CN118008047A - Concealed misoperation and theft prevention device for casement window - Google Patents

Abstract

The invention discloses a concealed anti-theft and misoperation prevention device for a casement window, which comprises a linkage rod, a main control device and an auxiliary control device, wherein the middle section of the linkage rod is provided with a linkage rod control section, the linkage rod control section is provided with a first clamping groove and a second clamping groove, the main control device comprises a pressure spring, a movable seat and a main control box, the movable seat is provided with a telescopic tongue plate, the pressure spring enables the movable seat to have elasticity, the movable seat is provided with a movable through groove, the linkage rod control section can be placed in the movable through groove, the movable seat is provided with a movable section, the width of the movable section is smaller than the width of the first clamping groove and the width of the second clamping groove, the auxiliary control device comprises a fixed seat, and a baffle plate corresponding to the telescopic tongue plate is arranged on the fixed seat. The invention can realize the reliable misoperation preventing function that the handle can not rotate under the two states of outward opening and outward opening of the casement window and can rotate after the window sash is completely closed, thereby avoiding the problems that the misoperation preventing function is disordered, the maintenance is required by manufacturers, the time and the labor are wasted, and the normal use of products is influenced.

Description

Concealed misoperation and theft prevention device for casement window

Technical Field

The invention belongs to the technical field of production of casement window, and particularly relates to an anti-misoperation and anti-theft device for a casement window, in particular to a concealed anti-misoperation and anti-theft device for a casement window.

Background

The casement window is a general term for windows which can be opened and closed in a horizontal rotation mode and can be opened and closed in a vertical rotation mode, and four basic forms of outward opening upper suspension, outward opening lower suspension, inward opening upper suspension and inward opening lower suspension can be distinguished from functions, but according to actual application requirements, the outward opening upper suspension window and the inward opening lower suspension window are two main stream casement windows on the market. The outward-opening upper-hung window has two opening modes of outward-rotating side-by-side opening and outward-rotating lower-part opening, which are also commonly referred to as outward-opening lower-hung window in practical application, but according to relevant industry standards, the outward-opening upper-hung window at the upper end of the rotary hinge (which is generally a part of the upper supporting component) is referred to as outward-opening upper-hung window, rather than outward-opening lower-hung window; the inwardly opened lower hung window has two opening modes of one side inwardly rotated flat-open and the upper portion inwardly rotated hanging, and is also commonly called as an inwardly opened inverted window in practical application.

As shown in fig. 1 and 2, taking an example of a top-hung window, the top-hung window comprises a window frame 3 and a window sash 1, a handle 2 is installed on one side of the window sash 1 (a lower side of the window sash 1 is also installed on some handles 2), a transmission component (not marked in the figure and having a conventional structure) connected with the handle 2 is installed on one side of the window sash 1, an upper support component (not marked in the figure) is installed on the upper side of the window sash 1, the upper support component is simultaneously connected with the upper side of the window frame 3, a lower support component (not visible in the figure) is installed on the lower side of the window sash 1, the lower support component is simultaneously connected with the lower side of the window frame 3, the upper end of the transmission component is connected with the upper support component and realizes a 90-degree steering transmission function through an elastic strip (not marked in the figure and having a conventional structure), and the lower end of the transmission component is connected with the lower support component and realizes a 90-degree steering transmission function through the elastic strip. When the handle 2 is rotated, the upper support assembly and the lower support assembly are controlled to act through the transmission assembly, so that corresponding functions of outward opening (shown in fig. 1), suspension opening (shown in fig. 2) and locking (not shown in the drawings) are realized, and generally: when the handle 2 is in the down state, the window sash 1 is in a closed and locked state with the window frame 3, i.e. a locked state (not shown in the figure), when the handle 2 is in the horizontal state, the window sash 1 is in an unlocked state, wherein the handle side of the window sash 1 can be rotated outwards, i.e. opened outwards, as shown in fig. 1, and when the handle 2 is in the up state, the window sash 1 is in an unlocked state, wherein the lower side of the window sash 1 can be rotated outwards, i.e. opened in a hanging state, as shown in fig. 2. The inwardly opened lower hung window (i.e., the inwardly opened inner inverted window) is similar to the above structure and working principle, and will not be described again here.

At present, the casement window has two opening modes of casement and suspension, so that two problems exist: firstly, the problem of misoperation prevention is that when the window sash is in any one of the flat-open state and the suspended state, if a person rotates the handle, the opening and closing control structure of the window sash is possibly disordered and can not realize normal opening and closing operation, and the window sash can be normally used after being readjusted by a professional; secondly, the anti-theft problem is that when a user adopts a hanging-open mode, the anti-theft door can be used for preventing theft, but if an outside person can rotate the handle to enable the window sash to be unfolded, the anti-theft function is lost.

In order to solve the problems, the traditional solution is to install an misoperation prevention and anti-theft device on one side of a window sash opposite to a flat-open hinge, wherein the misoperation prevention and anti-theft device is controlled by adopting a vertical oblique point spring, when the window sash is in any one of flat-open or hanging-open states, a user cannot rotate a handle after locking the misoperation prevention and anti-theft device, and the user can rotate the handle only after unlocking the misoperation prevention and anti-theft device, so that misoperation prevention and anti-theft functions are realized.

The above-mentioned traditional anti-misoperation and anti-theft device has the following defects: firstly, the transmission rod adopted by the misoperation prevention and anti-theft device has larger moving range, lower control precision and smaller vertical inclined point clamping position, when the transmission mechanism is pulled by a handle, the inclined point clamping position is in a severely tight state, when the spring is slightly flexible or sprung off, the transmission mechanism is in a disordered state, so that the misoperation prevention function is lost, the normal switching can be realized only by being readjusted to the original state, and once the misoperation prevention and anti-theft device is in the disordered state, a manufacturer is required to send people for maintenance, the time and the labor are wasted, and the normal use of the product is influenced; secondly, because the misoperation preventing and anti-theft device can only be arranged on one vertical side of the window sash, under any opening state, an outside person can control to release the locking from the outside only by knowing the control mode, thereby losing the anti-theft function.

Disclosure of Invention

The invention aims to solve the problems and provide the hidden misoperation prevention and theft prevention device for the casement window, which is convenient to conceal and install, accurate in control and free from disorder.

The invention realizes the above purpose through the following technical scheme:

The hidden misoperation preventing and theft preventing device for the casement window comprises a linkage rod which is arranged on a window sash of the casement window and is connected with a handle of the casement window through a transmission device, and further comprises a main control device arranged on the window sash of the casement window and an auxiliary control device arranged on a window frame of the casement window, wherein the middle section of the linkage rod is provided with a linkage rod control section, the linkage rod control section is provided with a first clamping groove and a second clamping groove which are axially and alternately arranged on the linkage rod, the first clamping groove and the second clamping groove are respectively communicated with the radial direction of the linkage rod, the main control device comprises a pressure spring, a movable seat and a main control box, the main control box is arranged on the window sash, the movable seat is arranged in the main control box, a first end in two ends of the movable seat is provided with a telescopic tongue plate which can extend out of the main control box, the pressure spring is arranged at the second end of the two ends of the movable seat and enables the movable seat to have elastic force for moving towards the direction of the first end of the movable seat, the connecting line direction between the two ends of the movable seat is mutually perpendicular to the axial direction of the linkage rod, the movable seat is provided with a movable through groove, the movable through groove is communicated in the direction parallel to the axial direction of the linkage rod, the linkage rod control section can be arranged in the movable through groove and can move along the axial direction of the linkage rod, a movable section is arranged on the movable seat at a position close to the movable through groove, the width of the movable section in the axial direction of the linkage rod is smaller than the width of the first clamping groove and the width of the second clamping groove, the movable section is positioned between the movable through groove and the second end of the movable seat, one end face of the movable section is the groove wall surface of one side of the movable through groove, the auxiliary control device comprises a fixed seat, and a baffle corresponding to the telescopic tongue plate is arranged at one end, close to the main control device, of the fixed seat.

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 communicated with the axial direction of the linkage rod in a parallel direction, and the movable through groove and the movable section are both positioned in the limiting groove.

Preferably, in order to facilitate installation and facilitate more reliable adjustment of the movement limit position of the movable seat, a compression spring mounting column is connected to the second end of the movable seat through threads, the compression spring is sleeved outside the compression spring mounting column, the length of the compression spring mounting column is smaller than the normal length of the compression spring, and an inner hexagonal counter bore is formed in the outer end face of the compression spring mounting column.

Preferably, in order to facilitate installation and realize reliable action, one side of the main control box connected with the window sash is provided with an opening, positions on two side walls of the main control box corresponding to the linkage rod control sections are provided with main control box through grooves, the linkage rod control sections penetrate through the main control box through grooves, and the pressure spring mounting columns extend out of the main control box through corresponding gaps on the main control box.

Preferably, in order to facilitate installation and realize reliable action, the auxiliary control device further comprises an auxiliary control box, one side, connected with the window frame, of the auxiliary control box and one end, close to the main control device, of the auxiliary control box are all opened, and the fixing seat is arranged in the auxiliary control box and the baffle extends out of the opening end of the auxiliary control box.

Preferably, in order to enable the telescopic tongue plate to have a larger extending distance when the movable seat rotates at a small angle so as to achieve a reliable blocking function on the linkage rod, the auxiliary control device further comprises an elastic sheet, a limiting groove in the shape of a C is formed in the fixed seat, the elastic sheet in the shape of the C is arranged in the limiting groove, the baffle is arranged at a first end in two ends of the elastic sheet, a first driven plate and a second driven plate are sequentially arranged at positions, close to a second end in two ends, of the elastic sheet, the first driven plate is located between the second end of the elastic sheet and the second driven plate, the first driven plate and the second driven plate extend out of the opening end of the auxiliary control box, a driving plate is arranged on the outer wall, close to one end of the auxiliary control box, of the main control box and is located between the first driven plate and the second driven plate, and the driving plate can drive the first driven plate or the second driven plate to move when the main control box is rotated. The elastic sheet is made of materials according to requirements, can be integrally formed with the baffle plate, the first driven plate and the second driven plate, and can be connected with each other.

Preferably, in order to provide a driving function with higher sensitivity between the driving plate and the first driven plate and the second driven plate, a surface of the second driven plate, which is close to the first driven plate, is an inclined surface, and the inclined surface makes the thickness of the end part of the second driven plate smaller than the thickness of the root part.

Preferably, in order to better realize the functions of theft prevention and misoperation prevention, the linkage rod and the main control device are both arranged at one end of the side hung window corresponding to the hung hinge. Specifically, the linkage rod and the main control device are both arranged on the outer wall of the upper end of the window sash of the outward-opening top-hung window, the linkage rod is positioned below the main control device, and the auxiliary control device is arranged on the inner wall of the upper end of the window frame; or the linkage rod and the main control device are both arranged on the outer wall of the lower end of the window sash of the inward-opening down-hung window, the linkage rod is positioned above the main control device, and the auxiliary control device is arranged on the inner wall of the lower end of the window frame.

The invention has the beneficial effects that:

According to the invention, through designing the linkage rod control section, the main control device and the auxiliary control device which are matched with each other, the casement window can realize the following functions: when the handle of the casement window is in a locking state (generally vertically downward), the control section of the linkage rod and the main control device are not affected by each other, and the linkage rod can move freely; when the handle of the casement window is in an outward opening unlocking state (generally transverse), one clamping groove of the control section of the linkage rod corresponds to the moving section of the moving seat of the main control device, at the moment, the moving section can move in the connecting line direction of the two ends of the moving seat, so that the window sash can be smoothly outward opened, after the window sash is outward opened (the outward opening angle exceeds a small limit angle), the moving seat moves towards the direction close to the auxiliary control device under the action of the pressure spring, so that the moving section passes through the corresponding clamping groove of the control section of the linkage rod, at the moment, the linkage rod cannot move, the handle cannot rotate under the outward opening state of the window sash, and the misoperation prevention function is realized; when the handle of the casement window is in a hanging state (generally, vertically upwards), the other clamping groove of the linkage rod control section corresponds to the moving section of the moving seat of the main control device, at the moment, the moving section can move in the connecting line direction of the two ends of the moving seat, so that the window sash can be smoothly hung, after the window sash is hung (the hanging angle exceeds a small limit angle), the moving seat moves towards the direction close to the auxiliary control device under the action of the pressure spring, so that the moving section passes through the corresponding clamping groove of the linkage rod control section, at the moment, the linkage rod cannot move, the handle cannot rotate under the window sash hanging state, and the misoperation prevention function is realized; in a comprehensive way, the invention can realize the reliable misoperation prevention function that the handle can not rotate under the two states of outward opening and suspension opening of the casement window and can rotate after the window sash is completely closed, does not need manual adjustment intervention, and effectively solves the problems that the misoperation prevention function is disordered, the manufacturer is required to send people for maintenance, wastes time and energy and affects the normal use of products. All the parts of the invention can be arranged at the end of a hung hinge of a casement window, when the casement window is in a hung state, the opening angle is smaller, the parts of the invention are hidden, and an outside person cannot contact the parts of the invention, especially when the casement window is used for an outward-opening upper-hung window, the parts of the invention cannot be controlled by the outside person, so that the outside person cannot realize the purpose of enabling the casement to be opened horizontally when the casement window is hung by controlling the parts of the invention, thereby realizing a reliable anti-theft function.

Drawings

FIG. 1 is a schematic perspective view of an out-swinging top-hung window with a sash in an out-swinging position;

FIG. 2 is a second schematic perspective view of an outward-opening top-hung window, in which a window sash is in a hanging state;

FIG. 3 is a schematic view of a hidden anti-misoperation and anti-theft device for a casement window, wherein a window sash of the corresponding casement window is in a closed state;

FIG. 4 is a schematic diagram of a hidden anti-misoperation and anti-theft device for a casement window according to the second embodiment of the present invention, wherein the window sash of the corresponding casement window is in a closed state, different from the view angle of FIG. 1;

FIG. 5 is a schematic view of a third perspective view of a hidden anti-misoperation and anti-theft device for a casement window according to the present invention, wherein the window sash of the corresponding casement window is in a closed state, unlike the view angles of FIGS. 1 and 2;

FIG. 6 is a schematic perspective view of a linkage rod of the concealed anti-misoperation and anti-theft device for a casement window according to the present invention;

FIG. 7 is a schematic perspective view of a movable seat and a compression spring of a concealed anti-misoperation and anti-theft device for a casement window according to the present invention;

FIG. 8 is a schematic perspective view of a master control box for a hidden anti-misoperation and anti-theft device for a casement window according to the present invention;

FIG. 9 is a schematic perspective view of a fixing base of a concealed anti-misoperation and anti-theft device for a casement window according to the present invention;

FIG. 10 is a schematic diagram of a hidden anti-misoperation and anti-theft device for a casement window according to one of the three-dimensional structure of the device with the auxiliary control box removed, wherein the window sash of the corresponding casement window is in a closed state;

FIG. 11 is a schematic view of a hidden anti-misoperation and anti-theft device for a casement window in a three-dimensional structure when the device is applied, wherein the window sash of the corresponding casement window is in an outward-opening state;

Fig. 12 is a schematic diagram of a second three-dimensional structure of the concealed anti-misoperation and anti-theft device for a casement window according to the present invention when the casement window is applied, and the window sash of the corresponding casement window is in a casement state.

Detailed Description

The invention is further described below with reference to the accompanying drawings:

As shown in fig. 3 to 12, the concealed anti-misoperation and anti-theft device for the casement window according to the present invention comprises a linkage rod 11 installed on a window sash (see window sash 1 of fig. 1 and 2) of the casement window and connected with a handle (see handle 2 of fig. 1 and 2) of the casement window through a transmission device, and further comprises a main control device installed on the window sash of the casement window and an auxiliary control device installed on a window frame (see window frame 3 of fig. 1 and 2) of the casement window, wherein a raised linkage rod control section 10 is arranged at the middle section of the linkage rod 11, a first clamping groove 16 and a second clamping groove 21 are arranged on the linkage rod control section 10 at intervals in the axial direction of the linkage rod 11, the first clamping groove 16 and the second clamping groove 21 are respectively penetrated in the radial direction of the linkage rod 11, the main control device comprises a pressure spring 4, a movable seat 20 and a main control box 6, the main control box 6 is arranged on the window sash, the movable seat 20 is arranged in the main control box 6, a first end of two ends of the movable seat 20 is provided with a telescopic tongue plate 18 which can extend out of the main control box 6, the pressure spring 4 is arranged at a second end of two ends of the movable seat 20 and enables the movable seat 20 to have elastic force for moving towards the direction of the first end, the connecting line direction between the two ends of the movable seat 20 is mutually perpendicular to the axial direction of the linkage rod 11, the movable seat 20 is provided with a movable through groove 9, the movable through groove 9 is communicated in the direction parallel to the axial direction of the linkage rod 11, the linkage rod control section 10 can be arranged in the movable through groove 9 and can move in the axial direction of the linkage rod 11, the position, close to the movable through groove 9, of the movable seat 20 is provided with a movable section 19, the width of the movable section 19 in the axial direction of the linkage rod 11 is smaller than the width of the first clamping groove 16 and the width of the second clamping groove 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 a groove wall surface on one side of the movable through groove 9, the auxiliary control device comprises a fixed seat 12, and a baffle 17 corresponding to the telescopic tongue plate 18 is arranged on one end, close to the main control device, of the fixed seat 12.

As shown in fig. 3-12, the present invention also discloses a number of more optimal specific structures:

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 penetrates in a direction parallel to the axial direction of the linkage rod 11, and the movable through groove 9 and the movable section 19 are both positioned in the limiting groove 23.

In order to facilitate the installation and be convenient for carry out more reliable regulation to the removal extreme position of moving seat 20, the second end of moving seat 20 has pressure spring erection column 5 through threaded connection, and pressure spring 4 suit is outside pressure spring erection column 5, and pressure spring erection column 5's length is less than pressure spring 4's normal length, and pressure spring erection column 5's outer terminal surface is equipped with interior hexagonal counter bore.

In order to facilitate installation and realize reliable action, one side of the main control box 6 connected with the window sashes is provided with an opening, the positions on the two side walls of the main control box 6 corresponding to the linkage rod control sections 10 are provided with main control box through grooves 8, the linkage rod control sections 10 penetrate through the main control box through grooves 8, and the pressure spring mounting columns 5 extend out of the main control box 6 through corresponding gaps on the main control box 6.

In order to facilitate installation and realize reliable action, the auxiliary control device further comprises an auxiliary control box 14, one side of the auxiliary control box 14 connected with the window frame and one end close to the main control device are both open, the fixed seat 12 is arranged in the auxiliary control box 14, and the baffle 17 extends out of the open end of the auxiliary control box 14.

In order to enable the telescopic tongue plate 18 to have a larger extending distance when the movable seat 20 rotates at a small angle so as to achieve a reliable blocking function on the linkage rod 11, the auxiliary control device further comprises an elastic sheet 25, a C-shaped limiting groove 24 is formed in the fixed seat 12, the C-shaped elastic sheet 25 is arranged in the limiting groove 24, the baffle 17 is arranged at a first end in two ends of the elastic sheet 25, a first driven plate 27 and a second driven plate 26 are sequentially arranged at positions, close to a second end in the two ends, of the elastic sheet 25, the first driven plate 27 is arranged between the second end of the elastic sheet 25 and the second driven plate 26, the first driven plate 27 and the second driven plate 26 extend out of an opening end of the auxiliary control box 14, a driving plate 28 is arranged on the outer wall, close to the auxiliary control box 14, of the main control box 6, the driving plate 28 is arranged between the first driven plate 27 and the second driven plate 26, and the driving plate 28 can drive the first driven plate 27 or the second driven plate 26 to move when the main control box 6 rotates.

In order to provide a driving function with higher sensitivity between the driving plate 28 and the first and second driven plates 27 and 26, a surface of the second driven plate 26 adjacent to the first driven plate 27 is inclined, and the inclined surface makes the thickness of the end of the second driven plate 26 smaller than the thickness of the root.

In order to better realize the functions of theft prevention and misoperation prevention, the linkage rod 11 and the main control device are both arranged at one end of the side hung window corresponding to the hung hinge. Specifically, the linkage rod 11 and the main control device are both installed on the outer wall of the upper end of a window sash (refer to fig. 1 and 2) of the outward-opening top-hung window, the linkage rod 11 is positioned below the main control device, and the auxiliary control device is installed on the inner wall of the upper end of the window frame (refer to fig. 1 and 2); or the linkage rod 11 and the main control device are both arranged on the outer wall of the lower end of the window sash of the inward-opening down-hung window, the linkage rod 11 is positioned above the main control device, and the auxiliary control device is arranged on the inner wall of the lower end of the window frame.

Fig. 3 to 5, 8, 10 and 12 also show the main control box mounting piece 7 provided on the opening side wall of the main control box 6, fig. 3 to 5, 11 and 12 also show the auxiliary control box mounting piece 13 provided on the opening side wall of the auxiliary control box 14, and fig. 3 to 6, 10 to 12 also show the connecting racks 15 provided on both ends of the link lever 11, which are conventional adaptive structures.

When the hidden misoperation preventing and anti-theft device for the casement window is used by combining with fig. 1-12, taking the case that the hidden misoperation preventing and anti-theft device for the casement window is arranged on the casement upper-hung window, a linkage rod 11 and a main control device are both arranged on the outer wall of the upper end of a window sash 1 of the casement upper-hung window, the linkage rod 11 is positioned below the main control device, one end of the linkage rod 11 is connected with a transmission device through a connecting rack 15, so that the transmission connection with a handle 2 is realized, and an auxiliary control device is arranged on the inner wall of the upper end of a window frame 3; when the window sash 1 is in a closed state, the telescopic tongue plate 18 on the movable seat 20 is propped against the baffle plate 17 on the fixed seat 12, the pressure spring 4 is compressed, the movable through groove 9 on the movable seat 20 just corresponds to the linkage rod 11, the linkage rod control section 10 can slide in the movable through groove 9, and at the moment, the device does not limit the position of the linkage rod 11, and the handle 2 can rotate according to the requirement; if the user wants to lock the window sash 1, the handle 2 is rotated downward to be vertically downward, and the window sash 1 cannot be opened at this time; if the user wants to open the window sash 1 outwards, the handle 2 is rotated upwards to enable the window sash 1 to be in a transverse direction, at the moment, the first clamping groove 16 (or the second clamping groove 21) on the linkage rod control section 10 just corresponds to the moving section 19 on the moving seat 20, the moving seat 20 can move relative to the linkage rod 11, and at the moment, the user can open the window sash 1 outwards in a flat-open mode, namely outwards; after the window sash 1 is opened outwards (the angle of the window sash 1 exceeds a very small limit angle), the movable seat 20 moves towards the direction close to the auxiliary control device under the action of the pressure spring 4, so that the movable section 19 passes through the corresponding clamping groove of the linkage rod control section 10, and the linkage rod 11 can not move in the axial direction any more, thereby ensuring that the handle 2 can not rotate (can not rotate in any direction) when the window sash 1 is in the opened outwards state, and realizing the misoperation prevention function.

If the handle 2 is to be rotated, the window sash 1 needs to be closed in place, the telescopic tongue plate 18 on the movable seat 20 is again supported by the baffle 17 on the fixed seat 12, and the handle 2 can be rotated upwards or downwards as required.

If the user wants to hang the window sash 1, the handle 2 is rotated upwards to enable the window sash 1 to be in a vertically upwards state, at the moment, the second clamping groove 21 (or the first clamping groove 16) on the linkage rod control section 10 just corresponds to the moving section 19 on the moving seat 20, the moving seat 20 can move relative to the linkage rod 11, at the moment, the user can rotate the lower end of the window sash 1 outwards to open, namely to hang; after the window sash 1 is hung (the hanging angle exceeds a small limit angle), the movable seat 20 moves towards the direction close to the auxiliary control device under the action of the pressure spring 4, so that the movable section 19 passes through the corresponding clamping groove of the linkage rod control section 10, and the linkage rod 11 can not move in the axial direction any more, thereby ensuring that the handle 2 can not rotate (can not rotate in any direction) when the window sash 1 is in an outward-opening state, and realizing the misoperation prevention function; in this state, the outside person cannot control the member of the present invention, so that the locked state cannot be released, and the window sash 1 cannot be opened outward while being hung by rotating the handle 2, thereby realizing the antitheft function.

In the suspension process, the driving plate 28 follows to rotate, so as to push the first driven plate 27 to move, the elastic piece 25 drives the baffle 17 to retract into the auxiliary control box 14, more extension space is reserved for the telescopic tongue plate 18, the length of the moving section 19 penetrating through the corresponding clamping groove of the linkage rod control section 10 is increased a little, so that a more reliable locking function is realized, and the phenomenon that the length of the overlapping part of the moving section 19 and the corresponding clamping groove of the linkage rod control section 10 is too small because the moving distance of the moving seat 20 is too small can be prevented, so that the linkage rod 11 can be driven to move under the condition of strongly rotating the handle 2, the misoperation preventing function is lost, and corresponding parts can be damaged.

If the handle 2 is to be rotated downwards, the window sash 1 needs to be closed in place, the telescopic tongue plate 18 on the movable seat 20 is again supported by the baffle 17 on the fixed seat 12, and at this time, the handle 2 can be rotated downwards to return to the outward opening required position or lock the required position.

The above embodiments are only preferred embodiments of the present invention, and are not limiting to the technical solutions of the present invention, and any technical solution that can be implemented on the basis of the above embodiments without inventive effort should be considered as falling within the scope of protection of the patent claims of the present invention.

Claims (8)

1. The utility model provides a hidden maloperation and anti-theft device for flat-open hung window, including install in on the casement of flat-open hung window and through transmission with the gangbar that handle of flat-open hung window is connected, its characterized in that: the main control device comprises a pressure spring, a moving seat and a main control box, the main control box is arranged on the window sash of the casement window, a telescopic tongue plate which can extend out of the main control box is arranged at the middle section of the linkage rod, a first clamping groove and a second clamping groove which are axially arranged at intervals of the linkage rod are arranged on the linkage rod control section, the first clamping groove and the second clamping groove are respectively in radial through connection with the linkage rod, the main control device comprises the pressure spring, the moving seat and the main control box, the main control box is arranged on the window sash, the moving seat is arranged in the main control box, the first ends of the two ends of the moving seat are provided with elastic tongue plates which can extend out of the main control box, the pressure spring is arranged at the second ends of the two ends of the moving seat and enable the moving seat to have elastic force which moves towards the first end direction of the linkage rod, the moving seat is provided with a moving through groove which is in the axial direction perpendicular to the axial direction of the linkage rod, the moving seat is respectively, the moving through groove is arranged in the axial direction of the linkage rod, the main control groove is arranged in the axial direction parallel to the moving seat, the moving seat is provided with the moving tongue plate which can be close to the moving seat, the moving seat is arranged at the moving seat, and the moving seat is close to the moving seat.

2. The concealed anti-misoperation and anti-theft device for a casement window according to claim 1, wherein: the movable seat is provided with a limiting groove, the limiting groove is communicated with the axial direction of the linkage rod in a parallel direction, and the movable through groove and the movable section are both positioned in the limiting groove.

3. The concealed anti-misoperation and anti-theft device for a casement window according to claim 1, wherein: the second end of the movable seat is connected with a pressure spring mounting column through threads, the pressure spring is sleeved outside the pressure spring mounting column, the length of the pressure spring mounting column is smaller than the normal length of the pressure spring, and an inner hexagonal counter bore is formed in the outer end face of the pressure spring mounting column.

4. The concealed anti-misoperation and anti-theft device for a casement window according to claim 3, wherein: the main control box is provided with an opening at one side connected with the window sashes, the positions on the two side walls of the main control box, corresponding to the linkage rod control sections, are provided with main control box through grooves, the linkage rod control sections penetrate through the main control box through grooves, and the pressure spring mounting columns extend out of the main control box through corresponding gaps on the main control box.

5. The concealed anti-misoperation and anti-theft device for a casement window according to any one of claims 1 to 4, wherein: the auxiliary control device further comprises an auxiliary control box, one side, connected with the window frame, of the auxiliary control box and one end, close to the main control device, of the auxiliary control box are all opened, and the fixing base is arranged in 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 a casement window according to claim 5, wherein: the auxiliary control device further comprises an elastic sheet, a limiting groove in a C shape is formed in the fixing seat, the elastic sheet in the C shape is arranged in the limiting groove, the baffle is arranged at a first end of the elastic sheet, a first driven plate and a second driven plate are sequentially arranged on the elastic sheet at positions, close to a second end of the two ends, of the elastic sheet, the first driven plate is located between the second end of the elastic sheet and the second driven plate, the first driven plate and the second driven plate extend out of an opening end of the auxiliary control box, a driving plate is arranged on an outer wall of one end, close to the auxiliary control box, of the main control box, and the driving plate is located between the first driven plate and the second driven plate and can drive the first driven plate or the second driven plate to move when the main control box rotates.

7. The concealed anti-misoperation and anti-theft device for a casement window according to claim 6, wherein: the surface of one side of the second driven plate, which is close to the first driven plate, is an inclined plane, and the thickness of the end part of the second driven plate is smaller than the thickness of the root part of the second driven plate.

8. The concealed anti-misoperation and anti-theft device for a casement window according to any one of claims 1 to 4, wherein: the linkage rod and the main control device are both arranged at one end of the side hung window corresponding to the hanging hinge.