Multi-connecting-rod hinge for window

Abstract

The utility model discloses a multi-connecting-rod hinge for a window. The multi-connecting-rod hinge comprises a windowsill bottom plate, a window fixing plate and a connecting rod assembly. Bending parts are arranged on the two sides of the windowsill bottom plate to form receding spaces which are embedded in the windowsill mounting grooves, and limiting parts and fixing holes are formed in the two ends of the windowsill bottom plate; the connecting rod assembly comprises a first connecting lever, a second connecting lever and a connecting piece, the first connecting lever and the second connecting lever are rotationally connected in a stacked mode through a pin shaft and are in specific rotating connection with the windowsill bottom plate, the connecting piece and the window fixing plate respectively, and the first connecting lever is in sliding fit with a long groove of the connecting piece. Under the condition that the total thickness of the hinge is not increased, the thickness of a windowsill bottom plate is converted into the bearing thickness of the crank arm, and the bearing capacity of the crank arm is improved; parts such as a nut and a pin shaft are reasonably accommodated in an avoiding space formed by the bending part, so that the space layout is optimized; meanwhile, the strength of a windowsill bottom plate is enhanced, the overall structural strength and durability of the hinge are improved, and the problems of bearing and space utilization of traditional hinges are effectively solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to window hinge technical field, concretely is a kind of multi-link hinge for window. BACKGROUND

[0002] In the field of building doors and windows, as the core component connecting window and sill, the structural design of window hinge directly concerns the use performance and service life of window. With the continuous improvement of the functional requirements of building doors and windows, higher requirements are put forward for the load-bearing capacity and spatial adaptability of window hinge. However, the existing window hinge has obvious defects in structural design: in order to ensure that the window can stably bear load during use, the thickness of the hinge component is usually increased to improve the strength, but in the case of fixed installation space and limited overall thickness, the designer often has to sacrifice the thickness of the key components such as sill bottom plate, resulting in weakened strength of these components and difficulty in meeting the long-term stable load-bearing requirements.

[0003] At the same time, in the structure of traditional window hinge, the protrusions of the nut, pin shaft and other components at the bottom of the sill bottom plate invisibly increase the actual installation thickness of the hinge. Under the hard condition that the overall thickness cannot be increased, the design space of other components is further compressed, which greatly reduces the overall strength and load-bearing performance of the hinge. In addition, due to insufficient structural strength, the existing window hinge has poor durability during frequent opening and closing, which poses a safety hazard. Therefore, there is an urgent need for a window hinge structure that can effectively improve the load-bearing capacity without increasing the overall thickness and reasonably optimize the spatial layout to meet the market demand for high-quality door and window hardware. SUMMARY

[0004] In view of the deficiencies in the background art, the utility model provides a multi-link hinge for window.

[0005] The technical scheme adopted by the utility model is as follows: a multi-link hinge for window, comprising:

[0006] The sill bottom plate has a bending portion bent to one side of the sill on both sides, and the bending portion and the bending portion form a space for positioning. The sill bottom plate is embedded into the mounting groove on the sill, and the two ends of the sill bottom plate are provided with a limiting portion one and a limiting portion two which are attached to the surface of the sill. The limiting portion one and the end of the sill bottom plate away from the limiting portion one are provided with a fixing hole one for fixing the sill.

[0007] The window fixing plate is used for fixing the window.

[0008] A connecting rod assembly comprises a crank arm one, a crank arm two and a connecting plate, the crank arm one and the crank arm two are connected by a pin shaft, one end of the crank arm one is connected with the upper end of the window sill bottom plate, the other end is connected with the long slot on the connecting plate, one end of the crank arm two is connected with the lower end of the window sill bottom plate, the other end is connected with the upper end of the window fixed plate, the end of the connecting plate away from the crank arm one is connected with the middle part of the window fixed plate.

[0009] Further, the thickness of the crank arm two is greater than that of the crank arm one.

[0010] Further, the thickness of the crank arm two is 3-6mm, and the thickness of the crank arm one is 2-4mm.

[0011] Further, the thickness of the crank arm two is 3-6mm, and the thickness of the crank arm one is 2-4mm.

[0012] Further, the upper end of the window sill bottom plate is provided with a side fixing part, and the side fixing part is provided with a fixing hole two for fixing the window sill side wall.

[0013] Further, the connecting plate and the crank arm two are arranged on the same side of the crank arm one, and the crank arm two is provided with a gap on one side of the connecting plate.

[0014] Further, the surface of the window sill bottom plate is lower than or equal to the surface of the window sill.

[0015] The beneficial effects of the present application are:

[0016] 1. Improve the bearing capacity: the unique design of the patent, without increasing the overall thickness, the window sill bottom plate is installed into the installation slot of the window sill, the thickness of the window sill bottom plate is increased to the thickness of the crank arm one and the crank arm two, the bearing capacity of the crank arm one and the crank arm two is effectively enhanced, the window can be stably supported for a long time, and higher use demand is met.

[0017] 2. Optimize the space layout: the bending part is arranged on both sides of the window sill bottom plate, the space at the bottom of the bending part is used as a gap space, which is specially used for accommodating nuts, protruding pin shafts and other components, which greatly improves the space utilization. Not only the nuts, pin shafts and other components occupy additional space, but also the whole hinge structure is more compact and reasonable, and higher efficient layout is realized in limited installation space.

[0018] 3. Enhance the structural strength: the bending part on both sides of the window sill bottom plate not only provides a gap space, but also further improves the strength of the window sill bottom plate. This design enhances the structural strength of the hinge as a whole, so that the hinge is more durable in the process of frequent opening and closing, and effectively prolongs the service life of the window hinge.

[0019] In addition to the objects, features and advantages described above, the present application has other objects, features and advantages. The present application will be described in further detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0020] Fig. 1 It is a structural schematic diagram of the present application.

[0021] Fig. 2 It is a schematic diagram of the installation of the present application and the windowsill.

[0022] Fig. 3 It is a side view of the windowsill bottom plate.

[0023] Figs. 1-3 In the figure: 1, windowsill bottom plate; 2, bending part; 3, space for giving way; 4, windowsill; 5, installation slot; 6, limiting part one; 7, limiting part two; 8, fixing hole one; 9, window fixing plate; 10, crank arm one; 11, crank arm two; 12, connecting piece; 13, side fixing part; 14, windowsill side wall; 15, fixing hole two; 16, space for giving way; 17, long slot. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0025] It should be noted that if the present application embodiments involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative positional relationship, movement condition, etc. between the components in a certain specific posture (as shown in the drawings). If the specific posture changes, the directional indications also change accordingly.

[0026] The present application provides a multi-link hinge for windows.

[0027] In the present embodiment, with reference to Figs. 1-3 , the multi-link hinge for windows comprises:

[0028] The windowsill bottom plate 1 has bending parts 2 on both sides that are bent towards the side of the windowsill, the bending parts 2 form a space for giving way 3 between the bending parts 2, the windowsill bottom plate is embedded into an installation slot 5 on the windowsill 4, the windowsill bottom plate is provided with a limiting part one 6 and a limiting part two 7 that are attached to the surface of the windowsill on both ends, the limiting part one 6 and the end of the windowsill bottom plate away from the limiting part one are provided with a fixing hole one 8 for fixing the windowsill;

[0029] a window fixing plate 9 for being fixed with the window;

[0030] a connecting rod assembly comprising a crank arm one 10, a crank arm two 11 and a connecting plate 12, the crank arm one and the crank arm two are connected by a pin shaft, one end of the crank arm one is rotatably connected with the upper end of the window sill bottom plate, the other end is slidably connected with a long slot 17 on the connecting plate, one end of the crank arm two is rotatably connected with the lower end of the window sill bottom plate, the other end is rotatably connected with the upper end of the window fixing plate, and the end of the connecting plate away from the crank arm one is rotatably connected with the middle part of the window fixing plate.

[0031] In the above technical solution, the bending parts on both sides of the window sill bottom plate form a space for accommodating the nut and the pin shaft, and the window sill bottom plate is embedded in the window sill mounting groove and is fixed and connected by the limiting part and the fixing hole. The window fixing plate is fixed with the window, the crank arm one and the crank arm two in the connecting rod assembly are connected by a pin shaft, and are rotatably connected with the window sill bottom plate, the connecting plate and the window fixing plate, respectively, to form a multi-connecting rod linkage structure. The thickness and strength contradiction of the traditional hinge caused by the space occupied by the protruding parts is effectively solved, and the space utilization is improved. The multi-connecting rod structure realizes smooth opening and closing of the window, and enhances the overall bearing capacity and structural stability of the hinge.

[0032] Specifically, the thickness of the crank arm two is greater than that of the crank arm one, the thickness of the crank arm two is 3-6mm, and the thickness of the crank arm one is 2-4mm. The thickness of the sheet metal of the window sill bottom plate is 2-3mm, and the height of the window sill bottom plate is 4-6mm.

[0033] Reasonable thickness of the parts ensures the strength requirement of the hinge, ensures the reliable connection of the hinge and the window sill, improves the anti-deformation ability of the overall structure, and prolongs the service life.

[0034] Specifically, the upper end of the window sill bottom plate is provided with a side fixing part 13, and the side fixing part 13 is provided with a fixing hole two 15 for being fixed with the window side wall 14.

[0035] In this embodiment, the side fixing part and the fixing hole two are arranged at the upper end of the window sill bottom plate, the window sill bottom plate is connected with the window side wall by increasing the fixing points, the window sill bottom plate is constrained from multiple directions, the fixing effect is enhanced, and the entire hinge structure is more stable under stress.

[0036] Specifically, the connecting plate and the crank arm two are arranged on the same side of the crank arm one, and the crank arm two is provided with a space-providing notch 16 on one side of the connecting plate.

[0037] In the embodiment, the connecting piece and the two-layered arm are arranged on the same side of the first arm, and the second arm is provided with a gap, so that the connecting piece can be folded into the gap 16 when the hinge is folded.

[0038] Specifically, the surface of the window sill bottom plate is lower than or equal to the surface of the window sill.

[0039] In the embodiment, the surface of the window sill bottom plate is lower than or equal to the surface of the window sill, which can avoid the protrusion of the window sill bottom plate from affecting the overall appearance and use of the window sill, and can also make the surface of the window sill flat, prevent dust and sundries from accumulating, and ensure that the window closely adheres to the window sill when the window is closed, thereby improving the sealing performance.

[0040] Skilled persons should know that although the utility model has been described in the above specific embodiments, the utility model is not limited to the utility model, and any modification using the utility model will be included in the scope of protection of the patent.

Claims

1. A multi-link hinge for windows, characterized in that... include: The window sill base plate has two sides with bent portions that bend towards one side of the window sill, and a clearance space is formed between the bent portions. The window sill base plate is embedded into the mounting groove on the window sill. The two ends of the window sill base plate are provided with limiting part one and limiting part two that fit against the surface of the window sill. The limiting part one and the end of the window sill base plate away from the limiting part one are provided with fixing holes one for fixing the window sill. A window fixing plate, which is used to fix the window to the window; A linkage assembly includes a first crank arm, a second crank arm, and a connecting plate. The first and second crank arms are stacked and rotatably connected by a pin. One end of the first crank arm is rotatably connected to the upper end of the window sill base plate, and the other end is slidably connected to a long groove on the connecting plate. One end of the second crank arm is rotatably connected to the lower end of the window sill base plate, and the other end is rotatably connected to the upper end of the window fixing plate. The end of the connecting plate away from the first crank arm is rotatably connected to the middle of the window fixing plate.

2. The multi-link hinge for windows according to claim 1, characterized in that: The thickness of the second crank arm is greater than the thickness of the first crank arm.

3. The multi-link hinge for windows according to claim 1, characterized in that: The thickness of the second crank arm is 3-6mm, and the thickness of the first crank arm is 2-4mm.

4. The multi-link hinge for windows according to claim 1, characterized in that: The sheet metal thickness of the window sill base plate is 2-3mm, and the height of the window sill base plate is 4-6mm.

5. The multi-link hinge for windows according to claim 1, characterized in that: The upper end of the window sill base plate is provided with a side fixing part, and the side fixing part is provided with a fixing hole 2 for fixing to the side wall of the window sill.

6. The multi-link hinge for windows according to claim 1, characterized in that: The connecting piece and the second crank arm are both stacked on the same side of the first crank arm, and the second crank arm is provided with a clearance notch on one side of the connecting piece.

7. The multi-link hinge for windows according to claim 1, characterized in that: The surface of the bottom plate of the windowsill is set to be lower than or equal to the surface of the windowsill.

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