Hinge for aluminum alloy doors and windows

Abstract

The utility model relates to the technical field of hinges, and discloses a hinge for aluminum alloy doors and windows, which comprises a hinge pin and two hinge plates rotating around the hinge pin, a plurality of bolt holes are formed in the side walls of the two hinge plates in a penetrating manner, screws are arranged in the bolt holes in a penetrating manner, the outward sides of the two hinge plates are connected with anti-falling plates, and the anti-falling plates are connected with the hinge pin. The two anti-disengaging plates cover the multiple bolt holes in the two hinge plates correspondingly, the sides, close to the hinge plates, of the two anti-disengaging plates are both connected with mounting assemblies, and the two mounting assemblies are connected with the two hinge plates correspondingly. According to the hinge for the aluminum alloy door and window, the anti-falling plates are installed on the outward sides of the two hinge plates, screws on the hinge plates can be blocked, the screws are prevented from falling off outwards due to vibration, and therefore the connection firmness between the hinge and the door and window and the connection firmness between the hinge and a door and window frame are improved, the door and window is prevented from falling off from the frame, and the use safety of the door and window is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of hinges, in particular to a hinge for aluminum alloy doors and windows. Background Art

[0002] Hinges for aluminum alloy doors and windows, also known as hinges, are important hardware accessories that connect door and window sashes and door and window frames so that doors and windows can be rotated and opened; choosing suitable hinges is crucial to ensure the normal use of doors and windows, extend their service life, and ensure smooth opening and closing and sealing.

[0003] For example, the patent with announcement number CN212154473U announces a hinge for doors and windows, including a left hinge and a right hinge, the right end of the left hinge is fixedly connected with a connecting block, the left end of the right hinge is provided with a groove, the connecting block is placed in the groove, the connecting block is limited in the groove by a rotating shaft, the left hinge and the right hinge are provided with fixing holes, the inner cavity bottom of the groove is provided with a first circular slide groove and a second circular slide groove, respectively, the radius of the first circular slide groove is smaller than the radius of the second circular slide groove. The left hinge and the right hinge are fixed to the door and window by passing a fixing nail through the fixing hole, so that the left hinge and the right hinge rotate when in use, and the support plate rotates on the ball bearing. Since the friction force of the ball bearing in the second circular slide groove is small, the friction force between the left hinge and the right hinge is further reduced, thereby effectively extending the service life of the left hinge and the right hinge.

[0004] However, the door and window hinges in the above technology still have the following problems:

[0005] When installing hinges, doors, windows and door and window frames, self-tapping screws are usually used for installation and fixation. For residents near railways, high-speed railways and expressways, high-speed railways, trains, cars, etc. will cause a certain degree of vibration during driving. Doors and windows are affected by this vibration for a long time, which will cause the self-tapping screws to gradually loosen, and then cause the doors and windows to fall off the door and window frames, posing a great safety hazard. Utility Model Content

[0006] In view of the deficiencies in the prior art, the utility model provides a hinge for aluminum alloy doors and windows, which can prevent the screws on the hinge from loosening after installation and improve the firmness of the door and window installation.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a hinge for aluminum alloy doors and windows, comprising a hinge pin and two hinge plates rotating around the hinge pin, the side walls of the two hinge plates are penetrated with a plurality of bolt holes, screws are passed through the plurality of bolt holes, the two hinge plates are connected to an anti-slip plate on one side facing outwards, the two anti-slip plates respectively cover the plurality of bolt holes on the two hinge plates, the two anti-slip plates are connected to an installation assembly on one side close to the hinge plate, and the two installation assemblies are respectively connected to the two hinge plates.

[0008] Furthermore, the installation component includes two symmetrically arranged insertion strips, which are respectively fixedly connected to the side of the anti-dropping plate close to the hinge pin and the side away from the hinge pin. Two slots are provided on the side of the hinge plate close to the anti-dropping plate. The two slots are respectively matched with two adjacent insertion strips, and both ends of the two slots are through-set. The two insertion strips are respectively slidably connected to the two slots.

[0009] Furthermore, the anti-slip plate is slidably connected to a side adjacent to the hinge plate.

[0010] Furthermore, a nut hole is provided on one side of the bolt hole close to the anti-drop plate, and the nut of the self-tapping screw is located in the nut hole.

[0011] Furthermore, a plurality of telescopic holes are provided on a side of the hinge plate close to the anti-drop plate, and telescopic parts are slidably connected in the plurality of telescopic holes. A positioning hole matching the plurality of telescopic parts is penetrated through the side of the anti-drop plate close to the hinge plate, and the plurality of telescopic parts are slidably connected to the plurality of positioning holes respectively. The plurality of telescopic holes are all located between two adjacent slots, and the plurality of telescopic holes are all located between the plurality of bolt holes.

[0012] Furthermore, the telescopic part includes a positioning block and two symmetrically arranged elastic sheets, one end of the two elastic sheets is fixedly connected to the side of the telescopic hole away from the anti-drop plate, the other ends of the two elastic sheets are fixedly connected to the positioning block, the positioning block is slidably connected to the inner wall of the telescopic hole, and the end of the positioning block away from the two elastic sheets is slidably connected to the adjacent positioning hole.

[0013] Furthermore, both sides of the positioning block close to the two ends of the slot are designed as arc surfaces.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] This type of hinge for aluminum alloy doors and windows can block the screws on the hinge plates by installing anti-drop plates on the outward side of the two hinge plates, preventing the screws from falling outward due to vibration, thereby improving the firmness of the connection between the hinges and the doors and windows and the door and window frames, preventing the doors and windows from falling out of the frames, and improving the safety of the use of doors and windows. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1This is a schematic diagram of the overall appearance connection structure of the utility model;

[0017] Figure 2 It is an exploded schematic diagram of the connection structure between the anti-slip plate and the hinge plate of the utility model;

[0018] Figure 3 This is an exploded schematic diagram of the connection structure between the screw and the hinge plate of the utility model;

[0019] Figure 4 Based on Figure 3 A schematic cross-sectional view of a hinge plate connection structure;

[0020] Figure 5 for Figure 4 Enlarged schematic diagram of the connection structure at point A in the middle.

[0021] In the figure: 1. hinge pin; 2. hinge plate; 3. bolt hole; 4. screw; 5. anti-slip plate; 6. insert strip; 7. slot; 8. nut hole; 9. telescopic hole; 10. positioning hole; 11. positioning block; 12. elastic sheet. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0023] See also Figure 1 - Figure 5 A hinge for aluminum alloy doors and windows, comprising a hinge pin 1 and two hinge plates 2 rotating around the hinge pin 1, the side walls of the two hinge plates 2 are penetrated with a plurality of bolt holes 3, the plurality of bolt holes 3 are penetrated with screws 4, the two hinge plates 2 are connected with anti-slip plates 5 on the outward side, the two anti-slip plates 5 respectively cover the plurality of bolt holes 3 on the two hinge plates 2, the two anti-slip plates 5 are connected with installation components on the side close to the hinge plates 2, and the two installation components are respectively connected to the two hinge plates 2.

[0024] like Figure 1 - Figure 5 As shown, the hinge for aluminum alloy doors and windows in the utility model is similar to the existing hinge structure for aluminum alloy doors and windows, such as the hinge for doors and windows disclosed in the patent with announcement number CN212154473U. The main improvement of the utility model is that it can prevent the screws 4 on the hinge from falling off, and improve the connection firmness between the door and window and the door and window frame. Figures 1 to 5As shown, when the hinge for aluminum alloy doors and windows in the utility model is in use, a screw 4 is passed through the bolt hole 3 to connect and fix the two hinge plates 2 on both sides of the hinge pin 1 to the edges of the door and window frame and the door and window respectively. After the multiple screws 4 are fixed, the anti-drop plate 5 is installed to the outer side of the hinge plate 2 through the mounting assembly, so that the multiple screws 4 on the hinge plate 2 are blocked on the inside. When the door and window frame and the door and window vibrate, causing the screw 4 to move outward and fall off, the nut of the screw 4 is against the anti-drop plate 5, thereby preventing the screw 4 from falling off, thereby improving the connection firmness between the two hinge plates 2 and the door and window and the door and window frame, making the use of the door and window safer.

[0025] like Figure 1 - Figure 5 As shown, the installation assembly includes two symmetrically arranged inserting strips 6, which are respectively fixedly connected to the side of the anti-dropping plate 5 close to the hinge pin 1 and the side away from the hinge pin 1. The hinge plate 2 has two slots 7 on the side close to the anti-dropping plate 5. The two slots 7 are respectively matched with the two adjacent inserting strips 6, and both ends of the two slots 7 are through-set, and the two inserting strips 6 are respectively slidably connected with the two slots 7. When installing the anti-dropping plate 5, the anti-dropping plate 5 can be installed on the hinge plate 2 by inserting the two inserting strips 6 into the two matching slots 7, so as to prevent the screws 4 from dropping out.

[0026] like Figure 1 As shown, the anti-drop plate 5 is slidably connected to one side adjacent to the hinge plate 2. By sliding between the anti-drop plate 5 and the hinge plate 2, the side of the anti-drop plate 5 is abutted against the hinge plate 2, so that the screw 4 is better pressed against the hinge plate 2, and the gap between the anti-drop plate 5 and the hinge plate 2 is reduced, so that the screw 4 is blocked more tightly, and the screw 4 is prevented from loosening, causing the door and window to shake in the door and window frame, making the use of the door and window more stable.

[0027] like Figure 2 - Figure 4 As shown, a nut hole 8 is provided on one side of the bolt hole 3 close to the anti-drop plate 5, and the nut of the self-tapping screw 4 is located in the nut hole 8. Through the design of the nut hole 8, when the screw 4 is used to install the hinge plate 2, the screw 4 is screwed inwards and the nut of the screw 4 is screwed into the nut hole 8, thereby preventing the protruding nut from obstructing the installation of the anti-drop plate 5.

[0028] like Figure 1 - Figure 5As shown, a plurality of telescopic holes 9 are provided on one side of the hinge plate 2 close to the anti-drop plate 5, and telescopic parts are slidably connected in the plurality of telescopic holes 9. A positioning hole 10 matching with the plurality of telescopic parts is provided through the side of the anti-drop plate 5 close to the hinge plate 2, and the plurality of telescopic parts are respectively slidably connected with the plurality of positioning holes 10. The plurality of telescopic holes 9 are all located between two adjacent slots 7, and the plurality of telescopic holes 9 are all located between the plurality of bolt holes 3. After the anti-drop plate 5 is installed on the hinge plate 2, the anti-drop plate 5 can be connected and fixed by connecting the telescopic parts sliding out of the telescopic holes 9 with the positioning holes 10 on the anti-drop plate 5, so as to prevent the anti-drop plate 5 from falling off the hinge plate 2 and improve the connection firmness between the anti-drop plate 5 and the hinge plate 2, wherein one telescopic part can be provided to facilitate the limit operation, or multiple telescopic parts can be provided to improve the connection firmness of the anti-drop plate 5.

[0029] like Figure 4 and Figure 5 As shown, the telescopic member includes a positioning block 11 and two symmetrically arranged elastic sheets 12, one end of each of the two elastic sheets 12 is fixedly connected to the side of the telescopic hole 9 away from the anti-dropout plate 5, and the other end of each of the two elastic sheets 12 is fixedly connected to the positioning block 11, the positioning block 11 is slidably connected to the inner wall of the telescopic hole 9, and one end of the positioning block 11 away from the two elastic sheets 12 is slidably connected to the adjacent positioning hole 10. When installing the anti-dropout plate 5, the positioning block 11 is pressed into the telescopic hole 9, and then the anti-dropout plate 5 is inserted onto the hinge plate 2. When the positioning hole 10 on the anti-dropout plate 5 coincides with the positioning block 11, the two elastic sheets 12 drive the positioning block 11 to move to the outside of the telescopic hole 9, so that the positioning block 11 is stuck between the telescopic hole 9 and the positioning hole 10, and the anti-dropout plate 5 is connected and fixed, so as to prevent the anti-dropout plate 5 from falling off the hinge plate 2.

[0030] like Figure 1 - Figure 5 As shown, both sides of the positioning block 11 near the two ends of the slot 7 are designed with arc surfaces. The upper and lower sides of the positioning block 11 are set as arc surfaces, so that after the positioning block 11 is pressed into the telescopic hole 9 to a certain extent, the positioning block 11 can be squeezed into the telescopic hole 9 through the anti-slip plate 5, which is more convenient to use.

[0031] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that many changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention.

Claims

1. A hinge for an aluminum alloy door or window, comprising a hinge pin (1) and two hinge plates (2) rotating around the hinge pin (1), characterized in that: The side walls of the two hinge plates (2) are penetrated with a plurality of bolt holes (3), and screws (4) are inserted into the plurality of bolt holes (3). The outwardly facing sides of the two hinge plates (2) are connected with anti-slip plates (5), and the two anti-slip plates (5) respectively cover the plurality of bolt holes (3) on the two hinge plates (2). The two anti-slip plates (5) are connected with mounting components on the sides close to the hinge plates (2), and the two mounting components are respectively connected to the two hinge plates (2).

2. The hinge for aluminum alloy doors and windows according to claim 1, characterized in that: The mounting assembly comprises two symmetrically arranged inserting strips (6), the two inserting strips (6) being respectively fixedly connected to a side of the anti-slip plate (5) close to the hinge pin (1) and a side away from the hinge pin (1), and two slots (7) are provided on a side of the hinge plate (2) close to the anti-slip plate (5), the two slots (7) are respectively matched with two adjacent inserting strips (6), and both ends of the two slots (7) are through-set, and the two inserting strips (6) are respectively slidably connected to the two slots (7).

3. A hinge for aluminum alloy doors and windows according to claim 1 or 2, characterized in that: The anti-slip plate (5) is slidably connected to the side adjacent to the hinge plate (2).

4. The hinge for aluminum alloy doors and windows according to claim 1 or 2, characterized in that: A nut hole (8) is provided on one side of the bolt hole (3) close to the anti-slip plate (5), and the nut of the self-tapping screw (4) is located in the nut hole (8).

5. The hinge for aluminum alloy doors and windows according to claim 1 or 2, characterized in that: A plurality of telescopic holes (9) are provided on a side of the hinge plate (2) close to the anti-slip plate (5), and telescopic parts are slidably connected in the plurality of telescopic holes (9). A positioning hole (10) matching the plurality of telescopic parts is provided through the side of the anti-slip plate (5) close to the hinge plate (2), and the plurality of telescopic parts are slidably connected to the plurality of positioning holes (10), respectively. The plurality of telescopic holes (9) are located between two adjacent slots (7), and the plurality of telescopic holes (9) are located between the plurality of bolt holes (3).

6. The hinge for aluminum alloy doors and windows according to claim 5, characterized in that: The telescopic member comprises a positioning block (11) and two symmetrically arranged elastic sheets (12), one end of each of the two elastic sheets (12) being fixedly connected to a side of the telescopic hole (9) away from the anti-drop plate (5), the other ends of each of the two elastic sheets (12) being fixedly connected to the positioning block (11), the positioning block (11) being slidably connected to the inner wall of the telescopic hole (9), and one end of the positioning block (11) away from the two elastic sheets (12) being slidably connected to an adjacent positioning hole (10).

7. The hinge for aluminum alloy doors and windows according to claim 6, characterized in that: Both sides of the positioning block (11) close to the two ends of the slot (7) are designed as arc surfaces.

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