Lifting window with infrared anti-pinch

By introducing an infrared sensor and a dual protection structure of floating plate and contact switch into the electric window, the problem of hand pinching during the opening and closing of the electric window is solved, thus improving safety.

CN224351812UActive Publication Date: 2026-06-12GUANGDONG LAOGUANG INTELLIGENT DOORS & WINDOW TECHNOLOGY CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
GUANGDONG LAOGUANG INTELLIGENT DOORS & WINDOW TECHNOLOGY CO LTD
Filing Date
2025-07-18
Publication Date
2026-06-12

AI Technical Summary

Technical Problem

Existing electric window lifts are prone to pinching injuries due to accidental hand placement during opening and closing, resulting in insufficient safety.

Method used

It adopts a dual protection structure of infrared sensor and floating plate and contact switch. The infrared sensor detects the hand position, and the floating plate and contact switch work together to realize the emergency stop protection of the window.

Benefits of technology

This improves the safety of the window, preventing damage to the window and injury to personnel caused by foreign objects clamping it, and achieving double protection from top to bottom.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of lift -and -slide window, and disclose a lift -and -slide window with infrared anti -pinch hand, set up infrared sensor in the lower part of lift -and -slide window body, through the detection of the obstacle of transverse beam seat side can realize the anti -pinch protection of user's hand, set up floating plate and contact switch in the upper part of lift -and -slide window body, through the cooperation of floating plate and contact switch constitute the anti -pinch detection structure of floating plate type, through the contact resistance push makes the floating plate down trigger contact switch can trigger the emergency stop protection of lift -and -slide window body, avoid the window body damage and personnel injury due to foreign matter pinch, the working safety of window body greatly improves with up -and -down double protection, through the setting of many sections can the upper area of longer lift -and -slide window body is covered completely, and the floating plate realizes the floating limit of the floating plate after installation through the joint cooperation of sliding guide block and spacing guide groove and the upper shift of thrust spring resistance push, and the structure is without bolt setting and only through the buckling of down pressure can complete the connection installation of floating plate, and the installation is convenient.
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Description

Technical Field

[0001] This utility model relates to the field of lifting window technology, specifically a lifting window with infrared anti-pinch function. Background Technology

[0002] Windows are an important component of buildings, serving many crucial functions such as lighting, ventilation, insulation, soundproofing, and burglar protection. Properly opening and closing windows helps with indoor air circulation, improves indoor air quality, enhances the living environment, and benefits human health. Electric lift windows are a type of window that uses electric components to open, close, and raise / lower. They require no manual operation and, with the addition of sensors, can achieve intelligent sensing and opening / closing, making them widely used in residential buildings.

[0003] Because the lifting window is driven by electric components, the window body is subjected to a large traction force during the opening and closing process, and there is a certain gap between the moving part and the fixed part of the window body. If the user accidentally places their hand on it, it can easily cause pressure injury to their hand. Although there are protective measures, its working safety is still insufficient. Therefore, a lifting window with infrared anti-pinch function is proposed. Utility Model Content

[0004] The purpose of this invention is to provide a lift window with infrared anti-pinch function to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a lifting window with infrared anti-pinch function, comprising a window body mechanism and a protective mechanism. The window body mechanism includes a mounting frame, a fixed window body, a lifting window body, and a drive motor. The fixed window body is fixedly installed on the lower middle part of the mounting frame, and the lifting window body is movably installed on the middle part of the mounting frame by the drive motor.

[0006] The protective mechanism includes an infrared sensor, a floating plate, a thrust spring, and a contact switch. The infrared sensor is installed on the inner side of the middle of the mounting frame. Multiple floating plates are provided. Several floating plates are equidistantly floating and installed on the upper part of the lifting window body by being pushed and engaged by the thrust spring and the slot block. The contact switches are equidistantly installed on the upper part of the lifting window body.

[0007] Preferably, a sliding guide groove is provided in the middle of the mounting frame, and the edge of the lifting window is slidably fitted into the inner side of the sliding guide groove.

[0008] Preferably, the drive motor is fixedly installed on the top center of the mounting frame, and drive pulleys are installed on both sides of the drive motor shaft and on the upper part of the shaft column on both sides of the mounting frame. A transmission toothed belt is installed on the upper part of the two sets of drive pulleys on each side.

[0009] Preferably, drive side seats are fixedly installed on both sides of the above-mentioned lifting window body, and drive connecting blocks are fixed in the middle of the transmission toothed belt. The drive side seats and drive connecting blocks are fixedly installed by bolts.

[0010] Preferably, a transverse beam is fixedly installed across the middle of the mounting frame, and the infrared sensors are arranged in pairs. The two sets of infrared sensors are respectively embedded in the inner side of the holes provided on the two inner sides of the mounting frame, and the infrared sensors and the transverse beam are arranged in a vertically parallel manner.

[0011] Preferably, the upper part of the above-mentioned lifting window body is provided with floating plate mounting grooves at equal intervals, the floating plate is movably fitted and installed inside the floating plate mounting groove, the middle of the floating plate mounting groove is provided with a mounting hole, and the contact switch is fixedly fitted and installed inside the mounting hole.

[0012] Preferably, the floating plate mounting groove has a limiting guide groove on both sides inside. The upper part of the limiting guide groove is provided with an interlocking guide groove. The floating plate has a sliding guide block fixed on both ends. During installation, the sliding guide block is pushed from the top through the interlocking guide groove and then interlocked with the limiting guide groove. The sliding guide block has a deformation groove on both sides.

[0013] Preferably, a pressing protrusion is fixed to the lower center of the floating plate. When it moves downward, the pressing protrusion contacts and presses against the upper contact head of the contact switch. The floating plate is fixed with a spring support. The thrust spring is fixedly installed at the lower part of the spring support. The lower part of the thrust spring abuts against the bottom surface of the floating plate mounting groove. A guide post is fixedly installed at the bottom surface of the floating plate mounting groove. The upper end of the guide post is movably connected to the insertion hole provided in the middle of the spring support.

[0014] Compared with the prior art, the present invention, by adopting the above technical solution, has the following technical effects:

[0015] 1. This lifting window adopts a double-sided sensor-based protective structure. An infrared sensor is installed at the bottom of the lifting window body. By detecting obstacles on the side of the horizontal beam seat, it can realize anti-pinch protection for the user's hands. A floating plate and a contact switch are installed at the top of the lifting window body. The floating plate and the contact switch work together to form a floating plate-type anti-pinch detection structure. When there is a foreign object in the closing gap at the top of the lifting window body, the floating plate moves down by contacting and pushing, triggering the contact switch to trigger the emergency stop protection of the lifting window body, avoiding damage to the window body and injury to personnel caused by foreign object pinching. The double protection at the top and bottom greatly improves the working safety of the window body.

[0016] The floating plate adopts a segmented structure, which can fully cover the upper area of ​​a long lifting window through multiple segments. The floating plate is installed and limited by the interlocking of guide blocks. The floating plate is limited by the interlocking of sliding guide blocks and limiting guide grooves, and the upward movement of the thrust spring. There are no bolts in the structure and the floating plate can be connected and installed by pressing down. The installation is convenient. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the overall working and installation structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the lifting window drive installation structure of this utility model;

[0020] Figure 3 For the present utility model Figure 1 Schematic diagram of the structure of region A in the middle;

[0021] Figure 4 This is a schematic diagram of the working installation structure of the floating plate of this utility model;

[0022] Figure 5 For the present utility model Figure 4 Schematic diagram of the structure of region B in the middle;

[0023] Figure 6 For the present utility model Figure 4 Schematic diagram of the structure of region C in the middle;

[0024] Figure 7 This is a schematic diagram of the cross-sectional structure of the floating plate of this utility model.

[0025] Explanation of reference numerals in the attached diagram: 1. Mounting frame; 2. Fixed window; 3. Lifting window; 4. Drive motor; 5. Drive pulley; 6. Transmission toothed belt; 7. Infrared sensor; 8. Floating plate; 9. Thrust spring; 10. Contact switch; 11. Horizontal beam seat; 12. Floating plate mounting groove; 13. Limiting guide groove; 14. Sliding guide block; 15. Fitting guide groove; 16. Spring support; 17. Guide column; 18. Pressing protrusion. Detailed Implementation

[0026] 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.

[0027] It should be noted that the structures, proportions, sizes, etc., shown in the accompanying drawings of this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the conditions under which this application can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size should still fall within the scope of the technical content disclosed in this application, provided that they do not affect the effects and purposes that this application can produce.

[0028] Example

[0029] Please see Figure 1-7 This utility model provides a technical solution: a lifting window with infrared anti-pinch function, including a window body mechanism and a protective mechanism. The window body mechanism includes a mounting frame 1, a fixed window body 2, a lifting window body 3, and a drive motor 4, as shown in the attached figure. Figure 1 As shown, the fixed window 2 is fixedly installed on the lower middle part of the mounting frame 1 as a fixed window base structure, and the lifting window 3 is driven to move and install in the middle of the mounting frame 1 by the drive motor 4. Specifically, see attached... Figure 2 As shown, to facilitate the sliding installation of the lifting window 3, a sliding guide groove is provided in the middle of the mounting frame 1. The edge of the lifting window 3 is slidably fitted into the inner side of the sliding guide groove. The drive motor 4 is fixedly installed in the middle of the top side of the mounting frame 1 for driving the lifting window 3. The drive motor 4 works in conjunction with a dual-axis reducer. To achieve drive transmission, drive pulleys 5 are installed on both sides of the shaft end of the drive motor 4 and on the upper part of the shaft column on both sides of the mounting frame 1. There are two sets of drive pulleys 5 on each side. A transmission toothed belt 6 is installed on the upper part. In order to realize the traction drive connection of the lifting window 3, drive side seats are fixedly installed on both sides of the lifting window 3. A drive connecting block is fixed in the middle of the transmission toothed belt 6. The drive side seats and the drive connecting block are fixedly installed by bolts, which can realize the vertical displacement drive of the lifting window 3. This device uses intelligent electronic control to realize the working control of the window. Specifically, the central control module used in this device can be the existing central control module with model EMC24-001-50.

[0030] The protective mechanism is used for the protection of the window during operation. The mechanism includes an infrared sensor 7, a floating plate 8, a thrust spring 9, and a contact switch 10. The infrared sensor 7 is a conventional infrared photoelectric sensor, and the infrared sensors 7 are installed in pairs, as shown in the attached diagram. Figure 7 As shown, two sets of infrared sensors 7 are respectively embedded in the holes provided on the two inner sides of the mounting frame 1. A transverse beam 11 is fixedly installed in the middle of the mounting frame 1 in a horizontal shape. The infrared sensors 7 and the transverse beam 11 are distributed and installed in parallel vertically. The infrared sensors 7 are set at the lower part of the lifting window 3. By detecting obstacles on the side of the transverse beam 11, the user's hand can be protected from being pinched.

[0031] As attached Figure 4 As shown, three floating plates 8 are provided. These three floating plates 8 are equidistantly mounted on the upper part of the lifting window body 3, pushed and engaged by thrust springs 9 and locking with slot blocks. Specifically, to facilitate the connection and installation of the floating plates 8, floating plate mounting slots 12 are evenly spaced and equidistantly provided on the upper part of the lifting window body 3. The floating plates 8 are movably fitted into the inner side of the floating plate mounting slots 12. The contact switch 10 is a button-type pressure sensor as in the prior art. The contact switch 10 is equidistantly mounted on the upper part of the lifting window body 3. To facilitate the connection and installation of the contact switch 10, a mounting hole is provided in the center of the floating plate mounting slot 12. The contact switch 10 is fixedly fitted into the inner side of the mounting hole. To achieve pressure-activated operation, as shown in the attached diagram... Figure 7 As shown, a pressing protrusion 18 is fixed in the middle of the lower side of the floating plate 8. When it moves down, the pressing protrusion 18 contacts and presses against the upper contact head of the contact switch 10. The floating plate 8 and the contact switch 10 are set in the upper part of the lifting window 3. The floating plate 8 and the contact switch 10 cooperate to form a floating plate-type anti-pinch detection structure. When there is a foreign object in the closing gap in the upper part of the lifting window 3, the floating plate 8 moves down by contacting and pushing, triggering the contact switch 10 to trigger the emergency stop protection of the lifting window 3, avoiding damage to the window and injury to personnel caused by foreign object pinching. The double protection at the top and bottom greatly improves the working safety of the window.

[0032] As attached Figure 6 As shown, to facilitate the snap-fit ​​installation of the floating plate 8, limiting guide grooves 13 are provided on both sides of the interior of the floating plate mounting groove 12. To facilitate the push-fitting, a fitting guide groove 15 is provided on the upper part of the limiting guide groove 13. Sliding guide blocks 14 are fixed on both ends of the floating plate 8. During installation, the sliding guide blocks 14 are pushed from the top through the fitting guide groove 15 and then fitted into the limiting guide groove 13. The sliding guide blocks 14 and the fitting guide groove 15 are fitted and fitted through the pushing deformation. The floating plate 8 is installed and limited by the fitting of the guide blocks. The floating limit of the installed floating plate 8 is achieved by the sliding guide blocks 14 and the limiting guide groove 13, combined with the upward movement and pushing of the thrust spring 9. There are no bolts in the structure, and the connection and installation of the floating plate 8 can be completed by pressing down. The installation is convenient. Figure 5 As shown, in order to facilitate the inward deformation of the sliding guide block 14, deformation grooves penetrating the edge of the floating plate 8 are provided on both sides of the sliding guide block 14.

[0033] For easy connection and installation of the thrust spring 9, see attached... Figure 7 As shown, a spring support 16 is fixed to the floating plate 8, and a thrust spring 9 is fixedly installed on the lower part of the spring support 16. The lower part of the thrust spring 9 is installed in contact with the bottom surface of the floating plate mounting groove 12. In order to improve the floating displacement stability of the floating plate 8, a guide post 17 is fixedly installed on the bottom surface of the floating plate mounting groove 12. The upper end of the guide post 17 is movably connected to the insertion hole provided in the middle of the spring support 16. The floating displacement stability of the floating plate 8 can be improved by the guiding support of the guide post 17.

[0034] Working principle or structural principle: When the window is opened or closed, the drive motor 4 drives the drive pulleys 5 on both sides to drive the transmission toothed belt 6 to work synchronously. The connecting block on the upper part of the transmission toothed belt 6 drives the lifting window 3 to slide vertically. During the process of the window moving down and opening, the infrared sensors 7 set on both sides of the middle of the mounting frame 1 detect foreign objects in the upper area of ​​the horizontal beam 11 in real time. When the sensor signal is triggered by the foreign object, the drive motor 4 stops working, realizing the anti-pinch protection for the user's hand. When the foreign object is removed, the window opening command is restarted to complete the downward movement and opening of the lifting window 3.

[0035] During the window closing process, the motor 4 drives the lifting window 3 to slowly move upwards upon receiving the window closing signal. Similarly, during the upward movement, the infrared sensor 7 can detect foreign objects in the upper area of ​​the horizontal beam seat 11 in real time, realizing anti-pinch protection on the lower side of the lifting window 3. At the same time, the floating plate 8 on the upper part of the lifting window 3 is pushed upwards by the thrust spring 9. When a foreign object comes into contact with and presses against the floating plate 8, the pressed floating plate 8 moves downwards and triggers the contact switch 10 by pressing down the contact protrusion 18, triggering the upward emergency stop protection of the lifting window 3 to avoid damage to the window and injury to personnel caused by foreign object pinching. After the foreign object is removed and the floating plate 8 moves upwards and resets, the upward closing operation of the lifting window 3 is completed by restarting the window closing command.

[0036] In summary, this lifting window adopts a double-sided sensor-based protective structure. An infrared sensor 7 is installed at the lower part of the lifting window body 3. By detecting obstacles on the side of the horizontal beam seat 11, it can prevent the user's hand from being pinched. A floating plate 8 and a contact switch 10 are installed at the upper part of the lifting window body 3. The floating plate 8 and the contact switch 10 work together to form a floating plate-type anti-pinch detection structure. When a foreign object is present in the closing gap at the upper part of the lifting window body 3, the floating plate 8 moves downward by contacting and pushing, triggering the contact switch 10 to activate the emergency stop protection of the lifting window body 3, preventing pinching due to foreign objects. The double protection from top and bottom greatly improves the safety of the window, preventing damage to the window and injury to personnel caused by clamping. The floating plate 8 adopts a segmented structure, which can fully cover the upper area of ​​the long lifting window 3 through multiple segments. The floating plate 8 is installed and limited by the interlocking of guide blocks. The floating plate 8 is limited by the interlocking of sliding guide block 14 and limit guide groove 13, and the upward movement of the thrust spring 9. The floating plate 8 is limited by the upward movement of the thrust spring 9. There are no bolts in the structure and the connection and installation of the floating plate 8 can be completed by pressing down. The installation is convenient.

[0037] Those skilled in the art will understand that the features described in the various embodiments and / or claims of this utility model can be combined or combined in various ways, even if such combinations or combinations are not explicitly described in this utility model. In particular, the features described in the various embodiments and / or claims of this utility model can be combined or combined in various ways without departing from the spirit and teachings of this utility model. All such combinations and / or combinations fall within the scope of this utility model.

Claims

1. A lift window with infrared anti-pinch function, comprising a window mechanism and a protective mechanism, characterized in that, The window mechanism includes a mounting frame (1), a fixed window (2), a lifting window (3), and a drive motor (4). The fixed window (2) is fixedly installed on the lower middle part of the mounting frame (1), and the lifting window (3) is driven to move and install in the middle part of the mounting frame (1) by the drive motor (4). The protective mechanism includes an infrared sensor (7), a floating plate (8), a thrust spring (9), and a contact switch (10). The infrared sensor (7) is installed on the inner side of the middle part of the mounting frame (1). There are multiple floating plates (8). Several floating plates (8) are installed on the upper part of the lifting window (3) in an equidistant manner by pushing against the mating slot block through the thrust spring (9). The contact switch (10) is installed on the upper part of the lifting window (3) in an equidistant manner.

2. A lifting window with infrared anti-pinch function according to claim 1, characterized in that, The mounting frame (1) is provided with a sliding guide groove in the middle, and the edge of the lifting window (3) is slidably fitted into the inner side of the sliding guide groove.

3. A lift window with infrared anti-pinch function according to claim 2, characterized in that, The drive motor (4) is fixedly installed on the top side of the mounting frame (1). Both sides of the drive motor (4) and the upper part of the shaft column on both sides of the mounting frame (1) are equipped with drive pulleys (5). The upper part of the two sets of drive pulleys (5) on each side is equipped with a transmission toothed belt (6).

4. A lifting window with infrared anti-pinch function according to claim 3, characterized in that, Both sides of the lifting window (3) are fixedly equipped with drive side seats, and the middle of the transmission toothed belt (6) is fixed with a drive connecting block. The drive side seats and the drive connecting block are fixedly installed by bolts.

5. A lift window with infrared anti-pinch function according to claim 1, characterized in that, The middle part of the mounting frame (1) is fixedly mounted with a transverse beam seat (11). The infrared sensors (7) are arranged in pairs. The two sets of infrared sensors (7) are respectively embedded in the inner side of the holes provided on the two inner sides of the mounting frame (1). The infrared sensors (7) and the transverse beam seat (11) are arranged in a vertically parallel manner.

6. A lift window with infrared anti-pinch function according to claim 5, characterized in that, The upper part of the lifting window (3) is evenly provided with floating plate mounting grooves (12) at equal intervals. The floating plate (8) is movably fitted and installed inside the floating plate mounting groove (12). The middle part of the floating plate mounting groove (12) is provided with a mounting round hole. The contact switch (10) is fixedly fitted and installed inside the mounting round hole.

7. A lift window with infrared anti-pinch function according to claim 6, characterized in that, The floating plate mounting groove (12) has a limiting guide groove (13) on both sides inside. The upper part of the limiting guide groove (13) is provided with a fitting guide groove (15). The floating plate (8) has a sliding guide block (14) fixed on both ends. During installation, the sliding guide block (14) is pushed from the upper side through the fitting guide groove (15) and then fitted and snapped into the limiting guide groove (13). The sliding guide block (14) has a deformation groove on both sides.

8. A lift window with infrared anti-pinch function according to claim 7, characterized in that, A pressing protrusion (18) is fixed to the lower middle part of the floating plate (8). When it moves down, the pressing protrusion (18) contacts and presses against the upper contact head of the contact switch (10). A spring support (16) is fixed to the floating plate (8). A thrust spring (9) is fixedly installed on the lower part of the spring support (16). The lower part of the thrust spring (9) is in contact with the bottom surface of the floating plate mounting groove (12). A guide post (17) is fixedly installed on the bottom surface of the floating plate mounting groove (12). The upper end of the guide post (17) is movably connected to the insertion hole provided in the middle of the spring support (16).