Radiation-proof vertical hinged door system

Abstract

The invention relates to an anti-radiation vertical hinged door system which comprises a radiation protection part and a door leaf. The radiation protection part is slidably arranged in the ground groove in a lifting manner, and the radiation protection part is provided with a telescopic lock rod; the door leaf comprises a concave part, a first electromagnet, a second electromagnet, an electromagnetic main valve, a first electromagnetic valve, a second electromagnetic valve, a first inductor, a second inductor, a lock hole and a ray baffle. Through deep integration of electromagnetic-mechanical composite driving, intelligent induction control and precise structure design, breakthrough improvement is achieved in the aspects of radiation protection performance, system reliability, use convenience and the like, and the intelligent induction type radiation protection device is particularly suitable for high-standard radiation protection places needing high-frequency opening and closing such as hospital radiology departments and nuclear power stations.

Description

Technical Field

[0001] The present invention relates to the technical field of radiation protection doors, in particular to the field of radiation protection swing doors. Background Art

[0002] In places involving applications of ionizing radiation such as nuclear medicine, radiotherapy, and industrial flaw detection, radiation protection doors, as key equipment for shielding rays, their sealing performance directly affects the radiation protection effect. Conventional radiation protection doors generally have problems of ray leakage at the door seams. Existing technologies mostly use fixed lead baffles or lifting shielding structures for protection, but there are still significant defects.

[0003] The existing technologies mainly have the following forms: First, when the conventional radiation protection door is in the closed state, there is inevitably a technological gap of 5 - 10 mm between the door body and the ground, which becomes the main channel for ray leakage. Although some improved solutions use a sunken lead plate structure, which lifts the lead plate through a hydraulic device to block the door seam when closing the door, this structure has problems such as poor ground flatness and easy jamming of the lifting mechanism. Especially during the transportation of equipment, it is easy to cause deformation of the lead plate structure, resulting in shielding failure. Second, some lifting protection devices using electromagnetic adsorption can achieve the lifting function of the protection body, but relying on electromagnetic holding force to maintain the position of the protection body for a long time has problems of high continuous energy consumption and the risk of the protection body falling during sudden power failure. Although there are improved solutions that attempt to use an auxiliary mechanical locking device, there are generally problems of asynchronous electromagnetic - mechanical conversion, resulting in a short - term drop phenomenon of the protection body after the electromagnetic force is removed. Third, existing automatic protection systems mostly use independent sensors and control units. Usually, the sensor signals need to be parsed by the central processor and then the actions of the solenoid valve and the mechanical locking device are executed step by step, resulting in system response delay. This timing control method is prone to asynchrony between the lifting of the protection body and the movement of the door body when quickly opening and closing the door body, and the complex control logic increases the probability of failure.

[0004] In summary, the existing radiation protection doors still have the following technical bottlenecks in door seam shielding, structural stability, and automatic control: (1) Poor ground adaptability of the dynamic sealing device affects the passage of personnel and equipment; (2) Insufficient coordination control accuracy between electromagnetic holding and mechanical locking; (3) Response delay of multi - system linkage affects protection reliability. Summary of the Invention

[0005] In view of the above - mentioned technical bottlenecks, it is urgent to develop a radiation protection swing door system that can achieve automatic and precise control, has a dual holding mechanism, and strong ground adaptability.

[0006] A radiation-proof swing door system, comprising a radiation protection member and a door leaf; the radiation protection member is slidably arranged in a ground groove in a liftable manner, and the radiation protection member is provided with a telescopic lock rod; the door leaf includes a recess, an electromagnet I, an electromagnet II, an electromagnetic main valve, an electromagnetic valve I, an electromagnetic valve II, an inductor I, an inductor II, a lock hole and a radiation baffle; the recess is arranged at the bottom of the door leaf parallel to the width direction of the door leaf, and the lock hole is arranged in the two side walls of the recess along the thickness direction of the door leaf; the electromagnet I is arranged on the top surface of the recess, and the electromagnet II is arranged at the inner end of the lock hole; the electromagnet I is magnetically matched with the radiation protection member, and the electromagnet II is magnetically matched with the telescopic lock rod; the electromagnetic main valve is electrically connected to the electromagnetic valve I and the electromagnetic valve II at the same time, and the electromagnetic main valve can control the electromagnetic valve I and the electromagnetic valve II at the same time when the door leaf is in the open state, and can only control the electromagnetic valve I when the door leaf is in the closed state; the electromagnetic valve I and the electromagnetic valve II are electrically connected to the electromagnet I and the electromagnet II respectively; the inductor I and the inductor II are arranged in the lock hole and control the electromagnetic valve I and the electromagnetic valve II respectively; the radiation baffles are arranged on the inner side and the outer side of the door leaf and in the radiation protection member respectively.

[0007] Further, the radiation protection member of the radiation-proof swing door system includes a top plate and legs, the legs are provided with radiation baffles, and the legs are inserted into the cavity of the ground groove.

[0008] Further, the distance from the bottom surface of the electromagnet I to the top surface of the cavity is less than the height of the radiation protection member.

[0009] Further, the height of the radiation protection member of the radiation-proof swing door system is equal to the depth of the ground groove.

[0010] Further, a clamping block is arranged on the bottom surface of the extending end of the telescopic lock rod of the radiation-proof swing door system, and a convex platform is also arranged at the bottom of the lock hole near the hole mouth end.

[0011] Further, the height of the lock hole of the radiation-proof swing door system is not less than the sum of the height of the telescopic lock rod and twice the height of the clamping block, and the clamping block and the convex platform have equal heights.

[0012] Further, the convex platform and the clamping block of the radiation-proof swing door system are clamped and matched, the upper edge of the outer side surface of the clamping block inclines towards the extending direction of the movable rod, and the upper edge of the outer side surface of the convex platform inclines towards the inserting direction of the movable rod.

[0013] Further, the inductor I of the radiation-proof swing door system is arranged at the top of the lock hole, and the inductor II is arranged at the bottom of the lock hole.

[0014] Further, the telescopic lock rods of the radiation-proof swing door system are arranged in pairs on both sides of the top plate along the opening and closing direction of the door leaf, and the number of arrangements is not less than 4 pairs; the telescopic lock rod includes a movable rod and a sleeve, the sleeve is sleeved outside the movable rod and is connected by an elastic member, the movable rod.

[0015] A control method for a radiation-proof flat door system. When closing the door leaf, the electromagnetic main valve controls the opening of solenoid valve 1 and solenoid valve 2, and electromagnet 1 and electromagnet 2 are energized to operate. The radiation protection component rises under the magnetic attraction of electromagnet 1 and fits against the bottom surface of electromagnet 1. The telescopic lock rod of the radiation protection component is inserted into the lock hole under the magnetic attraction of electromagnet 2. When the telescopic lock rod is inserted into the lock hole, it cuts sensor 1, and sensor 1 closes solenoid valve 1, and electromagnet 1 is de-energized. The radiation protection component descends under the action of gravity. The bottom block of the telescopic lock rod of the radiation protection component contacts sensor 2, solenoid valve 2 is closed, and electromagnet 2 is de-energized. The telescopic lock rod makes the block snap onto the convex platform under the action of the elastic member, and the radiation protection component completes the sealing of the door gap.

[0016] Further, when opening the door leaf, the electromagnetic main valve is opened, solenoid valve 1 is opened, and electromagnet 1 is energized to operate. The radiation protection component rises under the magnetic attraction of electromagnet 1 and fits against the bottom surface of electromagnet 1. At this time, the telescopic lock rod retracts into the radiation protection component under the action of the elastic member. When retracting, the telescopic lock rod cuts sensor 1, solenoid valve 1 is closed, and electromagnet 1 is de-energized. The radiation protection component descends to the ground groove under the action of gravity.

[0017] The present invention has the following advantages and beneficial effects compared with the prior art:

[0018] 1. This technology uses the magnetic attraction of the electromagnet to quickly drive the precise lifting of the radiation protection component. After power-off, it switches to mechanical clamping and limiting (self-locking of the block and the inclined surface of the convex platform), realizing a dual-mode locking mechanism of electromagnetic adsorption + mechanical clamping. The electromagnetic drive stage ensures that the protection component closely fits the door leaf, ensuring the reliability of the lifting of the protection component. The mechanical clamping relies on gravity and the pressure of the elastic member to maintain long-term sealing, avoiding the energy consumption and heating problems caused by the continuous power supply of traditional electromagnets. At the same time, the failure probability of the mechanical structure is low. Even in the event of a sudden power failure, the door gap can still be shielded, improving the comprehensive reliability of the system and taking into account high-efficiency response and long-term safety.

[0019] 2. Through the coordinated control of the electromagnetic main valve and the double electromagnets, the intelligent linkage between the door leaf state (open / closed) and the action of the radiation protection component is realized. When the door leaf is closed, the magnetic attraction cooperation between electromagnet 1 and the radiation protection body, and between electromagnet 2 and the telescopic lock rod can accurately control the lifting timing of the protection component, solving the problem of the lag in response of traditional mechanical linkage devices.

[0020] 3. Through the linkage between the sensor in the lock hole and the movement of the telescopic lock rod, a non-contact intelligent closed-loop control is constructed. When the lock rod is inserted, it triggers the top sensor to cut off the power supply of electromagnet 1. When the protection component descends, the bottom sensor triggers the power-off of electromagnet 2, realizing the precise time-sharing power-off of the electromagnet, achieving a seamless conversion from electromagnetic adsorption to mechanical clamping and from clamping unlocking to the restoration of the protection body, reducing the single energy consumption by 65%. The sensor replaces the mechanical limit switch to eliminate wear and extend the service life.

[0021] 4. By limiting the distance from the bottom surface of the electromagnet to the top surface of the cavity (≤ 90% of the height of the protective part) and designing the ground groove to have the same depth, the ground is made flat when the protective part is fully retracted, and the protective part does not separate from the ground when it is lifted, eliminating the tripping risk during personnel passage and ensuring the accurate lifting position of the protective part.

[0022] Through the deep integration of electromagnetic-mechanical composite drive, intelligent induction control and precision structure design, the present invention has made breakthrough improvements in aspects such as radiation protection performance, system reliability, and use convenience, and is particularly suitable for high-standard radiation protection places such as hospital radiology departments and nuclear power plants that require high-frequency opening and closing.

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for the embodiments. It should be understood that the following drawings only show some embodiments of the present invention, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other related drawings can also be obtained based on these drawings. Brief Description of the Drawings

[0024] Figure 1 It is a schematic diagram of a radiation protection flat door;

[0025] Figure 2 It is a schematic diagram of a radiation protection part;

[0026] Figure 3 It is a schematic diagram of a telescopic locking rod;

[0027] Figure 4 It is a schematic diagram of the bottom of the door leaf in the A-A section;

[0028] Figure 5 It is a schematic diagram of the working state of the radiation protection part. Detailed Embodiments

[0029] To make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents the selected embodiments of the present invention.

[0030] Such as Figures 1-4As shown, the radiation-proof swing door system includes a radiation protection member 1 and a door leaf 2; the radiation protection member 1 is slidably arranged in a ground groove 3 in a liftable manner, and the radiation protection member 1 is provided with a telescopic locking rod 13; the door leaf 2 includes a recess 21, an electromagnet 1 23, an electromagnet 2 24, an electromagnetic main valve, an electromagnetic valve 1, an electromagnetic valve 2, an inductor 1 25, an inductor 26, a locking hole 27 and a radiation baffle 28; the recess 21 is arranged at the bottom of the door leaf 2 and is parallel to the width direction of the door leaf 2, and the locking hole 27 is arranged at the recess 21 along the thickness direction of the door leaf 2. Inside the two side walls; electromagnet 1 23 is arranged on the top surface of the recess 21, and electromagnet 2 24 is arranged at the inner end of the lock hole 27; electromagnet 1 23 is magnetically matched with the radiation protection member 1, and electromagnet 2 24 is magnetically matched with the telescopic lock rod 13; the electromagnetic main valve is electrically connected to both electromagnetic valve 1 and electromagnetic valve 2 at the same time, and the electromagnetic main valve can control both electromagnetic valve 1 and electromagnetic valve 2 when the door leaf 2 is in the open state, and can only control electromagnetic valve 1 when the door leaf 2 is in the closed state; specifically, electromagnetic valve 1 is connected to the electromagnetic main valve when the door leaf 2 is in the open or closed state. For electromagnetic valve 2, sensor 3 is also arranged on the door leaf 2, and sensor 3 is electrically connected to the electromagnetic main valve. Sensor 3 detects the state of the door leaf 2. When the door leaf 2 is in the closed static state, sensor 3 controls the electromagnetic main valve to disconnect from electromagnetic valve 2. Solenoid valve 1 and solenoid valve 2 are electrically connected to electromagnet 1 23 and electromagnet 2 24 respectively; sensor 1 25 and sensor 2 26 are arranged in the lock hole 27 and control solenoid valve 1 and solenoid valve 2 respectively; radiation baffle 28 is arranged on the inner and outer sides of door leaf 2 and radiation protection part 1 respectively. The opening state of the solenoid valve is controlled by the main solenoid valve in the open and closed state respectively, thereby controlling the electromagnets respectively, so that electromagnet 1 and electromagnet 2 are controlled to magnetically attract radiation protection part 1 and telescopic locking rod 13 as needed, and the radiation protection part is raised and limited, and the door gap is blocked. In addition, a sensor is arranged in the lock hole 27 to control the solenoid valve, so that the purpose of powering off the electromagnet is achieved as needed under the movement of the locking rod, and the lifting and lowering of the radiation protection part is completed.

[0031] In some embodiments, the radiation protection component 1 of the radiation proof swing door system includes a top plate 12 and a leg 11, the leg 11 is provided with a radiation baffle 28, the leg 11 is inserted into a cavity of a ground groove 3, a ball bearing is provided on the leg 11, and a slide rail cooperating with the ball bearing is vertically provided in the cavity.

[0032] In some schemes, the distance from the bottom surface of the electromagnet 23 of the radiation-proof swing door system to the top surface of the cavity is less than the height of the radiation protection member 1. A cavity is set on the ground to accommodate the legs 11, and the distance from the ground of the electromagnet 23 to the top surface of the cavity is limited, so that the legs 11 of the radiation protection member will not be separated from the cavity. In addition, the setting of the ball bearing and the slide rail ensures the smooth lifting and lowering of the radiation protection member.

[0033] In some solutions, the height of the radiation protection component 1 of the radiation protection flat door system is equal to the depth of the ground groove 3. Thus, when the door is open, the ground is smooth without protrusions.

[0034] In some solutions, a clamping block 132 is provided on the bottom surface of the protruding end of the telescopic lock rod 13 of the radiation protection flat door system, and a boss 22 is also provided at the bottom of the lock hole 27 near the orifice end.

[0035] In some solutions, the height of the lock hole 27 of the radiation protection flat door system is not less than the sum of the height of the telescopic lock rod 13 and twice the height of the clamping block 132, and the clamping block 132 and the boss 22 have equal heights. The setting of the height of the lock hole ensures that the telescopic lock rod 13 can be smoothly inserted into the lock hole 27, and after the electromagnet is powered off, the radiation protection component 1 descends, so that the clamping block and the boss complete the clamping fit.

[0036] In some solutions, the boss 22 of the radiation protection flat door system is in clamping fit with the clamping block 132. The upper edge of the outer side surface of the clamping block 132 is inclined in the extending direction of the movable rod 131, and the upper edge of the outer side surface of the boss 22 is inclined in the inserting direction of the movable rod 131. The setting of the inclined surface ensures that the insertion of the telescopic lock rod is smoother.

[0037] In some solutions, the first sensor 25 of the radiation protection flat door system is arranged at the top of the lock hole 27, and the second sensor 26 is arranged at the bottom of the lock hole 27. The setting of the sensor positions ensures that the telescopic lock rod can cut or contact the sensor, thereby controlling the corresponding solenoid valve, and finally controlling the first electromagnet and the second electromagnet to complete the lifting and clamping of the radiation protection component.

[0038] In some solutions, the telescopic lock rods 13 of the radiation protection flat door system are arranged in pairs on both sides inside the top plate 12 along the opening and closing direction of the door leaf 2, and the number of settings is not less than 4 pairs; the telescopic lock rod 13 includes a movable rod 131 and a sleeve. The sleeve is sleeved outside the movable rod 131 and is connected to the movable rod 131 through an elastic member 133. A pulley group is arranged at one end of the movable rod 131 away from the elastic member 133. After the movable rod 131 is inserted into the lock hole 27, when the first electromagnet 23 is powered off, the radiation protection component 1 descends more smoothly.

[0039] As Figure 5 shown, the control method of the radiation protection flat door system

[0040] When closing the door leaf 2, the electromagnetic main valve controls the opening of the first solenoid valve and the second solenoid valve. The first electromagnet 23 and the second electromagnet 24 are energized and operate. The radiation protection component 1 rises under the magnetic attraction of the first electromagnet 23 and fits with the bottom surface of the first electromagnet 23. The telescopic lock rod 13 of the radiation protection component 1 is inserted into the lock hole 27 under the magnetic attraction of the second electromagnet 24 (as Figure 5As shown in the left figure, when the telescopic lock rod 13 is inserted into the lock hole 27, it cuts the first sensor 25. The first sensor 25 closes the first solenoid valve, and the first electromagnet 23 is powered off. The radiation protection part 1 descends under the action of gravity. The clamping block 132 at the bottom of the telescopic lock rod 13 of the radiation protection part 1 contacts the second sensor 26, the second solenoid valve closes, and the second electromagnet 24 is powered off. The telescopic lock rod 13 makes the clamping block 132 clamped to the boss 22 under the action of the elastic member 133, and the radiation protection part 1 completes the sealing of the door gap (as Figure 5 shown in the right figure);

[0041] When the door leaf 2 is opened, the main solenoid valve is opened, the first solenoid valve is opened, and the first electromagnet 23 is powered on and operates. The radiation protection part 1 rises under the magnetic attraction of the first electromagnet 23 and fits with the bottom surface of the first electromagnet 23. At this time, the telescopic lock rod 13 retracts into the radiation protection part 1 under the action of the elastic member 133. When retracting, the telescopic lock rod 13 cuts the first sensor 25, the first solenoid valve closes, and the first electromagnet 23 is powered off. The radiation protection part 1 descends to the ground groove 3 under the action of gravity.

[0042] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A radiation-proof swing door system, characterized in that: The invention comprises a radiation protection part and a door leaf; the radiation protection part is slidably arranged in a groove on the ground and can be lifted and lowered, and the radiation protection part is provided with a telescopic locking rod; the door leaf comprises a recess, an electromagnet 1, an electromagnet 2, an electromagnetic main valve, an electromagnetic valve 1, an electromagnetic valve 2, an inductor 1, an inductor 2, a lock hole and a radiation baffle; the recess is arranged at the bottom of the door leaf and is parallel to the width direction of the door leaf, and the lock hole is arranged in the two side walls of the recess along the thickness direction of the door leaf; the electromagnet 1 is arranged on the top surface of the recess, and the electromagnet 2 is arranged at the inner end of the lock hole; the electromagnet 1 and the radiation The radiation protection piece is magnetically matched, and the electromagnet 2 is magnetically matched with the telescopic locking rod; the electromagnetic main valve is electrically connected to the electromagnetic valve 1 and the electromagnetic valve 2 at the same time. The electromagnetic main valve can control the electromagnetic valve 1 and the electromagnetic valve 2 at the same time when the door leaf is open, and can only control the electromagnetic valve 1 when the door leaf is closed; the electromagnetic valve 1 and the electromagnetic valve 2 are electrically connected to the electromagnet 1 and the electromagnet 2 respectively; the sensor 1 and the sensor 2 are arranged in the lock hole and control the electromagnetic valve 1 and the electromagnetic valve 2 respectively; the radiation baffles are respectively arranged on the inside and outside of the door leaf and in the radiation protection piece.

2. The radiation-proof swing door system according to claim 1, characterized in that: The radiation protection member comprises a top plate and supporting legs, wherein the supporting legs are provided with ray baffles and the supporting legs are inserted into the cavity of the ground groove.

3. The radiation-proof swing door system according to claim 2, characterized in that: The distance from the bottom surface of the electromagnet of the radiation-proof swing door system to the top surface of the cavity is smaller than the height of the radiation protection component.

4. The radiation-proof swing door system according to any one of claims 1 to 3, characterized in that: The height of the radiation shield of the radiation-proof swing door system is equal to the depth of the ground groove.

5. The radiation-proof swing door system according to any one of claims 1 to 3, characterized in that: A clamping block is arranged on the bottom surface of the extended end of the telescopic lock rod of the radiation-proof flat door system, and a boss is also arranged at the bottom of the lock hole near the hole end.

6. The radiation-proof swing door system according to claim 5, characterized in that: The lock hole height of the radiation-proof swing door system shall not be less than the sum of the telescopic lock rod height and twice the block height, and the block height is equal to the boss height.

7. The radiation-proof swing door system according to claim 5, characterized in that: The boss of the radiation-proof swing door system is engaged with the clamping block, the upper edge of the outer surface of the clamping block is inclined toward the extending direction of the movable rod, and the upper edge of the outer surface of the boss is inclined toward the inserting direction of the movable rod.

8. The radiation-proof swing door system according to claim 1, characterized in that: The first sensor of the radiation-proof swing door system is arranged at the top of the lock hole, and the second sensor is arranged at the bottom of the lock hole.

9. The radiation-proof swing door system according to claim 2, characterized in that: The telescopic locking rods of the radiation-proof swing door system are arranged in pairs on both sides of the top plate along the opening and closing direction of the door leaf, and the number of pairs is not less than 4; the telescopic locking rods include a movable rod and a sleeve, the sleeve is sleeved outside the movable rod and connected to the movable rod through an elastic member.

10. A control method for a radiation-proof swing door system, characterized in that: When the door leaf is closed, the electromagnetic main valve controls the electromagnetic valve 1 and the electromagnetic valve 2 to open, and the electromagnet 1 and the electromagnet 2 are energized to operate. The radiation protection part rises and fits the bottom surface of the electromagnet 1 under the magnetic attraction of the electromagnet 1, and the telescopic locking rod of the radiation protection part is inserted into the lock hole under the magnetic attraction of the electromagnet 2. When the telescopic locking rod is inserted into the lock hole, it cuts the sensor 1, and the sensor 1 closes the electromagnetic valve 1. The electromagnet 1 is powered off, and the radiation protection part descends under the action of gravity. The block at the bottom of the telescopic locking rod of the radiation protection part contacts the sensor 2, and the electromagnetic valve 2 is closed. When the power to magnet 2 is cut off, the telescopic locking rod causes the block to be clamped on the boss under the action of the elastic part, and the radiation protection part completes the sealing of the door gap; when the door leaf is opened, the main electromagnetic valve is opened, the solenoid valve 1 is opened, the electromagnet 1 is energized and operated, and the radiation protection part rises and fits the bottom surface of the electromagnet 1 under the magnetic attraction of the electromagnet 1. At this time, the telescopic locking rod retracts into the radiation protection part under the action of the elastic part. When retracting, the telescopic locking rod cuts the sensor 1, the solenoid valve 1 is closed, the electromagnet 1 is cut off from power, and the radiation protection part descends to the groove on the ground under the action of gravity.

Images