Opening limit devices and doors and windows

Abstract

The present invention provides an opening limiting device and a door and window, comprising: a support rod, a card receiving component and a fully open and half-open mechanism; the card receiving component is installed on the other of the opening frame and the window sash, the card receiving component is located below the sliding component, and a clamping portion is provided on the card receiving component; the sliding component is driven to move downward, the sliding component overcomes the elastic force of the force-applying mechanism, the sliding component moves in a direction away from the guide groove, the opening end of the guide groove opens, and when the sliding component moves downward to a retracted position, the sliding component is clamped with the clamping portion. The present invention does not need to provide a mounting hole in the prior art on the opening frame or the window sash, which can prevent air from leaking into the room from the mounting hole; the opening limiting device of the present invention is built into the profile cavity of the door and window, and when the window sash is in a "closed state", the card receiving component cannot be seen, so that the components on the surface of the window sash are more streamlined.

Description

Technical Field

[0001] The invention relates to the technical field of openable and closable doors and windows, and in particular to an opening limiting device and a door and window. Background Art

[0002] In order to limit the opening angle of the window sashes of doors and windows, opening limiting devices are provided on the doors and windows. Figure 1 As shown, the opening limiting device comprises a support rod 1 and a full opening and half opening mechanism 9, and the full opening and half opening mechanism 9 is connected to an operation button 7 via a connecting plate 6. Chinese invention patent "Opening limiting device and door and window", application number: CN 201210363005.1, as Figure 2 and Figure 3 As shown, the support rod 1 in the opening limiting device is supported and rotatable by one of the opening frame and the window sash arranged to be openable and closable relative to the opening frame, and the fully open and half-open mechanism 9 is assembled on the other of the opening frame and the window sash. The fully open and half-open mechanism 9 has a receiving component 2 and a sliding component 3. The receiving component 2 has a guide groove 5 in which a pin 4 arranged on the above-mentioned support rod 1 can enter. The sliding component 3 is assembled to be able to move between a forward position close to the above-mentioned guide groove 5 and a retracted position away from the guide groove 5. Under normal conditions, it is forced by a force-applying mechanism 8 and is located at the forward position, closing the open end of the above-mentioned guide groove 5. On the other hand, when the operating button 7 is operated, the sliding component 3 overcomes the elastic force of the force-applying mechanism 8, moves away from the guide groove 5, and opens the open end of the guide groove 5. When the pin 4 enters the above-mentioned guide groove 5, the opening of the window sash that is opened and moved is limited to a predetermined size. On the other hand, when the pin 4 is separated from the above-mentioned guide groove 5, the window sash that is opened and moved is allowed to be in a fully open state. The force-applying mechanism 8 is a spring. In order to install the operating button 7, a mounting hole communicating with the outside of the door and window needs to be processed on the profile of the door and window, which requires additional processing fees, and air will leak into the room through the mounting hole. Since the operating button 7 and the operating handle for opening the window sash are two parts, the surface of the door and window has many parts and the structure is complicated. Summary of the invention

[0003] In view of the above-mentioned shortcomings of the prior art, the purpose of the present invention is to provide an opening limiting device and door and window that do not require processing of mounting holes connected to the outside of the door and window and reduce the surface components of the door and window, so as to solve the above-mentioned problems existing in the prior art.

[0004] In order to solve the above technical problems, the present invention provides an opening limiting device, comprising: a support rod, a card receiving component and a full-opening and half-opening mechanism;

[0005] The support rod is supported and rotatable by one of the opening frame and the window sash which is arranged to be openable and closable relative to the opening frame, and a pin is provided on the support rod;

[0006] The fully open / half open mechanism is mounted on the other of the opening frame and the window sash, and comprises a receiving component and a sliding component, wherein the receiving component comprises a guide groove, and the pin on the support rod can enter the guide groove; the sliding component is mounted to be able to move between a forward position close to the guide groove and a retracted position away from the guide groove;

[0007] The card receiving component is installed on the other of the opening frame and the window sash, the card receiving component is located below the sliding component, and a clamping portion is provided on the card receiving component;

[0008] When the sliding component is forced by the force applying mechanism, the sliding component is located at the forward position, and the sliding component closes the open end of the guide groove;

[0009] The sliding component is driven to move downward, the sliding component overcomes the elastic force of the force-applying mechanism, the sliding component moves in a direction away from the guide groove, the open end of the guide groove opens, and when the sliding component moves downward to the retracted position, the sliding component is engaged with the engaging portion;

[0010] When the sliding component is driven to disengage from the clamping portion, the sliding component moves upward and returns to the forward position;

[0011] When the pin on the support rod enters the guide groove, the opening degree of the moving window sash is limited to a predetermined size; when the pin is separated from the guide groove, the window sash can be opened to a fully open state.

[0012] The card receiving component is installed on the other side of the opening frame and the window sash, and the card receiving component is located below the sliding component. When the sliding component is driven to move downward to the retracted position, the sliding component is engaged with the engaging portion, and the open end of the guide groove is opened; when the sliding component is driven to disengage from the engaging portion, the sliding component moves upward to the forward position, and the open end of the guide groove is closed; since the card receiving component does not need to be provided with a mounting hole connected to the outside of the door and window in the prior art on the opening frame or the window sash during installation, air can be prevented from leaking into the room from the mounting hole, and no additional mounting hole processing fee is required; the opening limiting device of the present invention is built into the profile cavity of the door and window, and when the window sash is in the "closed state", the card receiving component cannot be seen, and no other components can be seen on the surface of the window sash except the existing operating handle, so that the components on the surface of the window sash are more streamlined.

[0013] Preferably, the card receiving component is further provided with a return operation part; when the return operation part is operated, the sliding component is disengaged from the clamping part. By operating the return operation part, the sliding component can be driven to disengage from the clamping part, which is convenient and quick.

[0014] Further, the sliding component includes a slider and a fully open operating component;

[0015] The fully-open operating component comprises a fully-open operating body and an inserting portion, wherein the fully-open operating body is connected to the lower end of the sliding block, and the inserting portion is arranged at the lower end of the fully-open operating body; when the sliding component is in the retracted position, the inserting portion is engaged with the engaging portion;

[0016] The card receiving component has a receiving cavity, and the card receiving component includes a supporting side wall, an operating side wall and two oppositely arranged connecting side walls, the supporting side wall and the operating side wall are oppositely arranged, and two opposite side surfaces of each connecting side wall are respectively connected to the supporting side wall and the operating side wall, the supporting side wall, the operating side wall and the two connecting side walls surround the receiving cavity, the clamping portion is arranged in the receiving cavity, and the supporting side wall is installed on the other of the opening frame and the window sash;

[0017] The return operation portion includes a pressure-bearing member, one end of which is elastically deformably connected to the operation side wall; when the pressure-bearing member is elastically deformed, the pressure-bearing member drives the insertion portion to disengage from the clamping portion.

[0018] The fully open operating component of the fully open and half-open mechanism is assembled on the other of the opening frame and the window sash, and the supporting side wall of the card receiving component is installed on the other of the opening frame and the window sash. This structure enables the insertion part and the card receiving component to be installed on the same profile. When the door and window are in a closed state, the opening limiting device is inside the profile cavity of the door and window. Pressing the pressure-bearing part, the pressure-bearing part is elastically deformed, and the pressure-bearing part drives the insertion part to move out of the clamping part in the storage cavity. The setting of the pressure-bearing part facilitates the separation of the insertion part from the clamping part.

[0019] Furthermore, the insertion portion includes two insertion legs arranged opposite to each other, each of the insertion legs includes a leg body connected to the lower end of the fully-open operating body and a clamping portion connected to the lower end of the leg body, and the extension directions of the clamping portions on the two insertion legs are opposite; the clamping portion on one of the insertion legs extends toward a direction close to one of the connecting side walls, and the clamping portion on the other insertion leg extends toward a direction close to the other connecting side wall;

[0020] The engaging portion is a side wall protrusion arranged on the operating side wall of the storage chamber. There are two side wall protrusions, and the horizontal heights of the two side wall protrusions are the same; when the sliding component moves downward to the retracted position, the two side wall protrusions are respectively engaged with the two engaging portions.

[0021] When the engaging portion of the insertion leg moves to the bottom of the side wall protrusion, the two side wall protrusions are respectively engaged with the two engaging portions, and the structure is simple and achieves a stable engaging effect. Since the two side wall protrusions are respectively engaged with the two engaging portions, even if the return operation portion is damaged, the engaging portion and the side wall protrusion can still maintain the engaged state. When it is necessary to disengage the engaging portion from the side wall protrusion, it is only necessary to move the engaging portion of the insertion portion out from under the side wall protrusion.

[0022] Furthermore, the upper surface of the side wall protrusion is an inclined surface inclined downward relative to the horizontal direction, and the lower surface of the side wall protrusion is a plane parallel to the horizontal direction;

[0023] The bottom of each of the engaging parts has an engaging slope that is inclined upward relative to the horizontal direction, the lower edge of the engaging slope extends to the bottom surface of the engaging part, and the upper edge of the engaging slope extends to the side surface of the engaging part opposite to the operating side wall.

[0024] The upper surface of the side wall protrusion is an inclined surface, so that the engaging inclined surface of the engaging part can easily pass through the side wall protrusion and move to the bottom of the side wall protrusion, reducing the operating force of pushing the engaging part into the engaging part; the lower surface of the side wall protrusion is a plane, so that the engaging part and the engaging part can maintain a engaged state, that is, keep the engaging part below the side wall protrusion.

[0025] Furthermore, two pressure-bearing convex parts are provided on the side surface of the pressure-bearing part opposite to the supporting side wall, the two pressure-bearing convex parts are located between the two side wall convex parts, and the horizontal heights of the two pressure-bearing convex parts are equal; the interval between each side wall convex part and the adjacent pressure-bearing convex part is for the insertion of the clamping part, and the upper surface of the pressure-bearing convex part is an inclined surface inclined downward relative to the horizontal direction. This structure enables the pressure-bearing convex part to push the clamping part to move upward when the pressure-bearing part is pressed, so as to facilitate the separation of the clamping part from the clamping part.

[0026] Furthermore, the insertion part further comprises two guide bars, the two leg bodies are located between the two guide bars, the two guide bars constitute a guide part, and the guide part and the receiving cavity are clearance-matched. When the insertion part is inserted into the receiving cavity, the guide bar plays a guiding role to prevent damage caused by the inclination of the insertion part.

[0027] Furthermore, a limiting convex portion is provided at the bottom of the side surface of each guide bar opposite to the supporting side wall; two guide grooves are provided on the supporting side wall, each of which extends in the vertical direction, and the two limiting convex portions are respectively inserted into the two guide grooves. The limiting convex portion provided on the guide bar moves in the guide groove, and the limiting convex portion plays a guiding role; in addition, the guide groove limits the moving stroke of the limiting convex portion, and the moving stroke of the slider is also limited, so that when the slider moves upward to the forward position, the slider does not contact the receiving component, which can reduce the noise when the slider contacts the receiving component.

[0028] Furthermore, the return operation part further includes a support member, and the other end of the pressure bearing member is connected to the supporting side wall through the support member. The inserting part will bend and deform after being used for a long time, and the support member can resist the deformed inserting part to avoid the situation of separation from the clamping part caused by the bending and deformation of the inserting part.

[0029] Furthermore, the support member includes a pressure-bearing connection portion, an intermediate connection portion and an arc-shaped connection portion, the pressure-bearing connection portion is connected to the pressure-bearing member, the pressure-bearing connection portion is connected to the lower end of the intermediate connection portion, the upper end of the intermediate connection portion is connected to the arc-shaped connection portion, the arc-shaped connection portion is bent toward the operating side wall, and the upper end of the arc-shaped connection portion is connected to the supporting side wall. This structure enables the support member to stably support the pressure-bearing member, so that the pressure-bearing member can drive the insertion portion to move out of the clamping portion.

[0030] Furthermore, a stroke limiting portion is provided on the side surface of the support member opposite to the support side wall. The setting of the stroke limiting portion reduces the gap between the support member and the profile, thereby limiting the moving stroke of the return operation portion.

[0031] Furthermore, an operation hole is provided on the operation side wall, and the operation side wall includes an upper edge portion of the operation wall, a lower edge portion of the operation wall, and two oppositely arranged operation wall side edges, the upper end of each of the operation wall side edges is connected to the upper edge portion of the operation wall, and the lower end of each of the operation wall side edges is connected to the lower edge portion of the operation wall, and the upper edge portion of the operation wall, the lower edge portion of the operation wall, and the two operation wall side edges form the operation hole, and the pressure bearing member is in the operation hole, and one end of the pressure bearing member is connected to the lower surface of the upper edge portion of the operation wall. The operation side wall includes an upper edge portion of the operation wall, a lower edge portion of the operation wall, and two oppositely arranged operation wall side edges, and this structure ensures the structural strength of the operation side wall.

[0032] Furthermore, the pressure-bearing member has two pressure-bearing side surfaces that are arranged opposite to each other, and the two pressure-bearing side surfaces are arranged opposite to the two connecting side walls respectively, and a recessed groove is arranged on the upper part of each pressure-bearing side surface, and the recessed groove extends to the lower surface of the upper edge of the operating wall. The provision of the recessed groove reduces the operating force of operating the pressure-bearing member.

[0033] Further, the sliding component includes a sliding block and a protrusion arranged on the sliding block;

[0034] The card receiving component includes a base plate and a hanging part, the base plate is installed on the opening frame and the other of the window sashes; the hanging part is connected to the base plate through a rotating shaft, and the hanging part can rotate around the rotating shaft; the hanging part includes a hanging part body, the clamping part is a hook arranged at the upper end of the hanging part body; the hook is for the protrusion to be clamped; the return operation part is a handle arranged at the lower end of the hanging part body; a torsion spring is sleeved on the rotating shaft, one end of the torsion spring is connected to the base plate, and the other end of the torsion spring is connected to the hanging part body. Push the slider to move downward, and the protrusion on the slider is clamped in the hook; push the handle, the hanging part body rotates, and the protrusion moves out of the hook.

[0035] Preferably, the sliding component comprises a slider and an insert plate connected to the lower end of the slider, and an insert plate convex portion is provided on the positioning surface of the insert plate;

[0036] The card receiving component has a hollow inner cavity for inserting the insert plate, and the clamping part is a blocking member arranged on the clamping mounting surface of the hollow inner cavity, and the clamping mounting surface of the hollow inner cavity is arranged opposite to the positioning surface of the insert plate. When the slider is pushed downward, the insert plate protrusion on the insert plate at the lower end of the slider moves to the bottom of the blocking member in the hollow inner cavity, and the blocking member clamps the insert plate protrusion, which restricts the insert plate from moving upward; when the insert plate is pressed, the insert plate protrusion is separated from the blocking member.

[0037] The present invention also relates to a door and window, comprising an opening frame and a window sash that can be opened and closed relative to the opening frame, characterized in that the door and window are provided with the above-mentioned opening limiting device. The door and window are provided with the opening limiting device, so there is no need to provide a connecting plate that links the operating button with the sliding component in the prior art. Therefore, profiles of doors and windows of different sizes can use the same opening limiting device, thereby improving the compatibility of components. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 It is a schematic structural diagram showing that in an existing opening limiting device, the support rod and the full-open and half-open mechanisms are in a separated state, and the full-open and half-open mechanisms are connected to the operating button via a connecting plate.

[0039] Figure 2It is a schematic structural diagram showing that a pin on a support rod of an existing opening limiting device enters a guide groove of a receiving component.

[0040] Figure 3 It shows a schematic diagram of the structure of the existing opening limit device when the fully open and half-open mechanisms are disassembled.

[0041] Figure 4 It is a schematic structural diagram showing that the window sash of Example 1 is in a fully open state and the sliding component of the opening limiting device moves downward to a retracted position.

[0042] Figure 5 Display as Figure 4 Schematic diagram of the enlarged structure at A.

[0043] Figure 6 It is a schematic structural diagram showing that when the sliding component of the opening limiting device of Example 1 moves downward to the retracted position, the card receiving component is connected to the full-open and half-open mechanism on the side where the operating side wall of the card receiving component is set.

[0044] Figure 7 It is a schematic structural diagram showing that when the sliding component of the opening limiting device of Example 1 moves downward to the retracted position, the card receiving component is connected to the full-open and half-open mechanism on the side of the card receiving component where the supporting side wall is set.

[0045] Figure 8 Display as Figure 7 Schematic diagram of the enlarged structure at B.

[0046] Fig. 9 The diagram shows a three-dimensional structure of a side of the operating side wall of the card receiving component of the opening restriction device of Example 1.

[0047] Fig.10 The diagram shows a plan view of the structure of a card receiving component of the opening restriction device of the first embodiment, on a side where the operating side wall is provided.

[0048] Fig.11 Display as Fig.10 Schematic diagram of the cross-sectional structure along the CC direction.

[0049] Fig.12 It is a schematic diagram of the three-dimensional structure of two clamping parts provided on the card receiving component of the opening limiting device of Example 1.

[0050] Fig.13 The diagram shows the internal three-dimensional structure of the card receiving component of the opening limiting device of Example 1.

[0051] Fig.14 It is a schematic diagram of the three-dimensional structure of two pressure-bearing protrusions provided on the card receiving component of the opening limiting device of Example 1.

[0052] Fig.15 Shown is a schematic three-dimensional structure diagram of the fully-opening operating component of the opening limiting device of Example 1.

[0053] Fig.16 It is a schematic diagram of the three-dimensional structure in which a limiting protrusion is provided on the guide strip of the opening limiting device of Example 1.

[0054] Fig.17 The window sash of Example 1 is shown in a half-open state, and the sliding component of the opening limiting device moves upward to the forward position.

[0055] Fig.18 It is a schematic diagram of the structure of the card receiving component and the full-open and half-open mechanism on the side of the operating side wall of the card receiving component when the sliding component of the opening limiting device of Example 1 moves upward to the forward position.

[0056] Fig.19 It is a schematic structural diagram of the card receiving component and the insertion portion on the side of the card receiving component where the supporting side wall is provided when the sliding component of the opening limiting device of Example 1 moves upward to the forward position.

[0057] Fig. 20 It is a schematic structural diagram showing that the window sash of Example 1 is in a fully open state and the sliding component of the opening limiting device moves upward to the forward position.

[0058] Fig.21 Display as Fig. 20 Schematic diagram of the enlarged structure at D.

[0059] Fig. 22 It is a schematic diagram showing the structure of the window sash of Example 1 when it is in a closed state.

[0060] Fig.23 The window sash of Example 2 is shown in a half-open state, and the sliding component of the opening limiting device moves upward to the forward position.

[0061] Fig.24 The window sash of Example 3 is shown in a half-open state, and the sliding component of the opening limiting device moves upward to the forward position.

[0062] Fig.25 It is a schematic diagram of the three-dimensional structure when the sliding component of the opening limiting device of Example 3 moves upward to the forward position.

[0063] Fig.26 It is a schematic diagram of the three-dimensional structure when the sliding component of the opening limiting device of Example 3 moves downward to the retracted position.

[0064] Fig. 27 The window sash of Example 4 is shown in a half-open state, and the sliding component of the opening limiting device moves upward to the forward position.

[0065] Fig.28 It is a schematic diagram of the three-dimensional structure when the sliding component of the opening limiting device of Example 4 moves upward to the forward position.

[0066] Fig.29 The diagram shows a three-dimensional structure of an insertion plate of the opening limiting device of Example 4.

[0067] Fig.30 The diagram shows a three-dimensional structure of a card receiving portion of an opening limiting device according to a fourth embodiment.

[0068] Fig.31 It is a schematic diagram of the three-dimensional structure of the opening limiting device of Example 4 when the sliding component moves downward to the retracted position.

[0069] Fig.32 Display as Fig.32 Schematic diagram of the enlarged structure at F.

[0070] Fig.33 It is shown as a schematic diagram of a structure with a pin on the support rod.

[0071] Fig.34 It is a schematic diagram showing the structure of the opening limiting device of Example 3 when the hanging part body is not installed on the rotating shaft.

[0072] Fig.35 It is a schematic structural diagram showing the sliding component of the opening limiting device moving downward to the retracted position when the window sash of Example 5 is in a fully open state.

[0073] Fig.36 It is a schematic structural diagram showing the sliding component of the opening limiting device moving downward to the retracted position when the window sash of Example 6 is in a fully open state.

[0074] Description of Figure Numbers

[0075] 1 Pole

[0076] 2 Attachment parts

[0077] 3 Sliding parts

[0078] 4 Pins

[0079] 5 Guide slot

[0080] 6 Connecting plate

[0081] 7 Operation buttons

[0082] 8 Force applying mechanism

[0083] 9 Fully open, half open mechanism

[0084] 100 poles

[0085] 110 Pins

[0086] 200 card receiving unit

[0087] 210 Card connection

[0088] 211 Upper surface of the side wall protrusion

[0089] 212 Lower surface of the side wall protrusion

[0090] 220 reset operation unit

[0091] 221 Pressure bearing parts

[0092] 2211 Pressure side

[0093] 2212 Depression

[0094] 222 Pressure-bearing convex part

[0095] 2221 Upper surface of the pressure-bearing convex part

[0096] 223 Support

[0097] 2231 Pressure-bearing connection

[0098] 2232 Intermediate connection

[0099] 2233 Arc connection

[0100] 224 Stroke Limitation Unit

[0101] 230 Support side wall

[0102] 240 Operating side wall

[0103] 241 Upper edge of operating wall

[0104] 242 Lower edge of operating wall

[0105] 243 Operating wall side edge

[0106] 244 Operation hole

[0107] 245 Storage cavity

[0108] 250 Connecting side wall

[0109] 260 Suspension body

[0110] 270 Shaft

[0111] 280 Hollow Cavity

[0112] 281 Snap-on mounting surface for hollow interior

[0113] 282 Through hole part

[0114] 290 substrate

[0115] 291 Torsion spring

[0116] 300 Attachment parts

[0117] 310 Guide slot

[0118] 400 Sliding parts

[0119] 410 Slider

[0120] 420 Fully open operation body

[0121] 430 Insertion

[0122] 431 Leg Body

[0123] 432 snap-fit ​​part

[0124] 433 engaging bevel

[0125] 434 Guide Strip

[0126] 435 Edge Surface

[0127] 436 Limiting convex part

[0128] 440 Insert Plate

[0129] 441 Locating surface of insert plate

[0130] 442 Board protrusion

[0131] 450 Bump

[0132] 460 Pad

[0133] 470 Fasteners

[0134] 500 Opening frame

[0135] 510 Upper frame

[0136] 520 Lower frame

[0137] 530 Left vertical frame

[0138] 540 right vertical frame

[0139] 600 Window Sash

[0140] 601 Operating handle

[0141] 610 Upper sash frame

[0142] 620 lower sash frame

[0143] 630 Left leaf longitudinal frame

[0144] 640 right leaf vertical frame DETAILED DESCRIPTION

[0145] The following is a description of the implementation of the present invention by means of specific embodiments. Those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

[0146] Please refer to the attached drawings. It should be noted that the structures, proportions, sizes, etc. illustrated in the attached drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the present invention, so they have no substantial technical significance. Any modification of the structure, change in the proportional relationship, or adjustment of the size should still fall within the scope of the technical content disclosed by the present invention without affecting the effects and purposes that can be achieved by the present invention. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" quoted in this specification are only for the convenience of description, and are not used to limit the scope of the implementation of the present invention. The change or adjustment of their relative relationship should also be regarded as the scope of the implementation of the present invention without substantially changing the technical content.

[0147] Example 1

[0148] like Figure 4 and Fig.17 As shown, the door and window of this embodiment is an outward opening window with a window sash 600 installed relative to an opening frame 500 so as to be openable and closable. The opening frame 500 is arranged on the opening of the building, and the opening frame 500 is a rectangle formed by assembling an upper frame 510, a lower frame 520, a left vertical frame 530 and a right vertical frame 540 into a square frame. The window sash 600 is formed by assembling an upper sash frame 610, a lower sash frame 620, a left vertical frame 630 and a right vertical frame 640 into a square frame, and installing glass plates between the upper sash frame 610, the lower sash frame 620, the left vertical frame 630 and the right vertical frame 640. The upper sash frame 610 is connected to the upper frame 510 by an upper hinge mechanism not shown in the figure, and the lower sash frame 620 is connected to the lower frame 520 by a lower hinge mechanism not shown in the figure, and the left vertical frame 630 can be opened and moved toward the outdoor side.

[0149] In this door and window, in addition to a lock device for locking and unlocking the window sash 600 relative to the opening frame 500 by operating the operating handle 601, an opening restriction device is also provided.

[0150] Figure 4Indicates the opening limit device when the window sash 600 is in the fully open state. Fig. 22 As shown in FIG. 1 , the “fully closed state” is a state in which the window sash 600 completely closes the opening formed by the opening frame 500 and cannot continue to close and move; Figure 4 As shown, the "fully open state" is a state in which the opening movement reaches the limit position of the permissible opening movement and the opening movement cannot be continued.

[0151] like Figures 4 to 8 , Figures 17 to 22 , Fig.33 As shown, the opening limiting device of this embodiment,

[0152] It includes: a support rod 100, a card receiving component 200 and a fully open and half-open mechanism;

[0153] The support rod 100 is supported and rotatable by one of the opening frame 500 and the window sash 600 which is provided to be openable and closable relative to the opening frame 500, and a pin 110 is provided on the support rod 100;

[0154] The fully open / half open mechanism is mounted on the other of the opening frame 500 and the window sash 600, and comprises a receiving component 300 and a sliding component 400, wherein the receiving component 300 has a guide groove 310, and the pin 110 on the support rod 100 can enter the guide groove 310; the sliding component 400 is mounted to be able to move between a forward position close to the guide groove 310 and a retracted position away from the guide groove 310;

[0155] The card receiving component 200 is installed on the other of the opening frame 500 and the window sash 600. The card receiving component 200 is located below the sliding component 400. The card receiving component 200 is provided with a clamping portion 210.

[0156] When the sliding member 400 is forced by the force applying mechanism, the sliding member 400 is located at the forward position, and the sliding member 400 closes the open end of the guide groove 310;

[0157] The sliding component 400 is driven to move downward, the sliding component 400 overcomes the elastic force of the force-applying mechanism, and the sliding component 400 moves in a direction away from the guide groove 310, and the open end of the guide groove 310 is opened. When the sliding component 400 moves downward to the retracted position, the sliding component 400 is engaged with the engaging portion 210;

[0158] When the sliding member 400 is driven to disengage from the clamping portion 210, the sliding member 400 moves upward and returns to the forward position.

[0159] When the pin 110 on the support rod 100 enters the guide groove 310, the opening degree of the moving window sash 600 is limited to a predetermined size; at this time, the window sash 600 is in a "half-open state"; when the pin 110 is disengaged from the guide groove 310, the window sash 600 can be opened to a fully open state.

[0160] The card receiving component 200 is installed on the other of the opening frame 500 and the window sash 600. The card receiving component 200 is located below the sliding component 400. When the sliding component 400 is driven to move downward to the retracted position, the sliding component 400 is engaged with the engaging portion 210. At this time, the open end of the guide groove 310 is opened; when the sliding component 400 is driven to disengage from the engaging portion 210, the sliding component 400 moves upward to the forward position; since the card receiving component 200 does not need to be provided with the mounting hole in the prior art on the opening frame 500 or the window sash 600 during installation, air can be prevented from leaking into the room from the mounting hole without the need for additional mounting hole processing fees; the opening limiting device of the present invention is built into the profile cavity of the door and window. When the window sash 600 is in the "closed state", the card receiving component 200 cannot be seen. Except for the existing operating handle 601, no other components can be seen on the surface of the window sash 600, making the components on the surface of the window sash 600 more streamlined. Whether the window sash 600 is in a half-open state or in a fully-open state, the sliding component 400 can be driven to move. In this embodiment, the force applying mechanism is a spring.

[0161] The card receiving component 200 is also provided with a return operation part 220; when the return operation part 220 is operated, the sliding component 400 is separated from the clamping part 210. By operating the return operation part 220, the sliding component 400 can be driven to separate from the clamping part 210, which is convenient and quick.

[0162] like Figures 5 to 18 As shown, the sliding component 400 includes a slider 410 and a fully open operating component;

[0163] The fully open operating component includes a fully open operating body 420 and an inserting portion 430. The fully open operating body 420 is connected to the lower end of the slider 410, and the inserting portion 430 is disposed at the lower end of the fully open operating body 420. When the sliding component 400 is in the retracted position, the inserting portion 430 is engaged with the engaging portion 210.

[0164] The card receiving component 200 has a receiving cavity 245. The card receiving component 200 includes a supporting side wall 230, an operating side wall 240 and two oppositely arranged connecting side walls 250. The supporting side wall 230 and the operating side wall 240 are oppositely arranged. Two opposite side surfaces of each connecting side wall 250 are respectively connected to the supporting side wall 230 and the operating side wall 240. The supporting side wall 230, the operating side wall 240 and the two oppositely arranged connecting side walls 250 form a receiving cavity 245. The clamping portion 210 is arranged in the receiving cavity 245. The supporting side wall 230 is installed on the other of the opening frame 500 and the window sash 600.

[0165] The return operation portion 220 includes a pressure-bearing member 221 , one end of which is elastically connected to the operation side wall 240 . When the pressure-bearing member 221 is elastically deformed, the pressure-bearing member 221 drives the insertion portion 430 to be separated from the clamping portion 210 .

[0166] The fully open operating part of the fully open and half-open mechanism is assembled on the other of the opening frame 500 and the window sash 600, and the supporting side wall 230 of the card receiving component 200 is installed on the other of the opening frame 500 and the window sash 600, that is, the fully open and half-open mechanism and the supporting side wall 230 of the card receiving component 200 are both installed on the other of the opening frame 500 and the window sash 600; this structure enables the insertion part 430 and the card receiving component 200 to be installed on the same profile, so when the door and window are closed, the opening limiting device is inside the profile cavity of the door and window. Press the pressure bearing member 221, the pressure bearing member 221 is elastically deformed, and the pressure bearing member 221 drives the insertion part 430 to move out of the clamping part 210 in the storage cavity 245. The setting of the pressure bearing member 221 facilitates the separation of the insertion part 430 from the clamping part 210.

[0167] The support rod 100 is supported and rotatable by one of the opening frame 500 and the window sash 600 which is arranged to be openable and movably relative to the opening frame 500, and a pin 110 is provided on the support rod 100; the fully open and half open mechanism is assembled on the other of the opening frame 500 and the window sash 600, and the card receiving component 200 is installed on the other of the opening frame 500 and the window sash 600; that is, when the support rod 100 is arranged on the opening frame 500, the fully open and half open mechanism and the card receiving component 200 are installed on the window sash 600; when the support rod 100 is arranged on the window sash 600, the fully open and half open mechanism and the card receiving component 200 are installed on the opening frame 500. In this embodiment, the support rod 100 is arranged on the left vertical frame 630 of the window sash 600, and the fully open and half-open mechanisms and the card receiving and receiving component 200 are all assembled on the left vertical frame 530 of the opening frame 500; the supporting side wall 230 of the card receiving and receiving component 200 is installed on the left vertical frame 530 through the fastener 470; the opposite sides of the slider 410 are respectively connected to the fully open operating body 420 and the pad 460, and the fastener 470 connects the slider 410, the fully open operating body 420 and the pad 460 in series. This structure facilitates the installation and replacement of the card receiving and receiving component 200 and the fully open operating component. The fastener 470 is a screw.

[0168] The insertion portion 430 includes two insertion legs arranged opposite to each other, each insertion leg includes a leg body 431 connected to the lower end of the fully-open operating body 420 and a clamping portion 432 connected to the lower end of the leg body 431, and the clamping portions 432 on the two insertion legs extend in opposite directions; the clamping portion 432 on one of the insertion legs extends toward a direction close to one of the connecting side walls 250, and the clamping portion 432 on the other insertion leg extends toward a direction close to the other connecting side wall 250;

[0169] The engaging portion 210 is a side wall protrusion disposed on the operating side wall 240 of the storage cavity 245 . There are two side wall protrusions, and the horizontal heights of the two side wall protrusions are the same. When the sliding component 400 moves downward to the retracted position, the two side wall protrusions are respectively engaged with the two engaging portions 432 .

[0170] When the engaging portion 432 of the insertion leg moves to the bottom of the side wall protrusion, the two side wall protrusions are respectively engaged with the two engaging portions 432. This structure is simple and achieves a stable engaging effect. Since the two side wall protrusions are respectively engaged with the two engaging portions 432, even if the return operation portion 220 is damaged, the engaging portion 432 and the side wall protrusion can maintain the engaged state. When it is necessary to disengage the engaging portion 432 from the side wall protrusion, it is only necessary to move the engaging portion 432 of the insertion portion 430 out from the bottom of the side wall protrusion.

[0171] The upper surface 211 of the side wall protrusion is an inclined surface inclined downward relative to the horizontal direction, and the lower surface 212 of the side wall protrusion is a plane parallel to the horizontal direction;

[0172] The bottom of each engaging portion 432 has an engaging inclined surface 433 that is inclined upward relative to the horizontal direction, the lower edge of the engaging inclined surface 433 extends to the bottom surface of the engaging portion 432, and the upper edge of the engaging inclined surface 433 extends to the side surface of the engaging portion 432 opposite to the operating side wall 240. The upper surface 211 of the side wall protrusion is an inclined surface, so that the engaging inclined surface 433 of the engaging portion 432 can easily pass through the side wall protrusion and move to the bottom of the side wall protrusion, reducing the operating force of pushing the engaging portion 432 into the engaging portion 210; the lower surface 212 of the side wall protrusion is a plane, so that the engaging portion 432 and the engaging portion 210 can maintain the engaging state, that is, keep the engaging portion 432 below the side wall protrusion.

[0173] Two pressure-bearing protrusions 222 are provided on the side of the pressure-bearing member 221 opposite to the supporting side wall 230. The two pressure-bearing protrusions 222 are located between the two side wall protrusions, and the horizontal heights of the two pressure-bearing protrusions 222 are equal; the interval between each side wall protrusion and the adjacent pressure-bearing protrusion 222 is for the insertion of the clamping portion 432, and the upper surface 2221 of the pressure-bearing protrusion is an inclined surface inclined downward relative to the horizontal direction. This structure enables the pressure-bearing protrusion 222 to easily push the clamping portion 432 to move upward when the pressure-bearing member 221 is pressed, so that the clamping portion 432 is easily separated from the clamping portion 210.

[0174] The inserting portion 430 further includes two guide bars 434, and the two leg bodies 431 are located between the two guide bars 434. The two guide bars 434 constitute a guide portion, and the guide portion and the receiving cavity 245 are clearance-matched. When the inserting portion 430 is inserted into the receiving cavity 245, the guide bars 434 play a guiding role to prevent damage caused by the tilt of the inserting portion 430. The side of each guide bar 434 away from the leg body 431 is an edge surface 435, and the distance between the edge surfaces 435 of the two guide bars 434 is equal to the interval between the two connecting side walls 250.

[0175] A limiting convex portion 436 is provided at the bottom of the side surface of each guide bar 434 opposite to the supporting side wall 230; two guide grooves 231 are provided on the supporting side wall 230, each of which extends in the vertical direction, and the two limiting convex portions 436 are respectively inserted into the two guide grooves 231. The limiting convex portions 436 provided on the guide bar 434 move in the guide grooves 231, and the limiting convex portions 436 serve as guides; in addition, the guide grooves 231 limit the moving stroke of the limiting convex portions 436, and the moving stroke of the slider 410 is also limited, so that when the slider 410 moves upward to the forward position, the slider 410 does not contact the receiving component 300, which can reduce the noise when the slider 410 contacts the receiving component 300.

[0176] The return operation part 220 further includes a support member 223, and the other end of the pressure bearing member 221 is connected to the supporting side wall 230 through the support member 223. The insertion part 430 will bend and deform after a long period of use, and the support member 223 can resist the deformed insertion part 430 to prevent the insertion part 430 from being separated from the clamping part due to the bending deformation.

[0177] The support member 223 includes a pressure-bearing connection portion 2231, an intermediate connection portion 2232, and an arc-shaped connection portion 2233. One end of the pressure-bearing connection portion 2231 is connected to the pressure-bearing member 221, the other end of the pressure-bearing connection portion 2231 is connected to the lower end of the intermediate connection portion 2232, the upper end of the intermediate connection portion 2232 is connected to the arc-shaped connection portion 2233, the arc-shaped connection portion 2233 is bent toward the operating side wall 240, and the upper end of the arc-shaped connection portion 2233 is connected to the supporting side wall 230. The support member 223 can stably support the pressure-bearing member 221, so that the pressure-bearing member 221 drives the insertion portion 430 to disengage from the clamping portion 210. In this embodiment, the intermediate connection portion 2232 is arranged along the vertical direction, and the pressure-bearing connection portion 2231 is arranged along the horizontal direction.

[0178] A stroke limiting portion 224 is provided on the side of the support member 223 opposite to the support side wall 230. The stroke limiting portion 224 is provided to reduce the gap between the support member 223 and the profile, limit the moving stroke of the return operation portion 220, and avoid damage to the pressure member 221 and the support member 223 due to excessive deformation.

[0179] An operation hole 244 is provided on the operation side wall 240. The operation side wall 240 includes an operation wall upper edge 241, an operation wall lower edge 242, and two operation wall side edge portions 243 arranged oppositely. The upper end of each operation wall side edge portion 243 is connected to the operation wall upper edge 241, and the lower end of each operation wall side edge portion 243 is connected to the operation wall lower edge 242. The operation wall upper edge 241, the operation wall lower edge 242, and the two operation wall side edge portions 243 arranged oppositely form the operation hole 244. The pressure bearing member 221 is in the operation hole 244, and one end of the pressure bearing member 221 is connected to the lower surface of the operation wall upper edge 241. The operation side wall 240 includes an operation wall upper edge 241, an operation wall lower edge 242, and two operation wall side edge portions 243 arranged oppositely. This structure ensures the structural strength of the operation side wall 240.

[0180] The pressure bearing member 221 has two oppositely disposed pressure bearing side surfaces 2211, which are respectively disposed opposite to the two connecting side walls 250, and each pressure bearing side surface 2211 has a recessed groove 2212 at its upper portion, which extends to the lower surface of the upper edge portion 241 of the operating wall. The provision of the recessed groove 2212 reduces the operating force of the pressure bearing member 221.

[0181] The present invention also relates to a door and window, comprising an opening frame 500 and a window sash 600 that can be opened and closed relative to the opening frame 500, and an opening limiting device. The door and window is provided with an opening limiting device, so that there is no need to provide a connecting plate that links the operating button with the sliding component 400 in the prior art. Therefore, profiles of doors and windows of different sizes can use the same opening limiting device, thereby improving the compatibility of components.

[0182] Example 2

[0183] like Fig.23 As shown, the difference between this embodiment and embodiment 1 is that, in this embodiment, the door and window are inward-opening windows, the support rod 100 is arranged on the left longitudinal frame 530 of the opening frame 500, and the full-open and half-open mechanisms and the card receiving component 200 are all assembled on the left longitudinal frame 630 of the window sash 600.

[0184] Example 3

[0185] like Figure 24 to Figure 26 ,as well as Fig.34 As shown, the difference between this embodiment and embodiment 2 is that the sliding component 400 includes a slider 410 and a protrusion 450 disposed on the slider 410;

[0186] The card receiving component 200 includes a base plate 290 and a hanging part, the base plate 290 is installed on the other of the opening frame 500 and the window sash 600; the hanging part is connected to the base plate 290 through a rotating shaft 270, and the hanging part can rotate around the rotating shaft 270; the hanging part includes a hanging part body 260, the clamping part 210 is a hook arranged at the upper end of the hanging part body 260; the hook is for the protrusion 450 to be clamped; the return operation part 220 is a handle arranged at the lower end of the hanging part body 260, and a torsion spring 291 is sleeved on the rotating shaft 270, one end of the torsion spring 291 is connected to the base plate 290, and the other end of the torsion spring 291 is connected to the hanging part body 260. The torsion spring 291 supports the hanging body 260 and pushes the slider 410 to move downward, and the protrusion 450 on the slider 410 is engaged in the hook; the handle 261 is pushed, the hanging body 260 rotates, and the protrusion 450 moves out of the hook.

[0187] Example 4

[0188] like Figures 27 to 32 As shown, the difference between this embodiment and embodiment 2 is that the sliding component 400 includes a slider 410 and an insert plate 440 connected to the lower end of the slider 410, and an insert plate protrusion 442 is provided on the positioning surface 441 of the insert plate;

[0189] The interior of the card receiving component 200 has a hollow inner cavity 280 for inserting the insertion plate 440. The outer surface of the card receiving component 200 is provided with a through hole portion 282 connected to the hollow inner cavity 280. The clamping portion 210 is a blocking member arranged on the clamping mounting surface 281 of the hollow inner cavity. The clamping mounting surface 281 of the hollow inner cavity is arranged opposite to the positioning surface 441 of the insertion plate; the blocking member is located above the through hole portion 282. When the slider 410 is pushed downward, the insertion plate protrusion 442 on the insertion plate 440 at the lower end of the slider 410 moves to the bottom of the blocking member in the hollow inner cavity 280, and the blocking member clamps the insertion plate protrusion 442, and the blocking member restricts the insertion plate 440 from moving upward; the insertion plate 440 is pressed through the through hole portion 282, and the insertion plate protrusion 442 is separated from the blocking member. The provision of the through hole portion 282 facilitates pressing the insertion plate 440.

[0190] Example 5

[0191] like Fig.35 As shown, the difference between this embodiment and embodiment 3 is that, in this embodiment, the door and window are outward-opening windows, the support rod 100 is arranged on the left longitudinal frame 630 of the window sash 600, and the full-open and half-open mechanisms and the card receiving component 200 are all assembled on the left longitudinal frame 530 of the opening frame 500.

[0192] Example 6

[0193] like Fig.36 As shown, the difference between this embodiment and embodiment 4 is that, in this embodiment, the door and window are outward-opening windows, the support rod 100 is arranged on the left longitudinal frame 630 of the window sash 600, and the full-open and half-open mechanisms and the card receiving component 200 are all assembled on the left longitudinal frame 530 of the opening frame 500.

[0194] In summary, the present invention effectively overcomes various shortcomings of the prior art and has high industrial utilization value.

[0195] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the art may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical concept disclosed by the present invention shall still be covered by the claims of the present invention.

Claims

1. An opening limiting device, characterized in that: include: A support rod (100), a card receiving component (200), and a fully open and half-open mechanism; The support rod (100) is supported and rotatable by one of the opening frame (500) and the window sash (600) which is arranged to be openable and closable relative to the opening frame (500), and a pin (110) is provided on the support rod (100); The fully open / half open mechanism is mounted on the other of the opening frame (500) and the window sash (600), and comprises a receiving component (300) and a sliding component (400), wherein the receiving component (300) comprises a guide groove (310), and the pin (110) on the support rod (100) can enter the guide groove (310); the sliding component (400) is mounted to be able to move between a forward position close to the guide groove (310) and a retracted position away from the guide groove (310); the card receiving component (200) is mounted on the other of the opening frame (500) and the window sash (600), wherein the card receiving component (200) is located below the sliding component (400), and a clamping portion (210) is provided on the card receiving component (200); When the sliding component (400) is forced by the force applying mechanism, the sliding component (400) is located at the forward position, and the sliding component (400) closes the open end of the guide groove (310); The sliding component (400) is driven to move downward, the sliding component (400) overcomes the elastic force of the force-applying mechanism, the sliding component (400) moves in a direction away from the guide groove (310), the open end of the guide groove (310) is opened, and when the sliding component (400) moves downward to the retracted position, the sliding component (400) is engaged with the engaging portion (210); When the sliding component (400) is driven to disengage from the clamping portion (210), the sliding component (400) moves upward, and the sliding component (400) returns to the forward position; When the pin (110) on the support rod (100) enters the guide groove (310), the opening degree of the moving window sash (600) is limited to a predetermined size; when the pin (110) is separated from the guide groove (310), the window sash (600) can be opened to a fully open state.

2. The opening limiting device according to claim 1, characterized in that: The card receiving component (200) is also provided with a return operation part (220); when the return operation part (220) is operated, the sliding component (400) is disengaged from the clamping part (210).

3. The opening limiting device according to claim 2, characterized in that: The sliding component (400) comprises a slider (410) and a fully-opening operating component; The fully-open operating component comprises a fully-open operating body (420) and an inserting portion (430), wherein the fully-open operating body (420) is connected to the lower end of the sliding block (410), and the inserting portion (430) is arranged at the lower end of the fully-open operating body (420); when the sliding component (400) is in the retracted position, the inserting portion (430) is engaged with the engaging portion (210); The card receiving component (200) has a receiving cavity (245), and the card receiving component (200) comprises a supporting side wall (230), an operating side wall (240) and two connecting side walls (250) arranged opposite to each other, the supporting side wall (230) and the operating side wall (240) are arranged opposite to each other, and two opposite side surfaces of each connecting side wall (250) are respectively connected to the supporting side wall (230) and the operating side wall (240), and the supporting side wall (230), the operating side wall (240) and the two connecting side walls (250) surround the receiving cavity (245), the clamping portion (210) is arranged in the receiving cavity (245), and the supporting side wall (230) is installed on the other of the opening frame (500) and the window sash (600); The return operation portion (220) comprises a pressure-bearing member (221), one end of which is elastically deformably connected to the operation side wall (240); when the pressure-bearing member (221) is elastically deformed, the pressure-bearing member (221) drives the insertion portion (430) to disengage from the clamping portion (210).

4. The opening limiting device according to claim 3, characterized in that: The insertion portion (430) includes two insertion legs arranged opposite to each other, each of the insertion legs includes a leg body (431) connected to the lower end of the fully-open operating body (420) and a clamping portion (432) connected to the lower end of the leg body (431), and the clamping portions (432) on the two insertion legs extend in opposite directions; the clamping portion (432) on one of the insertion legs extends in a direction close to one of the connecting side walls (250), and the clamping portion (432) on the other insertion leg extends in a direction close to the other connecting side wall (250); The engaging portion (210) is a side wall protrusion arranged on the operating side wall (240) of the storage chamber (245), and there are two side wall protrusions, and the horizontal heights of the two side wall protrusions are the same; when the sliding component (400) moves downward to the retracted position, the two side wall protrusions are respectively engaged with the two engaging portions (432).

5. The opening limiting device according to claim 4, characterized in that: The upper surface (211) of the side wall protrusion is an inclined surface arranged downwardly with respect to the horizontal direction, and the lower surface (212) of the side wall protrusion is a plane parallel to the horizontal direction; The bottom of each of the locking portions (432) has a locking inclined surface (433) that is inclined upward relative to the horizontal direction, the lower edge of the locking inclined surface (433) extends to the bottom surface of the locking portion (432), and the upper edge of the locking inclined surface (433) extends to the side surface of the locking portion (432) opposite to the operating side wall (240).

6. The opening limiting device according to claim 5, characterized in that: Two pressure-bearing protrusions (222) are provided on the side surface of the pressure-bearing member (221) opposite to the supporting side wall (230), the two pressure-bearing protrusions (222) are located between the two side wall protrusions, and the horizontal heights of the two pressure-bearing protrusions (222) are equal; the interval between each side wall protrusion and the adjacent pressure-bearing protrusion (222) is for the insertion of the locking portion (432), and the upper surface of the pressure-bearing protrusion (222) is an inclined surface arranged downwardly with respect to the horizontal direction.

7. The opening limiting device according to any one of claims 4 to 6, characterized in that: The insertion portion (430) further comprises two guide strips (434), and the two leg bodies (431) are located between the two guide strips (434); the two guide strips (434) constitute a guide portion, and the guide portion and the receiving cavity (245) are in clearance fit.

8. The opening limiting device according to claim 7, characterized in that: A limiting protrusion (436) is provided at the bottom of the side surface of each guide strip (434) opposite to the supporting side wall (230); two guide grooves (231) are provided on the supporting side wall (230), each of the guide grooves (231) extends in a vertical direction, and the two limiting protrusions (436) are respectively inserted into the two guide grooves (231).

9. The opening limiting device according to claim 4, characterized in that: The return operation part (220) further comprises a support member (223), and the other end of the pressure-bearing member (221) is connected to the supporting side wall (230) via the support member (223).

10. The opening limiting device according to claim 9, characterized in that: The support member (223) includes a pressure-bearing connection portion (2231), an intermediate connection portion (2232) and an arc-shaped connection portion (2233); the pressure-bearing connection portion (2231) is connected to the pressure-bearing member (221); the pressure-bearing connection portion (2231) is connected to the lower end of the intermediate connection portion (2232); the upper end of the intermediate connection portion (2232) is connected to the arc-shaped connection portion (2233); the arc-shaped connection portion (2233) is bent toward the operating side wall (240); and the upper end of the arc-shaped connection portion (2233) is connected to the supporting side wall (230).

11. The opening limiting device according to claim 9, characterized in that: A stroke limiting portion (224) is provided on the side surface of the support member (223) opposite to the supporting side wall (230).

12. The opening limiting device according to claim 4, characterized in that: An operating hole (244) is provided on the operating side wall (240). The operating side wall (240) comprises an operating wall upper edge portion (241), an operating wall lower edge portion (242) and two operating wall side edge portions (243) arranged opposite to each other. The upper end of each operating wall side edge portion (243) is connected to the operating wall upper edge portion (241), and the lower end of each operating wall side edge portion (243) is connected to the operating wall lower edge portion (242). The operating wall upper edge portion (241), the operating wall lower edge portion (242) and the two operating wall side edge portions (243) form the operating hole (244). The pressure bearing member (221) is located in the operating hole (244), and one end of the pressure bearing member (221) is connected to the lower surface of the operating wall upper edge portion (241).

13. The opening limiting device according to claim 12, characterized in that: The pressure-bearing member (221) has two pressure-bearing side surfaces (2211) that are arranged opposite to each other. The two pressure-bearing side surfaces (2211) are respectively arranged opposite to the two connecting side walls (250). A recessed groove (2212) is provided at the upper portion of each of the pressure-bearing side surfaces (2211). The recessed groove (2212) extends to the lower surface of the upper edge portion (241) of the operating wall.

14. The opening limiting device according to claim 2, characterized in that: The sliding component (400) comprises a sliding block (410) and a protrusion (450) arranged on the sliding block (410); The card receiving component (200) includes a base plate (290) and a hanging component, wherein the base plate (290) is installed on the other of the opening frame (500) and the window sash (600); the hanging component is connected to the base plate (290) via a rotating shaft (270), and the hanging component can rotate around the rotating shaft (270); the hanging component includes a hanging part body (260), the clamping part (210) is a hook arranged at the upper end of the hanging part body (260); the hook is for the protrusion (450) to be clamped; the return operation part (220) is a handle arranged at the lower end of the hanging part body (260); a torsion spring (291) is sleeved on the rotating shaft (270), one end of the torsion spring (291) is connected to the base plate (290), and the other end of the torsion spring (291) is connected to the hanging part body (260).

15. The opening limiting device according to claim 1, characterized in that: The sliding component (400) comprises a slider (410) and an insert plate (440) connected to the lower end of the slider (410), and an insert plate protrusion (442) is provided on a positioning surface (441) of the insert plate (440); The interior of the card receiving component (200) has a hollow inner cavity (280) for the insertion plate (440) to be inserted, and the clamping portion (210) is a blocking member arranged on the clamping mounting surface (281) of the hollow inner cavity (280), and the clamping mounting surface (281) of the hollow inner cavity (280) and the positioning surface (441) of the insertion plate (440) are arranged relative to each other.

16. A door and window, comprising an opening frame (500) and a window sash (600) arranged to be movable relative to the opening frame (500), characterized in that: It is equipped with an opening limiting device as described in any one of claims 1 to 15.

Images