A limiting structure and a casement bottom-hung window

Abstract

The application is suitable for the field of door and window manufacturing, and provides a limiting structure and a casement bottom-hung window. The limiting structure comprises a lock seat and an adjusting assembly. The adjusting assembly is arranged on a window sash. The lock seat is arranged at the bottom of a window frame. The lock seat is provided with a first limiting part. The adjusting assembly movably has a locking piece. The locking piece can be matched with the first limiting part. The locking piece has an initial position and a second position. When the transmission assembly is in a casement position and the locking piece is in the initial position, the locking piece is separated from the first limiting part. When the locking piece is in the second position, the locking piece is matched with the first limiting part to limit the window sash from being opened horizontally. When the transmission assembly is switched from the casement position to a bottom-hung position, the locking piece is matched with the first limiting part to lock the window sash and the bottom edge of the window frame. The safety hazard of falling caused by the horizontal opening of the window sash due to misoperation can be avoided. The window structure is arranged inside to ensure the integrity and the aesthetic appearance of the outside of the window structure.

Description

Technical Field

[0001] This invention belongs to the field of door and window manufacturing, and particularly relates to a limiting structure and a casement bottom-hung window. Background Technology

[0002] In building construction, casement and bottom-hung windows are becoming increasingly common. This type of window can be opened in either direction (casement or bottom-hung). When opened, it allows for ample ventilation while the window is tilted down, ensuring ventilation when the user is outside while preventing rainwater from entering during windy or rainy weather. Therefore, casement and bottom-hung windows are gaining popularity. However, since both the casement and bottom-hung positions are operated via handles, children can easily accidentally open the window to the casement position when no adults are present, potentially posing a safety hazard of falling out of the window. Summary of the Invention

[0003] This invention provides a limiting structure, which aims to solve the problem that the existing technology cannot restrict the opening of window sashes, which makes it easy for children to accidentally open the window sashes and create safety hazards.

[0004] This invention is implemented as follows: a limiting structure for a casement window with a bottom-hung design, the casement window with a bottom-hung design includes a window sash, a window frame, and a transmission assembly. The transmission assembly includes a casement position, a locked position, and a bottom-hung position. The limiting structure includes:

[0005] A lock base is provided on the window frame, and the lock base is provided with a first limiting part;

[0006] An adjustment component is movably disposed on the side of the window sash and is connected to the transmission component in a driving manner;

[0007] A locking element is movably disposed on the window sash and connected to the adjustment assembly. The locking element has an initial position and a second position in the direction of movement of the adjustment assembly. The adjustment assembly is used to adjust the position change of the locking element between the initial position and the second position.

[0008] When the transmission component is in the open position, the transmission component drives the adjustment component and the locking component to a preset position. When the locking component is in the initial position, the locking component is separated from the first limiting part, and the window sash can be opened. When the locking component is in the second position, the locking component cooperates with the first limiting part to restrict the window sash from opening.

[0009] Furthermore, the locking member is located at the bottom of the window sash, and the lock seat is located at the bottom of the window frame. When the transmission assembly switches from the open position to the overhang position, the locking member is in the initial position or the second position. The transmission assembly drives the adjustment assembly and the locking member to leave the preset position and make the locking member cooperate with the first limiting part to lock the bottom edge of the window sash and the window frame.

[0010] Furthermore, the locking element is movably disposed at the bottom of the outer side of the window sash, the lock seat is fixedly disposed at the bottom of the inner side of the window frame, and the adjustment assembly further includes:

[0011] A base plate is movably disposed on the outer side of the window sash and above the locking member. The base plate is connected to the transmission assembly. The base plate is provided with a first hole and a second hole at intervals along the moving direction of the adjusting assembly.

[0012] A panel is movably disposed on the outer side of the window sash and above the locking member. The panel is connected to the locking member, and a connecting post is telescopically provided on the panel that can cooperate with the first hole or the second hole.

[0013] When the connecting post engages with the first hole, the locking element is in the initial position; when the connecting post engages with the second hole, the locking element is in the second position.

[0014] Furthermore, the locking element is movably disposed on the bottom edge of the window sash, the lock seat is fixedly disposed on the bottom edge of the window frame, and the adjustment assembly further includes:

[0015] A base plate is movably disposed on the outer side of the window sash and above the locking member. The base plate is connected to the transmission assembly. The base plate is provided with a first hole and a second hole at intervals along the moving direction of the adjusting assembly.

[0016] A panel is movably disposed on the outer side of the window sash, and the panel is provided with a connecting post that can be engaged with the first hole or the second hole.

[0017] An angle actuator is located at the corner of the window sash and is connected to the panel and the locking component respectively;

[0018] When the connecting post engages with the first hole, the locking element is in the initial position; when the connecting post engages with the second hole, the locking element is in the second position.

[0019] Furthermore, the connecting post can extend and retract along the axial direction of the first hole or the second hole, and the adjusting assembly also includes an elastic element, which is disposed inside the panel and provides a pre-tightening force to the connecting post extending out of the panel.

[0020] Furthermore, the connecting post has an annular flange on its outside, the panel has a through groove, the connecting post passes through the through groove, the side wall of the through groove has a first step, the elastic element is placed in the through groove and sleeved on the outside of the connecting post, one end of the elastic element abuts against the annular flange, and the other end abuts against the first step.

[0021] Furthermore, the adjustment assembly also includes a cover plate, which is fixed to the end of the connecting post away from the base plate and abuts against the surface of the panel.

[0022] Furthermore, the locking member is movably disposed on the bottom of the outer side of the window sash, the locking seat is fixedly disposed on the bottom of the inner side of the window frame, and the adjusting assembly further includes a slider, which is movably disposed on the outer side of the window sash and connected to the transmission assembly. The locking member has a groove on the side facing the window sash, the groove extends along the moving direction of the adjusting assembly, the slider is placed in the groove and can move within the groove, the locking member is in the initial position when the slider is located at the end of the groove near the bottom of the window frame, and the locking member is in the second position when the slider is located at the end of the groove away from the bottom of the window frame.

[0023] Furthermore, the locking element is movably disposed on the bottom edge of the window sash, the lock seat is disposed on the bottom edge of the window frame, and the adjustment assembly further includes:

[0024] A slider is movably disposed on the outer side of the window sash and connected to the transmission assembly;

[0025] A movable component is movably disposed on the outer side of the window sash. The movable component has a sliding groove on the side facing the window sash. The sliding groove extends along the moving direction of the adjusting assembly. The slider is placed in the sliding groove and can move within the sliding groove.

[0026] An angle actuator is located at the corner of the window sash and is connected to the moving part and the locking part respectively. When the slider is located at the end of the slide groove near the bottom of the window frame, the locking part is in the initial position. When the slider is located at the end of the slide groove away from the bottom of the window frame, the locking part is in the second position.

[0027] Furthermore, the slider has a plurality of first teeth on the side opposite to the window sash, and a plurality of second teeth are laid on the bottom of the slide groove. The first teeth and the second teeth mesh. The adjustment assembly also includes a connector. A strip-shaped through groove is opened at the bottom of the slide groove. The connector passes through the strip-shaped through groove and the slider in sequence and is detachably connected to the slider to lock the movement of the slider in the slide groove.

[0028] Furthermore, the locking member includes a locking part. In the casement position, when the locking member is in the initial position, the locking part is located outside the first limiting part; when the locking member is in the second position, the locking part is located on the side of the first limiting part away from the casement direction of the window sash so that the first limiting part blocks the casement of the window sash; when the locking member is in the initial position or the second position, when the transmission assembly switches from the casement position to the under-hung position, the transmission assembly drives the adjustment assembly to move the locking part to the side of the first limiting part away from the casement direction of the window sash and moves along that side.

[0029] Furthermore, when the locking element is located at the bottom of the outer side of the window sash, the locking element is a pin, and the locking part is located on the side of the pin facing the window frame. When the transmission assembly switches from the open position to the overhang position, the pin is used to insert into the slot of the window frame.

[0030] The present invention also provides a casement window with an inward tilt, comprising:

[0031] window frame;

[0032] The window sash is movably fixed to the window frame;

[0033] A transmission assembly is disposed on the window sash; and

[0034] In the aforementioned limiting structure, the lock seat is disposed on the window frame, the adjusting component is disposed on the window sash and connected to the transmission component, and the locking member is disposed on the window sash, connected to the adjusting component, and corresponds to the lock seat.

[0035] The beneficial effects achieved by this invention are as follows: by setting a locking element on the window sash and a lock seat on the window frame, the lock seat has a first limiting part that can cooperate with the locking element. When the first limiting part cooperates with the locking element, the opening of the window sash can be restricted. Based on this, an adjustment component connected to the locking element is set on the window sash. The adjustment component is connected to the transmission component, which can drive the adjustment component and the locking element to a preset position. This can effectively utilize the transmission component on the existing door and window structure to drive the locking element, thereby simplifying the structure and saving production costs. By adjusting the position of the locking element through the adjustment component, when the locking element is in the initial position, when the transmission component drives the adjustment component and the locking element to the preset position, the locking element separates from the first limiting part, and the locking element does not restrict the opening of the window sash, so the window sash can be opened. When the locking element is in the second position, when the transmission component drives the adjustment component and the locking element to the preset position, the locking element cooperates with the first limiting part, and the locking element restricts the opening of the window sash, so the window sash cannot be opened, thereby achieving the purpose of locking or unlocking the window sash's opening function. Attached Figure Description

[0036] Figure 1 This is a schematic diagram of a casement window structure provided by the present invention;

[0037] Figure 2 This is a structural diagram of a first embodiment of a limiting structure provided by the present invention;

[0038] Figure 3 yes Figure 2 Enlarged view of point A in the middle;

[0039] Figure 4 yes Figure 2 Enlarged view of point B in the middle;

[0040] Figure 5 This is a schematic diagram of the limiting structure provided by the present invention in the casement state without restricting the opening of the window sash;

[0041] Figure 6 This is a schematic diagram illustrating the state of the limiting structure provided by the present invention, which restricts the opening of a window sash in the casement state.

[0042] Figure 7 This is a schematic diagram of the limiting structure provided by the present invention in a suspended state;

[0043] Figure 8 This is a schematic diagram of a second embodiment of a limiting structure provided by the present invention;

[0044] Figure 9 These are partial cross-sectional views of the cooperation between the panel and the base plate in the first and second embodiments of the limiting structure provided by the present invention;

[0045] Figure 10 These are schematic diagrams of the panel structure in the first and second embodiments of the limiting structure provided by the present invention;

[0046] Figure 11 This is a schematic diagram of a third embodiment of a limiting structure provided by the present invention;

[0047] Figure 12 This is a schematic diagram of the fourth embodiment of the limiting structure provided by the present invention, and a schematic diagram of the state in which the window sash is not restricted from opening in the casement state;

[0048] Figure 13 This is a schematic diagram of the fourth embodiment of the limiting structure provided by the present invention, showing the state of restricting the opening of the window sash in the casement state;

[0049] Figure 14 This is a schematic diagram of the locking element in a third embodiment of a limiting structure provided by the present invention.

[0050] Explanation of icon numbers:

[0051] 1. Lock base; 11. First limiting part; 2. Adjustment component; 21. Base plate; 211. First hole; 212. Second hole; 213. Third protrusion; 22. Panel; 22a. Body part; 22a1. First protrusion; 22b. Extension rod; 22b1. First connecting hole; 221. Through groove; 2211. First step; 2212. Second step; 23. Connecting post; 231. Annular flange; 24. Angle actuator; 25. Elastic element; 26. Cover plate; 27. Slider; 271. First tooth; 272. Second connecting hole; 28. Moving part; 2a. Slide groove; 2a1. Second tooth; 2a2. Strip through groove; 2b. Connecting part; 3. Locking part; 31. Locking part; 32. Second protrusion; 10. Limiting structure; 20. Window frame; 201. Slot; 30. Window sash; 40. Transmission component. Detailed Implementation

[0052] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0053] See Figures 1-4This invention provides a limiting structure 10 for a casement window with a bottom-hung design. The casement window with a bottom-hung design includes a window sash 30, a window frame 20, and a transmission assembly 40. The transmission assembly 40 includes a casement position, a locked position, and a bottom-hung position. The transmission assembly 40 is used to switch the window sash 30 into the casement state, the locked state, or the bottom-hung state. The limiting structure 10 includes a lock seat 1, an adjustment assembly 2, and a locking member 3. The lock seat 1 is disposed on the window frame 20 and has a first limiting part 11. The adjustment assembly 2 is movably disposed on the side of the window sash 30 and connected to the transmission assembly. The locking member 3 is movably disposed on the window sash 30 and connected to the adjustment assembly 2. The locking member 3 has an initial position and a second position in the moving direction of the adjustment assembly 2. The adjustment assembly 2 is used to adjust the position change of the locking member 3 between the initial position and the second position. When the transmission assembly 40 is in the casement position, the transmission assembly 40 drives the adjustment assembly 2 and the locking member 3 to the preset position. When the locking member 3 is in the initial position, the locking member 3 separates from the first limiting part 11 (see [reference]). Figure 5 The window sash 30 can be opened; when the locking member 3 is in the second position, the locking member 3 cooperates with the first limiting part 11 to prevent the window sash 30 from opening (see...). Figure 6 ).

[0054] By setting a locking element 3 on the window sash 30 and a lock seat 1 on the window frame 20, the lock seat 1 is provided with a first limiting part 11 that can cooperate with the locking element 3. When the first limiting part 11 cooperates with the locking element 3, the opening of the window sash 30 can be restricted. Based on this, an adjusting component 2 connected to the locking element 3 is set on the window sash 30. The adjusting component 2 is connected to the transmission component 40, which can drive the adjusting component 2 and the locking element 3 to move to a preset position. This can effectively utilize the transmission component on the existing door and window structure to drive the locking element 3, thereby simplifying the structure and saving production costs. The locking element 3 can be adjusted by adjusting the adjusting component 2. The position of component 3 is such that when the locking component 3 is in the initial position, when the transmission component 40 drives the adjustment component 2 and the locking component 3 to move to the preset position, the locking component 3 separates from the first limiting part 11, and the locking component 3 does not restrict the opening of the window sash 30, so the window sash 30 can be opened. When the locking component 3 is in the second position, when the transmission component 40 drives the adjustment component 2 and the locking component 3 to move to the preset position, the locking component 3 cooperates with the first limiting part 11, and the locking component 3 restricts the opening of the window sash 30, so the window sash 30 cannot be opened, thereby achieving the purpose of locking or unlocking the opening function of the window sash 30.

[0055] Working principle: When there is no need to lock the window sash 30 when it is open, the adjustment component 2 is operated to keep the locking member 3 in the initial position when the window sash 30 is in the down-hanging state. The window sash 30 in the down-hanging state is closed and the transmission component 40 is in the open position to drive the window sash 30 to change to the openable state. At the same time, the transmission component 40 drives the adjustment component 2 and the locking member 3 to the preset position. At this time, the locking member 3 in the initial position is still separated from the first limiting part 11. The first limiting part 11 cannot restrict the window sash 30, and the window sash 30 can be opened normally.

[0056] When it is necessary to lock the window sash 30 when it is open, the adjustment component 2 is operated while the window sash 30 is in the down-hanging state to switch the locking member 3 from the initial position to the second position, close the window sash 30 in the down-hanging state and put the transmission component 40 in the open position to drive the window sash 30 to convert to the openable state. At the same time, the transmission component 40 drives the adjustment component 2 and the locking member 3 to the preset position. At this time, the locking member 3 in the second position cooperates with the first limiting part 11. When the window sash 30 is open, the first limiting part 11 blocks the locking member 3 (i.e. the locking part 31 below) so that the window sash 30 cannot be opened.

[0057] When it is necessary to unlock the window sash 30 when it is open, repeat the locking operation. When the window sash 30 is in the hanging position, operate the adjustment component 2 to make the locking component 3 in the initial position, close the window sash 30 in the hanging position and make the transmission component 40 in the open position, so that the window sash 30 can be opened, thus completing the unlocking operation of the window sash 30 when it is open.

[0058] The limiting structure 10 provided in this embodiment of the invention can restrict the window sash 30 when it is in the open state, so that the window sash 30 cannot be opened, thereby avoiding the safety hazard of children accidentally opening the window sash 30 and falling out of the window; it effectively utilizes the transmission structure on the existing door and window structure to drive the adjustment component 2, which can simplify the structure and save production costs.

[0059] Specifically, the transmission assembly 40 includes a transmission part and a control part. The transmission part is disposed around the window sash 30, including one side, bottom, and top edge of the window sash 30. The transmission part includes a transmission component (not shown in the figure). The adjustment assembly 2 is disposed on the side of the window sash 30 and connected to the transmission component. The control part can control the movement of the transmission component. In this embodiment, the control part can be a handle. The handle controls the transmission part to move the transmission component. When the transmission assembly 40 is in the open position, the locked position, and the down-hung position, it can correspondingly control the window sash 30 to be in the openable state, the locked state, and the down-hung state.

[0060] It should be noted that the transmission component 40 is an existing structure on the existing door and window structure, and will not be described in detail here.

[0061] See Figure 7 Furthermore, the locking element 3 is located at the bottom of the window sash 30, and the locking seat 1 is located at the bottom of the window frame 20. When the transmission component 40 switches from the open position to the suspended position, the locking element 3 is in the initial position or the second position. The transmission component 40 drives the adjustment component 2 and the locking element 3 to leave the preset position and make the locking element 3 cooperate with the first limiting part 11 to lock the bottom edge of the window sash 30 and the window frame 20. Thus, during the process of the transmission component 40 switching from the casement position to the bottom-hung position, that is, during the process of the window sash 30 changing from the casement state to the bottom-hung state, regardless of whether the locking member 3 is in the initial position or the second position, the transmission component 40 drives the adjustment component 2 and the locking member 3 to leave the preset position, so that the locking member 3 can cooperate with the first limiting part 11. The cooperation between the first limiting part 11 and the locking member 3 can lock the bottom edge of the window sash 30 and the bottom edge of the window frame 20. This design can limit the casement opening of the window sash 30 without affecting the opening of the bottom-hung window. It can be applied not only to the scenario of manually opening the bottom-hung window, but also to the scenario of electrically opening the bottom-hung window. When applied to the scenario of electrically opening the bottom-hung window, it can prevent the window sash 30 from opening out, thereby ensuring that the bottom-hung window can be opened smoothly electrically.

[0062] See Figures 5-8 Specifically, the locking member 3 includes a locking part 31. In the casement position, when the locking member 3 is in the initial position, the locking part 31 is located outside the first limiting part 11. When the locking member 3 is in the second position, the locking part 31 is located on the side of the first limiting part 11 away from the casement direction of the window sash 30 so that the first limiting part 11 blocks the casement of the window sash 30 from opening. When the transmission assembly 40 switches from the casement position to the under-hung position, the transmission assembly 40 drives the adjustment assembly 2 to move the locking part 31 to the side of the first limiting part 11 away from the casement direction of the window sash 30 and moves along that side. Thus, by changing the position of the locking member 3 relative to the first limiting part 11, even if the locking member 3 is located outside the first limiting part 11, on the side of the first limiting part 11 away from the opening direction of the window sash 30, or on the side of the first limiting part 11 in the opening direction of the window sash 30 and moves along that side, it is possible to lock or unlock the window sash 30 when it is open, or to prevent the window sash 30 from opening outwards when it is tilted down, thereby affecting the opening of the tilted window.

[0063] In this embodiment, the lock base 1 can be located at the bottom side of the window frame 20 or at the bottom edge of the window frame 20. Correspondingly, the locking member is located at the bottom side of the window sash 30 or at the bottom edge of the window sash 30. The first limiting part 11 is a long strip structure that extends along the moving direction of the adjusting assembly 2. When the transmission assembly 40 is in the open position and the locking member 3 is in the initial position, the transmission assembly 40 drives the adjusting assembly 2 and the locking member 3 to the preset position. At this time, the locking part 31 is located outside the first limiting part 11. When the locking member... 3. In the second position, the transmission assembly 40 drives the adjustment assembly 2 and the locking member 3 to the preset position. At this time, the locking part 31 is located on the side of the first limiting part 11 away from the opening direction of the window sash 30. The first limiting part 11 blocks the window sash 30 from opening. When the transmission assembly 40 switches from the opening position to the hanging position, the transmission assembly 40 drives the adjustment assembly 2 to move so that the locking part 31 moves to the side of the first limiting part 11 away from the opening direction of the window sash 30 and continues to move along that side so that the bottom of the window sash 30 and the window frame 20 are locked.

[0064] Example 1

[0065] See Figures 2-4Specifically, the locking member 3 is movably disposed at the bottom of the outer side of the window sash 30, that is, the locking member 3 can be slidably disposed in the groove on the outer side of the window sash 30. The lock seat 1 is fixedly disposed at the bottom of the inner side of the window frame 20. In this way, when the locking member 3 (i.e. the locking part 31 mentioned above) cooperates with the first limiting part 11 of the lock seat 1, it can not only realize the function of limiting the opening of the window sash 30, but also lock the bottom edge of the window sash 30 and the window frame 20 to prevent the window sash 30 from opening out during the downward suspension process, thereby ensuring the smooth opening of the downward suspension of the window sash 30. The adjustment assembly 2 also includes a base plate 21 and a panel 22. The base plate 21 is movably disposed on the outer side of the window sash 30 and above the locking member 3 to facilitate adjustment of the position of the panel 22 on the base plate 21. Specifically, the base plate 21 is slidably disposed in the side groove of the window sash 30. The base plate 21 is connected to the transmission assembly 40 so that the transmission assembly 40 can drive the base plate 21 to move. The base plate 21 is provided with a first hole 211 and a second hole 212 at intervals along the moving direction of the adjustment assembly 2. The panel 22 is movably disposed on the outer side of the window sash 30 and above the locking member 3. That is, the panel 22 is also slidably disposed in the groove on the outer side of the window sash 30. The panel 22 is connected to the locking member 3. The panel 22 is provided with a connecting post 23 that can cooperate with the first hole 211 or the second hole 212. When the connecting post 23 cooperates with the first hole 211, the locking member 3 is in the initial position. When the connecting post 23 cooperates with the second hole 212, the locking member 3 is in the second position. Thus, the connecting post 23 cooperates with the first hole 211 or the second hole 212, which can not only realize the installation of the panel 22 on the base plate 21, but also realize the switching of the locking member 3 between the initial position and the second position by switching the cooperation of the connecting post 23 between the first hole 211 and the second hole 212. The telescopic connecting post 23 allows the connecting post 23 to move away from the base plate 21 to disengage from the first hole 211 or the second hole 212, so that the panel 22 can move on the base plate 21.

[0066] Example 2

[0067] See Figure 8 Specifically, the locking element 3 is movably disposed on the bottom edge of the window sash 30, that is, the locking element 3 can be slidably disposed in the groove on the bottom edge of the window sash 30, and the lock seat 1 is fixedly disposed on the bottom edge of the window frame 20. Thus, when the locking element 3 engages with the first limiting part 11 of the lock seat 1, it not only restricts the window sash 30 from opening, but also locks the bottom edges of the window sash 30 and the window frame 20 to allow the window sash 30 to open downwards. See also Figure 2 , Figure 3 , Figure 8The adjustment assembly 2 also includes a base plate 21, a panel 22, and an angle actuator 24. The base plate 21 is movably disposed on the outer side of the window sash 30 and located above the locking member 3 to facilitate adjustment of the position of the panel 22 on the base plate 21. The base plate 21 is connected to the transmission assembly 40 so that the transmission assembly 40 can drive the base plate 21 to move. The base plate 21 is provided with a first hole 211 and a second hole 212 at intervals along the moving direction of the adjustment assembly 2. The panel 22 is movably disposed on the outer side of the window sash 30, that is, the panel 22 can be slidably disposed in the groove at the bottom of the side of the window sash 30. The panel 22 is provided with a connecting post 23 that can cooperate with the first hole 211 or the second hole 212. The angle actuator 24 is disposed at the corner of the window sash 30 and is connected to the panel 22 and the locking member 3 respectively. When the connecting post 23 cooperates with the first hole 211, the locking member 3 is in the initial position. When the connecting post 23 cooperates with the second hole 212, the locking member 3 is in the second position. By setting the locking element 3 on the bottom edge of the window sash 30 and connecting the locking element 3 to the panel 22 through the angle transmission device 24, the locking element 3 can be switched between the initial position and the second position when adjusting the mating position between the panel 22 and the bottom plate 21.

[0068] See Figures 2-4 In the above embodiments one and two, the panel 22 can be an integral structure or a split structure. In this embodiment, the panel 22 adopts a split structure to avoid the panel 22 being too long and inconvenient for installation. Specifically, the panel 22 includes a main body 22a and an extension rod 22b connected to the main body 22a. The extension rod is located inside the main body 22a, and the other end of the extension rod 22b is connected to the locking member 3. Further, the two ends of the extension rod 22b can be respectively provided with first connecting holes 22b1. The main body 22a is provided with a first protrusion 22a1 that can cooperate with the first connecting hole 22b1, and the locking member 3 is provided with a second protrusion 32 that can cooperate with the first connecting hole 22b1. The first protrusion 22a1 and the second protrusion 32 respectively cooperate with the first connecting holes 22b1 at both ends of the extension rod 22b to achieve connection.

[0069] See Figure 3 , Figure 9Based on the above embodiment one or embodiment two, the connecting post 23 can extend and retract along the axial direction of the first hole 211 or the second hole 212. The adjusting assembly 2 also includes an elastic element 25, which is disposed inside the panel 22 and provides a pre-tightening force to the connecting post 23 extending out of the panel 22. The elastic element 25 can ensure that the connecting post 23 always maintains its engagement with the first hole 211 or the second hole 212 when it is normally extended out of the panel 22. When it is necessary to move the panel 22 to drive the locking member 3 to change position, the locking member 3 is moved away from the base plate 21 to overcome the pre-tightening force of the elastic element 25 and retract into the panel 22, thereby separating the connecting post 23 from the first hole 211 or the second hole 212, and thus the panel 22 can be moved.

[0070] See Figures 9-10 Furthermore, the connecting post 23 is provided with an annular flange 231 on the outside, the panel 22 is provided with a through groove 221, the connecting post 23 passes through the through groove 221, the side wall of the through groove 221 is provided with a first step 2211, the elastic member 25 is placed in the through groove 221 and sleeved on the outside of the connecting post 23, one end of the elastic member 25 abuts against the annular flange 231, and the other end abuts against the first step 2211 to realize the installation of the connecting post 23 on the panel 22.

[0071] See Figures 9-10 Furthermore, the side wall of the through groove 221 is also provided with a second step 2212. The second step 2212 is located on the side of the first step 2211 facing the bottom plate 21. When the connecting column 23 moves away from the bottom plate 21, the annular flange 231 can abut against the first step 2211 to limit the movement of the connecting column 23.

[0072] See Figure 3 , Figure 9 , Figure 10 Furthermore, the adjusting assembly 2 also includes a cover plate 26, which is fixed to the end of the connecting post 23 away from the base plate 21 and abuts against the surface of the panel 22 to facilitate pulling the connecting post 23 to move. Furthermore, a third protrusion 213 can be formed extending outward from the surface of the base plate 21 around the through groove 221, and the cover plate 26 can abut against the third protrusion 213, thus creating a gap between the cover plate 26 and the base plate 21, making it easier to pull the cover plate 26 to move the connecting post 23.

[0073] Example 3

[0074] See Figure 11Specifically, the locking member 3 is movably disposed on the bottom of the outer side of the window sash 30, and the lock seat 1 is fixedly disposed on the bottom of the inner side of the window frame 20. Thus, when the locking member 3 (i.e. the locking part 31 mentioned above) cooperates with the first limiting part 11 of the lock seat 1, it can not only realize the function of limiting the window sash 30 to open, but also lock the bottom edge of the window sash 30 and the window frame 20 to realize the downward opening of the window sash 30. The adjusting assembly 2 also includes a slider 27, which is movably disposed on the outer side of the window sash 30 and connected to the transmission assembly 40. Specifically, the slider 27 can slide within a groove on the side of the window sash 30 and then connect to the transmission assembly 40. The locking member 3 has a groove 2a on the side facing the window sash 30, which extends along the moving direction of the adjusting assembly 2. The slider 27 is placed in the groove 2a and can move within it. When the slider 27 is located at the end of the groove 2a near the bottom of the window frame 20, the locking member 3 moves upward relative to the bottom edge of the window frame 20, and the locking member 3 is in the initial position. When the slider 27 is located at the end of the groove 2a away from the bottom of the window frame 20, the locking member 3 moves downward relative to the bottom edge of the window frame 20, and the locking member 3 is in the second position. Thus, by moving the locking member 3 to adjust the position of the slider 27 within the groove 2a, the locking member 3 can be adjusted between the initial position and the second position.

[0075] Example 4

[0076] See Figures 12-13Specifically, the locking member 3 is movably disposed on the bottom edge of the window sash 30, and the locking seat 1 is disposed on the bottom edge of the window frame 20. Thus, when the locking member 3 (i.e., the aforementioned locking part 31) cooperates with the first limiting part 11 of the locking seat 1, it not only restricts the window sash 30 from opening but also locks the bottom edges of the window sash 30 and the window frame 20 to allow the window sash 30 to open downwards. Referring to the figure, the adjustment assembly 2 also includes a slider 27, a moving member 28, and an angle transmission mechanism 24. The slider 27 is movably disposed on the outer side of the window sash 30 and connected to the transmission assembly 40. Specifically, the slider 27 is slidably disposed in a groove on the side of the window sash 30 and then connected to the transmission assembly 40. The moving member 28 is movably disposed on the outer side of the window sash 30 and is also slidably disposed in a groove on the side of the window sash 30. The moving member 28 has a groove 2a on the side facing the window sash 30, and the groove 2a extends along the adjustment assembly... Extending in the direction of movement 2, slider 27 is placed in the slide groove 2a and can move within the slide groove 2a. Angle actuator 24 is located at the corner of window sash 30 and is connected to moving member 28 and locking member 3 respectively. When slider 27 is located at the end of slide groove 2a near the bottom of window frame 20, moving member 28 moves upward relative to the bottom edge of window frame 20, and locking member 3 is in the initial position. When slider 27 is located at the end of slide groove 2a away from the bottom of window frame 20, moving member 28 moves downward relative to the bottom edge of window frame 20, and locking member 3 is in the second position. Thus, by moving moving member 28 to adjust the position of slider 27 in slide groove 2a, and moving member 28 then drives locking member 3 to move via angle actuator 24, locking member 3 can be adjusted between the initial position and the second position.

[0077] See Figure 11 , Figure 12 , Figure 14 Based on Embodiment 3 or Embodiment 4, further, a plurality of first teeth 271 are provided on the side of the slider 27 away from the window sash 30, and a plurality of second teeth 2a1 are provided at the bottom of the slide groove 2a. The first teeth 271 and the second teeth 2a1 mesh. The adjusting assembly 2 also includes a connecting member 2b. A strip-shaped through groove 2a2 is provided at the bottom of the slide groove 2a. The connecting member 2b passes through the strip-shaped through groove 2a2 and the slider 27 in sequence and is detachably connected to the slider 27 to lock the movement of the slider 27 in the slide groove 2a. The first teeth 271 and the second teeth 2a1 are provided so that when the connecting member 2b passes through the slider 27 and the slide groove 2a is connected and fixed to the slider 27, the first teeth 271 and the second teeth 2a1 can mesh to limit the slider 27 in the slide groove 2a. The strip-shaped through groove 2a2 is provided in the slide groove 2a so that the connecting member 2b can be easily connected and fixed to the slider 27 at different positions in the slide groove 2a.

[0078] See Figure 11 , Figure 12Specifically, the slider 27 is provided with a second connecting hole 272. The connecting part 2b can be, but is not limited to, a screw. The screw is threadedly connected to the second connecting hole 272. When it is necessary to adjust the position of the locking part 3, the screw is loosened to separate the first tooth 271 and the second tooth 2a1, so that the moving part 28 or the locking part 3 can be moved, thereby driving the locking part 3 to move. After adjusting the position, the screw is tightened so that the first tooth 271 and the second tooth 2a1 can mesh, and the slider 27 can be fixed in the slide groove 2a.

[0079] See Figure 7 Based on the above embodiments, when the locking member 3 is located at the bottom of the outer side of the window sash 30, the locking member 3 is a pin, and the locking part 31 is located on the side of the pin facing the window frame 20. When the transmission assembly 40 switches from the casement position to the overhang position, the pin is inserted into the slot 201 of the window frame 20. This increases the locking strength between the window sash 30 and the bottom edge of the window frame 20, and avoids excessive force between the locking part 31 and the first limiting part 11 on the side, which could cause deformation or damage.

[0080] It should be noted that in the above embodiments, the adjustment component 2 is located on the outer side of the window sash 30 or the bottom edge of the window sash 30, and the lock seat 1 is located on the inner side of the window frame 20 or the bottom edge of the window frame 20, so that the limiting structure 10 can be hidden inside the window structure, ensuring the integrity and aesthetics of the external structure of the window structure.

[0081] See Figure 1 This invention also provides a casement window with a bottom-hung design, including a window frame 20, a window sash 30, a transmission assembly, and the aforementioned limiting structure 10. The window sash 30 is movably fixed to the window frame 20, the transmission assembly is disposed on the window sash 30, the locking seat 1 of the limiting structure 10 is disposed on the window frame 20, the adjusting assembly 2 is disposed on the window sash 30 and connected to the transmission assembly 40, and the locking member 3 is disposed on the window sash 30, connected to the adjusting assembly 2, and corresponding to the locking seat 1.

[0082] The casement window provided in this embodiment of the invention can restrict the window sash 30 when it is in the casement state, so that the window sash 30 cannot be opened, thereby avoiding the safety hazard of children accidentally opening the window sash 30 and falling out of the window; it effectively utilizes the transmission structure on the existing door and window structure to drive the adjustment component 2, which can simplify the structure and save production costs.

[0083] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A limiting structure for a casement window with a bottom-hung design, the casement window with a bottom-hung design comprising a window sash, a window frame, and a transmission assembly, the transmission assembly comprising a casement position, a locked position, and a bottom-hung position, characterized in that, The limiting structure includes: A lock base is provided on the window frame, and the lock base is provided with a first limiting part; An adjustment component is movably disposed on the side of the window sash and connected to the transmission component; A locking element is movably disposed on the window sash and connected to the adjustment assembly. The locking element has an initial position and a second position in the direction of movement of the adjustment assembly. The adjustment assembly is used to adjust the position change of the locking element between the initial position and the second position. When the transmission component is in the open position, the transmission component drives the adjustment component and the locking component to a preset position. When the locking component is in the initial position, the locking component is separated from the first limiting part, and the window sash can be opened. When the locking component is in the second position, the locking component cooperates with the first limiting part to restrict the window sash from opening.

2. The limiting structure as described in claim 1, characterized in that, The locking element is located at the bottom of the window sash, and the lock seat is located at the bottom of the window frame. When the transmission assembly switches from the open position to the overhang position, the locking element is in the initial position or the second position. The transmission assembly drives the adjustment assembly and the locking element to leave the preset position and make the locking element cooperate with the first limiting part to lock the bottom edge of the window sash and the window frame.

3. The limiting structure as described in claim 2, characterized in that, The locking element is movably disposed at the bottom of the outer side of the window sash, and the locking seat is fixedly disposed at the bottom of the inner side of the window frame. The adjustment assembly further includes: A base plate is movably disposed on the outer side of the window sash and above the locking member. The base plate is connected to the transmission assembly. The base plate is provided with a first hole and a second hole at intervals along the moving direction of the adjusting assembly. A panel is movably disposed on the outer side of the window sash and above the locking member. The panel is connected to the locking member, and a connecting post is telescopically provided on the panel that can cooperate with the first hole or the second hole. When the connecting post engages with the first hole, the locking element is in the initial position; when the connecting post engages with the second hole, the locking element is in the second position.

4. The limiting structure as described in claim 2, characterized in that, The locking element is movably disposed on the bottom edge of the window sash, the lock seat is fixedly disposed on the bottom edge of the window frame, and the adjustment assembly further includes: A base plate is movably disposed on the outer side of the window sash and above the locking member. The base plate is connected to the transmission assembly. The base plate is provided with a first hole and a second hole at intervals along the moving direction of the adjusting assembly. A panel is movably disposed on the outer side of the window sash, and the panel is provided with a connecting post that can be engaged with the first hole or the second hole. An angle actuator is located at the corner of the window sash and is connected to the panel and the locking component respectively; When the connecting post engages with the first hole, the locking element is in the initial position; when the connecting post engages with the second hole, the locking element is in the second position.

5. The limiting structure as described in claim 3 or 4, characterized in that, The connecting post can extend and retract along the axial direction of the first hole or the second hole. The adjusting assembly also includes an elastic element, which is disposed inside the panel and provides a pre-tightening force to the connecting post extending out of the panel.

6. The limiting structure as described in claim 5, characterized in that, The connecting post has an annular flange on its outside, the panel has a through groove, the connecting post passes through the through groove, the side wall of the through groove has a first step, the elastic element is placed in the through groove and sleeved on the outside of the connecting post, one end of the elastic element abuts against the annular flange, and the other end abuts against the first step.

7. The limiting structure as described in claim 6, characterized in that, The adjustment assembly also includes a cover plate, which is fixed to the end of the connecting post away from the base plate and abuts against the surface of the panel.

8. The limiting structure as described in claim 2, characterized in that, The locking member is movably disposed on the bottom of the outer side of the window sash, and the locking seat is fixedly disposed on the bottom of the inner side of the window frame. The adjusting assembly also includes a slider, which is movably disposed on the outer side of the window sash and connected to the transmission assembly. The locking member has a groove on the side facing the window sash, and the groove extends along the moving direction of the adjusting assembly. The slider is placed in the groove and can move within the groove. When the slider is located at the end of the groove near the bottom of the window frame, the locking member is in the initial position. When the slider is located at the end of the groove away from the bottom of the window frame, the locking member is in the second position.

9. The limiting structure as described in claim 2, characterized in that, The locking element is movably disposed on the bottom edge of the window sash, the lock seat is disposed on the bottom edge of the window frame, and the adjustment assembly further includes: A slider is movably disposed on the outer side of the window sash and connected to the transmission assembly; A movable component is movably disposed on the outer side of the window sash. The movable component has a sliding groove on the side facing the window sash. The sliding groove extends along the moving direction of the adjusting assembly. The slider is placed in the sliding groove and can move within the sliding groove. An angle actuator is located at the corner of the window sash and is connected to the moving part and the locking part respectively. When the slider is located at the end of the slide groove near the bottom of the window frame, the locking part is in the initial position. When the slider is located at the end of the slide groove away from the bottom of the window frame, the locking part is in the second position.

10. The limiting structure as described in claim 8 or 9, characterized in that, The slider has a plurality of first teeth on the side opposite to the window sash, and the bottom of the slide groove has a plurality of second teeth. The first teeth and the second teeth mesh. The adjustment assembly also includes a connector. The bottom of the slide groove has a strip-shaped through groove. The connector passes through the strip-shaped through groove and the slider in sequence and is detachably connected to the slider to lock the movement of the slider in the slide groove.

11. The limiting structure as described in any one of claims 2-4 and 8-9, characterized in that, The locking member includes a locking part. In the casement position, when the locking member is in the initial position, the locking part is located outside the first limiting part; when the locking member is in the second position, the locking part is located on the side of the first limiting part away from the casement direction of the window sash so that the first limiting part blocks the casement of the window sash. When the locking member is in the initial position or the second position, and the transmission assembly switches from the casement position to the under-hung position, the transmission assembly drives the adjustment assembly to move the locking part to the side of the first limiting part away from the casement direction of the window sash and moves along that side.

12. The limiting structure as described in claim 11, characterized in that, When the locking element is located at the bottom of the outer side of the window sash, the locking element is a pin, and the locking part is located on the side of the pin facing the window frame. When the transmission assembly switches from the casement position to the overhang position, the pin is used to insert into the slot of the window frame.

13. A casement window with a bottom-hung design, characterized in that, include: window frame; The window sash is movably fixed to the window frame; The transmission assembly is located on the window sash; as well as The limiting structure as described in any one of claims 1-12, wherein the lock seat is disposed on the window frame, the adjusting component is disposed on the window sash and connected to the transmission component, and the locking member is disposed on the window sash, connected to the adjusting component, and corresponds to the lock seat.

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