A safety hinge

Abstract

The present invention discloses a safety hinge, which relates to the technical field of hinges. The present invention includes a mounting base plate, a chute is provided on the upper surface of the mounting base plate, a cushion plate is mounted on the upper surface of the mounting base plate, the two ends of the upper surface of the cushion plate are respectively rotatably connected with a first connecting member and a second connecting member, tooth grooves are provided at one ends of the first connecting member and the second connecting member, and one ends of the first connecting member and the second connecting member are meshed and connected. Through the structural design, the device of the present invention drives the opening and closing by means of the tooth grooves of the first connecting member and the second connecting member, plays a buffering role, can avoid the instantaneous opening and closing damage to the window or the hinge caused by the wind pressure, can position the running track of the hinge, and the device has a running track different from that of a conventional hinge, has better stability, is more convenient to use, at the same time, the device is more convenient to install, does not require a top head to assist in entering the corner, and can avoid the accumulation of dust in the chute.

Description

Technical Field

[0001] The present invention belongs to the technical field of hinges, and particularly relates to a safety hinge. Background Art

[0002] A hinge, also known as a hinge joint, is a mechanical device used to connect two solids and allow relative rotation between them. A hinge can be composed of movable components or foldable materials, and is mainly used for doors, windows, and cabinets. However, existing hinges for doors and windows are prone to damage the windows or the hinges during instantaneous opening and closing caused by wind pressure. Summary of the Invention

[0003] The purpose of the present invention is to provide a safety hinge to solve the existing problems: existing hinges for doors and windows are prone to damage the windows or the hinges during instantaneous opening and closing caused by wind pressure.

[0004] To solve the above technical problems, the present invention is realized through the following technical solutions: A safety hinge includes a mounting base plate. A chute is provided on the upper surface of the mounting base plate. A cushion plate is mounted on the upper surface of the mounting base plate. The two ends of the upper surface of the cushion plate are respectively rotatably connected with a first connecting member and a second connecting member. Tooth grooves are provided at one ends of the first connecting member and the second connecting member. One ends of the first connecting member and the second connecting member are meshed and connected. The other end of the first connecting member is rotatably connected with a window mounting frame. The other end of the second connecting member is rotatably connected with a third connecting member. The other end of the third connecting member is rotatably connected with the middle part of the window mounting frame. The middle part of the second connecting member is also rotatably connected with a fourth connecting member. The other end of the fourth connecting member is rotatably connected with a sliding column. The sliding column is located in the chute, and the sliding column is slidably connected with the mounting base plate.

[0005] Further, a fixing plate is fixed at the bottom end of the sliding column. A dust-proof rear pull is also mounted on the upper surface of the mounting base plate. Two through holes are provided at one end of the dust-proof rear pull. The sliding column passes through one of the through holes, and one end of the dust-proof rear pull is located between the mounting base plate and the fourth connecting member. Fixing holes are provided on the surface of the fixing plate at positions corresponding to the through holes. The fixing plate and the dust-proof rear pull are fixed by fixing nails passing through the through holes and the fixing holes, and the middle end of the fixing nail is located in the chute.

[0006] Further, first gaskets are fixed at both ends of the bottom end of the mounting base plate. The first gaskets and the mounting base plate are fixed by bolts.

[0007] Further, a second gasket is fixed on one side surface of one end of the window mounting frame. The second gasket and the window mounting frame are fixed by bolts.

[0008] Further, the first connecting member is rotatably connected to the window mounting frame by a first connecting pin, and the third connecting member is rotatably connected to the window mounting frame by a second connecting pin.

[0009] Further, a heightening pad is provided between the first connecting member and the window mounting frame, and the heightening pad is fixed on the upper surface of the first connecting member. The heightening pad is annular in shape and is located outside the first connecting pin.

[0010] Further, the second connecting member is rotatably connected to the third connecting member by a third connecting pin, and the second connecting member is rotatably connected to the fourth connecting member by a fourth connecting pin.

[0011] Further, the backing plate is rotatably connected to the first connecting member by a first rotating member, and the backing plate and the second connecting member are rotatably connected by a second rotating member. The first rotating member and the second rotating member are fixed on the upper surface of the mounting base plate.

[0012] Further, a plurality of mounting holes for fixing are formed on the upper surface of the mounting base plate.

[0013] The present invention has the following beneficial effects:

[0014] 1. Through the structural design of the present invention, the device drives the opening and closing by the tooth grooves of the first connecting member and the second connecting member, playing a buffering role, which can avoid the instantaneous opening and closing damage to the window or hinge caused by wind pressure, and can locate the running track of the hinge.

[0015] 2. Through the structural design of the present invention, the device has a running track different from that of a conventional hinge, has better stability, and is more convenient to use.

[0016] 3. Through the structural design of the present invention, the device is more convenient to install, does not require a top head to assist in entering the corner, and can avoid the accumulation of dust in the chute. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for describing the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present invention, and those of ordinary skill in the art can also obtain other drawings based on these drawings without creative efforts.

[0018] Figure 1 It is a schematic structural diagram of the present invention after expansion;

[0019] Figure 2 It is an exploded view of the present invention after expansion;

[0020] Figure 3Schematic diagram of the structure of the present invention after closing;

[0021] Figure 4 Exploded view of the present invention after closing;

[0022] Figure 5 Schematic diagram of the connection between the first connecting member and the second connecting member of the present invention.

[0023] In the attached drawings, the list of components represented by each reference numeral is as follows:

[0024] 1. Installation base plate; 2. Pad; 3. First connecting member; 4. Second connecting member; 5. Third connecting member; 6. Fourth connecting member; 7. Window mounting frame; 8. Fixed plate; 9. Dust-proof rear pull; 10. First gasket; 11. Second gasket; 12. Heightening pad; 13. First connecting pin; 14. Second connecting pin; 15. Third connecting pin; 16. Fourth connecting pin; 17. Sliding column; 18. Fixed nail; 19. First rotating member; 20. Second rotating member. Detailed implementation manners

[0025] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present invention.

[0026] Please refer to Figures 1-5 As shown, the present invention is a safety hinge, including an installation base plate 1. At both ends of the bottom end of the installation base plate 1, first gaskets 10 are fixed. The first gaskets 10 are fixed to the installation base plate 1 by bolts. A chute is provided on the upper surface of the installation base plate 1, and a plurality of installation holes for fixing are also provided on the upper surface of the installation base plate 1. Through the installation holes, it is convenient to install the installation base plate 1 on the window frame. A pad 2 is installed on the upper surface of the installation base plate 1. At both ends of the upper surface of the pad 2, a first connecting member 3 and a second connecting member 4 are respectively rotatably connected. The pad 2 and the first connecting member 3 are rotatably connected through a first rotating member 19, and the pad 2 and the second connecting member 4 are rotatably connected through a second rotating member 20. The first rotating member 19 and the second rotating member 20 are fixed on the upper surface of the installation base plate 1. The first rotating member 19 and the second rotating member 20 can play a limiting role to prevent the first connecting member 3 and the second connecting member 4 from shifting when rotating, causing the first connecting member 3 and the second connecting member 4 to fall off. The pad 2 can prevent the first connecting member 3 and the second connecting member 4 from generating frictional noise when rotating;

[0027] Furthermore, tooth grooves are provided at one end of both the first connecting member 3 and the second connecting member 4. One end of the first connecting member 3 and the second connecting member 4 are meshed and connected. When the second connecting member 4 undergoes an angular change, under the action of meshing, it can drive the first connecting member 3 to rotate simultaneously, and the first connecting member 3 and the second connecting member 4 rotate in opposite directions with the same rotation angle, which can keep the included angle between the mounting base plate 1 and the first connecting member 3 and the included angle between the mounting base plate 1 and the second connecting member 4 always the same, thus limiting the movement trajectory of the doors and windows;

[0028] Furthermore, the other end of the first connecting member 3 is rotatably connected to a window mounting frame 7. The first connecting member 3 and the window mounting frame 7 are rotatably connected through a first connecting pin 13. A heightening pad 12 is provided between the first connecting member 3 and the window mounting frame 7, and the heightening pad 12 is fixed on the upper surface of the first connecting member 3. The heightening pad 12 is annular in shape and is located outside the first connecting pin 13. The heightening pad 12 can play a role in reducing the frictional sound between the first connecting member 3 and the window mounting frame 7. A second gasket 11 is fixed on one side surface of one end of the window mounting frame 7. The second gasket 11 and the window mounting frame 7 are fixed by bolts. The other end of the second connecting member 4 is rotatably connected to a third connecting member 5. The second connecting member 4 and the third connecting member 5 are rotatably connected through a third connecting pin 15. The other end of the third connecting member 5 is rotatably connected to the middle part of the window mounting frame 7. The third connecting member 5 and the window mounting frame 7 are rotatably connected through a second connecting pin 14. The first connecting member 3, the second connecting member 4, the third connecting member 5, and the window mounting frame 7 are connected to form a rhombus. When the window is pushed, it can drive the included angle between the window mounting frame 7 and the third connecting member 5 to shrink, and at the same time, the included angles between the window mounting frame 7 and the first connecting member 3 and between the third connecting member 5 and the second connecting member 4 expand. The first connecting member 3 and the second connecting member 4 rotate simultaneously to reduce the included angle between them, which can open the window mounting frame 7. When the window is instantaneously opened and closed due to wind pressure, it can play a certain buffering role under the meshing action of the tooth grooves at one end of the first connecting member 3 and the second connecting member 4, and can avoid damage to the window or hinge caused by instantaneous opening and closing;

[0029] Furthermore, a fourth connecting member 6 is also rotatably connected to the middle part of the second connecting member 4. The second connecting member 4 and the fourth connecting member 6 are rotatably connected through a fourth connecting pin 16. The other end of the fourth connecting member 6 is rotatably connected to a sliding column 17. The sliding column 17 is located in a sliding groove, and the sliding column 17 is slidably connected to the mounting base plate 1. When the second connecting member 4 undergoes an angular change, it can drive the fourth connecting member 6 to move. And because the sliding column 17 installed at one end of the fourth connecting member 6 is slidably connected to the sliding groove of the mounting base plate 1, it can play a role in limiting the trajectory of the second connecting member 4.

[0030] Further, a fixing plate 8 is fixed to the bottom end of the sliding column 17. A dust-proof rear pull 9 is also installed on the upper surface of the mounting base plate 1. Two through holes are formed at one end of the dust-proof rear pull 9. The sliding column 17 passes through one of the through holes. When the sliding column 17 moves, it can push the dust-proof rear pull 9 to move simultaneously. One end of the dust-proof rear pull 9 is located between the mounting base plate 1 and the fourth connecting member 6. The part of the dust-proof rear pull 9 between the mounting base plate 1 and the fourth connecting member 6 can reduce frictional noise. A fixing hole is formed on the surface of the fixing plate 8 at a position corresponding to the through hole. The fixing plate 8 and the dust-proof rear pull 9 are fixed by a fixing nail 18 passing through the through hole and the fixing hole. The middle end of the fixing nail 18 is located in the chute. The dust-proof rear pull 9 is used to prevent dust from accumulating in the chute of the mounting base plate 1, avoiding obstruction when the hinge opens and closes.

[0031] A specific application of this embodiment is as follows: When opening the window, by pushing the window mounting bracket 7, the included angle between the window mounting bracket 7 and the third connecting member 5 is reduced. Since the first connecting member 3, the second connecting member 4, the third connecting member 5 and the window mounting bracket 7 form a rhombus, the included angle between the first connecting member 3 and the second connecting member 4 opposite to the included angle between the window mounting bracket 7 and the third connecting member 5 is also reduced simultaneously. And due to the meshing of the first connecting member 3 and the second connecting member 4, the included angle between the mounting base plate 1 and the first connecting member 3 and the included angle between the mounting base plate 1 and the second connecting member 4 always remain the same, which can locate the movement trajectory of the device. At the same time, the included angle between the first connecting member 3 and the window mounting bracket 7 and the included angle between the second connecting member 4 and the third connecting member 5 are enlarged. The fourth connecting member 6 is pulled simultaneously, so that the included angle between the fourth connecting member 6 and the third connecting member 5 is reduced. One end of the fourth connecting member 6 moves along the chute at the same time, and the window is opened. The dust-proof rear pull 9 installed at the chute can be used to prevent dust from entering the chute, avoiding the difficulty of opening and closing the window caused by dust accumulation in the chute. When the window is instantaneously opened and closed due to wind pressure, it can play a certain buffering role under the meshing of the tooth grooves at one ends of the first connecting member 3 and the second connecting member 4, and can avoid damage to the window or hinge caused by instantaneous opening and closing.

[0032] In the description of this specification, the descriptions referring to terms such as "one embodiment", "example", "specific example", etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0033] The preferred embodiments of the present invention disclosed above are only used to assist in the description of the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific embodiments described. Obviously, many modifications and variations can be made according to the content of this specification. These embodiments are selected and specifically described in this specification to better explain the principles and practical applications of the present invention, so that those skilled in the art can well understand and utilize the present invention. The present invention is only limited by the claims and their full scope and equivalents.

Claims

1. A safety hinge, characterized in that: It includes a mounting base plate (1). A chute is formed on the upper surface of the mounting base plate (1). A cushion plate (2) is mounted on the upper surface of the mounting base plate (1). The two ends of the upper surface of the cushion plate (2) are respectively rotatably connected with a first connecting member (3) and a second connecting member (4). Tooth grooves are provided at one ends of the first connecting member (3) and the second connecting member (4). One ends of the first connecting member (3) and the second connecting member (4) are meshed and connected. The other end of the first connecting member (3) is rotatably connected with a window mounting frame (7). The other end of the second connecting member (4) is rotatably connected with a third connecting member (5). The other end of the third connecting member (5) is rotatably connected with the middle part of the window mounting frame (7). The middle part of the second connecting member (4) is also rotatably connected with a fourth connecting member (6). The other end of the fourth connecting member (6) is rotatably connected with a sliding column (17). The sliding column (17) is located in the chute, and the sliding column (17) is slidably connected with the mounting base plate (1). A fixing plate (8) is fixed at the bottom end of the sliding column (17). A dust-proof back pull (9) is also mounted on the upper surface of the mounting base plate (1). Two through holes are formed at one end of the dust-proof back pull (9). The sliding column (17) penetrates through one of the through holes, and one end of the dust-proof back pull (9) is located between the mounting base plate (1) and the fourth connecting member (6). Fixing holes are formed on the surface of the fixing plate (8) at positions corresponding to the through holes. The fixing plate (8) and the dust-proof back pull (9) are fixed by a fixing nail (18) penetrating through the through holes and the fixing holes, and the middle end of the fixing nail (18) is located in the chute. A heightening pad (12) is provided between the first connecting member (3) and the window mounting frame (7), and the heightening pad (12) is fixed on the upper surface of the first connecting member (3). The shape of the heightening pad (12) is annular and is located outside the first connecting pin (13). The cushion plate (2) and the first connecting member (3) are rotatably connected through a first rotating member (19). The cushion plate (2) and the second connecting member (4) are rotatably connected through a second rotating member (20). The first rotating member (19) and the second rotating member (20) are fixed on the upper surface of the mounting base plate (1).

2. The safety hinge according to claim 1, characterized in that: First gaskets (10) are fixed at both ends of the bottom end of the mounting base plate (1). The first gaskets (10) and the mounting base plate (1) are fixed by bolts.

3. The safety hinge according to claim 1, characterized in that: A second gasket (11) is fixed on one side surface of one end of the window mounting frame (7). The second gasket (11) and the window mounting frame (7) are fixed by bolts.

4. A safety hinge according to claim 1, characterized in that: The first connecting member (3) and the window mounting frame (7) are rotatably connected through a first connecting pin (13). The third connecting member (5) and the window mounting frame (7) are rotatably connected through a second connecting pin (14).

5. A safety hinge according to claim 1, characterized in that: The second connecting member (4) and the third connecting member (5) are rotatably connected through a third connecting pin (15). The second connecting member (4) and the fourth connecting member (6) are rotatably connected through a fourth connecting pin (16).

6. The safety hinge according to claim 1, wherein: A plurality of mounting holes for fixing are also formed on the upper surface of the mounting base plate (1).

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