CN108060840B

CN108060840B - Child lock, full-half-open limiter and casement window

Info

Publication number: CN108060840B
Application number: CN201610977962.1A
Authority: CN
Inventors: 吕宣布
Original assignee: Ykk Ap Suzhou Co ltd
Current assignee: Ykk Ap Suzhou Co ltd
Priority date: 2016-11-08
Filing date: 2016-11-08
Publication date: 2023-03-14
Anticipated expiration: 2036-11-08
Also published as: CN108060840A

Abstract

The invention provides a child lock, a full-half-open limiter provided with the child lock and a casement window provided with the full-half-open limiter, wherein the child lock comprises a lock body part, a locking part extending outwards from the lock body part and an operating part extending outwards from the lock body part or the locking part, the peripheral surface of the locking part is provided with a first blocking part, one side of the peripheral surface of the operating part, which is close to the first blocking part, is provided with a second blocking part, so that the first blocking part and the second blocking part are adjacently arranged, and the included angle theta between the second blocking part and a stopping part extending along the A direction on a sliding block is an acute angle. When the child lock is switched between unlocking and locking, the child lock does not need to rotate by 90 degrees, and the contact area between the fingers of a user and the child lock when the child lock is rotated is increased through the operating part, so that the operation is very convenient; in addition, after the first stop part is contacted with the fixing pin, the second stop part can rotate towards the direction close to the fixing pin under the condition of mutual acting force, so that the locking reliability is greatly improved.

Description

Child lock, full-half-open limiter and casement window

Technical Field

The invention relates to a child lock installed in a full-half-open limiter of a casement window.

The invention relates to a full-half-open limiter provided with the child lock.

The invention relates to a casement window provided with the full-half-open limiter.

Background

The casement window has the advantages of large opening area, good ventilation, good sealing performance, good sound insulation performance, good heat insulation effect and the like, is widely applied and mainly comprises an inner casement window with a window sash opened towards the indoor direction and an outer casement window with a window sash opened towards the outdoor direction. Meanwhile, in the state that the window sash is opened, in order to avoid the potential safety hazard that children in home fall out of the window seriously, the casement window is also provided with a full-half-open limiter for limiting the opening degree of the window sash relative to the window frame, and the limitation of the full-half-open limiter on the opening degree of the window sash can be removed according to needs, so that the window sash is opened completely.

Prior art of full-half open stops 1

Chinese utility model patent specification with application number 201220349726.2 discloses an angle controller device, it has the stainless steel bottom plate of fixing on the window frame, fix the fixed plate on the casement, the stainless steel pendulum rod, and gliding slider from top to bottom, wherein, the stainless steel bottom plate passes through stainless steel rivet C and is connected with the one end of stainless steel pendulum rod, the slider sets up the front end at the stainless steel bottom plate, the inboard of the stainless steel pendulum rod other end is provided with pendulum rod slider and playback block, the pendulum rod slider passes through stainless steel protruding nail a to be connected and fixes on the stainless steel pendulum rod, be provided with stainless steel protruding nail B on the fixed plate, this stainless steel protruding nail B can slide in the spout of pendulum rod slider. When the slide block is shifted upwards in the vertical direction, the stainless steel convex nail B is separated from the sliding groove of the swing rod slide block, so that the other end of the stainless steel swing rod is separated from the fixed plate, and the window sash can be opened fully. After the slider down stirred in the vertical direction, drive the pendulum rod slider down simultaneously and move, when the pendulum rod slider moved the biggest stroke, make stainless steel protruding nail B can only slide in the notch of stainless steel pendulum rod, at this moment, open the casement and when outdoor pushing away, drive stainless steel protruding nail B toward outdoor removal simultaneously, when stainless steel protruding nail B slided the notch bottommost of stainless steel pendulum rod, the casement can not promote to outdoor again, thereby realize opening of the certain angle of casement, the casement can realize half-opening.

Prior art of full half open stops 2

Chinese patent specification with application number 200510075453.1 discloses a blocking member, which includes: an arm member having an upper end portion swingably attached to a small-diameter portion of the window sash; a guide frame mounted to an inner portion of a frame (i.e., a window frame); a slider as a sliding member mounted to be slidable in the vertical direction with respect to the guide frame; and an operating handle for sliding the slider up and down. The arm member has an arm body, an upper end portion of the arm body is freely swingably attached to the window sash via a base plate, and a lower end portion of the arm body is provided with a locking pin; the guide frame is formed with a guide groove extending in the vertical direction and having an open portion P at the lower end thereof, and an engagement pin introduced from the open portion P is engaged with the guide groove to slide the engagement pin in the vertical direction, and the slider opens and closes the open portion P by vertical operation of the operation knob. When the open portion P is opened in a closed state by moving the slider upward, the arm body swings about the base end portion as a fulcrum, the engaging pin provided at the front end portion slides upward in the guide groove, and the slid engaging pin finally abuts against the upper end portion of the guide groove and cannot slide further. When the window sash is opened by moving the slider downward to open the opening part P in an open state, the engaging pin is disengaged from the opening part P to the outside of the guide groove.

Further, in order to limit the movement of the slider in the half-open state of the window sash, in prior art 1, a child lock is arranged on one side of the slider, and after the child lock rotates downward by 90 degrees, the slider cannot slide upward under the limit of the child lock, so that the window sash is always in the half-open state. Further, in the conventional technique 2, a pin-shaped member is provided in the handle, and when the head of the pin-shaped member is rotated by applying a force to the left direction with a tool such as a fingertip of an operator, a screwdriver, or a dedicated key, the pin-shaped member is engaged with the inside of the handle body of the handle, whereby the tip of the pin-shaped member protrudes from the left side of the handle body, is cut into the notch S, and is engaged with the notch S, whereby the downward sliding of the handle body is restricted, and the downward sliding of the slider is restricted, so that the slider is fixed to the closed position.

Alternatively, when the child lock according to prior art 1 is mounted on the stopper member according to prior art 2, as shown in fig. 1 to 6, the child lock 100 includes a locking portion 101 and a protruding operation portion 102, the child lock 100 is rotatably mounted on a slider 20 which can move up and down, the slider 20 includes a long hole 22 which extends up and down, a fixing pin 60 is fixed to the bottom plate 30 (i.e., a guide frame), the fixing pin 60 is inserted into the long hole 22, and a head portion of the fixing pin 60 having a large diameter is positioned outside the long hole 22. Therefore, when the window sash is in the half-open state, the child lock 100 is locked, and as shown in fig. 4 and 5, the locking portion 101 of the child lock 100 abuts against the anchor pin 60, so that the slider 20 is restrained from sliding downward, and the slider 20 is fixed at a position where the open portion P is closed; when the window sash needs to be opened fully, the child lock 100 is unlocked, as shown in fig. 2 and 3, the child lock 100 is rotated by 90 ° by pushing the operating portion 102 with a finger, and is located on one side of the fixing pin 60, so that the slider 20 can slide downward. Therefore, the child lock in the current blocking member needs to be rotated by at least 90 ° when switching between locking and unlocking, so that the following disadvantages exist:

1. the volume of the child lock body is small, the child lock body is not obvious in the whole blocking component, and the operation is difficult;

2. when the child lock rotates, the child lock cannot be seen from the indoor side, and whether the child lock rotates by 90 degrees cannot be judged or is difficult to judge, so that whether the child lock is locked or unlocked cannot be judged;

3. the operation part is shifted to enable the operation force of the child lock to rotate to be larger;

4. since the operation part is very small, when the child lock is locked or unlocked by operating the operation part with a fingertip, the contact surface is very small, which makes the operation difficult and makes the child lock easy to be fingered off.

Disclosure of Invention

In view of the above disadvantages of the prior art, the present invention provides a child lock, which does not need to rotate 90 ° when switching between locking and unlocking, and is convenient to operate and highly reliable in locking.

In order to achieve the above object, the present invention provides a child lock, which is installed in a full-half-open limiter of a casement window, and is used for limiting a slider to move in a direction a when the full-half-open limiter releases the limitation of the opening degree of a window sash relative to a window frame in a half-open state of the casement window, wherein the slider is provided with a stopper extending in the direction a, the child lock comprises a lock body part, a locking part extending outwards from the lock body part, and an operating part extending outwards from the lock body part or the locking part, the outer peripheral surface of the locking part is provided with a first blocking part, one side of the outer peripheral surface of the operating part, which is close to the first blocking part, is provided with a second blocking part, and therefore, the first blocking part and the second blocking part are adjacently arranged; when the child lock is unlocked, an included angle theta between the second blocking portion and the stopping portion extending along the A direction is an acute angle, or the second blocking portion is parallel to the stopping portion extending along the A direction.

The child lock is rotatably arranged on the sliding block in the full-half-open limiter and is matched with a fixed pin fixed on the bottom plate in the full-half-open limiter to lock or unlock the sliding block to move towards the direction A; when the child lock is unlocked, the first gear part and the second gear part are both positioned on one side of the fixing pin; when the child lock is locked, the child lock in an unlocked state is rotated towards a direction close to the fixing pin until the first stop portion is adjacent to the head of the fixing pin or abuts against the head of the fixing pin, and the second stop portion is adjacent to the stop portion on the sliding block or abuts against the stop portion on the sliding block. When the included angle theta between the second blocking part and the stopping part extending along the direction A is an acute angle, the rotated angle of the second blocking part switched from the unlocking state to the locking state is the included angle theta value or is smaller than the included angle theta value; when the second gear part is parallel to the stop part extending along the direction A, the rotating angle of the second gear part from the unlocking state to the locking state is an acute angle, namely the second gear part does not need to rotate 90 degrees to realize the switching between unlocking and locking, and the contact area between the fingers of a user and the child lock is increased when the child lock is rotated through the operating part, so that the operation is very convenient. Particularly, after the first blocking part and the fixing pin start to contact and bear force, the second blocking part can rotate towards the direction close to the fixing pin under the condition of interaction force, and the locking reliability is greatly improved.

In a further preferred embodiment of the above technical solution, an included angle θ between the second stopper and the stopper is 20 ° to 60 °, and the included angle θ is preferably 30 °, 40 °, 45 °, 50 °, 60 °, which improves the operation convenience and at the same time enables the child lock to have better locking reliability.

In a further preferred embodiment of the above technical solution, one end of the second stop portion close to the locking portion extends to the first stop portion, so that the first stop portion is connected with the second stop portion, and the structure of the child lock is optimized.

In a further preferred embodiment of the present invention, the locking portion has a rounded portion at an end of the first stopper portion away from the operating portion, and the rounded portion is disposed at an end of the first stopper portion close to the fixing pin. When children lock unblock and the mutual switching of executing the lock, the one end that first shelves portion was equipped with fillet all is the outer peripheral face of keeping away from the fixed pin after the outer peripheral face that is close to the fixed pin earlier, the event forms fillet portion after the one end rounding that is close to the fixed pin with first shelves portion is handled, make the fillet portion of the first shelves portion of in-process at rotatory children lock can not contact with the outer peripheral face of fixed pin, ensure that children lock is convenient and accurately switch to executing the lock state or unblock state, thereby improve the operation convenience.

In a further preferred aspect of the above technical solution, the surface of the locking portion or the operation portion is provided with a rotation hole, so that the child lock can be rotated by using an object such as a finger, a key, a screwdriver, etc. to match with the rotation hole, thereby realizing a diversified operation.

Preferably, the first blocking portion is a plane or a circular arc surface, and the second blocking portion is a plane. When the first blocking part is a plane, the first blocking part is perpendicular to the stopping part, so that an included angle beta between the first blocking part and the second blocking part is an obtuse angle, and the included angle beta =90 ° + the included angle theta.

Particularly, the child lock with the structure is an integral component, so that the child lock is convenient to process and manufacture, and the integral structural strength of the child lock can be improved.

The invention also provides a full-half-open limiter, which comprises a bottom plate, an arm component and a slide block movably arranged on the bottom plate, wherein the bottom plate is arranged on a window frame, one end of the arm component is rotatably connected with a window sash, or the bottom plate is arranged on the window sash, one end of the arm component is rotatably connected with the window frame, the other end of the arm component is detachably connected with the bottom plate, a long hole extending along the moving direction of the slide block is arranged in the slide block, a fixed pin penetrates through the long hole, the head part of the fixed pin is positioned outside the long hole, the tail part of the fixed pin is fixed in the bottom plate, a stop part extending along the direction A is arranged on one side of the long hole of the slide block, and the child lock is rotatably arranged on one side of the long hole of the slide block; when the child lock is unlocked, the first gear part and the second gear part are both positioned on the same side of the head of the fixing pin; when the child lock is locked, the first stop portion is close to the head of the fixing pin or abuts against the head of the fixing pin, the second stop portion is close to the stop portion on the sliding block or abuts against the stop portion on the sliding block, at the moment, the head of the fixing pin is matched with the child lock to limit the full-half-open limiting device to move towards the direction A when the opening limit of the window sash relative to the window frame is relieved, so that the casement window keeps the half-open state, and the safety is improved.

Further, the lock body part of the child lock is rotatably connected to the slider through a connecting pin, and the connecting pin is positioned above the head part of the fixing pin; when the child locks, at least one part of the first blocking part is positioned above the head of the fixing pin, so that the locking reliability is better improved.

The invention also provides a casement window which is provided with the full-half-open limiter.

As described above, the child lock, the full-half open stopper, and the casement window according to the present invention have the following advantageous effects:

when the child lock is switched between unlocking and locking, the child lock does not need to rotate 90 degrees, and the contact area between the fingers of a user and the child lock when the child lock is rotated is increased through the operation part, so that the operation is very convenient; in addition, after the first stop part is contacted with the fixing pin, the second stop part can rotate towards the direction close to the fixing pin under the condition of mutual acting force, so that the locking reliability is greatly improved.

Drawings

Fig. 1 is a schematic structural view of a casement window in the prior art.

Fig. 2 is a schematic structural diagram of the child lock in fig. 1 in an unlocked state.

Fig. 3 is a diagram of the position relationship of the child lock and the pin of fig. 2.

Fig. 4 is a schematic structural view of the child lock in fig. 1 in a locked state.

Fig. 5 is a view showing the positional relationship between the child lock and the pin of fig. 4.

Fig. 6 is a schematic structural view of the child lock shown in fig. 1 to 5.

Fig. 7 is a schematic structural view of a child lock according to a first embodiment of the present invention.

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

Fig. 9 is a schematic structural view of the full-half open stopper according to the present invention, in which the child lock of the first embodiment is in an unlocked state.

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

Fig. 11 is a view showing the positional relationship between the child lock and the fixing pin in fig. 9.

Fig. 12 is a schematic structural view of the full-half open stopper according to the present invention, in which the child lock of the first embodiment is in a locked state.

Fig. 13 is a front view of fig. 12.

Fig. 14 is a view showing the positional relationship between the child lock and the fixing pin in fig. 12.

Fig. 15 is a force diagram of the child lock of the present invention in a locked state.

Fig. 16 is a schematic structural view of a child lock according to a second embodiment of the present invention.

Fig. 17 is a diagram showing the positional relationship between the fixing pin and the child lock according to the second embodiment in the unlocked state.

Fig. 18 is a diagram showing the positional relationship between the fixing pin and the child lock according to the second embodiment in the locked state.

Fig. 19 is a structural schematic diagram of a casement window in the application.

Fig. 20 is an enlarged view of the frame I of fig. 19.

Description of the element reference numerals

10. Children's lock

11. Lock body part

111. Mounting round hole

12. Locking part

121. First gear part

122. Fillet part

13. Operation part

131. Second gear part

14. Rotary hole

20. Sliding block

21. Stopper part

22. Long hole

23. Bump

30. Bottom plate

40. Arm member

50. Window sash

501. Window sash frame

60. Fixing pin

61. Head part

70. Operating handle

80. Connecting pin

90. Window frame

Detailed Description

The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will become apparent to those skilled in the art from the present disclosure.

It should be understood that the structures, ratios, sizes, and the like shown in the drawings and described in the specification are only used for matching with the disclosure of the specification, so as to be understood and read by those skilled in the art, and are not used to limit the conditions under which the present invention can be implemented, so that the present invention has no technical significance, and any structural modification, ratio relationship change, or size adjustment should still fall within the scope of the present invention without affecting the efficacy and the achievable purpose of the present invention. In addition, the terms such as "upper", "lower", "left", "right" and "middle" used in the present specification are for clarity of description, and are not intended to limit the scope of the present invention, and changes or modifications of the relative relationship may be made without substantial technical changes.

The following examples define the directions as follows: defining a height direction of the window sash 50 as a vertical direction, a width direction of the window sash 50 as a front-rear direction, a thickness direction of the window sash 50 as a left-right direction, an indoor side as a left direction, and an outdoor side as a right direction; alternatively, as shown in fig. 10 or 13, the upper side of the paper surface is the upward direction, the lower side of the paper surface is the downward direction, the left side of the paper surface is the left direction, the right side of the paper surface is the right direction, the front side of the paper surface is the forward direction, and the back side of the paper surface is the backward direction.

The invention provides a child lock 10 which is installed in a full-half-open limiter of a casement window and is used for limiting the sliding block 20 to move towards the direction A when the full-half-open limiter releases the limitation of the opening degree of a window sash 50 relative to a window frame 90 in a half-open state of the casement window. The structure of the full-open stopper is the prior art, such as a blocking member disclosed in chinese patent specification with application number 200510075453.1, as shown in fig. 1, the full-open stopper mainly includes a base plate 30, a slider 20 movably mounted on the base plate 30, an operating handle 70 driving the slider 20 to move, and an arm member 40, wherein the base plate 30 is mounted on a window frame 90, one end of the arm member 40 is rotatably connected to a sash frame 501 of a sash 50, and the other end of the arm member 40 is detachably connected to the base plate 30; alternatively, as shown in fig. 19 and 20, the base plate 30 is mounted on a window frame 501 of the window 50, one end of the arm member 40 is rotatably connected to the window frame 90, and the other end of the arm member 40 is detachably connected to the base plate 30. When the operating handle 70 drives the slider 20 to move upward along the vertical direction, the arm member 40 is connected with the bottom plate 30 and cannot be taken off from the bottom plate 30, so that the opening degree of the window sash 50 relative to the window frame 90 is limited, and the casement window is in a half-open state; when the operating handle 70 drives the slider 20 to move downward in the vertical direction, the arm member 40 can be detached from the bottom plate 30, so that the limitation of the opening degree of the window sash 50 relative to the window frame 90 is released, and the casement window is in a fully open state. Therefore, the direction a is a downward direction in this embodiment, and the child lock 10 is used for limiting the downward movement of the slider 20 in the half-open state of the casement window.

As shown in fig. 7 to 9, the child lock 10 according to the present invention includes a lock body 11 having a rotation center O, the lock body 11 is substantially disc-shaped and is rotatably mounted on a front surface of the slider 20 facing a user through a connecting pin 80, a mounting circular hole 111 is formed in a middle of the lock body 11, the connecting pin 80 passes through the mounting circular hole 111, and thus a center of the mounting circular hole 111 is the rotation center O of the lock body 11 and the child lock 10. The child lock 10 further includes a locking portion 12 and an operating portion 13, the locking portion 12 extends outward from the outer peripheral surface of the lock body 11 in a direction away from the rotation center O of the lock body 11, and the front surface of the locking portion 12 protrudes forward from the front surface of the lock body 11; the operating part 13 extends outwards from the outer peripheral surface of the lock body part 11 or the locking part 12 in a direction away from the rotation center O of the lock body part 11, and the front surface of the operating part 13 also protrudes forwards from the front surface of the lock body part 11, but is flush with the front surface of the locking part 12; the outer peripheral surface of the locking part 12 has a first stopper 121, and the outer peripheral surface of the operating part 13 has a second stopper 131 on the side close to the first stopper 121, so the first stopper 121 and the second stopper 131 are disposed adjacently.

As shown in fig. 9 to 14, the full-open stopper further includes a fixing pin 60, the slider 20 is provided with a long hole 22 extending up and down along the moving direction of the slider 20, the tail portion of the fixing pin 60 passes through the long hole 22 and then is fixed in the bottom plate 30, the head portion 61 of the fixing pin 60 has a diameter larger than the width of the long hole 22 in the left-right direction, so that the head portion 61 of the fixing pin 60 cannot pass through the long hole 22 and is located at the front side of the long hole 22, and the child lock 10 is located at the left side or the right side of the long hole 22 on the slider 20; since the slider 20 is further provided with the operating handle 70 on the left side thereof near the room, the child lock 10 is preferably provided on the right side of the long hole 22 in this embodiment in order to facilitate the rotation of the child lock 10. The slider 20 is further provided with a protrusion 23 protruding forward and located below the elongated hole 22 on the front surface thereof, the protrusion 23 extends upward and downward, and the right side surface of the protrusion 23 constitutes a stopper 21, so that the stopper 21 is located at the lower right side of the elongated hole 22 and extends vertically upward and downward in the direction a. When the casement window is in the half-open state, the slider 20 moves to the highest point, so the lower end of the long hole 22 on the slider 20 abuts against the fixed pin 60, at this time, the rotation center O of the child lock 10 is located at the upper right side of the fixed pin 60, or in other words, the connecting pin 80 is located above the right side of the head 61 of the fixed pin 60, that is, the position of the connecting pin 80 in the vertical direction is higher than the head 61 of the fixed pin 60, and then the slider 20 is limited from moving downward by the cooperation of the child lock 10 and the fixed pin 60.

First embodiment of child lock 10

When the child lock 10 is in the unlocked state, as shown in fig. 9 to 11, the first step portion 121 and the second step portion 131 are both located on the right side of the fixing pin 60, and the first step portion 121 is closer to the fixing pin 60 than the second step portion 131, the first step portion 121 is substantially horizontal and located above the stopper portion 21 on the slider 20, the second step portion 131 is located on the right side of the stopper portion 21, the second step portion 131 is inclined to the lower right side with respect to the stopper portion 21 extending vertically, and an included angle θ between the second step portion 131 and the stopper portion 21 is an acute angle. When the child lock 10 needs to be in the locked state, the child lock 10 is shifted by the operating portion 13, so that the child lock 10 rotates clockwise in a direction approaching the fixing pin 60, as shown in fig. 12 to 14, until the first step 121 is adjacent to the head 61 of the fixing pin 60 or abuts against the head 61 of the fixing pin 60, and the second step 131 is adjacent to the stopper 21 on the slider 20 or abuts against the stopper 21 on the slider 20, so that at least a part of the first step 121 is located right above the outer peripheral surface of the upper right portion of the head 61 of the fixing pin 60, or the left section of the first step 121 already passes over the right edge of the head 61 of the fixing pin 60, and the right section of the first step 121 does not pass over the right edge of the head 61 of the fixing pin 60 to the left, but remains located on the right side of the head 61 of the fixing pin 60, so that the left and right ends of the first step 121 are located on the left and right sides of the right edge of the head 61 of the fixing pin 60, respectively, and when the slider 20 moves downward, the child lock can be locked by the first step 121 and the slider 20 abutting against the head 60 of the slider 20 in the child lock 10. Because the angle θ between the second gear portion 131 and the stopper portion 21 extending along the direction a on the slider 20 is an acute angle when the child lock 10 is in the unlocked state, the angle through which the second gear portion 131 is rotated from the unlocked state to the locked state is the angle θ value or smaller than the angle θ value, that is, the child lock 10 does not need to be rotated by 90 ° to realize the switching between the unlocking state and the locking state, the locked state can be confirmed indoors, the rotation amount is small, and the operability is better. Meanwhile, the length and the surface area of the child lock 10 are increased by setting the operation portion 13, so that the operation portion 13 is easy to see, and when the child lock 10 is rotated through the operation portion 13, the contact portion between the operation portion 13 and the child lock 10 is enlarged, the force is more easily applied to the child lock 10, the child lock 10 is rotated, the operability is improved, the operation force is reduced, and the operation of mutual switching between locking and unlocking is very convenient.

In particular, when it is necessary to switch the child lock 10 to the locked state, even if the child lock 10 is not rotated to the predetermined locked position due to a small angle of rotation, that is, even if there are gaps between the first stopper 121 and the head 61 of the fixing pin 60 and between the second stopper 131 and the stopper 21 of the slider 20, the child lock 10 is in close relation, but at least a part of the first stopper 121 is located directly above the upper right peripheral surface of the head 61 of the fixing pin 60, and therefore, when the slider 20 slides downward, the first stopper 121 of the locking portion 12 comes into contact with the fixing pin 60 and receives a force, as shown in fig. 15, the locking portion 12 applies a force to the head 61 of the fixing pin 60, and based on the principle of the force and the reaction force, the head 61 of the fixing pin 60 applies a reaction force F to the locking portion 12, and the reaction force F causes the child lock 10 to rotate clockwise in a direction closer to the fixing pin 60 as a whole until the second stopper 131 abuts against the stopper 21, the child lock 10 is rotated to the predetermined locked position, and the child lock 10 is automatically locked, thereby increasing the reliability of the child lock and the child lock 10 is increased.

Further, in the present embodiment, the included angle θ between the second step portion 131 and the stopper portion 21 is 20 ° to 60 °, and the included angle θ is preferably 30 °, 40 °, 45 °, 50 °, 60 °, which improves the operation convenience and simultaneously enables the child lock 10 to have better locking reliability. As shown in fig. 8, the second stop portion 131 extends to the right end of the first stop portion 121 near the upper end of the locking portion 12, so that the first stop portion 121 is engaged with the second stop portion 131, and the structure of the child lock 10 is optimized. The first stopper 121 is a plane or an arc surface, and the second stopper 131 is a plane; when the first stopper 121 is a plane, the first stopper 121 is perpendicular to the stopper 21, so an included angle β between the first stopper 121 and the second stopper 131 is an obtuse angle, and the included angle β =90 ° + the included angle θ.

Second embodiment of child lock 10

With respect to the first embodiment of the child lock 10, as shown in fig. 16 and 17, when the child lock 10 in the second embodiment is in the unlocked state, the second step portion 131 on the operating portion 13 is parallel to the stopper portion 21 extending in the a direction, so the second step portion 131 also extends vertically up and down, and the first step portion 121 and the second step portion 131 are both located on the right side of the pin 60. When the child lock 10 needs to be in the locking state, the child lock 10 is shifted by the operating portion 13 to rotate the child lock 10 clockwise in a direction approaching the fixing pin 60 until the first stopper 121 is adjacent to the head 61 of the fixing pin 60 or abuts against the head 61 of the fixing pin 60, and the lower end of the second stopper 131 is adjacent to the stopper 21 on the slider 20 or abuts against the stopper 21 on the slider 20, as shown in fig. 18, so that the angle through which the child lock 10 rotates when switching from unlocking to locking is smaller than 90 °, and similarly, "the child lock 10 rotates in a direction of locking when being subjected to force", can be realized.

Preferably, as shown in fig. 8, the locking portion 12 has a rounded portion 122 at the left end of the first stopper portion 121 far from the operating portion 13, so the rounded portion 122 is disposed at the left end of the first stopper portion 121 near the fixing pin 60. When the child lock 10 is switched between unlocking and locking, the left end of the first stopper 121, which is provided with the rounded portion 122, is first close to the outer peripheral surface of the fixing pin 60 and then is far away from the outer peripheral surface of the fixing pin 60, so that the rounded portion 122 is formed by rounding the left end of the first stopper 121, which is close to the fixing pin 60, on one hand, the outer peripheral surface of the left end of the first stopper 121 is smoother, and on the other hand, the left end of the first stopper 121 is closer to the rotation center O of the child lock 10 and is far away from the head 61 of the fixing pin 60, so that the rounded portion 122 of the left end of the first stopper 121 does not contact with the outer peripheral surface of the fixing pin 60 during the rotation of the child lock 10, thereby ensuring that the child lock 10 is conveniently and accurately switched to the locking state or the unlocking state, and improving the convenience of operation.

Further, as shown in fig. 7 and 8, since the surface of the locking part 12 or the operation part 13 is formed with the rotation hole 14, the child lock 10 can be rotated by using a finger of a user, a key, a screwdriver, or the like to be engaged with the rotation hole 14, thereby realizing a diversified operation.

In particular, the child lock 10 having the above-described structure is a one-piece member, thereby facilitating the manufacturing of the child lock 10 and also improving the overall structural strength of the child lock 10.

The invention also provides a full-half-open limiter, which also has two embodiments, one embodiment of the full-half-open limiter is shown in fig. 1 and comprises a bottom plate 30 installed on a window frame 90, an arm component 40 and a slide block 20 movably installed on the bottom plate 30, wherein one end of the arm component 40 is rotatably connected to a window sash frame 501 of a window sash 50, the other end of the arm component 40 is detachably connected with the bottom plate 30, the arm component 40 is connected with or detached from the bottom plate 30 through the movement of the slide block 20, and further the full-half-open limiter limits the opening degree of the window sash 50 relative to the window frame 90 or relieves the opening degree limit of the window sash 50 relative to the window frame 90; as shown in fig. 9, the slider 20 is provided with a long hole 22 extending along the moving direction of the slider 20, a fixing pin 60 is inserted into the long hole 22, the head 61 of the fixing pin 60 is located outside the long hole 22, the tail of the fixing pin 60 is fixed in the bottom plate 30, the slider 20 is provided with a stop portion 21 extending along the direction a on one side of the long hole 22, and the child lock 10 as described above is rotatably mounted on one side of the long hole 22 of the slider 20; when the child lock 10 is unlocked, the first stop 121 and the second stop 131 are both located on the same side of the head 61 of the fixing pin 60; when the child lock 10 is locked, the first stop 121 is adjacent to the head 61 of the fixing pin 60 or abuts against the head 61 of the fixing pin 60, and the second stop 131 is adjacent to the stop 21 of the slider 20 or abuts against the stop 21 of the slider 20, so that the head 61 of the fixing pin 60 and the child lock 10 cooperate to limit the movement of the slider 20 in the direction a when the full-half-open stopper is released from the limitation of the opening degree of the window sash 50 relative to the window frame 90, and the casement window is kept in the half-open state, thereby improving the safety.

A second embodiment of the full-open stopper is shown in fig. 19 and 20, and includes a bottom plate 30 mounted on a window frame 501 of the window sash 50, an arm member 40, and a slider 20 movably mounted on the bottom plate 30, wherein one end of the arm member 40 is rotatably connected to the window frame 90, the other end of the arm member 40 is detachably connected to the bottom plate 30, and the arm member 40 is connected to or detached from the bottom plate 30 by moving the slider 20, so that the full-open stopper restricts the opening of the window sash 50 relative to the window frame 90 or releases the restriction of the opening of the window sash 50 relative to the window frame 90. The rest of the structure of the full-half-open stopper in the second embodiment is the same as that of the full-half-open stopper in the first embodiment, that is: as shown in fig. 9, a long hole 22 extending along the moving direction of the slider 20 is opened in the slider 20, a fixing pin 60 is inserted in the long hole 22, a head 61 of the fixing pin 60 is located outside the long hole 22, a tail of the fixing pin 60 is fixed in the bottom plate 30, the slider 20 is provided with a stop portion 21 extending along the a direction at one side of the long hole 22, and the child lock 10 as described above is rotatably mounted on one side of the long hole 22 of the slider 20; when the child lock 10 is unlocked, the first stop 121 and the second stop 131 are both located on the same side of the head 61 of the fixing pin 60; when the child lock 10 is locked, the first stop 121 is adjacent to the head 61 of the fixing pin 60 or abuts against the head 61 of the fixing pin 60, and the second stop 131 is adjacent to the stop 21 of the slider 20 or abuts against the stop 21 of the slider 20, so that the head 61 of the fixing pin 60 and the child lock 10 cooperate to limit the movement of the slider 20 in the direction a when the full-half-open stopper is released from the limitation of the opening degree of the window sash 50 relative to the window frame 90, and the casement window is kept in the half-open state, thereby improving the safety.

The invention also provides a casement window, as shown in fig. 1 or fig. 19, the full-half-open limiting stopper is arranged on the casement window.

In conclusion, the present invention effectively overcomes various disadvantages of the prior art and has high industrial utilization value.

The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Those skilled in the art can modify or change the above-described embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.

Claims

1. The utility model provides a children's lock installs in the full run-flat window stopper for the slider (20) removes to A direction when limiting flat-open window under the half-open state, full run-flat window stopper remove the aperture restriction of casement (50) relative window frame (90), be equipped with on slider (20) along the detent (21) that A direction extends, its characterized in that: the child lock (10) comprises a lock body part (11), a locking part (12) extending outwards from the lock body part (11), and an operating part (13) extending outwards from the lock body part (11) or the locking part (12), wherein the outer peripheral surface of the locking part (12) is provided with a first blocking part (121), and one side, close to the first blocking part (121), of the outer peripheral surface of the operating part (13) is provided with a second blocking part (131); when the child lock (10) is unlocked, an included angle theta between the second stop portion (131) and the stopping portion (21) extending along the A direction is an acute angle, or the second stop portion (131) is parallel to the stopping portion (21) extending along the A direction.

2. The child lock of claim 1, wherein: the included angle theta between the second gear part (131) and the stop part (21) is 20-60 degrees.

3. The child lock of claim 1, wherein: the included angle theta between the second gear portion (131) and the stopping portion (21) is 30 degrees or 45 degrees.

4. The child lock of claim 1, wherein: one end of the second stop part (131) close to the locking part (12) extends to the first stop part (121).

5. The child lock of claim 1, wherein: the locking portion (12) has a rounded portion (122) at an end of the first rail portion (121) remote from the operating portion (13).

6. The child lock of claim 1, wherein: the surface of the locking part (12) or the operating part (13) is provided with a rotary hole (14).

7. The child lock of claim 1, wherein: the first gear part (121) is a plane or an arc surface, and the second gear part (131) is a plane.

8. A child lock according to claim 7, wherein: an included angle beta between the first gear portion (121) and the second gear portion (131) is an obtuse angle.

9. Child lock according to any of claims 1-8, characterized in that: the child lock (10) is a unitary member.

10. The utility model provides a full-half-open stopper, includes bottom plate (30), arm component (40) and movably installs slider (20) on bottom plate (30), bottom plate (30) are installed in window frame (90), and the one end of arm component (40) rotationally connects in casement (50), or bottom plate (30) are installed in casement (50), and the one end of arm component (40) rotationally connects in window frame (90), the other end and bottom plate (30) of arm component (40) can shirk and be connected, open slot hole (22) that extend along slider (20) moving direction in slider (20), wear to be equipped with a fixed pin (60) in this slot hole (22), head (61) of fixed pin (60) are located outside slot hole (22), and the afterbody of fixed pin (60) is fixed in bottom plate (30), slider (20) are equipped with in one side of slot hole (22) along stopper portion (21) that A direction extends, its characterized in that: the sliding block (20) is rotatably provided with a child lock (10) as claimed in any one of claims 1-9 at one side of the long hole (22); when the child lock (10) is unlocked, the first stop (121) and the second stop (131) are both positioned on the same side of the head (61) of the fixing pin (60); when the child lock (10) is locked, the first stop part (121) is close to the head part (61) of the fixing pin (60) or abuts against the head part (61) of the fixing pin (60), and the second stop part (131) is close to the stop part (21) on the sliding block (20) or abuts against the stop part (21) on the sliding block (20).

11. The full ajar limiter according to claim 10, wherein: the lock body part (11) of the child lock (10) is rotatably connected to the slider (20) through a connecting pin (80), and the connecting pin (80) is positioned on the upper side of the head part (61) of the fixing pin (60); when the child lock (10) is locked, at least one part of the first stop part (121) is positioned above the head part (61) of the fixing pin (60).

12. A flat-open window which characterized in that: a full ajar stop as claimed in claim 10 or 11 is mounted.