles 14 can be finely adjusted to improve the use effect.

[0028] As shown in the appendix Figures 1-5 As shown, the door body 2 and the door frame 1 are adapted to each other. The door body 2 is arranged on one side of the door frame 1 close to the first sealing gasket 10. The peripheral wall of the door body 2 corresponds to the first sealing gasket 10, and the first sealing gasket 10 is extruded by the door body 2 and the door frame 1 to play a sealing role.

[0029] As shown in the appendix Figure 1 、 2 、3, the lock catch 5 and the lock bracket 6 are adapted to each other. One end of the lock tongue 8 extends into the interior of the lock catch 5. The key 9 is adapted to the lock body 7. By rotating the key 9, the lock body 7 is controlled to drive the lock tongue 8 to rotate and cooperate with the lock catch 5 to realize the closing and locking of the door body 2.

[0030] As shown in the appendix Figure 2 、 3 、5, the first pressing plate 15 is arranged on one side of the door frame 1 away from the first sealing gasket 10. The locking shaft 12 passes through the lock handle 14 close to the adjusting ring 13 and is sleeved with a nut. The lock handle 14 and the locking shaft 12 are spline-connected. By the extrusion of the first pressing plate 15 on the door frame 1, the extrusion of the first sealing gasket 10 by the door body 2 is realized, thereby improving the sealing strength.

[0031] As shown in the appendix Figure 5 As shown, the axle seat 11 is fixed on one side of the door body 2. A sealing ring is sleeved on the middle of the locking shaft 12. The sealing ring is arranged in the middle of the axle seat 11. A limiting disc is fixedly sleeved on the middle of the locking shaft 12. The limiting disc is arranged on both sides of the axle seat 11. The axle seat 11 supports and limits the locking shaft 12, seals the middle of the axle seat 11, and improves the stability of the locking shaft 12 at the same time.

[0032] As shown in the appendix Figure 6As shown in the figure, the observation window mechanism includes a tray 17 embedded in the middle of the door body 2. One side of the tray 17 is connected with a second pressing plate 18 by rivets. A cavity between the second pressing plate 18 and the tray 17 is provided with a viewing mirror 19. A second gasket 20 is arranged between the viewing mirror 19 and the cavity, which is convenient for sealing the surrounding positions of the viewing mirror 19, and is convenient for installing and fixing the viewing mirror 19, and is convenient for use.

[0033] The working principle of the present invention: When in use, insert the key 9 into the inside of the lock body 7 and rotate the lock tongue 8 to separate the lock tongue 8 from the lock catch 5, and rotate a plurality of lock handles 14 to move the first pressing plate 15 to one side of the door body 2, so that the door body 2 can be opened;

[0034] When closing, fit the door body 2 with the door frame 1, and then rotate a plurality of lock handles 14 to move the first pressing plate 15 to one side of the door frame 1, so that the door body 2 squeezes the first gasket 10, realizing the sealing between the door body 2 and the door frame 1, and improving the sealing strength at multiple positions. And by inserting the key 9 into the middle of the lock body 7 and rotating it, the lock tongue 8 is located inside the lock catch 5, and the locking function can be realized;

[0035] Through the viewing mirror 19, it is convenient to observe the internal situation without opening the door body 2, which is convenient for use;

[0036] When there is a slight inclination between the door body 2 and the door frame 1, the nut at one end of the lock shaft 12 can be rotated to squeeze the lock handle 14 with the first pressing plate 15, thereby squeezing the adjusting ring 13, so that when the first pressing plate 15 squeezes the door frame 1, the squeezing effect of the door body 2 on the first gasket 10 at this place is adjusted, realizing the function of efficient sealing.

[0037] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A hermetic nuclear sealing door, comprising a door frame (1) and a door body (2), characterized in that: One side of the door body (2) is connected with a hinge ear (3). One end of the hinge ear (3) is rotatably connected with a support ear (4), and the support ear (4) is fixed on the door frame (1). On the side of the door body (2) away from the hinge ear (3), a lock bracket (6) is fixedly connected. A lock body (7) is inserted in the middle of the lock bracket (6). One end of the lock body (7) is connected with a lock tongue (8), and the other end is inserted with a key (9). On one side of the door frame (1) corresponding to the lock bracket (6), a lock catch (5) is fixedly connected. On one side around the door frame (1), a first sealing gasket (10) is embedded. In the middle of the door body (2), an observation window mechanism is arranged. On one side around the door body (2), shaft seats (11) are arranged. A lock shaft (12) is inserted in the middle of the shaft seats (11). Lock handles (14) are arranged at both ends of the lock shaft (12). An adjusting ring (13) is arranged on one side of the shaft seat (11). One end of the lock handle (14) close to the adjusting ring (13) is fixedly connected with a first pressing plate (15). On the surface of the door body (2) corresponding to the lock handle (14), a switch indicator plate (16) is arranged.

2. The high-airtightness nuclear sealing door according to claim 1, characterized in that: The door body (2) and the door frame (1) are adapted to each other. The door body (2) is arranged on the side of the door frame (1) close to the first sealing gasket (10). The peripheral walls of the door body (2) correspond to the first sealing gasket (10).

3. The high-airtightness nuclear sealing door according to claim 1, characterized in that: The lock catch (5) and the lock bracket (6) are adapted to each other. One end of the lock tongue (8) extends into the interior of the lock catch (5). The key (9) is adapted to the lock body (7).

4. The high-airtightness nuclear sealing door according to claim 1, wherein: The first pressing plate (15) is arranged on the side of the door frame (1) away from the first sealing gasket (10). The lock shaft (12) penetrates through the lock handle (14) close to the adjusting ring (13) and is sleeved with a nut. The lock handle (14) and the lock shaft (12) are connected by splines.

5. The high-airtightness nuclear sealing door according to claim 1, characterized in that: The shaft seat (11) is fixed on one side of the door body (2). A sealing ring is sleeved in the middle of the lock shaft (12), and the sealing ring is arranged in the middle of the shaft seat (11). A limiting disc is fixedly sleeved in the middle of the lock shaft (12), and the limiting disc is arranged on both sides of the shaft seat (11).

6. The high-airtightness nuclear sealing door according to claim 1, characterized in that: The observation window mechanism includes a tray (17) embedded in the middle of the door body (2). One side of the tray (17) is connected with a second pressing plate (18) by rivets. A visual mirror (19) is arranged in the cavity between the second pressing plate (18) and the tray (17). A second sealing gasket (20) is arranged between the visual mirror (19) and the cavity.

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