Double anti-drop structure transmission corner turner
Patent Information
- Application Number
- CN202522303581.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-30
- Publication Date
- 2026-10-09
- Estimated Expiration
- 2035-10-30
AI Technical Summary
目前的转角器是通过门窗扇上的凹槽进行卡接配合来实现固定，该连接方式存在容易摇晃、不稳定的问题，容易出现门窗扇与转角器脱离导致门窗扇脱落或倾斜无法正常关闭等问题
[0009]本实用新型的有益效果在于：通过采用紧固螺丝和紧固插销对转角器与门窗扇进行双重固定，有效防止门窗扇与转角器脱离，配合转角器上设置的多段限位部件，可有效提高门窗扇在不同状态下与门窗框的有效稳定连接，提高可悬挂平开门窗的安全性。
Smart Images
Figure CN224834750U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of door and window connection structure technology, and in particular to a double anti-detachment structure transmission corner device. Background Technology
[0002] A corner bracket is an accessory installed on door and window sashes to stably connect them to the frame. It's primarily used for door and window structures that can simultaneously operate in three states: suspended, open, and closed. This is because switching between these states involves rotating a handle at different angles to change the connection between the sash and frame. When closed, the sash is fixed to the frame; when open, it can be freely separated; and when suspended, it can engage within a certain angle range, allowing it to rotate outwards or inwards (depending on the orientation). To ensure accurate connection between the sash and frame in all states, a corner bracket is installed to connect to the handle on the sash, providing a precise and stable fit and achieving the desired effect. The current corner brackets are fixed by engaging with grooves on the door and window sashes. This connection method is prone to shaking and instability, which can easily lead to problems such as the door and window sashes detaching from the corner bracket, causing the door and window sashes to fall off or tilt and fail to close properly. Utility Model Content
[0003] The purpose of this utility model is to provide a transmission corner device with a double anti-detachment structure, specifically a transmission corner device that can be double stably connected with door and window sashes and effectively prevent door and window sashes from detaching from the corner device.
[0004] To achieve the above objectives, the present invention adopts the following technical solution: a double anti-detachment structure transmission corner device, comprising an L-shaped corner device body, a transmission connecting rod, a transmission spring, and a sliding block. The transmission connecting rod is slidably connected to the vertical section of the L-shaped corner device body, and the sliding block is slidably connected to the horizontal section of the L-shaped corner device body. The transmission connecting rod and the sliding block are connected by the transmission spring. The L-shaped corner device body is inserted into the connecting groove of a door or window sash. A fastening screw is provided on the vertical section of the L-shaped corner device body to fasten it to the door or window sash. A fastening pin is provided at the right angle of the L-shaped corner device body to fasten it to the door or window sash.
[0005] Specifically, a rotation limit rod is provided on the vertical section of the L-shaped corner unit, and multiple limit components are provided on the transmission connecting rod to cooperate with the rotation limit rod.
[0006] Specifically, the multi-segment limiting component includes a suspension limiting block and a closing limiting block, with a planar through slot formed between the suspension limiting block and the closing limiting block.
[0007] Specifically, the suspension limit block is generally teardrop-shaped, with the end closer to the closing limit block being larger than the end further away from the closing limit block.
[0008] Specifically, the rotation limit rod is rotatably connected to the L-shaped corner unit body via a reset torsion spring.
[0009] The beneficial effects of this utility model are as follows: by using fastening screws and fastening pins to double fix the corner unit and the door / window sash, the door / window sash can be effectively prevented from detaching from the corner unit. In conjunction with the multi-segment limiting components set on the corner unit, the effective and stable connection between the door / window sash and the door / window frame under different states can be effectively improved, thereby enhancing the safety of the suspended casement doors and windows. Attached Figure Description
[0010] Appendix Figure 1 This is a schematic diagram of the overall structure of the dual anti-detachment transmission angle device in the embodiment; Appendix Figure 2 This is a schematic diagram of the disassembled structure of the dual anti-detachment transmission angle device in the embodiment; Appendix Figure 3 This is a schematic diagram of the disassembled structure of the transmission connecting rod and the rotation limit rod in the embodiment.
[0011] Explanation of reference numerals in the attached drawings: 1-L-type corner bracket body, 11-fastening screw, 12-fastening pin, 2-transmission link, 3-transmission spring, 4-sliding block, 5-rotation limit rod, 51-locking block, 52-reset torsion spring, 6-multi-segment limit component, 61-suspending limit block, 62-closing limit block, 63-flat open slot. Detailed Implementation
[0012] Example 1, referring to Figure 1-3 A double anti-detachment structure transmission corner device includes an L-shaped corner device body 1, a transmission connecting rod 2, a transmission spring 3, and a sliding block 4. The transmission connecting rod 2 is slidably connected to the vertical section of the L-shaped corner device body 1, and the sliding block 4 is slidably connected to the horizontal section of the L-shaped corner device body 1. The transmission connecting rod 2 and the sliding block 4 are connected by the transmission spring 3. The L-shaped corner device body 1 is inserted into the connecting groove of a door or window sash. A fastening screw 11 is provided on the vertical section of the L-shaped corner device body 1 to fasten it to the door or window sash. A fastening pin 12 is provided at the right angle of the L-shaped corner device body 1 to fasten it to the door or window sash.
[0013] In this embodiment, the L-shaped corner bracket body 1 is fitted and installed on a right angle of the door or window sash by inserting into the groove on the edge of the door or window sash. The transmission link 2 is driven to the rotating handle of the door or window sash. When the rotating handle of the door or window sash is rotated, it can drive the transmission link 2 to move up and down. The transmission link 2 is connected to the sliding block 4 through the transmission spring 3. The transmission link 2 can drive the sliding block 4 to move left and right through the transmission spring 3. In addition, for some handles located at the bottom of the door or window sash, the sliding block 4 can also be driven to the bottom handle. The L-shaped corner bracket body 1 is fastened to the door and window sash on the vertical section by fastening screws 11. After the L-shaped corner bracket body 1 is inserted into the groove of the door and window sash, the fastening screws 11 can be used to push the L-shaped corner bracket body 1 against the door and window sash to achieve a fastening and prevent the L-shaped corner bracket body 1 from loosening. In addition, a fastening pin 12 is also provided at the right angle of the L-shaped corner bracket body 1 to fasten the L-shaped corner bracket body 1 to the door and window sash, further improving the connection stability between the L-shaped corner bracket body 1 and the door and window sash and preventing loosening or falling off.
[0014] Furthermore, the corner unit in this embodiment also utilizes the position of the transmission link 2 in different states of the door and window sash to adjust the connection between the corner unit and the door and window frame, thereby ensuring a safe and stable connection of the door and window sash in different states. Specifically, the following structure is adopted: A rotation limit rod 5 is provided on the vertical section of the L-shaped corner unit body 1, and multiple limiting components 6 are provided on the transmission link 2 to correspondingly engage with the rotation limit rod 5. When the transmission link 2 is in different positions, the different positions of the multiple limiting components 6 limit the rotation limit rod 5 to different degrees. Only by setting a limiting block at the corresponding position on the door and window frame can the limiting block engage the rotation limit rod 5 to achieve the limiting engagement of the door and window frame with the door and window sash. Specifically, the multiple limiting components 6 include a hanging limiting block 61 and a closing limiting block 62, with a planar through groove 63 formed between the hanging limiting block 61 and the closing limiting block 62. A locking block 51 is provided at the lower end of the rotation limit rod 5 to correspondingly engage with the multiple limiting components 6. When the door / window sash is in the openable position, the transmission link 2 is in the middle position. At this time, the openable slot 63 of the transmission link 2 is aligned with the locking block 51 at the lower end of the rotation limit rod 5. The locking block 51 of the rotation limit rod 5 can rotate through the openable slot 63, thus having a large rotation angle. At this time, the limiting block on the door / window frame will not fix the rotation limit rod 5, and the door / window sash can open outward normally. When the door / window sash is in the closeable position, the transmission link 2 is in the upward position. At this time, the closing limit block 62 of the transmission link 2 is aligned with the locking block 51 at the lower end of the rotation limit rod 5. The rotation limit rod 5 cannot rotate under the action of the closing limit block 62. With the help of the limiting block on the door / window frame, the door / window can be closed. The door and window sash is fixedly engaged to improve the stability of the door and window sash when closed. When the door and window sash is in a suspended state, the transmission link 2 is in the downward position. At this time, the suspension limit block 61 of the transmission link 2 is aligned with the locking block 51 at the lower end of the rotation limit rod 5. The suspension limit block 61 is generally teardrop-shaped, with the end closer to the closing limit block 62 being larger than the end farther from the closing limit block 62. The suspension limit block 61 is narrower than the closing limit block. The rotation limit rod 5 is locked after rotating a certain angle due to the limitation of the suspension limit block 61. In conjunction with the limiting locking block on the door and window frame, the door and window sash can be locked after rotating outward or inward to a suspended state, thereby achieving a stable connection of the door and window sash in the suspended state. Correspondingly, in this embodiment, the rotation limit rod 5 is rotatably connected to the L-shaped corner bracket body 1 through the return torsion spring 52. The reset torsion spring 52 can drive the rotation limit rod 5 to reset to the position where the door and window sash is in the closed state, so that the rotation limit rod 5 can return to its original position after passing through the open or suspended state and returning to the closed state.
[0015] Of course, the above are only preferred embodiments of this utility model and are not intended to limit the scope of application of this utility model. Therefore, any equivalent changes made to the principle of this utility model should be included within the protection scope of this utility model.
Claims
1. A transmission angle device with a dual anti-detachment structure, characterized in that: The device includes an L-shaped corner bend body, a transmission link, a transmission spring, and a sliding block. The transmission link is slidably connected to the vertical section of the L-shaped corner bend body, and the sliding block is slidably connected to the horizontal section of the L-shaped corner bend body. The transmission link and the sliding block are connected by the transmission spring. The L-shaped corner bend body is inserted into the connecting groove of a door or window sash. The vertical section of the L-shaped corner bend body is provided with fastening screws for fastening to the door or window sash, and the right-angle section of the L-shaped corner bend body is provided with a fastening pin for fastening to the door or window sash.
2. The dual anti-detachment transmission angle device according to claim 1, characterized in that: A rotation limit rod is provided on the vertical section of the L-shaped corner unit body, and multiple limit components are provided on the transmission connecting rod to cooperate with the rotation limit rod.
3. The dual anti-detachment transmission angle device according to claim 2, characterized in that: The multi-segment limiting component includes a suspension limiting block and a closing limiting block, with a planar through slot formed between the suspension limiting block and the closing limiting block.
4. The dual anti-detachment transmission angle device according to claim 3, characterized in that: The suspension limiting block is generally teardrop-shaped, with the end closer to the closing limiting block being larger than the end farther away from the closing limiting block.
5. The dual anti-detachment transmission angle device according to claim 2, characterized in that: The rotation limit rod is rotatably connected to the L-shaped corner unit body via a reset torsion spring.