Flat opening type ray protection door

Abstract

The utility model relates to the technical field of radiation protection equipment, in particular to a side-hung type radiation protection door which comprises a door body arranged in a wall body, the wall body is provided with a doorway, a mounting hole is concavely formed in one side of the bottom of the doorway, a base is fixedly arranged in the mounting hole, a trapezoidal nut is fixedly embedded in the base, and an upper shaft seat is fixedly embedded in one side of the bottom of the doorway. The upper shaft seat is opposite to the base; a screw door spindle is arranged on one side of the bottom edge of the door body, one end of the screw door spindle is fixedly connected with the door body, and the other end of the screw door spindle is embedded into the base and penetrates through the trapezoidal nut in a threaded mode; a connecting door shaft is arranged on one side of the top edge of the door body, is embedded in the upper shaft seat and is rotationally connected with the upper shaft seat; a doorsill is fixedly arranged at the bottom of the doorway, and when the door body is closed, the bottom of the door body abuts against the doorsill. According to the side-hung type ray protection door, smooth opening and closing of the door body can be guaranteed, and rays can be effectively prevented from leaking out of a gap in the bottom of the door body without a high threshold.

Description

Technical Field

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

[0002] Radiation hazards refer to the damage caused by radiation to the human body. Based on the mode of exposure, they are generally categorized as high-dose, short-term acute exposure and low-dose, long-term chronic exposure. The time it takes for damage to appear and the severity of symptoms vary. Acute damage generally manifests early, while some may have a longer latent period. Early radiation effects include hematopoietic organ damage, digestive system damage, and central nervous system damage, with doses ranging from hundreds to thousands of rads. Chronic radiation damage is particularly difficult to diagnose because the long time between exposure and the onset of symptoms makes it difficult to determine cause and effect. Furthermore, both subjective and perceived radiation-induced symptoms lack specificity. Evidence of the exposure and symptoms at the time must be collected for a proper assessment of the individual.

[0003] Installing radiation protection doors near radiation points is a means of implementing shielding protection. As an isolation facility that can effectively block radiation, it is widely used in hospitals. At present, the general protection door is a track-type protection door. This type of protection door requires sufficient area to install the track, so the track-type protection door has certain area requirements; because radiation protection doors are mainly made of lead-boron polyethylene plates, lead plates and alloy steel, they are heavy and prone to lack of precision during installation, causing the protection door to scrape against the ground when opening and closing the door. At the same time, if the ground is uneven, the protection door will also scrape against the ground, causing damage to the door. Therefore, it is generally necessary to install a higher threshold to prevent radiation from leaking out from the bottom of the door. However, a higher threshold will affect people's normal passage and easily cause them to trip, and it is difficult for wheelchairs to pass through the higher threshold. Utility Model Content

[0004] In order to solve the above problems, the utility model provides a flat-hinged radiation protection door, which can ensure the smooth opening and closing of the door body, and can effectively block the leakage of radiation from the gap at the bottom of the door body without setting a high threshold.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A flat-opening radiation protection door, comprising a door body arranged in a wall, the wall being provided with a doorway, a mounting hole being recessed on one side of the bottom of the doorway, a base being fixedly arranged in the mounting hole, a trapezoidal nut being fixedly embedded in the base, an upper shaft seat being fixedly embedded on one side of the bottom of the doorway, and the upper shaft seat being directly opposite the base;

[0007] A screw door shaft is provided on one side of the bottom edge of the door body, one end of the screw door shaft is fixedly connected to the door body, and the other end is embedded in the base and threadedly passed through the trapezoidal nut; a connecting door shaft is provided on one side of the top edge of the door body, the connecting door shaft is embedded in the upper shaft seat and rotatably connected to the upper shaft seat;

[0008] A threshold is fixedly provided at the bottom of the doorway, and when the door body is closed, the bottom of the door body abuts against the threshold.

[0009] Furthermore, bolts are arranged around the trapezoidal nut, and one end of the bolt is slid through the trapezoidal nut and then threadedly embedded in the base.

[0010] Furthermore, a pressing plate is provided at one end of the base away from the trapezoidal nut, the pressing plate is fixedly embedded in the mounting hole, and two ends of the pressing plate are respectively in contact with the base and the wall;

[0011] An abutment is provided in the pressure plate, and the end of the screw shaft away from the trapezoidal nut is slidably embedded in the abutment. The screw shaft fixing sleeve is provided with an abutment ring, and the screw shaft sleeve is provided with a plurality of disc springs, and the disc springs at both ends abut against the abutment ring and the abutment respectively.

[0012] Furthermore, the elastic force provided by the plurality of disc springs is equal to the gravity of the door body.

[0013] Furthermore, the outer wall of the abutment member is threadedly connected to the inner wall of the pressure plate.

[0014] The beneficial effects of the utility model are:

[0015] 1. Because the screw door shaft is threadedly connected to the trapezoidal nut, when the door is closed, the door is positioned low, allowing the bottom of the door to abut against the door threshold, effectively blocking radiation from leaking through the gap at the bottom of the door. When the door is opened, the screw door shaft rotates and rises along the base, lifting the door, preventing it from scraping against the ground and ensuring that the door is not damaged. The door of this utility model is in a low position when closed, and a low door threshold can also achieve radiation shielding, preventing pedestrians from tripping. Furthermore, wheelchairs can pass through the threshold without lifting, providing convenience for patients.

[0016] 2. The disc spring provides support for the door, reducing friction between the screw shaft and the base, making it easier to open and close the door. By adjusting the size and number of disc springs sleeved around the screw shaft, as well as the height of the abutment within the pressure plate, the spring force provided by the disc spring can be equalized to the weight of the door, further reducing the force required to open and close the door, making it easier to open and close. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of a flat-hung radiation protection door according to a preferred embodiment of the present invention.

[0018] Figure 2 for Figure 1 Cross-sectional view at AA.

[0019] Figure 3 for Figure 1 Cross-sectional view at DD.

[0020] Figure 4 for Figure 2 Schematic diagram of the structure at point B.

[0021] Figure 5 This is a schematic diagram of the door structure of a flat-hung radiation protection door in a closed state according to a preferred embodiment of the present invention.

[0022] Figure 6 for Figure 5 Schematic diagram of the structure at point C.

[0023] In the figure, 1-wall, 11-threshold, 2-door body, 21-screw door shaft, 211-abutment ring, 3-base, 31-upper shaft seat, 4-trapezoidal nut, 41-bolt, 5-pressure plate, 51-abutment member, 52-disc spring. DETAILED DESCRIPTION

[0024] 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 embodiments described 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 making creative efforts are within the scope of protection of the present invention.

[0025] It should be noted that when a component is referred to as being "fixed to" another component, it may be directly on the other component or there may also be a central component. When a component is considered to be "connected to" another component, it may be directly connected to the other component or there may also be a central component. When a component is considered to be "set on" another component, it may be directly set on the other component or there may also be a central component. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this invention pertains. The terms used herein in the specification of this invention are intended only to describe specific embodiments and are not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0027] Please also see Figures 1 to 6 A preferred embodiment of the flat-hung radiation protection door of the present invention includes a door body 2 arranged in a wall 1.

[0028] A doorway is provided on the wall 1, and a mounting hole is recessed on one side of the bottom of the doorway. A base 3 is fixedly provided in the mounting hole, and a trapezoidal nut 4 is fixedly embedded in the base 3. An upper shaft seat 31 is fixedly embedded on one side of the bottom of the doorway, and the upper shaft seat 31 faces the base 3.

[0029] In this embodiment, bolts 41 are provided around the trapezoidal nut 4 . One end of the bolt 41 is slidably passed through the trapezoidal nut 4 and then threadedly embedded into the base 3 .

[0030] A screw door shaft 21 is provided on one side of the bottom edge of the door body 2, one end of the screw door shaft 21 is fixedly connected to the door body 2, and the other end is embedded in the base 3 and threaded through the trapezoidal nut 4; a connecting door shaft 22 is provided on one side of the top edge of the door body 2, and the connecting door shaft 22 is slidably embedded in the upper shaft seat 31 and rotatably connected to the upper shaft seat 31.

[0031] like Figure 3 As shown, a threshold 11 is fixedly provided at the bottom of the doorway of this embodiment, and when the door body 2 is closed, the bottom of the door body 2 abuts against the threshold 11.

[0032] Because the screw door shaft 21 is threadedly connected to the trapezoidal nut 4, when the door body 2 is closed, the door body 2 is positioned low, so that the bottom of the door body 2 abuts the threshold 11, effectively blocking radiation from leaking out through the gap at the bottom of the door body; when the door body is opened, the screw door shaft 21 rotates and rises along the base 3, lifting the door body 2, preventing the door body 2 from scratching the ground and ensuring that the door body 2 is not damaged. When closed, the door body 2 of the utility model is in a low position, and the low threshold 11 can also block radiation and prevent pedestrians from tripping. Moreover, wheelchairs can pass through the threshold 11 without lifting, providing convenience for patients.

[0033] In this embodiment, the screw door shaft 21 and the trapezoidal nut 4 are connected by a large-lead thread structure, so that the door body 2 can be raised and lowered over a larger range when it is rotated to close or open.

[0034] like Figure 4As shown, a pressing plate 5 is provided at one end of the base 3 away from the trapezoidal nut 4. The pressing plate 5 is fixedly embedded in the mounting hole, and both ends of the pressing plate 5 are respectively in contact with the base 3 and the wall 1.

[0035] An abutment 51 is provided in the pressure plate 5, and the end of the screw door shaft 21 away from the trapezoidal nut 4 is slidably embedded in the abutment 51. The screw door shaft 21 is fixedly sleeved with an abutment ring 211, and the screw door shaft 21 is sleeved with a number of disc springs 52, and the disc springs 52 at both ends are respectively in abutment with the abutment ring 211 and the abutment 51.

[0036] Under the action of the disc spring 52, it can provide supporting force for the door body 2, reducing the friction between the screw door shaft 21 and the base 3, so that the door body 2 can be easily opened or closed.

[0037] like Figure 4 As shown, the elastic force provided by the disc springs 52 is equal to the gravity of the door body 2.

[0038] The outer wall of the abutment member 51 is threadedly connected to the inner wall of the pressing plate 5 .

[0039] In this embodiment, the abutment 51 is a round nut, a hollow cavity is provided in the pressure plate 5, and an internal thread that slides with the abutment 51 is provided on the inner wall of the pressure plate 5, so that the height of the abutment 51 in the pressure plate 5 can be adjusted by rotating the abutment 51, so as to realize the pre-tightening force adjustment of the disc spring 52 by the abutment 51.

[0040] By adjusting the model specifications and overlapping quantity of the disc spring 52 sleeved on the screw door shaft 21, as well as adjusting the height of the abutment 51 in the pressure plate 5, the elastic force provided by the disc spring 52 can be made equal to the gravity of the door body 1, further reducing the force required to open and close the door body 2, so as to facilitate the opening and closing of the door body 2.

[0041] The opening and closing process of the flat-hung radiation protection door of this embodiment is as follows:

[0042] Figure 3 and Figure 4 In this embodiment, the door body 2 is in a closed state. The door body 2 is rotated and closed. During the closing process of the door body 2, the screw door shaft 21 descends along the trapezoidal nut 4 until the door body 2 abuts against the door sill 11. The door body 2 is in a low position, and the height between the door body 2 and the ground is H1.

[0043] like Figure 4 and Figure 5 In this embodiment, the door body 2 is in an open state. The door body 2 is rotated and closed. During the opening process of the door body 2, the screw door shaft 21 rises along the trapezoidal nut 4. When the door body 2 is fully opened, the door body 2 is in a high position, and the height between the door body 2 and the ground is H2.

Claims

1. A flat-hung radiation protection door, characterized in that: The invention comprises a door body (2) arranged in a wall (1), wherein the wall (1) is provided with a doorway, a mounting hole is recessed on one side of the bottom of the doorway, a base (3) is fixedly arranged in the mounting hole, a trapezoidal nut (4) is fixedly embedded in the base (3), an upper shaft seat (31) is fixedly embedded on one side of the bottom of the doorway, and the upper shaft seat (31) faces the base (3); A screw door shaft (21) is provided on one side of the bottom edge of the door body (2), one end of the screw door shaft (21) is fixedly connected to the door body (2), and the other end is embedded in the base (3) and threadedly penetrated into the trapezoidal nut (4); a connecting door shaft (22) is provided on one side of the top edge of the door body (2), and the connecting door shaft (22) is slidably embedded in the upper shaft seat (31) and is rotatably connected to the upper shaft seat (31); A threshold (11) is fixedly provided at the bottom of the doorway, and when the door body (2) is closed, the bottom of the door body (2) abuts against the threshold (11).

2. The swing-type radiation protection door according to claim 1, characterized in that: Bolts (41) are arranged around the trapezoidal nut (4), and one end of the bolt (41) is slidably passed through the trapezoidal nut (4) and then threadedly embedded in the base (3).

3. The swing-type radiation protection door according to claim 1, characterized in that: A pressure plate (5) is provided at one end of the base (3) away from the trapezoidal nut (4), the pressure plate (5) is fixedly embedded in the mounting hole, and two ends of the pressure plate (5) are respectively in contact with the base (3) and the wall (1); An abutment member (51) is provided in the pressure plate (5), and one end of the screw shaft (21) away from the trapezoidal nut (4) is slidably embedded in the abutment member (51), and the screw shaft (21) is fixedly sleeved with an abutment ring (211), and the screw shaft (21) is sleeved with a plurality of disc springs (52), and the disc springs (52) at both ends abut against the abutment ring (211) and the abutment member (51) respectively.

4. The swing-type radiation protection door according to claim 3, characterized in that: The elastic force provided by the disc springs (52) is equal to the gravity of the door body (2).

5. The swing-type radiation protection door according to claim 3, characterized in that: The outer wall of the abutment member (51) is threadedly connected to the inner wall of the pressing plate (5).

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