Radiation shielding door

Abstract

The utility model discloses a kind of radiation protection doors, comprising: door panel, the connecting plate being installed above the door panel, the lead screw passing through the connecting plate and the frame supporting the lead screw;Two mutually parallel sealing plates are equipped in the door panel, a plurality of first springs are equipped between the sealing plate and door panel, the movable rod that simultaneously penetrates two the sealing plate one end and extends out the door panel is equipped in the door panel, transition groove is opened in the cooperation place of movable rod and sealing plate, limit block is opened in the cooperation place of sealing plate and movable rod, the middle segment of movable rod is sleeved with fixed block and second spring, by the elastic pressure of first spring of parallelly arranged sealing plate, sealing plate is always close to wall surface when door is closed, dynamic compensation wall surface uneven or door panel deformation, eliminate the gap problem of traditional rigid seal;Movable rod penetrates sealing plate and is provided with transition groove, form linkage mechanism in combination with limit block;When door panel moves, transition groove guides limit block displacement.

Description

Technical Field

[0001] This utility model relates to the field of protective door technology, specifically a radiation protection door. Background Technology

[0002] Radiation protection doors are devices used to block and protect against radiation scattering. They are widely used in medical, scientific research, and industrial fields. Their main function is to effectively block X-rays, gamma rays, and neutron rays through lead plates or other shielding materials, thereby protecting the safety of personnel and equipment.

[0003] Traditional radiation protection doors typically require sufficient gaps between the door panel and the wall to ensure smooth operation when moving. However, the presence of gaps can lead to leaks or other issues, resulting in reduced radiation protection effectiveness. Furthermore, the gaps between the door panel and the wall cannot be filled when the door is closed. Utility Model Content

[0004] Purpose of the utility model: To provide a radiation protection door to solve the above-mentioned problems existing in the prior art.

[0005] Technical solution: A radiation protection door, comprising: A door panel, a connecting plate mounted above the door panel, a lead screw passing through the connecting plate, and a frame supporting the lead screw; The door panel contains two parallel sealing plates, and multiple first springs are installed between the sealing plates and the door panel. The door panel is provided with a movable rod that passes through one end of both sealing plates and extends out of the door panel. A transition groove is provided at the mating point between the movable rod and the sealing plate. A limit block is provided at the mating point between the sealing plate and the movable rod. A fixing block and a second spring are sleeved on the middle section of the movable rod. The other end of the sealing plate is provided with a sealing gasket, the sealing gasket is hinged to the sealing plate, and a third spring is also provided between the sealing plate and the sealing gasket; The door panel is also provided with at least two limiting plates on one side, one of which is installed on the frame.

[0006] In a further embodiment, the door panel has openings at the positions of the sealing plate and the sealing gasket, a motor connected to the lead screw is provided on one side of the frame, and multiple bolt holes are provided on the same side of the frame and the opening.

[0007] In a further embodiment, a groove is provided within the frame, and a roller connected to the door panel is provided within the groove, with the roller engaging in a rolling cooperation with the groove.

[0008] In a further embodiment, the lead screw is movably connected to the frame, the lead screw engages with the connecting plate, the connecting plate is threadedly connected to the door panel, and the door panel is placed inside the frame.

[0009] In a further embodiment, the two sealing plates are perpendicular to the frame, and one end of the first spring is connected to the door panel and the other end is connected to the sealing plate.

[0010] In a further embodiment, the movable rods are all slidably engaged with the fixed block and the sealing plate, and the fixed block is fixedly connected to the door panel.

[0011] In a further embodiment, one end of the second spring is connected to the fixed block and the other end is connected to the movable rod, and the sealing gasket is parallel to the frame and perpendicular to the sealing plate.

[0012] In a further embodiment, one end of the third spring is connected to the sealing plate and the other end is connected to the sealing gasket, the limiting plate is threadedly connected to the frame, and the limiting plate is located on one side of the movable rod and is used to prevent the limiting plate from moving.

[0013] Beneficial effects: This utility model discloses a radiation protection door. The utility model uses parallel sealing plates and the elastic pressure of the first spring to make the sealing plates always stick tightly to the wall when the door is closed, dynamically compensating for unevenness of the wall or deformation of the door panel, and eliminating the gap problem of traditional rigid seals. The movable rod passes through the sealing plate and is equipped with a transition groove, which, together with the limit block, forms a linkage mechanism. When the door panel moves, the transition groove guides the displacement of the limit block, controls the extension and retraction rhythm of the sealing plate, and ensures that the sealing gasket is only pressed when fully closed, thus avoiding frictional wear during the movement. The second spring in the middle of the movable rod provides a restoring force, automatically retracting the sealing plate when the door is opened, reducing the risk of mechanical jamming and extending service life; the sealing gasket is connected to the sealing plate through a hinge structure, and with the flexible support of the third spring, it can adapt to changes in the wall angle (such as tilt or curvature) to form a multi-angle fit seal. The frame-side motor drives the lead screw, which achieves precise translation of the door panel through the meshing connecting plate, avoiding manual operation errors. It is especially suitable for lead protective doors weighing several tons. The door panel rolls smoothly and quietly in the groove of the frame through rollers, while avoiding sealing failure caused by door panel shaking. The limiting plate on the frame works in conjunction with the door panel limiting plate to lock the door panel position when fully closed, preventing displacement caused by external impact; the bolt hole design facilitates quick installation and adjustment, adapting to different wall thicknesses; the movable rod and the fixed block are slidably connected to ensure that the extension and retraction trajectory of the sealing plate is precisely controllable, avoiding local leakage caused by skewing. Attached Figure Description

[0014] Figure 1 This is the front view of this utility model.

[0015] Figure 2 This is a rear view of the present invention.

[0016] Figure 3 This is a front half-sectional view of the present invention.

[0017] Figure 4 This is a top view of the present invention.

[0018] Figure 5 This is a partial schematic diagram of the limiting block of this utility model.

[0019] Figure 6 This is a partial schematic diagram of the spring of this utility model.

[0020] Figure 7 This is a partial schematic diagram of the sealing plate of this utility model.

[0021] Figure 8 This is the left view of this utility model.

[0022] Figure 9 This is a partial schematic diagram of the roller of this utility model.

[0023] Figure 10 This is a right-side half-sectional view of the present invention.

[0024] Figure 11 This is a partial schematic diagram of the sealing gasket of this utility model.

[0025] The attached diagram is labeled as follows: 1. Door panel; 2. Frame; 3. Limiting plate; 4. Sealing plate; 5. Movable rod; 6. First spring; 7. Sealing gasket; 11. Connecting plate; 12. Roller; 21. Lead screw; 22. Groove; 41. Transition groove; 51. Limiting block; 52. Second spring; 53. Fixing block; 71. Third spring. Detailed Implementation

[0026] This utility model provides a radiation protection door, in which a movable rod passes through a sealing plate and a transition groove is provided, forming a linkage mechanism with a limiting block. When the door panel moves, the transition groove guides the displacement of the limiting block, controlling the extension and retraction rhythm of the sealing plate, ensuring that the sealing gasket is only pressed when fully closed, thus avoiding frictional wear during movement. The specific implementation of the solution is described in detail below.

[0027] Reference Figures 1-11 As shown, a radiation protection door includes: The system comprises a door panel 1, a connecting plate 11 mounted above the door panel 1, a lead screw 21 passing through the connecting plate 11, and a frame 2 supporting the lead screw 21. A groove 22 is also provided within the frame 2, and a roller 12 connected to the door panel 1 is provided within the groove 22, with the roller 12 rolling in cooperation with the groove 22. The lead screw 21 is movably connected to the frame 2, engages with the connecting plate 11, and is threadedly connected to the door panel 1. The door panel 1 is placed within the frame 2.

[0028] The door panel 1 is provided with two parallel sealing plates 4. Multiple first springs 6 are provided between the sealing plates 4 and the door panel 1. The door panel 1 has openings at the positions of the sealing plates 4 and the sealing gaskets 7. A motor connected to the lead screw 21 is provided on one side of the frame 2. Multiple bolt holes are provided on the same side of the frame 2 as the opening. The two sealing plates 4 are perpendicular to the frame 2. One end of the first spring 6 is connected to the door panel 1 and the other end is connected to the sealing plate 4.

[0029] The door panel 1 is provided with a movable rod 5 that passes through one end of both sealing plates 4 and extends out of the door panel 1. A transition groove 41 is provided at the joint between the movable rod 5 and the sealing plate 4. A limit block 51 is provided at the joint between the sealing plate 4 and the movable rod 5. A fixing block 53 and a second spring 52 are sleeved in the middle section of the movable rod 5. The movable rod 5 is slidably engaged with the fixing block 53 and the sealing plate 4. The fixing block 53 is fixedly connected to the door panel 1. One end of the second spring 52 is connected to the fixing block 53 and the other end is connected to the movable rod 5. The sealing gasket 7 is parallel to the frame 2 and perpendicular to the sealing plate 4.

[0030] The other end of the sealing plate 4 is provided with a sealing gasket 7, which is hinged to the sealing plate 4. A third spring 71 is also provided between the sealing plate 4 and the sealing gasket 7. One end of the third spring 71 is connected to the sealing plate 4 and the other end is connected to the sealing gasket 7. The limiting plate 3 is threaded to the frame 2. The limiting plate 3 is located on one side of the movable rod 5 and is used to prevent the limiting plate 3 from moving. At least two limiting plates 3 are also provided on one side of the door panel 1, one of which is installed on the frame 2.

[0031] Working principle: When the radiation protection door is closed and opened, the motor on one side of the frame 2 starts to work, driving the lead screw 21 connected to it to rotate. Since the lead screw 21 meshes with the connecting plate 11, and the connecting plate 11 is threadedly connected to the door panel 1, the rotation of the lead screw 21 drives the connecting plate 11 to move, thereby causing the door panel 1 placed in the frame 2 to start to move precisely in the closing direction. The door panel 1 rolls in the groove 22 opened in the frame 2 through the roller 12, ensuring that it runs smoothly and with low noise, while avoiding shaking that could cause the seal to fail. As the door panel 1 gradually approaches the closed position of the limit plate 3, the two parallel sealing plates 4, which are pierced by the movable rod 5, gradually extend from the inside of the door panel 1 under the elastic pressure of the first spring 6, so that they always stick tightly to the wall surface. This dynamically compensates for unevenness of the wall surface or deformation of the door panel 1, and eliminates the gap problem of traditional rigid sealing. The movable rod 5 passes through the sealing plate 4, and the transition groove 41 opened on it and the limiting block 51 opened at the mating point of the sealing plate 4 form a linkage mechanism; as the door panel 1 moves, the transition groove 41 guides the limiting block 51 to move, controlling the sealing plate 4 to extend and retract; when the door panel 1 is completely closed, the sealing plate 4 extends to the appropriate position to ensure that the sealing plate 4 is in full contact with the wall. The sealing gasket 7 is connected to the sealing plate 4 through a hinge structure, and a third spring 71 is provided between the sealing plate 4 and the sealing gasket 7. When the sealing gasket 7 contacts the wall, the third spring 71 plays a flexible support role, enabling the sealing gasket 7 to adapt to changes in the ground angle, such as the ground surface being inclined or curved, thereby forming a multi-angle fit seal. When the door panel 1 is completely closed, the limiting plate 3 on the frame 2 and the limiting plate 3 on one side of the door panel 1 cooperate with each other to lock the position of the door panel 1 and prevent the door panel 1 from shifting due to external impact. When the radiation protection door is opened, the motor on the side of the frame 2 reverses, driving the lead screw 21 to rotate in the opposite direction. Through the engagement of the lead screw 21 with the connecting plate 11, the connecting plate 11 is moved in the opening direction, thereby causing the door panel 1 to move in the frame 2 along the groove 22 in the opening direction via the roller 12. When the door panel 1 is opened, the second spring 52 provides a restoring force, and controls the movement of the movable rod 5 through its connection with the movable rod 5 and the fixed block 53; the transition groove 41 on the movable rod 5 guides the limit block 51 on the sealing plate 4 to move in the opposite direction, so that the sealing plate 4 automatically retracts into the door panel 1; this process effectively reduces the risk of mechanical jamming and extends the service life of the protective door. During the retraction of the sealing plate 4, the sealing gasket 7, under the elastic action of the third spring 71, also gradually adjusts its position following the movement of the sealing plate 4, preparing for the next closure.

[0032] The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the specific details of the above embodiments. Within the scope of the technical concept of the present invention, various equivalent transformations can be made to the technical solutions of the present invention, and all such equivalent transformations fall within the protection scope of the present invention.

Claims

1. A radiation shielding door, comprising: A door panel, a connecting plate mounted above the door panel, a lead screw passing through the connecting plate, and a frame supporting the lead screw; The feature is that the door panel is provided with two parallel sealing plates, and a plurality of first springs are provided between the sealing plates and the door panel. The door panel is provided with a movable rod that passes through one end of both sealing plates and extends out of the door panel. A transition groove is provided at the mating point between the movable rod and the sealing plate. A limit block is provided at the mating point between the sealing plate and the movable rod. A fixing block and a second spring are sleeved on the middle section of the movable rod. The other end of the sealing plate is provided with a sealing gasket, the sealing gasket is hinged to the sealing plate, and a third spring is also provided between the sealing plate and the sealing gasket; The door panel is also provided with at least two limiting plates on one side, one of which is installed on the frame.

2. A radiation shielding door according to claim 1, wherein: The door panel has openings at the positions of the sealing plate and the sealing gasket. A motor connected to a lead screw is provided on one side of the frame. Multiple bolt holes are provided on the same side of the frame as the opening.

3. A radiation shielding door according to claim 1, wherein: The frame is also provided with a groove, and a roller connected to the door panel is provided in the groove, and the roller rolls in cooperation with the groove.

4. A radiation shielding door according to claim 1, wherein: The lead screw is movably connected to the frame, the lead screw engages with the connecting plate, the connecting plate is threadedly connected to the door panel, and the door panel is placed inside the frame.

5. A radiation shielding door according to claim 1, wherein: The two sealing plates are perpendicular to the frame, and one end of the first spring is connected to the door panel and the other end is connected to the sealing plate.

6. A radiation shielding door according to claim 1, wherein: The movable rods are all slidably engaged with the fixed block and the sealing plate, and the fixed block is fixedly connected to the door panel.

7. A radiation shielding door according to claim 1, wherein: One end of the second spring is connected to the fixed block and the other end is connected to the movable rod. The sealing gasket is parallel to the frame and perpendicular to the sealing plate.

8. A radiation shielding door according to claim 1, wherein: One end of the third spring is connected to the sealing plate and the other end is connected to the sealing gasket. The limiting plate is threadedly connected to the frame. The limiting plate is located on one side of the movable rod and is used to prevent the limiting plate from moving.

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