Hidden anti-misoperation and anti-theft device for casement window
By designing concealed anti-misoperation and anti-theft devices, and utilizing the coordination of linkage rods and control devices, the problems of low control accuracy and external controllability of casement windows have been solved, thus achieving reliable anti-misoperation and anti-theft functions.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- SICHUAN OBOL TECH CO LTD
- Filing Date
- 2023-07-31
- Publication Date
- 2026-05-12
AI Technical Summary
Existing anti-misoperation and anti-theft devices for casement windows suffer from low control precision, susceptibility to errors, and external controllability, affecting normal use and anti-theft functionality.
Design a concealed anti-misoperation and anti-theft device, including a linkage rod, a main control device and an auxiliary control device. Through the cooperation of the linkage rod control section, the slot and the moving seat, ensure that the handle cannot be rotated when the window sash is open outward and in the open position, so as to realize the anti-misoperation function and avoid external control through concealed installation.
It achieves reliable anti-misoperation of the handle in both outward-opening and suspended states of the casement window, avoiding device malfunction and external control, and ensuring the normal use and anti-theft function of the product.
Smart Images
Figure CN118008047B_ABST
Abstract
Description
Technical Field
[0001] This invention belongs to the field of casement window manufacturing technology, specifically relating to a casement window anti-misoperation and anti-theft device, and more particularly to a concealed anti-misoperation and anti-theft device for casement windows. Background Technology
[0002] Casement windows are a general term for windows that can be opened and closed by both horizontal and vertical rotation. Functionally, they can be divided into four basic types: outward-opening top-hung, outward-opening bottom-hung, inward-opening top-hung, and inward-opening bottom-hung. However, based on practical application needs, outward-opening top-hung windows and inward-opening bottom-hung windows are the two mainstream casement window types on the market. Among them, outward-opening top-hung windows have two opening methods: one side rotates outward to open and the bottom rotates outward to open. In practical applications, they are often mistakenly referred to as outward-opening bottom-hung windows. However, according to relevant industry standards, outward-opening top-hung windows with the rotating hinge (usually part of the upper support component) at the top are called outward-opening top-hung windows, not outward-opening bottom-hung windows. Inward-opening bottom-hung windows have two opening methods: one side rotates inward to open and the top rotates inward to open. In practical applications, they are often referred to as inward-opening tilt-and-turn windows.
[0003] like Figure 1 and Figure 2 As shown, taking an outward-opening top-hung window as an example, it includes a window frame 3 and a window sash 1. A handle 2 is installed on one side of the window sash 1 (some handles 2 are also installed on the lower side of the window sash 1). A transmission assembly (not marked in the figure, a conventional structure) connected to the handle 2 is installed on the side of the window sash 1 near the handle 2. An upper support assembly (not marked in the figure) is installed on the upper side of the window sash 1, and the upper support assembly is also connected to the upper side of the window frame 3. A lower support assembly (not visible in the figure) is installed on the lower side of the window sash 1, and the lower support assembly is also connected to the lower side of the window frame 3. The upper end of the transmission assembly is connected to the upper support assembly and achieves a 90° rotation transmission function through an elastic strip (not marked in the figure, a conventional structure). The lower end of the transmission assembly is connected to the lower support assembly and achieves a 90° rotation transmission function through an elastic strip. When the handle 2 is rotated, the transmission assembly controls the movement of the upper support assembly and the lower support assembly to achieve the corresponding outward opening (e.g., Figure 1 As shown), open (as shown) Figure 2 The window sash 1 has a locking function (not shown in the figure) and a closing function (not shown in the figure). Generally, when handle 2 is in the downward position, the window sash 1 is closed and locked to the window frame 3, i.e., in the locked state (not shown in the figure). When handle 2 is in the horizontal position, the window sash 1 is in the unlocked state, at which point the handle side of the window sash 1 can be rotated outwards to open (e.g., outward opening). Figure 1 As shown), when handle 2 is in the upward position, window sash 1 is in the unlocked position. At this time, the lower side of window sash 1 can be rotated outward to open, i.e., to open (as shown). Figure 2 (As shown). The inward-opening tilt-and-turn window (i.e., the inward-opening tilt-and-turn window) has a similar structure and working principle as described above, and will not be repeated here.
[0004] Currently, casement windows have two opening methods: casement and awning. This presents two problems: First, there's the issue of preventing accidental operation. When the window is in either casement or awning position, if someone rotates the handle, the window's opening and closing control structure may malfunction, preventing normal operation. Professional readjustment is required before normal use. Second, there's the issue of theft prevention. While the awning method itself provides theft prevention, if someone outside can rotate the handle to open the window, the theft prevention function is lost.
[0005] To address the aforementioned issues, the traditional solution is to install an anti-misoperation and anti-theft device on the side of the window sash opposite the casement hinge. This anti-misoperation and anti-theft device uses a vertical, angled spring control. When the window sash is in either the casement or open position, the user locks the anti-misoperation and anti-theft device, preventing the user from rotating the handle. Only after the anti-misoperation and anti-theft device is unlocked can the user rotate the handle, thus achieving the functions of preventing misoperation and theft.
[0006] The aforementioned traditional anti-misoperation and anti-theft devices have the following drawbacks: First, the transmission rod used in these devices has a large range of motion and low control precision, and the vertical angled locking point is small. When the transmission mechanism is pulled forcefully by the handle, the angled locking point is in a severely tense state. If the spring slightly yields or springs back, the transmission mechanism becomes disordered, thus losing its anti-misoperation function. It can only be opened and closed normally after being adjusted back to its original state. Once the anti-misoperation and anti-theft device malfunctions, the manufacturer needs to send someone to repair it, which is very time-consuming and labor-intensive and affects the normal use of the product. Second, since these anti-misoperation and anti-theft devices can only be installed on the vertical side of the window sash, anyone outside who knows the control method can unlock it from the outside in any open state, thus losing the anti-theft function. Summary of the Invention
[0007] The purpose of this invention is to provide a concealed anti-misoperation and anti-theft device for casement windows that is easy to install discreetly, has precise control, and does not cause errors, in order to solve the above-mentioned problems.
[0008] The present invention achieves the above objectives through the following technical solutions:
[0009] A concealed anti-misoperation and anti-theft device for a casement window includes a linkage rod installed on the window sash and connected to the handle of the casement window via a transmission device. It also includes a main control device installed on the window sash and an auxiliary control device installed on the window frame. The linkage rod has a control section in its middle section, and the control section has a first and a second slot spaced axially along the linkage rod. The first and second slots are respectively radially connected along the linkage rod. The main control device includes a compression spring, a movable base, and a main control box. The main control box is installed on the window sash, and the movable base is placed inside the main control box. A telescopic tongue plate extending out of the main control box is provided at the first end of the movable base, and the compression spring is located at the second end of the movable base. The movable seat has an elastic force that allows it to move towards its first end. The line connecting the two ends of the movable seat is perpendicular to the axis of the linkage rod. The movable seat has a movable through groove that extends in a direction parallel to the axis of the linkage rod. The control section of the linkage rod can be placed in the movable through groove and can move in the axis of the linkage rod. The movable seat has a movable segment near the movable through groove. The width of the movable segment in the axis of the linkage rod is smaller than the width of the first slot and the width of the second slot. The movable segment is located between the movable through groove and the second end of the movable seat, and one end face of the movable segment is one side wall surface of the movable through groove. The auxiliary control device includes a fixed seat. The fixed seat has a baffle corresponding to the telescopic tongue plate at one end near the main control device.
[0010] Preferably, in order to limit the movement range of the movable seat and facilitate processing, the movable seat is provided with a limiting groove, the limiting groove is through a direction parallel to the axial direction of the linkage rod, and the moving through groove and the moving segment are both located in the limiting groove.
[0011] Preferably, in order to facilitate installation and to make more reliable adjustment of the movement limit position of the movable seat, the second end of the movable seat is connected to a compression spring mounting post by a thread. The compression spring is fitted outside the compression spring mounting post. The length of the compression spring mounting post is less than the normal length of the compression spring. The outer end face of the compression spring mounting post is provided with an internal hexagon countersunk hole.
[0012] Preferably, for ease of installation and reliable operation, the main control box has an opening on one side connected to the window sash, and the two side walls of the main control box are provided with main control box through slots at positions corresponding to the control section of the linkage rod. The control section of the linkage rod passes through the main control box through slots, and the compression spring mounting post extends out of the main control box through the corresponding notch on the main control box.
[0013] Preferably, in order to facilitate installation and achieve reliable operation, the auxiliary control device further includes an auxiliary control box, on which the side connected to the window frame and the end near the main control device are both open, the fixing seat is placed inside the auxiliary control box and the baffle extends out of the open end of the auxiliary control box.
[0014] Preferably, to ensure a greater extension distance of the telescopic tongue plate when the movable seat rotates at a small angle, thereby reliably blocking the linkage rod, the auxiliary control device further includes an elastic plate. The fixed seat has a C-shaped limiting groove, and the C-shaped elastic plate is placed within the limiting groove. A baffle is located at the first end of the elastic plate. A first driven plate and a second driven plate are sequentially arranged on the elastic plate near the second end of the two ends. The first driven plate is located between the second end of the elastic plate and the second driven plate. Both the first and second driven plates extend beyond the opening of the auxiliary control box. A drive plate is located on the outer wall of the main control box near the auxiliary control box, between the first and second driven plates. The drive plate can drive either the first or second driven plate to move when rotating with the main control box. The elastic plate can be made of a material selected as needed, and can be integrally formed with the baffle, the first driven plate, and the second driven plate, or they can be connected to each other.
[0015] Preferably, in order to enable a more sensitive driving function between the drive plate and the first and second driven plates, the surface of the second driven plate near the first driven plate is inclined, and the inclined surface makes the end thickness of the second driven plate less than the root thickness.
[0016] Preferably, to better achieve anti-theft and anti-misoperation functions, both the linkage rod and the main control device are installed on the end of the casement window corresponding to its opening hinge. Specifically, both the linkage rod and the main control device are installed on the upper outer wall of the window sash of an outward-opening top-hung window, with the linkage rod located below the main control device, and the auxiliary control device installed on the upper inner wall of the window frame; or, both the linkage rod and the main control device are installed on the lower outer wall of the window sash of an inward-opening bottom-hung window, with the linkage rod located above the main control device, and the auxiliary control device installed on the lower inner wall of the window frame.
[0017] The beneficial effects of this invention are as follows:
[0018] This invention, through the design of a cooperating linkage control section, a main control device, and an auxiliary control device, enables a casement window to achieve the following functions: When the casement window handle is in the locked state (generally vertically downward), the linkage control section and the main control device do not affect each other, and the linkage can move freely; when the casement window handle is in the outward-opening unlocked state (generally horizontally), one of the slots in the linkage control section corresponds to the moving section of the moving seat of the main control device. At this time, the moving section can move in the direction of the line connecting the two ends of the moving seat, so the window sash can be opened smoothly outward. After the window sash is opened outward (the outward opening angle only needs to exceed a very small limit angle), under the action of the compression spring, the moving seat moves towards the auxiliary control device, so that the moving section passes through the corresponding slot of the linkage control section. At this time, the linkage cannot move, ensuring that the handle cannot rotate in the outward-opening state of the window sash, realizing the anti-misoperation function; when the casement window handle is in the locked state (generally vertically downward), one of the slots in the main control device corresponds to the moving section of the main control device, and the moving section can move in the direction of the line connecting the two ends of the moving seat, so that the window sash can be opened smoothly. When the window sash is opened outward (generally horizontally), one of the slots in the main control device corresponds to the moving section of the main control device, and the moving section can move in the direction of the line connecting the main control device, so that the moving section can move in the direction of the line connecting ... When the window handle is in the open position (generally vertically upward), another slot in the linkage control section corresponds to the moving section of the main control device's moving seat. At this time, the moving section can move in the direction of the line connecting the two ends of the moving seat, so the window sash can be smoothly opened. After the window sash is opened (the opening angle only needs to exceed a very small limit angle), under the action of the compression spring, the moving seat moves towards the auxiliary control device, so that the moving section passes through the corresponding slot in the linkage control section. At this time, the linkage cannot move, ensuring that the handle cannot rotate in the open window sash state, thus realizing the anti-misoperation function. In summary, this invention can realize a reliable anti-misoperation function that prevents the handle from rotating in both the outward opening and open states of a casement window, and allows the handle to rotate only after the window sash is completely closed. No manual adjustment or intervention is required, effectively avoiding the problem of the anti-misoperation function malfunction requiring the manufacturer to send personnel for repair, which is time-consuming, labor-intensive, and affects the normal use of the product. All components of this invention can be installed on the hinge end of a casement window. When the casement window is in the open position, its opening angle is small, and the components of this invention are relatively concealed. People outside cannot access the components of this invention. Especially when used for outward-opening top-hung windows, the components of this invention cannot be controlled by people outside. Therefore, people outside cannot control the components of this invention to make the window sash open when it is in the open position, thus achieving a reliable anti-theft function. Attached Figure Description
[0019] Figure 1 This is one of the three-dimensional structural diagrams of an outward-opening top-hung window, with the window sash in the outward-opening position.
[0020] Figure 2 This is the second three-dimensional structural diagram of an outward-opening top-hung window, with the window sash in the open position.
[0021] Figure 3 This is one of the three-dimensional structural diagrams of the concealed anti-misoperation and anti-theft device for casement windows described in this invention, with the corresponding casement window sash in the closed state;
[0022] Figure 4 This is the second three-dimensional structural schematic diagram of the concealed anti-misoperation and anti-theft device for casement windows described in this invention, and... Figure 1 From different perspectives, the corresponding casement window sash is in the closed state;
[0023] Figure 5 This is the third three-dimensional structural schematic diagram of the concealed anti-misoperation and anti-theft device for casement windows described in this invention, and... Figure 1 and Figure 2 From different perspectives, the corresponding casement window sash is in the closed state;
[0024] Figure 6 This is a three-dimensional structural diagram of the linkage rod of the concealed anti-misoperation and anti-theft device for casement windows described in this invention;
[0025] Figure 7 This is a three-dimensional structural diagram of the movable base and compression spring of the concealed anti-misoperation and anti-theft device for casement windows described in this invention;
[0026] Figure 8 This is a three-dimensional structural diagram of the main control box of the concealed anti-misoperation and anti-theft device for casement windows described in this invention.
[0027] Figure 9 This is a three-dimensional structural diagram of the mounting base of the concealed anti-misoperation and anti-theft device for casement windows described in this invention.
[0028] Figure 10 This is one of the three-dimensional structural diagrams of the concealed anti-misoperation and anti-theft device for casement windows described in this invention after removing the auxiliary control box, with the corresponding casement window sash in the closed state;
[0029] Figure 11 This is one of the three-dimensional structural diagrams of the concealed anti-misoperation and anti-theft device for casement windows described in this invention, with the window sash of the corresponding casement window in the outward opening state.
[0030] Figure 12 This is the second three-dimensional structural diagram of the concealed anti-misoperation and anti-theft device for casement windows described in this invention, with the window sash of the corresponding casement window in the open state. Detailed Implementation
[0031] The present invention will be further described below with reference to the accompanying drawings:
[0032] like Figures 3-12 As shown, the concealed anti-misoperation and anti-theft device for casement windows of the present invention includes a window sash installed in the casement window (see reference). Figure 1 and Figure 2The window sash 1) is connected to the handle of the casement window (reference) via a transmission device. Figure 1 and Figure 2 The handle 2) is connected to the linkage rod 11, and also includes a main control device installed on the window sash of the casement window and a window frame installed on the casement window (see reference). Figure 1 and Figure 2 The auxiliary control device on the window frame 3) has a protruding linkage control section 10 in the middle section of the linkage rod 11. The linkage control section 10 has a first slot 16 and a second slot 21 arranged axially at intervals on the linkage rod 11. The first slot 16 and the second slot 21 are respectively radially connected to the linkage rod 11. The main control device includes a compression spring 4, a moving seat 20 and a main control box 6. The main control box 6 is installed on the window sash. The moving seat 20 is placed inside the main control box 6. The first end of the moving seat 20 has a telescopic tongue 18 that can extend out of the main control box 6. The compression spring 4 is located at the second end of the moving seat 20 and gives the moving seat 20 an elastic force to move towards its first end. The line connecting the two ends of the moving seat 20 is perpendicular to the linkage rod 11. The axes of the linkage rod 11 are perpendicular to each other. The movable seat 20 is provided with a movable through groove 9. The movable through groove 9 is through a direction parallel to the axis of the linkage rod 11. The linkage rod control section 10 can be placed in the movable through groove 9 and can move in the axis of the linkage rod 11. The movable seat 20 is provided with a movable section 19 near the movable through groove 9. The width of the movable section 19 in the axis of the linkage rod 11 is smaller than the width of the first slot 16 and the width of the second slot 21. The movable section 19 is located between the movable through groove 9 and the second end of the movable seat 20, and one end face of the movable section 19 is the side wall surface of the movable through groove 9. The auxiliary control device includes a fixed seat 12. The fixed seat 12 is provided with a baffle 17 corresponding to the telescopic tongue plate 18 at one end near the main control device.
[0033] like Figures 3-12 As shown, the present invention also discloses the following more optimized specific structures:
[0034] In order to limit the movement range of the movable seat 20 and facilitate processing, the movable seat 20 is provided with a limiting groove 23. The limiting groove 23 is parallel to the axial direction of the linkage rod 11, and the moving through groove 9 and the moving section 19 are both located in the limiting groove 23.
[0035] To facilitate installation and to make more reliable adjustment of the movement limit position of the movable base 20, the second end of the movable base 20 is connected to a spring mounting post 5 by a thread. The spring 4 is fitted outside the spring mounting post 5. The length of the spring mounting post 5 is less than the normal length of the spring 4. The outer end face of the spring mounting post 5 is provided with an internal hexagon countersunk hole.
[0036] To facilitate installation and ensure reliable operation, the main control box 6 has an opening on one side connected to the window sash. The two side walls of the main control box 6 are provided with main control box through slots 8 at positions corresponding to the linkage rod control section 10. The linkage rod control section 10 passes through the main control box through slots 8, and the compression spring mounting post 5 extends out of the main control box 6 through the corresponding notch on the main control box 6.
[0037] To facilitate installation and ensure reliable operation, the auxiliary control device also includes an auxiliary control box 14. The auxiliary control box 14 has an opening on one side connected to the window frame and another end near the main control device. The fixing seat 12 is placed inside the auxiliary control box 14 and the baffle 17 extends out of the opening end of the auxiliary control box 14.
[0038] In order to enable the telescopic tongue plate 18 to extend a greater distance when the movable seat 20 rotates at a small angle, thereby achieving a reliable blocking function for the linkage rod 11, the auxiliary control device also includes an elastic plate 25. The fixed seat 12 is provided with a "C"-shaped limiting groove 24, and the "C"-shaped elastic plate 25 is placed in the limiting groove 24. The baffle 17 is provided at the first end of the two ends of the elastic plate 25. A first driven plate 27 and a second driven plate 26 are provided in sequence near the second end of the two ends of the elastic plate 25. The first driven plate 27 is located between the second end of the elastic plate 25 and the second driven plate 26. Both the first driven plate 27 and the second driven plate 26 extend out of the opening end of the auxiliary control box 14. A drive plate 28 is provided on the outer wall of the main control box 6 near the auxiliary control box 14. The drive plate 28 is located between the first driven plate 27 and the second driven plate 26. When the drive plate 28 rotates with the main control box 6, it can drive the first driven plate 27 or the second driven plate 26 to move.
[0039] In order to enable the drive plate 28 to have a more sensitive drive function with the first driven plate 27 and the second driven plate 26, the surface of the second driven plate 26 near the first driven plate 27 is inclined, and the inclined surface makes the end thickness of the second driven plate 26 less than the root thickness.
[0040] To better achieve anti-theft and anti-misoperation functions, both the linkage rod 11 and the main control device are installed on the end of the casement window corresponding to its opening hinge. Specifically, both the linkage rod 11 and the main control device are installed on the window sash of the outward-opening top-hung window (see reference). Figure 1 and Figure 2 The auxiliary control device is installed on the upper outer wall of the window frame (reference). The linkage rod 11 is located below the main control device. Figure 1 and Figure 2 Alternatively, the linkage rod 11 and the main control device are both installed on the lower outer wall of the window sash of the inward-opening bottom-hung window, with the linkage rod 11 located above the main control device and the auxiliary control device installed on the lower inner wall of the window frame.
[0041] Figures 3-5, Figure 8 , Figure 10 and Figure 12 The main control box mounting plate 7 is also shown on the open side wall of the main control box 6. Figures 3-5 , Figure 11 and Figure 12 The auxiliary control box mounting plate 13 is also shown on the side wall of the opening of the auxiliary control box 14. Figures 3-6 , Figures 10-12 The connecting racks 15 located at both ends of the linkage 11 are also shown; both are conventional adaptive structures.
[0042] Combination Figures 1-12 In application, taking the concealed anti-misoperation and anti-theft device for casement windows described in this invention installed on an outward-opening top-hung window as an example, the linkage rod 11 and the main control device are both installed on the upper outer wall of the window sash 1 of the outward-opening top-hung window. The linkage rod 11 is located below the main control device. One end of the linkage rod 11 is connected to the transmission device through the connecting rack 15, thereby realizing the transmission connection with the handle 2. The auxiliary control device is installed on the upper inner wall of the window frame 3. When the window sash 1 is in the closed state, the telescopic tongue plate 18 on the moving seat 20 is abutted by the baffle 17 on the fixed seat 12, compressing the compression spring 4 and making the moving through groove 9 on the moving seat 20 correspond exactly to the linkage rod 11. The control section 10 of the linkage rod can slide in the moving through groove 9. At this time, this device does not limit the position of the linkage rod 11, and the handle 2 can be rotated as needed. If the user To lock window sash 1, rotate handle 2 downwards to make it vertical, at which point window sash 1 cannot be opened. If the user wants to open window sash 1 outwards, rotate handle 2 upwards to make it horizontal. At this time, the first slot 16 (or the second slot 21) on the linkage control section 10 corresponds to the moving section 19 on the moving seat 20. The moving seat 20 can move relative to the linkage rod 11. At this time, the user can open window sash 1 outwards. After window sash 1 is opened outwards (the opening angle can exceed a very small limit angle), under the action of the compression spring 4, the moving seat 20 moves towards the auxiliary control device, so that the moving section 19 passes through the corresponding slot of the linkage control section 10. At this time, the linkage rod 11 can no longer move axially, thus ensuring that handle 2 cannot be rotated when window sash 1 is in the outward-open state (rotation in any direction is not possible), realizing the anti-misoperation function.
[0043] To enable the handle 2 to rotate, the window sash 1 must first be closed to the correct position. The telescopic tongue 18 on the movable seat 20 is then blocked by the baffle 17 on the fixed seat 12. At this time, the handle 2 can rotate up or down as needed.
[0044] If the user wants to open window sash 1, they rotate handle 2 upwards to make it vertically upwards. At this time, the second slot 21 (or the first slot 16) on the linkage control section 10 corresponds to the moving section 19 on the moving seat 20. The moving seat 20 can move relative to the linkage rod 11. At this time, the user can rotate the lower end of window sash 1 outwards to open it, i.e., open it. After window sash 1 is opened (the opening angle can exceed a very small limit angle), under the action of the compression spring 4, the moving seat 20 moves towards the auxiliary control device, so that the moving section 19 passes through the corresponding slot of the linkage control section 10. At this time, the linkage rod 11 can no longer move axially, thus ensuring that handle 2 cannot be rotated when window sash 1 is in the outward-open state (rotation in any direction is not possible), realizing the anti-misoperation function. In this state, people outside cannot control the components of this invention, so they cannot unlock the state and cannot open window sash 1 outwards while it is open by rotating handle 2, thus realizing the anti-theft function.
[0045] During the suspension process, the drive plate 28 rotates and pushes the first driven plate 27 to move. Through the elastic sheet 25, the baffle 17 is driven to retract into the auxiliary control box 14, leaving more space for the telescopic tongue plate 18 to extend. This increases the length of the moving section 19 passing through the corresponding slot of the linkage control section 10, thereby achieving a more reliable locking function. This prevents the moving section 19 from overlapping with the corresponding slot of the linkage control section 10 due to the small moving distance of the moving seat 20. In this case, the linkage rod 11 could be moved even when the handle 2 is rotated forcefully, resulting in the loss of the anti-misoperation function and potential damage to the corresponding components.
[0046] If you want the handle 2 to rotate downwards, you need to close the window sash 1 to the correct position first. The telescopic tongue 18 on the moving seat 20 will be blocked by the baffle 17 on the fixed seat 12 again. At this time, the handle 2 can rotate downwards to return to the desired outward opening position or lock the desired position.
[0047] The above embodiments are merely preferred embodiments of the present invention and are not intended to limit the technical solutions of the present invention. Any technical solution that can be implemented based on the above embodiments without creative effort should be considered to fall within the scope of protection of the patent of the present invention.
Claims
1. A concealed anti-misoperation and anti-theft device for a casement window, comprising a linkage rod installed on the window sash of the casement window and connected to the handle of the casement window via a transmission device, characterized in that: It also includes a main control device installed on the window sash of the casement window and an auxiliary control device installed on the window frame of the casement window. The middle section of the linkage rod has a linkage rod control section, on which a first slot and a second slot are arranged axially at intervals along the linkage rod. The first slot and the second slot respectively pass through the radial direction of the linkage rod. The main control device includes a compression spring, a movable base, and a main control box. The main control box is installed on the window sash, and the movable base is placed inside the main control box. A first end of the movable base has a telescopic tongue that can extend out of the main control box. The compression spring is located at the second end of the movable base and provides elastic force for the movable base to move towards its first end. The connecting line direction is perpendicular to the axis of the linkage rod. The movable seat is provided with a movable through groove, which extends in a direction parallel to the axis of the linkage rod. The control section of the linkage rod can be placed in the movable through groove and can move in the axis of the linkage rod. The movable seat is provided with a movable segment near the movable through groove. The width of the movable segment in the axis of the linkage rod is smaller than the width of the first slot and the width of the second slot. The movable segment is located between the movable through groove and the second end of the movable seat, and one end face of the movable segment is the side wall surface of the movable through groove. The auxiliary control device includes a fixed seat. The fixed seat is provided with a baffle corresponding to the telescopic tongue plate at one end near the main control device.
2. The concealed anti-misoperation and anti-theft device for casement windows according to claim 1, characterized in that: The movable seat is provided with a limiting groove, which extends through the linkage rod in a direction parallel to its axial direction. Both the movable through groove and the movable section are located within the limiting groove.
3. The concealed anti-misoperation and anti-theft device for casement windows according to claim 1, characterized in that: The second end of the movable base is connected to a compression spring mounting post by a thread. The compression spring is fitted outside the compression spring mounting post. The length of the compression spring mounting post is less than the normal length of the compression spring. The outer end face of the compression spring mounting post is provided with an internal hexagon countersunk hole.
4. The concealed anti-misoperation and anti-theft device for casement windows according to claim 3, characterized in that: The main control box has an opening on one side that connects to the window sash. The two side walls of the main control box are provided with main control box through slots at positions corresponding to the control section of the linkage rod. The control section of the linkage rod passes through the main control box through slots, and the compression spring mounting post extends out of the main control box through a corresponding notch on the main control box.
5. The concealed anti-misoperation and anti-theft device for casement windows according to any one of claims 1-4, characterized in that: The auxiliary control device also includes an auxiliary control box, which has an opening on one side connected to the window frame and another end near the main control device. The fixing seat is placed inside the auxiliary control box and the baffle extends out of the opening end of the auxiliary control box.
6. The concealed anti-misoperation and anti-theft device for casement windows according to claim 5, characterized in that: The auxiliary control device also includes an elastic sheet. The fixed base is provided with a "C"-shaped limiting groove. The "C"-shaped elastic sheet is placed in the limiting groove. The baffle is provided at the first end of the two ends of the elastic sheet. A first driven plate and a second driven plate are sequentially provided on the elastic sheet near the second end of the two ends. The first driven plate is located between the second end of the elastic sheet and the second driven plate. Both the first driven plate and the second driven plate extend out of the opening end of the auxiliary control box. A drive plate is provided on the outer wall of the main control box near the auxiliary control box. The drive plate is located between the first driven plate and the second driven plate. When the drive plate rotates with the main control box, it can drive the first driven plate or the second driven plate to move.
7. The concealed anti-misoperation and anti-theft device for casement windows according to claim 6, characterized in that: The surface of the second driven plate near the first driven plate is inclined, and the inclined surface makes the end thickness of the second driven plate less than the root thickness.
8. The concealed anti-misoperation and anti-theft device for casement windows according to any one of claims 1-4, characterized in that: Both the linkage rod and the main control device are installed on the casement window at the end corresponding to its opening hinge.