Cantilever locking mechanism for doors and windows

Abstract

The present invention relates to a door and window structure, specifically a cantilever locking mechanism for a door and window, comprising at least one cantilever and at least one locking rod installed in a leaf; the locking rod is controlled by the handle of the door and window to slide in the leaf, one end of the cantilever is slidably matched with the locking rod, and the other end is hinged on the frame or on a sliding mechanism in the frame; a locking point is fixed on the locking rod, a long strip groove is provided on the cantilever, an opening is provided in the middle of the groove, and the locking points are arranged in a one-to-one correspondence in the groove and can slide or disengage in the groove. The present invention sets a locking point on the transmission rod, and cooperates with the translation sliding mechanism to realize the inward tilting (upward hanging) function without occupying additional space on the leaf or frame.

Description

Technical Field

[0001] The invention relates to a door and window structure, in particular to a door and window cantilever locking mechanism. Background Art

[0002] The hardware accessories of the tilt-and-tilt doors and windows mainly include the upper cantilever, the lower cantilever and the transmission mechanism. The three states of the sliding tilt-and-tilt windows are:

[0003] 1) Locked state: the upper and lower cantilevers are closed, the locking point of the transmission mechanism cooperates with the lock seat to lock the door fan on the frame;

[0004] 2) Translation state: The upper and lower cantilevers are both open, the sash is out of the frame, and the sash can slide on the track of the frame;

[0005] 3) Inward tilt (upper hanging) state: the upper cantilever is open and the lower cantilever is closed. At this time, the fan and the frame form a certain angle, the upper part is ventilated, and the fan cannot slide.

[0006] In the above three states of tilt-in doors and windows, the lower cantilever is not allowed to open when tilting or locking. Figure 1 The realization of the tilting state is mainly achieved by the lock point 21 on the leaf 10 and the lock seat 40 on the frame, that is, the lower part of the leaf 10 is locked and the upper part is open, but the locking at this time is only tilting locking. Since the lower frame 30 cannot be equipped with both the tilting lock point and the transmission locking lock point, when the leaf 10 is in the fully closed state, there is no locking point between the lower frame 30 and the leaf 10, and the safety and airtightness are poor. The existing sliding window profile structure has an open frame with a transmission part at the lower part, and there is no notch for installing hardware, and it is also impossible to install a lock seat to increase the tilting function, which limits the structural modification and use of doors and windows. Summary of the invention

[0007] In order to solve the above problems, the present invention provides a cantilever locking mechanism for doors and windows. A locking point is set on the transmission rod, and the mechanism cooperates with the translation sliding mechanism to realize the inward tilting (upward hanging) function without occupying additional space on the sash or frame. The technical solution adopted by the present invention is:

[0008] A cantilever locking mechanism for doors and windows, comprising at least one cantilever and at least one locking rod installed in a sash; the locking rod is driven and controlled by a handle of the door and window to slide in the sash, one end of the cantilever is slidably matched with the locking rod, and the other end is hinged on a frame or a sliding mechanism in the frame;

[0009] A locking point is fixedly provided on the locking rod, a long strip groove is provided on the cantilever, an opening is provided in the middle of the groove, and the locking points are arranged in the groove one by one and can slide or detach in the groove; when the locking point slides to one end of the groove, the door leaf is in a locked state; when the locking point slides to the opening of the groove, the locking point can detach from the groove, the cantilever can rotate, and the door leaf is in an openable state; when the locking point slides to the other end of the groove, the door leaf is in an inwardly tilted state.

[0010] The above-mentioned door and window cantilever locking mechanism has a long sliding hole on the locking rod, and a limit pin is provided at one end of the cantilever, and the limit pin can be slidably inserted in the sliding hole.

[0011] The above-mentioned door and window cantilever locking mechanism has two cantilevers and two locking rods respectively, and the cantilevers and locking rods are matched one by one, and the two locking rods are transmission-connected through a transmission rod.

[0012] The above-mentioned cantilever locking mechanism for doors and windows can be arranged in the upper sash frame or / and the lower sash frame of the door and window.

[0013] The beneficial effects of the present invention are as follows: the cantilever locking mechanism integrates the locking point and the "locking seat" (cantilever groove) into the original transmission mechanism of the sliding window, does not occupy additional space of the leaf or frame, has a compact structure, and has multiple locking point functions; the locking point slides with the locking rod, and can control its position in the cantilever groove, corresponding to the opening and closing and inward tilting state of the leaf, ensuring the safety and airtightness of the leaf when locked. For existing sliding or casement doors and windows with cantilevers, they can be modified by opening a groove on the cantilever and setting a locking rod and a locking point, adding an inward tilting function and saving costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of a tilt-in window in the prior art when it is in the tilt-in state.

[0015] Figure 2 This is a schematic diagram of the structure of the transmission mechanism when the doors and windows are locked according to an embodiment of the present invention;

[0016] Figure 3 This is a schematic diagram of the locking point when the doors and windows are locked according to an embodiment of the present invention;

[0017] Figure 4 It is a schematic diagram of the structure of the transmission mechanism when the door and window are in a flat open (pushing and pulling) state according to an embodiment of the present invention;

[0018] Figure 5 This is a schematic diagram of the locking point when the door and window are in a flat open (pushing or pulling) state according to an embodiment of the present invention;

[0019] Figure 6 It is a structural schematic diagram of the fully opened cantilever when the door and window are in a flat open (pushing and pulling) state according to an embodiment of the present invention;

[0020] Figure 7 It is a schematic diagram of the structure of the transmission mechanism when the door and window are tilted inwards according to an embodiment of the present invention;

[0021] Figure 8 This is a schematic diagram of the locking points when the doors and windows are tilted inwards according to an embodiment of the present invention.

[0022] In the figure: 1, slide rod; 2, lock rod; 3, cantilever; 4, transmission rod; 5, angle transmission; 6, transmission box; 7, handle; 21, locking point; 22, slide hole; 31, locking end; 32, opening; 33, inverted end; 34, limit pin; 10, fan; 20, upper frame; 30, lower frame; 40, lock seat. DETAILED DESCRIPTION

[0023] The present invention is further explained below in conjunction with the accompanying drawings.

[0024] This embodiment relates to a cantilever locking mechanism for doors and windows that can be used in translation and tilting, and can also be used in other structures such as inward-opening and tilting doors and windows, outward-opening and bottom-hung doors and windows. The cantilever locking mechanism includes at least one cantilever 3 and at least one locking rod 2 installed in the sash. In this embodiment, there are two cantilever arms 3 and two locking rods 2, and the cantilever arms 3 and the locking rods 2 are matched one by one, and the two locking rods 2 can be connected by transmission rods 4.

[0025] The lock rod 2 is driven and controlled by the handle 7 of the door and window to slide in the leaf. The lock rod 2 is provided with a long sliding hole 22. One end of the cantilever 3 is provided with a limit pin 34. The limit pin 34 can be slidably inserted in the sliding hole 22. The other end of the cantilever 3 is hinged on the frame or on the slide rod 1 of the sliding mechanism in the frame. The sliding mechanism can refer to the solution of patent application No. 2020115095052 "A push-pull sliding mechanism and door and window".

[0026] The locking rod 2 is fixed with a locking point 21 , the cantilever 3 is provided with a long strip groove, the middle of the groove is provided with an opening 32 , and the locking points 21 are arranged in the groove in a one-to-one correspondence and can slide or detach in the groove.

[0027] For the locked, opened and tilted status of doors and windows, please refer to the attached Figure 2 To Attachment Figure 8 Specific instructions:

[0028] ① Locking state of the fan: Combined with the attached Figure 2 and attached Figure 3 The handle of the handle 7 is downward, and the locking point 21 is limited to the left end of the groove of the cantilever 3, that is, the locking end 31. The cantilever 3 cannot be rotated to open, and the upper and lower parts of the door are pressed against the frame in a locked state. The locking point 21 improves the airtightness and safety of the door when locked.

[0029] ② The openable state of the door: combined with the attached Figure 4To Attachment Figure 6 , turn the handle 7 to the horizontal direction, through the transmission of the transmission box 6 and the angle transmission device 5, the lock rod 2 connected to the angle transmission device 5 slides in the door leaf, thereby driving the lock point 21 to slide to the opening 32 of the groove, at this time, the lock point 21 can be separated from the groove of the cantilever 3, and the cantilever 3 can be freely rotated to a horizontally opened state, and the upper and lower parts of the door leaf are both in an open state. If a slidable slide bar 1 is installed in the frame, the door leaf can also be pushed and pulled and slid left and right after it is opened.

[0030] ③ The inward tilt of the fan: combined with the attached Figure 7 and attached Figure 8 The handle of the handle 7 is facing upwards, and through the transmission of the transmission box 6 and the angle transmission device 5, the locking rod 2 slides to the right in the door leaf, thereby driving the locking point 21 to slide to the right from the opening 32 of the groove to the inner end 33. The locking point 21 is limited to the inner end 33, the cantilever 3 cannot be opened, the lower part of the door leaf cannot be opened, the upper part is opened, and the door leaf is in an inwardly tilted state.

Claims

1. A cantilever locking mechanism for doors and windows, characterized in that: It comprises at least one cantilever (3) and at least one locking rod (2) installed in the sash; the locking rod (2) is driven and controlled by a handle (7) of the door or window to slide in the sash; one end of the cantilever (3) is slidably matched with the locking rod (2), and the other end is hinged on the frame or on a sliding mechanism in the frame; The locking rod (2) is fixedly provided with a locking point (21), the cantilever (3) is provided with a long strip-shaped groove, the middle of the groove is provided with an opening (32), and the locking point (21) slides or disengages in the corresponding groove; When the locking point (21) slides to one end of the groove, the cantilever (3) cannot be rotated to open, and the upper and lower parts of the sash are pressed tightly against the frame to form a locked state; When the locking point (21) slides to the opening (32) of the groove, the locking point (21) can be separated from the groove, the cantilever (3) can be rotated, and the upper and lower parts of the sash are both in an open state; When the locking point (21) slides to the other end of the groove, the cantilever (3) cannot be opened, the lower part of the door leaf cannot be opened, the upper part is opened, and the door leaf is in an inward tilted state.

2. The door and window cantilever locking mechanism according to claim 1, characterized in that: The locking rod (2) is provided with a long strip-shaped sliding hole (22), and one end of the cantilever (3) is provided with a limiting pin (34), and the limiting pin (34) can be slidably inserted in the sliding hole (22).

3. The door and window cantilever locking mechanism according to claim 1, characterized in that: There are two cantilevers (3) and two locking rods (2), respectively. The cantilevers (3) and the locking rods (2) are matched one to one, and the two locking rods (2) are connected in a transmission manner via a transmission rod (4).

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