Anti-pinch lifting window

By installing an anti-pinch mechanism at the end of the moving window sash of the electric lift window, and utilizing the cooperation of a triggering device and an elastic contact, the problem of pinching hands when the window sash descends is solved, thus improving safety.

CN224515005UActive Publication Date: 2026-07-17DONGGUAN JINMEITAI MOTOR CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
DONGGUAN JINMEITAI MOTOR CO LTD
Filing Date
2025-08-21
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing electric window lifts are prone to trapping hands during descent, posing a safety hazard.

Method used

An anti-pinch mechanism is provided at the end of the moving path of the movable window sash, including a triggering device and an elastic contact. The elastic deformation of the contact triggers the control unit to stop the drive mechanism and prevent the window sash from falling.

Benefits of technology

It effectively prevents fingers from being pinched by window sashes, eliminates safety hazards, and improves safety during use.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224515005U_ABST
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Abstract

This utility model discloses an anti-pinch lifting window, including a window frame, a movable window sash, and a drive mechanism. The window frame has an assembly space, and the movable window sash is movably installed within the assembly space. The drive mechanism drives the movable window sash to move and is connected to a control unit. An anti-pinch mechanism is provided at the end of the moving path of the movable window sash. The anti-pinch mechanism includes a triggering device and an elastically deformable contact. The triggering device is electrically connected to the control unit, and the contact is used to trigger the triggering device by undergoing elastic deformation. When the triggering device is triggered, the control unit controls the drive mechanism to stop operating. This solves the problem of fingers being easily pinched when the movable window sash descends, eliminating safety hazards.
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Description

Technical Field

[0001] This utility model relates to the field of lift-up windows, and in particular to an anti-pinch lift-up window. Background Technology

[0002] As people's living conditions improve, balconies have become a basic feature of ordinary residential buildings. Balconies in ordinary residential buildings serve functions such as lighting and ventilation, drying clothes, noise insulation, and daily leisure. In order to meet people's expectations for balcony functions, most people use lift-up windows for balcony enclosure and windows.

[0003] In recent years, an electric lift window has emerged for balcony enclosure and windows. Its structure mainly includes a window frame and an outer movable window sash set on the window frame, as well as an inner fixed window sash (the inner side refers to the indoor side, and the outer side refers to the outdoor side). Its advantage is that the outer movable window sash can be fully opened, providing a large ventilation area, and therefore it is widely popular. However, during the descent of the outer movable window sash, since there are no protective measures between the lower wall of the window frame and the movable window sash, if a person inside places their hand on the lower wall of the window frame, the outer movable window sash can easily trap their hand when it descends to the bottom, posing a certain safety hazard.

[0004] Therefore, a new technology needs to be developed to solve the above problems. Utility Model Content

[0005] In view of this, the present invention addresses the deficiencies of the existing technology, and its main purpose is to provide an anti-pinch lifting window, which solves the problem of easy hand pinching when the movable window sash is lowered, and eliminates safety hazards.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] An anti-pinch lifting window includes a window frame, a movable window sash, and a drive mechanism. The window frame has an assembly space, the movable window sash is movably installed in the assembly space, the drive mechanism drives the movable window sash to move, and the drive mechanism is connected to a control unit.

[0008] An anti-pinch mechanism is provided at the end of the moving path of the movable window sash. The anti-pinch mechanism includes a triggering device and a contact member capable of elastic deformation. The triggering device is electrically connected to the control unit, and the contact member is used to trigger the triggering device by undergoing elastic deformation. When the triggering device is triggered, the control unit controls the drive mechanism to stop operating.

[0009] As a preferred embodiment, the triggering device is a trigger switch, and multiple trigger switches are provided. The multiple trigger switches are arranged at intervals along the length direction of the contact member, and the multiple trigger switches are electrically connected to the control unit respectively.

[0010] As a preferred embodiment, the anti-pinch mechanism includes a support frame with a mounting position. The triggering device is mounted on the mounting position, and the contact is mounted on the support frame and covers the triggering device. The contact has a contact protrusion extending along the length of the contact at the center of one end facing the triggering device, and the contact protrusion is used to contact the triggering device.

[0011] As a preferred embodiment, the support frame is provided with a positioning groove extending along the length direction of the support frame, the mounting position is formed at the bottom of the positioning groove, one end of the triggering device protrudes from the positioning groove, and the other end of the triggering device extends through the bottom of the positioning groove into the interior of the support frame.

[0012] As a preferred embodiment, a silicone pad is provided in the positioning groove on one side of the triggering device, and the two sides of the silicone pad are respectively constrained by the contact element and the bottom of the positioning groove.

[0013] As a preferred embodiment, the contact member has a first fastening portion protruding on both sides of the end facing the support frame, and the support frame has a second fastening portion protruding on both sides of the end facing the contact member, and the first fastening portion and the second fastening portion fasten together.

[0014] As a preferred embodiment, the window also includes a liftable window sash, both of which are vertically movable and installed within the assembly space. The liftable and movable window sashes are arranged front to back, and the anti-pinch mechanism is provided on the lower and / or upper sidewalls of the window frame.

[0015] As a preferred embodiment, the drive mechanism includes a drive motor, a transmission shaft, and two transmission racks. The control unit controls the drive motor to selectively rotate in both directions. The drive motor drives the transmission shaft to rotate. The left and right ends of the transmission shaft are respectively connected to the two transmission racks via transmission gears. Both transmission racks extend in the vertical direction and are respectively installed on the left and right side walls of the movable window sash. The drive motor, transmission shaft, and control unit are all installed inside the lower side wall of the lifting window sash.

[0016] As a preferred embodiment, the lower side wall of the liftable window sash is provided with the anti-pinch mechanism.

[0017] As a preferred embodiment, the contact element is a soft silicone strip.

[0018] Compared with the prior art, this utility model has obvious advantages and beneficial effects. Specifically, as can be seen from the above technical solution, it mainly solves the problem of pinching hands when the movable window sash is lowered, thus eliminating the safety hazard. The anti-pinch mechanism includes a triggering device and an elastically deformable contact. The triggering device is electrically connected to the control unit, so that the contact can be elastically deformed to trigger the triggering device. When a hand is placed on the contact and a certain pressure is applied, the contact can be elastically deformed, causing the triggering device to be triggered. The triggering device can send a signal to the control unit, and the control unit controls the drive mechanism to stop moving, thereby stopping the movable window sash from moving.

[0019] To more clearly illustrate the structural features, technical means, and specific objectives and functions of this utility model, the following detailed description is provided in conjunction with the accompanying drawings and specific embodiments. Attached Figure Description

[0020] Figure 1 This is a three-dimensional schematic diagram of the overall structure of an embodiment of this utility model;

[0021] Figure 2 This is a three-dimensional schematic diagram of the overall structure of an embodiment of this utility model from another angle;

[0022] Figure 3 This is an exploded view of an embodiment of the present utility model;

[0023] Figure 4 This is another exploded view of an embodiment of the present utility model;

[0024] Figure 5 This is a cross-sectional schematic diagram of the anti-pinch mechanism located on the lower side wall of the window frame according to an embodiment of the present invention;

[0025] Figure 6 This is a partial cross-sectional schematic diagram of the anti-pinch mechanism located on the lower side wall of the window frame according to an embodiment of the present invention;

[0026] Figure 7 This is a partial three-dimensional structural schematic diagram of an embodiment of the present utility model;

[0027] Figure 8 This is a three-dimensional structural schematic diagram of another embodiment of the present utility model.

[0028] Explanation of reference numerals in the attached diagram:

[0029] 10. Window frame; 20. Sliding window sash

[0030] 30. Anti-pinch mechanism; 31. Triggering device

[0031] 32. Contact piece 321, contact convex portion

[0032] 322. First fastening part; 33. Support frame

[0033] 331. Mounting position; 332. Positioning groove

[0034] 333, Second fastening part; 34, Silicone pad

[0035] 40. Lifting window sash; 50. Drive motor

[0036] 60. Drive shaft; 70. Drive rack

[0037] 80. Transmission gears. Detailed Implementation

[0038] In the description of this utility model, it should be noted that if terms such as "center", "upper", "lower", "left", "right", "front", "back", "vertical", "horizontal", "inner", and "outer" appear to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0039] Please refer to Figures 1 to 8 As shown, it illustrates the specific structure of the anti-pinch lifting window provided in an embodiment of the present invention.

[0040] The anti-pinch lift window includes a window frame 10, a movable window sash 20, and a drive mechanism. The window frame 10 has an assembly space, and the movable window sash 20 is movably installed within the assembly space. The drive mechanism drives the movable window sash 20 to move and is connected to a control unit. An anti-pinch mechanism 30 is provided at the end of the moving path of the movable window sash 20. The anti-pinch mechanism 30 includes a triggering device 31 and an elastically deformable contact 32. The triggering device 31 is electrically connected to the control unit, and the contact 32 is used to trigger the triggering device 31 by undergoing elastic deformation. The contact 32 is a soft silicone strip. When the triggering device 31 is triggered, the control unit controls the drive mechanism to stop moving. Thus, when a hand is placed on the contact 32 and a certain pressure is applied, the contact 32 can undergo elastic deformation, causing the triggering device 31 to be triggered. The triggering device 31 can send a signal to the control unit, and the control unit controls the drive mechanism to stop moving, thereby stopping the movable window sash 20 from moving. This solves the problem of easy hand pinching when the movable window sash 20 is lowered and eliminates safety hazards.

[0041] The anti-pinch lift window also includes a liftable window sash 40. Both the liftable window sash 40 and the movable window sash 20 are vertically movable within the assembly space. The liftable window sash 40 and the movable window sash 20 are arranged front to back. The anti-pinch mechanism 30 is provided on the lower and / or upper sidewalls of the window frame 10. Figure 7 As shown, in this embodiment, the anti-pinch mechanism 30 is provided on both the lower and upper side walls of the window frame 10, and the anti-pinch mechanism 30 is spaced from the inner wall of the lower side wall and the inner wall of the upper side wall of the window frame 10.

[0042] The driving mechanism includes a drive motor 50, a transmission shaft 60, and two transmission racks 70. The control unit controls the drive motor 50 to selectively rotate in both directions. The drive motor 50 drives the transmission shaft 60 to rotate. The left and right ends of the transmission shaft 60 are respectively connected to the two transmission racks 70 via transmission gears 80. Both transmission racks 70 extend in the vertical direction and are respectively mounted on the left and right side walls of the movable window sash 20. The drive motor 50, transmission shaft 60, and control unit are all mounted inside the lower side wall of the lifting window sash 40. Figure 7 and Figure 8 As shown, in this embodiment, the lower side wall of the lifting window sash 40 is provided with the anti-pinch mechanism 30.

[0043] In the initial state, both the lifting window sash 40 and the movable window sash 20 are in the closed state (the upper end of the lifting window sash 40 is embedded in the upper side wall of the window frame 10, and the lower end of the movable window sash 20 is embedded in the lower side wall of the window frame 10). At this time, if it is necessary to open the movable window sash 20, the drive motor 50 can be rotated forward to drive the transmission shaft 60 to rotate. The transmission shaft 60 drives the transmission rack 70 to move upward through the meshing of the transmission gear 80 and the transmission rack 70. The transmission rack 70 then moves the movable window sash 20 upward in conjunction with the transmission shaft 60.

[0044] The triggering device 31 is a trigger switch. Multiple trigger switches are arranged at uniform intervals along the length of the contact member 32. Each trigger switch is electrically connected to the control unit. In this way, the corresponding trigger switch can be triggered no matter where the hand is placed on the contact member 32, avoiding the phenomenon of failure to trigger. Moreover, if some of the trigger switches are damaged, they can be triggered by other trigger switches.

[0045] The anti-pinch mechanism 30 includes a support frame 33, on which mounting positions 331 are provided. Multiple mounting positions 331 are provided accordingly. The triggering device 31 is mounted on the corresponding mounting position 331. The contact member 32 is mounted on the support frame 33 and covers the triggering device 31. The contact member 32 has a contact protrusion 321 extending along the length direction of the contact member 32 at the middle of one end facing the triggering device 31. The left and right ends of the contact protrusion 321 extend to the left and right ends of the contact member 32. The contact protrusion 321 is used to contact the triggering device 31. In this way, the contact protrusion 321 can ensure that the contact member 32 can contact and trigger the triggering device 31 when it undergoes elastic deformation.

[0046] The support frame 33 is provided with a positioning groove 332 extending along the length direction of the support frame 33. The plurality of mounting positions 331 are formed at the bottom of the positioning groove 332 and are arranged at uniform intervals in the left and right directions. One end of the triggering device 31 is exposed in the positioning groove 332, and the other end of the triggering device 31 extends into the interior of the support frame 33 through the bottom of the positioning groove 332.

[0047] A silicone pad 34 is provided in the positioning groove 332 on one side of the triggering device 31. The two sides of the silicone pad 34 are respectively constrained by the contact member 32 and the bottom of the positioning groove 332. The silicone pad 34 is provided between two adjacent triggering devices 31.

[0048] The contact member 32 has a first fastening part 322 protruding on both sides of the end facing the support frame 33, and the support frame 33 has a second fastening part 333 protruding on both sides of the end facing the contact member 32. The first fastening part 322 and the second fastening part 333 fasten each other, thus realizing the interlocking connection structure between the contact member 32 and the support frame 33, which is more conducive to disassembly and assembly.

[0049] In summary, the key design feature of this invention lies in its anti-pinch mechanism, which is installed at the end of the moving path of the movable window sash. This mechanism includes a triggering device and an elastically deformable contact. The triggering device is electrically connected to the control unit, allowing the contact to undergo elastic deformation to trigger the device. When a hand is placed on the contact and pressure is applied, the contact undergoes elastic deformation, triggering the device. The triggering device then sends a signal to the control unit, which in turn controls the drive mechanism to stop moving, thus stopping the movable window sash. This solves the problem of fingers being easily pinched when the movable window sash descends, eliminating safety hazards.

[0050] The above description is merely a preferred embodiment of the present utility model and does not constitute any limitation on the technical scope of the present utility model. Therefore, any minor modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model shall still fall within the scope of the technical solution of the present utility model.

Claims

1. An anti-pinch lift window, comprising a window frame, a movable window sash, and a drive mechanism, wherein the window frame has an assembly space, the movable window sash is movably installed within the assembly space, the drive mechanism drives the movable window sash to move, and the drive mechanism is connected to a control unit; characterized in that: An anti-pinch mechanism is provided at the end of the moving path of the movable window sash. The anti-pinch mechanism includes a triggering device and a contact member capable of elastic deformation. The triggering device is electrically connected to the control unit, and the contact member is used to trigger the triggering device by undergoing elastic deformation. When the triggering device is triggered, the control unit controls the drive mechanism to stop operating.

2. The anti-pinch lifting window according to claim 1, characterized in that: The triggering device is a trigger switch, and multiple trigger switches are provided. The multiple trigger switches are arranged at intervals along the length direction of the contact member, and the multiple trigger switches are electrically connected to the control unit respectively.

3. The anti-pinch lifting window according to claim 1, characterized in that: The anti-pinch mechanism includes a support frame with a mounting position. The triggering device is mounted on the mounting position. The contact is mounted on the support frame and covers the triggering device. The contact has a contact protrusion extending along the length of the contact at the center of one end facing the triggering device. The contact protrusion is used to contact the triggering device.

4. The anti-pinch lifting window according to claim 3, characterized in that: The support frame is provided with a positioning groove extending along the length of the support frame. The mounting position is formed at the bottom of the positioning groove. One end of the triggering device protrudes from the positioning groove, and the other end of the triggering device extends through the bottom of the positioning groove into the interior of the support frame.

5. The anti-pinch lifting window according to claim 4, characterized in that: A silicone pad is provided on one side of the triggering device in the positioning groove, and the two sides of the silicone pad are respectively constrained by the contact element and the bottom of the positioning groove.

6. The anti-pinch lifting window according to claim 3, characterized in that: The contact member has a first fastening part protruding on both sides of the end facing the support frame, and the support frame has a second fastening part protruding on both sides of the end facing the contact member, and the first fastening part and the second fastening part fasten together.

7. The anti-pinch lifting window according to claim 1, characterized in that: It also includes a liftable window sash, both of which are movable and can be installed vertically within the assembly space. The liftable and movable window sashes are arranged front to back, and the anti-pinch mechanism is provided on the lower and / or upper sidewalls of the window frame.

8. The anti-pinch lifting window according to claim 7, characterized in that: The drive mechanism includes a drive motor, a transmission shaft, and two transmission racks. The control unit controls the drive motor to selectively rotate in both directions. The drive motor drives the transmission shaft to rotate. The left and right ends of the transmission shaft are respectively connected to the two transmission racks via transmission gears. Both transmission racks extend in the vertical direction and are respectively installed on the left and right side walls of the movable window sash. The drive motor, transmission shaft, and control unit are all installed inside the lower side wall of the lifting window sash.

9. The anti-pinch lifting window according to claim 7, characterized in that: The anti-pinch mechanism is provided on the lower side wall of the lifting window sash.

10. The anti-pinch lifting window according to claim 1, characterized in that: The contact element is a soft silicone strip.