Intelligent sensing anti-collision protection device for revolving door

Abstract

The invention discloses an intelligent sensing anti-collision protection device for a revolving door, and relates to the technical field of revolving door protection equipment, the intelligent sensing anti-collision protection device comprises a fixed glass frame, a central shaft assembly, the revolving door, a detachable anti-pinch part, an anti-collision part and a buffer assembly; the anti-collision part comprises a protective curtain, and the protective curtain is of an array type grating structure and can be rapidly unfolded and achieve buffering through gas filling; the detachable anti-pinch part can adjust the gap between the revolving door and the fixed glass frame, so that the hand is prevented from being pinched, and disassembly and maintenance are convenient; through cooperative linkage of multiple structures, all-directional anti-collision and anti-pinch and pedestrian behavior warning are achieved, operation is stable, universality is high, the intelligent revolving door is suitable for revolving doors in various public places, use safety and management convenience can be remarkably improved, and the problem that an existing revolving door lacks pedestrian behavior sensing warning and protection is solved.

Description

Technical Field

[0001] This invention relates to the technical field of revolving door protection equipment, and in particular to an intelligent sensing anti-collision protection device for revolving doors. Background Technology

[0002] With the acceleration of urbanization and the improvement of building intelligence, revolving doors have been widely used at the entrances and exits of various large buildings due to their unique structural advantages. However, during operation, revolving doors are prone to accidents due to the continuous rotation of the door body, the inherent gap between the door body and the fixed frame, and the lack of effective intelligent detection and anti-collision protection mechanisms, which threaten the personal and property safety of users.

[0003] For example, Chinese patent CN214463642U discloses a revolving door with multiple protections and automatic stop function. It includes a base plate with an annular connecting part on its outer wall. Two symmetrically arranged arc-shaped tempered glass inner walls are provided on the upper surface of the base plate. Two symmetrically arranged arc-shaped tempered glass outer walls are provided at the top of the annular connecting part. An arc-shaped sliding door is provided between the contact surfaces of the arc-shaped tempered glass inner and outer walls. A top plate is fixedly connected to the top of the arc-shaped tempered glass inner and outer walls. A motor is threaded to the top of the top plate, and an infrared sensor is threaded to the front of the top plate. During use, the opening and closing of the arc-shaped sliding door is controlled by a forward / reverse motor and a cross-shaped connecting plate. When the revolving door is not in use, it can be closed. A support column connected to it can drive the tempered glass blocks to rotate, and the rotation and stopping of the revolving door are controlled by the infrared sensor.

[0004] However, the aforementioned revolving doors still have some shortcomings in actual use: 1. Existing protective measures for revolving doors are mostly simple, such as affixing warning signs to the glass surface and installing simple flexible rubber strips on the edges of the door. However, the warning signs can only serve as reminders and cannot fundamentally prevent collisions and pinching accidents. In addition, they lack active protection capabilities, and the rubber strips are mostly fixed installations that cannot be adjusted according to the gap between the revolving door and the fixed glass frame. When the gap is too large, the protective effect is greatly reduced, and when the gap is too small, it will affect the normal operation of the revolving door.

[0005] 2. Secondly, the existing revolving door is a rigid connection. When an object hits it, both the revolving door and the object will be subjected to a large impact force. The impact inertia cannot be effectively dissipated in a short time, which will not only cause injury to people, but also damage to the revolving door glass, and even more seriously, cause the glass to shatter.

[0006] Therefore, based on the above-stated viewpoints, there is still room for improvement in existing revolving doors. Summary of the Invention

[0007] To address the aforementioned problems, this invention provides an intelligent sensing anti-collision protection device for revolving doors, employing the following technical solution: A smart sensor anti-collision protection device for a revolving door includes a fixed glass frame, a central shaft assembly located in the middle of the fixed glass frame, and a revolving door mounted on the central shaft assembly. The side wall of the revolving door is provided with a detachable anti-pinch component for protection, and the central shaft assembly is provided with a buffer component. The buffer assembly includes a T-shaped block rotatably mounted on the inner wall of the fixed glass frame, an adjusting spring mounted on the top of the central shaft assembly, a secondary control gear movably mounted on the central shaft assembly, and a protrusion integrated on the top of the secondary control gear; The bottom of the T-shaped block has a serrated groove, and the protruding block has serrations that correspond to the serrated groove of the T-shaped block. The detachable anti-pinch component includes a fixed frame and a movable frame on the side wall of the revolving door for adjusting the gap between the door and the fixed glass frame. The fixed frame and the movable frame are slidably distributed relative to each other, and an actuation unit is provided between them.

[0008] Preferably, the execution unit includes an execution rod for controlling the extension and retraction of the movable frame, a limiting sleeve installed on the inner wall of the movable frame and having a slot, and a rotating gear and a moving rack for controlling the rotation of the execution rod. One end of the actuator is hinged to the inner wall of the fixed frame, and the other end of the actuator is slidably disposed in the slot of the limiting sleeve. The rotating gear is fixed on the side where the actuator is hinged to the fixed frame, and the moving rack is slidably mounted on the inner wall of the fixed frame and meshes with the rotating gear.

[0009] Preferably, a telescopic spring is installed between the moving rack and the fixed frame, and the telescopic spring always exerts a pulling force on the moving rack.

[0010] Preferably, a main control motor is also installed inside the fixed glass frame at the upper end of the central shaft assembly. The output shaft of the main control motor faces downward and is equipped with a main control gear. The auxiliary control gear meshes with the main control gear.

[0011] Preferably, a U-shaped frame is provided on the side wall of the auxiliary control gear, the U-shaped frame is rotatably connected to the auxiliary control gear, and an electric push rod is also installed in the fixed glass frame at the upper end of the central shaft assembly, the output end of the electric push rod is connected to the U-shaped frame.

[0012] Preferably, a metal protective frame is integrally installed on the glass door of the revolving door, and the metal protective frame is provided with a long strip for mounting a fixed frame, which is slidably mounted on the long strip on the metal protective frame.

[0013] Preferably, the two ends of the fixed frame are hinged with snap-fit ​​blocks by torsion springs, and the metal protective frame and the long strip are provided with a plug interface for the snap-fit ​​blocks to be inserted.

[0014] Preferably, the outer wall of the movable frame is provided with a windproof buffer brush, and a pressure sensor is provided between the movable frame and the fixed frame.

[0015] Preferably, the central shaft assembly is further provided with a collision protection part that is easy to disassemble and install. The collision protection part includes a protective frame, a collision protection motor, a protective curtain, and a protective rod. The central shaft assembly has a protective groove for inserting and installing the protective frame. An anti-collision motor is installed inside the protective frame, and a protective rod is also rotatably installed inside the protective frame. The output end of the anti-collision motor is connected to the rotation point of the protective rod. The protective curtain is located inside the protective frame, with one end of the protective curtain connected to the protective rod and the other end connected to the protective frame.

[0016] Preferably, the entrance and exit of the fixed glass frame are equipped with electrically connected behavior sensors to sense the behavior of pedestrians and to alarm and illuminate the lights to indicate abnormal behavior. Warning lights and detection sensors are also installed inside the glass of the revolving door.

[0017] In summary, this application includes at least one of the following beneficial technical effects: I. This invention utilizes the synergistic effect of a buffer component and a detachable anti-pinch component. The buffer component can mitigate the impact force during the rotation of the revolving door, preventing damage from hard collisions. The detachable anti-pinch component can flexibly adjust the gap between the revolving door and the fixed glass frame, effectively preventing pedestrians or objects from being pinched. At the same time, the windproof buffer brush and anti-collision part further enhance the protective effect, ensuring the safety of personnel and equipment in all aspects.

[0018] Second, the detachable anti-pinch component of this invention is detachably connected to the metal protective frame via a snap-fit ​​block, and the anti-collision part adopts a plug-in installation method, which facilitates disassembly, maintenance and replacement in the later stage and reduces maintenance costs; at the same time, the fixed frame can slide along the long strip of the metal protective frame, which improves the flexibility of component installation and adjustment.

[0019] Third, the execution unit of this invention can drive the movable frame to extend and retract flexibly, adjust the gap size, and adapt to the protection requirements of different scenarios; the electric push rod can adjust the meshing state of the auxiliary control gear and the T-block, and in conjunction with the adjusting spring, realize the flexible adjustment of the buffer force to adapt to different operating speeds and working conditions of the revolving door. Attached Figure Description

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0021] Figure 1 This is a schematic diagram of the main structure of the present invention.

[0022] Figure 2 This is a schematic diagram of the structure between the detachable anti-pinch component and the buffer assembly of the present invention.

[0023] Figure 3This is a schematic diagram of the structure of the buffer component of the present invention.

[0024] Figure 4 This is a schematic diagram of the structure between the revolving door and the detachable anti-pinch component of the present invention.

[0025] Figure 5 This is a schematic diagram of the structure between the metal protective frame and the detachable anti-pinch component of the present invention.

[0026] Figure 6 This is a schematic diagram of the structure of the execution unit of the present invention.

[0027] Figure 7 This is the present invention. Figure 6 Enlarged view of the local structure at point A in the image.

[0028] Figure 8 This is the present invention. Figure 6 Enlarged view of the local structure at point B in the image.

[0029] Figure 9 This is a schematic diagram of the anti-collision part of the present invention.

[0030] Explanation of reference numerals in the attached figures: 1. Fixed glass frame; 2. Central shaft assembly; 3. Revolving door; 4. Detachable anti-pinch component; 5. Buffer assembly; 50. T-block; 51. Adjusting spring; 52. Secondary control gear; 53. Protrusion; 54. Serrated groove; 55. Serrated edge; 40. Fixed frame; 41. Movable frame; 42. Actuation unit; 420. Actuation rod; 421. Limit sleeve; 422. Rotary gear; 423. Moving rack; 424. Strip groove; 425. Telescopic spring; 10. Main control motor; 11. Main control gear; 12. C-shaped frame; 13. Electric push rod; 30. Metal protective frame; 31. Long strip; 32. Snap-fit ​​block; 33. Insertion interface; 6. Anti-collision part; 60. Protective frame; 61. Anti-collision motor; 62. Protective curtain; 63. Protective rod. Detailed Implementation

[0031] The following combination Figures 1-9 This application will be described in further detail.

[0032] This invention provides an intelligent sensing anti-collision protection device for revolving doors, which integrates intelligent sensing and linkage early warning mechanisms to achieve multiple anti-collision and anti-pinch protection, thereby improving the anti-collision and anti-pinch performance of the revolving door 3; it comprehensively protects the safety of personnel and equipment, and meets the high standard requirements of various building entrances for the safety protection of the revolving door 3.

[0033] Example 1: Reference Figure 1 and Figure 2As shown, a smart sensor anti-collision protection device for a revolving door includes a fixed glass frame 1, a central shaft assembly 2 located in the middle of the fixed glass frame 1, and a revolving door 3 installed on the central shaft assembly 2. The side wall of the revolving door 3 is provided with a detachable anti-pinch component 4 for protection, and the central shaft assembly 2 is provided with a buffer component 5.

[0034] The buffer assembly 5, by adjusting the engagement of the spring 51 and the gear, can effectively mitigate the impact force during the rotation of the revolving door 3, prevent the revolving door 3 components from colliding hard with the fixed glass frame 1, reduce the wear and malfunction of equipment components, and at the same time, when encountering obstructions from foreign objects or collisions with pedestrians, it can achieve buffering and deceleration, reducing the harm to people and objects.

[0035] The detachable anti-pinch component 4 can flexibly adjust the gap between the revolving door 3 and the fixed glass frame 1, fill the blind spot of protection, and effectively prevent pedestrians or objects from being pinched, especially suitable for the passage safety of the elderly, children and other people with mobility difficulties.

[0036] The outer wall of the movable frame 41 is equipped with windproof buffer brushes. These brushes not only enhance the sealing performance but also provide auxiliary cushioning to prevent damage caused by hard contact.

[0037] Reference Figure 2 and Figure 3 As shown, a main control motor 10 is installed in the fixed glass frame 1 at the upper end of the central shaft assembly 2. The main control motor 10 is a high-torque servo motor or a brushless DC motor that has been precisely selected and has the characteristics of low speed and high torque. The output shaft of the main control motor 10 is vertically downward and a main control gear 11 is installed at the end. The main control gear 11 and the auxiliary control gear 52 are in a horizontal meshing state, which transmits the rotational power of the motor to the buffer assembly 5 and the central shaft assembly 2.

[0038] In practice, the main control motor 10 is started first. The main control motor 10 drives the main control gear 11 to rotate slowly and uniformly. The main control gear 11 meshes with the auxiliary control gear 52. Therefore, the central shaft assembly 2 and the revolving door 3, which mesh with the auxiliary control gear 52, will also rotate slowly and uniformly, so that pedestrians can pass through the entire revolving door 3 in an orderly manner.

[0039] However, it should be noted that some children may be mischievous and bump into the glass of the revolving door 3, and elderly people may not be used to the revolving door 3 and may fall. In such cases, it is necessary to prevent secondary injuries. Therefore, this application proposes a buffer component 5, which aims to solve the safety hazards caused by the hard connection of the traditional revolving door 3.

[0040] Reference Figure 3As shown, the buffer assembly 5 includes a T-shaped block 50 rotatably mounted on the inner wall of the fixed glass frame 1, an adjusting spring 51 mounted on the top of the central shaft assembly 2, a secondary control gear 52 movably mounted on the central shaft assembly 2, and a protrusion 53 integrally formed on the top of the secondary control gear 52.

[0041] First is the T-block 50. The T-block 50 is not fixed, but is rotatably installed on the inner wall of the fixed glass frame 1 (the load-bearing box or drive box above the central shaft assembly 2). The geometric design of the T-block 50 enables it to withstand large axial pressure and radial torque. The bottom key part of the T-block 50 is provided with serrated grooves 54. These serrated grooves 54 have a specific pressure angle, which can transmit torque and generate slippage under overload.

[0042] Secondly, there is the adjusting spring 51, which is installed on the top of the central shaft assembly 2. Its function is to apply a constant and adjustable axial preload to the mechanism below. The magnitude of the preload directly determines the trigger threshold of the buffer assembly 5. If the preload is too large, the door will be too rigid; if the preload is too small, the door may slip under normal wind pressure.

[0043] The auxiliary control gear 52 is movably mounted on the central shaft assembly 2. It can rotate with the shaft and also move axially (float up and down) within a certain range on the central shaft assembly 2. The top of the auxiliary control gear 52 is not flat, but is integrally provided with a protrusion 53. The upper surface of the protrusion 53 is machined with serrations 55 that perfectly correspond to the serration grooves 54 of the T-shaped block 50.

[0044] Let's look again. Figure 2 and Figure 3 As shown, a U-shaped frame 12 is provided on the side wall of the auxiliary control gear 52, and an electric push rod 13 is also installed in the fixed glass frame 1 at the upper end of the central shaft assembly 2. The output end of the electric push rod 13 is connected to the U-shaped frame 12.

[0045] In practice, under normal operating conditions, the C-shaped frame 12 and the electric push rod 13 press down on the auxiliary control gear 52, so that the auxiliary control gear 52 is initially engaged with the main control gear 11, and the main control motor 10 can normally control the rotating door 3 to rotate at a constant speed and work.

[0046] However, when the revolving door 3 is subjected to an abnormal impact (such as a crowd pushing the door panel to accelerate, or the door panel hitting a hard obstacle and being forced to stop abruptly), a huge impact torque will be applied to the secondary control gear 52 instantly. At this time, the electric push rod 13 and the U-shaped bracket 12 drive the secondary control gear 52 to move upward along the central shaft assembly 2. The serrations 55 on the protrusion 53 of the secondary control gear 52 contact the serration grooves 54 of the T-shaped block 50, which will cause the serrations 55 on the protrusion 53 to skip teeth or slip.

[0047] The process of skipping teeth is essentially the process of converting the rigid impact kinetic energy into the elastic potential energy and frictional heat energy of the regulating spring 51, thereby cutting off the rigid connection, protecting the main control motor 10 from damage, and at the same time giving the revolving door 3 a small buffer angle, reducing the damage to the impacted object.

[0048] Furthermore, the most dangerous area of ​​the revolving door 3 is the dynamic gap between the edge of the glass door and the fixed glass frame 1. The detachable anti-pinch component 4 of the present invention achieves intelligent and flexible protection in this area through a clever mechanical linkage mechanism.

[0049] Reference Figure 4 , Figure 5 and Figure 6 As shown, the glass door of the revolving door 3 is also equipped with an integrated metal protective frame 30. The metal protective frame 30 is provided with a long strip 31 for mounting the fixed frame 40. The fixed frame 40 is slidably mounted on the long strip 31 on the metal protective frame 30.

[0050] The detachable anti-pinch component 4 includes a fixed frame 40 and a movable frame 41 on the side wall of the revolving door 3 for adjusting the gap between it and the fixed glass frame 1. The fixed frame 40 and the movable frame 41 are slidably distributed relative to each other, and an execution unit 42 is provided between them.

[0051] The detachable anti-pinch component 4 is not just a simple anti-collision strip, but a complex mechanical mechanism comprising a fixed frame 40 and a movable frame 41 mounted on the side wall of the revolving door 3. The fixed frame 40 serves as a base, while the movable frame 41 is in direct contact with the external environment; both are used to adjust the gap between themselves and the fixed glass frame 1. The fixed frame 40 and the movable frame 41 are relatively slidably distributed, and a precision actuator 42 is provided between them to control this relative movement.

[0052] The movable frame 41 and the fixed frame 40 cooperate to adjust the gap between the revolving door 3 and the overall fixed glass frame 1. The fixed frame 40 and the movable frame 41 are relatively slidably distributed. An execution unit 42 is arranged between them. The execution unit 42 drives the movable frame 41 to slide relative to the fixed frame 40, thereby flexibly adjusting the gap size.

[0053] If a pedestrian or child is suddenly stuck in the gap, the gap between the movable frame 41 and the overall fixed glass frame 1 can be adjusted to allow the person to escape quickly.

[0054] Both the fixed frame 40 and the movable frame 41 are made of high-strength aluminum alloy, which has the characteristics of lightweight structure, high strength and corrosion resistance, making it easy to assemble and maintain. At the same time, it can reduce the overall load of the revolving door 3 and avoid affecting the rotation flexibility of the revolving door 3.

[0055] The fixed frame 40 has a U-shaped cross-section to accommodate the movable frame 41 and the execution unit 42. The movable frame 41 is slidably assembled in the U-shaped groove of the fixed frame 40. A slide rail and a slider are assembled between the two. The slide rail is fixed to the inner wall of the fixed frame 40, and the slider is fixed to the outer wall of the movable frame 41. The slide rail and the slider are precision machined to ensure smooth sliding without jamming. At the same time, it can improve the stability of the relative sliding between the two and prevent the movable frame 41 from shifting or shaking during the sliding process, thus ensuring the accuracy of the gap adjustment.

[0056] Reference Figure 7 and Figure 8 As shown, the execution unit 42 includes an execution rod 420 for controlling the extension and retraction of the movable frame 41, a limiting sleeve 421 installed on the inner wall of the movable frame 41 and having a strip groove 424, and a rotating gear 422 and a moving rack 423 for controlling the rotation of the execution rod 420.

[0057] One end of the actuator 420 is hinged to the inner wall of the fixed frame 40, and the other end of the actuator 420 is slidably disposed in the slot 424 of the limiting sleeve 421. The rotating gear 422 is fixedly disposed on the side where the actuator 420 is hinged to the fixed frame 40. The movable rack 423 is slidably mounted on the inner wall of the fixed frame 40 and meshes with the rotating gear 422.

[0058] A telescopic spring 425 is installed between the movable rack 423 and the fixed frame 40, and the telescopic spring 425 always exerts a pulling and contracting force on the movable rack 423.

[0059] In practice, under natural conditions (without external pressure), the telescopic spring 425 pulls the moving rack 423. The movement of the moving rack 423 drives the rotating gear 422 to rotate through meshing. The rotating gear 422 drives the actuating rod 420 to deflect. The end of the actuating rod 420 slides in the slot 424 of the limiting sleeve 421 and pushes the movable frame 41 outward. Therefore, under the action of the telescopic spring 425, the movable frame 41 always maintains the tendency to extend outward, which can fill the gap between the door and the wall to the greatest extent and prevent children from crawling in.

[0060] If a child is accidentally trapped, the movable frame 41 will be subjected to compressive force. When the pressure sensor between the movable frame 41 and the fixed frame 40 detects the significant pressure, it works in conjunction with the existing behavior sensor to detect that someone is trapped in the gap between the fixed frame 40 and the fixed glass frame 1. The existing electronic control device (known device, such as an electric actuator) quickly pulls the moving rack 423, causing the moving rack 423 to control the rotating gear 422 to rotate until the rotating gear 422 controls the actuator 420 to rotate. During the rotation, the actuator 420 causes the movable frame 41 to retract into the fixed frame 40. The movable frame 41 quickly retracts, greatly increasing the gap space, thereby releasing the trapped object or limb and avoiding serious injuries such as fractures. This ensures that the trapped person can be quickly freed.

[0061] Let's look again. Figure 7 As shown, in addition, a metal protective frame 30 is integrally installed on the glass door of the revolving door 3. The metal protective frame 30 is provided with a long strip 31 for mounting the fixed frame 40. The fixed frame 40 is slidably mounted on the long strip 31 on the metal protective frame 30.

[0062] The two ends of the fixed frame 40 are hinged with torsion springs and have snap-fit ​​blocks 32 installed. The metal protective frame 30 and the long strip 31 are provided with a plug interface 33 for the snap-fit ​​blocks 32 to be inserted.

[0063] Considering the fragility of the glass in the revolving door 3 and the high difficulty of its installation, the glass door of the revolving door 3 is not directly drilled to install the detachable anti-pinch component 4. Instead, it is integrally installed with a metal protective frame 30 (such as aluminum alloy or stainless steel edging). The metal protective frame 30 has a pre-fabricated through strip 31 (guide rail or slide). The fixed frame 40 of the detachable anti-pinch component 4 has a corresponding slider structure on its back, which can be easily slidably mounted on the strip 31 on the metal protective frame 30.

[0064] To further enable tool-free or quick-release maintenance, the two ends of the fixed frame 40 are fitted with snap-fit ​​blocks 32 by torsion spring hinges.

[0065] Once the fixed frame 40 slides into place, the locking block 32 automatically pops out or snaps into place under the action of the torsion spring, locking the position. At the same time, the fixed frame 40 has an insertion interface 33 for the locking block 32 to be inserted, making the locking more secure. When maintenance personnel need to replace the anti-pinch rubber strip or inspect the internal spring, they only need to press the locking block 32 to easily remove the entire detachable anti-pinch component 4, which greatly reduces the labor cost of maintenance.

[0066] As the part that comes into direct contact with the human body, the active frame 41 is thoughtfully equipped with windproof and cushioning brushes on its outer wall. These high-density nylon or wool brushes can effectively sweep away dust from the ground and walls when the door rotates, block the intrusion of cold outdoor wind, and, more importantly, provide an extremely soft touch in the initial stage of a collision, giving pedestrians both psychological and physiological cushioning.

[0067] Example 2: Reference Figure 9 As shown, based on Embodiment 1, pedestrian protection is also taken into consideration. Therefore, a unique anti-collision part 6 that is easy to disassemble and install is designed in the central axis assembly 2.

[0068] The central shaft assembly 2 is also equipped with a collision protection part 6 that is easy to disassemble and install. The collision protection part 6 includes a protective frame 60, a collision protection motor 61, a protective curtain 62, and a protective rod 63.

[0069] The central shaft assembly 2 has a protective groove for the insertion and installation of the protective frame 60. An anti-collision motor 61 is installed inside the protective frame 60. A protective rod 63 is also rotatably installed inside the protective frame 60. The output end of the anti-collision motor 61 is connected to the rotation point of the protective rod 63. The protective curtain 62 is located inside the protective frame 60, and one end of the protective curtain 62 is connected to the protective rod 63 and the other end is connected to the protective frame 60.

[0070] The anti-collision motor 61 serves as a power source, and its output end is connected to the rotatably mounted protective rod 63. The protective curtain 62 is normally stored in the protective frame 60 and hidden inside the central shaft.

[0071] When a pedestrian is detected approaching the glass door rapidly and is unable to control their behavior, the anti-collision motor 61 is activated, driving the protective rod 63 to rotate and quickly releasing and pulling out the protective curtain 62. One end of the protective curtain 62 is connected to the protective rod 63, and the other end is connected to the edge of the protective frame 60. The unfolding of the protective curtain 62 can effectively prevent pedestrians from rapidly impacting the glass, causing the glass to shatter and causing secondary injuries to the pedestrians.

[0072] The protective frame 60 is equipped with a miniature high-pressure gas cylinder and an electrically controlled valve. The protective curtain 62 is a hollow sandwich airbag structure. The electrically controlled valve is electrically connected to the control center and opens to inflate the air when the anti-collision motor is started.

[0073] In addition, after the glass breaks, the protective curtain 62 can isolate pedestrians and protect them from collisions.

[0074] Furthermore, the support of advanced sensors is indispensable for improving the accuracy and efficiency of collision avoidance.

[0075] At the entrance and exit of the fixed glass frame 1, there are electrically connected behavior sensors. These behavior sensors are not just simple motion detection sensors, but behavior analysis probes that use Time-of-Flight (ToF) technology or stereo vision technology. They can sense the behavior of pedestrians, such as identifying whether a pedestrian is walking normally, running, falling, or loitering at the door. Once abnormal behavior is detected (such as someone falling in the rotating area), the system will immediately control the revolving door 3 to stop and issue an alarm through voice broadcast and light prompts to remind security personnel to intervene.

[0076] In addition, the revolving door 3 has a built-in warning light and detection sensor inside the glass (the interlayer or hollow layer between the two tempered glass layers); this built-in design is aesthetically pleasing and tamper-proof; the detection sensor can be capacitive or microwave type, used to detect whether a person is pressed against the glass; when someone is detected pressing against the door, the warning light inside the glass will flash red, visually warning passengers to keep their distance. At the same time, the warning light can also serve as a decorative light strip, changing color according to the rotation speed, enhancing the building's technological feel.

[0077] During operation: First, the equipment starts up. After the control center (existing known external control system) receives a normal signal, it drives the main control motor 10 to drive the revolving door 3 to rotate at a constant speed. The buffer component 5 maintains the preset state to alleviate the normal impact force and reduce the wear of the parts. The movable frame 41 remains extended to fill the protection blind spot. It works with the windproof buffer brush to achieve flexible protection, taking into account both sealing and pedestrian safety, and is suitable for special groups of people to pass through.

[0078] Step 2: When the revolving door 3 encounters an abnormal impact, the impact torque acts on the central shaft and the auxiliary control gear 52, triggering the linkage of the control center, driving the electric push rod 13 to move the auxiliary control gear 52 upward, causing the protrusion 53 and the sawtooth 55 of the T-shaped block 50 to slip and convert the impact kinetic energy into elastic potential energy and heat energy, thereby achieving buffering and deceleration, protecting the motor and personnel safety, and reducing equipment failure.

[0079] Step 3: When a person or object is detected to be trapped, the pressure sensor and behavior sensor trigger signals simultaneously, and the control center starts the emergency procedure: the main control motor 10 stops rotating, and at the same time drives the electric push rod 13 to drive the execution unit 42 to pull the moving rack 423 to drive the execution rod 420 to deflect, so that the movable frame 41 retracts to increase the gap and help to get out of trouble quickly; in response to the risk of pedestrians approaching at high speed, the protective curtain 62 is deployed at the same time to avoid glass impact injury.

[0080] Step 4: After the equipment has been running for a long time, regular maintenance is required. The windproof brush can be cleaned or replaced directly. The anti-pinch component 4 can be removed by pressing the snap-fit ​​block 32 with the help of the quick-release structure. The anti-pinch component 4 can be removed by plugging and unplugging. No complicated tools are required, which reduces maintenance costs. After inspection and replacement, reverse the assembly and adjust the parameters to restore the normal operation of the equipment.

[0081] The embodiments described herein are preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, all equivalent changes made in accordance with the structure, shape, and principle of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A smart sensing anti-collision protection device for a revolving door, comprising a fixed glass frame (1), a central shaft assembly (2) disposed in the middle of the fixed glass frame (1), and a revolving door (3) mounted on the central shaft assembly (2), characterized in that: The side wall of the revolving door (3) is provided with a removable anti-pinch component (4) for protection, and the central shaft assembly (2) is provided with a buffer assembly (5). The buffer assembly (5) includes a T-shaped block (50) rotatably mounted on the inner wall of the fixed glass frame (1), an adjusting spring (51) mounted on the top of the central shaft assembly (2), a secondary control gear (52) movably mounted on the central shaft assembly (2), and a protrusion (53) integrally provided on the top of the secondary control gear (52). The bottom of the T-shaped block (50) is provided with a serrated groove (54), and the protruding block (53) is provided with serrations (55) corresponding to the serrated groove (54) of the T-shaped block (50). The detachable anti-pinch component (4) includes a fixed frame (40) on the side wall of the revolving door (3) for adjusting the gap between it and the fixed glass frame (1) and a movable frame (41). The fixed frame (40) and the movable frame (41) are slidably distributed relative to each other, and an actuation unit (42) is provided between them.

2. The intelligent sensing anti-collision protection device for revolving doors according to claim 1, characterized in that: The execution unit (42) includes an execution rod (420) for controlling the extension and retraction of the movable frame (41), a limiting sleeve (421) installed on the inner wall of the movable frame (41) and having a strip groove (424), and a rotating gear (422) and a moving rack (423) for controlling the rotation of the execution rod (420). One end of the actuator (420) is hinged to the inner wall of the fixed frame (40), and the other end of the actuator (420) is slidably disposed in the slot (424) of the limiting sleeve (421). The rotating gear (422) is fixed on the side where the actuator (420) is hinged to the fixed frame (40). The moving rack (423) is slidably mounted on the inner wall of the fixed frame (40) and the moving rack (423) meshes with the rotating gear (422).

3. The intelligent sensing anti-collision protection device for revolving doors according to claim 2, characterized in that: A telescopic spring (425) is installed between the movable rack (423) and the fixed frame (40), and the telescopic spring (425) always exerts a pulling force on the movable rack (423).

4. The intelligent sensing anti-collision protection device for revolving doors according to claim 1, characterized in that: The main control motor (10) is also installed in the fixed glass frame (1) at the upper end of the central shaft assembly (2). The output shaft of the main control motor (10) faces downward and is equipped with the main control gear (11). The auxiliary control gear (52) meshes with the main control gear (11).

5. The intelligent sensing anti-collision protection device for revolving doors according to claim 1, characterized in that: The side wall of the auxiliary control gear (52) is provided with a convex frame (12), which is rotatably connected to the auxiliary control gear (52). An electric push rod (13) is also installed in the fixed glass frame (1) at the upper end of the central shaft assembly (2). The output end of the electric push rod (13) is connected to the convex frame (12).

6. The intelligent sensing anti-collision protection device for revolving doors according to claim 1, characterized in that: A metal protective frame (30) is integrally installed on the glass door of the revolving door (3). The metal protective frame (30) is provided with a long strip (31) for the installation of the fixed frame (40). The fixed frame (40) is slidably mounted on the long strip (31) on the metal protective frame (30).

7. The intelligent sensing anti-collision protection device for revolving doors according to claim 6, characterized in that: The two ends of the fixed frame (40) are hinged with torsion springs and have snap-fit ​​blocks (32). The metal protective frame (30) and the long strip (31) are provided with a joint (33) for the snap-fit ​​blocks (32) to be inserted.

8. The intelligent sensing anti-collision protection device for revolving doors according to claim 1, characterized in that: The outer wall of the movable frame (41) is provided with a windproof buffer brush, and a pressure sensor is provided between the movable frame (41) and the fixed frame (40).

9. The intelligent sensing anti-collision protection device for revolving doors according to claim 1, characterized in that: The central shaft assembly (2) is also provided with a collision protection part (6) that is easy to disassemble and install. The collision protection part (6) includes a protective frame (60), a collision protection motor (61), a protective curtain (62), and a protective rod (63). The central shaft assembly (2) has a protective groove for the insertion and installation of the protective frame (60). The protective frame (60) is equipped with an anti-collision motor (61). The protective frame (60) is also rotatably installed with a protective rod (63). The output end of the anti-collision motor (61) is connected to the rotation point of the protective rod (63). The protective curtain (62) is located inside the protective frame (60), and one end of the protective curtain (62) is connected to the protective rod (63) and the other end is connected to the protective frame (60).

10. The intelligent sensing anti-collision protection device for revolving doors according to claim 1, characterized in that: The fixed glass frame (1) is equipped with an electrically connected behavior sensor at the entrance and exit to sense the behavior of pedestrians and to alarm and light up the lights to indicate abnormal behavior. Warning lights and detection sensors are also installed inside the glass of the revolving door (3).

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