CN218150392U - Multi-fulcrum opening-closing shaft-changing hinge - Google Patents

Abstract

The utility model discloses a multi-fulcrum opening and closing variable shaft hinge. The left and right ends of the front part of the front rotating bracket are respectively rotatably connected in the left front shaft hole and the right front shaft hole, and the left and right ends of the rear part of the front rotating bracket are respectively rotatably connected. In the left front down rotation hole and the right front down rotation hole, the left and right ends of the upper rear part of the middle rotation bracket are respectively rotatably connected to the left front up rotation hole and the right front up rotation hole, and the left support block is located on the right side of the left plate and The upper left rear shaft hole is connected by rotation, the right support block is located on the left side of the right side plate and connected with the upper right rear shaft hole by rotation, the left end of the rear rotation shaft of the rear rotation bracket is rotated and inserted through the left rear rotation hole and slides left and right In the left slot hole, the right end of the rear rotating shaft of the rear rotation bracket is rotated and inserted through the right rear rotation hole and inserted in the right slot hole by sliding left and right. The multi-pivot opening and closing variable axis hinge of the utility model can bypass the bottom structure of the box body, the tabletop or the cabinet area along the lower edge, and effectively avoid the phenomenon of jamming.

Description

Multi-pivot opening and closing variable axis hinge

technical field

The utility model relates to the field of connecting accessories, in particular to a multi-fulcrum opening and closing variable axis hinge.

Background technique

Traditional opening and closing hinges are generally single-axis opening and closing hinges. The door body equipped with single-axis opening and closing hinges cannot bypass the bottom structure of the cabinet, the table top or the lower cabinet area due to the fixed rotation center, which may easily cause the top to be stuck.

Utility model content

The purpose of the utility model is to provide a multi-fulcrum opening and closing variable axis hinge to solve the above technical problems.

In order to achieve the above purpose, the technical solution of the present utility model is to provide a multi-fulcrum opening and closing variable axis hinge, including a shell, a connecting plate rotating frame, a front rotating bracket, a middle rotating bracket, a rear rotating bracket, and a rear rotating bracket Rear shaft, extension spring and extension spring rear sleeve rod, the housing includes a left mounting plate placed vertically from front to back, a right mounting plate located on the right side of the left mounting plate and parallel to the left mounting plate, and a middle The connecting plate, the left and right ends of the middle connecting plate are fixedly connected with the lower end of the left mounting plate and the lower end of the right mounting plate respectively, and the front lower part of the left mounting plate is provided with a left front lower turning hole, and the The left mounting plate is provided with a left front upward turning hole above the rear and upper side of the left front downward turning hole, and the left mounting plate is provided with a left and right opening left and right that runs through the left mounting plate and is forward and backward. Slotted holes; the right mounting plate is provided with a right front lower turning hole directly to the right of the left front lower turning hole, and the right mounting plate is provided with a right front upper turning hole directly to the right of the left front upper turning hole , the right mounting plate is provided with a right slot hole that runs through the right mounting plate left and right at the right side of the left slot hole and is in a forward and backward direction. The right side wall of the rear part of the extension spring is fixedly connected, the right end of the rear sleeve rod of the tension spring is fixedly connected with the left side wall of the rear part of the right mounting plate, and the connecting plate rotating frame includes a connecting plate, a left support plate and the right support plate, the connecting plate is placed vertically and left and right, the left and right ends of the connecting plate are respectively fixedly connected with the front upper end of the left support plate and the front upper end of the right support plate, the The front lower part of the left support plate is provided with a left front axle hole, the rear lower part of the left support plate is provided with a left rear axle hole, and the right support plate is provided with a right front axle hole directly to the right of the left front axle hole. The right support plate is provided with a right rear axle hole directly to the right of the left rear axle hole, and the front part of the front swivel bracket is placed between the left support plate and the right support plate. The left and right ends of the front part of the front rotating bracket are respectively rotatably connected in the left front shaft hole and the right front shaft hole, and the rear part of the front rotating bracket is placed between the left mounting plate and the right mounting plate , the left and right ends of the rear part of the front rotating bracket are respectively rotatably connected to the left front lower turning hole and the right front lower turning hole, and the middle rotating bracket includes a left side plate, a right side plate and a rear connecting plate , the left side plate is placed vertically and is in a front-to-back direction, the right side plate and the left side plate are parallel to each other and are located directly to the right of the left side plate, and the left and right ends of the rear connecting plate are respectively connected to The left side plate and the right side plate are fixedly connected, the upper rear part of the left side plate is provided with an upper left rear axle hole, and the right side plate is opened with an upper right rear axle hole directly to the right of the upper left rear axle hole. Rear shaft hole, the lower front part of the middle rotating bracket is placed between the left support and the right support plate, the front lower part of the left plate is placed on the right side of the left support plate and is located on the The left side of the front swivel bracket, the front lower part of the left side plate is rotatably connected in the left rear shaft hole, the front lower part of the right side plate is placed on the left side of the right support plate and is located in the front Rotate the right side of the bracket, the front lower part of the right side plate is rotatably connected in the right rear shaft hole, the upper rear part of the middle rotating bracket is placed on the Between the left mounting plate and the right mounting plate, the left and right ends of the upper rear portion of the middle rotating bracket are respectively rotatably connected to the left front upper rotation hole and the right front upper rotation hole, and the left upper rear shaft The hole is located at the rear and lower part of the left front upper rotation hole, the upper right rear axle hole is located at the rear lower part of the right front upper rotation hole, and the rear rotation bracket includes a left support block, a right support block and a connecting support block, and the left The support block is placed vertically and moves forward and backward. The right support block and the left support block are parallel to each other and are located on the right side of the left support block. The left and right ends of the connecting support block are respectively connected to the left support block. The block and the right support block are fixedly connected, the rear end of the left support block is provided with a left rear rotation hole, and the rear end of the right support block is provided with a right rear rotation hole directly to the right of the left rear rotation hole. hole, the left support block is located on the right side of the left side plate and is connected to the upper left rear axle hole in rotation, and the right support block is located on the left side of the right side plate and is connected to the upper right rear axle hole Connected in rotation, the left end of the rear rotating shaft of the rear rotating bracket is rotated and inserted through the left rear rotating hole and inserted in the left slot sliding left and right, and the right end of the rear rotating shaft of the rear rotating bracket is inserted in a rotating manner Pass through the right rear rotation hole and slide left and right and insert in the right slot hole, the connection support block is facing the rear rotation shaft of the rear rotation bracket with a hook gap, the front end of the tension spring is elastic The hook is hooked on the rear rotating shaft of the rear rotating bracket, and the rear end of the extension spring is elastically fixed on the rear sleeve rod of the extension spring.

Preferably, the front part of the left end of the middle connection plate extends horizontally to the left to form a left installation block, and the front part of the right end of the middle connection board extends horizontally to the right to form a right installation block.

Preferably, the multi-pivot opening and closing variable axis hinge further includes a first front rotating rivet and a first rear rotating rivet, the front rotating bracket includes a front rotating part, a rear rotating part and a middle reinforcing rib, the front The screw joint is placed horizontally from left to right, and the front screw joint is cylindrical with a front installation notch on the upper part, and the rear screw joint is placed horizontally from left to right, and the rear screw joint is The upper part has a cylindrical shape with a rear installation gap, the middle rib is curved upwards, and the front end of the middle rib is fixed to the upper part of the front screw joint on the front side of the front installation gap, The rear end of the middle reinforcing rib is fixedly connected to the upper part of the rear screw joint on the rear side of the front installation gap, the first front rotary rivet is horizontally placed left and right, and the first front rotary rivet rotates It is provided to pass through the central hole of the front screw joint, the left and right ends of the first front rotary rivet are fixedly inserted in the left front shaft hole and the right front shaft hole respectively, and the left and right sides of the first rear rotary rivet are horizontal Placement, the first rear rotary rivet is rotated and inserted through the central hole of the rear screw joint, and the left and right ends of the first rear rotary rivet are fixedly inserted in the left front lower rotation hole and the right front down the hole.

Preferably, the multi-pivot opening and closing hinge further includes a second rear rotation rivet, the front end of the left support block is provided with a front left rotation shaft hole, and the front end of the right support block is connected to the front rotation shaft hole. There is a front right rotation axis hole on the right side, and the left end of the second rear rotation rivet is fixedly inserted through the front left rotation axis hole and rotated and inserted in the left upper rear axis hole. The second rear rotation rivet The right end of the rivet is fixedly inserted through the front right rotation shaft hole and rotated and inserted in the upper right rear shaft hole.

Preferably, the left and right ends of the rear connecting plate are fixedly connected to the top of the left side plate and the top of the right side plate respectively.

Preferably, the left and right ends of the connecting support block are respectively fixedly connected to the top of the left support block and the top of the right support block.

Compared with the prior art, the multi-pivot opening and closing variable axis hinge of the utility model can bypass the bottom structure of the box body, the tabletop or the cabinet area along the lower edge, effectively avoiding the phenomenon of jamming.

The utility model will become clearer through the following description in conjunction with the accompanying drawings, which are used to explain the embodiments of the utility model.

Description of drawings

Fig. 1 is a structural diagram of the multi-pivot opening and closing hinge of the utility model.

Fig. 2 is an exploded view of the multi-fulcrum opening and closing hinge of the utility model.

Fig. 3 is a partial structural diagram of the multi-pivot opening and closing hinge of the utility model.

Fig. 4 is a cross-sectional view of the multi-pivot opening and closing hinge of the utility model in an open state.

Fig. 5 is a cross-sectional view of the closed state of the multi-fulcrum opening and closing hinge of the utility model.

Fig. 6 is a dynamic structural diagram of the opening and closing state of the multi-fulcrum opening and closing variable axis hinge of the present invention.

detailed description

Referring to Fig. 1 to Fig. 6, the multi-pivot opening and closing hinge 100 of the utility model includes a housing 10, a connecting plate rotating frame 20, a front rotating bracket 30, a middle rotating bracket 40, a rear rotating bracket 50, and a rear rotating bracket. Rotating shaft 55, extension spring 60 and extension spring rear cover rod 65.

The housing 10 includes a left mounting plate 11 placed vertically from front to back, a right mounting plate 12 located on the right side of the left mounting plate 11 and parallel to the left mounting plate 11 and a middle connecting plate 13, the middle The left and right ends of the connecting plate 13 are respectively affixed to the lower end of the left mounting plate 11 and the lower end of the right mounting plate 12, and the front lower part of the left mounting plate 11 is provided with a left front lower turning hole 111. The mounting plate 11 is provided with a left front upward rotation hole 112 above the left front downward rotation hole 111, and the left mounting plate 11 is provided with left and right through the left mounting plate 11 and below the rear and lower portion of the left front upward rotation hole 112. The left slot hole 113 that is forward and backward; the right mounting plate 12 is provided with a right front lower turning hole 121 directly to the right of the left front lower turning hole 111, and the right mounting plate 12 is located at the left front upper turning hole 112 There is a right front upper turning hole 122 on the right side of the right side, and the right mounting plate 12 is provided with a right slot hole 123 that runs through the right mounting plate 12 and is forward and backward at the right side of the left slot hole 113. , the left end of the extension spring rear cover rod 65 is affixed to the right side wall of the rear portion of the left mounting plate 11, and the right end of the extension spring rear cover rod 65 is connected to the rear portion of the right mounting plate 12. The left side wall is fixedly connected.

The connecting plate swivel frame 20 includes a connecting plate 21, a left support plate 22 and a right supporting plate 23, the connecting plate 21 is vertically placed in a left-right direction, and the left and right ends of the connecting plate 21 are connected to the left support plate respectively. The front upper end of the plate 22 and the front upper end of the right support plate 23 are fixedly connected, the front lower part of the left support plate 22 is provided with a left front axle hole 221, and the rear lower part of the left support plate 22 is provided with a left rear axle hole. (not shown in the figure), the right support plate 23 is provided with a right front axle hole 231 directly to the right of the left front axle hole 221, and the right support plate 23 is provided with a right front axle hole 231 directly to the right of the left rear axle hole. Right rear axle hole 232 is arranged.

The front portion of the front swivel bracket 30 is placed between the left support plate 22 and the right support plate 23, and the left and right ends of the front portion of the front swivel bracket 30 are respectively rotatably connected to the left front axle hole. 221 and the right front shaft hole 231, the rear part of the front rotating bracket 30 is placed between the left mounting plate 11 and the right mounting plate 12, and the left and right ends of the rear part of the front rotating bracket 30 They are respectively rotatably connected to the left front lower turning hole 111 and the right front lower turning hole 121 .

The middle rotating bracket 40 includes a left side plate 41, a right side plate 42 and a rear connecting plate 43. The left side plate 41 is placed vertically and moves forward and backward. The right side plate 42 and the left side plate 41 Parallel to each other and located on the right side of the left side plate 41, the left and right ends of the rear connecting plate 43 are fixedly connected to the left side plate 41 and the right side plate 42 respectively, and the left side plate 41 A left upper rear shaft hole (not shown) is opened on the rear upper part of the upper rear shaft hole (not shown), and the right side plate 42 is provided with a right upper rear shaft hole 422 directly to the right of the left upper rear shaft hole, and the lower front side of the middle rotating bracket 40 part is placed between the left support 22 and the right support plate 23, and the front lower part of the left side plate 41 is placed on the right side of the left support plate 22 and on the left side of the front swivel bracket 30 , the front lower part of the left side plate 41 is rotatably connected in the left rear shaft hole, the front lower part of the right side plate 42 is placed on the left side of the right support plate 23 and is located at the front swivel bracket 30 The right side of the right side, the front lower part of the right side plate 41 is rotatably connected in the right rear shaft hole 232, and the upper rear part of the middle rotating bracket 40 is placed on the left mounting plate 11 and the right mounting plate 12 Between them, the left and right ends of the upper rear portion of the middle rotating bracket 40 are respectively rotatably connected to the left front upper rotation hole 112 and the right front upper rotation hole 122, and the left upper rear shaft hole is located at the left front upper rotation hole. The rear lower part of the hole 112 , the upper right rear shaft hole 422 is located at the lower rear part of the right front upper rotation hole 122 .

The rear rotating bracket 50 includes a left support block 51, a right support block 52 and a connecting support block 53. The left support block 51 is placed vertically and moves forward and backward. The right support block 52 and the left support block 51 are connected to each other. Parallel to and located directly to the right of the left support block 51 , the left and right ends of the connecting support block 53 are fixedly connected to the left support block 51 and the right support block 52 respectively. The rear end of the left support block 51 is provided with a left rear rotation hole 511, and the rear end of the right support block 52 is provided with a right rear rotation hole 521 on the right side of the left rear rotation hole 511. The block 51 is located on the right side of the left side plate 41 and rotates with the upper left rear axle hole, and the right support block 52 is located at the left side of the right side plate 42 and rotates with the upper right rear axle hole 422 connect. The left end of the rear rotating shaft 55 of the rear rotating bracket is rotatably inserted through the left rear rotating hole 511 and inserted in the left slot 113 sliding left and right, and the right end of the rear rotating shaft 55 of the rear rotating bracket is rotatably inserted Pass through the right rear rotation hole 521 and slide left and right into the right slot 123 , and the connecting support 53 is provided with a hooking gap 531 facing the rear rotation shaft 55 of the rear rotation bracket.

The front end of the extension spring 60 is elastically hooked on the rear rotating shaft 55 of the rear rotating bracket, and the rear end of the extension spring 60 is elastically fixed on the rear sleeve rod 65 of the extension spring.

Preferably, the front portion of the left end of the middle connecting plate 13 extends horizontally to the left to form a left mounting block (not shown in the figure), and the front portion of the right end of the middle connecting plate 13 extends horizontally to the right to form a right mounting block 132 .

Preferably, the multi-pivot opening and closing hinge 100 also includes a first front rotating rivet 34 and a first rear rotating rivet 35, and the front rotating bracket 30 includes a front rotating part 31, a rear rotating part 32 and a middle Reinforcing rib 33, the front twisted part 31 is placed horizontally from left to right, and the front twisted part 31 is cylindrical with a front installation notch 311 on the upper part, and the rear twisted part 32 is arranged from left to right Placed horizontally, and the rear twisted part 32 is cylindrical with a rear installation notch 321 on the upper part, the middle rib 33 is curved upwards, and the front end of the middle rib 33 is fixed on the front The upper part of the screw joint part 31 is on the front side of the front installation notch 311, and the rear end of the middle reinforcing rib 33 is fixedly connected to the upper part of the rear screw joint part 32 on the rear side of the front installation notch 321, so The first front rotating rivet 33 is horizontally placed on the left and right, the first front rotating rivet 34 is inserted through the center hole of the front rotating part 31 in rotation, and the left and right ends of the first front rotating rivet 34 are fixed respectively. Inserted into the left front axle hole 221 and the right front axle hole 231, the first rear rotary rivet 34 is horizontally placed left and right, and the first rear rotary rivet 35 is rotated and inserted through the rear screw joint 32 The left and right ends of the first rear rotating rivet 35 are fixedly inserted into the left front lower rotating hole 111 and the right front lower rotating hole 121 respectively. The cylindrical structure of the front rotating part 31 and the rear rotating part 32 can more stably support the rotation of the first front rotating rivet 34 and the first rear rotating rivet 35, and the middle rib 33 is curved upwards to make The strength to the middle rib 33 is higher, and it is not easily deformed.

Preferably, the multi-pivot opening and closing variable axis hinge 100 also includes a second rear rotation rivet 44, the front end of the left support block 51 is provided with a front left rotation axis hole 512, and the front end of the right support block 52 is located at the Right on the right side of the front rotation shaft hole 512 is a front right rotation shaft hole 522, and the left end of the second rear rotation rivet 44 is fixedly inserted through the front left rotation shaft hole 512 and rotated to the upper left rear shaft. In the hole, the right end of the second rear rotary rivet 44 is fixedly inserted through the front right rotary shaft hole 522 and rotated in the upper right rear shaft hole 422 .

Preferably, the left and right ends of the rear connecting plate 43 are fixedly connected to the top of the left side plate 41 and the top of the right side plate 42 respectively.

Preferably, the left and right ends of the connecting support block 53 are respectively fixedly connected to the top of the left support block 51 and the top of the right support block 52 .

When the multi-pivot opening and closing hinge 100 of the utility model is used, the left installation block and the right installation block 132 are fixedly installed on the fixed part, and the movable part 200 is fixed on the connecting block 21, referring to Fig. 4 to Fig. 6, the movable part One corner of 200 can move from point A to point B, the vertical direction can move the distance of Y range, the horizontal direction can move the distance of X range, and it can bypass the bottom structure of the cabinet, the desktop or the lower cabinet area, effectively avoiding jamming The appearance of collision phenomenon.

The utility model is described above in conjunction with the best embodiment, but the utility model is not limited to the above-disclosed embodiment, but should cover various modifications and equivalent combinations based on the essence of the embodiment.

Claims (6)

1. A multi-pivot opening and closing variable shaft hinge, characterized in that it includes a shell, a connecting plate rotating frame, a front rotating bracket, a middle rotating bracket, a rear rotating bracket, a rear rotating shaft of the rear rotating bracket, an extension spring and an extension spring The rear sleeve rod, the shell includes a left mounting plate placed vertically from front to back, a right mounting plate located on the right side of the left mounting plate and parallel to the left mounting plate, and a middle connecting plate, the middle connecting plate The left and right ends of the left and right mounting plates are respectively affixed to the lower end of the left mounting plate and the lower end of the right mounting plate. There is a left front upper turning hole on the rear upper part of the turning hole, and the left mounting plate is provided with a left slot hole running through the left mounting plate left and right and going forward and backward at the rear and lower part of the left front turning hole; the right mounting plate A right front down turn hole is opened directly to the right of the left front down turn hole, and a right front up turn hole is opened on the right side of the left front up turn hole on the right mounting plate. The right side of the left slot is provided with a right slot that runs through the right mounting plate left and right and is in a forward and backward direction. Fixed connection, the right end of the rear sleeve rod of the tension spring is fixedly connected to the left side wall of the rear part of the right mounting plate, and the connecting plate rotating frame includes a connecting plate, a left support plate and a right support plate, and the connecting plate The board is placed vertically and left and right, the left and right ends of the connecting board are fixedly connected with the front upper end of the left support board and the front upper end of the right support board respectively, and the front lower part of the left support board is provided with The left front shaft hole, the left rear shaft hole is opened at the rear lower part of the left support plate, the right front shaft hole is opened at the right side of the left front shaft hole in the right support plate, and the right front shaft hole is opened at the right side of the left front shaft hole. A right rear axle hole is opened on the right side of the rear axle hole, and the front part of the front swivel bracket is placed between the left support plate and the right support plate. The left and right ends are respectively rotatably connected in the left front shaft hole and the right front shaft hole, the rear part of the front swivel bracket is placed between the left mounting plate and the right mounting plate, and the front swivel The left and right ends of the rear part of the bracket are respectively rotatably connected to the left front lower turning hole and the right front lower turning hole, and the middle rotating bracket includes a left side plate, a right side plate and a rear connecting plate, and the left side The plates are placed vertically and move forward and backward, the right side plate and the left side plate are parallel to each other and are located directly to the right of the left side plate, the left and right ends of the rear connecting plate are respectively connected to the left side plate and the right side plate are fixedly connected, the upper rear part of the left side plate is provided with an upper left rear axle hole, and the right side plate is provided with an upper right rear axle hole directly to the right of the left upper rear axle hole, so The lower front part of the middle rotating bracket is placed between the left branch and the right supporting board, the front lower part of the left side board is placed on the right side of the left supporting board and is located in the front rotating bracket the left side of the left side, the front lower part of the left side plate is rotatably connected in the left rear shaft hole, the front lower part of the right side plate is placed on the left side of the right support plate and is located at the front swivel bracket On the right side, the front lower part of the right side plate is rotatably connected to the right rear shaft hole, the upper rear part of the middle rotating bracket is placed between the left mounting plate and the right mounting plate, The left and right ends of the upper and rear part of the intermediate rotating bracket are respectively rotatably connected to the left front up-turning hole and the right front up-turning hole, and the left upper-rear shaft hole is located at the rear and lower side of the left front up-turning hole. The upper right rear shaft hole is located at the rear and lower part of the right front upper rotation hole, and the rear rotation bracket includes a left support block, a right support block and a connecting support block, the left support block is placed vertically and moves forward and backward, the The right support block and the left support block are parallel to each other and located directly to the right of the left support block, and the left and right ends of the connecting support block are fixedly connected with the left support block and the right support block respectively, so The rear end of the left support block is provided with a left rear rotation hole, and the rear end of the right support block is provided with a right rear rotation hole directly to the right of the left rear rotation hole, and the left support block is located on the left side The right side of the board is connected to the upper left rear shaft hole in rotation, the right support block is located on the left side of the right side board and connected to the upper right rear shaft hole in rotation, and the rear shaft of the rear rotation bracket The left end rotates and inserts through the left rear rotation hole and slides left and right in the left slot hole, and the right end of the rear rotating shaft of the rear rotation bracket rotates and inserts through the right rear rotation hole and slides left and right Inserted in the right slot, the connecting support block is facing the rear rotating shaft of the rear rotating bracket with a hook gap, and the front end of the extension spring is elastically hooked on the rear rotating shaft of the rear rotating bracket , the rear end of the extension spring is elastically sleeved on the rear sleeve rod of the extension spring. 2. The multi-pivot opening and closing variable axis hinge according to claim 1, characterized in that: the front part of the left end of the middle connecting plate extends horizontally to the left to form a left mounting block, and the front part of the right end of the middle connecting plate Extend horizontally to the right to form a right mounting block. 3. The multi-pivot opening and closing variable axis hinge according to claim 1, characterized in that it further comprises a first front rotating rivet and a first rear rotating rivet, and the front rotating bracket includes a front rotating part and a rear rotating part and the middle rib, the front swivel part is placed horizontally from left to right, and the front swivel part is cylindrical with a front installation gap on the upper part, the rear swivel part is placed horizontally from left to right, and The rear rotating part is in the shape of a cylinder with a rear installation gap on the upper part, the middle reinforcing rib is curved upwards, and the front end of the middle reinforcing rib is fixedly connected to the upper part of the front rotating part on the front Install the front side of the notch, the rear end of the middle reinforcing rib is fixedly connected to the upper part of the rear rotating part on the rear side of the front mounting notch, the first front rotary rivet is placed horizontally on the left and right, the first front The rotating rivet is inserted through the center hole of the front screw joint, and the left and right ends of the first front rotating rivet are fixedly inserted in the left front shaft hole and the right front shaft hole respectively. The rear rotating rivets are horizontally placed left and right, the first rear rotating rivet is inserted through the central hole of the rear rotating part, and the left and right ends of the first rear rotating rivet are fixedly inserted in the left front lower rotating hole respectively And in the said right front down turn hole. 4. The multi-pivot opening and closing variable axis hinge according to claim 1, further comprising a second rear rotating rivet, the front end of the left support block is provided with a front left rotation axis hole, and the front end of the right support block is A front right rotation shaft hole is opened directly to the right of the front left rotation shaft hole, and the left end of the second rear rotation rivet is fixedly inserted through the front left rotation shaft hole and rotated in the upper left rear shaft hole Among them, the right end of the second rear rotating rivet is fixedly inserted through the front right rotating shaft hole and rotated and inserted in the upper right rear shaft hole. 5. The multi-pivot opening and closing variable axis hinge according to claim 1, characterized in that: the left and right ends of the rear connecting plate are fixedly connected to the top of the left side plate and the top of the right side plate respectively . 6. The multi-pivot opening and closing variable axis hinge according to claim 1, characterized in that: the left and right ends of the connecting support block are respectively fixedly connected to the top of the left support block and the top of the right support block .

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