阅读说明：本技术 一种用于防止儿童意外开启的磁力弹簧式门窗把手止动器 (Magnetic spring type door and window handle stopper for preventing children from opening accidentally ) 是由 刘亦晴 于 2020-07-08 设计创作，主要内容包括：一种用于防止儿童意外开启的磁力弹簧式门窗把手止动器,在门窗锁下部设置阻挡杆组件,在阻挡杆组件上设置上支架组件,阻挡杆组件分别与第一滑动杆、第二滑动杆连接,第一滑动杆上部与上支架组件连接,第一滑动杆下部与下支架组件连接,第二滑动杆上部与上支架组件连接,第二滑动杆下部与下支架组件连接,下支架组件通过背胶粘贴在门窗锁下方的门窗上,在阻挡杆组件的正面设置磁力解锁器。该发明具有可靠性,精确性,可操作性,耐久性,安全性,实现阻挡杆组件的精确定位,阻挡杆组件锁定后冲击、晃动、振动等均无法使插销定位机构松脱,防止装置意外失效,出现安全隐患,将广泛应用于房屋建筑设计技术领域中。(The utility model provides a magnetic spring formula door and window handle retainer for preventing children's accident is opened, set up in door and window lock lower part and block the pole subassembly, set up the upper bracket subassembly on blocking the pole subassembly, block the pole subassembly respectively with first slide bar, the second slide bar is connected, first slide bar upper portion is connected with the upper bracket subassembly, first slide bar lower part is connected with lower bracket subassembly, second slide bar upper portion is connected with the upper bracket subassembly, second slide bar lower part is connected with lower bracket subassembly, lower bracket subassembly is pasted on the door and window of door and window lock below through the gum, set up magnetic unlocking ware in the front that blocks the pole subassembly. The invention has the advantages of reliability, accuracy, operability, durability and safety, realizes the accurate positioning of the blocking rod assembly, prevents the bolt positioning mechanism from loosening due to impact, shaking, vibration and the like after the blocking rod assembly is locked, prevents the device from accidental failure and potential safety hazard, and can be widely applied to the technical field of house building design.)

1. A magnetic spring type door and window handle stopper for preventing children from being accidentally opened comprises a door and window lock, an upper bracket assembly, a blocking rod assembly, a magnetic unlocking device, a first sliding rod, a second sliding rod and a lower bracket assembly, and is characterized in that the blocking rod assembly is arranged at the lower part of the door and window lock, the upper bracket assembly is arranged on the blocking rod assembly, the blocking rod assembly is respectively connected with the first sliding rod and the second sliding rod, the upper part of the first sliding rod is connected with the upper bracket assembly, the lower part of the first sliding rod is connected with the lower bracket assembly, the upper part of the second sliding rod is connected with the upper bracket assembly, the lower part of the second sliding rod is connected with the lower bracket assembly, the lower bracket assembly is adhered to a door and window below the door and window lock through gum, and the magnetic unlocking device; the upper bracket component consists of a first base, a first upper cover, a first screw, a first mounting hole and a second mounting hole, wherein the first base is connected with the first upper cover, the first upper cover is connected and fixed on the first base through the first screw, and the first mounting hole and the second mounting hole are arranged between the first base and the first upper cover; the blocking rod assembly comprises a blocking rod body, a bolt, a spring thrust plate, a spring thrust bolt, a blocking rod upper cover, a magnetic plate, a third mounting hole and a fourth mounting hole, wherein the bolt is arranged in an inner hole of the blocking rod body, the bolt is connected with the spring thrust plate and the magnetic plate, the spring thrust plate is connected with the spring, the spring is connected with the spring thrust bolt, a magnetic unlocking device is arranged on the upper portion of the blocking rod upper cover of the blocking rod assembly, and the third mounting hole and the fourth mounting hole are arranged on the lower portion of the blocking rod body; the magnetic unlocking device consists of a magnet and an unlocking device upper cover, and the unlocking device upper cover is arranged on the upper part of the magnet; the first sliding rod is a hollow cylinder; the second sliding rod consists of a second sliding rod body and pin holes, and the second sliding rod body is provided with 21 pin holes; the lower bracket component consists of a second base, a second upper cover, a second screw, a fifth mounting hole and a sixth mounting hole, the second base is connected with the second upper cover, the second upper cover is connected and fixed on the second base through the second screw, and the second base and the second upper cover jointly form the fifth mounting hole and the sixth mounting hole.

2. The magnetomechanical spring door handle stop according to claim 1, wherein: the blocking rod assembly can slide on the first sliding rod and the second sliding rod; the stop lever assembly can be stopped in place and positioned on the second slide bar by a latching mechanism; the bolt and the spring thrust plate can move downwards on the blocking rod body under the pushing of the spring.

3. The magnetomechanical spring door handle stop according to claim 1, wherein: the working principle of the magnetic spring type door and window handle stopper for preventing children from being opened accidentally is that (1) the function of regulating the position of the blocking rod assembly is realized: the third mounting hole of the blocking rod assembly is in clearance fit with the first sliding rod, the fourth mounting hole of the blocking rod assembly is in clearance fit with the second sliding rod, and the double-sliding-rail design can enable the blocking rod assembly to slide stably along the axial direction of the sliding rails; (2) realize bolt unblock function: the magnetic unlocking device is close to the upper cover of the blocking rod, so that the magnetic plate moves upwards under the magnetic force of the magnet, meanwhile, the magnetic plate drives the bolt and the spring thrust plate which are connected with the magnetic plate to move upwards, the spring thrust plate enables the spring to be in a compressed state, and the bolt is pulled out of the pin hole, so that the bolt unlocking function is realized; (3) the precise positioning function of the blocking rod assembly is as follows: after the blocking rod assembly is adjusted to a proper position, the magnetic unlocking device is removed, the spring releases elastic potential energy and pushes the spring thrust plate and the bolt to move together, and the bolt is inserted into the pin hole of the second sliding rod, so that the blocking rod assembly is fixed on the second sliding rod.

4. The magnetomechanical spring door handle stop according to claim 1, wherein: the use and operation method of the magnetic spring type door and window handle stopper for preventing children from accidentally opening is that the stopper is arranged on the door and window behind the lower part of the door and window handle, the bolt is unlocked through the magnetic unlocking device, the blocking rod component is pushed to a proper position to block the door and window handle, when a door or window needs to be opened, the bolt locking is released through the magnetic unlocking device, the blocking rod assembly is pushed to be close to the lower support assembly, the door or window handle can be freely opened, five steps are totally performed, each step completes one work content, the first step is the installation of a stopper, the handle of the door or window lock is placed in a horizontal position, the stopper is vertically placed, the upper support assembly is arranged above the lower support assembly, the upper support assembly is slightly higher than the handle of the door or window lock, and the upper support assembly and the lower support assembly are adhered to the door or window through double faced adhesive tapes to ensure firm adhesion; the second step is that the stopper blocking rod assembly is unlocked, after the door and the window are closed, the handle of the door and window lock is ensured to be in a horizontal position, the magnetic unlocking device is close to the upper cover of the blocking rod, the magnetic plate is enabled to move upwards under the magnetic force action of the magnet, meanwhile, the magnetic plate drives the bolt and the spring thrust plate which are connected with the magnetic plate to move upwards, the bolt is pulled out from the pin hole, the bolt is enabled to be separated from the pin hole of the second sliding rod, and after the blocking rod assembly is unlocked, the blocking rod assembly can freely slide on the first sliding rod and the second sliding rod; thirdly, the position of the stopper blocking rod assembly is adjusted, the magnetic unlocking device is close to the upper cover of the blocking rod, the lifting state of the bolt is kept, and meanwhile, the blocking rod assembly is pushed upwards along the first sliding rod and the second sliding rod until the blocking rod assembly is attached to a handle of the door and window lock; fourthly, locking the stopper blocking rod assembly, removing the magnetic unlocking device after the blocking rod assembly is attached to a handle of the door and window lock, releasing elastic potential energy by a spring, pushing a spring thrust plate and a bolt to move, and inserting the bolt into a pin hole of the second sliding rod after being guided by a chamfer at the front part so as to restore the locking state of the stopper blocking rod assembly; and fifthly, the function of preventing the door and window lock handle from being opened accidentally by children is realized, when the handle of the door and window lock is pulled downwards by a child, the handle of the window lock hits the stop rod assembly, the stop rod assembly is locked in the pin hole of the second sliding rod by the bolt, the stop rod assembly cannot move, the handle of the window lock cannot normally rotate, the door and the window cannot be normally opened, and the function of preventing the door and window lock handle from being opened accidentally by children is realized.

Technical Field

The invention relates to a magnetic spring type door and window handle stopper for preventing children from opening accidentally, belonging to the technical field of house building design.

Background

The window in the technical field of building design is a basic construction element of a building and is a carrier for lighting, ventilation, burglary prevention, landscape observation and building attractive appearance. However, windows, especially bay windows (also known as bay windows) widely used in buildings, are often a household safety hazard that endangers children's safety. Under the development situation that the demands of high-grade doors and windows of residents are higher and higher, more and more casement doors and windows are used for building doors and windows at present. When the window is locked, the handle is in a horizontal state, and when the window is opened, the window handle rotates by 90 degrees, so that the flat-open function of the window can be realized. The disadvantage of this method is that no matter adults or children can open the window at will to achieve the flat-open function. Therefore, the hidden danger of falling after the child opens the window by oneself can be caused.

The news reports that the event that children fall from the building happens occasionally, the training is very painful, so that many families choose to install the anti-theft net, the children can be prevented from being stolen and the falling event of the children can be avoided, but the anti-theft net not only influences the appearance of the building, but more importantly has great fire-fighting and escape potential safety hazards, and once a fire disaster happens, the anti-theft net is a great obstacle for escaping. Also have the window handle of taking the key in the market, can lock the handle with the key after the window is closed, take off the key, prevent that the window is unexpected to be opened, reinsert the key when needing to open the window, open the handle lock. However, the handle with the key needs to be frequently inserted and pulled out, the key is troublesome to manage, and once the key is lost, the window lockset can be integrally replaced. In order to prevent children from opening the window accidentally, ensure the safety of the children and completely eliminate the falling risk of the children, a plurality of parents consider installing a safety lock for the window at home, so that the children are prevented from turning the handle of the window curiously and the normal opening and closing of the window at ordinary times are not influenced. Although those skilled in the art have devised child-resistant lock devices that prevent accidental opening of windows, they are not ideal.

Patent application number CN209384782U discloses a child door lock catch, which comprises a base, a first lock handle and a second lock handle, wherein the first lock handle and the second lock handle are respectively rotatably arranged on the base; the base comprises a base, a protruding frame integrated with the base and tubular installation parts respectively arranged at two ends of the protruding frame, wherein the outer wall of each installation part is provided with a limiting groove and a plurality of clamping grooves; also can accomplish the function that prevents children from rotating the window handle in the patent application, but adopted the structure of two lock handles in the design, and the unable regulation of distance between first lock handle and the second lock handle. The application of the patent has three problems that firstly, the handles of most windows are of a horizontal and vertical two-position structure, namely the rotation range of the handles is 90 degrees, the handles are in a horizontal state when the windows are closed, the handles can be locked only by one lock handle, and the two lock handles are certainly wasted; secondly, the lock handle of the patent adopts a rotating mode, the gap between the lock handle and the handle cannot be minimized, and particularly for the handle with an irregular shape, the gap between the lock handle and the handle is possibly too large, so that the risk of window locking failure is caused; thirdly, the locking handle locking mechanism of the patent can be unlocked by one hand, and children may unlock the lock if repeatedly trying, so that the locking handle is rotated, and the risk of window locking failure exists. The prior art also has the problems, and the requirements of users on safety locks with safety, reliability and usability cannot be met. Therefore, it is an urgent need to develop a detent device for a door knob of a magnetic spring type for preventing children from being accidentally opened.

Disclosure of Invention

The invention aims to provide a magnetic spring type door and window handle stopper for preventing children from opening accidentally. When needs locking door and window, press close to the magnetic force unlocking device and block the pole upper cover, block the pole subassembly and can slide on the slide bar, will block the pole subassembly and upwards mention and press close to the door and window handle, take off the magnetic force unlocking device, block the pole subassembly and fix on the slide bar through bolt mechanism, the door and window handle is locked and can't be rotated, prevents that children from accidentally opening, the user can be on the basis of current door and window lock, through the fixed and this device of use of mode that bonds, need not to reform transform the door and window lock.

The purpose of the invention is realized as follows: a magnetic spring type door and window handle stopper for preventing children from being accidentally opened comprises a door and window lock, an upper bracket assembly, a blocking rod assembly, a magnetic unlocking device, a first sliding rod, a second sliding rod and a lower bracket assembly, wherein the blocking rod assembly is arranged at the lower part of the door and window lock, the upper bracket assembly is arranged on the blocking rod assembly, the blocking rod assembly is respectively connected with the first sliding rod and the second sliding rod, the upper part of the first sliding rod is connected with the upper bracket assembly, the lower part of the first sliding rod is connected with the lower bracket assembly, the upper part of the second sliding rod is connected with the upper bracket assembly, the lower part of the second sliding rod is connected with the lower bracket assembly, the lower bracket assembly is pasted on a door and window below the door and window lock through gum, and the magnetic unlocking device; the upper bracket component consists of a first base, a first upper cover, a first screw, a first mounting hole and a second mounting hole, wherein the first base is connected with the first upper cover, the first upper cover is connected and fixed on the first base through the first screw, and the first mounting hole and the second mounting hole are arranged between the first base and the first upper cover; the blocking rod assembly comprises a blocking rod body, a bolt, a spring thrust plate, a spring thrust bolt, a blocking rod upper cover, a magnetic plate, a third mounting hole and a fourth mounting hole, wherein the bolt is arranged in an inner hole of the blocking rod body, the bolt is connected with the spring thrust plate and the magnetic plate, the spring thrust plate is connected with the spring, the spring is connected with the spring thrust bolt, a magnetic unlocking device is arranged on the upper portion of the blocking rod upper cover of the blocking rod assembly, and the third mounting hole and the fourth mounting hole are arranged on the lower portion of the blocking rod body; the magnetic unlocking device consists of a magnet and an unlocking device upper cover, and the unlocking device upper cover is arranged on the upper part of the magnet; the first sliding rod is a hollow cylinder; the second sliding rod consists of a second sliding rod body and pin holes, and the second sliding rod body is provided with 21 pin holes; the lower bracket component consists of a second base, a second upper cover, a second screw, a fifth mounting hole and a sixth mounting hole, wherein the second base is connected with the second upper cover, the second upper cover is fixedly connected on the second base through the second screw, and the second base and the second upper cover jointly form the fifth mounting hole and the sixth mounting hole;

the blocking rod assembly can slide on the first sliding rod and the second sliding rod; the stop lever assembly can be stopped in place and positioned on the second slide bar by a latching mechanism; the bolt and the spring thrust plate can move downwards on the blocking rod body under the pushing of the spring;

the working principle of the magnetic spring type door and window handle stopper for preventing children from being opened accidentally is that (1) the function of regulating the position of the blocking rod assembly is realized: the third mounting hole of the blocking rod assembly is in clearance fit with the first sliding rod, the fourth mounting hole of the blocking rod assembly is in clearance fit with the second sliding rod, and the double-sliding-rail design can enable the blocking rod assembly to slide stably along the axial direction of the sliding rails; (2) realize bolt unblock function: the magnetic unlocking device is close to the upper cover of the blocking rod, so that the magnetic plate moves upwards under the magnetic force of the magnet, meanwhile, the magnetic plate drives the bolt and the spring thrust plate which are connected with the magnetic plate to move upwards, the spring thrust plate enables the spring to be in a compressed state, and the bolt is pulled out of the pin hole, so that the bolt unlocking function is realized; (3) the precise positioning function of the blocking rod assembly is as follows: after the blocking rod assembly is adjusted to a proper position, the magnetic unlocking device is removed, the spring releases elastic potential energy and pushes the spring thrust plate and the bolt to move together, and the bolt is inserted into the pin hole of the second sliding rod, so that the blocking rod assembly is fixed on the second sliding rod;

the use and operation method of the magnetic spring type door and window handle stopper for preventing children from accidentally opening is that the stopper is arranged on the door and window behind the lower part of the door and window handle, the bolt is unlocked through the magnetic unlocking device, the blocking rod component is pushed to a proper position to block the door and window handle, when a door or window needs to be opened, the bolt locking is released through the magnetic unlocking device, the blocking rod assembly is pushed to be close to the lower support assembly, the door or window handle can be freely opened, five steps are totally performed, each step completes one work content, the first step is the installation of a stopper, the handle of the door or window lock is placed in a horizontal position, the stopper is vertically placed, the upper support assembly is arranged above the lower support assembly, the upper support assembly is slightly higher than the handle of the door or window lock, and the upper support assembly and the lower support assembly are adhered to the door or window through double faced adhesive tapes to ensure firm adhesion; the second step is that the stopper blocking rod assembly is unlocked, after the door and the window are closed, the handle of the door and window lock is ensured to be in a horizontal position, the magnetic unlocking device is close to the upper cover of the blocking rod, the magnetic plate is enabled to move upwards under the magnetic force action of the magnet, meanwhile, the magnetic plate drives the bolt and the spring thrust plate which are connected with the magnetic plate to move upwards, the bolt is pulled out from the pin hole, the bolt is enabled to be separated from the pin hole of the second sliding rod, and after the blocking rod assembly is unlocked, the blocking rod assembly can freely slide on the first sliding rod and the second sliding rod; thirdly, the position of the stopper blocking rod assembly is adjusted, the magnetic unlocking device is close to the upper cover of the blocking rod, the lifting state of the bolt is kept, and meanwhile, the blocking rod assembly is pushed upwards along the first sliding rod and the second sliding rod until the blocking rod assembly is attached to a handle of the door and window lock; fourthly, locking the stopper blocking rod assembly, removing the magnetic unlocking device after the blocking rod assembly is attached to a handle of the door and window lock, releasing elastic potential energy by a spring, pushing a spring thrust plate and a bolt to move, and inserting the bolt into a pin hole of the second sliding rod after being guided by a chamfer at the front part so as to restore the locking state of the stopper blocking rod assembly; and fifthly, the function of preventing the door and window lock handle from being opened accidentally by children is realized, when the handle of the door and window lock is pulled downwards by a child, the handle of the window lock hits the stop rod assembly, the stop rod assembly is locked in the pin hole of the second sliding rod by the bolt, the stop rod assembly cannot move, the handle of the window lock cannot normally rotate, the door and the window cannot be normally opened, and the function of preventing the door and window lock handle from being opened accidentally by children is realized.

The key points of the invention are its structure, working principle, use and operation method.

Compared with the prior art, the invention has the beneficial effects that:

(1) reliability: according to the invention, the plug pin positioning mechanism is adopted, so that the blocking rod assembly can be accurately positioned, and the plug pin positioning mechanism cannot be loosened by impact, shaking, vibration and the like after the blocking rod assembly is locked, so that the accidental failure of the device is prevented, and potential safety hazards are prevented;

(2) the accuracy is as follows: the blocking rod component can move on the sliding rod, so that the sliding rod component is ensured to be tightly attached to the door and window handle, the gap between the blocking rod component and the door and window handle is eliminated, the condition that the door and window are accidentally opened due to overlarge gap is avoided, and the safety and the effectiveness of the device are ensured;

(3) operability is as follows: the device does not need to punch holes on doors and windows, and only needs to be adhered to the vicinity of a door lock through double-sided adhesive, so that the device is convenient to install, and a user can install the device under the guidance of an operation manual; the locking and unlocking operation can be finished by one hand, the operation is quick, simple and convenient, and time and labor are saved; when a plurality of doors and windows need to be locked in a room, only one magnetic unlocking device is needed;

(4) durability: similar devices are mostly made of plastic, the strength, rigidity and the like of the plastic are continuously reduced along with the increase of the service life, particularly, the aging speed of the plastic is accelerated under the condition of being installed at a position with direct sunlight, and serious potential safety hazards can be caused after the device is aged; the invention adopts the sliding rod made of steel and the blocking rod assembly made of aluminum alloy, ensures the durability of the device, and can be used for many times and for a long time without worry.

(5) Safety: the unlocking operation of a locking mechanism of a similar device is too simple, and when a child has certain imitation capability, the situation that the child unlocks the lock accidentally can occur, so that accidents are caused; the invention adopts a hidden design, has no unlocking switch, and has to use a special magnetic unlocking device for unlocking, so that a child guardian only needs to place the magnetic unlocking device in a place which cannot be taken by a child, thereby ensuring the safety and effectiveness of the device;

the method can be widely applied to the technical field of house building design.

Drawings

The present invention will be described in detail below with reference to the accompanying drawings and examples.

Fig. 1 is a schematic structural view of the present invention.

Fig. 2 is a top view of fig. 1.

Fig. 3 is a schematic structural view of a portion of the upper bracket assembly of the present invention.

Fig. 4 is a top view of fig. 3.

FIG. 5 is a schematic view of the construction of a portion of a blocking rod assembly of the present invention.

Fig. 6 is a top view of fig. 5.

Fig. 7 is a schematic view of the structure of the magnetic unlocker part of the present invention.

Fig. 8 is a top view of fig. 7.

Fig. 9 is a schematic view of the structure of the first slide lever portion of the present invention.

Fig. 10 is a top view of fig. 9.

Fig. 11 is a schematic view of the structure of the second slide lever portion of the present invention.

Fig. 12 is a top view of fig. 11.

Fig. 13 is a schematic view of the construction of the lower bracket assembly portion of the present invention.

Fig. 14 is a top view of fig. 13.

Detailed Description

Referring to the attached drawings, the magnetic spring type door and window handle stopper for preventing children from being accidentally opened comprises a door and window lock 1, an upper bracket assembly 2, a blocking rod assembly 3, a magnetic unlocking device 4, a first sliding rod 5, a second sliding rod 6 and a lower bracket assembly 7, wherein the blocking rod assembly 3 is arranged at the lower part of the door and window lock 1, the upper bracket assembly 2 is arranged on the blocking rod assembly 3, the blocking rod assembly 3 is respectively connected with the first sliding rod 5 and the second sliding rod 6, the upper part of the first sliding rod 5 is connected with the upper bracket assembly 2, the lower part of the first sliding rod 5 is connected with the lower bracket assembly 7, the upper part of the second sliding rod 6 is connected with the upper bracket assembly 2, the lower part of the second sliding rod 6 is connected with the lower bracket assembly 7, the lower bracket assembly 7 is attached to a door and window below the door and window lock 1 through a back of an adhesive, and the magnetic unlocking device; the upper bracket component 2 consists of a first base 2-1, a first upper cover 2-2, a first screw 2-3, a first mounting hole 2-4 and a second mounting hole 2-5, the first base 2-1 is connected with the first upper cover 2-2, the first upper cover 2-2 is connected and fixed on the first base 2-1 through the first screw 2-3, and the first mounting hole 2-4 and the second mounting hole 2-5 are arranged between the first base 2-1 and the first upper cover 2-2; the stop rod component 3 consists of a stop rod body 3-1, a bolt 3-2, a spring thrust plate 3-3, a spring 3-4, a spring thrust bolt 3-5, a stop rod upper cover 3-6, a magnetic plate 3-7, a third mounting hole 3-8 and a fourth mounting hole 3-9, a bolt 3-2 is arranged in an inner hole of the blocking rod body 3-1, the bolt 3-2 is connected with a spring thrust plate 3-3 and a magnetic plate 3-7, the spring thrust plate 3-3 is connected with a spring 3-4, the spring 3-4 is connected with a spring thrust bolt 3-5, the upper part of a barrier rod upper cover 3-6 of the barrier rod component 3 is provided with a magnetic unlocking device 4, and the lower part of a barrier rod body 3-1 is provided with a third mounting hole 3-8 and a fourth mounting hole 3-9; the magnetic unlocking device 4 consists of a magnet 4-1 and an unlocking device upper cover 4-2, and the unlocking device upper cover 4-2 is arranged on the upper part of the magnet 4-1; the first sliding rod 5 is a hollow cylinder; the second sliding rod 6 consists of a second sliding rod body 6-1 and pin holes 6-2, and 21 pin holes 6-2 are arranged on the second sliding rod body 6-1; the lower bracket component 7 consists of a second base 7-1, a second upper cover 7-2, a second screw 7-3, a fifth mounting hole 7-4 and a sixth mounting hole 7-5, the second base 7-1 is connected with the second upper cover 7-2, the second upper cover 7-2 is connected and fixed on the second base 7-1 through the second screw 7-3, and the second base 7-1 and the second upper cover 7-2 jointly form the fifth mounting hole 7-4 and the sixth mounting hole 7-5.

The blocking rod assembly 3 can slide on the first sliding rod 5 and the second sliding rod 6; the stop lever assembly 3 can be stopped in place and positioned on the second sliding bar 6 by means of a latch; the bolt 3-2 and the spring thrust plate 3-3 can move downwards on the blocking rod body 3-1 under the pushing of the spring 3-4.

The working principle of the magnetic spring type door and window handle stopper for preventing children from being opened accidentally is that (1) the function of regulating the position of the blocking rod assembly is realized: the third mounting holes 3-8 of the blocking rod assembly 3 are in clearance fit with the first sliding rod 5, the fourth mounting holes 3-9 of the blocking rod assembly 3 are in clearance fit with the second sliding rod 6, and the double-sliding-rail design can enable the blocking rod assembly 3 to slide stably along the axial direction of the sliding rails; (2) realize bolt unblock function: the magnetic unlocking device 4 is close to the upper cover 3-6 of the blocking rod, so that the magnetic plate 3-7 moves upwards under the magnetic force of the magnet 4-1, meanwhile, the magnetic plate 3-7 drives the bolt 3-2 and the spring thrust plate 3-3 which are connected with the magnetic plate to move upwards, the spring thrust plate 3-3 enables the spring 3-4 to be in a compressed state, and the bolt 3-2 is pulled out of the pin hole, so that the bolt unlocking function is realized; (3) the precise positioning function of the blocking rod assembly is as follows: after the blocking rod assembly 3 is adjusted to a proper position, the magnetic unlocking device 4 is removed, the spring 3-4 releases elastic potential energy and pushes the spring thrust plate 3-3 and the bolt 3-2 to move together, and the bolt 3-2 is inserted into the pin hole of the second sliding rod 6, so that the blocking rod assembly 3 is fixed on the second sliding rod 6.

The use and operation method of the magnetic spring type door and window handle stopper for preventing children from being accidentally opened comprises the steps of installing the stopper on a door and window behind the lower part of a door and window handle, releasing bolt locking through a magnetic unlocking device 4, pushing a blocking rod component 3 to a proper position to clamp the door and window handle, releasing bolt locking through the magnetic unlocking device 4 when the door and window needs to be opened, pushing the blocking rod component 3 to be close to a lower bracket component 7, enabling the door and window handle to be freely opened, completing one work content in each step, installing the stopper, placing the handle of the door and window lock 1 in a horizontal position, vertically placing the stopper, enabling an upper bracket component 2 to be above and the lower bracket component 7 to be below, enabling the upper bracket component 2 to be slightly higher than the handle of the door and window lock 1, and pasting the upper bracket component 2 and the lower bracket component 7 on the door and window by using double faced adhesive tape, ensuring firm adhesion; the second step is that the stopper blocking rod assembly is unlocked, after the door and the window are closed, the handle of the door and window lock 1 is ensured to be in a horizontal position, the magnetic unlocking device 4 is attached to the upper cover 3-6 of the blocking rod, the magnetic plate 3-7 moves upwards under the magnetic force of the magnet 4-1, meanwhile, the magnetic plate 3-7 drives the bolt 3-2 and the spring thrust plate 3-3 connected with the magnetic plate to move upwards, the bolt 3-2 is pulled out of the pin hole, the bolt 3-2 is separated from the pin hole 6-2 of the second sliding rod 6, and after the blocking rod assembly 3 is unlocked, the bolt can freely slide on the first sliding rod 5 and the second sliding rod 6; thirdly, the position of the stopper blocking rod assembly is adjusted, the magnetic unlocking device 4 is close to the upper cover 3-6 of the blocking rod, the lifting state of the bolt 3-2 is kept, and meanwhile, the blocking rod assembly 3 is pushed upwards along the first sliding rod 5 and the second sliding rod 6 until the blocking rod assembly 3 is attached to the handle of the door and window lock 1; fourthly, locking the stopper blocking rod assembly, removing the magnetic unlocking device 4 after the blocking rod assembly 3 is attached to the handle of the door and window lock 1, releasing elastic potential energy by the spring 3-4, pushing the spring thrust plate 3-3 and the bolt 3-2 to move, inserting the bolt 3-2 into the pin hole 6-2 of the second sliding rod 6 after the bolt 3-2 is guided by the chamfer at the front part, and enabling the stopper blocking rod assembly to restore the locking state; and fifthly, the function of preventing the door and window lock handle from being opened accidentally by children is realized, when a child pulls the handle of the door and window lock 1 downwards, the handle of the window lock 1 collides with the blocking rod assembly 3, and the blocking rod assembly 3 cannot move because the blocking rod assembly 3 is locked in the pin hole 6-2 of the second sliding rod 6 by the bolt 3-2, so that the handle of the window lock 1 cannot rotate normally, the door and the window cannot be opened normally, and the function of preventing the door and window lock handle from being opened accidentally by children is realized.