Double-protection safety door

Abstract

The invention relates to the technical field of furniture, and discloses a double-protection safety door which comprises a door body assembly, a mounting assembly and a brake assembly, one side of the door body assembly is arranged on one side of a door frame assembly, the brake assembly is arranged on the surface of the door frame assembly and comprises a brake bin, and a round pipe is arranged in one side of the brake bin. A piston rod is arranged in one side of the round pipe, a sealing sleeve is arranged at the right end of the piston rod, and a second sliding plate is arranged at the left end of the piston rod. Meanwhile, buffering braking is conducted at different door closing speeds of the double-protection door, meanwhile, the protruding block is matched to apply counter-acting force to the braking groove, so that when the double-protection door rebounds, the sealing sleeve cannot be disengaged from the braking groove, the hand clamping prevention effect is achieved, and the situation that the double-protection door rebounds due to impact force is prevented.

Description

Technical Field

[0001] The invention relates to the technical field of furniture, in particular to a double-defense safety door. Background Art

[0002] A door is a device installed at the entrance of a building that can be opened and closed to connect or close two spaces. In ordinary families, there are usually doors such as main doors and room doors. The common specifications for rooms are 800mm wide and 40mm thick. Usually, when there are children in the family, room doors become one of the most worrying family safety hazards for adults. Children are prone to pinching their fingers when closing the door. When using solid wood doors, due to the heavy weight and inertia of the door, when a pinching incident occurs, it will cause great harm to the child.

[0003] The application number is: CN201810290075.6, which discloses an anti-pinch safety door, and the main points of its technical solution are: it includes a door frame, the door frame is hinged with a door panel through a hinge, the door panel is provided with a receiving groove, the receiving groove of the door panel is slidably connected with a first rack in a vertical direction, a plug rod is fixed on the first rack, the plug rod passes through the door panel and slides in the vertical direction, the door frame is provided with a circular hole for the plug rod to be inserted, a first gear is rotatably connected in the receiving groove of the door panel, the first gear and the first rack are meshed with each other, a second rack is slidably connected in the vertical direction in the receiving groove of the door panel, the second rack and the first gear are meshed with each other, a second gear is rotatably connected in the receiving groove of the door panel, a rotating rod is fixed on the center of the second gear, and a torsion spring is sleeved on the outer side of the rotating rod.

[0004] It is found in the above technical scheme that when closing the door, although the two half leaves of the hinge can be rotated to prevent the door from closing rashly, and the anti-pinch finger effect can be achieved through the setting of the hinge, in actual use, the damping hinge will wear out after long-term use, so that the damping force will gradually decrease. Then, when the double-defense door is closed, if there is a hand on the door frame, it will cause hand injuries. At the same time, when the safety door is operated to close the door, the thrust applied to it is different, resulting in different closing speeds. Therefore, when the safety door is closed faster than the predetermined speed, if the safety door collides with the anti-pinch finger component, the double-defense door will rebound sharply in the opening direction due to the reaction and collide with the person. At the same time, when the double-defense door is buffered in the closed state, a gap will be caused between the door and the door frame, so that one side of the double-defense door cannot form a limit with the door frame, resulting in a loose closure, which easily leads to the risk of loss of items.

[0005] Therefore, it is necessary to solve the above problems through a double-defense safety door. Summary of the invention

[0006] The object of the present invention is to provide a double-defense safety door to solve the problems raised in the above background technology.

[0007] To achieve the above object, the present invention provides the following technical solution: a double-defense safety door, comprising a door body assembly, a mounting assembly and a brake assembly, wherein the mounting assembly is disposed on one side of the door body assembly, and the brake assembly is disposed on the surface of the mounting assembly;

[0008] The brake assembly includes a brake chamber connected to the mounting assembly, the brake chamber is provided with a round tube inside, the round tube is provided with a piston rod inside, the piston rod is provided with a sealing sleeve at one end away from the round tube, the piston rod is provided with a second sliding plate at one end located inside the round tube, a magnetic block is provided at the end of the second sliding plate, a return spring is provided at the end of the magnetic block, the other end of the return spring is provided with a first sliding plate, and an electromagnet is provided at one end of the first sliding plate facing the second sliding plate. By setting the return spring, not only can the kinetic energy of the double-defense door when closed be offset when the return spring is in a compressed state to form a damping effect, but also the second sliding plate and the piston rod can be limited in the initial state, so that when the double-defense door is in a closed state, the piston rod and the sealing sleeve are always in contact with one side of the double-defense door and exert pressure on one side of the double-defense door. At this time, the compression amount of the return spring can reflect whether the double-defense door is in a closed state or an open state.

[0009] Preferably, a protrusion is provided on one side of the sealing sleeve, and the number of the protrusions is set to be multiple, and each of the protrusion arrays is distributed on the surface of the sealing sleeve. By setting the sealing sleeve, when the piston rod controls the surface of the sealing sleeve to contact the brake groove on the double-defense door, due to the expansion effect of the sealing sleeve, the surface of the sealing sleeve will be tightly fitted to one side of the inner wall of the brake groove, thereby forming a mutual limiting effect, and then controlling the contraction of the piston rod to complete the buffering effect of the double-defense door.

[0010] Preferably, the brake assembly also includes a mounting plate, a rotating shaft is provided inside the mounting plate, a first connecting rod is provided at the bottom end of the rotating shaft, and a second connecting rod is provided at the other end of the first connecting rod, and a fixed block is provided at the end of the second connecting rod away from the first connecting rod. By setting the rotating shaft, when the double-defense door is rotating, the first connecting rod and the second connecting rod will be controlled to rotate, and the first connecting rod and the second connecting rod complete the rotation action of the double-defense door through the rotating shaft. At this time, the first connecting rod and the second connecting rod will cooperate with the damping hinge to support and limit the door.

[0011] Preferably, the door body assembly includes a double-defense door, a brake groove is provided on the side of the double-defense door close to the installation assembly, and the brake groove and the sealing sleeve are at the same height, a handle is provided on the side of the double-defense door away from the installation assembly, the brake groove includes a limiting area and an entrance area, the height dimension of the limiting area is greater than the height dimension of the entrance area, and the length of the limiting area is the same as that of the entrance area. By setting the brake groove, the sealing sleeve contacts the surface of the double-defense door and enters the brake groove. At this time, the sealing sleeve is expanded by the electric control push rod, so that the surface of the expanded sealing sleeve will completely contact the edge of the brake groove, thereby forming mutual limitation, thereby achieving the effect of limiting the double-defense door.

[0012] Preferably, an electric control push rod is provided on one side of the first sliding plate, the other end of the electric control push rod is arranged on the inner wall of the brake chamber, and the electric control push rod is located at the center of the circle inside the circular tube. By setting the electric control push rod, when the electric control push rod is turned on to make piston movement inside the circular tube, the gas in the circular tube will enter the interior of the sealing sleeve through the piston rod, so that the sealing sleeve will expand and form a limit with the interior of the brake groove, thereby achieving the effect of double-proof door braking.

[0013] Preferably, a limiting ring which is compatible with the second sliding plate is provided on one side of the piston rod, and the surface of the second sliding plate is connected with the interior of the piston rod through an air outlet. By setting the piston rod, when the electromagnet is controlled to generate a magnetic repulsion force on the magnetic block, the second sliding plate will make a piston movement inside the circular tube, and the piston rod will be controlled to make a piston movement inside the circular tube. At this time, not only the braking range is extended, but also one side of the second sliding plate will fit with one side of the limiting ring. At this time, the coordination of the action force of the reset spring and the magnetic repulsion force increases the damping strength to achieve the effect of buffering the double-protection door.

[0014] Preferably, the installation component includes a door frame, a damping hinge is provided on one side of the door frame, and the door frame is rotatably connected to one side of the double-protection door through the damping hinge. The number of the damping hinges is set to two, and each damping hinge is symmetrically arranged on one side of the door frame. A speed sensor is provided on one side of the damping hinge, and a temperature sensor is provided on one side of the door frame. By setting the temperature sensor and the speed sensor, firstly, it is possible to detect whether a human hand is on one side of the door frame through the temperature sensor on the door frame, and then cooperate with the brake assembly to buffer the double-protection door, thereby achieving the effect of preventing hand pinching, and then the rotation speed of the double-protection door at this time is detected through the speed sensor on the damping hinge, and then cooperate with the brake assembly at this time to achieve the effect of braking the double-protection door.

[0015] Preferably, when the electric control push rod is in an extended state, the sealing sleeve is in an expanded state, and the piston rod is clamped with the brake groove through the sealing sleeve;

[0016] When the electric control push rod is in a retracted state, the sealing sleeve is in a retracted state, and the sealing sleeve does not contact the limiting area of ​​the brake groove. By making the diameters of the first sliding plate and the second sliding plate consistent, and the edges of one side of the first sliding plate and the second sliding plate are tightly fitted with one side of the inner wall of the circular tube, at this time, when the second sliding plate generates a magnetic repulsive force on the magnetic block by the electromagnet, the second sliding plate will slide inside the circular tube. Since the second sliding plate is tightly fitted with the inner wall of the circular tube, the gas in the piston rod of the circular tube can be injected into the interior of the sealing sleeve to cause it to expand.

[0017] Technical effects and advantages of the present invention:

[0018] 1. The present invention sets the piston rod and the sealing sleeve and other components to cooperate with each other. The device can timely buffer and brake the double-defense door, and at the same time meet the different closing speeds of the double-defense door for buffering and braking. At the same time, the convex block exerts a reaction force on the brake groove, so that when the double-defense door rebounds, the sealing sleeve will not be separated from the brake groove, which not only achieves the effect of preventing fingers from being pinched, but also prevents the double-defense door from rebounding due to impact force.

[0019] 2. The present invention arranges the electromagnet and the magnetic block and other components to cooperate with each other. When the double-defense door is braked, the position of buffering or braking the double-defense door can be controlled by adjusting the extension and contraction amount of the piston rod, so as to meet the buffering and braking of the double-defense door at different rotation speeds, and improve the safety factor of the double-defense door in use. The rigidity of the piston rod is improved by the magnetic repulsion force generated by the electromagnet and the magnetic block, so that the double-defense door in rotation can be braked. However, when the negative current is passed into the electromagnet, a magnetic attraction force is generated on the magnetic block, and the piston rod is controlled to drive the double-defense door to complete closing through the sealing sleeve, thereby achieving the anti-theft effect.

[0020] 3. The present invention arranges the mutual cooperation of components such as an electric control push rod and a return spring. After the double-defense door is in contact, the electric control push rod pushes the gas to the piston rod, and the gas passes through the piston rod into the sealing sleeve, causing the sealing sleeve to expand and form a mutual limit with the brake groove. When the double-defense door is closed, the return spring will be in a compressed state and will offset the kinetic energy of the double-defense door during movement, thereby achieving the effect of buffering the double-defense door. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 It is a front view of the overall structure of the present invention;

[0023] Figure 3 It is a schematic diagram of the first connecting rod structure of the present invention;

[0024] Figure 4 It is an oblique view of the overall structure of the present invention;

[0025] Figure 5 It is a schematic diagram of the circular tube structure of the present invention;

[0026] Figure 6 It is a schematic diagram of the structure of the second sliding plate of the present invention;

[0027] Figure 7 This is a schematic diagram of the structure of the electric control push rod of the present invention;

[0028] Figure 8 This is a schematic diagram of the brake groove structure of the present invention;

[0029] Fig. 9 It is a schematic diagram of the structure of the sealing sleeve of the present invention in an expanded state.

[0030] In the figure: 1. door body assembly; 101. double-defense door; 102. handle; 2. installation assembly; 201. hinge; 202. door frame; 3. brake assembly; 301. mounting plate; 302. first connecting rod; 303. second connecting rod; 304. fixing block; 305. brake compartment; 306. round tube; 307. sealing sleeve; 308. piston rod; 309. electric control push rod; 310. first sliding plate; 311. second sliding plate; 312. return spring; 313. electromagnet; 314. magnetic block; 315. rotating shaft; 316. brake groove; 317. protrusion; 318. limit ring; 319. limit area; 320. entrance area. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0032] The present invention provides Figures 1 to 9 A double-defense safety door shown includes a door body assembly 1, a mounting assembly 2 and a brake assembly 3. The mounting assembly 2 is arranged on one side of the door body assembly 1, and the brake assembly 3 is arranged on the surface of the mounting assembly 2.

[0033] like Figure 3As shown, the brake assembly 3 also includes a mounting plate 301, a rotating shaft 315 is provided inside the mounting plate 301, a first connecting rod 302 is provided at the bottom end of the rotating shaft 315, and a second connecting rod 303 is provided at the other end of the first connecting rod 302, and the end of the second connecting rod 303 away from the first connecting rod 302 is rotatably connected to one side of the fixed block 304. By setting the rotating shaft 315, when the double-defense door 101 is rotating, the first connecting rod 302 and the second connecting rod 303 are controlled to rotate, and the first connecting rod 302 and the second connecting rod 303 complete the rotation action of the double-defense door 101 through the rotating shaft 315. At this time, the first connecting rod 302 and the second connecting rod 303 will cooperate with the damping hinge 201 to support and limit the door.

[0034] like Figure 4 As shown, the door body assembly 1 includes a double-defense door 101, a brake groove 316 is provided on one side of the double-defense door 101, a handle 102 is provided on one side of the double-defense door 101, the brake groove 316 includes a limit area 319 and an entrance area 320, the height dimension of the limit area 319 is greater than the height dimension of the entrance area 320, and the length of the limit area 319 is the same as that of the entrance area 320. By setting the brake groove 316, the sealing sleeve 307 contacts the surface of the double-defense door 101 and enters the brake groove 316. At this time, the sealing sleeve 307 is expanded by the electric control push rod 309, so that the surface of the expanded sealing sleeve 307 will completely contact the edge of the brake groove 316, thereby forming mutual limitation, thereby achieving the effect of limiting the double-defense door 101.

[0035] The installation component 2 includes a door frame 202, and a damping hinge 201 is provided on one side of the door frame 202. The number of the damping hinges 201 is set to two, and each damping hinge 201 is symmetrically arranged on one side of the door frame 202. A speed sensor is provided on one side of the damping hinge 201, and a temperature sensor is provided on one side of the door frame 202. By setting the temperature sensor and the speed sensor, firstly, it is possible to detect whether a human hand is on one side of the door frame 202 through the temperature sensor on the door frame 202, and then cooperate with the brake component 3 to buffer the double-defense door 101, so as to achieve the effect of preventing hand pinching, and then the speed sensor on the damping hinge 201 is used to detect the rotation speed of the double-defense door 101 at this time, and then cooperate with the brake component 3 at this time to achieve the effect of braking the double-defense door 101.

[0036] The brake assembly 3 includes a brake chamber 305 connected to the mounting assembly 2 . A round tube 306 is provided inside the brake chamber 305 . A piston rod 308 is provided inside the round tube 306 . A sealing sleeve 307 is provided at one end of the piston rod 308 away from the round tube 306 .

[0037] like Fig. 9As shown, a protrusion 317 is provided on one side of the sealing sleeve 307, and the number of the protrusions 317 is set in multiples, and each protrusion 317 is distributed in an array on the surface of the sealing sleeve 307. By setting the sealing sleeve 307, when the piston rod 308 controls the surface of the sealing sleeve 307 to contact with the braking groove 316 on the double-defense door 101, due to the expansion of the sealing sleeve 307, the surface of the sealing sleeve 307 will be tightly fitted to one side of the inner wall of the braking groove 316, thereby forming a mutual limiting effect, and then controlling the contraction of the piston rod 308 to complete the buffering effect on the double-defense door 101.

[0038] like Figure 7 As shown, a limiting ring 318 which is compatible with the second sliding plate 311 is provided on one side of the piston rod 308, and the surface of the second sliding plate 311 is connected to the inside of the piston rod 308 through the air outlet. By setting the piston rod 308, when the control electromagnet 313 generates a magnetic repulsion force on the magnetic block 314, the second sliding plate 311 will make a piston movement inside the circular tube 306, and at the same time, the piston rod 308 will be controlled to make a piston movement inside the circular tube 306. At this time, not only the braking range is extended, but also one side of the second sliding plate 311 will fit with one side of the limiting ring 318. At this time, the force of the reset spring 312 and the magnetic repulsion force are coordinated to increase the damping strength, thereby achieving the effect of buffering the double-defense door 101.

[0039] A second sliding plate 311 is provided at one end of the piston rod 308 located inside the circular tube 306 , a magnet 314 is provided at the end of the second sliding plate 311 , a return spring 312 is provided at the end of the magnet 314 , and a first sliding plate 310 is provided at the other end of the return spring 312 .

[0040] like Figure 6As shown, an electric control push rod 309 is provided on the left side of the first sliding plate 310. When the electric control push rod 309 is in an extended state, the sealing sleeve 307 is in an expanded state, and the piston rod 308 is clamped with the brake groove 316 through the sealing sleeve 307. When the electric control push rod 309 is in a contracted state, the sealing sleeve 307 is in a contracted state, and the sealing sleeve 307 does not contact the limiting area 319 of the brake groove 316. By making the diameters of the first sliding plate 310 and the second sliding plate 311 consistent, and the edges of one side of the first sliding plate 310 and the second sliding plate 311 are tightly fitted on one side of the inner wall of the circular tube 306, at this time, when the second sliding plate 311 generates a magnetic repulsion force on the magnetic block 314 after the electromagnet 313 generates a magnetic repulsion force on the second sliding plate 311, the second sliding plate 31 1 slides inside the circular tube 306. Since the second sliding plate 311 is tightly fitted with the inner wall of the circular tube 306, the gas in the piston rod 308 of the circular tube 306 can be injected into the interior of the sealing sleeve 307 to expand it. The other end of the electric control push rod 309 is arranged on the inner wall of the brake chamber 305, and the electric control push rod 309 is located at the center of the circular tube 306. By arranging the electric control push rod 309, when the electric control push rod 309 is turned on to make piston movement inside the circular tube 306, the gas in the circular tube 306 will enter the interior of the sealing sleeve 307 through the piston rod 308, so that the sealing sleeve 307 expands and forms a limit with the interior of the brake groove 316, thereby achieving the effect of braking the double-defense door 101.

[0041] An electromagnet 313 is provided at one end of the first sliding plate 310 facing the second sliding plate 311. By setting a reset spring 312, not only can the kinetic energy of the double-defense door 101 when closing be offset when the reset spring 312 is in a compressed state to form a damping effect, but also the second sliding plate 311 and the piston rod 308 can be limited in the initial state, so that when the double-defense door 101 is in a closed state, the piston rod 308 and the sealing sleeve 307 are always in contact with one side of the double-defense door 101 and exert pressure on one side of the double-defense door 101. At this time, the compression amount of the reset spring 312 can reflect whether the double-defense door 101 is in a closed state or an open state.

[0042] When in use, first when the user opens the double-defense door 101, by driving the handle 102, the double-defense door 101 is not limited by the wedge block on one side, and then a pulling force can be applied to the double-defense door 101, so that the double-defense door 101 makes a circular motion around one side of the door frame 202 through the damping hinge 201. In this process, the movement of the double-defense door 101 controls the first connecting rod 302 and the second connecting rod 303 to rotate. At the same time, the first connecting rod 302 and the second connecting rod 303 will drive the rotating shaft 315 to rotate inside the mounting plate 301 when rotating, so that the door opening operation can be realized. At the same time, the first connecting rod 302 and the second connecting rod 303 play a role in limiting the double-defense door 101 and relieve part of the damping hinge. The chain 201 bears the weight. When the double-defense door 101 needs to be stopped at a certain angle, it is only necessary to manually control the nut on the rotating shaft 315. When one side of the nut on the rotating shaft 315 contacts the bottom of the mounting plate 301, the rotating shaft 315 cannot rotate, so that the double-defense door 101 can hover at any angle. When the operator closes the door, it is only necessary to manually control the nut to restore the nut to its initial position so that the rotating shaft 315 is not subject to the rotation of the nut. At this time, the double-defense door 101 can be rotated through the first connecting rod 302 and the second connecting rod 303. At this time, it is only necessary to apply thrust to the double-defense door 101 and control the wedge block on one side of the double-defense door 101 and the slot on one side of the door frame 202 to limit each other.

[0043] It is worth mentioning that by setting a speed sensor on one side of the damping hinge 201, the rotation speed value of the double-protection door 101 during the working process can be monitored in real time. At the same time, by setting a temperature sensor on one side of the door frame 202, the temperature value on the door frame 202 can be detected in real time, and the temperature value on the door frame 202 can be used to reflect whether there is a human hand on one side of the door frame 202.

[0044] It is worth noting that: in the initial state, when the double-defense door 101 is in a closed state, the return spring 312 is in a compressed state, so that when the double-defense door 101 is closed, the piston rod 308 and the sealing sleeve 307 are always in contact with one side of the double-defense door 101 and the force of the return spring 312 applies pressure to one side of the double-defense door, and when the double-defense door 101 is in an open state, the compression of the return spring 312 will be released, and the second sliding plate 311 will be controlled to drive the piston rod 308 to slide to the right end of the circular tube 306, and one side of the second sliding plate 311 is in contact with one side of the limit ring 318.

[0045] When the temperature sensor detects that the temperature value on the door frame 202 is lower than the preset value, and the speed sensor located on the damping hinge 201 detects that the rotation speed value of the door frame 202 is far lower than the preset value, and at the same time detects that the compression state of the reset spring 312 is at the preset value, it means that the double-protection door 101 is in a closed state at this time and no adjustment is made.

[0046] When the temperature sensor detects that the temperature value on the door frame 202 is higher than the preset value, and the speed sensor located on the damping hinge 201 detects that the rotation speed value of the door frame 202 is at the preset value, and at the same time detects that the compression state of the reset spring 312 is less than the preset value, it means that someone is operating the double-defense door 101 to open the door, and the rotation speed of the double-defense door 101 is low-speed rotation. At this time, the damping hinge 201 can be used normally to offset the kinetic energy of the double-defense door 101 without making any adjustments.

[0047] When the temperature sensor detects that the local temperature on one side of the door frame 202 is higher than the preset value, and the speed sensor detects that the rotation speed of the double-defense door 101 is consistent with the preset value, it indicates that there is a hand at the door frame 202 and the rotation speed of the double-defense door 101 is normal. At this time, when the double-defense door 101 contacts the sealing sleeve 307, the piston rod 308 is in a stressed state, and the return spring 312 is compressed. At this time, due to the force on the piston rod 308, the second sliding plate 311 is controlled to move in the direction of the first sliding plate 310 inside the circular tube 306. At this time, due to the action of the return spring 312, the double-defense door 101 is buffered. At the same time, during the movement of the second sliding plate 311 and the piston rod 308, the gas in the circular tube 306 passes through The second sliding plate 311 enters into the interior of the piston rod 308 and directly enters into the interior of the sealing sleeve 307, causing the sealing sleeve 307 to expand slightly. When the double-defense door 101 contacts the sealing sleeve 307, the sealing sleeve 307 will enter into the braking groove 316 on the double-defense door 101. At this time, the double-defense door 101 controls the piston rod 308 to make a piston movement in the circular tube 306, causing the sealing sleeve 307 to expand slightly. The slightly expanded sealing sleeve 307 will form a force relative to the double-defense door 101 in the braking groove 316, thereby achieving the effect of buffering the double-defense door 101. At the same time, as the double-defense door 101 is about to touch a person's hand, it will gradually lose kinetic energy due to the compression degree of the reset spring 312, thereby achieving the effect of preventing the double-defense door 101 from pinching the hand.

[0048] When the temperature sensor detects that the local temperature on one side of the door frame 202 is higher than the preset value, and the speed sensor detects that the rotation speed of the double-defense door 101 is higher than the preset value, it indicates that there is a hand at the door frame 202 and the rotation speed of the double-defense door 101 is too fast. At this time, the electric control push rod 309 is turned on to push outward in the round tube 306, and the first sliding plate 310 is controlled to slide along the inside of the round tube 306. At this time, the return spring 312 is pressed during the sliding of the first sliding plate 310, and the right side of the second sliding plate 311 is fitted with one side of the limit ring 318. Since the return spring 312 is in a compressed state, the electromagnet 313 is turned on at the same time to pass the positive current, so that the electromagnet 313 and the magnetic block 314 generate The magnetic repulsion force cooperates with the return spring 312, so that the rigidity of the piston rod 308 is increased. At the same time, since one side of the second sliding plate 311 is always in close contact with one side of the limit ring 318, the extension and contraction amount of the piston rod 308 is at a maximum value at this time. At the same time, the electric control push rod 309 is turned on and the first sliding plate 310 is pushed to continuously approach the second sliding plate 311, which makes the magnetic repulsion force generated at this time also at a maximum value. When the double-defense door 101 contacts the piston rod 308, the return spring 312 is compressed and slightly contracted by the impact force and slightly contracted by the magnetic repulsion force. When the return spring 312 is detected to be extended during the contraction process, it indicates that the double-defense door 101 rebounds and is controlled to move quickly toward the direction of the piston rod 308.

[0049] Since one side edge of the first sliding plate 310 is in close contact with the inner wall of the circular tube 306, the gas in the circular tube 306 will enter the piston rod 308 through the second sliding plate 311 and enter the sealing sleeve 307, so that the sealing sleeve 307 is in a highly expanded state. Since the sealing sleeve 307 is in a highly expanded state, the sealing sleeve 307 is completely clamped in the limiting area 319 in the brake groove 316.

[0050] However, when the sealing sleeve 307 is highly expanded, the protrusion 317 on its surface will be in a raised state, and at the same time, the surface of the protrusion 317 in the raised state will contact one side of the brake groove 316. The protrusion 317 squeezes the limiting area 319, so that the double-defense door 101 moves toward the door frame 202, reducing the rebound phenomenon of the double-defense door 101 after the collision, and avoiding the phenomenon of human injury caused by the rebound of the double-defense door 101.

[0051] It should be noted that when the double-defense door 101 rebounds, the protrusion 317 on the sealing sleeve 307 will apply an opposite force to the double-defense door 101 to prevent the double-defense door 101 from detaching due to the reaction force, thereby not only preventing fingers from being pinched, but also preventing the double-defense door 101 from rebounding due to the reaction force.

[0052] When it is detected that the compression amount of the return spring 312 is lower than the preset value, it indicates that the double-defense door 101 is not completely closed when passing through the buffering process of the piston rod 308, so that there is a gap between the double-defense door 101 and the door frame 202, and at this time, one side of the double-defense door 101 is not mutually limited with one side of the door frame 202, resulting in the compression amount of the return spring 312 being lower than the preset value, and the control electromagnet 313 inputs positive current and generates magnetic repulsion on the magnetic block 314, so that the piston rod 308 8 drives the sealing sleeve 307 to enter the brake groove 316. At this time, the electric control push rod 309 is opened to slide in the direction of the double-defense door 101. At the same time, when the electric control push rod 309 slides, the gas inside the round tube 306 is pushed to the inside of the piston rod 308 and enters the sealing sleeve 307, causing it to expand. In this way, the sealing sleeve 307 can be filled into the brake groove 316 and form a mutual limiting relationship. At this time, the electric control push rod 309 is controlled to shrink, and the electromagnet 313 is pressed. The negative current is input, and the magnetic attraction force is generated on the magnetic block 314 and the second sliding plate 311 is controlled to slide in the direction of the first sliding plate 310. At this time, the reset spring 312 is still in a compressible state. When the electric control push rod 309 contracts, the second sliding plate 311 still slides in the direction of the first sliding plate 310. During this process, the expansion amount of the sealing sleeve 307 will not change. At the same time, the piston rod 308 will slide in the direction of the sliding of the second sliding plate 311. When the electric control push rod 309 contracts to the initial position, the second sliding plate 311 and the piston rod 308 will be controlled to return to the initial position. At this time, the double-proof door 101 is in the limited state of the sealing sleeve 307 and cooperates with the sliding of the piston rod 308 to complete the closed state. At this time, the control electromagnet 313 is powered off, so that the electromagnet 313 and the magnetic block 314 are restored to the initial state, and the compression amount of the reset spring 312 is restored to the initial state, thereby completing the function of controlling the automatic closing of the double-proof door 101 to achieve an anti-theft effect.

[0053] It is worth noting that: when the electromagnet 313 is in the initial state, the state of the electromagnet 313 is not energized, and it will not generate magnetic attraction or magnetic repulsion on the magnetic block 314. However, when the double-defense door 101 needs to be braked, the electromagnet 313 is in a energized state and a positive current is passed through. At this time, the electromagnet 313 will generate a magnetic repulsion on the magnetic block 314, and cooperate with the compression force of the reset spring 312 to increase the rigidity of the piston rod 308. When the double-defense door 101 that is not fully closed needs to be automatically closed, the state of the electromagnet 313 is energized, and the positive current is first passed through. At this time, the electromagnet 313 will generate a magnetic repulsion on the magnetic block 314. When the sealing sleeve 307 enters the brake groove 316 and forms a limit with it, a negative current is passed through the electromagnet 313, so that the electromagnet 313 generates a magnetic attraction on the magnetic block 314, which is convenient for adjusting the position of the piston rod 308.

[0054] It is worth noting that: when the electromagnet 313 generates a magnetic repulsive force on the magnetic block 314 and controls the piston rod 308 to extend outward, and at the same time, the sealing sleeve 307 enters the brake groove 316, the sealing sleeve 307 is controlled to expand by the electric control push rod 309. When the current in the electromagnet 313 needs to be changed, the reset spring 312 is still in a state where it can continue to be compressed, thereby ensuring that after the electromagnet 313 generates a magnetic attraction force on the magnetic block 314, the second sliding plate 311 and the piston rod 308 can be contracted by the magnetic attraction force, and the inward sliding process of the second sliding plate 311 will not cause motion interference due to the compression force of the reset spring 312.

[0055] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. 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 double-defense safety door, characterized in that: It comprises a door body component (1), a mounting component (2) and a brake component (3), wherein the mounting component (2) is arranged on one side of the door body component (1), and the brake component (3) is arranged on the surface of the mounting component (2); The brake assembly (3) comprises a brake chamber (305) connected to the mounting assembly (2); a round tube (306) is provided inside the brake chamber (305); a piston rod (308) is provided inside the round tube (306); a sealing sleeve (307) is provided at one end of the piston rod (308) away from the round tube (306); a second sliding plate (311) is provided at one end of the piston rod (308) located inside the round tube (306); a magnetic block (314) is provided at the end of the second sliding plate (311); a return spring (312) is provided at the end of the magnetic block (314); a first sliding plate (310) is provided at the other end of the return spring (312); an electromagnet (313) is provided at one end of the first sliding plate (310) facing the second sliding plate (311).

2. The double-defense safety door according to claim 1, characterized in that: A protrusion (317) is provided on one side of the sealing sleeve (307), and the number of the protrusions (317) is multiple, and each of the protrusions (317) is distributed in an array on the surface of the sealing sleeve (307).

3. The double-defense safety door according to claim 1, characterized in that: The brake assembly (3) also includes a mounting plate (301), a rotating shaft (315) is provided inside the mounting plate (301), a first connecting rod (302) is provided at the bottom end of the rotating shaft (315), and a second connecting rod (303) is provided at the other end of the first connecting rod (302), and a fixing block (304) is provided at one end of the second connecting rod (303) away from the first connecting rod (302).

4. The double-defense safety door according to claim 1, characterized in that: The door body assembly (1) comprises a double-defense door (101), a brake groove (316) is provided on a side of the double-defense door (101) close to the installation assembly (2), and the brake groove (316) and the sealing sleeve (307) are at the same height, and a handle (102) is provided on a side of the double-defense door (101) away from the installation assembly (2), and the brake groove (316) comprises a limit area (319) and an entrance area (320), the height dimension of the limit area (319) is greater than the height dimension of the entrance area (320), and the length of the limit area (319) and the entrance area (320) are the same.

5. The double-defense safety door according to claim 1, characterized in that: An electric control push rod (309) is provided on one side of the first sliding plate (310), the other end of the electric control push rod (309) is arranged on the inner wall of the brake chamber (305), and the electric control push rod (309) is located at the center of the inner circle of the circular tube (306).

6. The double-defense safety door according to claim 2, characterized in that: A limiting ring (318) adapted to the second sliding plate (311) is provided on one side of the piston rod (308), and the surface of the second sliding plate (311) is connected to the interior of the piston rod (308) via an air outlet.

7. The double-defense safety door according to claim 4, characterized in that: The installation assembly (2) comprises a door frame (202), one side of the door frame (202) is provided with a damping hinge (201), the door frame (202) is rotatably connected to one side of the double-protection door (101) via the damping hinge (201), the number of the damping hinges (201) is set to two, and each damping hinge (201) is symmetrically arranged on one side of the door frame (202), one side of the damping hinge (201) is provided with a speed sensor, and one side of the door frame (202) is provided with a temperature sensor.

8. The double-defense safety door according to claim 5, characterized in that: When the electric control push rod (309) is in an extended state, the sealing sleeve (307) is in an expanded state, and the piston rod (308) is clamped with the brake groove (316) through the sealing sleeve (307); When the electric control push rod (309) is in a retracted state, the sealing sleeve (307) is in a retracted state, and the sealing sleeve (307) does not contact the limiting area (319) of the braking groove (316).

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