CN216110224U - Door and window opening limiter and sliding door and window - Google Patents

Abstract

The utility model provides a door and window opening limiter and a sliding door and window, wherein the door and window opening limiter comprises a shell, a driving lock arranged on the shell, and a transmission sliding plate and a limiter which are movably arranged on the shell, wherein the driving lock is in transmission fit with the transmission sliding plate, and the transmission sliding plate is in transmission fit with the limiter; when the limiter does not protrude outwards from the shell in the indoor and outdoor directions, the limiter is in a closed state; when the driving lock drives the transmission sliding plate to move towards the direction close to the position limiter, the transmission sliding plate drives the position limiter to move, at least one part of the position limiter protrudes outwards from the shell in the indoor and outdoor directions, and the position limiter is in a working state. This application orders about the driver through the transmission cooperation between drive lock and the transmission slide and the transmission cooperation between transmission slide and the stopper and to outstanding to indoor side, and the driving chain is simple to simplify the overall structure of door and window opening limiter, just also correspondingly reduce the cost of door and window opening limiter.

Description

Door and window opening limiter and sliding door and window

Technical Field

The utility model relates to the field of doors and windows, in particular to a door and window opening limiter and a sliding door and window provided with the door and window opening limiter.

Background

At present, as shown in fig. 1, sliding doors and windows include an inner sliding door 100 and an outer sliding door 200 that can move left and right, and the sliding doors and windows are opened and closed by the left and right movement of the inner sliding door 100 and the outer sliding door 200. In order to ensure the safety of the sliding door, a door/window opening limiter 300 is fixedly installed on the indoor side of the frame of the outer sliding door 200 of very few sliding doors and windows to limit the movement amount of the inner sliding door 100 or the outer sliding door 200, so as to limit the size of the opening of the sliding door and window. By adjusting the installation position of the door/window opening stopper 300 on the sliding out door 200, different opening amounts of the sliding door and window can be restricted. Such as: in some embodiments, the opening of the sliding door in the left-right direction may be limited to 110mm, which does not allow the head of the child to pass through, thereby avoiding various dangers caused by the child extending the head out of the sliding door.

However, in the prior art, most sliding doors and windows are not provided with door and window opening limiters, and only a very few sliding doors and windows are provided with door and window opening limiters, so that the majority of sliding doors and windows have potential safety hazards in use. In addition, the existing door and window opening limiter has a complex structure and a large number of parts, so that the price is high, and the cost of the sliding door and the sliding window is increased. In addition, after the existing door and window opening limiter is used for a long time, the main parts are rusted or even fail, and the integral use of the sliding door and the sliding window is influenced.

SUMMERY OF THE UTILITY MODEL

In view of the above-mentioned drawbacks of the prior art, the present invention provides a door and window opening limiter, which is simple in structure and low in cost.

In order to achieve the purpose, the utility model provides a door and window opening limiter, which comprises a shell, a driving lock arranged on the shell, and a transmission sliding plate and a limiter which are movably arranged on the shell, wherein the driving lock is in transmission fit with the transmission sliding plate, and the transmission sliding plate is in transmission fit with the limiter; when the stopper does not protrude outward from the housing in the indoor-outdoor direction, the stopper is in a closed state; when the driving lock drives the transmission sliding plate to move towards the direction close to the limiting stopper, the transmission sliding plate drives the limiting stopper to move, so that at least one part of the limiting stopper protrudes outwards from the shell in the indoor and outdoor directions, and the limiting stopper is in a working state.

The door and window opening limiter is arranged in the lower frame of the outer sliding door in the sliding door and window and at the indoor side of the lower frame of the outer sliding door. When the stopper is in the closed state, the stopper does not protrude outwards from the shell on the indoor and outdoor sides, the stopper cannot be in contact with an inner sliding door in the sliding door and window, no limitation can be generated on the left and right movement of the inner sliding door in the sliding door and the outer sliding door, and the opening amount of the sliding door and window cannot be limited. When the operation drive lock makes the stopper be in operating condition, then at least partly outwards be outstanding towards indoor side in following the casing on the stopper, at this moment, in the sliding door in the in-process that the sliding door moved about or the outer sliding door moved about, the protruding part of stopper can with the cooperation of inner sliding door butt, thereby the restriction is moved about or the outer sliding door of sliding door, just also restrict the shedding volume of sliding door, make sliding door have a less shedding volume, for example inject sliding door's shedding volume within 110mm, avoid because of children with the head outwards stretch out in the sliding door and various dangers that lead to in the sliding door, improve safety in utilization. Particularly, the driving chain is simple by driving the driver to protrude towards the indoor side through the transmission fit between the driving lock and the transmission sliding plate and the transmission fit between the transmission sliding plate and the limiter, so that the overall structure of the door and window opening limiter is simplified, and the cost of the door and window opening limiter is correspondingly reduced.

Further, in the door and window opening limiter that this application relates to, the motion mode of drive lock is for rotating, the motion mode of transmission slide is the translation, the motion mode of stopper is for rotating. Based on this, the drive lock is rotatably installed in the housing, the transmission slide plate is movably installed in the housing, the stopper is rotatably installed in the housing, and the rotation axis of the stopper is perpendicular to the indoor and outdoor direction. The transmission matching structure between the driving lock and the transmission sliding plate enables the rotation of the driving lock to drive the transmission sliding plate to translate, and the transmission matching structure between the transmission sliding plate and the limiting stopper enables the translation of the transmission sliding plate to drive the limiting stopper to rotate around the rotation axis of the limiting stopper.

Further, the transmission matching structure between the driving lock and the transmission slide plate is preferably as follows: the bottom of the driving lock is provided with a connecting convex part which is eccentrically arranged with the rotating center of the driving lock, the transmission sliding plate is provided with a connecting sliding groove, and the connecting convex part is positioned in the connecting sliding groove. Preferably, the outer peripheral surface of the connecting convex part is provided with an arc matching surface, and the arc matching surface is in contact fit with the groove wall of the connecting sliding groove, so that no matching dead angle exists between the connecting convex part and the groove wall of the connecting sliding groove, the rotation of the driving lock is smoother, and the operation comfort level of a user in rotating the driving lock is improved.

Preferably, a rotating groove is formed in the top surface of the driving lock, the rotating groove can be a straight groove or a cross-shaped groove, and a user can rotate the driving lock conveniently to switch the working state and the closing state of the limiting stopper.

Furthermore, a first marking groove located at one end of the rotating groove is formed in the top surface of the driving lock, and a second marking groove located on the outer peripheral side of the driving lock is formed in the top surface of the shell; when the limiting stopper is in a closed state, the first marking groove is far away from the second marking groove; when the limiting stopper is in a working state, the first marking groove is over against the second marking groove. So, through the cooperation in first mark groove and second mark groove, the user can know clearly and directly perceivedly whether the stopper is in operating condition, is in the closed condition, and the design is more humanized.

Further, the mounting structure of the driving lock in the shell is as follows: the shell is provided with a lock mounting part, a through lock mounting cavity is formed in the lock mounting part, and the driving lock is rotatably mounted in the lock mounting cavity of the shell; at least one anti-falling claw part is arranged on the outer peripheral side of the driving lock and is clamped with the bottom surface of the lock mounting part, and the driving lock is prevented from being separated from a lock mounting cavity of the shell.

Because the lock installation cavity is the structure that link up, so door and window opening limiter still includes the closing plate, the closing plate is fixed in the casing to the bottom of shutoff lock installation cavity, then the closing plate can separate indoor side and outdoor side, avoids indoor side and outdoor side to locate the intercommunication at the lock installation cavity of casing, just also effectively avoids the air of outdoor side to reveal indoor through the lock installation cavity, guarantees sliding door's gas tightness.

Furthermore, the lock mounting part is provided with a stop lug on the wall of the lock mounting cavity, and the periphery of the driving lock is provided with a closing limit convex part and a working limit convex part; when the limiter is in a closed state, the closing limit convex part of the driving lock is in butt fit with one side surface of the stop convex block of the shell; when the limiter is in a working state, the working limit convex part of the driving lock is in butt fit with the other side surface of the stop convex block of the shell. Therefore, in the process of rotating the driving lock, the driving lock can be conveniently and accurately rotated to the first position corresponding to the closed state of the limiting stopper and the second position corresponding to the working state of the limiting stopper.

In order to further promote the use of rotating the drive lock and feel, in this application, when the drive lock rotates to the first position that corresponds stopper closed condition and corresponds the second position of stopper operating condition, door and window opening stopper can both produce the stop and feel, or click and feel, and realization structure has following two kinds:

the implementation structure for generating click feeling is as follows: the lock mounting part is provided with a closed pause groove and a working pause groove on the cavity wall of the lock mounting cavity, the driving lock is provided with an accommodating cavity, a first spring and a top ball are mounted in the accommodating cavity, one end of the first spring is kept, the other end of the first spring is in contact fit with the top ball, and the top ball is in contact fit with the cavity wall of the lock mounting cavity; when the stopper is in a closed state, the top bead is positioned in the closed pause groove; when the limiter is in a working state, the top bead is positioned in the working pause groove. Therefore, when the limiter is switched to a working state from a closed state by rotating the driving lock, the stopping sense and the clicking sense can be generated by clamping the top bead into the working stopping groove; in a similar way, by rotating the driving lock, the limiter is switched to a closed state from a working state, and a stop feeling and a click feeling are also generated when the top bead is clamped into the closed stop groove, so that a user can intuitively feel that the driving lock is rotated in place, and the use feeling of the rotating driving lock is improved.

The second implementation structure for generating click feeling: the lock mounting part is provided with a closed pause groove and a working pause groove on the cavity wall of the lock mounting cavity, the peripheral surface of the driving lock is provided with a pause convex part, and the pause convex part is in contact fit with the cavity wall of the lock mounting cavity; when the retainer is in a closed state, the dwell lobe is located in the closed dwell groove; when the limiter is in a working state, the stop convex part is positioned in the working stop groove. Therefore, when the limiter is switched to a working state from a closed state by rotating the driving lock, the stopping feeling and the clicking feeling can be generated by clamping the stopping convex part into the working stopping groove; similarly, through rotating the drive lock, when making the stopper switches to the closed state from operating condition, can produce the sense of stopping, click through pausing convex part card income closed pause recess and feel to make the user can feel directly perceivedly that the drive lock has rotated and targets in place, promote to rotate the use sense of drive lock.

Further, the resin spare of drive lock formula structure as an organic whole to can avoid the drive lock to rust, make drive lock durable, just also guarantee the whole life of door and window opening limiter. In addition, the driving lock of the resin piece has certain elasticity, and the clicking feeling is more favorably generated through the pause convex part.

Further, the mounting structure of the stopper in the housing is as follows: the casing is equipped with the stopper installation department, set up the stopper installation cavity in the stopper installation department and with the supported hole of stopper installation cavity intercommunication, be equipped with pivot portion on the outer wall of stopper integratively, pivot portion extends along the axis of rotation axial of stopper, the stopper holding is in the stopper installation cavity of casing, the pivot portion of stopper rotationally supports in the supported hole of casing. The pivot portion is the partly of stopper, can omit to adopt parts such as extra round pin axle to realize normal running fit, reduces part quantity, just also simplifies the structure, reduce cost.

Further, door and window opening limiter still includes the holding and is in second spring in the stopper installation cavity, the second spring extends along indoor outside direction, the one end of second spring and the chamber bottom surface butt cooperation of stopper installation cavity, the other end and the stopper one end butt cooperation of keeping away from the transmission slide of second spring. When the limiter is in a working state, the second spring is in a compressed state; thus, after the transmission slide plate is reset, the limiting stopper is reset to the closed state through the spring force of the second spring.

Preferably, one end of the limiter, which is close to the transmission sliding plate, is provided with an anti-exposure part; when the stopper is in operating condition, prevent the dead zone between part shutoff stopper and the stopper installation department that exposes, improve the visual effect of door and window opening limiter, it is more pleasing to the eye.

Further, the transmission matching structure between the transmission sliding plate and the limiter is preferably as follows: one end of the transmission sliding plate, which is close to the limiter, is provided with a sliding block part, and the bottom of the limiter is provided with a pushing inclined plane part; when the driving lock drives the transmission sliding plate to move towards the direction close to the limiter, the sliding block part of the transmission sliding plate is in contact fit with the pushing inclined plane part of the limiter to push the limiter to rotate around the rotating axis of the limiter, and a part of the limiter protrudes outwards relative to the shell, namely protrudes towards the indoor side.

Furthermore, the bottom of the stopper is provided with a first stop surface portion and a second stop surface portion, the first stop surface portion extends from the tail end of the pushing inclined surface portion to the direction far away from the pushing inclined surface portion, and the first stop surface portion and the second stop surface portion are distributed on two sides of the rotation axis of the stopper; when the sliding block part is in contact fit with the first stop surface part after crossing the pushing inclined plane part, the second stop surface part is in butt fit with the shell, the limiter is in a working state, and the first stop surface part and the second stop surface part are orthogonal to the indoor and outdoor directions and the rotation axis of the limiter. The stopper is reliably held in its operating state by two-point positioning of the first stopper surface portion and the second stopper surface portion.

Further, door and window opening limiter still includes movably the mounting driving piece of installing at the grip block at casing both ends and drive grip block reciprocating motion, the both ends edge of casing all is equipped with centre gripping flange portion, be formed with the fixed chamber of centre gripping between grip block and the centre gripping flange portion, the frame section bar of sliding door outside the holding in this centre gripping fixed chamber to with door and window opening limiter fixed mounting in the frame section bar of sliding door outside.

The application also provides a sliding door, which comprises an inner sliding door and an outer sliding door which can move left and right, and the door and window opening limiter, wherein the door and window opening limiter is fixed on the indoor side of the outer sliding door frame; when the stopper is in a working state, the stopper can be matched with the inner sliding door in an abutting mode.

As described above, the door and window opening limiter and the sliding door and window related to the utility model have the following beneficial effects:

1. the door and window opening limiter is arranged on the indoor side of the lower frame of the outer sliding door in the sliding door and window. When the stopper is in the closed state, the stopper does not protrude outwards from the shell on the indoor and outdoor sides, the stopper cannot be in contact with an inner sliding door in the sliding door and window, no limitation can be generated on the left and right movement of the inner sliding door in the sliding door and the outer sliding door, and the opening amount of the sliding door and window cannot be limited. When the operation drive lock makes the stopper be in operating condition, then at least partly outwards be outstanding towards indoor side in following the casing on the stopper, at this moment, in the sliding door in the in-process that the sliding door moved about or the outer sliding door moved about, the protruding part of stopper can with the cooperation of inner sliding door butt, thereby the restriction is moved about or the outer sliding door of sliding door, just also restrict the shedding volume of sliding door, make sliding door have a less shedding volume, for example inject sliding door's shedding volume within 110mm, avoid because of children with the head outwards stretch out in the sliding door and various dangers that lead to in the sliding door, improve safety in utilization. Particularly, the driving chain is simple by driving the driver to protrude towards the indoor side through the transmission fit between the driving lock and the transmission sliding plate and the transmission fit between the transmission sliding plate and the limiter, so that the overall structure of the door and window opening limiter is simplified, and the cost of the door and window opening limiter is correspondingly reduced.

2. The rotating shaft part is arranged as a part of the limiting stopper, so that the parts such as an additional pin shaft can be omitted for realizing the rotating fit, the number of parts is reduced, the structure is simplified, and the cost is reduced.

3. The driving lock is made of resin, so that the driving lock can be prevented from rusting, the driving lock is durable, and the whole service life of the door and window opening limiter is also ensured.

4. When the driving lock rotates to a first position corresponding to the closing state of the stopper and a second position corresponding to the working state of the stopper, the door and window opening limiter can generate stop feeling or click feeling, and the use feeling of the rotation driving lock is improved.

Drawings

Fig. 1 is a schematic structural view of a sliding door and window.

Fig. 2 and 3 are schematic structural views of an embodiment of a door/window opening limiter according to the present application at different viewing angles, and the door/window opening limiter is in a closed state.

Fig. 4 is a front view of fig. 2.

Fig. 5 is a sectional view taken along line a-a of fig. 4.

Fig. 6 is a schematic structural view of an embodiment of a door/window opening limiter according to the present application in an operating state.

Fig. 7 is a front view of fig. 6.

Fig. 8 is a sectional view taken along line B-B of fig. 7.

Fig. 9 to 11 are schematic structural views of the housing in fig. 2 at different viewing angles.

Fig. 12 to 14 are schematic structural views of the driving lock in fig. 2 at different viewing angles.

Fig. 15 is a schematic structural view of the transmission slide plate in fig. 2.

Fig. 16 is a schematic structural view of the stopper in fig. 2.

Fig. 17 is a bottom view of fig. 16.

Fig. 18 is a right side view of fig. 16.

FIG. 19 is a schematic view of a closed door/window opening limiter according to a second embodiment of the present invention

Fig. 20 is a front view of fig. 19.

Fig. 21 is a cross-sectional view taken along line C-C of fig. 20.

Fig. 22 is a schematic structural view of a second embodiment of the door/window opening limiter according to the present application in an operating state.

Fig. 23 is a front view of fig. 22.

Fig. 24 is a cross-sectional view taken along line D-D of fig. 23.

Fig. 25 to 27 are schematic structural views of the driving lock in fig. 19 at different viewing angles.

Description of the element reference numerals

100 inner sliding door

200 outer sliding door

300 door and window opening limiter

10 casing

11 second marking groove

12 lock mounting part

121 lock installation cavity

122 stop lug

122a right side

122b left side surface

123 closed dwell groove

124 work dwell groove

13 stopper mounting part

131 stopper mounting cavity

132 support hole

133 front guide pillar part

14 clamping flange part

15 through groove

20 drive lock

21 connecting projection

211 arc matching surface

22 turning groove

23 first marking groove

24 anti-drop claw part

241 guiding installation surface

25 closing limit convex part

26 working limit convex part

27 dwell lobe

28 accommodating cavity

30 transmission slide plate

31 connecting chute

32 slide part

40 position limiter

41 rotating shaft part

411 guide inclined plane

42 exposure prevention part

43 pushing the ramp

44 first stop surface portion

45 second stop surface portion

46 rear guide post section

50 first spring

60 top bead

70 sealing plate

80 second spring

90 clamping plate

110 locking screw

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, proportions, and dimensions shown in the drawings and described herein are for illustrative purposes only and are not intended to limit the scope of the present invention, which is defined by the claims, but rather by the claims. In addition, the terms such as "upper", "lower", "left", "right" and "middle" used in the present specification are for convenience of description only, and are not intended to limit the scope of the present invention, and changes or modifications of the relative relationship thereof may be regarded as the scope of the present invention without substantial changes in the technical contents.

The present application provides a door and window opening limiter 300 and a sliding door and window installed with this door and window opening limiter 300, the door and window opening limiter 300 is used for limiting the opening amount of the sliding door and window. For convenience of description, the directions in the following examples are defined as follows: the thickness direction, the length direction and the height direction of the sliding door and window are respectively defined as the front-back direction, the left-right direction and the up-down direction, then the front-back direction is also the indoor-outdoor direction, the outdoor direction is the front direction, and the indoor direction is the back direction. Based on this, in the views shown in fig. 1, 4, 7, 20, and 23, the left and right sides of the paper surface are the left and right directions, respectively, the upper and lower sides of the paper surface are the upper and lower directions, respectively, and the front and back surfaces of the paper surface are the rear and front directions, respectively.

As shown in fig. 1, the sliding door according to the present invention includes an inner sliding door 100, an outer sliding door 200, and a door opening stopper 300, wherein both the inner sliding door 100 and the outer sliding door 200 can move left and right, and the inner sliding door 100 is located at the rear side of the outer sliding door 200 in the front and rear direction. The inner sliding door 100 and the outer sliding door 200 both comprise rectangular frames and glass fixedly arranged in the frames; the rectangular frame has four parts, namely an upper frame, a lower frame, a left frame and a right frame. The door and window opening stopper 300 is fixed to the indoor side of the frame of the outer sliding door 200; in this embodiment, the door/window opening stopper 300 is fixed to the rear end surface of the lower frame of the outer sliding door 200. In the embodiment shown in the view of fig. 1, the inner-sliding door 100 is positioned at the right side of the outer-sliding door 200 in the left-right direction, and the door opening stopper 300 is positioned at the left side of the inner-sliding door 100, and the amount of leftward movement of the inner-sliding door 100 is restricted by the door opening stopper 300. Of course, in other embodiments, the following may be also possible: the inner sliding door 100 is positioned at the left side of the outer sliding door 200 in the left-right direction, and the door opening stopper 300 is positioned at the right side of the inner sliding door 100, and the amount of rightward movement of the inner sliding door 100 is restricted by the door opening stopper 300. The door opening stopper 300 positioned on the left side of the inner sliding door 100 and the door opening stopper 300 positioned on the right side of the inner sliding door 100 are symmetrically arranged in the left-right structure. The following description will discuss the structure of the door/window opening stopper 300, taking the door/window opening stopper 300 positioned on the left side of the inner sliding door 100 as an example.

As shown in fig. 2 to 5, the window and door opening stopper 300 according to the present application includes a housing 10, a driving lock 20 mounted to the housing 10, and a driving slider 30 and a stopper 40 both movably mounted to the housing 10; the housing 10 is fixedly mounted on the rear end surface of the lower frame of the outer sliding door 200, thereby integrally fixing the door and window opening limiter 300 on the rear end surface of the lower frame of the outer sliding door 200; the driving lock 20 is in transmission fit with the right end of the transmission slide plate 30, and the left end of the transmission slide plate 30 is in transmission fit with the stopper 40. The bottom of each component of the door stopper 300 is referred to as the front end side, and the top of each component of the door stopper 300 is referred to as the rear end side.

When the door/window opening stopper 300 is in the initial state, as shown in fig. 2 and 5, the stopper 40 does not protrude rearward from the housing 10 in the indoor and outdoor direction, and the stopper 40 is in the closed state, and the position where the lock 20 is driven in the closed state of the stopper 40 is defined as the first position. Since the stopper 40 does not protrude rearward from the housing 10, the stopper 40 is entirely accommodated in the housing 10, and the stopper 40 does not contact the inner sliding door 100 of the sliding door or the outer sliding door 200 during the process of moving the inner sliding door 100 in the sliding door or the outer sliding door 200 in the left and right directions, and the stopper 40 does not generate any restriction on the left and right movements of the inner sliding door 100 and the outer sliding door 200 of the sliding door or the sliding door, and thus the opening amount of the sliding door or the sliding window is not restricted.

When the driving lock 20 drives the transmission slide plate 30 to move in a direction approaching to the position limiter 40, the transmission slide plate 30 drives the position limiter 40 to move, so that at least a part of the position limiter 40 protrudes backwards from the housing 10 in the indoor and outdoor directions, as shown in fig. 6 to 8, the position limiter 40 is in a working state, and the position where the driving lock 20 is located in the working state limiter 40 is defined as a second position. Since at least a part of the stopper 40 protrudes rearward from the housing 10, in the process of moving the inner sliding door 100 or the outer sliding door 200 in the sliding door or window in the left-right direction, the rearward protruding part of the stopper 40 abuts against and is matched with the left frame of the inner sliding door 100, so that the leftward movement of the inner sliding door 100 or the rightward movement of the outer sliding door 200 is limited, the opening amount of the sliding door or window is also limited, and the sliding door or window has a small opening amount. For example, in a specific application embodiment of a sliding door, the door/window opening limiter 300 limits the opening amount of the sliding door to be within 110mm, so that various dangers caused by the fact that a child stretches out the head of the sliding door from the sliding door to the outside are effectively avoided, and the use safety of the sliding door is improved.

Therefore, in the door/window opening stopper 300 according to the present invention, the driving unit is driven to protrude to the indoor side by the driving engagement between the driving lock 20 and the driving slider 30 and the driving engagement between the driving slider 30 and the stopper 40, and the driving chain is simple, so that the entire structure of the door/window opening stopper 300 is simplified, and the cost of the door/window opening stopper 300 is accordingly reduced. In addition, the closed state and the working state of the stopper 40 can be switched accordingly only by switching the driving lock 20 between the first position and the second position, and the operation is very convenient.

Further, when the lock 20 is driven to switch from the first position to the second position or from the second position to the first position, the door/window opening stopper 300 can generate a stop feeling or a click feeling, and the using effect can be implemented in various structures. There are several preferred embodiments of the window and door open-ing stopper 300 based on different implementation structures for generating the click feeling, and two preferred embodiments of the window and door open-ing stopper 300 are provided as follows.

First embodiment of the door/window opening stopper 300

In the first embodiment of the door/window opening stopper 300, the driving lock 20 moves in a rotational manner, the transmission slide 30 moves in a translational manner in the left-right direction, and the stopper 40 moves in a rotational manner. Based on this, the driving lock 20 is rotatably installed in the housing 10 and the rotation axis of the driving lock 20 extends forward and backward, the driving slider 30 is installed in the housing 10 to be movable left and right, and the stopper 40 is rotatably installed in the housing 10 and the rotation axis of the stopper 40 extends upward and downward. The transmission matching structure between the driving lock 20 and the transmission sliding plate 30 enables the rotation of the driving lock 20 to drive the transmission sliding plate 30 to translate left and right, and the transmission matching structure between the transmission sliding plate 30 and the limiting stopper 40 enables the left and right translation of the transmission sliding plate 30 to drive the limiting stopper 40 to rotate back and forth around the rotation axis of the limiting stopper.

Further, the transmission matching structure between the driving lock 20 and the transmission slide plate 30 is as follows: as shown in fig. 5, 8, and 12 to 15, the bottom of the driving lock 20 is provided with a connecting protrusion 21 protruding forward, the connecting protrusion 21 is eccentrically disposed with respect to the rotation center of the driving lock 20, the right end of the transmission slide plate 30 is provided with a connecting slide slot 31 extending upward and downward, and the connecting protrusion 21 is located in the connecting slide slot 31. When the driving lock 20 is at the first position, as shown in fig. 5, the outer peripheral surface of the connecting protrusion 21 at the foremost end of the driving lock 20 is in contact fit with the right groove wall of the connecting chute 31; the driving lock 20 is rotated, because the connecting convex part 21 is eccentric to the rotation axis of the driving lock 20, the connecting convex part 21 moves leftwards while rotating, and the transmission sliding plate 30 is driven to move leftwards through the contact and matching of the connecting sliding chute 31 and the groove wall until the driving lock 20 rotates to the second position; when the lock 20 is driven to the second position, as shown in fig. 8, the outer peripheral surface of the connecting projection 21 is in contact engagement with the left groove wall of the connecting chute 31.

Further, the transmission fit structure between the transmission slide plate 30 and the stopper 40 is: as shown in fig. 5, 8, and 15 to 17, the left end of the transmission slide plate 30 near the stopper 40 is integrally provided with a slider portion 32, the bottom of the stopper 40 is provided with a pushing slope portion 43, the pushing slope portion 43 extends obliquely in such a manner that it goes forward the farther to the left, and the pushing slope portion 43 is distributed on the right side of the rotational axis of the stopper 40. When the lock 20 is driven to the first position, as shown in fig. 5, the transmission slide plate 30 is at the rightmost end, and the slider part 32 at the left end of the transmission slide plate 30 abuts against the right end of the pushing inclined surface part 43; when the drive lock 20 drives the transmission slide plate 30 to move leftward in a direction approaching the position limiter 40, the slider portion 32 of the transmission slide plate 30 contacts and engages with the pushing ramp portion 43 of the position limiter 40, and the transmission slide plate 30 pushes the position limiter 40 to rotate around its rotation axis, which is counterclockwise when viewed in fig. 5, so that the right end portion of the position limiter 40 protrudes rearward, i.e., toward the indoor side, relative to the housing 10. In this embodiment, the lock 20 needs to be driven to rotate 180 ° from the first position, i.e. to rotate to the second position; therefore, the closing state and the working state of the limiting stopper 40 can be conveniently switched only by rotating the driving lock 20 by 180 degrees, and the operation is very convenient and fast.

Preferably, as shown in fig. 12 and 13, the outer peripheral surface of the connecting projection 21 is formed by a segment of a circular arc engagement surface 211 and a segment of a flat surface, and the circular arc engagement surface 211 is in contact engagement with the groove wall of the connecting chute 31. In this way, in the process of rotating the driving lock 20, there is no fitting dead angle between the connecting protrusion 21 and the groove wall of the connecting chute 31, and the arc fitting surface 211 is in very smooth contact fitting with the groove wall of the connecting chute 31, so that the driving lock 20 can rotate more smoothly, and the operation comfort when the user rotates the driving lock 20 is improved. In addition, the driving lock 20 is a resin member of an integrated structure, so that the driving lock 20 can be prevented from rusting, the driving lock 20 is durable, and the overall service life of the door/window opening limiter 300 can be ensured.

Further, the mounting structure of the stopper 40 in the housing 10 is: as shown in fig. 9 to 11, the housing 10 is provided with a stopper mounting portion 13, and a stopper mounting cavity 131 and a support hole 132 communicated with the stopper mounting cavity 131 are formed in the stopper mounting portion 13; the rear end of the stopper mounting cavity 131 passes through the rear end face of the stopper mounting part 13 backwards, but the stopper mounting part 13 has a bottom part for plugging the front end of the stopper mounting cavity 131, so that the stopper mounting cavity 131 is a concave cavity recessed forwards; the two support holes 132 are respectively formed in the wall of the upper and lower sides of the stopper mounting chamber 131, and both the two support holes 132 extend in the up-down direction. As shown in fig. 16 to 18, the rotation shaft portion 41 is integrally provided on both the upper side wall and the lower side wall of the stopper 40, and the rotation shaft portion 41 extends axially up and down along the rotation axis of the stopper 40. When the stopper 40 is mounted, the stopper 40 is pressed forward into the stopper mounting cavity 131 of the housing 10, and the two rotation shaft portions 41 on the outer wall of the stopper 40 are rotatably supported in the two support holes 132 of the housing 10, respectively, whereby the stopper 40 is rotatably mounted in the housing 10. The central axis of the rotating shaft portion 41 is the rotating axis of the stopper 40. In this application, set up pivot portion 41 into the partly of stopper 40, can omit to adopt parts such as extra round pin axle to realize normal running fit, reduce part quantity, just also simplify the structure, reduce cost. Preferably, as shown in fig. 18, the outer end surface of the rotation shaft portion 41 is a guide inclined surface 411, the guide inclined surface 411 is inclined so as to be closer to the center line of the stopper 40 as it goes forward, and the stopper 40 can be easily pressed forward into the stopper mounting cavity 131 of the housing 10 by the guide inclined surface 411.

Further, as shown in fig. 5, 8 and 16, the door/window opening stopper 300 further includes a second spring 80 accommodated in the stopper mounting cavity 131, the second spring 80 axially extends in the front-rear direction along the indoor and outdoor directions, the second spring 80 is distributed on the left side of the rotating shaft portion 41, the front end of the second spring 80 is in abutting fit with the cavity bottom surface of the stopper mounting cavity 131, the rear end of the second spring 80 is in abutting fit with the left end of the stopper 40, or the rear end of the second spring 80 is located on the front side of the left end of the stopper 40 and is not in contact with the left end of the stopper 40. When the stopper 40 is in the working state, the second spring 80 is in a compressed state, and the rear end of the second spring 80 is in abutting fit with the left end of the stopper 40; thus, when the transmission slide plate 30 moves rightwards and returns, the spring force of the second spring 80 drives the stopper 40 to rotate reversely, so that the stopper 40 returns to the closed state. Preferably, as shown in fig. 5 and 9, a rear guide post 46 protruding forward is provided on the bottom surface of the stopper 40, a front guide post 133 protruding rearward is provided on the bottom of the stopper mounting cavity 131 of the housing 10, the rear end of the second spring 80 is sleeved on the rear guide post 46 of the stopper 40, and the front end of the second spring 80 is sleeved on the front guide post 133 of the housing 10, so as to ensure the accuracy of the second spring 80 driving the stopper 40 to return to the closed state.

Further, as shown in fig. 16 and 17, the front end of the stopper 40 is provided with a first stopper surface portion 44 and a second stopper surface portion 45, the first stopper surface portion 44 extends leftward from the tip end of the pushing slope portion 43 in a direction away from the pushing slope portion 43, and the first stopper surface portion 44 and the second stopper surface portion 45 are respectively distributed on the right side and the left side of the rotational axis of the stopper 40. When the stopper 40 is in the closed state, as shown in fig. 5 and 17, the first stopper surface portion 44 extends obliquely rearward to face leftward, and the second stopper surface portion 45 also extends obliquely rearward to face leftward. When the drive lock 20 pushes the transmission slide plate 30 to move leftward, the slider portion 32 at the left end of the transmission slide plate 30 firstly contacts and cooperates with the pushing inclined surface portion 43 at the bottom of the stopper 40, and then the slider portion 32 passes over the pushing inclined surface portion 43 and contacts and cooperates with the first stopper surface portion 44, at this time, as shown in fig. 8, the stopper 40 is in a working state, and the second stopper surface portion 45 abuts and cooperates with the cavity bottom surface of the stopper mounting cavity 131 in the housing 10, and the first stopper surface portion 44 and the second stopper surface portion 45 are in a straight state extending leftward and rightward. In this way, the stopper 40 is reliably held in its operating state by the abutting engagement positioning of the first stopper surface portion 44 with the slider portion 32 and the abutting engagement positioning of the second stopper surface portion 45 with the housing 10 to restrict the stopper 40 from continuing to rotate.

Further, the mounting structure of the drive lock 20 in the housing 10 is: as shown in fig. 2, 5, 8, and 9 to 11, the housing 10 is provided with lock mounting portions 12, the lock mounting portions 12 being distributed on the right side of the stopper mounting portion 13; a lock mounting cavity 121 is opened in the lock mounting portion 12 to pass through the lock mounting portion in the front-rear direction, and the drive lock 20 is rotatably mounted in the lock mounting cavity 121 of the housing 10 around its own central axis. As shown in fig. 12 to 14, the outer peripheral side of the drive lock 20 is provided with three retaining pawl portions 24, and a radial gap is present between each retaining pawl portion 24 and the main body of the drive lock 20; when the drive lock 20 is mounted, the drive lock 20 is pressed forward into the lock mounting cavity 121 of the housing 10 until the disengagement preventing claw 24 engages with the bottom surface of the lock mounting portion 12, which effectively prevents the drive lock 20 from disengaging from the lock mounting cavity 121 of the housing 10. Preferably, the bottom of each of the retaining claw portions 24 is provided with a guide attachment surface 241, and the guide attachment surface 241 is inclined so as to be closer to the center line of the drive lock 20 as it goes forward, and the drive lock 20 can be easily pressed forward into the lock attachment cavity 121 of the housing 10 by the guide attachment surface 241.

Further, as shown in fig. 5, the housing 10 is provided with a through groove 15 penetrating from left to right at the joint of the lock mounting portion 12 and the stopper mounting portion 13, the through groove 15 communicates the lock mounting cavity 121 and the stopper mounting cavity 131, and the transmission slide plate 30 is movably accommodated in the through groove 15 of the housing 10. In addition, since the lock installation cavity 121 has a structure penetrating through the front and rear sides, as shown in fig. 3, 5 and 8, the door and window opening limiter 300 further includes a sealing plate 70, and the sealing plate 70 is fixed to the housing 10 and seals the front end of the lock installation cavity 121, so that the sealing plate 70 can separate the indoor side from the outdoor side, thereby preventing the indoor side and the outdoor side from being communicated with each other at the lock installation cavity 121 of the housing 10, and effectively preventing air outside the outdoor side from leaking into the indoor space through the lock installation cavity 121, thereby ensuring the air tightness of the sliding door and window. More preferably, as shown in fig. 16 and 17, the right end of the stopper 40 is integrally provided with an exposure prevention portion 42; when the stopper 40 is in the operating state, as shown in fig. 6 to 8, the right edge of the exposure-preventing portion 42 is very close to the right cavity wall of the stopper mounting cavity 131, that is, the exposure-preventing portion 42 blocks the empty area between the stopper 40 and the stopper mounting portion 13, so that the exposure of the internal structure due to the backward protrusion of the stopper 40 is avoided, the visual effect of the door and window opening stopper 300 is improved, and the appearance is more attractive. When the stopper 40 is in the closed state, as shown in fig. 5, the exposure prevention portion 42 is in a flat shape extending in the left-right direction and is in contact engagement with the transmission slide plate 30 in a surface contact manner to form a support; in this way, when the stopper 40 is returned from the operating state to the closed state, the exposure preventing portion 42 is stopped by the abutting engagement between the exposure preventing portion 42 and the transmission slide plate 30, and the stopper 40 is reliably maintained in the closed state.

Further, as shown in fig. 9 and 11, the lock mounting portion 12 is provided with a stopper projection 122 on a wall of the lock mounting cavity 121, the stopper projection 122 is located at a middle position of the lock mounting cavity 121 in the left-right direction, and both side surfaces of the stopper projection 122 in the left-right direction are a right side surface 122a and a left side surface 122b, respectively. As shown in fig. 12 to 14, the outer peripheral surface of the rear section of the driving lock 20 is provided with a closing limit protrusion 25 and an operating limit protrusion 26 which both protrude radially, and the closing limit protrusion 25 and the operating limit protrusion 26 may be two independent protrusions or may be combined into the same protrusion; in the drive lock 20 shown in fig. 12 to 14, the closure limit projection 25 and the operation limit projection 26 are combined into a circular arc segment of 180 °. Taking the view angle shown in fig. 4 as an example, when the stopper 40 is in the closed state, the driving lock 20 is in the first position, the closing limit protrusion 25 of the driving lock 20 is in abutting engagement with the right side surface 122a of the stop protrusion 122 of the housing 10, and the driving lock 20 can only rotate clockwise and cannot rotate counterclockwise subsequently; the driving lock 20 is rotated 180 degrees clockwise until the working limit protrusion 26 of the driving lock 20 is abutted and matched with the left side surface 122b of the stop protrusion 122 of the housing 10, the driving lock 20 is located at the second position, the stopper 40 is in a working state, and the driving lock 20 can only rotate counterclockwise and cannot rotate clockwise subsequently. Therefore, in the process of rotating the drive lock 20, the drive lock 20 can be conveniently and accurately rotated to the first position corresponding to the closed state of the stopper 40 and the second position corresponding to the operating state of the stopper 40. In particular, when the stop 40 is switched from the closed condition to the operating condition, the drive lock 20 can only be rotated clockwise by 180 °; when the stop 40 is switched from the active condition to the closed condition, the drive lock 20 can only be rotated 180 ° counter clockwise.

Preferably, as shown in fig. 4 and 7, a rotation groove 22 is formed on the top surface of the driving lock 20, and the rotation groove 22 may be a straight groove or a cross-shaped groove, so that a user can rotate the driving lock 20 to switch the working state and the closing state of the stopper 40. In this embodiment, the rotation groove 22 is a straight groove, and the lock 20 can be rotationally driven by using a straight screwdriver, a coin, a hard thin plate, or the like, which is very convenient. When the stopper 40 is in the working state and the closed state, the extending direction of the rotation groove 22 is the left-right direction, which is the same as the length direction of the door window opening stopper 300, and the whole visual effect of the product is improved. In addition, the linear rotating groove 22 is preferably a circular arc groove recessed forward, so as to be conveniently matched with coins in daily life in a plugging manner.

Further, as shown in fig. 4 and 7, a first mark groove 23 located at one end of the rotation groove 22 is provided on the rear end surface of the drive lock 20, and a second mark groove 11 located on the right side of the drive lock 20 is provided on the rear end surface of the housing 10; when the stopper 40 is in the closed state, as shown in fig. 4, the first marking groove 23 is located on the left end side of the linear groove, away from the second marking groove 11; when the stopper 40 is in the operating state, as shown in fig. 7, the first marking groove 23 is located on the right end side of the linear groove, facing the second marking groove 11. Therefore, through the matching relation of the first marking groove 23 and the second marking groove 11, a user can clearly and intuitively know whether the stopper 40 is in a working state or a closed state, operation visualization is realized, and the overall design is more humanized.

Further, as shown in fig. 9 to 11, the lock mounting portion 12 is provided with a closed stopping groove 123 at the right end of the cavity wall of the lock mounting cavity 121, and the lock mounting portion 12 is provided with a working stopping groove 124 at the left end of the cavity wall of the lock mounting cavity 121; as shown in fig. 5, 8 and 12, a receiving cavity 28 is formed in the driving lock 20, and a first spring 50 and a top ball 60 are installed in the receiving cavity 28; the inner end of the first spring 50 is in abutting fit with the inner end cavity wall of the containing cavity 28, so that the inner end of the first spring 50 is kept; the outer end of the first spring 50 is in contact fit with the top ball 60, so that the top ball 60 is tightly attached to the wall of the lock installation cavity 121. When the stopper 40 is in the closed state, as shown in fig. 5, the top bead 60 is located in the closed dwell groove 123; when the retainer 40 is in the operative condition, as shown in FIG. 8, the top bead 60 is located in the operative dwell groove 124. Thus, when the driving lock 20 at the first position is rotated clockwise by 180 ° to the second position and the stopper 40 is switched from the closed state to the working state, the top ball 60 is caught in the working pause groove 124 to generate pause and click feeling; similarly, when the driving lock 20 at the second position is rotated 180 ° counterclockwise to the first position and the stopper 40 is switched from the operating state to the closed state, the top bead 60 is clamped into the closed pause groove 123 to generate pause and click feeling, so that the user can intuitively sense that the driving lock 20 is rotated in place and the use feeling of rotating the driving lock 20 is improved.

Further, the installation structure of the door/window opening stopper 300 on the outer sliding door 200 in the sliding door/window is: firstly, an installation opening is formed in the indoor side of the lower frame of the outer sliding door 200, and the shape of the installation opening is matched with the outer contour of the shell 10; next, as shown in fig. 3 and 5, the door/window opening stopper 300 further includes a clamping plate 90 movably installed at the left and right ends of the casing 10, and an installation driving member for driving the clamping plate 90 to reciprocate back and forth, flat and outwardly protruding clamping flange portions 14 are provided at the left and right end edges of the casing 10, and a clamping fixing cavity is formed between the outer end of the clamping plate 90 and the clamping flange portions 14. When the door/window opening limiter 300 is installed, the left-side section and the right-side section of the lower frame at the installation opening are clamped in the clamping and fixing cavity of the door/window opening limiter 300, and the installation driving member is operated to move the clamping plate 90 backward in the direction close to the clamping flange portion 14 until the clamping plate 90 and the clamping flange portion 14 clamp the left-side section and the right-side section of the lower frame at the installation opening, so that the door/window opening limiter 300 is reliably and fixedly installed in the frame section of the outer sliding door 200.

In this embodiment, the mounting driving member is a locking screw 110 extending forward and backward, a through hole for accommodating the stud portion of the locking screw 110 and a counter bore for accommodating the head portion of the locking screw 110 are formed in the housing 10, and the locking screw 110 is in threaded engagement with the clamping plate 90. Thus, when the locking screw 110 is rotated, the clamping plate 90 can move forward or backward along the locking screw 110; the grip plate 90 moves backward to perform the installation of the door and window opening stopper 300; the clamping plate 90 moves forward to perform the detachment of the door opening stopper 300. In addition, the front end of the locking screw 110 is riveted, so that the clamping plate 90 is not separated from the front end of the locking screw 110, and the clamping plate 90 is prevented from falling into the lower frame of the outer sliding door 200 due to separation.

In the first embodiment of the door window opening stopper 300, the housing 10, the stopper 40, the driving lock 20, and the driving slider 30 are all integrated. In the initial position, as shown in fig. 5, the stopper 40 is in the closed state, the stopper 40 is folded in the stopper mounting cavity 131 of the housing 10, the rear end surface of the stopper 40 is flush with the rear end surface of the housing 10, the driving lock 20 is in the first position, and the transmission slide plate 30 is located at the rightmost end in the stroke range. The driving lock 20 is rotated clockwise by 180 degrees to a second position, the driving lock 20 drives the transmission slide plate 30 to move leftwards, the transmission slide plate 30 pushes the stopper 40 to rotate, the right section part of the stopper 40 protrudes towards the indoor side, the stopper 40 is in a working state, and the second spring 80 is compressed by the left section part of the stopper 40. The driving lock 20 is rotated by 180 degrees anticlockwise to a first position, the driving lock 20 drives the transmission sliding plate 30 to move rightwards, the transmission sliding plate 30 is reset, the second spring 80 drives the limiting stopper 40 to rotate reversely, and the limiting stopper 40 is reset to a closed state.

Second embodiment of the door/window opening stopper 300

The second embodiment of the door window opening restrictor 300 differs from the first embodiment of the door window opening restrictor 300 only in that: the click feeling is generated by a different structure, that is, the first spring 50 and the top ball 60 in the first embodiment of the door/window opening stopper 300 are replaced with the following stop protrusion 27. Therefore, as shown in fig. 19 to 24, the second embodiment of the door window opening stopper 300 also includes the housing 10, the stopper 40, the driving lock 20, the transmission slide plate 30, the sealing plate 70, the clamping plate 90, and the locking screw 110. However, the first spring 50 and the knock bead 60 are not disposed in the drive lock 20, but the stopper projection 27 protruding in the radial direction is provided on the outer peripheral surface of the drive lock 20, and as shown in fig. 25 to 27, the stopper projection 27 on the outer peripheral surface of the drive lock 20 is in contact engagement with the wall of the lock mounting cavity 121 in the housing 10; the closing dwell groove 123 is provided at the left end of the cavity wall of the lock installation cavity 121, and the working dwell groove 124 is provided at the right end of the cavity wall of the lock installation cavity 121. When the retainer 40 is in the closed condition, as shown in FIG. 21, the dwell lobe 27 is located in the closed dwell groove 123; when the retainer 40 is in the operative condition, as shown in FIG. 24, the dwell lobe 27 is located in the operative dwell groove 124. Thus, when the driving lock 20 at the first position is rotated clockwise by 180 ° to the second position and the stopper 40 is switched from the closed state to the operating state, the pause protrusion 27 is disengaged from the closed pause groove 123, the driving lock 20 of the resin member has a certain elasticity, so that the driving lock 20 is elastically deformed at the pause protrusion 27, and the pause protrusion 27 is just caught in the operating pause groove 124 as the driving lock 20 is rotated clockwise to the second position, thereby generating a pause feeling and a click feeling. Similarly, when the driving lock 20 at the second position is rotated 180 ° counterclockwise to the first position and the stopper 40 is switched from the operating state to the closed state, the pause protrusion 27 is disengaged from the operating pause groove 124, the driving lock 20 is elastically deformed at the pause protrusion 27, and the pause protrusion 27 is just snapped into the closed pause groove 123 as the driving lock 20 is rotated counterclockwise to the first position, thereby generating a pause feeling and a click feeling.

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 utility model. Any person skilled in the art can modify or change the above-mentioned 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 (20)

1. A door and window opening restrictor characterized by: the device comprises a shell (10), a driving lock (20) arranged on the shell (10), and a transmission sliding plate (30) and a stopper (40) which are movably arranged on the shell (10), wherein the driving lock (20) is in transmission fit with the transmission sliding plate (30), and the transmission sliding plate (30) is in transmission fit with the stopper (40);

when the stopper (40) does not protrude outward from the housing (10) in the indoor-outdoor direction, the stopper (40) is in a closed state;

when the driving lock (20) drives the transmission sliding plate (30) to move towards the direction close to the position limiter (40), the transmission sliding plate (30) drives the position limiter (40) to move, at least one part of the position limiter (40) protrudes outwards from the shell (10) in the indoor and outdoor directions, and the position limiter (40) is in a working state.

2. The door window opening restrictor of claim 1, wherein: the drive lock (20) is rotatably mounted in the housing (10), and the transmission slide (30) is movably mounted in the housing (10).

3. The door window opening restrictor of claim 2, wherein: the bottom of the driving lock (20) is provided with a connecting convex part (21), the connecting convex part (21) and the rotating center of the driving lock (20) are eccentrically arranged, the transmission sliding plate (30) is provided with a connecting sliding groove (31), and the connecting convex part (21) is positioned in the connecting sliding groove (31).

4. The door window opening restrictor of claim 3, wherein: the outer peripheral surface of the connecting convex part (21) is provided with an arc matching surface (211), and the arc matching surface (211) is in contact matching with the groove wall of the connecting sliding groove (31).

5. The door window opening restrictor of claim 2, wherein: the top surface of the driving lock (20) is provided with a rotating groove (22).

6. The door window opening restrictor of claim 5, wherein: a first marking groove (23) positioned at one end of the rotating groove (22) is formed in the top surface of the driving lock (20), and a second marking groove (11) positioned on the outer peripheral side of the driving lock (20) is formed in the top surface of the shell (10);

when the stopper (40) is in a closed state, the first marking groove (23) is far away from the second marking groove (11);

when the limiting stopper (40) is in a working state, the first marking groove (23) is over against the second marking groove (11).

7. The door window opening restrictor of claim 2, wherein: the shell (10) is provided with a lock mounting part (12), a through lock mounting cavity (121) is formed in the lock mounting part (12), and the driving lock (20) is rotatably mounted in the lock mounting cavity (121) of the shell (10); at least one anti-falling claw part (24) is arranged on the outer periphery of the driving lock (20), and the anti-falling claw part (24) is clamped with the bottom surface of the lock mounting part (12).

8. The door window opening restrictor of claim 7, wherein: the lock mounting part (12) is provided with a stop lug (122) on the wall of the lock mounting cavity (121), and the periphery of the driving lock (20) is provided with a closing limit convex part (25) and a working limit convex part (26);

when the limiter (40) is in a closed state, the closing limit convex part (25) of the driving lock (20) is in butt fit with one side surface of the stop convex block (122) of the shell (10);

when the limiter (40) is in an operating state, the operating limiting convex part (26) of the driving lock (20) is in abutting fit with the other side surface of the stopping convex block (122) of the shell (10).

9. The door window opening restrictor of claim 7, wherein: the lock mounting part (12) is provided with a closed pause groove (123) and a working pause groove (124) on the cavity wall of a lock mounting cavity (121), the driving lock (20) is internally provided with an accommodating cavity (28), a first spring (50) and a top ball (60) are mounted in the accommodating cavity (28), one end of the first spring (50) is kept, the other end of the first spring is in contact fit with the top ball (60), and the top ball (60) is in contact fit with the cavity wall of the lock mounting cavity (121);

when the retainer (40) is in the closed state, the top bead (60) is located in the closed dwell groove (123);

when the retainer (40) is in an operating state, the top bead (60) is located in the operating dwell groove (124).

10. The door window opening restrictor of claim 7, wherein: the lock mounting part (12) is provided with a closed pause groove (123) and a working pause groove (124) on the cavity wall of the lock mounting cavity (121), the peripheral surface of the driving lock (20) is provided with a pause convex part (27), and the pause convex part (27) is in contact fit with the cavity wall of the lock mounting cavity (121);

the dwell lobe (27) is located in the closed dwell groove (123) when the retainer (40) is in the closed condition;

when the retainer (40) is in the working state, the dwell lobe (27) is located in the working dwell groove (124).

11. The door window opening limiter according to any one of claims 1 to 10, wherein: the driving lock (20) is a resin piece with an integrated structure.

12. The door window opening restrictor of claim 7, wherein: the lock further comprises a sealing plate (70), wherein the sealing plate (70) is fixed on the shell (10) and blocks the bottom end of the lock mounting cavity (121).

13. The door window opening restrictor of claim 1, wherein: the transmission sliding plate (30) is movably arranged in the shell (10), the limiting stopper (40) is rotatably arranged in the shell (10), and the rotating axis of the limiting stopper (40) is perpendicular to the indoor and outdoor directions.

14. The door window opening restrictor of claim 13, wherein: casing (10) are equipped with stopper installation department (13), set up stopper installation cavity (131) in stopper installation department (13) and support hole (132) with stopper installation cavity (131) intercommunication, be equipped with pivot portion (41) on the outer wall of stopper (40) integratively, pivot portion (41) are along the axis of rotation axial extension of stopper (40), stopper (40) holding is in stopper installation cavity (131) of casing (10), pivot portion (41) of stopper (40) rotationally support in support hole (132) of casing (10).

15. The door window opening restrictor of claim 14, wherein: the novel limiting device is characterized by further comprising a second spring (80) accommodated in the limiting device installation cavity (131), wherein the second spring (80) extends along the indoor and outdoor direction, one end of the second spring (80) is in butt fit with the bottom surface of the limiting device installation cavity (131), and the other end of the second spring (80) is in butt fit with one end, far away from the transmission sliding plate (30), of the limiting device (40).

16. The door window opening restrictor of claim 14, wherein: an anti-exposure part (42) is arranged at one end of the limiting stopper (40) close to the transmission sliding plate (30);

when the stopper (40) is in a working state, the exposure prevention part (42) blocks an empty area between the stopper (40) and the stopper mounting part (13).

17. The door window opening restrictor of claim 13, wherein: one end of the transmission sliding plate (30) close to the stopper (40) is provided with a sliding block part (32), and the bottom of the stopper (40) is provided with a pushing inclined plane part (43);

when the driving lock (20) drives the transmission sliding plate (30) to move towards the direction close to the position limiter (40), the sliding block part (32) of the transmission sliding plate (30) is in contact fit with the pushing inclined plane part (43) of the position limiter (40) to push the position limiter (40) to rotate around the rotation axis of the position limiter.

18. The door window opening restrictor of claim 17, wherein: the bottom of the stopper (40) is provided with a first stop surface part (44) and a second stop surface part (45), the first stop surface part (44) extends from the tail end of the pushing inclined surface part (43) to the direction far away from the pushing inclined surface part (43), and the first stop surface part (44) and the second stop surface part (45) are distributed on two sides of the rotation axis of the stopper (40);

when the sliding block part (32) passes over the pushing inclined surface part (43) and then is in contact fit with the first stop surface part (44), the second stop surface part (45) is in butt fit with the shell (10), the limiting stopper (40) is in a working state, and the first stop surface part (44) and the second stop surface part (45) are both orthogonal to the indoor and outdoor directions and the rotation axis of the limiting stopper (40).

19. The door window opening restrictor of claim 1, wherein: still including movably installing grip block (90) at casing (10) both ends and drive grip block (90) reciprocating motion's installation driving piece, the both ends edge of casing (10) all is equipped with centre gripping flange portion (14), be formed with the fixed chamber of centre gripping between grip block (90) and centre gripping flange portion (14).

20. A sliding door comprising an inner sliding door (100) and an outer sliding door (200) both movable left and right, characterized in that: further comprising the fenestration restrictor (300) of any of claims 1-19, the fenestration restrictor (300) being affixed to an interior side of a jamb of a tambour door (200);

when the limiting stopper (40) is in a working state, the limiting stopper (40) can be in abutting fit with the inner sliding door (100).

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