CN216866358U

CN216866358U - Connecting hinge

Info

Publication number: CN216866358U
Application number: CN202123447852.XU
Authority: CN
Inventors: 罗红兵
Original assignee: Ningbo Defa Technology Co ltd
Current assignee: Ningbo Defa Technology Co ltd
Priority date: 2021-12-31
Filing date: 2021-12-31
Publication date: 2022-07-01
Anticipated expiration: 2031-12-31

Abstract

The application relates to a connecting hinge, which relates to the technical field of aluminum profile connecting pieces and comprises a first connecting seat and a second connecting seat, wherein the first connecting seat is used for connecting an aluminum profile, the second connecting seat is used for connecting another aluminum profile, the first connecting seat and the second connecting seat are respectively provided with a first rotating plate, and the first connecting seat and the second connecting seat are respectively provided with a second rotating plate which is matched and rotatably connected with the first rotating plate; one first rotating plate is provided with a rotating mechanism which is used for being connected with one second rotating plate in a rotating mode, and the other first rotating plate is provided with a locking mechanism which is used for locking the other second rotating plate. This application has the angle locking that makes between the hinge to make the stable effect of connection between two aluminium alloy.

Description

Connecting hinge

Technical Field

The application relates to the technical field of aluminum profile connecting pieces, in particular to a connecting hinge.

Background

The aluminum profile is an aluminum alloy profile, and aluminum has excellent corrosion resistance, electrical conductivity, thermal conductivity, non-ferromagnetism, workability, formability, and recyclability, so that the aluminum profile is used in various fields.

In the correlation technique, two aluminium alloy need carry out certain angle's rotation in the use after connecting, generally adopt the hinge to connect two aluminium alloys, allow to do relative rotation between the two after connecting two aluminium alloys through the hinge.

With respect to the related art in the above, the inventors consider that: after the two aluminum profiles are connected through the hinges, the two aluminum profiles are allowed to rotate relatively, but the angles between the hinges cannot be locked, so that the connection between the two aluminum profiles is unstable, and an improved space is provided.

SUMMERY OF THE UTILITY MODEL

In order to lock the angle between the hinges and thus stabilize the connection between two aluminium profiles, the present application provides a connecting hinge.

The application provides a connect hinge adopts following technical scheme:

a connecting hinge comprises a first connecting seat for connecting an aluminum profile and a second connecting seat for connecting another aluminum profile, wherein the first connecting seat and the second connecting seat are both provided with a first rotating plate, and the first connecting seat and the second connecting seat are both provided with a second rotating plate which is matched with the first rotating plate and is in rotating connection;

one first rotating plate is provided with a rotating mechanism which is used for being connected with one second rotating plate in a rotating mode, and the other first rotating plate is provided with a locking mechanism which is used for locking the other second rotating plate.

By adopting the technical scheme, the first rotating plates are arranged on the first connecting seat and the second connecting seat, the second rotating plates are arranged on the first connecting seat and the second connecting seat, one first rotating plate and one second rotating plate rotate through the rotating mechanism, the other first rotating plate and the other second rotating plate are locked through the locking mechanism, the rotating angle between the first connecting seat and the second connecting seat is locked, and therefore the two aluminum profiles are stably connected.

Optionally, the locking mechanism comprises a locking ring and an adjusting screw handle;

the adjusting screw handle is arranged on one side, far away from the first rotating plate, of the second rotating plate, the locking ring is located between the adjusting screw handle and the second rotating plate, the adjusting screw handle penetrates through the locking ring and is in threaded connection with the first rotating plate, and the adjusting screw handle is used for pressing the locking ring and enabling the locking ring to move towards the second rotating plate;

the locking ring is provided with a first penetrating hole for the adjustment screw shank to penetrate through, and the first rotating plate is provided with a threaded hole in threaded connection with the adjustment screw shank.

Through adopting above-mentioned technical scheme, will adjust the shank and pass the locking collar and with first rotating plate threaded connection, compress tightly the locking collar through rotating the adjustment shank, compress tightly the locking collar on the second rotating plate to lock first rotating plate and second rotating plate, make first rotating plate and second rotating plate be difficult to rotate.

Optionally, first rotor plate is close to one side of second rotor plate is provided with the fixed block, the locking collar is close to one side of second rotor plate be provided with the fixed block inserts the complex joint ring, seted up the confession on the second rotor plate fixed block normal running fit's second wears to establish the hole, the hole confession is worn to establish by the second joint ring normal running fit, the confession has been seted up on the joint ring fixed block male locking groove.

Through adopting above-mentioned technical scheme, set up the fixed block on first rotor plate, insert the locking inslot through the fixed block to make joint ring and fixed block joint each other, increase the area of contact between joint ring and the first rotor plate, rotate the adjustment spiral shell handle again and make adjustment spiral shell handle and locking ring closely butt, make the rotation angle between first rotor plate and the second rotor plate lock, thereby make first rotor plate and second rotor plate be difficult to take place to rotate.

Optionally, the second rotating plate is provided with a first ring releasing groove for placing the locking ring.

By adopting the technical scheme, the second rotating plate is provided with the first ring release groove, and the locking ring is placed in the first ring release groove, so that the total volume occupied by the locking ring and the second rotating plate is reduced; and the contact area between the locking ring and the second rotating plate is increased through the first ring placing groove, so that the locking ring is not easy to fall off from the second rotating plate.

Optionally, the rotating mechanism includes a rotating ring, a rotating bolt, and a contact ring;

the rotating bolt is arranged on one side, far away from the locking mechanism, of the second rotating plate, the rotating ring is located between the rotating bolt and the second rotating plate, and the rotating bolt penetrates through the rotating ring and is in threaded connection with the first rotating plate;

the collision ring is arranged on one side, close to the second rotating plate, of the rotating ring, the collision ring is used for enabling a gap to be reserved between the rotating ring and the second rotating plate, and a second penetrating hole for the collision ring to be in rotating fit with is formed in the second rotating plate;

the rotating ring is provided with a rotating hole for the rotating bolt to insert and rotate, and the first rotating plate is provided with a threaded hole in threaded connection with the rotating bolt.

Through adopting above-mentioned technical scheme, will rotate the bolt and pass the rotating ring and with first rotating plate threaded connection to be connected first rotating plate and second rotating plate, and through set up the conflict ring on the rotating ring, make and leave the clearance between rotating ring and the second rotating plate, thereby make first rotating plate and second rotating plate rotate.

Optionally, a second ring-releasing groove for placing the rotating ring is formed in the second rotating plate.

By adopting the technical scheme, the second annular release groove is formed in the second rotating plate, and the rotating ring is placed in the second annular release groove, so that the total volume occupied by the rotating ring and the second rotating plate is reduced; and the contact area between the rotating ring and the second rotating plate is increased through the second ring placing groove, so that the rotating ring is not easy to fall off from the second rotating plate.

Optionally, a gasket is disposed between the first rotating plate and the second rotating plate, and the gasket is sleeved on the rotating bolt or the adjusting screw handle.

By adopting the technical scheme, the gasket is arranged between the first rotating plate and the second rotating plate, and the first rotating plate is not in direct contact with the second rotating plate through the gasket, so that the abrasion between the first rotating plate and the second rotating plate is reduced, and the service life of the first rotating plate and the service life of the second rotating plate are prolonged.

Optionally, a placing groove for placing the gasket is formed in the first rotating plate.

Through adopting above-mentioned technical scheme, set up the standing groove on first rotor plate, through placing the gasket in the standing groove to reduce the shared overall volume of gasket, first rotor plate and second rotor plate, and when the gasket was not located on the rotation bolt, the gasket was difficult to drop from between first rotor plate and the second rotor plate.

Optionally, a fixing column is disposed on one side of the gasket, which is close to the first rotating plate, a fixing groove into which the fixing column is inserted and placed is formed in the first rotating plate, and the fixing groove is communicated with the placing groove.

By adopting the technical scheme, the fixing column is arranged on the gasket, and the gasket is not easy to rotate along with the rotation of the first rotating plate by placing the fixing column in the fixing groove; and the contact area between the gasket and the first rotating plate is increased, so that the gasket is not easy to fall off from the space between the first rotating plate and the second rotating plate when the gasket is not sleeved on the rotating bolt.

Optionally, a positioning piece convenient to position on the aluminum profile is arranged on one side, away from the first rotating plate, of the first connecting seat; one side of the second connecting seat, which is far away from the first rotating plate, is provided with a cross-shaped groove.

By adopting the technical scheme, the positioning piece is arranged on the first connecting seat, and when an operator connects the first connecting seat with the aluminum profile, the positioning piece is inserted into the groove on the aluminum profile, so that the operator can position the first connecting seat conveniently; set up the cross recess on the second connecting seat, when the operator is connected second connecting seat and aluminium alloy, install cross piece at the cross recess, insert the groove on the aluminium alloy through cross piece to make things convenient for the operator to fix a position first connecting seat.

In summary, the present application includes at least one of the following beneficial technical effects:

1. one first rotating plate and one second rotating plate are rotated through the rotating mechanism, the other first rotating plate and the second rotating plate are locked through the locking mechanism, and the rotating angle between the first connecting seat and the second connecting seat is locked, so that the two aluminum profiles are stably connected;

2. the adjusting screw handle penetrates through the locking ring and is in threaded connection with the first rotating plate, the locking ring is pressed by rotating the adjusting screw handle, and the locking ring is pressed on the second rotating plate, so that the first rotating plate and the second rotating plate are locked, and the first rotating plate and the second rotating plate are not easy to rotate;

3. and a rotating bolt penetrates through the rotating ring and is in threaded connection with the first rotating plate so as to connect the first rotating plate and the second rotating plate, and a contact ring is arranged on the rotating ring so that a gap is reserved between the rotating ring and the second rotating plate, so that the first rotating plate and the second rotating plate rotate.

Drawings

Fig. 1 is a schematic view of the overall structure of the connection hinge in the embodiment of the present application.

Fig. 2 is an exploded view of the first connector and the gasket according to the embodiment of the present disclosure.

Fig. 3 is an exploded view of the first connector and the gasket according to the embodiment of the present application.

Fig. 4 is an exploded view of the first connecting seat and the gasket according to the embodiment of the present disclosure.

Fig. 5 is an exploded view of the second connecting seat and the gasket according to the embodiment of the present application.

Fig. 6 is an exploded view illustrating the first connecting seat, the second connecting seat, the locking mechanism and the rotating mechanism in the embodiment of the present application.

Fig. 7 is an exploded view of the first connecting seat, the second connecting seat, the locking mechanism and the rotating mechanism in the embodiment of the present application.

Description of reference numerals: 1. a first connecting seat; 2. a second connecting seat; 3. a rotating ring; 4. a first rotating plate; 5. a second rotating plate; 6. rotating the bolt; 7. a locking mechanism; 8. a fixed block; 9. a locking ring; 10. a first through hole; 11. a snap ring; 12. a second through hole; 13. a first ring relief groove; 14. adjusting the screw handle; 15. a second ring-releasing groove; 16. a gasket; 17. a placement groove; 18. fixing a column; 19. a fixing groove; 20. positioning plates; 21. a cross groove; 22. a receding groove; 23. a threaded ring; 24. a threaded hole; 25. a cross block; 26. a rotating mechanism; 27. rotating the hole; 28. a contact ring; 29. and locking the grooves.

Detailed Description

The present application is described in further detail below with reference to figures 1-7.

Referring to fig. 1, an embodiment of the present application discloses a connection hinge, which includes a first connection seat 1 and a second connection seat 2. The cross-sectional area of first connecting seat 1 is inequality with the cross-sectional area of second connecting seat 2 to make first connecting seat 1 and second connecting seat 2 fix with the aluminium alloy of two different specifications respectively. The first connecting seat 1 and the second connecting seat 2 are integrally provided with a first rotating plate 4, the first connecting seat 1 and the second connecting seat 2 are integrally provided with a second rotating plate 5 which is rotatably connected with the first rotating plate 4, and the first rotating plate 4 and the second rotating plate 5 are arranged in a staggered manner. The rotating mechanism 26 is installed on the first rotating plate 4 on the second connecting holder 2, the rotating mechanism 26 is used for enabling the first rotating plate 4 on the second connecting holder 2 and the second rotating plate 5 on the first connecting holder 1 to rotate, the locking mechanism 7 is installed on the first rotating plate 4 on the first connecting holder 1, and the locking mechanism 7 is used for fixing the rotating angle between the first connecting holder 1 and the second connecting holder 2. The connection between the two aluminium profiles is stabilized by means of a locking mechanism 7.

Referring to fig. 1, the first connecting seat 1 is provided with a yielding groove 22 for placing the second rotating plate 5 on the second connecting seat 2, and the width of the yielding groove 22 is equal to the width of the second rotating plate 5 on the second connecting seat 2, so that the second rotating plate 5 on the second connecting seat 2 is protected, and the second rotating plate 5 on the second connecting seat 2 is not easy to collide with external objects. In the present embodiment, the first rotating plate 4 and the second rotating plate 5 are U-shaped plates, so that the first rotating plate 4 and the second rotating plate 5 can be conveniently rotated.

Referring to fig. 2 and 3, a gasket 16 is mounted on the first rotating plate 4 on the side close to the second rotating plate 5, and the gasket 16 may be made of rubber or metal with a texture, so that the frictional force between the first rotating plate 4 and the second rotating plate 5 is increased by the gasket 16. A fixing post 18 is integrally provided on one side of the gasket 16 close to the first rotation plate 4, a fixing groove 19 into which the fixing post 18 is inserted and placed is formed in the first rotation plate 4, and the fixing post 18 is inserted and placed in the fixing groove 19, so that the gasket 16 is not easily rotated with the rotation of the first rotation plate 4. In this embodiment, the adjusting screw 14 is sleeved on the rotating bolt 6, and the pad 16 on one side is made of metal with a pattern, and the pad 16 on the other side is made of rubber. The fixed posts 18 are provided in two, and the two fixed posts 18 are symmetrically arranged about the axial center line of the threaded hole 24.

Referring to fig. 2 and 3, a placing groove 17 for placing the gasket 16 is formed on a side of the first rotating plate 4 close to the gasket 16, and the depth of the placing groove 17 is smaller than the thickness of the gasket 16, so that the side of the gasket 16 far from the first rotating plate 4 is tightly abutted to the second rotating plate 5.

Referring to fig. 2 and 3, a positioning piece 20 is integrally disposed on a side of the first connecting seat 1 away from the first rotating plate 4, and the positioning piece 20 is used for positioning a groove on an aluminum profile, so that an operator can conveniently mount the first connecting seat 1 on the aluminum profile.

Referring to fig. 4 and 5, a cross-shaped groove 21 is formed in one side of the second connecting seat 2 away from the first rotating plate 4, the cross-shaped groove 21 is used for installing a cross block 25, and the cross block 25 is positioned with a groove in the aluminum profile, so that an operator can conveniently install the first connecting seat 1 on the aluminum profile.

Referring to fig. 3 and 4, a fixing block 8 is integrally arranged on one side, close to the second rotating plate 5 on the second connecting seat 2, of the first rotating plate 4 on the first connecting seat 1, a fixing block 8 is integrally arranged on one side, close to the second rotating plate 5 on the first connecting seat 1, of the first rotating plate 4 on the second connecting seat 2, and second through holes 12 for the fixing block 8 to be in running fit are formed in the second rotating plate 5 on the first connecting seat 1 and the second rotating plate 5 on the second connecting seat 2.

Referring to fig. 6 and 7, the locking mechanism 7 includes a locking ring 9 and an adjusting screw handle 14, the locking ring 9 is located on one side of the second rotating plate 5 on the second connecting seat 2 away from the first rotating plate 4 on the first connecting seat 1, the adjusting screw handle 14 is located on one side of the locking ring 9 away from the second rotating plate 5 on the second connecting seat 2, the adjusting screw handle 14 is used for compressing the locking ring 9 and pushing the locking ring 9 to move towards the direction close to the second rotating plate 5 on the second connecting seat 2, a threaded hole 24 for the adjusting screw handle 14 to be in threaded connection is formed in the first rotating plate 4 on the first connecting seat 1, a first through hole 10 for the adjusting screw handle 14 to penetrate is formed in the locking ring 9, the adjusting screw handle 14 sequentially penetrates through the first through hole 10, the second through hole 12 is in threaded connection with the threaded hole 24, and the locking ring 9 is limited on the second rotating plate 5. Thereby compress tightly locking ring 9 through rotating adjustment screw 14 to make locking ring 9 closely butt with the second rotor plate 5 on the second connecting seat 2, lock second rotor plate 5 on the second connecting seat 2 and the first rotor plate 4 on the first connecting seat 1, thereby make the turned angle between second connecting seat 2 and the first connecting seat 1 fix.

Referring to fig. 6 and 7, the locking ring 9 and the integrative joint ring 11 that is provided with in one side of being close to second rotor plate 5 on the second connecting seat 2, joint ring 11 normal running fit wears to establish in hole 12 in the second, and set up on the joint ring 11 and supply 8 male locking grooves 29 of fixed block, insert in the locking grooves 29 through fixed block 8, thereby make

joint ring

11 and 8 joint of fixed block each other, joint ring 11 together rotates with first rotor plate 4 on the first connecting seat 1, thereby when convenient adjustment spiral shell handle 14 compresses tightly locking ring 9, increase the locking effect.

Referring to fig. 6 and 7, a first ring releasing groove 13 for placing the locking ring 9 is formed in one side, away from the first rotating plate 4 on the first connecting seat 1, of the second rotating plate 5 on the second connecting seat 2, and the depth of the first ring releasing groove 13 is smaller than the thickness of the locking ring 9, so that when the total volume occupied by the second rotating plate 5 and the locking ring 9 on the second connecting seat 2 is reduced, the contact area between the second rotating plate 5 and the locking ring 9 on the second connecting seat 2 is increased, and the locking ring 9 is not easy to fall off from the second rotating plate 5 on the second connecting seat 2.

Referring to fig. 6 and 7, the rotating mechanism 26 includes a rotating ring 3 and a rotating bolt 6, the rotating bolt 6 is located on a side of the second rotating plate 5 on the first connecting seat 1 away from the first rotating plate 4 on the second connecting seat 2, the rotating ring 3 is located between the second rotating plate 5 on the first connecting seat 1 and the rotating bolt 6, a rotating hole 27 for the rotating bolt 6 to pass through and rotate is formed in the rotating ring 3, a threaded hole 24 for the rotating bolt 6 to be in threaded connection is formed in the first rotating plate 4 on the second connecting seat 2, and the rotating bolt 6 passes through the rotating ring 3 and is in threaded connection with the first rotating plate 4 on the second connecting seat 2, so that the first rotating plate 4 on the second connecting seat 2 is rotatably connected with the second rotating plate 5 on the first connecting seat 1. The rotating ring 3 is close to the integrative department of one side of the second rotor plate 5 on the first connecting seat 1 and is provided with and supports the ring 28 and wear to establish hole 12, offer on the second rotor plate 5 on the first connecting seat 1 and supply to support and support the ring 28 normal running fit's second, the thickness of conflict ring 28 is greater than the 5 thickness of second rotor plate on the first connecting seat 1, thereby there is the clearance between the second rotor plate 5 on messenger's rotating ring 3 and the first connecting seat 1, rotate between the first rotor plate 4 on second rotor plate 5 on convenient the first connecting seat 1 and the second connecting seat 2. In this embodiment, two fixing blocks 8 are provided, the two fixing blocks 8 are symmetrically arranged about the axis of the threaded hole 24, the two snap rings 11 and the two abutting rings 28 are both provided, the two snap rings 11 and the two abutting rings 28 are symmetrically arranged about the axis of the threaded hole 24, a threaded ring 23 for being in threaded fit with the adjusting screw 14 or the rotating bolt 6 is integrally provided on one side of the first rotating plate 4 close to the second rotating plate 5, the two fixing blocks 8 and the threaded ring 23 are integrally provided, and the thickness of the fixing block 8 is equal to that of the threaded ring 23.

Referring to fig. 6 and 7, a second ring groove 15 for placing the rotating ring 3 is formed in one side, away from the first rotating plate 4 on the second connecting seat 2, of the second rotating plate 5 on the first connecting seat 1, the depth of the second ring groove 15 is smaller than the thickness of the rotating ring 3, so that when the total volume occupied by the second rotating plate 5 and the rotating ring 3 on the first connecting seat 1 is reduced, the contact area between the second rotating plate 5 and the rotating ring 3 on the first connecting seat 1 is increased, and the rotating ring 3 is not easy to fall off from the second rotating plate 5 on the first connecting seat 1.

The application process of the connecting hinge in the embodiment of the application is as follows:

1. the positioning piece 20 is positioned with one of the aluminum profiles and fixed through a bolt, the cross block 25 is installed on the cross groove 21, and then the cross block 25 is positioned with the other aluminum profile and fixed through a bolt.

2. The adjusting screw handle 14 is rotated to enable the adjusting screw handle 14 to compress the locking ring 9, the fixing block 8 and the clamping ring 11 are clamped with each other at the moment, so that the angles of the first connecting seat 1 and the second connecting seat 2 are fixed, and the two sides of the gasket 16 are respectively and tightly abutted against the first connecting seat 1 and the second connecting seat 2 at the moment.

The above are preferred embodiments of the present application, and the scope of protection of the present application is not limited thereto, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. A connecting hinge, characterized in that: the aluminum profile connecting device comprises a first connecting seat (1) used for connecting an aluminum profile and a second connecting seat (2) used for connecting another aluminum profile, wherein the first connecting seat (1) and the second connecting seat (2) are both provided with a first rotating plate (4), and the first connecting seat (1) and the second connecting seat (2) are both provided with a second rotating plate (5) which is matched and rotatably connected with the first rotating plate (4);

and a rotating mechanism (26) which is used for being rotatably connected with one second rotating plate (5) is arranged on one first rotating plate (4), and a locking mechanism (7) which is used for locking the other second rotating plate (5) is arranged on the other first rotating plate (4).

2. A connecting hinge according to claim 1, characterized in that: the locking mechanism (7) comprises a locking ring (9) and an adjusting screw handle (14);

the adjusting screw handle (14) is arranged on one side, away from the first rotating plate (4), of the second rotating plate (5), the locking ring (9) is located between the adjusting screw handle (14) and the second rotating plate (5), the adjusting screw handle (14) penetrates through the locking ring (9) and is in threaded connection with the first rotating plate (4), and the adjusting screw handle (14) is used for pressing the locking ring (9) and enabling the locking ring (9) to move towards the second rotating plate (5);

the locking ring (9) is provided with a first penetrating hole (10) for the adjusting screw shank (14) to penetrate through, and the first rotating plate (4) is provided with a threaded hole (24) in threaded connection with the adjusting screw shank (14).

3. A connecting hinge according to claim 2, wherein: first rotor plate (4) are close to one side of second rotor plate (5) is provided with fixed block (8), locking ring (9) are close to one side of second rotor plate (5) be provided with fixed block (8) insert complex joint ring (11), the confession has been seted up on second rotor plate (5) fixed block (8) normal running fit's second wears to establish hole (12), second wear to establish hole (12) confession joint ring (11) normal running fit, the confession has been seted up on joint ring (11) fixed block (8) male locking groove (29).

4. A connecting hinge according to claim 3, wherein: and a first ring releasing groove (13) for placing the locking ring (9) is formed in the second rotating plate (5).

5. A connecting hinge according to claim 2, wherein: the rotating mechanism (26) comprises a rotating ring (3), a rotating bolt (6) and an abutting ring (28);

the rotating bolt (6) is arranged on one side, far away from the locking mechanism (7), of the second rotating plate (5), the rotating ring (3) is located between the rotating bolt (6) and the second rotating plate (5), and the rotating bolt (6) penetrates through the rotating ring (3) and is in threaded connection with the first rotating plate (4);

the contact ring (28) is arranged on one side, close to the second rotating plate (5), of the rotating ring (3), the contact ring (28) is used for enabling a gap to be reserved between the rotating ring (3) and the second rotating plate (5), and a second penetrating hole (12) for the contact ring (28) to be in rotating fit is formed in the second rotating plate (5);

the rotating ring (3) is provided with a rotating hole (27) for the rotating bolt (6) to be inserted and rotate, and the first rotating plate (4) is provided with a threaded hole (24) in threaded connection with the rotating bolt (6).

6. A connecting hinge according to claim 5, characterized in that: and a second ring-releasing groove (15) for placing the rotating ring (3) is formed in the second rotating plate (5).

7. A connection hinge according to claim 6, wherein: a gasket (16) is arranged between the first rotating plate (4) and the second rotating plate (5), and the rotating bolt (6) or the adjusting screw handle (14) is sleeved with the gasket (16).

8. A connection hinge according to claim 7, wherein: the first rotating plate (4) is provided with a placing groove (17) for placing the gasket (16).

9. A connection hinge according to claim 8, wherein: a fixing column (18) is arranged on one side, close to the first rotating plate (4), of the gasket (16), a fixing groove (19) for the fixing column (18) to be inserted and placed is formed in the first rotating plate (4), and the fixing groove (19) is communicated with the placing groove (17).

10. A connecting hinge according to claim 1, wherein: a positioning piece (20) which is convenient to position on the aluminum profile is arranged on one side, away from the first rotating plate (4), of the first connecting seat (1); one side of the second connecting seat (2) far away from the first rotating plate (4) is provided with a cross groove (21).