Multi-point locking device for doors and windows

Abstract

The present application relates to the technical field of doors and windows, and specifically discloses a multi-lock-point door and window mechanical locking device, which comprises a base, a supporting frame arranged on the base, a window seat arranged on the base, and a window sash, the window sash and the window seat being rotationally connected, and further comprising a locking assembly and a truss-type transmission assembly, the locking assembly being composed of multiple sets of locking hooks and locking catches, and the locking assembly being rotationally connected with the truss-type transmission assembly. The truss-type transmission assembly comprises a set of lattice-type transmission rods, one end of the truss-type transmission assembly away from the locking assembly being rotationally connected with the supporting frame, the truss-type transmission assembly being detachably arranged on the window sash, and a plurality of locking catch mounting codes being detachably arranged on the base, and one locking catch being detachably arranged on each locking catch mounting code. The present application can realize synchronous action of multiple locking points and is suitable for various types of opening doors and windows.

Description

Technical Field

[0001] This invention relates to the technical field of doors and windows, and specifically to a multi-point locking device for doors and windows. Background Technology

[0002] Doors and windows are highly efficient at ventilation, heat dissipation, and smoke exhaust, and their applications in modern buildings are numerous.

[0003] Doors and windows are an important part of architectural design. Their shape, size, proportion, arrangement, color, and style greatly influence the building's appearance. Doors and windows include doors and windows themselves. By creating operable doors and windows on the building's surface, the purpose of facilitating air circulation, heat dissipation, and smoke exhaust can be achieved. Locking devices are used to secure doors and windows when they are closed, preventing them from being opened by wind loads. Door and window locking devices typically use a set of mechanical locking points, with the lock hook and latch located in the middle of the width of the operable sash, which has weak resistance to strong winds.

[0004] The existing technology still has the following areas for improvement: the existing technology uses a single locking point for locking, which is insufficient for locking doors and windows with a length greater than 2.0m. Summary of the Invention

[0005] To address the aforementioned problems in the prior art, this invention provides a multi-point mechanical locking device for doors and windows, which can set multiple synchronously operating locking points on the opening edge of doors and windows with a length greater than 2.0m. The position and number of the multiple locking points can be flexibly adjusted according to the actual length of the doors and windows with a length greater than 2.0m.

[0006] The objective of this invention can be achieved through the following technical solutions:

[0007] A multi-point locking device for doors and windows includes a base, a support frame disposed on the base, a window seat and a window sash disposed on the base, wherein the window sash and the window seat are rotatably connected, and further includes a locking assembly and a truss-type transmission assembly. The locking assembly consists of multiple sets of locking hooks and latches, and the truss-type transmission assembly and the locking assembly are rotatably connected.

[0008] The truss-type transmission assembly includes a set of lattice-type transmission rods, a slider, a rear pin, a rear mounting bracket, and a push rod. The end of the truss-type transmission assembly away from the locking assembly is rotatably connected to the support frame. The truss-type transmission assembly is detachably mounted on the window sash. Multiple locking mounting brackets are detachably mounted on the base, and each locking mounting bracket is detachably mounted with a locking buckle that matches the locking hook.

[0009] Furthermore, the window sash is detachably provided with one rear mounting bracket and multiple front mounting brackets. The rear mounting bracket is detachably connected to the window sash, and the front mounting bracket is detachably connected to the window sash. The lattice-type transmission rod is connected to multiple locking hooks via a second front pin, and the locking hook is connected to the front mounting bracket via a first front pin. The first front pin is provided with a locking hook reset torsion spring, and the rear mounting bracket is provided with a waist-shaped hole.

[0010] The lattice-type transmission rod is welded to the slider at one end near the rear mounting bracket. The slider is located inside the rear mounting bracket and has a first through hole. The front end of the push rod is located inside the slider and has a second through hole at its front end. The rear mounting bracket has an oblong hole. The rear pin passes through the oblong hole, the first through hole, and the second through hole, connecting the front end of the push rod, the slider, and the rear mounting bracket into one unit, and can slide back and forth within the oblong hole of the rear mounting bracket.

[0011] Furthermore, the truss-type transmission assembly also includes an actuator, with the push rod located inside the actuator, the push rod being used to push the slider and the lattice-type transmission rod to slide forward or backward.

[0012] Furthermore, two gas springs are provided on both sides of the window sash, and the ends of the two gas springs away from the window sash are rotatably connected to the base.

[0013] Furthermore, the window sash and the window seat are connected by a rotating component.

[0014] The beneficial effects of this invention are as follows:

[0015] (1) By setting a set of lattice transmission rods, multiple locking hooks and multiple locking buckles, the technical effect that can be achieved is to realize the synchronous locking or unlocking of multiple locking points through multiple locking hooks, so as to prevent the situation where other locking points on the window sash are locked due to the asynchrony of one locking point. The structure of the lattice transmission rod can be applied to doors and windows with a length greater than 2.0m. The position and number of multiple locking hooks can be flexibly adjusted according to the actual length of doors and windows with a length greater than 2.0m. The combination of multiple locking buckles and multiple locking hooks enhances the locking force between the window sash and the window seat, and the window sash and the window seat are not easy to separate.

[0016] (2) By setting up a lattice-type transmission rod, a rear mounting bracket, a rear pin, a slider, a push rod, multiple locking hooks and multiple latches, the technical effect that can be achieved is that when the push rod retracts, the rear pin slides backward in the waist-shaped hole on the rear mounting bracket, the slider slides backward behind the rear pin, the lattice-type transmission rod slides backward with the slider, and each locking hook rotates clockwise synchronously to approach its corresponding latch, thus achieving a closed state. Moreover, multiple locking hooks are installed on the opening edge of the window sash, the lever arm from the locking hook to the rotating part reaches its maximum value, the locking torque also reaches its maximum value, and the window sash and window seat are locked more firmly to each other.

[0017] (3) By setting up gas springs, the technical effect that can be achieved is that two gas springs connect the two sides of the window sash. When the truss-type transmission assembly opens the window sash, the gas springs support the opening of both sides of the window sash, maintaining the stability of the window sash. Attached Figure Description

[0018] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to the accompanying drawings.

[0019] Figure 1 This is a top view of Embodiment 1;

[0020] Figure 2 This is a schematic diagram of the overall structure in the open state of Embodiment 1;

[0021] Figure 3 This is a schematic diagram of the overall structure in the closed state of Embodiment 1;

[0022] Figure 4 for Figure 3 A magnified view of part A in the image;

[0023] Figure 5 for Figure 3 A magnified view of part B in the image;

[0024] Figure 6 This is a top view of Embodiment 2;

[0025] Explanation of key component symbols:

[0026] In the diagram: 10. Lock; 11. Lock mounting bracket; 12. Front mounting bracket; 13. Lock hook; 14. Lock hook return torsion spring; 15. Rear mounting bracket; 16. Waist-shaped hole; 17. Slider; 18. Lattice-type transmission rod; 19. First front pin; 20. Window sash; 21. Window seat; 22. Base; 23. Actuator; 24. Push rod; 25. Rear pin; 26. Support frame; 27. Gas spring; 28. Rotating component; 29. ​​Second front pin. Detailed Implementation

[0027] To further illustrate the technical means and effects adopted by the present invention to achieve its intended purpose, the specific implementation methods, structures, features, and effects of the present invention will be clearly and completely described below in conjunction with the accompanying drawings and preferred embodiments. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0028] In the description of this application, it should be understood that the orientation or positional relationship indicated by terms such as "inner" and "outer" are based on the orientation or position shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, a specific orientation structure and operation, and therefore should not be construed as a limitation of this application.

[0029] Example 1:

[0030] Reference Figure 1 and Figure 2 This invention discloses a multi-point locking device for doors and windows, comprising a base 22, a support frame 26 mounted on the base 22, a window seat 21 and a window sash 20 mounted on the base 22. The window sash 20 and the window seat 21 are rotatably connected by a rotating component 28, which is a hinge or latch. The support frame 26 is square and fixedly mounted on the bottom of the base 22. The window seat 21 supports the window sash 20. It also includes a locking assembly and a truss-type transmission assembly, which are rotatably connected. Two gas springs 27 are fixedly mounted on both sides of the window sash 20, with the ends of the two gas springs 27 away from the window sash 20 fixedly connected to the base 22. The lattice-type transmission rod 18 is welded from seven rectangular metal tubes, which are two long horizontal rods, three short vertical rods, and two diagonal rods, forming a rectangular structure.

[0031] Reference Figure 1 and Figure 5 The locking assembly is provided with two locking hooks 13, one end of which is hook-shaped. The two locking hooks 13 are located at both ends of the horizontal bar near the opening side of the lattice transmission rod.

[0032] Reference Figure 2 and Figure 5 The end of the truss-type transmission component away from the locking component is rotatably connected to the support frame 26. The truss-type transmission component is detachably mounted on the window sash 20. Two latch mounting brackets 11 are detachably mounted on the base 22. Each latch mounting bracket 11 is detachably mounted with a latch 10. The latch 10 is a U-shaped latch, and each latch 10 matches its corresponding latch hook 13.

[0033] The window sash 20 is detachably equipped with a rear mounting bracket 15 and two front mounting brackets 12. The rear mounting bracket 15 is detachably connected to the window sash 20. The lattice-type transmission rod 18 is connected to the two locking hooks 13 through the second front pin 29. Each locking hook 13 is connected to its corresponding front mounting bracket 12 through the first front pin 19. Each first front pin 19 is equipped with a locking hook reset torsion spring 14. The rear mounting bracket 15 is provided with a waist-shaped hole 16.

[0034] Reference Figure 2 and Figure 4 A slider 17 is fixedly installed at one end of the lattice-type transmission rod 18 near the rear mounting bracket 15. The lattice-type transmission rod and the slider are welded together. A first through hole with a diameter equal to that of the rear pin 25 is opened on the slider 17. The rear pin 25 is set in the first through hole. The slider 17 is connected to the rear mounting bracket and the push rod 24 through the rear pin 25. The rear pin 25 is used to slide in the waist-shaped hole 16.

[0035] Reference Figure 3 The truss-type transmission assembly also includes an actuator 23 and a push rod 24. The push rod 24 is located inside the window opener 23. The end of the push rod 24 near the slider 17 has a second through hole with a diameter equal to that of the rear pin 25. The rear pin 25 is located in the first through hole and the second through hole and is used to slide in the waist-shaped hole 16. The end of the actuator 23 away from the slider 17 is connected to the support frame 26, and the end of the push rod 24 away from the actuator 23 is connected to the slider 17. The actuator 23 can be pneumatically, electrically, hydraulically, or manually driven.

[0036] Example 2:

[0037] Reference Figure 6 A multi-point locking device for doors and windows differs from Embodiment 1 in that it has three locking hooks 13 on the locking assembly. The three locking hooks 13 are connected to three corresponding front mounting brackets 12. The front mounting brackets 12 are detachably mounted on the window sash 20. Three latch mounting brackets 11 are detachably mounted on the base 22. The three latch mounting brackets 11 are connected to three corresponding U-shaped latches 10. The three locking hooks 13 are located at both ends and the middle of the horizontal long bar near the opening side of the lattice transmission rod 18.

[0038] The working principle and usage process of this invention are as follows: When the window sash 20 needs to be opened, the actuator 23 is activated, the push rod 24 in the actuator 23 extends, and the rear pin 25 on the push rod 24 pushes the slider 17 forward along the waist-shaped hole 16 of the rear mounting bracket 15, so that the lattice transmission rod 18 moves forward synchronously. The lattice transmission rod 18 drives multiple locking hooks 13 to rotate counterclockwise synchronously, so that multiple locking hooks 13 disengage from the latch 10 synchronously, thereby realizing the synchronous unlocking function. After the locking hooks are unlocked, the push rod 24 continues to extend, the window sash 20 rotates counterclockwise along the rotating member 28, and the gas springs 27 on both sides extend as the window sash 20 rotates counterclockwise, supporting the opening of the window sash 20.

[0039] When the window sash 20 needs to be closed, the actuator 23 is closed, and the push rod 24 in the actuator 23 retracts, pulling the window sash 20 to rotate clockwise along the rotating member 28, causing the window sash 20 to gradually close. At the same time, the gas springs 27 on both sides of the window sash 20 retract as the window sash 20 rotates clockwise. During the closing process of the window sash 20, the lock hook reset torsion spring 14 uses its own elasticity to keep the multiple lock hooks 13 in the counterclockwise rotation state when they are open, that is, the multiple lock hooks 13 are always in the unlocked state. When the window sash 20 is fully closed clockwise, that is, after the window sash 20 and the window seat 21 are closed, the rear pin 25 on the push rod 24 continues to pull the slider 17 to move backward along the waist-shaped hole 16 of the rear mounting bracket 15, so that the lattice transmission rod 18 moves backward synchronously. The lattice transmission rod 18 then drives multiple locking hooks 13 to overcome the elastic force of the locking hook reset torsion spring 14 and rotate clockwise, so that multiple locking hooks 13 simultaneously hook and lock the latch 10, thereby realizing the synchronous locking function.

[0040] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A multi-point locking device for doors and windows, comprising a base, a support frame disposed on the base, a window seat and a window sash disposed on the base, wherein the window sash and the window seat are rotatably connected, characterized in that: It also includes a locking assembly and a truss-type transmission assembly. The locking assembly consists of multiple sets of locking hooks and latches, and the truss-type transmission assembly and the locking assembly are rotatably connected. The truss-type transmission assembly includes a set of lattice-type transmission rods, a slider, a rear pin, a rear mounting bracket, and a push rod. The end of the truss-type transmission assembly away from the locking assembly is rotatably connected to the support frame. The truss-type transmission assembly is detachably mounted on the window sash. Multiple latch mounting brackets are detachably mounted on the base, and each latch mounting bracket is detachably mounted with a latch, which matches the lock hook. The window sash is detachably provided with one rear mounting bracket and multiple front mounting brackets. The rear mounting bracket is detachably connected to the window sash, and the front mounting bracket is detachably connected to the window sash. The lattice-type transmission rod is connected to multiple locking hooks through a second front pin. The locking hook is connected to the front mounting bracket through a first front pin. The first front pin is provided with a locking hook return torsion spring. The rear mounting bracket is provided with a waist-shaped hole. The lattice-type transmission rod is welded from seven rectangular metal tubes. The seven rectangular metal tubes are two horizontal long rods, three vertical short rods, and two diagonal rods. The entire lattice-type transmission rod has a rectangular structure. The lattice-type transmission rod is welded to the slider at one end near the rear mounting bracket. The slider is located inside the rear mounting bracket and has a first through hole. The front end of the push rod is located inside the slider and has a second through hole at its front end. The rear mounting bracket has an oblong hole. The rear pin passes through the oblong hole, the first through hole, and the second through hole, connecting the front end of the push rod, the slider, and the rear mounting bracket into one unit, and can slide back and forth within the oblong hole of the rear mounting bracket.

2. The multi-point locking device for doors and windows according to claim 1, characterized in that: The truss-type transmission assembly also includes an actuator, with the push rod located inside the actuator, the push rod being used to push the slider and the lattice-type transmission rod to slide forward or backward.

3. The multi-point locking device for doors and windows according to claim 1, characterized in that: Two gas springs are provided on both sides of the window sash, and the ends of the two gas springs away from the window sash are rotatably connected to the base.

4. The multi-point locking device for doors and windows according to claim 1, characterized in that: The window sash and the window seat are connected by a rotating component.

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