Safety protection device of intelligent revolving door power equipment

By introducing a combination of pressure sensors and buffer structures into the revolving door, the problem of rapid braking of the revolving door under sudden external force impact is solved, ensuring safety and equipment durability, and facilitating maintenance.

CN224496181UActive Publication Date: 2026-07-14QINGDAO BORUI FUTIAN TECH GRP CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
QINGDAO BORUI FUTIAN TECH GRP CO LTD
Filing Date
2025-07-18
Publication Date
2026-07-14

AI Technical Summary

Technical Problem

When subjected to sudden external impact, the existing revolving door power equipment cannot respond quickly to mechanical anti-pinch devices, resulting in braking delay, which may cause personnel to be pinched or equipment to be damaged, and the buffer structure has insufficient durability.

Method used

It adopts a combination structure of pressure sensor, squeeze plate and sliding plate to quickly trigger braking, and absorbs impact force through the buffer structure of sliding rod and spring. At the same time, the design of the knob, threaded rod and locking block assembly makes it easy to clean and maintain.

Benefits of technology

It enables rapid braking of the revolving door when subjected to external pressure, preventing pinching accidents, extending the service life of the equipment, and improving equipment maintenance efficiency and safety.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224496181U_ABST
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Abstract

The utility model relates to the technical field of rotating door, disclose a kind of safety protection device of intelligent rotating door power equipment, including rotating door body, rotating door body upper surface is fixedly connected with top seat, the motor is fixedly connected in top seat inside, motor output is fixedly connected with speed reducer, the output of speed reducer is fixedly connected with connecting shaft, connecting shaft outer wall is provided with protection assembly, the protection assembly includes rotating door, rotating door is fixedly connected in connecting shaft outer wall, rotating door inner wall is slidably connected with extruded plate. In the utility model, by setting pressure sensor, extruded plate and sliding plate, can be when rotating door is extruded by external force quickly trigger brake mechanism, make motor stop running, effectively prevent pinching accident, improve safety, simultaneously, the buffer structure of sliding rod and spring can absorb impact force, avoid rotating door and damage due to instantaneous pressure too large.
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Description

Technical Field

[0001] This utility model relates to the field of revolving door technology, and in particular to a safety protection device for intelligent revolving door power equipment. Background Technology

[0002] With the rapid development of intelligent buildings, the safety and reliability of revolving doors, as an important passage facility in modern buildings, are receiving increasing attention. Traditional revolving door power equipment may pose a risk of pinching injuries during operation, especially in densely populated areas, necessitating an intelligent safety protection device to enhance their safety capabilities.

[0003] In existing technologies, the safety protection of revolving doors mostly adopts mechanical anti-pinch devices or infrared sensing systems. Mechanical anti-pinch devices typically rely on elastic buffer structures to mitigate impacts, while infrared sensing systems detect obstacles through a light beam and trigger a stop signal. These technical solutions can achieve safety protection to a certain extent, but each has its own limitations.

[0004] However, existing mechanical anti-pinch devices often fail to respond quickly to sudden external impacts, resulting in braking delays that may cause injuries to people or damage to equipment. Furthermore, their buffer structures lack durability and are prone to failure after prolonged use, thus failing to continuously ensure the safe operation of the revolving door. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a safety protection device for intelligent revolving door power equipment, which aims to improve the problem that existing mechanical anti-pinch devices often cannot respond quickly when subjected to sudden external force impact, resulting in braking delay and potentially causing personnel injury or equipment damage.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a safety protection device for a power equipment of an intelligent revolving door, comprising a revolving door body, a top seat fixedly connected to the upper surface of the revolving door body, a motor fixedly connected inside the top seat, a reducer fixedly connected to the output end of the motor, a connecting shaft fixedly connected to the output end of the reducer, and a protective component provided on the outer wall of the connecting shaft;

[0007] The protective assembly includes a rotating door, which is fixedly connected to the outer wall of the connecting shaft. A pressing plate is slidably connected to the inner wall of the rotating door, and a pressure sensor is fixedly connected to the inner wall of the rotating door. A sliding rod is fixedly connected to the outer wall of the rotating door, and a spring is sleeved on the outer wall of the sliding rod. A sliding plate is slidably connected to the inner wall of the rotating door.

[0008] Furthermore, a dustproof plate is provided on the upper surface of the top seat, a connecting plate is fixedly connected to the outer wall of the dustproof plate, a fixing plate is attached to the lower surface of the connecting plate, and a disassembly assembly is provided inside the connecting plate.

[0009] Furthermore, the disassembly and assembly assembly includes a locking block, the outer wall of which is slidably connected to the inner wall of the connecting plate, a guide rod slidably connected to the inner wall of the locking block, a threaded rod threadedly connected inside the locking block, a knob fixedly connected to one end of the threaded rod, and a fixing plate two rotatably connected to the outer wall of the threaded rod.

[0010] Furthermore, the second fixing plate is fixedly connected to the outer wall of the first fixing plate, and the knob is located above the second fixing plate.

[0011] Furthermore, one end of the guide rod is fixedly connected to the upper surface of the first fixing plate, and the other end of the guide rod is fixedly connected to the lower surface of the second fixing plate.

[0012] Furthermore, one end of the spring is fixedly connected to the outer wall of the rotating door, and the other end of the spring is fixedly connected to the outer wall of the sliding plate.

[0013] Furthermore, the sliding plate is attached to the outer wall of the pressure sensor, and the lower surface of the fixing plate is fixedly connected to the upper surface of the top seat.

[0014] Furthermore, the speed reducer is located inside the top mount, and the motor is located inside the top mount.

[0015] This utility model has the following beneficial effects:

[0016] 1. In this utility model, by setting a pressure sensor, a squeezing plate and a sliding plate, the braking mechanism can be quickly triggered when the revolving door is squeezed by external force, so that the motor stops running, effectively preventing pinching accidents and improving safety. At the same time, the buffer structure of the sliding rod and spring can absorb the impact force, prevent the revolving door from being damaged due to excessive instantaneous pressure, extend the service life of the equipment, and ensure the safety of pedestrians.

[0017] 2. In this utility model, quick disassembly and assembly are achieved through the cooperation of knob, threaded rod and locking block, which facilitates cleaning and maintenance and improves equipment maintenance efficiency. The synergistic effect of guide rod and fixing plate ensures stability during disassembly and prevents component misalignment. The fixed connection between the fixed base and the top seat ensures accurate positioning during reinstallation, making the dustproof structure more reliable and easier to operate. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of a safety protection device for an intelligent revolving door power equipment proposed in this utility model;

[0019] Figure 2 This is a schematic diagram of the rotating door section of a safety protection device for an intelligent rotating door power equipment proposed in this utility model;

[0020] Figure 3This is a schematic diagram of the sliding plate part of a safety protection device for an intelligent revolving door power equipment proposed in this utility model;

[0021] Figure 4 This is a schematic diagram of the locking block structure of a safety protection device for an intelligent revolving door power equipment proposed in this utility model;

[0022] Figure 5 for Figure 3 Enlarged view of point A in the image.

[0023] Legend:

[0024] 1. Revolving door body; 2. Top seat; 3. Rotating door; 4. Pressing plate; 5. Sliding plate; 6. Spring; 7. Sliding rod; 8. Connecting shaft; 9. Reducer; 10. Motor; 11. Dustproof plate; 12. Connecting plate; 13. Fixing plate one; 14. Fixing plate two; 15. Knob; 16. Threaded rod; 17. Locking block; 18. Guide rod; 19. Pressure sensor. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Reference Figures 1-3 The present invention provides an embodiment of a safety protection device for a power equipment of an intelligent revolving door, comprising a revolving door body 1, which constitutes the main structure of the entire revolving door and provides personnel passage function. A top seat 2 is fixedly connected to the upper surface of the revolving door body 1 and is fixedly installed on the top of the revolving door to accommodate and support the power and protection device. A motor 10 is fixedly connected inside the top seat 2. A reducer 9 is fixedly connected to the output end of the motor 10, which is a power conversion device that reduces the speed of the motor 10 and increases the output torque. A connecting shaft 8 is fixedly connected to the output end of the reducer 9 to transmit the power of the reducer 9 to the core transmission shaft of the revolving door 3. A protective component is provided on the outer wall of the connecting shaft 8.

[0027] The protective assembly includes a rotating door 3, a movable door body that comes into direct contact with pedestrians, which rotates via a connecting shaft 8. The rotating door 3 is fixedly connected to the outer wall of the connecting shaft 8. A pressing plate 4 is slidably connected to the inner wall of the rotating door 3. A pressure sensor 19 is fixedly connected to the inner wall of the rotating door 3, which is a safety triggering device that detects mechanical pressure and converts it into an electrical signal. A sliding rod 7 is fixedly connected to the outer wall of the rotating door 3, which provides guidance for the sliding plate 5 and ensures accurate movement trajectory. A spring 6 is sleeved on the outer wall of the sliding rod 7 to provide buffering force, absorb impact energy, and help the components reset. The sliding plate 5 is slidably connected to the inner wall of the rotating door 3, which is an intermediate transmission component that transmits the mechanical movement of the pressing plate 4 to the pressure sensor 19.

[0028] Specifically, when the revolving door body 1 is in normal working condition, the revolving door 3 rotates smoothly under the drive of the motor 10 via the reducer 9 and the connecting shaft 8. When the revolving door 3 is subjected to external pressure, the pressing plate 4 slides inward along the inner wall of the revolving door 3, pushing the sliding plate 5 to move synchronously. The movement of the sliding plate 5 causes it to come into contact with the pressure sensor 19 fixedly installed on the inner wall of the revolving door 3. After the pressure sensor 19 detects a pressure signal exceeding the set threshold, the control device receives the signal and immediately cuts off the power to the motor 10, causing the reducer 9 and the connecting shaft 8 to stop rotating, thereby realizing the emergency braking function of the revolving door. During this process, the buffer mechanism composed of the sliding rod 7 and the spring 6 can effectively absorb and disperse the impact energy, preventing the revolving door 3 from being damaged due to excessive instantaneous pressure, thus protecting the integrity of the equipment and ensuring the safety of pedestrians.

[0029] Reference Figure 4 and Figure 5The top surface of the top seat 2 is provided with a dustproof plate 11, which is an outer protective cover to prevent dust from entering the interior of the top seat 2. A connecting plate 12 is fixedly connected to the outer wall of the dustproof plate 11, which is a transition connector connecting the dustproof plate 11 and the fixed plate 13. The lower surface of the connecting plate 12 is attached to the fixed plate 13 and fixed to the top seat 2, providing an installation base for the dustproof components. The connecting plate 12 is provided with a disassembly and assembly component, which includes a locking block 17. The locking block 17 can be moved to lock or release the connecting plate 12 and the fixed plate 13. The outer wall of the locking block 17 is slidably connected to the inner wall of the connecting plate 12. A guide rod 18 is slidably connected to the inner wall of the locking block 17 to provide precise guidance for the movement of the locking block 17 and prevent deflection. A threaded rod 16 is threadedly connected inside the locking block 17 to convert the rotational movement of the knob 15 into the linear movement of the locking block 17. A knob 15 is fixedly connected to one end of the threaded rod 16, providing a manual operation interface for controlling the movement of the locking block 17. A second fixing plate 14 is rotatably connected to the outer wall of the threaded rod 16, which is an auxiliary mounting plate that supports the threaded rod 16 and fixes the guide rod 18. The second fixing plate 14 is fixedly connected to the outer wall of the first fixing plate 13. The knob 15 is located above the second fixing plate 14. One end of the guide rod 18 is fixedly connected to the upper surface of the first fixing plate 13, and the other end of the guide rod 18 is fixedly connected to the lower surface of the second fixing plate 14. One end of the spring 6 is fixedly connected to the outer wall of the rotating door 3, and the other end of the spring 6 is fixedly connected to the outer wall of the sliding plate 5. The sliding plate 5 is attached to the outer wall of the pressure sensor 19. The lower surface of the first fixing plate 13 is fixedly connected to the upper surface of the top seat 2. The reducer 9 is located inside the top seat 2, and the motor 10 is located inside the top seat 2.

[0030] Specifically, the operator can manually rotate the knob 15 installed above the second fixed plate 14. The rotation of the knob 15 drives the threaded rod 16 fixedly connected to it to rotate. The rotational motion of the threaded rod 16 is converted into the linear motion of the locking block 17 through the threaded pair. Under the guidance of the guide rod 18, the locking block 17 slides smoothly along the inner wall of the connecting plate 12 until it is completely out of the slot of the connecting plate 12. At this time, the connection between the connecting plate 12 and the first fixed plate 13 is completely released, and the operator can easily remove the dustproof plate 11 as a whole. During the entire disassembly process, the cooperation between the second fixed plate 14 and the guide rod 18 ensures that the movement trajectory of the locking block 17 is accurate and effectively prevents the parts from being misaligned. The fixed connection between the first fixed plate 13 and the top seat 2 provides a precise positioning reference for subsequent reinstallation, ensuring that the dustproof plate 11 can be accurately reset.

[0031] Working principle: When the intelligent revolving door power equipment is needed, when the rotating door 3 of the revolving door body 1 is squeezed by external force, the squeezing plate 4 slides inward and pushes the sliding plate 5 to move, so that the sliding plate 5 contacts the pressure sensor 19. After the pressure sensor 19 detects the pressure signal, it immediately triggers the safety switch, controls the motor 10 to stop running, thereby stopping the rotation of the reducer 9 and the connecting shaft 8, realizing the emergency braking of the revolving door. At the same time, the cooperation of the sliding rod 7 and the spring 6 can buffer the impact force and prevent the revolving door 3 from being damaged due to excessive instantaneous pressure, effectively protecting pedestrian safety and equipment stability.

[0032] Furthermore, when it is necessary to disassemble the dust cover 11 for cleaning or maintenance, the threaded rod 16 is rotated by rotating the knob 15, causing the locking block 17 to slide along the guide rod 18 and exit from the connecting plate 12. At this time, the fixing between the connecting plate 12 and the first fixing plate 13 is released, and the dust cover 11 can be removed as a whole. The cooperation between the second fixing plate 14 and the guide rod 18 ensures a smooth disassembly process and avoids misalignment of parts. Meanwhile, the first fixing plate 13 remains fixedly connected to the top seat 2 to ensure accurate positioning during subsequent reinstallation.

[0033] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A safety protection device for an intelligent revolving door power equipment, comprising a revolving door body (1), characterized in that: A top seat (2) is fixedly connected to the upper surface of the revolving door body (1). A motor (10) is fixedly connected inside the top seat (2). A reducer (9) is fixedly connected to the output end of the motor (10). A connecting shaft (8) is fixedly connected to the output end of the reducer (9). A protective component is provided on the outer wall of the connecting shaft (8). The protective assembly includes a rotating door (3), which is fixedly connected to the outer wall of the connecting shaft (8). A pressing plate (4) is slidably connected to the inner wall of the rotating door (3). A pressure sensor (19) is fixedly connected to the inner wall of the rotating door (3). A sliding rod (7) is fixedly connected to the outer wall of the rotating door (3). A spring (6) is sleeved on the outer wall of the sliding rod (7). A sliding plate (5) is slidably connected to the inner wall of the rotating door (3).

2. The safety protection device for an intelligent revolving door power equipment according to claim 1, characterized in that: The top seat (2) is provided with a dustproof plate (11) on its upper surface. A connecting plate (12) is fixedly connected to the outer wall of the dustproof plate (11). A fixing plate (13) is attached to the lower surface of the connecting plate (12). A disassembly assembly is provided inside the connecting plate (12).

3. The safety protection device for an intelligent revolving door power equipment according to claim 2, characterized in that: The disassembly and assembly assembly includes a locking block (17), the outer wall of which is slidably connected to the inner wall of the connecting plate (12), a guide rod (18) is slidably connected to the inner wall of the locking block (17), a threaded rod (16) is threadedly connected inside the locking block (17), a knob (15) is fixedly connected to one end of the threaded rod (16), and a fixing plate (14) is rotatably connected to the outer wall of the threaded rod (16).

4. The safety protection device for an intelligent revolving door power equipment according to claim 3, characterized in that: The second fixing plate (14) is fixedly connected to the outer wall of the first fixing plate (13), and the knob (15) is located above the second fixing plate (14).

5. The safety protection device for an intelligent revolving door power equipment according to claim 3, characterized in that: One end of the guide rod (18) is fixedly connected to the upper surface of the first fixing plate (13), and the other end of the guide rod (18) is fixedly connected to the lower surface of the second fixing plate (14).

6. The safety protection device for an intelligent revolving door power equipment according to claim 1, characterized in that: One end of the spring (6) is fixedly connected to the outer wall of the rotating door (3), and the other end of the spring (6) is fixedly connected to the outer wall of the sliding plate (5).

7. The safety protection device for an intelligent revolving door power equipment according to claim 2, characterized in that: The sliding plate (5) is attached to the outer wall of the pressure sensor (19), and the lower surface of the fixing plate (13) is fixedly connected to the upper surface of the top seat (2).

8. The safety protection device for an intelligent revolving door power equipment according to claim 1, characterized in that: The speed reducer (9) is located inside the top seat (2), and the motor (10) is located inside the top seat (2).