A silent radiation-proof shielding door

Abstract

The present invention discloses a silent radiation-proof shielding door, comprising: a door body and a door frame, wherein the door body is a multi-layer structure, comprising: a sound insulation layer, which is arranged in the door body; a radiation-proof layer, which is integrally connected with the sound insulation layer and is arranged inside the door body; an observation window is arranged in the middle of the door body; a moving device is arranged at the top and bottom of the door body; the door body is installed in a slide groove of the door frame and moves under the control of a motor, and a sealing device is arranged at the closed end surface of the door body and the door frame. The device adds a radiation-proof layer and a sound insulation layer in the door body, so that the shielding door has radiation-proof and sound-proof functions while making the door body lightweight. A sealing device is arranged at the end surface on one side where the door body and the door frame are closed, so that no loud sound is emitted when the shielding door is closed, and the sealing device can prevent radiation leakage.

Description

Technical Field

[0001] The invention relates to the field of medical isolation doors, and in particular to a silent radiation-proof shielding door. Background Art

[0002] When performing MRI treatment or other radioactive detection in the hospital, in order to prevent radiation leakage and external sound from affecting the detection, radiation-proof doors and shielding doors will be installed. In order to prevent radiation leakage and external sound from entering, most of the existing radiation-proof shielding doors are designed to be relatively heavy, generally 200kg-500kg, in order to meet the requirements of medical sliding automatic doors. Publication No. CN 213016075 U provides an x-ray fast-opening radiation-proof door with a silent and wear-resistant device at the bottom, but the door body itself is still heavy, and the required motor drive power is also relatively large. When the motor works under a large load, the connecting push part is easily damaged, and noise is still generated, which affects the opening and closing speed of the shielding door. Summary of the invention

[0003] The purpose of the present invention is to solve the shortcomings of the prior art and propose a silent radiation shielding door, comprising: a door body and a door frame, wherein the door body is a multi-layer structure, including:

[0004] A sound insulation layer is arranged in the door body;

[0005] An anti-radiation layer is integrally connected with the sound insulation layer and is arranged inside the door body to make the door body lightweight;

[0006] An observation window is provided in the middle of the door body;

[0007] The top and bottom of the door body are both provided with moving devices;

[0008] The door body is installed in the sliding groove of the door frame and moves under the control of the motor. The closed end surfaces of the door body and the door frame are provided with a sealing device.

[0009] As a further description of the above technical solution: the sealing device includes a plurality of sealing strips arranged on the door body and a groove arranged on the door frame, and the groove is adapted to the shape of the sealing strip.

[0010] As a further description of the above technical solution: the moving device includes a connecting hole arranged at the top of the door body, the motor is installed in the wall, the motor drives the screw to rotate, the screw engages with the connecting hole to realize the movement of the door body, and the bottom of the door body is provided with a roller for assisting the movement.

[0011] As a further description of the above technical solution: a sensing device is provided on the outer side of the door frame.

[0012] As a further description of the above technical solution: a backup battery is provided in the door frame, and the backup battery is connected to the motor and the induction device.

[0013] As a further description of the above technical solution: a control device is provided on the door frame for controlling the operation of the motor.

[0014] As a further description of the above technical solution: the material of the door body and the door frame is stainless steel.

[0015] As a further description of the above technical solution: the material of the radiation protection layer is lead plate.

[0016] As a further description of the above technical solution: the material of the sound insulation layer is fiberboard.

[0017] As a further description of the above technical solution: the material of the observation window is Flint glass.

[0018] The above technical solution has the following advantages or beneficial effects:

[0019] 1. By adding an anti-radiation layer and a sound insulation layer in the door body, the shielding door has the functions of radiation protection and sound insulation while making the door body lightweight.

[0020] 2. On the basis of lightweight door body, a brushless motor is adopted, which has large torque and strong driving force. When pushing the shielding door to move, no noise will be generated due to heavy load.

[0021] 3. The moving speed of the shielding door when opening and closing is controlled by the control device to realize variable speed control, so that the shielding door slows down when closing and does not make a loud noise.

[0022] 4. A sealing device is provided on the end face of the door body and the door frame on one side where the door is closed, so that no loud noise is made when the shielding door is closed. At the same time, the sealing device can prevent radiation leakage.

[0023] 5. Equipped with a sensing device, when the presence of personnel is detected, the motor can be operated through the control device to realize automatic opening and closing of the shielding door. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 The overall structural diagram of the shielding door proposed by the present invention;

[0025] Figure 2 A front view of the overall structure of the shielding door proposed by the present invention;

[0026] Figure 3 for Figure 2 Sectional view at A in the middle;

[0027] Figure 4A three-dimensional diagram of the screen door proposed by the present invention;

[0028] Figure 5 A schematic diagram of the moving state of the shielding door proposed by the present invention;

[0029] Figure 6 A cross-sectional view of a door frame of the shielding door proposed by the present invention;

[0030] Figure 7 This is a cross-sectional view of the shielding door proposed by the present invention.

[0031] Legend:

[0032] 1. Door body; 2. Door frame; 3. Sound insulation layer; 4. Radiation protection layer; 5. Observation window; 6. Motor; 7. Sealing strip; 8. Groove; 9. Connecting hole; 10. Screw; 11. Roller; 12. Induction device; 13. Backup battery; 14. Control device. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] Reference Figure 1-Figure 5 , an embodiment provided by the present invention: a silent radiation shielding door, comprising: a door body 1 and a door frame 2, the door body 1 is a multi-layer structure, including;

[0035] A sound insulation layer 3 is arranged inside the door body 1;

[0036] The radiation protection layer 4 is integrally connected with the sound insulation layer 3 and is arranged inside the door body 1, so as to make the door body 1 lightweight;

[0037] An observation window 5 is provided in the middle of the door body 1;

[0038] The top and bottom of the door body 1 are provided with moving devices;

[0039] The door body 1 is installed in the sliding groove of the door frame 2 and moves under the control of the motor 6. The closed end surfaces of the door body 1 and the door frame 2 are provided with a sealing device.

[0040] By arranging a sound insulation layer 3 and an anti-radiation layer 4 inside the door body 1, the door body 1 is made lightweight. In the present embodiment, the weight of the door body 1 is 70kg-90kg. An observation window 5 can be installed on the door body 1 to facilitate observation of the patient's condition. The door body 1 is installed in the slide groove of the door frame 2, so that the motor 6 controls the movement of the door body 1 along the slide groove direction. The motor 6 is a brushless motor with high efficiency, large torque and long life. On the basis of lightweight door body 1, the motor 6 can select a smaller power to reduce noise generation. The operating power of the whole machine is less than 150w.

[0041] Furthermore, the sealing device includes a plurality of sealing strips 7 arranged on the door body 1 and a groove 8 arranged on the door frame 2 , and the shape of the groove 8 is adapted to that of the sealing strip 7 .

[0042] By providing a sealing device on the end face where the door body 1 and the door frame 2 are closed, the groove 8 is adapted to the shape of the sealing strip 7, so that the door body 1 and the door frame 2 fit tightly, and the sealing device can prevent radiation leakage and sound propagation outward.

[0043] Furthermore, the moving device includes a connecting hole 9 arranged at the top of the door body 1, and a motor 6 is installed in the wall. The motor 6 drives the screw 10 to rotate, and the screw 10 engages with the connecting hole 9 to realize the movement of the door body 1. A roller 11 is provided at the bottom of the door body 1 for assisting the movement.

[0044] In this embodiment, the motor 6 drives the lead screw 10 to rotate, so that the lead screw 10 rotates on the connecting hole 9, driving the shielding door to move, thereby realizing opening and closing.

[0045] Furthermore, a sensing device 12 is provided on the outer side of the door frame 2 .

[0046] By providing the sensing device 12, it is possible to detect when a person is outside the shielding door, and the motor can be operated by the control device to realize automatic opening or closing of the shielding door. In this embodiment, a foot sensor is used.

[0047] like Figure 6 As shown, a backup battery 13 is provided in the door frame 2 , and the backup battery 13 is connected to the motor 6 and the induction device 12 .

[0048] It can be achieved that the shielding door can still be used during a power outage.

[0049] Furthermore, a control device 14 is provided on the door frame 2 for controlling the operation of the motor 6 .

[0050] The shielding door opening time can be set by the control device, and the forward and reverse rotation of the motor 6 can be used to open and close the door. In this embodiment, the control device 14 controls the door opening speed of the motor 6 to be less than or equal to 500 mm / s, and the door closing speed to be less than or equal to 300 mm / s.

[0051] like Figure 7 As shown, the door body 1 and the door frame 2 are made of stainless steel.

[0052] The internal sound insulation layer 3 and the radiation protection layer 4 can be covered and protected. In this embodiment, the outer sides of the door body 1 and the door frame 2 are galvanized for protection. The outer side of the door body 1 is a 0.8 mm galvanized layer, and the outer side of the door frame 2 is a 1.5 mm galvanized layer, which can prevent the door body 1 and the door frame 2 from being easily damaged.

[0053] Furthermore, the material of the radiation protection layer 4 is lead plate.

[0054] In this embodiment, the radiation protection layer 4 is a 2 mm thick lead plate, which has good radiation protection performance.

[0055] Furthermore, the material of the sound insulation layer 3 is fiberboard.

[0056] In this embodiment, the sound insulation layer 3 is a 2 mm thick fiberboard, which can play a good sound insulation role. At the same time, the anti-radiation layer 4 and the sound insulation layer 3 are pressed together by low-temperature hot melting at a temperature of 200°C-300°C, so that the surface of the lead plate is melted and pressed with the fiberboard. After cooling, an integrated connection is achieved, making the door body 1 lighter as a whole.

[0057] Furthermore, the material of the observation window 5 is Flint glass.

[0058] By arranging an observation window 5 on the door body 1, medical staff can see the situation of people inside. Flint glass (leaded glass) is used, which has radiation protection function to ensure that radiation will not leak to the outside.

[0059] Working principle: The door body 1 is designed as a multi-layer structure, with a sound insulation layer 3 and an anti-radiation layer 4 in the middle, so as to make the door body 1 lightweight. The motor 6 drives the lead screw 10 to rotate, and the connecting hole 9 engages with the lead screw 10 to move the door body 1.

[0060] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A silent radiation shielding door, comprising: A door body (1) and a door frame (2), characterized in that: the door body (1) is a multi-layer structure, comprising: A sound insulation layer (3) is arranged inside the door body (1); An anti-radiation layer (4) is integrally connected to the sound insulation layer (3) and is arranged inside the door body (1) to reduce the weight of the door body (1); An observation window (5) is provided in the middle of the door body (1); The top and bottom of the door body (1) are both provided with moving devices; The door body (1) is installed in a sliding groove of a door frame (2) and moves under the control of a motor (6); a sealing device is provided on the closed end surfaces of the door body (1) and the door frame (2); The sealing device comprises a plurality of sealing strips (7) arranged on the door body (1) and a groove (8) arranged on the door frame (2), wherein the groove (8) is adapted to the shape of the sealing strip (7); The moving device comprises a connecting hole (9) arranged at the top of the door body (1); the motor (6) is installed in the wall; the motor (6) drives a lead screw (10) to rotate; the lead screw (10) is engaged with the connecting hole (9) to realize the movement of the door body (1); and a roller (11) is provided at the bottom of the door body (1) for assisting the movement; A sensing device (12) is provided on the outer side of the door frame (2); A backup battery (13) is provided in the door frame (2), and the backup battery (13) is connected to the motor (6) and the induction device (12); The door frame (2) is provided with a control device (14) for controlling the operation of the motor (6); The door body (1) and the door frame (2) are made of stainless steel; The material of the radiation protection layer (4) is lead plate; The material of the sound insulation layer (3) is fiberboard; The material of the observation window (5) is Flint glass.

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