Magnetic suspension medical automatic door matched with access control function

Abstract

The invention discloses a magnetic suspension medical automatic door matched with an access control function, and relates to the technical field of magnetic suspension automatic doors, the magnetic suspension medical automatic door comprises a magnetic suspension assembly, a registration trigger assembly, a door body assembly, an access control machine, an infrared induction switch and a PLC, the magnetic suspension assembly is installed on the outer side of a wall and used for driving the door body assembly to be opened and closed, and the magnetic suspension assembly comprises a fixed rail; a linear motor is installed at the position, close to the left side, in the fixed rail, stator windings are fixedly connected to the inner surface walls of the front side and the rear side of the fixed rail, a movable rail is slidably embedded in the fixed rail, and door clamps are symmetrically and fixedly connected to the bottom of the movable rail. According to the invention, the overall structure is novel, the used electric devices are mature and cheap, the implementation mode is simple, and the problems that excessive energy consumed by the driving device is increased and the use efficiency of a detection room is reduced due to the large opening and closing distance and opening and closing time of the medical magnetic suspension automatic door can be effectively solved.

Description

Technical Field

[0001] The invention relates to the technical field of magnetic suspension automatic doors, in particular to a magnetic suspension medical automatic door matching an access control function. Background Art

[0002] Theoretically, automatic doors should be an extension of the concept of doors. They refer to a control unit that can recognize the action of a person approaching the door as a signal to open the door, open the door through a drive system, and automatically close the door after the person leaves. With the development of science and technology, people have developed magnetic levitation automatic doors. Magnetic levitation automatic doors reduce the resistance encountered when opening and closing automatic doors, making them more convenient to use. Magnetic levitation automatic doors are widely used in important places in hospitals because of their easy opening and closing.

[0003] In the prior art, such as Chinese patent publication number CN207676399U, a magnetic levitation medical automatic door matching the function of an access control system is disclosed, which includes: a card reader, a first control module, a transmission module, a second control module, a magnetic levitation automatic door, a database, a timer and a control switch, wherein the card reader is electrically connected to the input end of the first control module, the output end of the first control module is electrically connected to the transmission module, the transmission module and the database are both electrically connected to the input end of the second control module, the output end of the second control module is electrically connected to the magnetic levitation automatic door, the control switch is electrically connected to the magnetic levitation electric door, the output end of the second control module and the control switch are both electrically connected to the input end of the timer, and the magnetic levitation medical automatic door matching the function of the access control system can identify the identity and information of people entering and exiting through the card reader, thereby increasing the safety of the magnetic levitation door and preventing strangers from entering the magnetic levitation automatic door and causing harm.

[0004] Although the above-mentioned magnetic levitation medical automatic door can identify the identity information of people entering and exiting through the card reader to prevent harm caused by strangers entering, in actual use, in order to meet the needs of carrying larger medical equipment and patients lying on beds, the magnetic levitation automatic doors used in hospital examination rooms are usually larger in size, and the moving distance of the door body when opening and closing is 120cm-200cm, and the opening and closing time is 8-15 seconds. Under normal circumstances, it is mainly patients and medical staff who enter and exit the hospital examination room through the magnetic levitation automatic door. Therefore, the excessive opening and closing distance and opening and closing time of the automatic door will not only increase the excess energy consumed by the drive device, but also reduce the utilization efficiency of the inspection room.

[0005] Therefore, a magnetically suspended medical automatic door matching an access control function is proposed to solve the problems raised in the above background technology. Summary of the invention

[0006] The purpose of the present invention is to provide a magnetic levitation medical automatic door matching the access control function, so as to solve the problem proposed in the above background technology that the people who usually enter and exit the hospital examination room through the magnetic levitation automatic door are mainly patients and medical staff. Therefore, the excessive opening and closing distance and opening and closing time of the automatic door will not only increase the excess energy consumed by the driving device, but also reduce the utilization efficiency of the examination room.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a magnetic suspension medical automatic door matching access control function, comprising a magnetic suspension component, a registration trigger component, a door body component, an access control machine, an infrared sensor switch and a PLC controller, wherein the magnetic suspension component is installed on the outside of the wall and is used to drive the door body component to open and close, comprising a fixed track, a linear motor is installed at a position near the left side of the fixed track, the front and rear inner surface walls of the fixed track are fixedly connected with stator windings, a moving rail is slidably embedded in the fixed track, and a door clamp is symmetrically fixedly connected to the bottom of the moving rail, the registration trigger component is used to control the driving state of the magnetic suspension component according to the pressure degree of the object passing through, and comprises a protective shell, the protective shell is embedded in the ground, a matrix pressure sensor is installed at the bottom of the protective shell, the door body component is installed below the magnetic suspension component, and comprises a first outer door and a ground rail, the infrared sensor switch and the access control machine are both installed on the outside of the wall, and are both electrically connected to the PLC controller through a line, the PLC controller is installed on the inside of the wall, and is electrically connected to the matrix pressure sensor through a line, and the linear motor is electrically connected to the PLC controller through a line.

[0008] Preferably, a limiter is embedded and installed between the inner walls of the fixed rail near the right end, and the limiter is electrically connected to the linear motor through a line. A sliding groove is provided on the right surface of the first outer door, and a sliding plate is slidably arranged between the inner walls of the sliding groove. The right surface of the sliding plate is fixedly connected to the second outer door, and the first outer door and the second outer door are both arranged in an L shape.

[0009] By adopting the above technical solution, after the movable rail moves to the maximum distance, the limiter is triggered to timely control the linear motor to stop running.

[0010] Preferably, a sealing door is provided between the inner surfaces of the first outer door and the second outer door near the rear side, the right surface of the second outer door is in contact with the wall, the top and bottom of the first outer door are respectively fixedly connected with an upper plate and a lower plate, and the upper plate and the door clamp are fixedly connected by bolts.

[0011] By adopting the above technical solution, a protruding structure is provided on the outer side of the wall to resist the second outer door and complete the door closing action.

[0012] Preferably, a supporting plate is provided above the protective shell, the supporting plate is composed of a grid-like elastic steel sheet and a polyurethane plate, a plurality of pressure columns are arranged and fixedly connected at the bottom of the supporting plate, and the pressure columns cooperate with a matrix pressure sensor.

[0013] By adopting the above technical solution, the support plate uses a grid-shaped elastic steel sheet as the skeleton and is covered with a polyurethane plate on the outside. The polyurethane material has good wear resistance and rebound effect, and the elastic steel sheet has good pressure bearing, deformation and rebound effects, thereby ensuring that heavier medical equipment will not cause damage to the support plate.

[0014] Preferably, a plurality of spring rods consisting of springs and telescopic rods are fixedly connected to the left inner wall of the sliding groove, and the right ends of the plurality of spring rods are fixedly connected to the left surface of the sliding plate. Two groups of first rotating seats are fixedly connected to the rear surface of the first outer door, and a connecting rod is rotatably connected between the inner walls of the first rotating seats. The rear end of the connecting rod is rotatably connected to a second rotating seat, and the second rotating seat is fixedly connected to the front surface of the sealing door.

[0015] By adopting the above technical solution, when the second outer door is opened, the thrust provided by the spring rod creates an additional distance between the second outer door and the first outer door, thereby eliminating the interference with the sealing door.

[0016] Preferably, two sets of guide rings are fixedly connected to the rear surface of the first outer door, and the outer surfaces of the guide rings slide through the outer surface of the connecting rod. The outer surface of the guide ring is located on the left side of the connecting rod and a spring member is sleeved thereon, and the right end of the spring member is in contact with the left surface of the connecting rod. The rear surfaces of the first outer door and the second outer door are both fixedly connected with a set of contact wheels, and the contact wheels and the sealing door cooperate with each other.

[0017] By adopting the above technical solution, the design of the guide ring is mainly used to limit the connecting rod and the spring member, especially the limiting of the spring member can prevent it from being twisted during extension and retraction.

[0018] Preferably, the ground rail is embedded in the ground and is located below the lower plate, a second magnetic plate is installed at the inner bottom of the ground rail, a first magnetic plate is embedded at the bottom of the lower plate, and the first magnetic plate and the second magnetic plate are in a repulsive state.

[0019] By adopting the above technical solution, the first magnetic plate and the second magnetic plate produce a same-level repulsion effect, and act on the ground rail and the first outer door.

[0020] Preferably, a limiting steel plate is fixedly connected between the inner walls of the protective shell at a position above the matrix pressure sensor, a plurality of limiting holes are arranged on the top of the limiting steel plate, the inner walls of the limiting holes and the outer surface of the pressure column are slidingly fitted, and the outer surface of the pressure column is fixedly connected to a limiting ring at a position above the limiting steel plate.

[0021] By adopting the above technical solution, the limiting steel plate with the limiting hole cooperates with the limiting ring on the surface of the pressure column, which is mainly used to limit the downward movement distance of the pressure column to avoid damage to the matrix pressure sensor.

[0022] Preferably, inclined movable plates are rotatably arranged on the outer surfaces of the supporting plate, a waist-shaped groove is penetrated through the inner part of the movable plate near the bottom, and connecting plates are fixedly connected to the inner surface walls of the protective shell near the top.

[0023] By adopting the above technical solution, an inclined movable plate is arranged between the edge of the support plate and the protective shell, which has the effect of forming a slope, making it convenient for medical equipment, beds and other objects to be moved onto the support plate.

[0024] Preferably, the top of the connecting plate and the protective shell are both at the same horizontal plane as the ground, the bottom of the connecting plate is fixedly connected to a guide rod via a connecting piece, and the outer surface of the guide rod is slidably fitted with the inner surface wall of the waist-shaped groove.

[0025] By adopting the above technical solution, the guide rod and the inner wall of the waist-shaped groove slide and fit together to limit the movable plate.

[0026] Compared with the prior art, the present invention has the following beneficial effects: 1. During use, when a person or object is above the support plate, different areas of the support plate will bend, driving the corresponding pressure column to squeeze the matrix pressure sensor, thereby generating a pressure signal. The PLC controller and its internal signal conditioning circuit and single-chip microcomputer process, analyze and compare the signal data to determine the type of object entering and exiting and the required door opening distance. Subsequently, the PLC controls the linear motor to start and cooperate with the stator winding to change the magnetic field to push the moving rail to move the appropriate distance, thereby driving the door body assembly to complete the opening and closing of the door. The overall structure is novel, the electrical components used are mature, inexpensive and simple to implement, and can effectively solve the problem of how large the switching distance and switching time of the medical magnetic levitation automatic door are, which will not only increase the excess energy consumed by the drive device, but also reduce the efficiency of the detection room.

[0027] 2. In the present invention, during the closing process of the door body assembly, the second outer door maintains a certain distance from the first outer door under the action of the spring rod. At this time, the spring member stretches and pushes the connecting rod to rotate with the first rotating seat as the center of the circle, and at the same time cooperates with the second rotating seat to drive the sealing door to move to the right front, so that the sealing door does not contact the wall before closing the door. When the second outer door reaches the closed position and is squeezed by the wall, as the first outer door continues to move, the spring rod is compressed, and the two outer doors form a complete protective door. At the same time, the sealing door is squeezed by the second outer door after reaching the door opening position, and the connecting rod gradually rotates. Therefore, the sealing door will first move to the rightmost side of the door opening, and then move backward in a straight line to cover the door opening to achieve door closing. This design not only forms a protective door, but also reduces the demand for sealing components through the special moving path of the sealing door, and the sealing components will not be damaged by friction, thereby improving the sealing performance of the medical automatic door and meeting the protection and sealing requirements of the examination room.

[0028] 3. When the present invention is in use, the top surface of the support plate is higher than the protective shell and the ground, and the surrounding movable plates form a slope, which is convenient for carrying heavy medical equipment and beds to the support plate for information registration. When the support plate is pressed down, the guide rod slides in the waist groove to ensure that the movable plate maintains a slope state. When the support plate is under excessive weight, the pressure column moves down, and the limiting ring on its surface eventually falls on the limiting steel plate, which effectively prevents the pressure column from continuing to fall and protects the matrix pressure sensor from damage. In addition, the support plate protruding from the ground has a large movable distance, and a large industrial matrix pressure sensor can be selected to ensure the overall service life and reliability of the device. This design is both practical and safe, and meets the special needs of medical occasions. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a front view of a magnetic suspension medical automatic door matching the access control function of the present invention; Figure 2 This is a rear view of a magnetically suspended medical automatic door matching an access control function according to the present invention; Figure 3 A schematic diagram of a wall of a magnetically suspended medical automatic door matching an access control function according to the present invention; Figure 4 This is a schematic diagram of the structure of a magnetic suspension component of a magnetic suspension medical automatic door matching an access control function according to the present invention; Figure 5 This is a structural schematic diagram of a registration trigger component of a magnetically suspended medical automatic door matching an access control function according to the present invention; Figure 6 A partial structural cross-sectional view of a registration trigger component of a magnetically suspended medical automatic door matching an access control function according to the present invention; Figure 7 This is a schematic diagram of the structure of a door body component of a magnetically suspended medical automatic door matching an access control function according to the present invention; Figure 8This is a partial structural schematic diagram of a door body component of a magnetically suspended medical automatic door matching an access control function according to the present invention; Fig. 9 A top view of a partial structure of a door body component of a magnetically suspended medical automatic door matching an access control function according to the present invention; Fig.10 A schematic diagram of the connection of a matrix pressure sensor for a magnetically suspended medical automatic door matching an access control function according to the present invention; Fig.11 A schematic diagram of the movement of a door body assembly of a magnetically suspended medical automatic door matching an access control function according to the present invention; Fig.12 The present invention is a schematic diagram of a signal transmission system for a magnetically suspended medical automatic door matching an access control function.

[0030] In the figure: 1. Magnetic suspension assembly; 101. Fixed track; 102. Linear motor; 103. Stator winding; 104. Moving track; 105. Door clamp; 106. Stopper; 2. Registration trigger assembly; 201. Protective shell; 202. Matrix pressure sensor; 203. Stopper steel plate; 204. Stopper hole; 205. Support plate; 206. Pressure column; 207. Stopper ring; 208. Movable plate; 209. Waist groove; 210. Connecting plate; 211. Guide rod; 3. Door assembly Components; 301, first outer door; 302, sliding groove; 303, spring rod; 304, sliding plate; 305, second outer door; 306, first rotating seat; 307, connecting rod; 308, second rotating seat; 309, guide ring; 310, spring component; 311, contact wheel; 312, sealing door; 313, upper plate; 314, lower plate; 315, first magnetic plate; 316, second magnetic plate; 317, ground rail; 4, access control machine; 41, infrared sensor switch; 42, PLC controller. DETAILED DESCRIPTION

[0031] 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 implementation regulations 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 creative work are within the scope of protection of the present invention.

[0032] Example 1: Please refer to Figure 1-Figure 12As shown, the present invention provides a technical solution: a magnetic suspension medical automatic door matching an access control function, comprising a magnetic suspension component 1, a registration trigger component 2, a door body component 3, an access control machine 4, an infrared sensor switch 41 and a PLC controller 42, wherein the magnetic suspension component 1 is installed on the outside of the wall, and is used to drive the door body component 3 to open and close, and comprises a fixed track 101, wherein a linear motor 102 is installed at a position near the left side inside the fixed track 101, and stator windings 103 are fixedly connected to the inner surface walls on the front and rear sides of the fixed track 101, and a moving track 104 is slidably embedded inside the fixed track 101. The bottom of the moving rail 104 is symmetrically fixedly connected with a door clamp 105. The registration trigger component 2 is used to control the driving state of the magnetic suspension component 1 according to the pressure degree of the passing object, including a protective shell 201, the protective shell 201 is embedded in the ground, and a matrix pressure sensor 202 is installed at the bottom of the protective shell 201. The door body component 3 is installed below the magnetic suspension component 1, including a first outer door 301 and a ground rail 317. The infrared sensor switch 41 and the access control machine 4 are both installed on the outside of the wall, and are both electrically connected to the PLC controller 42 through the line. The PLC controller 42 is installed on the inside of the wall, and through The circuit is electrically connected to the matrix pressure sensor 202, the linear motor 102 is electrically connected to the PLC controller 42 through the circuit, a limiter 106 is embedded and installed between the inner surface walls of the fixed track 101 near the right end, the limiter 106 is electrically connected to the linear motor 102 through the circuit, a sliding groove 302 is opened on the right surface of the first outer door 301, a sliding plate 304 is slidably arranged between the inner surface walls of the sliding groove 302, and a second outer door 305 is fixedly connected to the right surface of the sliding plate 304, the first outer door 301 and the second outer door 305 are both L-shaped, and the first outer door A sealing door 312 is provided between the inner surface of the first outer door 301 and the second outer door 305 near the rear side. The right surface of the second outer door 305 is in contact with the wall. The top and bottom of the first outer door 301 are respectively fixedly connected with an upper plate 313 and a lower plate 314. The upper plate 313 and the door clamp 105 are fixedly connected by bolts. A supporting plate 205 is provided above the protective shell 201. The supporting plate 205 is composed of a grid-like elastic steel sheet and a polyurethane sheet. A plurality of pressure columns 206 are arranged and fixedly connected at the bottom of the supporting plate 205. The pressure columns 206 cooperate with the matrix pressure sensor 202.

[0033] In this embodiment, when in use, when a person or object needs to enter the hospital examination room, first, the person or object needs to move to the support plate 205. At this time, after the support plate 205 is subjected to pressure, different pressure areas will bend downward, thereby driving the pressure column 206 in the corresponding area to squeeze the sensing unit in the corresponding area of ​​the matrix pressure sensor 202. At this time, the matrix pressure sensor 202 will convert the pressure signal into an electrical signal and transmit it to the PLC controller 42 in the room. Since the signal output by the matrix pressure sensor 202 is weak and easily interfered with, the signal conditioning circuit in the PLC controller 42 will filter the required pressure signal. Amplification improves signal quality and stability, and then the signal data is analyzed and processed by the internal single chip microcomputer to obtain the pressure value and the distance between the pressure signals in different areas, and then compared with the data in the database to determine whether it is a human body, a bed or a medical device that needs to enter and exit the examination room and obtain the appropriate door opening distance. Then the PLC controller 42 sends a command to the driver in the linear motor 102 and starts the linear motor 102. At this time, the linear motor 102 is energized and cooperates with the stator winding 103 to generate a changing magnetic field, and then pushes the moving rail 104 inside the fixed rail 101 to move a suitable distance. When the moving rail 104 moves, it will pass through the door clamp 1 05 drives the door body assembly 3 to move and complete the opening and closing of the door. The device has a novel structure, and the electrical components used are mature and cheap, with low cost and low difficulty in implementation. It can effectively solve the problem of how large the opening and closing distance and opening and closing time of the medical magnetic levitation automatic door are, which will not only increase the excess energy consumed by the drive device, but also reduce the efficiency of the detection room. Among them, the moving rail 104 is a permanent magnet. After the limiter 106 is triggered during the door closing process, the limiter 106 will directly send a stop signal to the linear motor 102 to stop the linear motor 102 in time. After the door clamp 105 is connected to the upper plate 313, it is mainly used to connect the moving rail 104 and the first outer door 301. Among them, this device is In different usage situations, the starting mode of the linear motor 102 can be adjusted to fully automatic, semi-automatic and normally closed states through the PLC controller 42. The fully automatic state allows the PLC controller 42 to send a signal after the infrared sensing switch 41 detects an object signal, thereby directly performing the door opening operation based on the object signal further determined by the registration trigger component 2. In the semi-automatic state, it is necessary to determine the object category through the registration trigger component 2 and then confirm the door opening through the switch unit inside the inspection room. In the normally closed state, it is necessary to input one of the fingerprint, password and identity card information through the access control machine 4, and then the access control machine 4 sends a signal to the PLC controller 42 to perform the door opening operation.

[0034] Embodiment 2: Figure 1 Figure 7-Figure 9 and Fig.11As shown, the left inner surface wall of the sliding groove 302 is fixedly connected with a plurality of spring rods 303 composed of springs and telescopic rods, and the right ends of the plurality of spring rods 303 are fixedly connected to the left surface of the sliding plate 304. The rear surface of the first outer door 301 is fixedly connected with two groups of first rotating seats 306, and the inner surface walls of the first rotating seats 306 are rotatably connected with connecting rods 307, and the rear end of the connecting rods 307 is rotatably connected with the second rotating seat 308, and the second rotating seat 308 is fixedly connected to the front surface of the sealing door 312. The rear surface of the first outer door 301 is fixedly connected with two groups of guide rings 309, and the outer surface of the guide rings 309 slides through The outer surface of the connecting rod 307 and the outer surface of the guide ring 309 are sleeved with a spring member 310 at a position on the left side of the connecting rod 307, and the right end of the spring member 310 is in conflict with the left surface of the connecting rod 307. The rear surfaces of the first outer door 301 and the second outer door 305 are fixedly connected with a group of conflicting wheels 311, and the conflicting wheels 311 and the sealing door 312 cooperate with each other. The ground rail 317 is embedded in the ground, and the ground rail 317 is located below the lower plate 314. The second magnetic plate 316 is installed at the inner bottom of the ground rail 317, and the first magnetic plate 315 is embedded at the bottom of the lower plate 314. The first magnetic plate 315 and the second magnetic plate 316 are in a repulsive state.

[0035] In this embodiment, when the door body assembly 3 is in the open state and needs to be closed, the movable rail 104 controls the first outer door 301 to close. Since the first outer door 301 and the second outer door 305 are connected by the spring rod 303, and the second outer door 305 is not resisted on the right side before closing, there is a distance between the second outer door 305 and the first outer door 301. At this time, the spring member 310 on the rear side of the first outer door 301 will extend and squeeze the corresponding connecting rod 307 to the right. Therefore, all the connecting rods 307 will rotate to the right with the first rotating seat 306 as the center of the circle. All the connecting rods 307 are of the same length and are in a parallel state. Therefore, the front end of the connecting rod 307 will rotate with the second rotating seat 308 and drive the sealing door 312 with the help of the second rotating seat 308. The first outer door 301 and the second outer door 305 are slightly moved to the right front direction for a distance and are located on the inner side of the first outer door 301 and the second outer door 305, without contacting the wall. When the second outer door 305 reaches the closed position, it is squeezed by the wall. As the first outer door 301 continues to move to the right, the spring rod 303 is compressed, and the first outer door 301 and the second outer door 305 form a complete protective door. At the same time, during this process, after the sealing door 312 that moves with the first outer door 301 reaches the door opening position, the right side is squeezed by the second outer door 305, thereby causing the connecting rod 307 to gradually rotate and squeeze the spring member 310 to contract. During the whole process, the sealing door 312 first moves to the rightmost door opening position, and then moves backward in a straight line, so as to close the door only after covering the door opening. In this design, The first outer door 301 and the second outer door 305 form a protective door, and the special moving path of the sealing door 312 makes it only necessary to make a good seal between the rear surface and the front side of the door opening, and fewer sealing parts are required. In the process of opening and closing the door, the sealing material on the surface of the sealing door 312 will not be damaged by friction, which can effectively improve the sealing performance of the medical automatic door and meet the protection and sealing requirements of different examination rooms. It has strong functionality. When the sealing door 312 moves obliquely to the right front direction, the resistance wheel 311 plays a role in limiting the sealing door 312. At the same time, there is rolling friction between the two, and the friction damage is relatively low. The guide ring 309 and the first rotating seat 306 are arranged concentrically, which are mainly used to limit the connecting rod 307 and the spring member 310 to avoid the spring member 31 0 is twisted and damaged during extension and retraction, the sliding groove 302 and the sliding plate 304 cooperate to limit the movement of the second outer door 305 to prevent the second outer door 305 from shaking during movement, and the ground rail 317 at the bottom of the first outer door 301 during movement to prevent the first outer door 301 and the second outer door 305 from shaking during movement and causing friction damage and noise, and the first magnetic plate 315 embedded in the bottom of the lower plate 314 and the second magnetic plate 316 in the ground rail 317 are at the same level, so repulsive force is generated between them, and the generated repulsive force has the effect of pushing the first outer door 301 and the second outer door 305 and other structures upward, thereby reducing the workload of the magnetic suspension assembly 1.

[0036] Embodiment 3: Figure 1 , Figure 2 , Figure 5 and Figure 6 As shown, a limit steel plate 203 is fixedly connected to the position above the matrix pressure sensor 202 between the inner walls of the protective shell 201, and a plurality of limit holes 204 are arranged on the top of the limit steel plate 203. The inner wall of the limit hole 204 and the outer surface of the pressure column 206 are slidably fitted, and the outer surface of the pressure column 206 is fixedly connected to a limit ring 207 at a position above the limit steel plate 203. The outer surfaces of the supporting plate 205 are all rotatably provided with inclined movable plates 208, and a waist-shaped groove 209 is penetrated and opened near the bottom of the movable plate 208. The inner walls of the protective shell 201 are all fixedly connected with connecting plates 210 near the top, and the connecting plates 210 and the top of the protective shell 201 are both at the same horizontal plane with the ground. The bottom of the connecting plate 210 is fixedly connected with a guide rod 211 through a connecting piece, and the outer surface of the guide rod 211 and the inner wall of the waist-shaped groove 209 are slidably fitted.

[0037] In this embodiment, during use, the top surface of the support plate 205 is higher than the height of the protective shell 201 and the ground, and the movable plate 208 rotatably connected to the support plate 205 is in an inclined state, and the bottom is located below the connecting plate 210, thereby forming a slope between the support plate 205 and the ground, which is convenient for carrying heavy medical equipment and pushing the bed carrying the patient to move to the support plate 205 for information detection and registration. In addition, when the support plate 205 is pressed down, the fixed guide rod 211 will slide with the inner wall of the waist groove 209 and limit the moving path of the movable plate 208, so that the movable plate 208 always maintains a certain inclination to form a slope. When the support plate 205 is subjected to excessive weight, as the pressure column 206 moves downward, the pressure column 206 surface The limiting ring 207 on the surface will eventually fall to the top of the limiting steel plate 203, thereby stopping the pressure column 206 from continuing to fall and avoiding damage to the matrix pressure sensor 202. In addition, in the present device, the support plate 205 protruding from the ground can have a larger movable distance, so a large-scale industrial matrix pressure sensor 202 with a longer service life can be selected, ensuring the overall service life and reliability of the present device. Among them, the support plate 205 adopts a grid-shaped elastic steel sheet as the skeleton, and is coated with a polyurethane plate on the outside. The polyurethane material has good wear resistance and rebound effect. The elastic steel sheet has good pressure bearing, deformation and rebound effects, thereby ensuring that heavier medical equipment will not cause damage to the support plate 205. The limiting hole 204 is mainly used to limit and guide the pressure column 206.

[0038] The method of use and working principle of this device: During use, when a person or object needs to enter the hospital examination room, first, the person or object needs to move to the support plate 205. At this time, after the support plate 205 is subjected to pressure, different pressure areas will bend downward, thereby driving the pressure column 206 in the corresponding area to squeeze the sensing unit in the corresponding area of ​​the matrix pressure sensor 202. At this time, the matrix pressure sensor 202 will convert the pressure signal into an electrical signal and transmit it to the PLC controller 42 in the room. Since the signal output by the matrix pressure sensor 202 is weak and easily interfered with, the signal conditioning circuit in the PLC controller 42 will filter and amplify the required pressure signal to improve the signal quality and stability, and then the signal will be filtered and amplified by the internal single-chip microcomputer. The signal data is analyzed and processed to obtain the pressure value and the distance between the pressure signals in different areas, and then compared with the data in the database to determine whether it is a human body, a bed or a medical device that needs to enter and exit the examination room, and obtain the appropriate door opening distance. Subsequently, the PLC controller 42 sends an instruction to the driver in the linear motor 102 and starts the linear motor 102. At this time, the linear motor 102 is energized and cooperates with the stator winding 103 to generate a changing magnetic field and then pushes the moving rail 104 inside the fixed rail 101 to move a suitable distance. When the moving rail 104 moves, it will drive the door body assembly 3 to move through the door clamp 105 and complete the opening and closing of the door. The device has a novel structure, and the electrical components used are mature and inexpensive. The cost is low and the implementation method is easy. It can effectively solve the medical magnetic levitation automatic The switching distance and switching time of the movable door will not only increase the excess energy consumed by the drive device, but also reduce the efficiency of the detection room. When the door body assembly 3 is in the open state and needs to be closed, the movable rail 104 controls the first outer door 301 to close. Since the first outer door 301 and the second outer door 305 are connected by the spring rod 303, and the right side of the second outer door 305 is not resisted before closing, there is a distance between the second outer door 305 and the first outer door 301. At this time, the spring member 310 on the rear side of the first outer door 301 will stretch and squeeze the corresponding connecting rod 307 to the right, so all the connecting rods 307 will rotate to the right with the first rotating seat 306 as the center, and all the connecting rods 307 are of the same length and are in a parallel state, so the front end of the connecting rod 307 The sealing door 312 will rotate with the second rotating seat 308 and drive the sealing door 312 to move slightly to the right front direction for a distance with the help of the second rotating seat 308 to be on the inner side of the first outer door 301 and the second outer door 305 without contacting the wall. When the second outer door 305 reaches the closed position, it is squeezed by the wall. As the first outer door 301 continues to move to the right, the spring rod 303 will be compressed, and the first outer door 301 and the second outer door 305 form a complete protective door. At the same time, in this process, after the sealing door 312 that moves with the first outer door 301 reaches the door opening position, the right side will be squeezed by the second outer door 305, thereby causing the connecting rod 307 to gradually rotate and squeeze the spring member 310 to contract. During the whole process, the sealing door 312 will first move to the rightmost door opening position.Then it moves backward in a straight line, so as to close the door only after covering the door opening. In this design, the first outer door 301 and the second outer door 305 form a protective door, and the special moving path of the sealing door 312 makes it only necessary to make a good seal between the rear surface and the front side of the door opening, and fewer sealing parts are required. In addition, during the opening and closing of the door, the sealing material on the surface of the sealing door 312 will not be damaged by friction, which can effectively improve the sealing performance of the medical automatic door, meet the protection and sealing requirements of different examination rooms, and have strong functionality. During the movement of the first outer door 301, the ground track at the bottom 317 serves to limit the position of the first outer door 301 and the second outer door 305, thereby preventing the first outer door 301 and the second outer door 305 from shaking and causing friction damage and noise when they move. In addition, the first magnetic plate 315 embedded in the bottom of the lower plate 314 and the second magnetic plate 316 in the ground rail 317 are at the same level, so repulsive force is generated between them. The repulsive force has the effect of pushing the first outer door 301 and the second outer door 305 and other structures upward, thereby reducing the workload of the magnetic suspension assembly 1. In addition, during use, the top surface of the supporting plate 205 is higher than the protective The height of the shell 201 and the ground is adjusted, and the movable plate 208 connected to the supporting plate 205 by rotation is in an inclined state, and the bottom is located below the connecting plate 210, so that a slope is formed between the supporting plate 205 and the ground, which is convenient for carrying heavy medical equipment and pushing the bed carrying the patient to move to the supporting plate 205 for information detection and registration. In addition, when the supporting plate 205 is pressed down, the fixed guide rod 211 will slide with the inner wall of the waist groove 209 and limit the moving path of the movable plate 208, so that the movable plate 208 08 always maintains a certain inclination to form a slope, and when the supporting plate 205 is subjected to excessive weight, as the pressure column 206 moves downward, the limiting ring 207 on the surface of the pressure column 206 will eventually fall to the top of the limiting steel plate 203, thereby stopping the pressure column 206 from continuing to fall, avoiding damage to the matrix pressure sensor 202. In addition, in this device, the supporting plate 205 protruding from the ground can have a larger movable distance, so a large industrial matrix pressure sensor 202 with a longer service life can be selected, ensuring the overall service life and reliability of this device.

[0039] Among them, the linear motor 102, the stator winding 103, the limiter 106, the matrix pressure sensor 202, the access control machine 4, the infrared sensor switch 41 and the PLC controller 42 are all existing technologies, and their components and operating principles are all public technologies, so no excessive explanation is given here.

[0040] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A magnetic suspension medical automatic door with access control function, comprising a magnetic suspension component (1), a registration trigger component (2), a door body component (3), an access control machine (4), an infrared sensor switch (41) and a PLC controller (42), characterized in that: The magnetic suspension assembly (1) is installed on the outside of the wall and is used to drive the door assembly (3) to open and close, comprising a fixed track (101), a linear motor (102) is installed at a position close to the left side of the fixed track (101), the front and rear inner walls of the fixed track (101) are fixedly connected to stator windings (103), a moving rail (104) is slidably embedded in the fixed track (101), and a door clamp (105) is symmetrically fixedly connected to the bottom of the moving rail (104); The registration trigger component (2) is used to control the driving state of the magnetic suspension component (1) according to the degree of pressure on the passing object, and comprises a protective shell (201), wherein the protective shell (201) is embedded in the ground, and a matrix pressure sensor (202) is installed at the bottom of the protective shell (201); The door body assembly (3) is installed below the magnetic suspension assembly (1), and comprises a first outer door (301) and a ground rail (317); The infrared sensor switch (41) and the access control machine (4) are both installed on the outside of the wall and are electrically connected to the PLC controller (42) through a line. The PLC controller (42) is installed on the inside of the wall and is electrically connected to the matrix pressure sensor (202) through a line. The linear motor (102) is electrically connected to the PLC controller (42) through a line.

2. The magnetic suspension medical automatic door with access control function according to claim 1 is characterized in that: A limiter (106) is embedded and installed between the inner surface walls of the fixed track (101) near the right end, and the limiter (106) is electrically connected to the linear motor (102) through a line. A sliding groove (302) is provided on the right surface of the first outer door (301), and a sliding plate (304) is slidably arranged between the inner surface walls of the sliding groove (302). The right surface of the sliding plate (304) is fixedly connected to the second outer door (305), and the first outer door (301) and the second outer door (305) are both arranged in an L shape.

3. The magnetic suspension medical automatic door with access control function according to claim 1 is characterized in that: A sealing door (312) is provided between the inner surfaces of the first outer door (301) and the second outer door (305) at a position close to the rear side, the right surface of the second outer door (305) is in contact with the wall, and the top and bottom of the first outer door (301) are respectively fixedly connected with an upper plate (313) and a lower plate (314), and the upper plate (313) and the door clamp (105) are fixedly connected by bolts.

4. The magnetic suspension medical automatic door with access control function according to claim 1 is characterized in that: A support plate (205) is arranged above the protective shell (201), the support plate (205) being composed of a grid-shaped elastic steel sheet and a polyurethane plate, a plurality of pressure columns (206) being arranged and fixedly connected at the bottom of the support plate (205), the pressure columns (206) being matched with the matrix pressure sensors (202).

5. The magnetic suspension medical automatic door with access control function according to claim 2 is characterized in that: A plurality of spring rods (303) composed of springs and telescopic rods are fixedly connected to the left inner surface wall of the sliding groove (302); the right ends of the plurality of spring rods (303) are fixedly connected to the left surface of the sliding plate (304); two groups of first rotating seats (306) are fixedly connected to the rear surface of the first outer door (301); connecting rods (307) are rotatably connected between the inner surface walls of the first rotating seats (306); the rear end of the connecting rod (307) is rotatably connected to a second rotating seat (308); and the second rotating seat (308) is fixedly connected to the front surface of the sealing door (312).

6. The magnetic suspension medical automatic door with access control function according to claim 1 is characterized in that: The rear surface of the first outer door (301) is fixedly connected to two groups of guide rings (309), the outer surfaces of the guide rings (309) slide through the outer surface of the connecting rod (307), the outer surface of the guide ring (309) is located on the left side of the connecting rod (307) and is sleeved with a spring member (310), the right end of the spring member (310) and the left surface of the connecting rod (307) are in contact with each other, and the rear surfaces of the first outer door (301) and the second outer door (305) are fixedly connected to a group of contact wheels (311), and the contact wheels (311) and the sealing door (312) cooperate with each other.

7. The magnetic suspension medical automatic door with access control function according to claim 1 is characterized in that: The ground rail (317) is embedded in the ground and is located below the lower plate (314). A second magnetic plate (316) is installed at the inner bottom of the ground rail (317). A first magnetic plate (315) is embedded at the bottom of the lower plate (314). The first magnetic plate (315) and the second magnetic plate (316) are in a repulsive state.

8. The magnetic suspension medical automatic door with access control function according to claim 1 is characterized in that: A limiting steel plate (203) is fixedly connected between the inner surface walls of the protective shell (201) at a position above the matrix pressure sensor (202); a plurality of limiting holes (204) are arranged on the top of the limiting steel plate (203); the inner surface walls of the limiting holes (204) and the outer surface of the pressure column (206) are slidably fitted; and a limiting ring (207) is fixedly connected to the outer surface of the pressure column (206) at a position above the limiting steel plate (203).

9. The magnetic suspension medical automatic door with access control function according to claim 4, characterized in that: The outer surfaces of the supporting plate (205) are all rotatably provided with inclined movable plates (208), the inner part of the movable plate (208) near the bottom is provided with a waist-shaped groove (209) penetrating therethrough, and the inner surface walls of the protective shell (201) are all fixedly connected with connecting plates (210) near the top.

10. The magnetic suspension medical automatic door with access control function according to claim 9, characterized in that: The tops of the connecting plate (210) and the protective shell (201) are both on the same horizontal plane as the ground; the bottom of the connecting plate (210) is fixedly connected to a guide rod (211) via a connecting piece; the outer surface of the guide rod (211) is slidably fitted to the inner surface wall of the waist-round groove (209).

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