Glass induction door

CN224785572UActive Publication Date: 2026-09-22HUBEI LANRUI UNITED CONSTR TECH CO LTD
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Patent Information

Application Number
CN202522279844.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-10-28
Publication Date
2026-09-22
Estimated Expiration
2035-10-28

AI Technical Summary

Technical Problem

[0003]现有的感应门在活动门的限位控制方面存在一定的不足,以常见的推拉式感应门为例,多数仅依靠简单的机械挡块来限制活动门的移动位置,然而,当遇到特殊情况,如人员或物体在门移动路径上意外停留、感应门控制系统出现短暂故障时,活动门无法根据实时状况精准调整限位,容易导致活动门与障碍物发生剧烈碰撞,这种碰撞不仅会对感应门自身结构造成损坏,增加维修成本和停机时间,还可能对人员安全构成威胁,影响感应门的正常使用和安全性

Benefits of technology

[0016]1、本申请通过动态限位装置的设置,在正常状态下,推力弹簧推动移动板使限位块伸出,对活动门进行限位,确保其按设定范围移动,当遇到特殊情况,如控制系统短暂故障或门前有意外障碍时,第一电磁铁和第二电磁铁通电相互吸引,带动限位块回缩,动态调整限位状态,避免活动门与障碍物剧烈碰撞,提高了感应门的安全性和可靠性,保障了人员安全和设备正常使用。

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Abstract

The utility model belongs to glass induction door technical field discloses a kind of glass induction door, including door frame, movable door, dynamic limiting device and fixed door, the upper end of the door frame is equipped with sliding slot, the movable door is slidably installed in the sliding slot, the fixed door is fixedly installed in the both sides inside the door frame, the dynamic limiting device is installed between the movable door and door frame, for the movement of movable door is positioned control, the dynamic limiting device includes fixed frame, the fixed frame is installed on door frame, slidingly connected with moving plate in the fixed frame, first electromagnet is fixedly connected in the fixed frame inner wall, the side of the moving plate is fixedly connected with second electromagnet, the other side of the moving plate is fixedly connected with limit block. The utility model can dynamically adjust limiting state, avoid movable door and obstacle violent collision, improve the safety and reliability of induction door, guarantee personnel safety and equipment normal use.
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Description

Technical Field

[0001] This utility model belongs to the technical field of glass sensor doors, and specifically relates to a glass sensor door. Background Technology

[0002] In commercial spaces, public buildings, and some high-end residences, automatic doors are widely used due to their automation and convenience. There are many types of automatic doors available, the most common being swing doors and sliding doors. These doors are typically equipped with various sensors, such as infrared sensors and microwave sensors, to detect the approach of people, thereby automatically opening and closing, facilitating entry and exit, and improving the modernization level and traffic efficiency of buildings.

[0003] Existing automatic doors have certain shortcomings in terms of limit control of the moving door. Taking the common sliding automatic door as an example, most of them rely solely on simple mechanical blocks to limit the movement of the moving door. However, when encountering special circumstances, such as when a person or object accidentally stops in the door's movement path, or when the automatic door control system experiences a brief malfunction, the moving door cannot accurately adjust the limit according to the real-time situation, which can easily lead to a violent collision between the moving door and the obstacle. Such collisions not only damage the automatic door's own structure, increasing maintenance costs and downtime, but may also pose a threat to personnel safety, affecting the normal use and safety of the automatic door. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a glass sensor door that can dynamically adjust the limit state to avoid violent collisions between the movable door and obstacles, thereby improving the safety and reliability of the sensor door and ensuring the safety of personnel and the normal use of equipment.

[0005] The technical solution of this utility model is as follows: a glass sensor door, including a door frame, a movable door, a dynamic limiting device and a fixed door. The upper end of the door frame is provided with a sliding groove, the movable door is slidably installed in the sliding groove, the fixed door is fixedly installed on both sides inside the door frame, and the dynamic limiting device is installed between the movable door and the door frame for limiting and controlling the movement of the movable door.

[0006] The dynamic limiting device includes a fixed frame, which is installed on a door frame. A movable plate is slidably connected inside the fixed frame. A first electromagnet is fixedly connected to the inner wall of the fixed frame. A second electromagnet is fixedly connected to one side of the movable plate. A limiting block is fixedly connected to the other side of the movable plate. The limiting block passes through the fixed frame and extends to the outside of the fixed frame. A thrust spring is provided between the side of the movable plate near the second electromagnet and the inner wall of the fixed frame.

[0007] Preferably, a guide rod is fixedly connected inside the fixed frame, and a through guide hole is provided on the movable plate. The outer surface of the guide rod is slidably connected to the inner wall of the guide hole.

[0008] Preferably, the thrust spring is sleeved on the guide rod, with one end of the thrust spring abutting against the fixed frame and the other end of the thrust spring abutting against the movable plate.

[0009] Preferably, the first electromagnet and the second electromagnet are arranged opposite to each other and attract each other when energized, so as to drive the limit block to retract and release the limit on the movable door.

[0010] Preferably, the movable door is equipped with a flexible piezoelectric sensor array to sense human contact and generate signals.

[0011] Preferably, the glass sensor door further includes a millimeter-wave radar, which is installed on the door frame to detect moving objects in front of the door and generate signals.

[0012] Preferably, the glass sensor door further includes an infrared light curtain, which is installed on both sides of the door frame to detect whether there are obstacles in front of the door and generate a signal.

[0013] Preferably, the flexible piezoelectric sensor array, millimeter-wave radar, and infrared light curtain are all connected to the control system, and the control system controls the movement of the dynamic limiting device and the movable door according to the received signals.

[0014] Preferably, the movable door is made of glass, and a buffer device is provided between the movable door and the slide rail to reduce the impact force when the movable door moves.

[0015] One or more technical solutions provided in the embodiments of this application have at least the following technical effects or advantages:

[0016] 1. This application, through the setting of a dynamic limit device, under normal conditions, pushes the moving plate with a thrust spring to extend the limit block, thereby limiting the movement of the movable door and ensuring that it moves within a set range. When encountering special circumstances, such as a brief failure of the control system or an unexpected obstacle in front of the door, the first electromagnet and the second electromagnet are energized and attract each other, causing the limit block to retract, dynamically adjusting the limit state, avoiding violent collisions between the movable door and obstacles, improving the safety and reliability of the sensor door, and ensuring the safety of personnel and the normal use of the equipment.

[0017] 2. In this application, the flexible piezoelectric sensor array on the movable door, the millimeter-wave radar on the door frame, and the infrared light curtain are designed to allow the flexible piezoelectric sensor array to sense human contact, the millimeter-wave radar to detect moving objects in front of the door, and the infrared light curtain to detect obstacles in front of the door. These sensors transmit signals to the control system, which then precisely controls the movement of the dynamic limit device and the movable door, enabling the sensor door to better adapt to different environments and scenarios and respond promptly to various situations. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a partial structural diagram of the present invention;

[0021] Figure 3 This is a partial structural diagram of the dynamic limiting device in this utility model;

[0022] Figure 4 This is a top view of a partial structure of the dynamic limiting device of this utility model.

[0023] In the attached image:

[0024] 1. Door frame; 2. Slide track; 3. Movable door; 4. Dynamic limit device; 41. Fixed frame; 42. Movable plate; 43. First electromagnet; 44. Second electromagnet; 45. Limit block; 46. Thrust spring; 47. Guide rod; 5. Fixed door. Detailed Implementation

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

[0026] Please see Figure 1-4A glass sensor door includes a door frame 1, a movable door 3, a dynamic limiting device 4, and a fixed door 5. The upper end of the door frame 1 is provided with a slide groove 2, the movable door 3 is slidably installed in the slide groove 2, the fixed door 5 is fixedly installed on both sides inside the door frame 1, and the dynamic limiting device 4 is installed between the movable door 3 and the door frame 1 to limit the movement of the movable door 3.

[0027] The dynamic limiting device 4 includes a fixed frame 41, which is installed on the door frame 1. A movable plate 42 is slidably connected inside the fixed frame 41. A first electromagnet 43 is fixedly connected to the inner wall of the fixed frame 41. A second electromagnet 44 is fixedly connected to one side of the movable plate 42. A limiting block 45 is fixedly connected to the other side of the movable plate 42. The limiting block 45 passes through the fixed frame 41 and extends to the outside of the fixed frame 41. A thrust spring 46 is provided between the side of the movable plate 42 near the second electromagnet 44 and the inner wall of the fixed frame 41. With the dynamic limiting device 4 in place, under normal conditions, the thrust spring 46 pushes the moving plate 42 to extend the limiting block 45, which limits the movement of the movable door 3 and ensures that it moves within the set range. In special circumstances, such as a brief failure of the control system or an unexpected obstacle in front of the door, the first electromagnet 43 and the second electromagnet 44 are energized and attract each other, causing the limiting block 45 to retract and dynamically adjust the limiting state. This prevents the movable door 3 from colliding violently with the obstacle, improves the safety and reliability of the sensor door, and ensures the safety of personnel and the normal use of the equipment.

[0028] A guide rod 47 is fixedly connected inside the fixed frame 41, and a through guide hole is provided on the movable plate 42. The outer surface of the guide rod 47 is slidably connected to the inner wall of the guide hole. During the operation of the dynamic limiting device 4, the movable plate 42 needs to slide within the fixed frame 41 to drive the limiting block 45 to extend and retract. The cooperation between the guide rod 47 and the guide hole ensures that the movable plate 42 always moves accurately along the predetermined direction, avoiding deviation or shaking, and ensuring the accuracy of the extension and retraction of the limiting block 45, thereby improving the working reliability of the dynamic limiting device 4.

[0029] A thrust spring 46 is sleeved on a guide rod 47. One end of the thrust spring 46 abuts against the fixed frame 41, and the other end abuts against the movable plate 42. The thrust spring 46 provides a pushing force to the movable plate 42 to realize the extension and limiting function of the limiting block 45. The guide rod 47 plays a role in positioning and guiding the thrust spring 46.

[0030] The first electromagnet 43 and the second electromagnet 44 are arranged opposite each other and attract each other when energized, which is used to drive the limit block 45 to retract and release the restriction on the movable door 3. When it is necessary to release the restriction on the movable door 3 in special circumstances, simply energize the first electromagnet 43 and the second electromagnet 44, and use magnetic attraction to drive the moving plate 42 to retract the limit block 45, so as to quickly release the restriction.

[0031] The movable door 3 is equipped with a flexible piezoelectric sensor array to sense human contact and generate signals. The glass sensor door also includes a millimeter-wave radar mounted on the door frame 1 to detect moving objects in front of the door and generate signals. An infrared light curtain is also included, mounted on both sides of the door frame 1, to detect obstacles in front of the door and generate signals. The flexible piezoelectric sensor array, millimeter-wave radar, and infrared light curtain are all connected to the control system. The control system controls the movement of the dynamic limit device 4 and the movable door 3 based on the received signals. The flexible piezoelectric sensor array senses human contact, the millimeter-wave radar detects moving objects in front of the door, and the infrared light curtain detects obstacles. These signals are transmitted to the control system, which then precisely controls the movement of the dynamic limit device 4 and the movable door 3, enabling the sensor door to better adapt to different environments and scenarios and respond promptly to various situations.

[0032] The movable door 3 is made of glass, and a buffer device is provided between the movable door 3 and the slide rail 2 to reduce the impact force when the movable door 3 moves.

[0033] When the glass sensor door is in operation, a flexible piezoelectric sensor array, millimeter-wave radar, and infrared light curtain continuously sense the environmental information around the glass sensor door. The flexible piezoelectric sensor array senses human contact, the millimeter-wave radar detects moving objects in front of the door, and the infrared light curtain detects obstacles in front of the door, and transmits the signals to the control system.

[0034] Under normal conditions, in the dynamic limiting device 4, the thrust spring 46 pushes the moving plate 42, causing the limiting block 45 to extend and limit the movable door 3, ensuring that it slides along the slide groove 2 within the set range.

[0035] When a brief malfunction occurs in the control system or there is an unexpected obstacle in front of the door, the control system energizes the first electromagnet 43 and the second electromagnet 44. The first electromagnet 43 and the second electromagnet 44 attract each other, causing the limit block 45 to retract, releasing the limit and preventing the movable door 3 from colliding violently with the obstacle.

[0036] It should be noted that the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0037] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A glass sensor door, comprising a door frame (1), a movable door (3), a dynamic limiting device (4), and a fixed door (5), characterized in that, The upper end of the door frame (1) is provided with a sliding groove (2), the movable door (3) is slidably installed in the sliding groove (2), the fixed door (5) is fixedly installed on both sides inside the door frame (1), and the dynamic limiting device (4) is installed between the movable door (3) and the door frame (1) for limiting the movement of the movable door (3). The dynamic limiting device (4) includes a fixed frame (41), which is installed on the door frame (1). A movable plate (42) is slidably connected inside the fixed frame (41). A first electromagnet (43) is fixedly connected to the inner wall of the fixed frame (41). A second electromagnet (44) is fixedly connected to one side of the movable plate (42). A limiting block (45) is fixedly connected to the other side of the movable plate (42). The limiting block (45) passes through the fixed frame (41) and extends to the outside of the fixed frame (41). A thrust spring (46) is provided between the side of the movable plate (42) near the second electromagnet (44) and the inner wall of the fixed frame (41).

2. The glass sensor door as described in claim 1, characterized in that, The fixed frame (41) is fixedly connected to a guide rod (47), and the movable plate (42) is provided with a through guide hole. The outer surface of the guide rod (47) is slidably connected to the inner wall of the guide hole.

3. The glass sensor door as described in claim 2, characterized in that, The thrust spring (46) is sleeved on the guide rod (47), one end of the thrust spring (46) abuts against the fixed frame (41), and the other end of the thrust spring (46) abuts against the moving plate (42).

4. The glass sensor door as described in claim 1, characterized in that, The first electromagnet (43) and the second electromagnet (44) are arranged opposite to each other and attract each other when energized, which is used to drive the limit block (45) to retract and release the limit on the movable door (3).

5. The glass sensor door as described in claim 1, characterized in that, The movable door (3) is equipped with a flexible piezoelectric sensor array, which is used to sense human contact and generate signals.

6. The glass sensor door as described in claim 5, characterized in that, The glass sensor door also includes a millimeter-wave radar, which is installed on the door frame (1) to detect moving objects in front of the door and generate signals.

7. The glass sensor door as described in claim 6, characterized in that, The glass sensor door also includes an infrared light curtain, which is installed on both sides of the door frame (1) to detect whether there are obstacles in front of the door and generate a signal.

8. The glass sensor door as described in claim 7, characterized in that, The flexible piezoelectric sensor array, millimeter-wave radar, and infrared light curtain are all connected to the control system. The control system controls the movement of the dynamic limiting device (4) and the movable door (3) according to the received signals.