CN-224214071-U - Radiation-proof airtight door

CN224214071UCN 224214071 UCN224214071 UCN 224214071UCN-224214071-U

Abstract

The utility model relates to the technical field of radiation-proof doors, in particular to a radiation-proof airtight door, which adopts a sealing ring with a groove and capable of exhausting to form a sucker-shaped adsorption door body, so that the door body is closed with labor saving and the airtight reliability is improved; the door comprises a door frame, a door body, a panel, an inner hole, a rubber ring, an outer hole and an air extractor, wherein the door opening is formed in the middle of the door frame, the door body is hinged to the door frame, the inner part of the door frame is provided with an annular air extraction channel, the panel is arranged on the front end face of the door frame, the panel is provided with a plurality of inner holes, the inner holes are communicated with the air extraction channel of the door frame, the rubber ring is arranged on the front end face of the panel, the cross section of the rubber ring is U-shaped, the middle of the front end face of the rubber ring is provided with an annular groove, the bottom of the groove of the rubber ring is provided with a plurality of outer holes, the outer holes are respectively aligned with the inner holes, the air extractor is arranged on the rear end face of the door frame, and the air extraction end of the air extractor extends into the air extraction channel of the door frame.

Inventors

WU QINGMIN
WU LINNA
WU QINGQIANG
WU ZHONG

Assignees

山东卓岳射线防护工程有限公司

Dates

Publication Date: 20260508
Application Date: 20250528

Claims (6)

1. The radiation-proof airtight door is characterized by further comprising a panel (3), an inner hole (4), a rubber ring (5), an outer hole (6) and an air extractor (7), wherein an annular air extraction channel is arranged in the door frame (1), the panel (3) is arranged on the front end face of the door frame (1), a plurality of inner holes (4) are formed in the panel (3), the inner holes (4) are communicated with the air extraction channel of the door frame (1), the rubber ring (5) is arranged on the front end face of the panel (3), the cross section of the rubber ring (5) is U-shaped, the middle of the front end face of the rubber ring (5) is an annular groove, a plurality of outer holes (6) are formed in the bottom of the groove of the rubber ring (5), the outer holes (6) are respectively aligned with the inner holes (4), the air extractor (7) is arranged on the rear end face of the door frame (1), and the air extraction end of the air extractor (7) stretches into the air extraction channel of the door frame (1).
2. A radiation protection airtight door as claimed in claim 1, further comprising a plurality of air extraction pipes (8), wherein the plurality of air extraction pipes (8) are slidably inserted into the plurality of inner holes (4) and the plurality of outer holes (6), and the plurality of air extraction pipes (8) communicate the grooves of the rubber ring (5) with the air extraction channels of the door frame (1).
3. A radiation protection airtight door as claimed in claim 2, further comprising a plurality of push rods (9), wherein fixed ends of the plurality of push rods (9) are mounted on the rear end face of the door frame (1), and output shafts of the plurality of push rods (9) are respectively connected with the plurality of exhaust pipes (8).
4. The radiation-proof airtight door according to claim 2, further comprising a plurality of strip holes (10), wherein the side walls of the plurality of exhaust pipes (8) are respectively provided with a plurality of strip holes (10), and two ends of the plurality of strip holes (10) respectively extend into the grooves of the rubber ring (5) and the exhaust channels of the door frame (1).
5. The radiation-proof airtight door according to claim 1, further comprising a plurality of slots (11), a pin holder (12), a plurality of pins (13), a shaft lever (14), a worm (15), a screw (16) and a worm wheel (17), wherein the plurality of slots (11) are mounted on the inner side wall of the door frame (1), the pin holder (12) is slidably mounted on the inner side wall of the door body (2), the plurality of pins (13) are arranged at the end part of the pin holder (12), the plurality of pins (13) are respectively aligned with the plurality of slots (11), the shaft lever (14) is rotatably mounted on the door body (2), the handle is arranged at the outer end of the shaft lever (14), the worm (15) is concentrically mounted at the inner end of the shaft lever (14), the worm wheel (16) is rotatably mounted on the inner side wall of the door body (2), the screw (16) is in threaded connection with the pin holder (12), the worm wheel (17) is concentrically mounted on the screw (16), and the worm wheel (17) is meshed with the worm (15).
6. A radiation-proof airtight door as claimed in claim 1, further comprising a ball seat (18) and balls (19), wherein the ball seat (18) is mounted on the lower end face of the door body (2), the balls (19) are rotatably mounted in the ball seat (18), and the balls (19) are in rolling contact with the ground.

Description

Radiation-proof airtight door Technical Field The utility model relates to the technical field of radiation-proof doors, in particular to a radiation-proof airtight door. Background The radiation-proof airtight door is an important isolation facility of a radiation chamber, various radiation-proof airtight doors are disclosed in the prior art, for example, a radiation-proof movable airtight door is provided in China patent publication No. CN221074012U, and comprises a door frame, a door leaf arranged in an inner cavity of the door frame and matched with the inner cavity of the door frame in shape and size, a driving assembly for driving the door leaf to axially translate along the door frame and a sliding support assembly, wherein a limiting skirt edge extending inwards is arranged at one side edge of the door frame far away from a wall body, pulleys are symmetrically arranged at two ends of the bottom surface of the door frame, rollers are symmetrically arranged at two sides of the top surface of the bottom edge of the door frame and are in rolling connection with the door frame, and the door leaf of the movable door can completely seal a door opening and effectively prevent radiation leakage along the axial movement of the door frame. Above-mentioned anti-radiation removes airtight door can set up the sealing rubber layer through on the flange when closing, perhaps set up the sealing rubber layer at the edge of door leaf, realizes the complete seal to the door opening, but the sealing rubber layer that sets up between door leaf and door frame has certain elasticity, needs very big power to extrude the sealing rubber layer for reaching better airtight effect, leads to airtight door to close hard, and the elasticity of sealing rubber layer can make the door leaf accidentally open when the lock is unexpected moreover, leads to airtight inefficacy. Disclosure of utility model In order to solve the technical problems, the utility model provides the radiation-proof airtight door which adopts the sealing ring with the groove capable of exhausting to absorb the door body in a sucker shape, so that the door body is closed in a labor-saving way and the airtight reliability is improved. The utility model relates to a radiation-proof airtight door, which comprises a door frame and a door body, wherein a door opening is arranged in the middle of the door frame, and the door body is hinged with the door frame; the air pump also comprises a panel, an inner hole, a rubber ring, an outer hole and an air pump, wherein an annular air pumping channel is arranged in the door frame, the panel is arranged on the front end face of the door frame, a plurality of inner holes are arranged on the panel and are communicated with the air pumping channel of the door frame, the rubber ring is arranged on the front end face of the panel, the section of the rubber ring is U-shaped, the middle part of the front end surface of the rubber ring is an annular groove, a plurality of outer holes are formed in the bottom of the groove of the rubber ring and are respectively aligned with the inner holes, the air extractor is arranged on the rear end surface of the door frame, and the air extracting end of the air extractor extends into the air extracting channel of the door frame; closing the front end face of the door body towards the door frame, enabling the inner end face of the door body to be tightly pressed on the front end port of the rubber ring, enabling air in the groove of the rubber ring to enter the air suction channel of the door frame through a plurality of outer holes and a plurality of inner holes and be discharged towards the rear of the door frame, enabling a space between the groove of the rubber ring and the inner end face of the door body to form negative pressure, enabling the rubber ring to be flattened to be tightly attached to the inner end face of the door body in a sucking disc shape under the action of external atmospheric pressure, reducing the force used for closing the door body, enabling the door body to be more labor-saving, after the door body is completely closed, achieving airtight closing of the door frame and the door body, enabling the air suction machine to stop, enabling the air suction channel of the door frame to keep negative pressure, enabling the rubber ring to be used as a sucking disc to firmly adsorb the door body, enabling the elastic force of the rubber ring not to spring the door body when the door lock of the door body is accidentally opened at the moment, avoiding airtight failure caused by accidental opening of the door body, enabling the valve of the air suction machine to be opened when the door body is required to be opened, enabling external air to be input into the air suction channel of the door frame to be opened, the normal pressure is restored in the groove of the rubber ring, so that the door body is opened by the elastic force restored by the rubber ring, and the door body is opene