Radiation-proof intelligent protective door for radiology department

Abstract

The invention belongs to the technical field of anti-radiation doors, and provides a radiology department anti-radiation intelligent protective door which comprises a door body assembly which comprises a door frame, a top frame fixed to the top face of the door frame, a sliding groove formed in an inner cavity of the door frame, a door groove penetrating through the sliding groove and a protective door body installed in the sliding groove; the transmission assembly controls the protective door to move in the sliding groove, and a control box is integrated in the top frame; the sealing assembly comprises sealing grooves formed in the two inner walls of the sliding groove, a sealing frame sliding in the sealing grooves, a control transmission unit, a spring, a permanent magnet plate and an excitation plate; by arranging the door body assembly, the transmission assembly and the sealing assembly, dynamic adjustment of radiation sealing is achieved, the gap between the door body and the door frame can be tightly filled, radiation leakage is effectively blocked, meanwhile, the moving stability of the door body and redundant backup of a power system are guaranteed, and the reliability of radiation protection and the stability of equipment operation are greatly improved.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of radiation protection doors, in particular to a radiology department radiation protection intelligent door. BACKGROUND

[0002] In the radiology department diagnosis and treatment scene, ionizing radiation is generated when X-ray, CT and other radiation equipment is working, and if protection is not proper, it is easy to cause radiation injury to medical staff, patients and surrounding personnel. Therefore, as the core equipment for radiation isolation, the sealing performance, automatic control precision and use safety of the radiology department protection door are directly related to the radiation protection effect.

[0003] The existing radiology department protection door mostly uses lead plate as the core shielding material, and realizes opening and closing action through manual push-pull or simple motor driving. With the development of medical technology, the traditional protection door has been difficult to meet the needs of intelligentization and high sealing performance: on the one hand, manual operation is easy to cause radiation leakage due to improper closing; on the other hand, most protection doors rely on mechanical structures (such as sealing strips) to realize sealing, and long-term use is easy to cause sealing gap to increase due to wear and deformation, resulting in decreased protection performance.

[0004] The traditional protection door mostly relies on the rubber sealing strip or lead gasket between the door body and the door frame to realize sealing, and the sealing effect completely depends on mechanical extrusion; long-term use is easy to cause the sealing strip to have decreased elasticity due to aging and wear, or to cause uneven sealing gap due to door body installation error and track deformation, thereby generating radiation leakage risk; it is difficult to dynamically adjust the sealing pressure according to the closing state of the door body, and it is difficult to adapt to the sealing needs under different working conditions.

[0005] Therefore, the person skilled in the art proposes a radiology department radiation protection intelligent door to solve the problems in the background art. SUMMARY

[0006] In order to solve the above technical problems, the application provides a radiology department radiation protection intelligent door to solve the problems in the prior art that the protection door mostly relies on the rubber sealing strip or lead gasket between the door body and the door frame to realize sealing, and long-term use is easy to cause aging and has radiation leakage risk.

[0007] A radiology department radiation protection intelligent door, comprising: a door body assembly comprising a door frame, a top frame fixed to the top surface of the door frame, a sliding groove arranged in the inner cavity of the door frame, a door slot penetrating the sliding groove, and a protection door installed in the sliding groove;

[0008] A transmission assembly controls the displacement of the protection door along the sliding groove, and a control box is integrated in the top frame;

[0009] The sealing assembly comprises a sealing groove formed in the inner wall of the sliding groove, a sealing frame sliding in the sealing groove, a control transmission unit, a spring, a permanent magnet plate and an excitation plate, the inner surface of the sealing groove is provided with the excitation plate, a plurality of springs are connected between the sealing frame and the inner wall of the sealing groove, the permanent magnet plate is fixedly installed on one side wall of the sealing frame, and the excitation plate is electrically connected with the control box through the control transmission unit.

[0010] The protective door is filled with lead plates, and the sealing frame is a lead frame.

[0011] Preferably, a buffer pad is fixedly installed on the inner side wall of the sliding groove, the surface of the buffer pad is provided with a sealing lead plate, a groove is formed in one side of the buffer pad, a trigger piece is installed in the groove, and a starting block is fixed to one side of the buffer pad facing the protective door.

[0012] Preferably, a driving groove is formed in the top wall of the door frame, the driving groove is communicated with the sealing groove, and the control transmission unit is installed in the driving groove.

[0013] Preferably, the transmission assembly comprises a control box, a main driving piece, a speed reducer, an auxiliary driving piece and a fixing assembly, the control box, the main driving piece, the speed reducer and the auxiliary driving piece are installed in the top frame, the output shaft of the main driving piece is connected with the speed reducer, the output shaft of the speed reducer is provided with a first synchronous wheel, the output shaft of the auxiliary driving piece is provided with a second synchronous wheel, a synchronous belt is installed between the first synchronous wheel and the second synchronous wheel, and the synchronous belt is provided with a fixing piece on the top of the protective door.

[0014] Preferably, the fixing piece comprises a transmission bracket fixedly installed on the side of the synchronous belt and a fixing plate fixed to the bottom surface of the transmission bracket, and the fixing plate is screwedly installed on the upper surface of the protective door.

[0015] Preferably, the bottom wall of the top frame is fixedly provided with a limiting rail, a plurality of limiting wheels are installed on the surface of the fixing plate, the limiting wheels are matched with the limiting rail, a guide rail is installed on the bottom surface of the sliding groove, and the protective door is matched with the guide rail.

[0016] Preferably, the front and rear end faces of the door body assembly are both provided with a display screen, an alarm lamp and a monitoring piece, the contact surface of the sealing frame and the protective door is integrated with a pressure sensor, and the pressure sensor is electrically connected with the control box through the control transmission unit.

[0017] Preferably, the bottom surface of the top frame is provided with an emergency stop button.

[0018] Compared with the prior art, the present application has the following beneficial effects:

[0019] 1、The present application is realized by setting door body assembly, transmission assembly and sealing assembly, realizes dynamic adjustment radiation sealing, sealing frame and the lead plate in the protective door form continuous shielding barrier, cooperates adjustable repulsion sealing mechanism, can fill up the gap between door body and door frame tightly, effectively blocks the radiation leakage, at the same time guarantees the stability of door body movement and the redundancy backup of power system, greatly improves the reliability of radiation protection and the stability of equipment operation;

[0020] 2、The present application is realized by setting transmission bracket, fixed plate, limit wheel and limit rail, realizes the efficient transmission of synchronous belt driving force to door body, ensures the accurate guidance and stable operation of door body movement, reduces the sealing gap fluctuation caused by door body deviation, makes sealing frame and door body keep accurate alignment all the time, strengthens the consistency of radiation shielding, at the same time reduces the wear and tear of parts, prolongs the service life of equipment;

[0021] 3、The present application is realized by setting display screen, alarm lamp and emergency stop button, realizes the real-time monitoring and intelligent management of radiation value inside and outside the door, can discover radiation shielding abnormality in time and trigger early warning, cooperates dynamic sealing adjustment mechanism, can quickly reinforce sealing effect, strengthens the radiation safety guarantee under emergency condition, improves the man-machine interaction experience and the convenience of radiation management, ensures that shielding performance is always in reliable state. DETAILED DESCRIPTION

[0022] Figure 1 It is the left view stereoscopic structure schematic diagram of the present application;

[0023] Figure 2 It is the right view stereoscopic structure schematic of the present application;

[0024] Figure 3 It is the internal structure schematic diagram of top frame;

[0025] Figure 4 It is the door frame section structure schematic diagram;

[0026] Figure 5 It is Figure 4 It is the A-A section structure schematic diagram in the middle.

[0027] In the drawing:

[0028] 1, door frame; 2, sliding groove; 3, top frame; 4, alarm lamp; 5, door groove; 6, protective door; 601, starting block; 7, display screen; 8, main driving part; 9, speed reducer; 10, first synchronous wheel; 11, synchronous belt; 12, auxiliary driving part; 13, second synchronous wheel; 14, control box; 15, transmission bracket; 16, fixed plate; 17, limiting rail; 18, limiting wheel; 19, emergency stop button; 20, guide rail; 21, sealing groove; 22, sealing frame; 23, buffer pad; 24, sealing lead plate; 25, triggering part; 26, driving groove; 27, control transmission unit; 28, spring; 29, permanent magnet plate; 30, excitation plate. DETAILED DESCRIPTION

[0029] The embodiments of the present application will be further described in conjunction with the drawings and examples. The following examples are used to illustrate the present application, but cannot be used to limit the scope of the present application.

[0030] Example 1: as shown in the accompanying drawings Figure 1 to the accompanying drawings Figure 5 : the present application provides a radiology department anti-radiation intelligent protective door, which comprises a door body assembly, a transmission assembly and a sealing assembly;

[0031] The door body assembly comprises a door frame 1, a top frame 3 fixed to the top surface of the door frame 1, a sliding groove 2 arranged in the inner cavity of the door frame 1, a door groove 5 penetrating through the sliding groove 2, and a protective door 6 installed in the sliding groove 2. The door frame 1 bears the overall structure and provides a radiation shielding base frame. The top frame 3 integrates transmission and control components and protects the internal mechanism. The sliding groove 2 guides the protective door 6 to slide along a fixed track. When the protective door moves to the door groove 5, complete sealing is achieved. The protective door 6 is filled with lead plates inside, forming a radiation shielding body that can effectively block the ionizing radiation generated in the radiology department, and is the core component to realize the anti-radiation function.

[0032] The transmission assembly comprises a control box 14, a main driving part 8, a speed reducer 9, an auxiliary driving part 12 and a fixed assembly. The control box 14, the main driving part 8, the speed reducer 9 and the auxiliary driving part 12 are all installed in the top frame 3. The output shaft of the main driving part 8 is connected with the speed reducer 9. The output shaft of the speed reducer 9 is provided with a first synchronous wheel 10. The output shaft of the auxiliary driving part 12 is provided with a second synchronous wheel 13. A synchronous belt 11 is installed between the first synchronous wheel 10 and the second synchronous wheel 13. The synchronous belt 11 is provided with a fixed part on the top of the protective door 6. The transmission assembly controls the displacement of the protective door 6 along the sliding groove 2. The top frame 3 is integrated with the control box 14. The inner side wall of the sliding groove 2 is fixedly provided with a buffer pad 23. The surface of the buffer pad 23 is provided with a sealing lead plate 24. A recess is formed in one side of the buffer pad 23. A triggering part 25 is installed in the recess. The protective door 6 is fixedly provided with a starting block 601 on the side facing the buffer pad 23. The starting block 601 corresponds in position to the triggering part 25. The triggering part 25 adopts a travel switch.

[0033] The main driving part 8 and the speed reducer 9 provide power and reduce the rotating speed to ensure the door body to move stably; the synchronous wheel is matched with the synchronous belt 11 to transmit power to the protective door to avoid slipping; the control box 14 is a central control unit to coordinate the door body movement and the sealing adjustment; the auxiliary driving part 12 enhances power redundancy to prevent single point failure;

[0034] After the control box 14 receives the open / close door instruction, the main driving part 8 and the auxiliary driving part 12 are started, the main driving part 8 is a servo motor, and the auxiliary driving part 12 is a redundant standby motor.

[0035] The main driving part 8 outputs power to the speed reducer 9, drives the first synchronous wheel 10 to rotate after the rotating speed is reduced and the torque is increased, the first synchronous wheel 10 drives the second synchronous wheel 13 through the synchronous belt 11 to form double-wheel synchronous transmission; the synchronous belt 11 is rigidly connected with the protective door 6 through the fixing part to convert the rotating movement into the linear displacement of the door body.

[0036] If the main driving part 8 fails, the control box 14 automatically switches to the auxiliary driving part 12 to drive the second synchronous wheel 13 to ensure the door body to normally open and close.

[0037] When the door body approaches the closed position, the buffer pad 23 absorbs the impact, and at the same time, the starting block 601 triggers the trigger part 25 to send the arrival signal to the control box 14, cut off the power supply of the driving part and start the sealing program.

[0038] The sealing assembly comprises a sealing groove 21 opened in the inner walls of the sliding groove 2, a sealing frame 22 sliding in the sealing groove 21, a control transmission unit 27, springs 28, a permanent magnet plate 29 and an excitation plate 30, the sealing groove 21 and the sealing frame 22 are both "frame-shaped structures", the sealing groove 21 is located on the side of the door groove 5, the inner surface of the sealing groove 21 is provided with the excitation plate 30, a plurality of springs 28 are connected between the sealing frame 22 and the inner wall of the sealing groove 21, the permanent magnet plate 29 is fixedly installed on one side wall of the sealing frame 22, the excitation plate 30 is electrically connected with the control box 14 through the control transmission unit 27, the control transmission unit 27 adopts the combination of a relay module, a signal isolator and a wire harness: the relay module is a isolation switch of strong current and weak current, after receiving the low-voltage control signal output by the control box 14, the attracted contact point connects the power supply circuit of the excitation plate 30 to realize "weak current control strong current" and avoid the high-voltage interference of the excitation plate to the precise circuit in the control box; the signal isolator is connected between the control box 14 and the relay module, through the photoelectric isolation or magnetic isolation technology, the signal isolator filters the noise and interference in the signal transmission to ensure the accurate transmission of the control instruction, which is especially suitable for the anti-interference demand in the radiation environment; the wire harness adopts a multi-core shielded cable to respectively transmit the control signal and the excitation current, the shielding layer is grounded to reduce the influence of electromagnetic radiation on the signal and ensure the stability of the power and signal transmission;

[0039] The inner top wall of the door frame 1 is provided with a driving groove 26, the driving groove 26 is communicated with the sealing groove 21, and the driving groove 26 is provided with a control transmission unit 27; the protective door 6 is filled with lead plates, and the sealing frame 22 is a lead frame, and the sealing frame 22 directly contacts the door body to form a radiation sealing interface.

[0040] The pressure sensor is integrated on the contact surface of the sealing frame 22, and the pressure sensor can detect the contact pressure value between the sealing frame 22 and the protective door 6 in real time after the protective door 6 is closed; the pressure sensor is electrically connected with the control box 14 through the control transmission unit 27, and the contact surface pressure data detected is fed back to the control box 14.

[0041] The control box 14 dynamically adjusts the current size of the excitation plate 30 according to the preset pressure threshold value.

[0042] If the pressure is lower than the threshold value, the current is increased to enhance the repulsive force, so that the sealing frame 22 is further attached to the protective door 6, and the pressure is increased.

[0043] If the pressure is higher than the threshold value, the current is reduced to weaken the repulsive force, and the pressure is reduced under the reset action of the spring 28, so as to avoid damage of the sealing frame 22 or the protective door 6 due to excessive extrusion.

[0044] Before the protective door 6 is closed, the sealing frame 22 is slightly attached to the door groove 5 periphery under the pre-pressure of the spring 28, and a basic radiation barrier is formed.

[0045] When the door body is completely closed, the starting block 601 is pressed and combined with the trigger 25, a "door is closed tightly" signal is generated, and is uploaded to the control box 14 through the control transmission unit 27; the control box 14 analyzes the data of the monitoring part (radiation sensor), evaluates the pressure difference between the inside and outside of the door, and simultaneously transmits a signal to the control transmission unit 27, and the control transmission unit 27 outputs a controllable direct current to the excitation plate 30 in the sealing groove 21, so as to generate a directional magnetic field.

[0046] The magnetic field repels the permanent magnet plate 29 on the sealing frame 22, overcomes the resistance of the spring 28, and drives the lead sealing frame 22 to displace to the direction of the protective door 6.

[0047] If it is monitored that the external radiation value does not reach the set radiation threshold value, the excitation current is increased to enhance the local suction force to compensate the sealing pressure; if the door body is pressed too much, the current is reduced to release the spring tension, so as to avoid damage of the structure.

[0048] The current of the excitation plate 30 is closed loop regulated according to the real-time sensor data, so as to ensure that the contact surface pressure of the sealing frame 22 and the protective door 6 is uniform and stable.

[0049] The lead sealing frame 22 and the lead plate in the protective door 6 jointly form a continuous radiation shielding body, and completely block the leakage path.

[0050] As can be seen from the above, when the protective door needs to be closed, the control box 14 controls the main driving member 8 and the auxiliary driving member 12 to work, the main driving member 8 drives the first synchronous wheel 10 to rotate through the speed reducer 9, and the protective door 6 is driven to move along the sliding groove 2 in the closing direction through the fixed assembly under the transmission of the synchronous belt 11 and the second synchronous wheel 13.

[0051] When the protective door 6 moves to be in line with the door groove 5, the starting block 601 on the protective door 6 triggers the trigger piece 25 on the buffer pad 23, and the trigger piece 25 transmits a signal to the control box 14.

[0052] The control box 14 controls the excitation plate 30 to be electrified through the control transmission unit 27, repulsion is generated between the excitation plate 30 and the permanent magnet plate 29, the sealing frame 22 is driven to slide in the sealing groove 21, the sealing frame 22 is tightly attached to the protective door 6, and sealing is achieved. At the same time, the spring 28 plays a buffering and resetting role in the movement of the sealing frame 22.

[0053] When the protective door needs to be opened, the control box 14 controls the excitation plate 30 to be de-energized, the repulsion disappears, the sealing frame 22 is reset under the action of the spring 28, and then the main driving member 8 and the auxiliary driving member 12 are controlled to work in the reverse direction, driving the protective door 6 to move along the sliding groove 2 in the opening direction.

[0054] In the embodiment, the fixed member includes a transmission bracket 15 fixedly installed on the side of the synchronous belt 11, a fixed plate 16 fixedly installed on the bottom surface of the transmission bracket 15, and the fixed plate 16 is screw-threadedly installed on the upper surface of the protective door 6; a limiting rail 17 is fixedly installed on the inner bottom wall of the top frame 3, a plurality of limiting wheels 18 are installed on the surface of the fixed plate 16, and the limiting wheels 18 are matched with the limiting rail 17; a guide rail 20 is installed on the inner bottom surface of the sliding groove 2, and the protective door 6 is matched with the guide rail 20.

[0055] As can be seen from the above, the synchronous belt 11 is fixed on the side of the transmission bracket 15 through bolts, the fixed plate 16 is welded on the bottom surface of the bracket, and the fixed plate 16 is rigidly connected to the top of the protective door 6 through screw holes, so that power is ensured to be transmitted to the door body.

[0056] When the protective door 6 moves, the limiting wheels 18 on the two sides of the fixed plate 16 are embedded in the I-shaped limiting rail 17 at the bottom of the top frame 3; the limiting wheels 18 are clamped into the grooves of the limiting rail 17, so that the door body is prevented from sagging and swinging or transversely deviating.

[0057] When the main driving member 8 fails, the control box 14 is switched to the auxiliary driving member 12, the synchronous belt 11 is continuously driven through the second synchronous wheel 13, the limiting mechanism ensures that the door body does not shake when power is switched, and sudden changes in the sealing gap are avoided.

[0058] Example three: on the basis of example one, the door frame 1 both ends are installed with display screen 7 and monitoring piece, the top frame 3 both ends are installed with alarm lamp 4, monitoring piece uses Geiger counter, the top frame 3 bottom is installed with emergency stop button 19.

[0059] From the above, when the need to close the protective door, control box 14 receives the door closing instruction, start the main drive 8 and auxiliary drive 12, main drive 8 through the reducer 9 drive first synchronous wheel 10 rotation, under the transmission of synchronous belt 11 and second synchronous wheel 13, through the fixed assembly drive protective door 6 along the groove 2 to the closing direction of movement.

[0060] In the process of moving protective door 6, monitoring piece real-time monitoring inside the door (radiology department) and outside the door (radiology department) radiation values, and these real-time data transmission to control box 14;Control box 14 in the intelligent control module on the received radiation value information processing and analysis, and compared with the preset safe radiation value range.

[0061] When the protective door 6 moves to with door groove 5, the start block 601 on the protective door 6 trigger buffer pad 23 on the trigger 25, trigger 25 will signal transmission to control box 14. Control box 14 through the control transmission unit 27 control excitation plate 30 power on, excitation plate 30 and permanent magnet plate 29 between the repulsion, push the sealing frame 22 in the sealing groove 21 sliding, make sealing frame 22 and protective door 6 closely, realize sealing. At the same time, spring 28 in the process of moving sealing frame 22 play a buffer and reset function.

[0062] In this process, control box 14 will be according to the real-time radiation value of monitoring piece feedback, intelligent adjustment of excitation plate 30 current. If the monitoring of external radiation value does not reach the set radiation threshold, control box 14 will increase the excitation current, enhance the repulsion, make sealing frame 22 and protective door 6 more closely, through local pressure compensation to ensure the sealing effect;If the door body is monitored to be pressed too large, may cause damage to the door body or sealing assembly, control box 14 will reduce the current, reduce the repulsion, release spring tension, avoid structure damage. This based on real-time radiation data closed loop regulation, ensure that the sealing frame 22 and protective door 6 contact surface pressure uniform and stable.

[0063] Control box 14 will be the working state of protective door, such as opening, closing, sealing condition and monitoring piece monitoring door inside and outside the radiation value information, real-time display on the display screen 7, facilitate medical staff and relevant personnel at any time understand the running status of protective door and radiation environment.

[0064] When the monitoring piece monitors that the radiation value inside and outside the door exceeds the preset safety range, the intelligent warning module of the control box 14 will immediately issue an instruction to control the alarm lamp 4 to issue an audible and light alarm to remind the relevant personnel that the radiation exceeds the standard and timely measures need to be taken for processing, such as checking the sealing condition of the protective door, stopping the work of the radiation equipment, etc. At the same time, the control box 14 will automatically record the abnormal information, including the time and value of the radiation exceeding the standard, etc., to provide data support for subsequent maintenance and analysis.

[0065] In the case of an emergency, such as the monitoring piece monitoring that the radiation value seriously exceeds the standard and cannot be controlled in a short time, or the door body has a serious fault that may cause a large amount of radiation leakage, etc., the worker presses the emergency stop button 19, the emergency stop signal is immediately transmitted to the control box 14, the control box 14 quickly cuts off the power supply of the main driving piece 8, the auxiliary driving piece 12 and the excitation plate 30, so that the protective door immediately stops all actions to prevent the radiation from further spreading, to gain time for personnel evacuation and problem processing, and to avoid the accident from further expanding.

[0066] When the protective door needs to be opened, the control box 14 controls the excitation plate 30 to be powered off, the repulsive force disappears, the sealing frame 22 is reset under the action of the spring 28, and then the control box 14 controls the main driving piece 8 and the auxiliary driving piece 12 to work in reverse, driving the protective door 6 to move along the sliding groove 2 to the opening direction. During the opening of the door body, the monitoring piece still continuously monitors the radiation value, and the control box 14 will also make corresponding intelligent control and adjustment according to the actual situation.

[0067] Embodiments of the present application are given for example and description, although embodiments of the present application have been shown and described above, it is understood that the above embodiments are exemplary and cannot be understood as limiting the present application, and those skilled in the art can make changes, modifications, replacements and variations to the above embodiments within the scope of the present application.

Claims

1. A radiation protection intelligent door for radiology departments, characterized in that, include: The door assembly includes a door frame (1), a top frame (3) fixed to the top surface of the door frame (1), a slide groove (2) provided in the inner cavity of the door frame (1), a door groove (5) passing through the slide groove (2), and a protective door (6) installed in the slide groove (2); A transmission assembly controls the movement of the protective door (6) along the slide groove (2), and a control box (14) is integrated inside the top frame (3); The sealing assembly includes a sealing groove (21) formed on the two inner walls of the slide groove (2), a sealing frame (22) sliding in the sealing groove (21), a control transmission unit (27), a spring (28), a permanent magnet plate (29) and an excitation plate (30). The excitation plate (30) is installed on the inner surface of the sealing groove (21). Several springs (28) are connected between the sealing frame (22) and the inner wall of the sealing groove (21). The permanent magnet plate (29) is fixedly installed on one side wall of the sealing frame (22). The excitation plate (30) is electrically connected to the control box (14) through the control transmission unit (27). The protective door (6) is filled with lead plates, and the sealing frame (22) is a lead frame.

2. The intelligent radiation protection door for radiology departments as described in claim 1, characterized in that: A buffer pad (23) is fixedly installed on the inner wall of the slide (2). A sealing lead plate (24) is provided on the surface of the buffer pad (23). A groove is opened on one side of the buffer pad (23). A trigger (25) is installed in the groove. A starting block (601) is fixed on the side of the protective door (6) facing the buffer pad (23). The starting block (601) and the trigger (25) are positioned opposite each other.

3. The intelligent radiation protection door for radiology departments as described in claim 2, characterized in that: The inner top wall of the door frame (1) is provided with a drive groove (26), which is connected to the sealing groove (21). The drive groove (26) is equipped with a control transmission unit (27).

4. The intelligent radiation protection door for radiology departments as described in claim 1, characterized in that: The transmission assembly includes a control box (14), a main drive unit (8), a reducer (9), an auxiliary drive unit (12), and a fixing assembly. The control box (14), the main drive unit (8), the reducer (9), and the auxiliary drive unit (12) are all installed inside the top frame (3). The output shaft of the main drive unit (8) is connected to the reducer (9). A first synchronous pulley (10) is installed at the output shaft of the reducer (9). A second synchronous pulley (13) is installed at the output shaft of the auxiliary drive unit (12). A synchronous belt (11) is installed between the first synchronous pulley (10) and the second synchronous pulley (13). A fixing assembly is installed between the synchronous belt (11) and the top of the protective door (6).

5. The intelligent radiation protection door for radiology departments as described in claim 4, characterized in that: The fasteners include a transmission bracket (15) fixedly installed on the periphery of the synchronous belt (11) and a fixing plate (16) fixed to the bottom surface of the transmission bracket (15). The fixing plate (16) is threadedly installed on the upper surface of the protective door (6).

6. The intelligent radiation protection door for radiology departments as described in claim 5, characterized in that: The bottom wall of the top frame (3) is fixed with a limiting rail (17), and a number of limiting wheels (18) are installed on the surface of the fixing plate (16). The limiting wheels (18) cooperate with the limiting rail (17). The bottom surface of the slide groove (2) is equipped with a guide rail (20), and the protective door (6) cooperates with the guide rail (20).

7. The intelligent radiation protection door for radiology departments as described in claim 1, characterized in that: The front and rear ends of the door assembly are equipped with a display screen (7), an alarm light (4) and a monitoring device. The sealing frame (22) and the contact surface of the protective door (6) are integrated with a pressure sensor. The pressure sensor is electrically connected to the control box (14) through the control transmission unit (27).

8. The intelligent radiation protection door for radiology departments as described in claim 7, characterized in that: An emergency stop button (19) is installed on the bottom surface of the top frame (3).

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