Radiation-proof shielding door
By introducing a multi-point locking mechanism into the radiation shielding door, the problem of gaps caused by uneven force on the edge of the door leaf is solved, achieving uniform fit between the door body and the door frame, and improving the safety and stability of the radiation shielding door.
Patent Information
- Application Number
- CN202520406966.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-10
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2035-03-10
AI Technical Summary
Existing radiation shielding doors have poor stability when closed. A single door lock cannot ensure that the edges of the door are evenly stressed and closed, which can easily lead to gaps and radiation leakage.
Design a radiation shielding door that employs a multi-point locking mechanism, including vertical and horizontal locking mechanisms. Through a linkage effect, ensure that the door body is evenly stressed at multiple points, reducing gaps and improving safety.
It achieves a uniform fit between the door body and the door frame around the entire circumference, reduces radiation leakage, improves safety and stability, and meets usage requirements.
Smart Images
Figure CN223838928U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of shielding door technology, and in particular relates to a radiation shielding door. Background Technology
[0002] Radiation shielding doors are devices used to block radiation, primarily to protect personnel and the environment from radiation hazards. They are commonly used in nuclear facilities, medical facilities, and other locations requiring radiation protection. The main materials of radiation shielding doors include lead plates, lead-containing materials, and boron-containing polyethylene. Their working principle mainly relies on the radiation absorption characteristics of the materials placed inside the door. For example, boron-containing polyethylene, by adding boron, can absorb neutrons and release alpha particles, thereby slowing down the energy of neutrons and reducing their penetrating power. Lead materials absorb and weaken radiation through their high density.
[0003] Currently, in typical usage scenarios, radiation shielding doors are closed using only horizontal locks. Considering safety during use, locking only one side of the door can result in incomplete closure, meaning the door's stability after closing is poor. Furthermore, a single lock cannot ensure that all edges of the door are evenly stressed and closed, which can easily lead to gaps and fail to meet usage requirements. Utility Model Content
[0004] This utility model addresses the technical problems existing in the closing process of the aforementioned radiation shielding door by proposing a radiation shielding door that is reasonably designed, simple in structure, easy to process, and can rely on linkage effect to achieve multi-point locking of the door body, thereby ensuring uniform force on each edge of the door leaf, reducing the possibility of gaps, ensuring safety in use, and meeting the needs of use.
[0005] To achieve the above objectives, the present invention provides a radiation shielding door, comprising a radiation shielding door body, a door frame on the outer side of the radiation shielding door body, and a door lock mechanism with multi-point locking function inside the radiation shielding door body. The door lock mechanism includes a front shell, a mounting shell on one side of the front shell, and a rear shell on one side of the mounting shell. A vertical locking mechanism for locking the radiation shielding door body vertically is provided inside the mounting shell. The vertical locking mechanism includes a rotating shaft located inside the mounting shell, a rotating block connected to the rotating shaft inside the front shell, a gear on the outer side of the rotating shaft, and Z-shaped plug-in plates arranged symmetrically about the rotating shaft inside the mounting shells on both sides of the gear. The upper and lower sides of the two plug-in plates slide vertically relative to the interior of the radiation shielding door body. Multiple rectangular fitting slots are provided in the plug-in plates near the gear. A horizontal locking mechanism for locking the radiation shielding door body horizontally is provided on one side of the rotating shaft.
[0006] Preferably, the lateral locking mechanism includes a connecting shaft connected to one end of the rotating shaft, a locking disc with an elliptical shape is provided on one side of the connecting shaft, and a locking pin is provided in the rear shell located on one side of the locking disc.
[0007] Preferably, the locking pin includes a T-shaped movable rod with one side in contact with the outer periphery of the locking disc. A wedge-shaped locking block is provided on the outer side of the movable rod. A telescopic spring is provided on the outer periphery of the movable rod located inside the rear housing. A locking groove is provided in the door frame body corresponding to the locking block.
[0008] Preferably, the rotating block has a plug-in hole, the rotating block outside the plug-in hole has a horizontal groove, and the rotating block corresponding to the horizontal groove also has a square groove. The door lock mechanism has a plug-in rod on its outside, one end of the plug-in rod is cylindrical, and the end of the plug-in rod is provided with a plug plate that matches the square groove.
[0009] Compared with the prior art, the advantages and positive effects of this utility model are as follows:
[0010] 1. This utility model provides a radiation shielding door, which utilizes a door locking mechanism including a vertical locking mechanism and a horizontal locking mechanism to lock the door body vertically and horizontally, respectively. On the one hand, it achieves multi-point locking of the door body, ensuring the stability of the door body; on the other hand, it avoids excessive force at a single point by distributing the pressure at the locking points, and ensures uniform fit between the door body and the door frame around the entire circumference, reducing radiation leakage caused by local gaps, improving the safety of the device and meeting usage requirements. This device is reasonably designed, simple in structure, easy to process, and can rely on linkage effect to achieve multi-point locking of the door body, ensuring uniform force at each edge of the door leaf, reducing the possibility of gaps, ensuring safety in use, and meeting usage requirements. Attached Figure Description
[0011] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0012] Figure 1 This is a schematic diagram of the structure of a radiation shielding door;
[0013] Figure 2 This is a structural schematic diagram of a radiation shielding door from another perspective.
[0014] Figure 3 This is a schematic diagram of part of the internal structure of a radiation shielding door;
[0015] Figure 4 A schematic diagram of part of the internal structure of the door lock mechanism;
[0016] Figure 5 A schematic diagram of part of the internal structure of the door lock mechanism from another perspective;
[0017] In the above figures, 1. Radiation shielding door body; 2. Door frame; 21. Locking groove; 3. Door lock mechanism; 4. Front shell; 5. Mounting shell; 6. Rear shell; 7. Vertical locking mechanism; 71. Rotating shaft; 72. Rotating block; 721. Insertion hole; 722. Horizontal groove; 723. Square groove; 73. Gear; 74. Insertion plate; 741. Adaptor groove; 8. Horizontal locking mechanism; 81. Connecting shaft; 82. Locking disc; 83. Locking pin; 831. Moving rod; 832. Locking block; 833. Telescopic spring; 9. Insertion rod; 91. Insertion plate. Detailed Implementation
[0018] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.
[0019] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.
[0020] Examples, such as Figures 1-5As shown, a radiation shielding door includes a radiation shielding door body 1 and a door frame 2 on the outer side of the radiation shielding door body 1. The aforementioned components are all existing, mature, and commonly used technologies, and their specific structural composition will not be elaborated further. A corresponding lead plate is installed in the radiation shielding door body 1, located outside the door lock mechanism 3, to provide a certain degree of isolation and prevent insufficient radiation shielding. This technology is readily available to those skilled in the art and will not be elaborated upon here. To achieve multi-point locking of the door and ensure its stability, the radiation shielding door body 1 is equipped with a multi-point locking mechanism. The door lock mechanism 3 includes a front shell 4, a mounting shell 5 on one side of the front shell 4, and a rear shell 6 on one side of the mounting shell 5. The mounting shell 5 is located inside the door body, while the front shell 4 and rear shell 6 are located on the outer sides of the door body to ensure structural stability. Furthermore, the mounting shell 5 contains a vertical locking mechanism 7 that can lock the radiation shielding door body 1 vertically. The vertical locking mechanism 7 includes a rotating shaft 71 located inside the mounting shell 5. The connection between the rotating shaft 71 and the mounting shell 5 has a certain degree of damping to prevent free rotation. The front shell 4 contains a rotating block 72 connected to the rotating shaft 71. A gear 73 is provided, and within the mounting housings 5 on both sides of the gear 73, there are Z-shaped insertion plates 74 arranged symmetrically with respect to the pivot 71. The insertion plates 74 are installed inside the door body, and the door body material within the movement range of the insertion plates 74 has internal grooves to facilitate their vertical movement, ensuring smooth movement. Corresponding limiting holes are also provided for the vertical movement of the insertion plates 74 to prevent offset. The upper and lower sides of the two insertion plates 74 slide vertically relative to the interior of the radiation shielding door body 1. Furthermore, the two insertion plates 74 have the ability to move closer or further apart. When they move further apart, the upper one can be inserted into the door frame 2. The middle and lower parts can be inserted into the ground, or when the door frame 2 is rectangular, they can be inserted into the lower part of the door frame 2. When they move closer together, the lock can be released. The operation is simple and convenient, and the functionality is strong. The insertion plate 74 near the gear 73 has multiple rectangular adapter slots 741. Specifically, the rotating block 72 receives external driving force and acts on the gear 73 through the rotating shaft 71, so that the gear 73 can rotate circumferentially. When the gear 73 rotates, its teeth will cooperate with the adapter slots 741, which will drive the left and right insertion plates 74 to move closer or further apart in the vertical direction, ensuring the realization of the opening and closing or locking function and ensuring the functionality of the device.A horizontal locking mechanism 8 is provided on one side of the pivot 71, which can lock the radiation shielding door body 1 in the horizontal direction. The horizontal locking mechanism 8 can be linked with the vertical locking mechanism 7. When the vertical direction is locked, the horizontal locking mechanism 8 can be controlled to lock the door body in the horizontal direction. In this way, the door lock mechanism 3 locks the door body in the vertical and horizontal directions respectively. On the one hand, it realizes the locking of the door body at multiple points to ensure the stability of the door body. On the other hand, it avoids excessive force at a single point by dispersing the pressure of the locking points, and ensures uniform fit between the door body and the door frame around the entire circumference, reducing radiation leakage caused by local gaps, improving the safety of the device and meeting the usage requirements.
[0021] In the above process: the established door lock mechanism 3, which includes a vertical locking mechanism 7 and a horizontal locking mechanism 8, locks the door body vertically and horizontally respectively. On the one hand, it achieves multi-point locking of the door body, ensuring the stability of the door body; on the other hand, it avoids excessive force on a single point by distributing the pressure of the locking points, and ensures uniform fit between the door body and the door frame around the entire circumference, reducing radiation leakage caused by local gaps, improving the safety of the device and meeting the usage requirements. This device is reasonably designed, simple in structure, easy to process, and can rely on the linkage effect to achieve multi-point locking of the door body, ensuring uniform force on each edge of the door leaf, reducing the possibility of gaps, ensuring safety of use, and meeting the usage requirements.
[0022] To achieve horizontal locking of the door, the horizontal locking mechanism 8 includes a connecting shaft 81 connected to one end of the rotating shaft 71. An elliptical locking disc 82 is provided on one side of the connecting shaft 81. A locking pin 83 is provided in the rear shell 6 located on one side of the locking disc 82. Specifically, when the rotating block 72 is driven to rotate, the rotating shaft 71 will also rotate and act on the connecting shaft 81. The rotation of the connecting shaft 81 will then drive the locking disc 82 to rotate. The outer dimensions of the locking disc 82 will contact the locking pin 83, causing it to move horizontally, i.e., closer to or further away from the locking groove 21, thereby achieving corresponding locking or opening / closing operations. The operation is simple and convenient, and the functionality is strong.
[0023] To further improve the rationality of the device setup, the locking pin 83 includes a T-shaped movable rod 831, one side of which contacts the outer periphery of the locking disc 82. A wedge-shaped locking block 832 is provided on the outer side of the movable rod 831. A telescopic spring 833 is provided on the outer periphery of the movable rod 831 located inside the rear housing 6. A locking groove 21 is provided in the door frame 2 corresponding to the locking block 832. Specifically, when the elliptical locking disc 82 rotates with the connecting shaft 81, the change in its outer periphery will act on the movable rod 831. When the contact area between the locking disc 82 and the movable rod 831 gradually transitions from a small size to a large size, It will push the moving rod 831 outward until the locking block 832 and the locking groove 21 cooperate to complete the locking. When it is necessary to release the door lock mechanism 3 from the door body, the locking disc 82 rotates in the opposite direction, and the contact point between the two transitions from a large size to a small size. At the same time, the moving rod 831 is also reset under the action of the telescopic spring 833, waiting for the next locking. The above operation is simple and convenient, and has strong functionality. It should be further explained that the outer periphery of the locking disc 82 and the contact point of the moving rod 831 are protected with corresponding protective pads, which can not only ensure the smoothness of the cooperation process between the two, but also reduce the possibility of damage and meet the use requirements.
[0024] To ensure the locking function is fully realized and to allow for sufficient force application, a insertion hole 721 is provided in the rotating block 72. A horizontal groove 722 is provided in the rotating block 72 outside the insertion hole 721, and a square groove 723 is also provided in the rotating block 72 corresponding to the horizontal groove 722. An insertion rod 9 is provided on the outside of the door lock mechanism 3. One end of the insertion rod 9 is cylindrical, and the end of the insertion rod 9 is provided with an insertion plate 91 that matches the square groove 723. Specifically, when it is necessary to close the radiation shielding door body 1, the insertion rod 9 is inserted into the rotating block 72, especially the insertion plate 91 is aligned with the square groove 723 first. The insertion rod 9 slowly enters and aligns with the insertion hole 721, and the insertion plate 91 also enters the horizontal groove 72. The two locations can limit the position of the plug rod to a certain extent. When the plug rod 9 is rotated, the plug plate 91 first abuts against one end of the transverse groove 722, and then continues to apply force to rotate it until the rotating block 72 rotates and acts on the rotating shaft 71. This provides convenient conditions for the subsequent use of the door lock mechanism 3, thereby ensuring the realization of the locking action. Furthermore, after the door lock mechanism 3 completes the corresponding locking work, the plug rod 9 can be removed from the rotating block 72 to avoid accidental contact with the door lock mechanism 3 and affecting the locking effect of the anti-radiation shielding door body 1. When it is necessary to open the door lock mechanism 3, the plug rod 9 is reinserted into the rotating block 72 and rotated in the opposite direction. The operation is simple and convenient, and the functionality is strong.
[0025] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.
Claims
1. A radiation shielding door, comprising a radiation shielding door body, wherein a door frame is provided on the outer side of the radiation shielding door body, characterized in that, The radiation shielding door body is equipped with a door lock mechanism with multi-point locking function. The door lock mechanism includes a front shell, a mounting shell on one side of the front shell, and a rear shell on one side of the mounting shell. The mounting shell is equipped with a vertical locking mechanism that can lock the radiation shielding door body vertically. The vertical locking mechanism includes a rotating shaft set in the mounting shell. The front shell is equipped with a rotating block connected to the rotating shaft. A gear is set on the outside of the rotating shaft. The mounting shells on both sides of the gear are equipped with plug-in plates that are centrally symmetrical about the rotating shaft and have a Z-shaped design. The upper and lower sides of the two plug-in plates slide vertically relative to the inside of the radiation shielding door body. The plug-in plate near the gear has multiple rectangular adapter slots. One side of the rotating shaft is equipped with a horizontal locking mechanism that can lock the radiation shielding door body horizontally.
2. The radiation shielding door according to claim 1, characterized in that, The lateral locking mechanism includes a connecting shaft connected to one end of the rotating shaft. An elliptical locking disc is provided on one side of the connecting shaft, and a locking pin is provided in the rear housing located on one side of the locking disc.
3. The radiation shielding door according to claim 2, characterized in that, The locking pin includes a T-shaped movable rod, one side of which contacts the outer periphery of the locking disc. A wedge-shaped locking block is provided on the outer side of the movable rod. A telescopic spring is provided on the outer periphery of the movable rod located inside the rear housing. A locking groove is provided in the door frame body corresponding to the locking block.
4. A radiation shielding door according to claim 3, characterized in that, The rotating block has a plug hole, and the rotating block outside the plug hole has a horizontal groove. The rotating block corresponding to the horizontal groove also has a square groove. The door lock mechanism has a plug rod on its outside. One end of the plug rod is cylindrical, and the end of the plug rod has a plug plate that matches the square groove.