Radiation-proof translation protective door

Abstract

The utility model relates to the technical field of radiation protection, in particular to a radiation-proof translation protective door which comprises a horizontal sliding rail, a square door plate and a filling beam extending in the first direction. The sliding rail extends in the first direction and is located above a door opening to be blocked. The upper end of the door plate is fixed to a frame body of the walking wheel assembly, the walking wheel assembly can walk along the sliding rail, and a groove is formed in the floor below the door plate. The filling beam is arranged on the lower portion of the door plate, a containing groove is formed in the lower end of the door beam, and the filling beam can vertically ascend and descend to enter or break away from the containing groove. Guide rods vertically penetrating through the door plate are arranged at the two ends of the door plate in the first direction correspondingly, the upper ends of the guide rods are connected with a pressing frame, and a pressing wheel is rotationally installed on the pressing frame; the lower ends of the guide rods are fixed with filling beams; and pressing blocks corresponding to the pressing wheels are fixedly arranged below the sliding rails, in the state that the door plate blocks the door opening, the pressing wheels incline downwards along the inclined faces, and the guide rods move downwards to enable the filling beams to stretch out of the containing grooves downwards so as to fill the grooves.

Description

Technical Field

[0001] The utility model relates to the technical field of radiation protection, in particular to a radiation protection translation protection door. Background Art

[0002] Electric sliding protective doors are radiation protection devices designed specifically for medical and scientific research applications. They are primarily used to block radiation from entering and exiting entrances, ensuring radiation safety for both personnel and the environment. Currently, sliding protective doors manufactured for these applications often experience radiation leakage through the gap between the bottom of the door and the floor.

[0003] In a related technical solution, a trough structure is embedded in the floor, capable of upward movement and interlocked with the lower end of the protective door. While this solves the radiation leakage problem, its service life is easily affected by the surrounding sanitary environment. Specifically, debris can easily accumulate in the trough, which can hinder its raising and lowering, making it difficult to raise or lower. If a large amount of debris accumulates, forced raising or lowering of the trough can easily damage the corresponding lifting drive components. Utility Model Content

[0004] The utility model provides a radiation-proof sliding protective door, which can solve at least one of the above-mentioned technical problems.

[0005] To address the aforementioned technical issues, one or more embodiments of the present invention provide a radiation-proof sliding protective door comprising a horizontal slide rail, a square door panel, and a filler beam extending in a first direction. The slide rail extends in the first direction, is positioned above the door opening to be sealed, and is secured to the wall. The upper end of the door panel is secured to a frame of a running wheel assembly, which is capable of moving along the slide rail. A groove is provided in the floor below the door panel.

[0006] A filler beam is positioned below the door panel, with a receiving slot defined at its lower end. The filler beam can be raised and lowered vertically to enter or exit the receiving slot. Guide rods extending vertically through the door panel are located at each end along a first direction. The upper ends of the guide rods are connected to a pressure frame, on which a pressure wheel is rotatably mounted. The lower ends of the guide rods are secured to the filler beam. An elastic return member is positioned between the guide rod and the door panel to provide an upward driving force for the guide rod. Pressure blocks corresponding to the pressure wheels are fixedly positioned below the slide rails. The lower surfaces of the pressure blocks have downwardly slanted surfaces that engage the pressure wheels.

[0007] The relative positions of the pressing block and the pressing wheel are set as follows: when the door panel blocks the door opening, the pressing wheel tilts downward along the inclined surface, and the guide rod moves downward to make the filling beam extend downward from the accommodating slot to fill the groove.

[0008] The beneficial effects of one or more of the above technical solutions are:

[0009] Compared to existing designs that embed door gap sealing structures in the floor, this solution installs a rising and falling filler beam beneath the door panel, with a groove in the floor. This arrangement allows the filler beam, which rises and retracts within the door panel, to remain within the door panel during translation without hindering its movement. Once the door panel is sealed against the door opening and no longer moves, the filler beam descends, extending from the door panel, to seal the gap between the door panel and the floor, preventing radiation leakage through the gap.

[0010] In this solution, the liftable filling beam is set on the door panel, and debris will not accumulate at the filling beam position. No other structure is set in the groove, which can reduce the difficulty of cleaning the groove and thus reduce the situation where the groove debris caused by inadequate cleaning affects the lifting and lowering of the filling beam.

[0011] Furthermore, in this solution, the lifting and lowering of the filler beam and guide rods are driven by the cooperation of the pressure block and the pressure roller. The mutual movement between the pressure roller and the pressure block is synchronized with the translational motion of the door panel. In other words, this solution eliminates the need for a separate power drive to raise and lower the filler beam and guide rods, facilitating the synchronous raising and lowering of the filler beam during the translational motion of the door panel. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is an axonometric diagram of the overall structure after removing the lead plate in the embodiment of the utility model;

[0013] Figure 2 yes Figure 1 A schematic diagram of the structure of part A;

[0014] Figure 3 yes Figure 1 A schematic diagram of the structure of part B in the middle;

[0015] Figure 4 This is a partial cross-sectional view of the overall structure after the lead plate is removed in the embodiment of the utility model;

[0016] Figure 5 yes Figure 4 A schematic diagram of the structure of the middle C part;

[0017] Figure 6 yes Figure 4 Schematic diagram of the enlarged structure of part D.

[0018] In the figure, 1. wall; 2. slide rail; 3. floor; 4. door opening; 5. door beam; 51. cross beam; 52. longitudinal beam; 53. bottom beam; 6. groove; 7. pressure wheel; 8. pressure block; 9. travel wheel assembly; 91. travel wheel; 10. filling beam; 11. guide sleeve; 12. guide rod; 13. first limit plate; 14. second limit plate; 15. spring. DETAILED DESCRIPTION

[0019] In order to clearly illustrate the technical features of this solution, the present invention is described in detail below through specific implementation methods and in conjunction with the accompanying drawings.

[0020] The present application defines the direction of translational movement of the door panel as a first direction, which is horizontally arranged. The present application also defines a second direction, which is perpendicular to the first direction and perpendicular to the door panel and the door opening.

[0021] See also Figures 1-6 This embodiment provides a radiation-proof sliding protective door, comprising a horizontal slide rail 2, a square door panel, and a filler beam 10 extending in a first direction. The slide rail 2 extends in the first direction, is positioned above a door opening 4 to be sealed, and is secured to a wall 1. The upper end of the door panel is secured to the frame of a wheel assembly 9, which is capable of traveling along the slide rail 2. A groove 6 is provided in the floor 3 below the door panel.

[0022] Specifically, a door opening 4 is provided on a wall 1 of a protective room to be protected, and a door panel capable of opening and closing the door opening 4 in a horizontal direction is installed at the door opening 4. Because the door panel moves in a first direction driven by a running wheel assembly 9, the length of the slide rail 2 in the first direction is at least twice the width of the door opening 4.

[0023] Specifically, the running wheel assembly 9 includes a frame and running wheels 91. Each frame is equipped with multiple running wheels 91. The axis of the running wheel 91 is horizontal and perpendicular to the plane where the door panel is located. Two or three groups of running wheel assemblies 9 are arranged above the door panel.

[0024] The filling beam 10 is provided at the lower part of the door panel. The lower end of the door beam 5 has a receiving groove. The filling beam 10 can be raised and lowered vertically to enter or exit the receiving groove. The door panel is provided with guide rods 12 vertically penetrating the door panel at both ends along the first direction. The upper end of the guide rod 12 is connected to the pressure frame, on which a pressure wheel 7 is rotatably mounted. The lower end of the guide rod 12 is fixed to the filling beam 10. An elastic reset member is provided between the guide rod 12 and the door panel to provide an upward driving force to the guide rod 12. Pressure blocks 8 corresponding to the pressure wheels 7 are fixed below the slide rail 2. The lower surface of the pressure block 8 has an inclined surface that is tilted downward and can cooperate with the pressure wheel 7. The relative position of the pressure block 8 and the pressure wheel 7 is set so that when the door panel blocks the door opening 4, the pressure wheel 7 tilts downward along the inclined surface, and the guide rod 12 moves downward to make the filling beam 10 extend downward out of the receiving groove to fill the groove 6.

[0025] To achieve shock absorption, the filler beam 10 in this embodiment is a U-shaped structure, with its opening facing downward. The filler beam 10 comprises a horizontally arranged top plate and two vertically arranged wing plates, which are secured to the top plate at either end along the second direction. Specifically, the guide rod 12 has a threaded section at its lower end, and the top plate has mounting holes extending vertically through it. The guide rod 12 passes through these holes and is secured to the top plate and guide rod 12 via nuts.

[0026] In this embodiment, the door panel includes a door beam 5 in the form of a square frame, on which a square lead plate (not shown) is fixed.

[0027] Specifically, the door beam 5 is made of a metal material such as aluminum alloy or cast iron. It serves as the skeleton structure of the door panel, enhancing the structural strength of the entire door panel. The lead plates are secured to the door beam 5 via gluing, bolting, or snap fastening. More specifically, lead plates are provided on either side of the door beam 5 along the second direction, with the two lead plates symmetrically attached to either side of the door beam 5.

[0028] As a specific structural form, in this embodiment, the door beam 5 includes two longitudinal beams 52, and a horizontal cross beam 51 and a bottom beam 53 are fixed between the two longitudinal beams 52. The bottom beam 53 is located at the lower end of the door beam 5, and has a accommodating groove with an opening facing downward.

[0029] Preferably, the crossbeam 51 and longitudinal beam 52 have the same structural form, and both are square tubular structures. The crossbeam 51, longitudinal beam 52, and bottom beam 53 are secured by welding. In other configurations, the three can be secured by bolts or snap connections. In this case, the longitudinal beam 52 has a cavity extending through it from top to bottom, which is used to accommodate the guide rod 12.

[0030] More specifically, the accommodating groove passes through both ends of the bottom beam 53 along the first direction.

[0031] In this embodiment, the longitudinal cross-section of the pressing block 8 is a triangular shape of predetermined dimensions, and the pressing block 8 is secured to the wall 1. Specifically, the pressing block 8 is secured to the outer surface of the wall 1 by bonding or bolting. In one specific configuration, a gap exists between the pressing block 8 and the slide rail 2, and the pressing block 8 is secured solely by the wall 1. In other configurations, the pressing block 8 is secured to the lower surface of the slide rail 2.

[0032] In this embodiment, the elastic return member is a spring 15, which is sleeved on the outside of the guide rod 12. A first limit plate 13 is fixed to the outer ring of the guide rod 12, and both ends of the spring 15 are stopped between the first limit plate 13 and the bottom beam 53. In this embodiment, a second limit plate 14 is also included. The second limit plate 14 is sleeved on the outside of the guide rod 12, below the first limit plate 13 and fixed to the bottom beam 53, and the spring 15 is located between the first limit plate 13 and the second limit plate 14.

[0033] As another specific structural form, a spring (not shown) is arranged parallel to the outside of the guide rod 12. There are multiple springs, and the multiple springs can be arranged around the outer annular surface of the guide rod 12. In this case, the upper and lower ends of the spring are respectively fixed to the first limit plate 13 and the second limit plate 14.

[0034] This embodiment also includes a guide sleeve 11, which is disposed outside of a guide rod 12. The guide sleeve 11 is embedded in and fixed to the door panel. In one specific configuration, the guide rod and guide sleeve 11 have circular cross-sections. In other configurations, the cross-sections of the guide rod and guide sleeve 11 may be square, oval, or other shapes.

[0035] Working Principle: When the door panel is open, the spring 15 causes the filler beam 10 to retract upward and become completely concealed within the panel. As the door panel moves, the filler beam 10 moves with it. Once the door panel reaches a certain position, the pressure wheel 7, attached to the upper end of the guide rod 12, is squeezed by the pressure block attached to the slide rail 2. This causes the pressure wheel 7, along with the guide rod 12, to press the spring 15 downward, causing the filler beam 10 to extend downward from the door panel and into the groove 6 in the ground below. At this point, the filler beam 10 fills the gap between the door panel and the ground. When the door panel opens, the spring 15 resets the filler beam 10, returning it to the interior of the door panel to prevent it from interfering with the panel's translational opening.

[0036] The above specific implementation methods cannot be used as a limitation on the protection scope of the present utility model. For those skilled in the art, any replacement, improvement or transformation made to the implementation methods of the present utility model falls within the protection scope of the present utility model.

[0037] Anything not described in detail in the present invention is well known to those skilled in the art.

Claims

1. A radiation-proof sliding protective door, characterized in that: include: a horizontal slide rail extending in a first direction, the slide rail being located above the door opening to be blocked and being fixed to the wall; The upper end of the square door panel is fixed to the frame of the travel wheel assembly, and the travel wheel assembly can move along the slide rail. A groove is provided on the floor below the door panel. A filler beam extending in a first direction is provided at the lower portion of the door panel, and a receiving slot is provided at the lower end of the door beam. The filler beam can be raised and lowered vertically to enter or exit the receiving slot; guide rods vertically penetrating the door panel are provided at both ends of the door panel in the first direction, the upper ends of the guide rods are connected to a pressure frame, and a pressure wheel is rotatably mounted on the pressure frame; the lower ends of the guide rods are fixed to the filler beam; an elastic reset member is provided between the guide rods and the door panel to provide an upward driving force for the guide rods; A pressure block corresponding to each pressure wheel is fixedly provided below the slide rail, and the lower surface of the pressure block has an inclined surface that is inclined downward and can cooperate with the pressure wheel; The relative positions of the pressure block and the pressure wheel are set as follows: when the door panel blocks the door opening, the pressure wheel tilts downward along the inclined surface, and the guide rod moves downward to make the filling beam extend downward from the receiving slot to fill the groove.

2. The radiation-proof sliding protective door according to claim 1, characterized in that: The door panel comprises a door beam in a square frame, and a square lead plate is fixed on the door beam.

3. The radiation-proof sliding protective door according to claim 2, characterized in that: The door beam comprises two longitudinal beams, a horizontal cross beam and a bottom beam are fixed between the two longitudinal beams, the bottom beam is located at the lower end of the door beam, and the bottom beam is provided with the accommodating groove with an opening facing downwards.

4. The radiation-proof sliding protective door according to claim 3, characterized in that: The accommodating groove passes through both ends of the bottom beam along the first direction.

5. The radiation-proof sliding protective door according to claim 3, characterized in that: The longitudinal beam has a cavity running through it from top to bottom, and the cavity is used to accommodate the guide rod.

6. The radiation-proof sliding protective door according to claim 1, characterized in that: The longitudinal section of the pressing block is a triangle with a fixed size, and the pressing block is fixed to the wall.

7. The radiation-proof sliding protective door according to claim 1, characterized in that: The elastic reset member is a spring, which is sleeved on the outside of the guide rod. The outer ring of the guide rod is fixed with a first limit plate, and both ends of the spring are stopped between the first limit plate and the bottom beam.

8. The radiation-proof sliding protective door according to claim 7, characterized in that: It also includes a second limiting plate, which is sleeved on the outside of the guide rod. The first limiting plate is located below the first limiting plate and is fixed to the bottom beam. The spring is located between the first limiting plate and the second limiting plate.

9. The radiation-proof sliding protective door according to claim 1, characterized in that: It also includes a guide sleeve, which is arranged on the outside of the guide rod and is embedded in the door panel and fixed to the door panel.

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