CN214790143U

CN214790143U - Hinge structure and cantilever support with same

Info

Publication number: CN214790143U
Application number: CN202121123394.1U
Authority: CN
Inventors: 唐群英
Original assignee: Ningbo Teliyin Technology Co ltd
Current assignee: Ningbo Teliyin Technology Co ltd
Priority date: 2021-05-24
Filing date: 2021-05-24
Publication date: 2021-11-19
Anticipated expiration: 2031-05-24

Abstract

The utility model relates to an articulated structure and have this articulated structure's cantilever crane relates to the field of support, and it includes first connection piece, second connection piece, friction piece and extrusion subassembly, the friction piece one-to-one is pegged graft in the one end of armed lever, and the one end of armed lever is passed through the driving piece and is articulated between first connection piece and second connection piece, the driving piece has a double-screw bolt, the double-screw bolt of driving piece runs through in proper order behind the one end of first connection piece, friction piece and armed lever with the one end of second connection piece threaded connection in order to order about first connection piece and the tight armed lever of second connection, the extrusion subassembly is located first connection piece with between the second connection piece and under the driving piece about extrusion friction piece. This application has the effect of widening cantilever's application range.

Description

Hinge structure and cantilever support with same

Technical Field

The application relates to the field of supports, in particular to a hinge structure and a cantilever support with the hinge structure.

Background

The cantilever support is mainly used for clamping electronic equipment such as a microphone and a mobile phone, and one end of the cantilever support, which is used for clamping the electronic equipment, needs to be positioned at different positions in the using process, so that the connection structure of joints between cantilevers is more critical and needs to have better friction force.

The joints of the existing cantilever support are connected through screws and nuts, each cantilever mainly provides supporting force through a spring to realize positioning, and if the gravity of a clamped object is much larger than the bearing force of the spring, the situation of unstable shaking exists, namely the application range of the cantilever support is limited.

SUMMERY OF THE UTILITY MODEL

In order to widen the application range of the cantilever support, the application provides a hinge structure and a cantilever support with the hinge structure.

The application provides a cantilever adopts following technical scheme:

in a first aspect, the present application provides a hinge structure, which adopts the following technical solution:

the utility model provides a hinge structure for connect at least one armed lever, includes first connection piece, second connection piece, friction piece and extrusion subassembly, the friction piece one-to-one is pegged graft in the one end of armed lever, and the one end of armed lever articulates between first connection piece and second connection piece through the driving piece, the driving piece has a double-screw bolt, the double-screw bolt of driving piece run through in proper order behind the one end of first connection piece, friction piece and armed lever with the one end of second connection piece clamp arm lever in order to order about first connection piece and second connection piece, the extrusion subassembly is located first connection piece with between the second connection piece and extrude the friction piece under the order about of driving piece.

Through adopting above-mentioned technical scheme, when screwing up the driving piece, extrusion subassembly extrusion friction member to resistance when increasing the relative first connection piece of armed lever and second connection piece rotation increases the bearing capacity of armed lever, and then widens cantilever support's application range.

Optionally, the compression assembly comprises a first clamp member and a second clamp member;

the first clamping piece is fixed on one side, close to the second connecting piece, of the first connecting piece, the first clamping piece is sleeved on the outer side of the stud of the driving piece, a first clamping surface is arranged on one side, far away from the first connecting piece, of the first clamping piece, the outer diameter of the first clamping surface is gradually reduced from the first connecting piece to the second connecting piece, and the friction piece is provided with a first adapting surface adapted to the first clamping surface;

the second clamping piece is fixed on one side, close to the first connecting piece, of the second connecting piece, the second clamping piece is in threaded connection with the stud of the driving piece, a second clamping surface is arranged on one side, far away from the second connecting piece, of the second clamping piece, the outer diameter of the second clamping surface is gradually decreased from the first connecting piece to the second connecting piece, and the friction piece is provided with a second adaptive surface matched with the second clamping surface.

Through adopting above-mentioned technical scheme, when screwing up the driving piece for first clamp surface closely laminates with first adaptation face, and the second presss from both sides the tight laminating of face and second adaptation face, has increased the resistance when the relative first connecting piece of armed lever rotates, increases the bearing capacity of armed lever, and then widens cantilever support's application range.

In a second aspect, the present application provides a cantilever support, which adopts the following technical scheme:

a cantilever support, comprising:

a base;

a first bracket including at least one first arm;

a second bracket including at least one second arm; and

the hinge structure as described above;

wherein one end of the first bracket is hinged with the base through a hinge structure according to claim, and one end of the second bracket is hinged with the other end of the first bracket through a hinge structure according to claim.

Through adopting above-mentioned technical scheme, the joint between first support, second support and the base is articulated through above-mentioned hinge structure, and resistance when having increased joint spare relative rotation increases the bearing capacity of armed lever, and then widens cantilever support's application range.

Optionally, the first support comprises two first arm levers, and the two first arm levers are parallel to each other;

the second support comprises two second arm rods, and the two second arm rods are parallel to each other.

By adopting the technical scheme, the two first arm levers have stronger bearing capacity relative to one first arm lever; the two second arm levers have stronger bearing capacity relative to one second arm lever; the two first arms and the two second arms are parallel to each other, so that the first arms and the second arms can be folded together in parallel when the cantilever support is not used.

Optionally, the swing arm further comprises at least one first elastic piece enabling the other end of the first arm to keep a trend of swinging upwards, the first support is connected with the hinge structure between the bases and one end of the first elastic piece, and the other end of the first elastic piece is connected with the middle of the first arm.

Through adopting above-mentioned technical scheme, the setting of first elastic component provides the holding power for first armed lever can bear bigger power and be difficult for the downswing, has improved the stability when cantilever support uses.

Optionally, the first elastic element is accommodated in the first arm rod, and the first arm rod is provided with a first penetrating groove for allowing one end of the first elastic element to penetrate out.

Through adopting above-mentioned technical scheme, the other end of first elastic component is accomodate in first armed lever, has reduced cantilever support's occupation scope.

Optionally, the device further comprises at least one second elastic piece which enables the other end of the second arm rod to keep a trend of swinging upwards, the hinge structure between the first bracket and the second bracket is connected with one end of the second elastic piece, and the other end of the second elastic piece is connected with the middle part of the second arm rod.

Through adopting above-mentioned technical scheme, the setting of second elastic component provides the holding power for the second armed lever can bear bigger power and be difficult for the downswing, stability when having improved cantilever support and using.

Optionally, the second elastic element is accommodated in the second arm rod, and the second arm rod is provided with a second penetrating groove for allowing one end of the second elastic element to penetrate out.

Through adopting above-mentioned technical scheme, the other end of second elastic component is accomodate in the second armed lever, has reduced cantilever support's occupation scope.

Optionally, the base includes a sleeve and a damping tube, the hinge structure between the first bracket and the base has a rotating shaft, the rotating shaft is inserted into the damping tube and is rotatably connected to the damping tube, and the damping tube is inserted into the sleeve and is rotatably connected to the sleeve;

and the side wall of the damping tube is provided with a allowance groove which ensures that the damping tube keeps a shrinkage allowance.

By adopting the technical scheme, the rotating shaft is rotatably connected in the sleeve through the damping pipe, so that the first support is not easy to rotate relative to the sleeve during non-manual operation, and the stability of the cantilever support during use is improved; the setting in surplus groove for when the damping tube was pegged graft in the cover pipe, the damping tube can inwards shrink, and then makes the lateral wall of damping tube closely laminate with the sheathed tube inside wall, and the inside wall of damping tube closely laminates with the lateral wall of axis of rotation, makes the axis of rotation be difficult for taking place to rock relatively with the sleeve pipe, has improved the stability when cantilever crane uses.

Optionally, still including being fixed in the centre gripping subassembly on the base, the centre gripping subassembly is fixed in including deciding splint, one end connecting plate on the splint, being fixed in the backup pad of the connecting plate other end, locating the backup pad is close to decide splint and threaded connection that move of splint one side in the backup pad and one end with it is fixed in order to order about to move splint the cooperation of the splint the screw rod that decides the splint presss from both sides tightly.

Through adopting above-mentioned technical scheme, rotate the screw rod and order about moving splint to the removal that is close to the fixed splint direction for move on splint and the fixed splint cooperation centre gripping are fixed in the plate, in order to fix cantilever support, easy dismounting has improved the convenience that cantilever support used.

Drawings

Fig. 1 is a schematic structural view of a cantilever according to embodiment 1 of the present application.

Fig. 2 is a side view of the hinge structure of embodiment 1 of the present application.

Fig. 3 is a cross-sectional view a-a of fig. 2.

Fig. 4 is a partially exploded view of the hinge structure and the base according to embodiment 1 of the present application.

Fig. 5 is a schematic structural view of a clamping assembly according to embodiment 1 of the present application.

Fig. 6 is a schematic structural view of a cantilever according to embodiment 2 of the present application.

Description of reference numerals: 100. a hinge structure; 101. a first connecting piece; 1011. a first clamping member; 1012. a first clamping surface; 1013. a suspension post; 102. a second connecting sheet; 1021. a second clamping member; 1022. a second clamping surface; 103. a friction member; 1031. a first mating surface; 1032. a second mating surface; 104. a drive member; 105. a rotating shaft; 200. a base; 201. a sleeve; 202. a damper tube; 2021. a residue tank; 203. a base plate; 204. a decorative base; 300. a first bracket; 301. a first arm; 3011. a first through groove; 400. a second bracket; 401. a second arm; 4011. perforating holes; 4012. a second through groove; 600. a second elastic member; 500. a first elastic member; 700. a clamping assembly; 701. fixing the clamping plate; 702. a connecting plate; 703. a support plate; 704. a movable clamping plate; 705. a screw; 7051. a sliding hole; 706. a holding rod; 707. and a limiting member.

Detailed Description

The present application is described in further detail below with reference to figures 1-6.

Example 1:

the embodiment of the application discloses cantilever. Referring to fig. 1, the cantilever stand includes a base 200, a first stand 300, a second stand 400, a hinge structure 100, and a clamping assembly 700. The base 200 may be directly fixed to the panel by screws 104, etc., or may be clamped and fixed to the panel by the clamping assembly 700, and the base 200 is described herein as being clamped and fixed to the panel by the clamping assembly 700. The hinge structure 100 is used for connecting at least one arm, the lower end of the first support 300 is rotatably connected to the base 200 through the hinge structure 100, the upper end of the first support 300 is hinged to one end of the second support 400 through the hinge structure 100, and the other end of the second support 400 is used for connecting an electronic device, so as to provide support for the electronic device.

Referring to fig. 2 and 3, the hinge structure 100 includes a first connecting piece 101, a second connecting piece 102, a driving piece 104, a friction piece 103, and a pressing assembly. The driving member 104 may be a screw or a bolt, and in this embodiment, the driving member 104 is described by taking a screw as an example. The second bracket 400 includes at least one second arm 401. When the hinge structure 100 is connected with a second arm 401, the first connecting piece 101 and the second connecting piece 102 are respectively disposed at two sides of one end of the second arm 401, and the stud of the driving piece 104 sequentially penetrates through one ends of the first connecting piece 101 and the second arm 401 and then is in threaded connection with the second connecting piece 102, so as to drive the first connecting piece 101 and the second connecting piece 102 to clamp one end of the second arm 401.

The friction member 103 is inserted into one end of the second arm 401, and the friction member 103 may be made of rubber or plastic. The squeezing component is arranged between the first connecting piece 101 and the second connecting piece 102 and is used for squeezing the friction piece 103 to increase the resistance of the second arm lever 401 in rotating relative to the first connecting piece 101 and the second connecting piece 102, so that the second arm lever 401 can support heavier objects.

In one embodiment, the squeezing assembly includes a first clamping element 1011, the first clamping element 1011 is fixed on one side of the first connecting piece 101 close to the second connecting piece 102, the first clamping element 1011 is sleeved on the outer side of the stud of the driving piece 104, a through hole 4011 is formed in the side wall of the second arm 401 abutted to the first connecting piece 101, the through hole 4011 is provided for the first clamping element 1011 to pass through, and the first clamping element 1011 passes through the through hole 4011 and then abuts to one side of the friction element 103. The side of the first clamping element 1011 near the second connecting piece 102 has a first clamping surface 1012, the diameter of the first clamping surface 1012 decreases from the first connecting piece 101 to the second connecting piece 102, the first clamping surface 1012 may be a conical surface, or an arc surface that is concave or convex, in this embodiment, the first clamping surface 1012 is described by taking a conical surface as an example; the friction element 103 has a first mating surface 1031 which mates with the first clamping surface 1012. When the driving member 104 is screwed, the first clamping member 1011 presses the friction member 103 to deform the friction member 103, so that the first clamping surface 1012 is tightly attached to the first adapting surface 1031, thereby increasing the resistance of the second arm 401 to rotate relative to the first connecting piece 101.

In another embodiment, the pressing assembly includes a second clamping member 1021, the second clamping member 1021 is fixed to one side of the second connecting piece 102 close to the first connecting piece 101, a through hole 4011 is formed in a side wall of the second arm 401 abutting against the second connecting piece 102, the through hole 4011 is used for the second clamping member 1021 to pass through, the second clamping member 1021 passes through the through hole 4011 and then abuts against the other side of the friction member 103, and the second clamping member 1021 is in threaded connection with the stud of the driving member 104. The side of the second clamping member 1021 near the first connecting piece 101 has a second clamping surface 1022, the diameter of the second clamping surface 1022 decreases from the second connecting piece 102 to the first connecting piece 101, the second clamping surface 1022 may be a tapered surface, or an arc surface that is concave or convex, in this embodiment, the second clamping surface 1022 is described as a tapered surface, and the friction member 103 has a second mating surface 1032 that mates with the second clamping surface 1022. When the driving member 104 is screwed, the second clamping member 1021 presses the friction member 103 to deform the friction member 103, so that the second clamping surface 1022 and the second adapting surface 1032 are tightly attached to each other, and the resistance of the second arm 401 to rotate relative to the first connecting piece 101 and the second connecting piece 102 is increased.

In another embodiment, the pressing assembly includes the first clamping member 1011 and the second clamping member 1021 as described above, and the detailed structure thereof is not described herein. When the driving element 104 is screwed, the first clamping element 1011 and the second clamping element 1021 are close to two sides of the clamping friction element 103 to drive the friction element 103 to deform, so that the first clamping surface 1012 is tightly attached to the first adapting surface 1031, and the second clamping surface 1022 is tightly attached to the second adapting surface 1032, thereby further increasing the resistance of the second arm lever 401 in rotating relative to the first connecting piece 101 and the second connecting piece 102.

Referring to fig. 1 and 3, the first support 300 includes at least one first arm 301, and the second support 400 includes at least one second arm 401, and the first arm 301 extends obliquely from the base 200 to the upper left in the direction indicated by the arrow X and the direction indicated by the arrow Y. When the number of the first arm lever 301 and the second arm lever 401 is one, the lower end of the first arm lever 301 is hinged to the base 200 through a hinge structure 100, the upper end of the first arm lever 301 is hinged to one end of the second arm lever 401 through two hinge structures 100, and the two hinge structures 100 share one first connecting piece 101 and one second connecting piece 102.

When the number of the first arm levers 301 and the number of the second arm levers 401 are two, the lower ends of the two first arm levers 301 are hinged together through two hinge structures 100, and the two hinge structures 100 share one first connecting sheet 101 and one second connecting sheet 102; the upper ends of the two first arm rods 301 are hinged with one ends of the two second arm rods 401 through four hinge structures 100, and the hinge structures 100 of the four hinge structures 100 share one first connecting piece 101 and one second connecting piece 102; the other ends of the two second arms 401 are hinged together through two hinge structures 100, the two hinge structures 100 share one first connecting piece 101 and one second connecting piece 102, the two hinge structures 100 are connected with the electronic device to provide support for the electronic device, the two first arms 301 and the four corresponding hinge points form a parallelogram, and the two second arms 401 and the four corresponding hinge points form a parallelogram.

When the number of the first arm levers 301 is two, and the number of the second arm levers 401 is one, the lower ends of the two first arm levers 301 are hinged together through two hinge structures 100, and the two hinge structures 100 share one first connecting sheet 101 and one second connecting sheet 102; the upper ends of two first arm levers 301 are hinged with one end of a second arm lever 401 through three hinge structures 100, the three hinge structures 100 share a first connecting sheet 101 and a second connecting sheet 102, and the other end of the second arm lever 401 is used for connecting electronic equipment. In the present embodiment, the number of the first arm 301 and the second arm 401 is two.

In order to improve the load-bearing capacity of the cantilever, the cantilever further includes at least one first elastic member 500, the first elastic member 500 may be a tension spring, or an elastic rope, and in this embodiment, the tension spring is taken as an example for the first elastic member 500. When the quantity of extension spring was one, the one end of extension spring was hung in the middle part of a first armed lever 301 length direction through the pin, and the other end of extension spring hangs on the first connecting piece 101 between base 200 and first armed lever 301 through the pin, and the other end of extension spring is located the right side of extension spring for first armed lever 301 provides the pulling force, makes the upper end of first armed lever 301 keep the trend of ascending to the upper right. The outer side wall of the pin is provided with a suspension groove for embedding and suspending two ends of the tension spring. When the number of the tension springs is two, the two tension springs are symmetrically arranged on two sides of the first arm lever 301. When the number of the tension springs is three, two of the tension springs are arranged on one side of the first arm lever 301, and the other tension spring is arranged on the other side of the first arm lever 301. The number of the first elastic members 500 in the present embodiment is described by taking two as an example.

In order to improve the load-bearing capacity of the cantilever support, the cantilever support further includes at least one second elastic member 600, the second elastic member 600 may be a tension spring or an elastic rope, and the tension spring is exemplified as the second elastic member 600 in this embodiment. When the quantity of extension spring is one, the one end of extension spring is hung in the middle part of a second armed lever 401 length direction through the pin, the other end of extension spring is hung on first connecting piece 101 between second armed lever 401 and first armed lever 301 through the pin, the other end of extension spring is higher than the one end of extension spring, for second armed lever 401 provides pulling force, make the other end of second armed lever 401 keep having the trend of upwards lifting, make the other end of second armed lever 401 can bear heavier electronic equipment. The outer side wall of the pin is provided with a suspension groove for embedding and suspending two ends of the tension spring, so that the two ends of the tension spring are not easy to slide off the pin. When the number of the tension springs is two, the two tension springs are symmetrically arranged on two sides of the second arm lever 401. When the number of the tension springs is three, two of the tension springs are disposed on one side of the second arm 401, and the other tension spring is disposed on the other side of the second arm 401. The number of the second elastic members 600 in this embodiment is described by taking two as an example.

Referring to fig. 4, the base 200 includes a sleeve 201 and a damping tube 202. The hinge structure 100 at the lower end of the first arm 301 has a rotating shaft 105, the rotating shaft 105 is inserted into the damping tube 202, the rotating shaft 105 is rotatably connected to the damping tube 202, and the damping tube 202 is inserted into the sleeve 201 and rotatably connected to the sleeve 201, so as to rotatably connect the first arm 301 to the sleeve 201. The damping tube 202 may be made of rubber or plastic, and in the present embodiment, the damping tube 202 is described as being made of plastic.

In order to prevent the rotating shaft 105 from shaking relative to the sleeve 201 when the rotating shaft 105 is inserted into the sleeve 201, the sidewall of the damping tube 202 is provided with a margin groove 2021, so that the damping tube 202 can contract inward to be tightly attached to the inner sidewall of the sleeve 201 and the outer sidewall of the rotating shaft 105 when inserted into the sleeve 201.

The base 200 further includes a decoration base 204, the decoration base 204 is sleeved outside the sleeve 201, and the decoration base 204 is fixed to the sleeve 201 in an inserting manner to increase the contact area between the base 200 and the fixing surface.

Referring to fig. 4 and 5, the clamping assembly 700 includes a stationary clamping plate 701, a connecting plate 702, a support plate 703, a movable clamping plate 704, and a screw 705. The fixing plate 701 is fixed to the lower side of the sleeve 201, the fixing plate 701 and the sleeve 201 may be welded or integrally formed by die casting, and the decorative base 204 is fixed to the upper side of the fixing plate 701 by screws. In order to make the damping tube 202 not easy to slide up and down in the sleeve 201, a bottom plate 203 is further fixed to the lower end of the damping tube 202, and the bottom plate 203 is fixed to the fixing plate 701 by screws. One end of connecting plate 702 is fixed in the one side of deciding splint 701, the other end downwardly extending of connecting plate 702 sets up, the other end of connecting piece is fixed in to backup pad 703, backup pad 703 and deciding splint 701 are located the same side of connecting plate 702, it is located between deciding splint 701 and backup pad 703 to move splint 704, screw 705 runs through backup pad 703 and with backup pad 703 threaded connection, the upper end of screw 705 is fixed with moving splint 704, can drive through rotating screw 705 and make splint 704 be close to deciding splint 701 or keep away from deciding splint 701, in order to realize fixing base 200 centre gripping on the plate, or pull down base 200 from the plate.

In order to conveniently rotate the screw 705 by a bare hand, the clamping assembly 700 further comprises a holding rod 706, a sliding hole 7051 is formed in the lower end of the screw 705, the axis of the sliding hole 7051 is perpendicular to the axis of the screw 705, and the holding rod 706 penetrates through the sliding hole 7051 and is connected with the screw 705 in a sliding manner, so that the holding rod 706 can be conveniently rotated to avoid a narrow space. In order to make the holding rod 706 not easily slip off from the screw 705, a limiting member 707 is further fixed to both ends of the holding rod 706, and the size of the limiting member 707 is larger than the diameter of the sliding hole 7051, in this embodiment, the limiting member 707 is described as a sphere.

The implementation principle of the cantilever support in the embodiment of the application is as follows: the joint of the cantilever support is hinged through the hinge structure 100, when the driving piece 104 of the hinge structure 100 is screwed, the first clamping piece 1011 and the second clamping piece 1021 are close to each other to squeeze the friction piece 103 so as to drive the friction piece 103 to generate elastic deformation, so that the first clamping surface 1012, the first adapting surface 1031, the second clamping surface 1022 and the second adapting surface 1032 are tightly attached, the friction resistance when the joints rotate is increased, the cantilever support can support electronic equipment with larger gravity, and meanwhile, the electronic equipment is not easy to shake when being clamped and used through the cantilever support.

Example 2:

the difference from embodiment 1 is that, referring to fig. 6, the number of the second elastic elements 600 and the number of the first elastic elements 500 are both one, the first elastic elements 500 can be received in the first arm 301, and the second elastic elements 600 can be received in the second arm 401, so as to reduce the space occupied by the cantilever.

A first through groove 3011 is formed in one side of the first arm 301 close to the base 200, one end of the first elastic element 500 is suspended in the middle of the first arm 301 through a pin, the other end of the first elastic element 500 can penetrate out of the first arm 301 through the first through groove 3011, and a suspension column 1013 for suspending the other end of the first elastic element 500 is arranged on the first connection plate 101 between the first arm 301 and the base 200.

A second penetrating groove 4012 is formed in one side, close to the first arm lever 301, of the second arm lever 401, one end of the second elastic element 600 is hung in the middle of the second arm lever 401 through a pin, the other end of the second elastic element 600 can penetrate out of the second arm lever 401 through the second penetrating groove 4012, and a hanging column 1013 for hanging the other end of the second elastic element 600 is arranged on the first connecting piece 101 between the second arm lever 401 and the first arm lever 301.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, 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 hinge structure for connecting at least one arm, characterized by comprising a first connecting piece (101), a second connecting piece (102), a friction piece (103) and a squeezing assembly, the friction pieces (103) are correspondingly inserted into one end of the arm rod one by one, one end of the arm rod is hinged between the first connecting piece (101) and the second connecting piece (102) through the driving piece (104), the driving part (104) is provided with a stud, the stud of the driving part (104) sequentially penetrates through the first connecting plate (101), the friction part (103) and one end of the arm rod and then is in threaded connection with the second connecting plate (102) so as to drive the first connecting plate (101) and the second connecting plate (102) to clamp one end of the arm rod, the pressing component is arranged between the first connecting piece (101) and the second connecting piece (102) and presses the friction piece (103) under the driving of the driving piece (104).

2. A hinge structure according to claim 1, wherein: the compression assembly includes a first clamp member (1011) and a second clamp member (1021);

the first clamping piece (1011) is fixed on one side, close to the second connecting piece (102), of the first connecting piece (101), the first clamping piece (1011) is sleeved on the outer side of the stud of the driving piece (104), one side, far away from the first connecting piece (101), of the first clamping piece (1011) is provided with a first clamping surface (1012), the outer diameter of the first clamping surface (1012) is gradually reduced from the first connecting piece (101) to the second connecting piece (102), and the friction piece (103) is provided with a first adapting surface (1031) adapted to the first clamping surface (1012);

the second clamping piece (1021) is fixed on one side, close to the first connecting piece (101), of the second connecting piece (102), the second clamping piece (1021) is in threaded connection with the stud of the driving piece (104), one side, far away from the second connecting piece (102), of the second clamping piece (1021) is provided with a second clamping surface (1022), the outer diameter of the second clamping surface (1022) is gradually reduced from the first connecting piece (101) to the second connecting piece (102), and the friction piece (103) is provided with a second adapting surface (1032) adapted to the second clamping surface (1022).

3. A outrigger, comprising:

a base (200);

a first bracket (300) comprising at least one first arm (301);

a second carriage (400) comprising at least one second arm (401); and

-a hinge structure (100) according to any one of claims 1-2;

wherein one end of the first bracket (300) is hinged with the base (200) by the hinge structure (100) of claim 1, and one end of the second bracket (400) is hinged with the other end of the first bracket (300) by the hinge structure (100) of claim 1.

4. A outrigger as claimed in claim 3, wherein: the first bracket (300) comprises two first arm levers, and the two first arm levers (301) are parallel to each other;

the second bracket (400) comprises two second arm rods (401), and the two second arm rods (401) are parallel to each other.

5. A outrigger as claimed in claim 3 or 4 wherein: the first arm rod (301) is provided with at least one first elastic piece (500) enabling the other end of the first arm rod (301) to keep a trend of swinging upwards, the first support (300) is connected with the hinged structure (100) between the bases (200) and one end of the first elastic piece (500), and the other end of the first elastic piece (500) is connected with the middle of the first arm rod (301).

6. A outrigger as claimed in claim 5, wherein: the first elastic piece (500) is accommodated in the first arm lever (301), and the first arm lever (301) is provided with a first through groove (3011) for one end of the first elastic piece (500) to penetrate out.

7. A outrigger as claimed in claim 3 or 4 wherein: the device further comprises at least one second elastic piece (600) enabling the other end of the second arm rod (401) to keep a tendency of swinging upwards, a hinge structure (100) between the first support (300) and the second support (400) is connected with one end of the second elastic piece (600), and the other end of the second elastic piece (600) is connected with the middle of the second arm rod (401).

8. The outrigger of claim 7, wherein: the second elastic piece (600) is accommodated in the second arm lever (401), and the second arm lever (401) is provided with a second penetrating groove (4012) for allowing one end of the second elastic piece (600) to penetrate out.

9. A outrigger as claimed in claim 3, wherein: the base (200) comprises a sleeve (201) and a damping tube (202), the hinge structure (100) between the first bracket (300) and the base (200) is provided with a rotating shaft (105), the rotating shaft (105) is inserted into the damping tube (202) and is rotatably connected with the damping tube (202), and the damping tube (202) is inserted into the sleeve (201) and is rotatably connected with the sleeve (201);

the side wall of the damping tube (202) is provided with a surplus groove (2021) which keeps the damping tube (202) with shrinkage allowance.

10. A outrigger as claimed in claim 3, wherein: the clamping device is characterized by further comprising a clamping assembly (700) fixed on the base (200), wherein the clamping assembly (700) comprises a fixed clamping plate (701), a connecting plate (702) with one end fixed on the fixed clamping plate (701), a supporting plate (703) fixed at the other end of the connecting plate (702), a movable clamping plate (704) arranged on one side, close to the fixed clamping plate (701), of the supporting plate (703) and a screw (705) which is in threaded connection with the supporting plate (703) and is fixed with the movable clamping plate (704) so as to drive the movable clamping plate (704) to be matched with the fixed clamping plate (701) to clamp.