Limiting stopper and bidirectional side-hung PD door and window

Abstract

The utility model belongs to the technical field of door and window accessories, and provides a limiter and a bidirectional side-hung PD door, the limiter comprises a movable seat, a fixed seat arranged opposite to the movable seat, a driving mechanism for driving the movable seat to be close to or far away from the fixed seat, and a butt joint assembly for connecting the movable seat and the fixed seat, and the butt joint assembly comprises a butt joint hole, a magnetic attraction piece and a butt joint pin; the insertion hole is formed in the end, close to the movable seat, of the fixed seat, the magnetic attraction piece is arranged at the bottom of the insertion hole, and the insertion pin is movably connected with the movable seat; or the opposite insertion hole is formed in the end, close to the fixed seat, of the movable seat, the magnetic attraction part is arranged at the bottom of the opposite insertion hole, the opposite insertion pin is movably connected with the fixed seat, the opposite insertion pin and the magnetic attraction part are magnetically attracted, and a reset part is further arranged between the opposite insertion pin and the fixed seat and used for limiting the opposite insertion pin to stretch out of the fixed seat. The PD door comprises the limiter. The limiter and the two-way vertical hinged PD door have the advantages of being simple in structure and convenient to use.

Description

TECHNICAL FIELD

[0001] The utility model relates to door and window accessory technical field, especially in a kind of stopper and bidirectional casement PD door and window. BACKGROUND

[0002] PD door and window is also called push-pull casement door and window, which is a kind of door and window that can be pushed and pulled and opened flat, and generally equipped with at least one fixed sash and one sliding sash. The fixed sash can only rotate and open flat around the door shaft, and the sliding sash can slide in the door frame. When the sliding sash overlaps with the fixed sash, it can rotate and open flat together with the fixed sash. Therefore, PD door and window, like ordinary casement door and window, needs to be installed with a stopper. The stopper generally has a push-pull movable bolt and a bolt hole. The bolt is generally arranged on the sash, and the bolt hole is generally arranged on the door frame. When the sash coincides with the door frame, the bolt can be pushed into the bolt hole to fix the sash, increase the connection points of the sash and the door frame, and improve the stability of the closed door and window.

[0003] Since the ordinary casement door and PD door and window are unidirectionally opened, a baffle is generally arranged on the door and window to realize positioning and sealing of the door and window. Generally, when the sash contacts the baffle, the bolt can be accurately inserted into the bolt hole. However, when the sash can be opened inwardly and outwardly, the baffle will limit the opening direction of the sash. The door frame of the ordinary door and window or PD door and window will cancel the baffle, and the sash will block the line of sight of the bolt hole. This makes it difficult to accurately push the bolt into the bolt hole when the door and window needs to be closed, affecting the convenience of using the bidirectional casement ordinary door and window and PD door and window.

[0004] The technical problem to be solved by the utility model is how to solve the problem that the existing stopper cannot be applied to bidirectional casement ordinary door and window and bidirectional casement PD door and window. UTILITY MODEL CONTENTS

[0005] In order to overcome the shortcomings of the prior art, the purpose of the utility model is to provide a stopper with simple structure, good universality and convenient use, and a bidirectional casement PD door and window.

[0006] The technical scheme adopted by the utility model is as follows: a stopper, comprising a movable seat, a fixed seat arranged opposite to the movable seat, a driving mechanism for driving the movable seat to approach or move away from the fixed seat, and a butt joint assembly connecting the movable seat and the fixed seat, the butt joint assembly comprising a butt bolt hole, a magnetic attraction piece and a butt bolt;

[0007] The butt bolt hole is arranged at one end of the fixed seat close to the movable seat, the magnetic attraction piece is arranged at the bottom of the butt bolt hole, the butt bolt is movably connected with the movable seat, and the butt bolt is magnetically attracted to the magnetic attraction piece; or

[0008] The socket is arranged at one end of the movable seat close to the fixed seat, the magnetic part is arranged at the bottom of the socket, the latch is movably connected to the fixed seat, the latch and the magnetic part are magnetically attracted to each other, and a reset part is also arranged between the latch and the fixed seat to limit the latch from extending out of the fixed seat.

[0009] When the door leaf needs to be opened, the driving mechanism is used to push the movable seat to a position away from the fixed seat. At this time, the magnetic attraction force exerted by the magnetic element on the latch is smaller than the gravity of the latch itself, and the latch cannot be inserted into the latch. When the movable seat is pushed to a position away from the fixed seat, the attraction provided by the magnetic member is less than the elastic force provided by the reset member, and the magnetic member cannot attract the latch to extend out of the fixed seat. Therefore, the door can be freely rotated and opened.

[0010] In some embodiments, the driving mechanism includes a toggle member and a transmission rod, two ends of the transmission rod are respectively connected to the toggle member and the movable seat, and a sliding groove is provided on the transmission rod.

[0011] By adopting the above technical solution, the toggle member can drive the movable seat to move closer to or away from the fixed seat, and the slide groove on the transmission rod can play a guiding role, limiting the movable trajectory of the transmission rod to improve the transmission accuracy of the transmission rod.

[0012] In some embodiments, the driving mechanism also includes a box seat and an elastic limiter, the toggle member is slidably connected to the box seat, a chamber for the toggle member to slide is provided on the box seat, the elastic limiter is connected to the toggle member, and a limit groove corresponding to the elastic limiter is provided on the inner wall of the chamber.

[0013] The technical scheme is adopted, the movement track of the dialing piece is limited through the setting of the box seat, the sliding precision is improved, the elastic limiting piece is set, the movable seat is fixed at the preset height through cooperation with the limiting groove, the movable seat is prevented from sliding downward due to the gravity, and the accuracy of cooperation between the bolt and the insertion hole is affected.

[0014] In some embodiments, the dialing piece is provided with a dialing fork and a dialing block, the dialing fork extends out of the box seat and is connected with the transmission rod, and the box seat is provided with a dialing groove corresponding to the dialing block.

[0015] In some embodiments, the elastic limiting piece is provided with a separation guide surface away from the movable seat, and the separation guide surface gradually inclines downward from the end close to the movable seat to the end away from the movable seat.

[0016] The technical scheme is adopted, the separation guide surface is set, the elastic limiting piece and the limiting groove are separated, the movable seat is driven away from the fixed seat when the dialing piece is pushed to slide away from the fixed seat.

[0017] In some embodiments, the reset piece is sleeved on the outer surface of the bolt, the bottom of the bolt is provided with a stop ring corresponding to the reset piece, the movable seat or the fixed seat is provided with a pin hole for accommodating the reset piece and the bolt, the hole diameter of the end of the pin hole close to the insertion hole is greater than the outer diameter of the bolt and less than the outer diameter of the reset piece, and the end of the pin hole away from the insertion hole is provided with a sealing plate.

[0018] The technical scheme is adopted, the bolt can be kept extending out of the pin hole under the action of the reset piece without external driving, and the sealing plate is set to facilitate installation of the bolt and the reset piece.

[0019] In some embodiments, a guide seat is further included, the movable seat is slidably connected with the guide seat, the guide seat is provided with a guide groove, and the movable seat is provided with a guide block slidably matched with the guide groove.

[0020] The technical scheme is adopted, the guide seat is set to limit the sliding track of the movable seat, and the sliding of the movable seat is more accurate.

[0021] In some embodiments, the guide seat is further provided with a positioning hook, and the positioning hook is used for positioning when the guide seat is installed.

[0022] The technical scheme is adopted, the positioning hook can hook the end surface of the profile used for installing the guide seat, the positioning effect is achieved, and the installation efficiency is improved.

[0023] In some embodiments, the guide seat is further provided with an adjusting piece, the adjusting piece is arranged at the bottom of the guide seat, and is used for adjusting the height of the guide seat.

[0024] By setting the adjusting piece, the overall size of the guide seat and the adjusting piece can be changed, so that the guide seat can be installed in the inner cavity of the profile of different sizes, thereby improving the versatility of the limit stop.

[0025] The application also provides a bidirectional casement PD door and window, which comprises a frame body, a fixed sash, a sliding sash and the limit stop.

[0026] The bidirectional casement PD door and window provided by the application is provided with the limit stop, when the movable seat is pushed to the position close to the fixed seat, the fixed sash is rotated into the frame body, and the movable seat is opposite to the fixed seat, under the action of the magnetic attraction piece, the latch is automatically inserted into the corresponding insertion hole, the fixed sash and the frame body are fixed, and when the movable seat is pushed away from the fixed seat, the fixed sash can rotate freely relative to the frame body. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 is a structure schematic view of the limit stop in a separation state according to a preferred embodiment of the application;

[0028] Figure 2 is a structure schematic view of the limit stop in a combination state according to a preferred embodiment of the application; Figure 1 is a structure schematic view of the limit stop in a combination state according to a preferred embodiment of the application;

[0029] Figure 3 is a structure schematic view of the limit stop in a combination state according to a preferred embodiment of the application; Figure 1 is a structure schematic view of the limit stop in a combination state according to a preferred embodiment of the application;

[0030] Figure 4 is a structure schematic view of the limit stop in a combination state according to a preferred embodiment of the application; Figure 1 is a structure schematic view of the limit stop in a combination state according to a preferred embodiment of the application;

[0031] Figure 5 is a structure schematic view of the limit stop in a combination state according to a preferred embodiment of the application; Figure 1 is a structure schematic view of the limit stop in a combination state according to a preferred embodiment of the application;

[0032] Figure 6 is a structure schematic view of the limit stop in a combination state according to a preferred embodiment of the application;

[0033] In the figure: 100, stopper; 10, movable seat; 11, guide block; 20, fixed seat; 30, butt joint assembly; 31, butt joint hole; 32, magnetic attraction piece; 33, butt joint pin; 331, stop ring; 34, reset piece; 35, pin hole; 36, sealing plate; 40, driving mechanism; 41, actuating piece; 411, actuating block; 412, actuating fork; 42, transmission rod; 421, sliding groove; 43, box seat; 431, cavity; 432, limiting groove; 433, actuating groove; 44, elastic limiting piece; 441, separation guide surface; 50, guide seat; 51, guide groove; 52, positioning hook; 53, adjusting piece;

[0034] 200, bidirectional flat open PD door and window; 10a, frame body; 20a, fixed sash. DETAILED DESCRIPTION

[0035] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0036] It should be noted that when an element is referred to as being "on" another element, it can be directly on the other element or intervening elements can also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements can also be present. When an element is referred to as being "comprise a plurality of" it can be any number of two or more. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are used for the purpose of illustration only and are not intended to be limiting.

[0037] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in this description, the terms "therefore" and "because" are used in their conjunctive sense, meaning that the preceding clause is a sufficient but not necessarily necessary condition for the following clause.

[0038] First embodiment:

[0039] Please refer to Figures 1 to 5For the first embodiment of the utility model, a check arm 33 is arranged on the fixed seat 20, and the check arm 33 is magnetically attracted to the magnetic attraction piece 32, so that the check arm 33 is automatically inserted into the counter insertion hole 31 when the movable seat 10 is moved to the position close to the fixed seat 20, and the movable seat 10 is connected to the fixed seat 20, thereby achieving the limiting of the door and window fan body. The check arm 33 is not limited by the counter insertion hole 31 and the magnetic attraction piece 32 when the movable seat 10 is pushed away from the fixed seat 20, and the door and window fan body can be opened freely.

[0040] Optionally, in other embodiments, the counter insertion hole 31 is arranged at one end of the movable seat 10 close to the fixed seat 20, the magnetic attraction piece 32 is arranged at the bottom of the counter insertion hole 31, the check arm 33 is movably connected to the fixed seat 20, and the check arm 33 is magnetically attracted to the magnetic attraction piece 32. In order to prevent the check arm 33 from extending out of the fixed seat 20 due to its own gravity, a reset piece 34 is further arranged between the check arm 33 and the fixed seat 20 to limit the extension of the check arm 33 out of the fixed seat 20. That is, the positions of the check arm 33, the counter insertion hole 31 and the magnetic attraction piece 32 can be interchanged according to actual needs.

[0041] Preferably, in order to ensure that the check arm 33 can be reset smoothly, when the check arm 33 is arranged on the movable seat 10, a reset piece 34 can also be arranged between the check arm 33 and the movable seat 10.

[0042] In the embodiment, the magnetic attraction piece 32 is a permanent magnet, and in other embodiments, the magnetic attraction piece 32 can also be arranged as an electromagnet.

[0043] Optionally, the check arm 33 can be made of a metal material that can be attracted by a magnet, or a magnet or a metal block that can be attracted by a magnet can be inlaid on the check arm 33, as long as the condition that the check arm 33 is attracted by the magnetic attraction piece 32 when the check arm 33 is close to the magnetic attraction piece 32 is met.

[0044] In the embodiment, the reset member 34 is sleeved on the outer surface of the counter latch 33, the counter latch 33 is provided with a stop ring 331 corresponding to the reset member 34, the movable seat 10 or the fixed seat 20 is provided with a pin hole 35 for accommodating the reset member 34 and the counter latch 33, the pin hole 35 has a hole diameter larger than the outer diameter of the counter latch 33 and smaller than the outer diameter of the reset member 34 at the end close to the counter insertion hole 31, and the pin hole 35 is provided with an end plate 36 at the end away from the counter insertion hole 31. It can be ensured that the counter latch 33 can be kept to extend outward from the pin hole 35 under the action of the reset member 34 without external driving force, and the counter latch 33 and the reset member 34 can be conveniently installed by providing the end plate 36. The end plate 36 is detachably connected with the movable seat 10 or the fixed seat 20. Alternatively, the end plate 36 is detachably connected with the movable seat 10 or the fixed seat 20 through fasteners, and the detachable connection can also be achieved through clamping, inserting and other means.

[0045] Alternatively, the reset member 34 is a spiral spring or an elastic glue. In other embodiments, the reset member 34 can also be a tension spring, one end of which hooks the counter latch 33, and the other end hooks the bottom of the pin hole 35. The reset member 34 can also adopt an elastic member that can achieve the same function, and the specific setting mode can be set according to actual needs.

[0046] Specifically, the driving mechanism 40 includes a push member 41 and a transmission rod 42, both ends of the transmission rod 42 are connected with the push member 41 and the movable seat 10 respectively, and a sliding groove 421 is formed in the transmission rod 42. The movable seat 10 can be driven to approach or move away from the fixed seat 20 by pushing the push member 41, and the sliding groove 421 on the transmission rod 42 cooperates with the guide nails fixed on the external profile to play a guiding role, limiting the activity track of the transmission rod 42 to provide transmission accuracy of the transmission rod 42.

[0047] It should be noted that the length of the transmission rod 42 can be set according to actual needs, and the sliding groove 421 on the transmission rod 42 can be one or more according to actual needs, which is not limited here.

[0048] Further, the driving mechanism 40 further comprises a box seat 43 and an elastic limiting piece 44, the poking piece 41 is in sliding connection with the box seat 43, the box seat 43 is provided with a cavity 431 for the sliding of the poking piece 41, the elastic limiting piece 44 is connected with the poking piece 41, and the inner wall of the cavity 431 is provided with a limiting groove 432 corresponding to the elastic limiting piece 44. By arranging the box seat 43, the movement track of the poking piece 41 can be limited, and the sliding precision thereof is improved. By arranging the elastic limiting piece 44, the elastic limiting piece 44 moves along with the poking piece 41, and when the elastic limiting piece 44 moves to the limiting groove 432, the elastic limiting piece 44 is pressed into the limiting groove 432, so that the position of the poking piece 41 on the box seat 43 can be fixed, thereby realizing the fixation of the position of the movable seat 10, and the movable seat 10 is fixed at a preset height, so as to prevent the movable seat 10 from sliding downward due to its own gravity and affecting the accuracy of the cooperation between the latch 33 and the counter-bore 31.

[0049] Further, an end of the elastic limiting piece 44 away from the movable seat 10 is provided with a separation guide surface 441, and the separation guide surface 441 gradually inclines downward from the end close to the movable seat 10 to the end away from the movable seat 10. By arranging the separation guide surface 441, the elastic limiting piece 44 and the limiting groove 432 can be separated, and when the poking piece 41 is pushed to slide away from the fixed seat 20, the movable seat 10 can be driven to move away from the fixed seat 20.

[0050] Further, the poking piece 41 is provided with a poking fork 412 and a poking block 411, the poking fork 412 extends out of the box seat 43 and is connected with the transmission rod 42, and the box seat 43 is provided with a poking groove 433 corresponding to the poking block 411.

[0051] Although in the embodiment, the sliding of the movable seat 10 is realized by pushing the poking piece 41, in other embodiments, a power component such as a motor, a hydraulic cylinder, a pneumatic cylinder or an electric push rod can be used to push the movable seat 10 to slide, and a cam structure can also be used to drive the transmission rod 42 to move linearly and reciprocally, thereby driving the movable seat 10 to slide linearly.

[0052] In an embodiment, the limiting piece 100 further comprises a guide seat 50, the movable seat 10 is in sliding connection with the guide seat 50, the guide seat 50 is provided with a guide groove 51, and the movable seat 10 is provided with a guide block 11 in sliding cooperation with the guide groove 51. By arranging the guide seat 50, the sliding track of the movable seat 10 can be limited, the sliding of the movable seat 10 is more accurate, and the movable seat 10 can be conveniently installed.

[0053] As a further improvement of the above-mentioned embodiments, the guide seat 50 is further provided with a positioning hook 52, and the positioning hook 52 is used for positioning when the guide seat 50 is installed. The positioning hook 52 can hook the end face of the profile used for installing the guide seat 50, thereby playing a role of positioning and improving the installation efficiency.

[0054] As a further improvement of the above-mentioned embodiment, the guide seat 50 is further provided with an adjusting member 53, the adjusting member 53 is threadedly connected with the guide seat 50, the installation height of the guide seat 50 can be adjusted by adjusting the depth of the adjusting member 53 screwed into the guide seat 50, so that the guide seat 50 can be suitable for the installation of profiles with different sizes, and the universality is better.

[0055] The stopper 100 of the present application has the characteristics of simple structure and convenient use; the movable seat 10 is installed on the door leaf, the fixed seat 20 is installed on the door frame, then the counter plug hole 31 and the magnetic attraction member 32 are arranged on the fixed seat 20, and the counter plug 33 is correspondingly arranged on the movable seat 10; when it is needed to fix the door leaf on the door frame, the movable seat 10 is pushed to the position close to the fixed seat 20 by the driving mechanism 40; when the door leaf drives the movable seat 10 to rotate to the position directly below the fixed seat 20, under the magnetic attraction of the magnetic attraction member 32, the magnetic attraction force is greater than the gravity of the counter plug 33 itself, the counter plug 33 is automatically inserted into the counter plug hole 31, and the door leaf is fixed on the door frame; when it is needed to open the door leaf, the movable seat 10 is pushed away from the fixed seat 20 by the driving mechanism 40, at this time, the magnetic attraction force of the magnetic attraction member 32 to the counter plug 33 is smaller than the gravity of the counter plug 33 itself, the counter plug 33 cannot be inserted into the counter plug hole 31, so the door leaf can be freely rotated and opened; in addition, the positions of the counter plug hole 31, the magnetic attraction member 32 and the counter plug 33 can be interchanged according to the requirements, but when the counter plug 33 is arranged on the fixed seat 20, in order to avoid the counter plug 33 from extending out of the fixed seat 20 due to its own gravity, the reset member 34 needs to be arranged between the counter plug 33 and the fixed seat 20 to limit the counter plug 33 from extending out of the fixed seat 20; when the movable seat 10 is pushed to the position close to the fixed seat 20, the magnetic attraction force of the magnetic attraction member 32 to the counter plug 33 is greater than the elastic force of the reset member 34 to the counter plug 33, when the magnetic attraction member 32 is opposite to the counter plug 33, the counter plug 33 is attracted and inserted into the counter plug hole 31; when the movable seat 10 is pushed away from the fixed seat 20, since the magnetic attraction force provided by the magnetic attraction member 32 is smaller than the elastic force provided by the reset member 34, the magnetic attraction member 32 cannot attract the counter plug 33 to extend out of the fixed seat 20, so the door can be freely rotated and opened.

[0056] Second embodiment:

[0057] As Figure 6As shown, the specific application of the position limiter 100 on the bidirectional casement PD door, the bidirectional casement PD door window 200, including frame body 10a, fixed fan body 20a, sliding fan body (not shown in the figure) and the above-mentioned position limiter 100, the fixed fan body 20a is rotatably connected with the frame body 10a, the sliding fan body is slidably connected with the frame body 10a, when the sliding fan body coincides with the fixed fan body 20a, the sliding fan body can rotate with the fixed fan body 20a, the movable seat 10 is installed on the top of the fixed fan body 20a frame, the fixed seat 20 is installed on the top of the frame 10a inner side, and the fixed seat 20 is located on the rotation track of the movable seat 10. The guide seat 50 is arranged in the cavity of the top profile of the fixed fan body 20a through the screw, the box seat 43 and the pusher 41 are installed on the profile on the side of the fixed fan body 20a, and the pusher 41 is connected with the movable seat 10 through the transmission rod 42, the guide nail (not marked in the figure) matched with the sliding groove 421 is arranged on the profile on the side of the fixed fan body 20a.

[0058] The bidirectional casement PD door window 200 of the application, by setting the above-mentioned position limiter 100, when the movable seat 10 is pushed to the position close to the fixed seat 20, when the fixed fan body 20a is rotated into the frame 10a, and the movable seat 10 is opposite to the fixed seat 20, under the action of the magnetic attraction piece 32, the latch 33 will be automatically inserted into the corresponding insertion hole 31, realizing the fixation of the fixed fan body 20a and the frame 10a, when the movable seat 10 is pushed away from the fixed seat 20, at this time, the fixed fan can rotate freely relative to the frame 10a.

[0059] Finally, it should be pointed out that the above-mentioned is only the preferred example of the application, and is not used to limit the application, although the application has been described in detail with reference to the foregoing embodiments, for those skilled in the art, the technical solutions recorded in the foregoing embodiments can be modified, or some technical features can be replaced. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the application shall be included in the protection scope of the application.

Claims

1. A limiter characterized by, The utility model provides a kind of docking assembly (30) comprising movable seat (10), fixed seat (20) being oppositely arranged with movable seat (10), drive mechanism (40) driving movable seat (10) to be close to or away from fixed seat (20) and the connecting movable seat (10) with fixed seat (20), the docking assembly (30) comprises plug-in hole (31), magnetic attraction piece (32) and plug-in pin (33); The plug-in hole (31) is arranged at one end of the fixed seat (20) close to the movable seat (10), the magnetic attraction piece (32) is arranged at the bottom of the plug-in hole (31), the plug-in pin (33) is movably connected with the movable seat (10), and the plug-in pin (33) is magnetically attracted to the magnetic attraction piece (32); or The plug-in hole (31) is arranged at one end of the movable seat (10) close to the fixed seat (20), the magnetic attraction piece (32) is arranged at the bottom of the plug-in hole (31), the plug-in pin (33) is movably connected with the fixed seat (20), the plug-in pin (33) is magnetically attracted to the magnetic attraction piece (32), and a reset member (34) is further arranged between the plug-in pin (33) and the fixed seat (20) to limit the plug-in pin (33) from extending out of the fixed seat (20).

2. The limiter of claim 1, wherein The drive mechanism (40) comprises a knob (41) and a transmission rod (42), two ends of the transmission rod (42) are connected with the knob (41) and the movable seat (10) respectively, and a sliding groove (421) is formed in the transmission rod (42).

3. A limiter according to claim 2, characterised in that The drive mechanism (40) further comprises a box seat (43) and an elastic limiting member (44), the knob (41) is slidably connected with the box seat (43), the box seat (43) is provided with a chamber (431) for sliding of the knob (41), the elastic limiting member (44) is connected with the knob (41), and an inner wall of the chamber (431) is provided with a limiting groove (432) corresponding to the elastic limiting member (44).

4. A limiter according to claim 3, characterised in that The knob (41) is provided with a yoke (412) and a knob block (411), the yoke (412) extends out of the box seat (43) and is connected with the transmission rod (42), and the box seat (43) is provided with a knob groove (433) corresponding to the knob block (411).

5. The limiter of claim 3, wherein An end of the elastic limiting member (44) away from the movable seat (10) is provided with a separation guide surface (441), and the separation guide surface (441) gradually inclines downward from one end close to the movable seat (10) to one end away from the movable seat (10).

6. The position limiter of claim 1, wherein The reset member (34) is sleeved on the outer surface of the plug-in pin (33), the plug-in pin (33) is provided with a stop ring (331) corresponding to the reset member (34) at the bottom, the movable seat (10) or the fixed seat (20) is provided with a pin hole (35) for accommodating the reset member (34) and the plug-in pin (33), the pin hole (35) is provided with an end plate (36) at one end away from the plug-in hole (31), the hole diameter of the one end of the pin hole (35) close to the plug-in hole (31) is greater than the outer diameter of the plug-in pin (33) and less than the outer diameter of the reset member (34).

7. The position limiter of claim 1, wherein The guiding seat (50) is further provided with a positioning hook (52) for positioning when the guiding seat (50) is installed.

8. A limiter according to claim 7, characterised in that The guiding seat (50) is further provided with an adjusting piece (53) arranged at the bottom of the guiding seat (50) for adjusting the height of the guiding seat (50).

9. The limiter of claim 7, wherein The guiding seat (50) is further provided with an adjusting piece (53) arranged at the bottom of the guiding seat (50) for adjusting the height of the guiding seat (50).

10. A bi-directional casement PD door and window characterized in that, The guiding seat (50) is further provided with an adjusting piece (53) arranged at the bottom of the guiding seat (50) for adjusting the height of the guiding seat (50).

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