Locking mechanism of door and window hinge
By designing a sleeve with frame, limit frame and limit plate in the locking mechanism of door and window hinges, the problem of lock plate and cover separation is solved, and the effect of reducing noise and extending service life is achieved.
Patent Information
- Application Number
- CN202421695834.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-17
- Publication Date
- 2025-06-13
- Estimated Expiration
- 2034-07-17
AI Technical Summary
In the locking mechanism of the existing window hinge, the anti-wear case is prone to disengage from the locking plate, resulting in increased noise and shortened service life.
A locking mechanism for door and window hinges is designed, including a lock seat, lock plate and a sleeve. The sleeve is closely connected to the lock plate through the structure of the frame, limit frame and limit plate to ensure that it is not easy to fall off during sliding.
The sides and bottom of the lock plate are protected by the frame of the sleeve, which reduces friction between the lock plate and the groove, reduces noise, and ensures a stable connection between the sleeve and the lock plate through the design of the limit frame and the limit plate, and avoids disengagement problems.
Smart Images
Figure CN222976648U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of hinges, in particular to a locking mechanism for a door and window hinge. Background Art
[0002] A hinge is a frequently used accessory on windows. It can support the window sash and limit the opening angle of the window sash. In a casement window, the function of the hinge is to enable the window leaf to rotate relative to the window frame.
[0003] Existing window hinges generally have a locking mechanism to restrict the movement of the hinge, thereby locking the window leaf and the window frame. The locking mechanism is generally divided into two parts, usually a lock base and a lock piece. The lock base is connected to the lock box on the window leaf handle, and the lock piece slides back and forth in the profile groove of the window frame along with the free end of the hinge. By turning the handle, the lock base and the lock piece can be locked or separated at a preset position.
[0004] Both the lock piece and the profile groove are usually made of metal, and significant wear and noise often occur during their reciprocating friction. Therefore, manufacturers generally set a replaceable plastic casing on the lock piece to reduce friction. However, the structures of most existing such casings are set rather arbitrarily and are very likely to fall off the lock piece during sliding. Summary of the Utility Model
[0005] In view of this, the utility model provides a locking mechanism for a door and window hinge to solve the problem that the casing for anti-wear in the existing locking mechanism is likely to become detached from the lock piece.
[0006] To achieve one or part or all of the above purposes or other purposes, the utility model provides a locking mechanism for a door and window hinge, including: a lock base, a lock piece and a casing. The lock piece is movably connected to the lock base, and the casing is detachably connected to the lock piece;
[0007] The lock piece is in the shape of a flat strip, and the middle part of the lock piece arches upward;
[0008] The casing includes a frame, a limiting frame and two limiting pieces. The limiting frame is arranged in the middle and lower part of the frame, and the two limiting pieces are respectively arranged at the upper parts of both ends of the frame, and both limiting pieces extend towards the middle of the frame;
[0009] The casing is sleeved on the lock piece. Among them, the end walls at both ends of the lock piece respectively abut against both ends of the frame, the top walls at both ends of the lock piece respectively abut against the two limiting pieces, and the bottom wall at one end of the lock piece abuts against the limiting frame.
[0010] Preferably, both the limiting piece and the limiting frame are parallel to the lock piece.
[0011] Preferably, the limiting frame is in an I-shape, one side of the limiting frame is connected to the middle of the frame, and the other side is close to the end of the locking plate and abuts against the bottom wall of the locking plate.
[0012] Preferably, the width of the limiting piece is less than or equal to the width of two opposite outer side walls of the frame.
[0013] Preferably, the widths of both ends of the locking piece are adapted to the widths of two opposite inner side walls of the frame.
[0014] Preferably, the thickness of the locking piece is smaller than the height of the frame.
[0015] Preferably, a locking point is arranged on the top wall in the middle of the locking piece, and a locking groove is arranged on the locking seat, and the locking point can be engaged with the locking groove.
[0016] Preferably, a connecting piece is provided on one end of the locking piece extending outwardly, a connecting column is provided on the connecting piece, and the connecting piece and the connecting column are used to be connected to the free end of the hinge.
[0017] Preferably, a notch for avoiding the connecting piece is provided at one end of the frame, and the shape of the notch is adapted to the cross-sectional shape of the connecting piece.
[0018] Preferably, the width of the notch is smaller than the width of the limiting piece.
[0019] Implementing the embodiments of the present utility model will have the following beneficial effects:
[0020] After adopting the locking mechanism of the above-mentioned door and window hinge, the locking plate is sleeved with the provided sleeve, and the side and bottom of the locking plate are protected by the frame of the sleeve, so that the locking plate will not directly rub against the inner wall of the groove during the sliding process, which can reduce noise. The locking plate is limited by the provided limit frame and two limit plates, and the frame is firmly sleeved on the locking plate, which is not easy to fall off. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0022] in:
[0023] Figure 1 This is an exploded schematic diagram of the overall structure of the locking mechanism of the door and window hinge proposed by the utility model;
[0024] Figure 2 Schematic structural diagram of the lock seat of the locking mechanism of the door and window hinge proposed by the present utility model;
[0025] Figure 3 Schematic installation diagram of the lock piece and the housing of the locking mechanism of the door and window hinge proposed by the present utility model;
[0026] Figure 4 Schematic exploded view of the lock piece and the housing of the locking mechanism of the door and window hinge proposed by the present utility model.
[0027] Reference numerals: 10, lock seat; 11, lock groove; 20, lock piece; 21, locking point; 22, connecting piece; 23, connecting column; 30, housing; 31, frame; 311, notch; 32, limiting frame; 33, limiting piece. Detailed implementation manners
[0028] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which the present utility model belongs; the terms used in the description of the present application in the specification are only for the purpose of describing specific embodiments, and are not intended to limit the present utility model; the terms "including" and "having" and any variations thereof in the specification and claims of the present utility model and the above-mentioned drawings are intended to cover non-exclusive inclusion. The terms "first", "second", etc. in the specification and claims of the present utility model or the above-mentioned drawings are used to distinguish different objects, rather than to describe a specific order.
[0029] Reference to "embodiment" herein means that a specific feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the present utility model. The phrase appears in various places in the specification and does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art will explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments.
[0030] In order to enable those skilled in the art of the present technology to better understand the solution of the present utility model, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings.
[0031] As Figures 1-4 shown, it is an embodiment provided by the present utility model.
[0032] An embodiment of the present utility model provides a locking mechanism for a door and window hinge, including: a lock base 10, a lock piece 20, and a sleeve 30. The lock base 10 is used to connect with a lock box on a door and window handle, and the lock piece 20 is used to connect with the free end of the hinge and slide back and forth in a groove of a window frame along with the free end of the hinge. By rotating the handle, the lock piece 20 can be controlled to be movably connected with the lock base 10, so that the lock base 10 and the lock piece 20 are locked or separated at a preset position; the lock piece 20 is detachably connected with the sleeve 30. The sleeve 30 is generally made of plastic. The function of the sleeve 30 is to avoid or reduce the friction between the lock piece 20 and the groove of the window frame, reduce the noise generated by the friction, reduce the mutual wear between the lock piece 20 and the groove, and extend the service life of the lock piece 20 and the groove. Specifically, the lock piece 20 is in the shape of a flat long strip, the middle part of the lock piece 20 arches upward, and the width of both ends of the lock piece 20 is greater than the width of the middle part, making the lock piece 20 similar to an I-shaped or "I" shape; the sleeve 30 includes a frame 31, a limiting frame 32, and two limiting pieces 33. The frame 31 is in the shape of a square frame, the limiting frame 32 is arranged in the middle and lower part of the frame 31, and the two limiting pieces 33 are respectively arranged at the upper parts of both ends of the frame 31, and both limiting pieces 33 extend towards the middle of the frame 31; the sleeve 30 is sleeved on the lock piece 20. Among them, the end walls of both ends of the lock piece 20 respectively abut against the inner side walls of both ends of the frame 31, and the width of both ends of the lock piece 20 is adapted to the width of the two opposite inner side walls of the frame 31, so that the lock piece 20 and the frame 31 are tightly connected and fixed in the horizontal direction. The top walls of both ends of the lock piece 20 respectively abut against the bottom walls of the two limiting pieces 33, so that the lock piece 20 will not break away from the frame 31 upward. The bottom wall of one end of the lock piece 20 abuts against the limiting frame 32, so that the lock piece 20 will not break away from the frame 31 downward, thereby fixing the sleeve 30 on the lock piece 20, forming a stable protection for the lock piece 20, and it is not easy for the sleeve 30 and the lock piece 20 to separate from each other.
[0033] Further, both the limiting piece 33 and the limiting frame 32 are parallel to the lock piece 20, so that when the limiting piece 33 and the limiting frame 32 respectively abut against the surface of the lock piece 20, the contact area is larger, the wrapping area for the lock piece 20 is larger, and it is more difficult to fall off.
[0034] Specifically, the limiting frame 32 is in the shape of an I, one side of the limiting frame 32 is connected to the middle of the frame 31 to fix both sides of the frame 31, improving the anti-deformation strength of the frame 31. The other side of the limiting frame 32 is close to the end of the lock piece 20 and abuts against the bottom wall of the lock piece 20, and can clamp the end of the lock piece 20 between the limiting piece 33 and the limiting frame 32, forming a connection state similar to plugging, and improving the connection strength between the sleeve 30 and the lock piece 20.
[0035] Specifically, the width of the limit piece 33 is less than or equal to the width of two opposite outer side walls of the frame 31, that is, the two side edges of the limit piece 33 do not extend beyond the side surface of the frame 31, so that the inner wall of the window frame groove does not contact the limit piece 33 but only contacts the frame 31.
[0036] Further, the thickness of the lock piece 20 is less than the height of the frame 31, so that the frame 31 can better wrap the lock piece 20 and reduce the occurrence of contact and friction between the lock piece 20 and the inner wall of the window frame groove.
[0037] Specifically, a lock point 21 is provided on the top wall in the middle of the lock piece 20, a lock groove 11 is provided on the lock seat 10, the setting direction of the lock groove 11 is the same as the moving direction of the lock piece 20, and the lock point 21 can be engaged or separated from the lock groove 11 as the lock piece 20 moves. In addition, one end of the lock piece 20 extends outward to be provided with a connecting piece 22, and a connecting column 23 is provided on the connecting piece 22. The connecting piece 22 and the connecting column 23 are used to connect with the free end of the hinge, so that the lock piece 20 can slide back and forth in the window frame groove as the hinge moves.
[0038] Further, a notch 311 for avoiding the connecting piece 22 is provided at one end of the frame 31. The shape of the notch 311 is adapted to the cross-sectional shape of the connecting piece 22. The connecting piece 22 can pass through the notch 311 to the outside of the frame 31, and the width of the notch 311 is less than the width of the limit piece 33, so that the end of the lock piece 20 can still abut against the inner side wall of the frame 31, reducing the influence of the notch 311 on the strength of the frame 31.
[0039] Obviously, the embodiments described above are only a part of the embodiments of the present invention, rather than all embodiments. The preferred embodiments of the present invention are shown in the drawings, but do not limit the patent scope of the present invention. The present invention can be implemented in many different forms. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosed content of the present invention more thorough and comprehensive. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing specific embodiments, or perform equivalent replacements on some of the technical features. Any equivalent structure made by using the specification and drawings of the present invention and directly or indirectly applied to other related technical fields shall be within the scope of the patent protection of the present invention by the same token.
Claims
1. A locking mechanism for door and window hinges, characterized in that: include: A lock seat (10), a lock plate (20) and a cover (30), wherein the lock plate (20) is movably connected to the lock seat (10), and the cover (30) is detachably connected to the lock plate (20); The locking piece (20) is in the shape of a flat long strip, and the middle part of the locking piece (20) is arched upwards; The casing (30) comprises a frame (31), a limiting frame (32) and two limiting pieces (33); the limiting frame (32) is arranged at the middle and lower part of the frame (31); the two limiting pieces (33) are respectively arranged at the upper parts of both ends of the frame (31); and the two limiting pieces (33) both extend toward the middle part of the frame (31); The sleeve (30) is sleeved on the locking plate (20), wherein the end walls at both ends of the locking plate (20) are respectively in contact with the two ends of the frame (31), the top walls at both ends of the locking plate (20) are respectively in contact with the two limiting plates (33), and the bottom wall at one end of the locking plate (20) is in contact with the limiting frame (32).
2. The locking mechanism for door and window hinges according to claim 1, characterized in that: The limiting plate (33) and the limiting frame (32) are both parallel to the locking plate (20).
3. The locking mechanism for door and window hinges according to claim 1, characterized in that: The limiting frame (32) is in an I-shape, one side of the limiting frame (32) is connected to the middle of the frame (31), and the other side is close to the end of the locking plate (20) and abuts against the bottom wall of the locking plate (20).
4. The locking mechanism for door and window hinges according to claim 1, characterized in that: The width of the limiting piece (33) is less than or equal to the width of two opposite outer side walls of the frame (31).
5. The locking mechanism for door and window hinges according to claim 1, characterized in that: The widths of the two ends of the locking piece (20) are adapted to the widths of the two opposite inner side walls of the frame (31).
6. The locking mechanism for door and window hinges according to claim 1, characterized in that: The thickness of the locking piece (20) is smaller than the height of the frame (31).
7. The locking mechanism for door and window hinges according to claim 1, characterized in that: A locking point (21) is arranged on the top wall of the middle part of the locking plate (20), and a locking groove (11) is arranged on the locking seat (10), and the locking point (21) can be engaged with the locking groove (11).
8. The locking mechanism for door and window hinges according to claim 1, characterized in that: A connecting piece (22) is provided at one end of the locking piece (20) extending outwards, a connecting column (23) is provided on the connecting piece (22), and the connecting piece (22) and the connecting column (23) are used to be connected to the free end of the hinge.
9. The locking mechanism for door and window hinges according to claim 8, characterized in that: A notch (311) for avoiding the connecting piece (22) is provided at one end of the frame (31), and the shape of the notch (311) is adapted to the cross-sectional shape of the connecting piece (22).
10. The locking mechanism for door and window hinges according to claim 9, characterized in that: The width of the notch (311) is smaller than the width of the limiting piece (33).