WO2017113496A1

WO2017113496A1 - Angle adjusting device

Info

Publication number: WO2017113496A1
Application number: PCT/CN2016/074613
Authority: WO
Inventors: 郑春华
Original assignee: 深圳市鑫宝临五金有限公司
Priority date: 2015-12-28
Filing date: 2016-02-26
Publication date: 2017-07-06
Also published as: CN205578494U

Abstract

An angle adjusting device, including a first support structure (10) and a second support structure (20) and a gear member (30) positioned therebetween. The gear member (30) can rotate inside the first support structure (10) and the second support structure (20). A wedge-shaped space (40) is formed at one side of the first support structure (10) and the second support structure (20), and a gear block (50) is disposed inside the wedge-shaped space (40). The gears on the gear block (50) match the gear member (30). The gear block is provided with a first fixed shaft (51) extending through the gear block. Both ends of the first fixed shaft (51) extend respectively into a first elongated blind hole (431) and a second elongated blind hole (441). An elastic member (61) is also provided inside the wedge-shaped space (40) and pushes the gear block towards the location of the gear member. In the angle adjusting device, since both ends of the first fixed shaft are in the first elongated blind hole and the second elongated blind hole, respectively, the device prevents debris from entering the first fixed shaft, avoiding unstable and uneven operation of the angle adjustment.

Description

Angle adjusting device

[0001] The present invention relates to an angle adjusting device, and more particularly to an angle adjusting device that is stable and reliable in operation.

[0002] More and more furniture backrests now have a tilt adjustment function, especially a sofa. The back of the sofa needs to be adjusted according to the user's needs in many cases, thus improving the comfort of the sofa. A dedicated angle-adjustable hinge has been designed to achieve this. A Chinese utility model patent with the authorization number CN203655881 U disclosed a new type of hinge on June 18, 2014, comprising: a torus provided with a gear portion and a polygonal central hole, each side of the gear portion Provided with a convex portion with respect to the gear portion, the annular body is externally connected with a handle through the polygonal central hole; a handle bracket coupled with the gear portion, the handle bracket and the gear portion joint end are provided with a wedge-shaped notch, the wedge-shaped notch The inner side is provided with a spring card slot, and the handle bracket and the annular body are fixedly connected by a front end cover plate and a rear end cover plate provided with central holes on both sides, and a movable wedge-shaped member is disposed in the wedge-shaped notch, and the wedge-shaped member is The contact surface of the gear portion is a matching tooth surface, and the other surface is in contact with the inclined surface of the wedge-shaped notch, and the bottom portion is in contact with the elastic piece disposed in the elastic chip slot, and the rebound force is generated when the movable wedge member presses the elastic piece. This new type of hinge realizes the tilt adjustment of the sofa backrest, but the pin in the new type of hinge directly contacts the outside world, which causes the foreign matter to enter and affect the movement of the pin, so that the hinge may not operate smoothly. .

technical problem

[0003] There is a need for an angle adjustment device that operates stably and smoothly.

Problem solution

Technical solution

The technical problem to be solved by the present invention is to provide an angle adjusting device that operates stably and smoothly.

In order to solve the above technical problem, the technical solution of the present invention is: an angle adjusting device including a first supporting structure and a second supporting structure and a gear member disposed therebetween, the gear member may be in the Rotating within the first support structure and the second support structure, the first support structure and the second support One side of the structure forms a wedge-shaped space, and the wedge-shaped space includes a top side of the opening angle, a lower side of the opening angle, and left and right sides on the left and right sides of the lower side of the opening angle, and the gear is disposed in the wedge-shaped space a gear on the gear block that cooperates with the gear member, the tongue of the wedge-shaped space faces the gear member, and the gear block is provided with a first fixed shaft penetrating the gear block, the key is a first elongated blind hole and a second elongated blind hole are oppositely disposed on the left side surface and the right side surface, and two ends of the first fixed shaft respectively extend into the first length a strip-shaped blind hole and the second elongated blind hole are further disposed in the wedge-shaped space by pushing the two ends of the first fixed shaft respectively in the first elongated blind hole and the The second elongated blind hole moves to push the gear block toward the elastic member in a direction in which the gear member is located.

[0006] As a modification of the present invention, the gear block is further provided with a second fixed shaft penetrating the gear block, and the left side surface and the right side surface are further provided with a third elongated strip shape. a blind hole and a fourth elongated blind hole, wherein two ends of the second fixed shaft respectively extend into the third elongated blind hole and the fourth elongated blind hole, and the elastic member is Pushing both ends of the first fixed shaft into the first elongated blind hole and the second elongated blind hole respectively to push the two ends of the second fixed shaft respectively in the The third elongated blind hole and the fourth elongated blind hole move.

[0007] As a second modification of the present invention, the first support structure or the second support structure includes an intermediate support member, and the intermediate support member is provided with a through hole for accommodating the gear member, the through hole One side is the wedge-shaped space, the wedge-shaped space is continuous with the through hole, and a left side fixing plate and a right side fixing plate are respectively disposed on the left and right sides of the intermediate supporting member, and the first elongated strip is blind The hole and the third elongated blind hole are disposed on the left fixing plate, and the second elongated blind hole and the fourth elongated blind hole are disposed on the right fixing plate. The left side surface of the left fixing plate is disposed with a first elongated protrusion having a shape similar to that of the first elongated blind hole corresponding to an area where the first elongated blind hole is located, The left side fixing plate is further provided with a left reinforcing plate, and the left reinforcing plate is further disposed at a position corresponding to the first elongated protrusion to accommodate the first elongated protrusion. a first elongated through hole, wherein a right side surface of the right fixing plate is disposed in a region corresponding to the second elongated blind hole and has a shape similar to that of the second elongated blind hole a second elongated protrusion, a right reinforcing plate is further disposed on a right side of the right fixing plate, and the right reinforcing plate is further disposed at a place corresponding to the second elongated protrusion a second elongated through hole of the second elongated protrusion. [0008] As a further improvement of the present invention, the left reinforcing plate, the left fixing plate, the intermediate supporting member, the right fixing plate and the right reinforcing plate are riveted by a plurality of first riveting holes penetrating through each other. The methods are glued together in order. The first riveting holes are three and the centers of the three first riveting holes are not on the same straight line. Further comprising a mounting plate disposed at one end of the intermediate support member, the first mounting plate being riveted to the left fixing plate and the right fixing plate by a second riveting hole near a side of the intermediate supporting member, The left side of the mounting plate is attached to the left fixing plate, and the right side of the mounting plate is attached to the right fixing plate, and the second riveting holes are plural.

[0009] As a further improvement of the present invention, the second riveting holes are three and the centers of the three second riveting holes are not on the same straight line, and the left side surface of the left fixing plate corresponds to the a region in which the third elongated blind hole is located is provided with a third elongated protrusion having a shape similar to that of the third elongated blind hole, the left reinforcing plate and the third elongated protrusion Corresponding places are further provided with a third elongated through hole for accommodating the third elongated protrusion, and a right side surface of the right fixed plate corresponds to the fourth elongated blind hole The region is provided with a fourth elongated protrusion having a shape similar to that of the fourth elongated blind hole, and the right reinforcing plate and the fourth elongated protrusion are further provided with a accommodating place A fourth elongated through hole of the fourth elongated protrusion is described.

[0010] As a still further improvement of the present invention, the intermediate support member includes a first intermediate support plate and a second intermediate support plate that are bonded to each other, and the through hole penetrates the first intermediate support plate and The second intermediate support plate, the upper side of the corner of the wedge-shaped space is located on the first intermediate support plate and the second intermediate support plate, and the lower side of the opening angle of the wedge-shaped space is also located at the first intermediate support a plate and the second intermediate support plate. An elastic member receiving area is disposed on a side of the intermediate support member adjacent to the mounting plate, the elastic member receiving area is in communication with a top of the wedge-shaped space, and an elastic member is disposed in the elastic member receiving area. The elastic member is an elastic piece, and the elastic piece includes a curved fixing section and an abutting section, and the bending fixing section is accommodated in the elastic member receiving area, and the engaging section protrudes into the wedge-shaped space and gives the gear block A thrust applied to the gear member is applied.

[0011] Preferably, it further includes an adjustment lever coupled to the gear member, the adjustment lever rotating as the gear member rotates. a circular hole is disposed on the left reinforcing plate, the left fixing plate, the right fixing plate, and the right reinforcing plate, and a side of the gear member adjacent to the right fixing plate is disposed to cooperate with the circular hole a circular protrusion, the side of the gear member adjacent to the left fixing plate is provided with a toothed protrusion or A toothed groove, where the corresponding adjusting rod is connected to the gear member, is provided with a toothed groove or a toothed protrusion which is coupled with the toothed protrusion.

Advantageous effects of the invention

Beneficial effect

[0012] By implementing the present invention, the following beneficial effects can be obtained:

[0013] An angle adjusting device includes a first supporting structure and a second supporting structure and a gear member disposed therebetween, the gear member being rotatable within the first supporting structure and the second supporting structure, The first supporting structure and one side of the second supporting structure form a wedge-shaped space, and the wedge-shaped space includes a top side of the ten-folding corner, a lower side of the opening angle, and left side and right sides of the left and right sides of the lower side of the opening angle a gear block is disposed in the wedge-shaped space, a gear on the gear block is engaged with the gear member, a tongue of the wedge-shaped space faces the gear member, and a through-slot is disposed on the gear block a first fixed shaft of the gear block, wherein the left side surface and the right side surface are oppositely disposed with a first elongated blind hole and a second elongated blind hole, and the two ends of the first fixed shaft are respectively Extending into the first elongated blind hole and the second elongated blind hole, and further disposed in the wedge space by pushing the two ends of the first fixed shaft respectively at the first Long blind And said second elongated blind hole of said gear so as to block movement of the elastic member toward a direction close to the gear member is located. Through this structural design, the first fixed shaft is not in direct contact with the outside world, so that the external debris is prevented from entering the movement track of the first fixed shaft, thereby avoiding the entry of external debris and causing the first fixed shaft not to The stable and smooth operation can further avoid the problem that the gear member cannot stably rotate smoothly. With 吋, the first support structure and/or the second support structure of the angle-adjustable device are coupled to one component, and the gear member is coupled to the other component, thus achieving angular adjustment of one component relative to the other. The gear block is further provided with a second fixed shaft penetrating the gear block, and the left side surface and the right side surface are further provided with a third elongated blind hole and a fourth elongated blind hole. The two ends of the second fixed shaft respectively extend into the third elongated blind hole and the fourth elongated blind hole, and the elastic member pushes both ends of the first fixed shaft Moving the inside of the first elongated blind hole and the second elongated blind hole respectively to push the two ends of the second fixed shaft respectively in the third elongated blind hole and the The fourth long strip is moved inside the blind hole. By providing the second fixed shaft, the force of the first fixed shaft on the moving jaw can be reduced, and the force is dispersed by the first fixed shaft and the second fixed shaft, and the angle adjusting device can be extended. The service life. The first support structure or the second support structure includes an intermediate support member, and the intermediate support member is provided with a through hole for accommodating the gear member, and one side of the through hole is the wedge-shaped space, a wedge-shaped space penetrating the through hole, and a left side fixing plate and a right side fixing plate respectively disposed on the left and right sides of the intermediate supporting member, the first elongated blind hole and the third elongated strip blind The hole is disposed on the left fixing plate, and the second elongated blind hole and the fourth elongated blind hole are disposed on the right fixing plate. The left side surface of the left fixing plate is disposed with a first elongated protrusion having a shape similar to that of the first elongated blind hole corresponding to an area where the first elongated blind hole is located, The left side fixing plate is further provided with a left reinforcing plate, and the left reinforcing plate is further disposed at a position corresponding to the first elongated protrusion to accommodate the first elongated protrusion. a first elongated through hole, wherein a right side surface of the right fixing plate is disposed in a region corresponding to the second elongated blind hole and has a shape similar to that of the second elongated blind hole a second elongated protrusion, a right reinforcing plate is further disposed on a right side of the right fixing plate, and the right reinforcing plate is further disposed at a place corresponding to the second elongated protrusion a second elongated through hole of the second elongated protrusion. This structure not only greatly improves the strength of the angle adjusting device itself, but also increases the maximum torque limit that the angle adjusting device is subjected to, and the structure is more reasonable, the processing is more urgent and the assembly is simpler. In the processing of the left-side fixed plate or the long-shaped blind hole on the right fixed plate, it only needs to be punched and ensure that the bottom of the blind hole protrudes from the other end of the plate, so that the long strip on the other side of the plate The bumps are also processed. The assembly 伸 extends the elongated protrusion into the elongated through hole to complete the positioning in the assembly.

The left reinforcing plate, the left fixing plate, the intermediate supporting member, the right fixing plate and the right reinforcing plate are sequentially joined together by riveting through a plurality of first riveting holes penetrating through each other. The first riveting holes are three and the centers of the three first riveting holes are not on the same straight line. Further comprising a mounting plate disposed at one end of the intermediate support member, the first mounting plate being riveted to the left fixing plate and the right fixing plate by a second riveting hole near a side of the intermediate supporting member, The left side of the mounting plate is attached to the left fixing plate, and the right side of the mounting plate is attached to the right fixing plate, and the second riveting holes are plural. The second rivet holes are three and the centers of the three second rivet holes are not on the same straight line, and the left side surface of the left fixing plate corresponds to the area where the third elongated blind hole is located. a third elongated protrusion having a shape similar to that of the third elongated blind hole, wherein the left reinforcing plate and the third elongated protrusion are further provided to accommodate the first Three long strips a third elongated through hole, wherein a right side of the right fixing plate corresponds to a region where the fourth elongated blind hole is located, and a shape similar to the shape of the fourth elongated blind hole is provided And a fourth elongated strip-shaped protrusion, wherein the right reinforcing plate and the fourth elongated protrusion are further disposed with a fourth elongated through hole for receiving the fourth elongated protrusion. This riveting structure enhances the strength of the angle adjusting device itself, and has the beneficial effect of extending the service life of the angle adjusting device. The intermediate support member includes a first intermediate support plate and a second intermediate support plate that are adhered to each other, and the through hole penetrates through the first intermediate support plate and the second intermediate support plate, the wedge shape The upper side of the opening corner of the space is located on the first intermediate support plate and the second intermediate support plate, and the lower side of the opening angle of the wedge-shaped space is also located on the first intermediate support plate and the second intermediate support plate. An elastic member receiving area is disposed on a side of the intermediate support member adjacent to the mounting plate, the elastic member receiving area is in communication with a top of the wedge-shaped space, and an elastic member is disposed in the elastic member receiving area. The elastic member is an elastic piece, and the elastic piece includes a curved fixing section and an abutting section, and the bending fixing section is accommodated in the elastic member receiving area, and the engaging section protrudes into the wedge-shaped space and gives the gear block A thrust applied to the gear member is applied. Such a structure ensures that the gear block can be smoothly retracted to the locked position, and can be rebounded after the rotation to ensure the smooth rotation of the gear member, thereby ensuring smooth and stable operation of the angle adjusting device. The angle adjustment device further includes an adjustment lever coupled to the gear member, the adjustment lever rotating as the gear member rotates. a circular hole is disposed on the left reinforcing plate, the left fixing plate, the right fixing plate, and the right reinforcing plate, and a side of the gear member adjacent to the right fixing plate is disposed to cooperate with the circular hole a circular protrusion, a side of the gear member adjacent to the left fixing plate is provided with a toothed protrusion or a toothed groove, and a corresponding place where the adjusting rod is connected with the gear member is provided with a The toothed protrusions are coupled to the connected toothed grooves or toothed protrusions. Through such a fitting fit, a flexible mounting fit of the adjusting rod and the gear member can be achieved, and the torque transmission between the two is more stable, thereby achieving stable and flexible adjustment of the angle of the adjusting rod with respect to the mounting plate.

Brief description of the drawing

DRAWINGS

[0015] The present invention will be further described in detail below with reference to the accompanying drawings, in which:

1 is a schematic view showing the overall structure of the present invention except for the adjusting rod;

2 is a schematic exploded view of the present invention except for the adjusting rod; 3 is a partial structural schematic view 1 of the present invention;

4 is a partial schematic view 2 of the present invention;

5 is a schematic structural view of a right side fixing plate of the present invention;

6 is a schematic structural view of a left fixing plate of the present invention;

7 is a schematic view of the overall structure of the invention;

8 is an exploded perspective view of the entire structure of the invention;

9 is a schematic structural view of a gear member.

BEST MODE FOR CARRYING OUT THE INVENTION

[0025] As shown in FIGS. 1 to 4, an angle adjusting device includes a first support structure 10 and a second branch structure 20, and a gear member 30 disposed therebetween, the gear member 30 being The first support structure 10 and the second support structure 20 rotate inside. One side of the first support structure 10 and the second support structure 20 form a wedge-shaped space 40, and the wedge-shaped space 40 includes a top corner 41 and a corner a lower side surface 42 and a left side surface 43 and a right side surface 44 on the left and right sides of the lower side surface 42 of the opening angle, a gear block 50 is disposed in the wedge shaped space 40, a gear on the gear block 50 and the gear The gear member 30 is engaged, the mouth of the wedge-shaped space 40 faces the gear member 30, and the gear block 50 is provided with a first fixed shaft 51 penetrating the gear block 50, wherein: the left side surface A first elongated blind hole 431 and a second elongated blind hole 441 are oppositely disposed on the right side surface 44, and two ends of the first fixed shaft 51 respectively extend into the first long strip Blind hole 431 and the described The two elongated strip holes 441 are further disposed in the wedge-shaped space 40 by pushing the two ends of the first fixed shaft 51 at the first elongated blind hole 4 31 and the second long The inside of the strip blind hole 441 moves to push the gear block 50 toward the elastic member 61 in the direction in which the gear member 30 is located.

[0026] The gear block 50 is further provided with a second fixed shaft 52 extending through the gear block 50. The left side surface 43 and the right side surface 44 are oppositely disposed with a third elongated blind hole. 432 and the fourth elongated blind hole 442, the two ends of the second fixed shaft 52 respectively extend into the third elongated blind hole 432 and the fourth elongated blind hole 442, The elastic member 61 moves the two ends of the first fixed shaft 51 in the first elongated blind hole 431 and the second elongated blind hole 441, respectively, and pushes the second fixed shaft Both ends of the 52 are moved within the third elongated blind hole 432 and the fourth elongated blind hole 442, respectively. Said The first support structure 10 or the second support structure 20 includes an intermediate support member 70, and the intermediate support member 70 is provided with a through hole 71 for accommodating the gear member 30, and one side of the through hole 71 is the a wedge-shaped space 40, the wedge-shaped space 40 is continuous with the through hole 71, and a left side fixing plate 81 and a right side fixing plate 82 are respectively disposed on the left and right sides of the intermediate supporting member 70, and the first elongated strip shape A blind hole 431 and the third elongated blind hole 432 are provided on the left fixing plate 81. The left side surface of the left fixing plate 81 is disposed with a first elongated shape having a shape similar to that of the first elongated blind hole 43 1 corresponding to the area where the first elongated blind hole 431 is located. a protrusion 811, a left side reinforcing plate 83 is further disposed on a left side of the left fixing plate 81, and a portion corresponding to the first elongated protrusion 811 is further disposed at a position corresponding to the first elongated protrusion 811. a first elongated through hole 831 of the first elongated protrusion 811, and a right side surface of the right fixed plate 81 is shaped corresponding to a region where the second elongated blind hole 441 is located A second elongated protrusion 821 having a shape similar to the second elongated blind hole 441 is further provided with a right reinforcing plate 84 on the right side of the right fixing plate 82, and the right reinforcing plate 84 is provided. A second elongated through hole 841 that can accommodate the second elongated protrusion 821 is further disposed at a portion corresponding to the second elongated protrusion 821. The left reinforcing plate 83, the left fixing plate 81, the intermediate supporting member 70, the right fixing plate 82, and the right reinforcing plate 84 are sequentially joined by caulking through a plurality of first staking holes 91 penetrating each other. Together. The first riveting holes 91 are three and the centers of the three first riveting holes 91 are not on the same straight line. The angle adjusting device further includes a mounting plate 85 disposed at the end of the intermediate support member 30, and the side of the first mounting plate 85 adjacent to the intermediate support member 70 is fixed to the left side through the second riveting hole 92. The plate 81 and the right fixing plate 82 are riveted together, and the left side of the mounting plate 85 is fitted to the left fixing plate 81, and the right side of the mounting plate 85 is attached to the right fixing plate 82. Together, the second riveting holes 92 are plural. The second rivet holes 92 are three and the centers of the three second rivet holes 92 are not on the same straight line, and the left reinforcing plate 83 and the third elongated protrusion 812 are correspondingly disposed. The third elongated through hole 832 of the third elongated protrusion 81 2 can be accommodated, and the right side surface of the right fixed plate 82 corresponds to the area where the fourth elongated blind hole 442 is located A fourth elongated protrusion 822 having a shape similar to that of the fourth elongated blind hole 442 is provided, and a portion corresponding to the fourth elongated protrusion 822 is further disposed at a position corresponding to the fourth elongated protrusion 822 A fourth elongated through hole 842 of the fourth elongated protrusion 822 may be received. The intermediate support member 70 includes a first intermediate support plate 72 and a second intermediate support plate 73 that are adhered to each other, and the through holes 71 penetrate the first intermediate support plate 72 and the second intermediate support at the same time. Plate 73, the sheet of the wedge shaped space 40 The upper side 41 of the corner is located on the first intermediate support plate 72 and the second intermediate support plate 73, and the lower side 42 of the wedge-shaped space is also located at the first intermediate support plate 72 and the second intermediate portion. Support plate 7 3 . An elastic member accommodating portion 62 is disposed on a side of the intermediate support member 70 adjacent to the mounting plate 85, and the elastic member accommodating portion 62 communicates with a top of the wedge-shaped space 40 in the elastic member accommodating portion 62. An elastic member 61 is provided. The elastic member 61 is an elastic piece. The elastic piece includes a curved fixing portion 611 and an abutting portion 612. The curved fixing portion 611 is received in the elastic member receiving portion 62. 612 projects into the wedge-shaped space 40 and applies a thrust to the gear block 50 to move toward the gear member 30.

[0027] As shown in FIGS. 5 and 6, the second elongated blind hole 441 and the fourth elongated blind hole 442 are disposed on the right fixing plate 82. The left side surface of the left fixing plate 81 is disposed with a first elongated protrusion having a shape similar to that of the first elongated blind hole 431 corresponding to the area where the first elongated blind hole 431 is located. 81 1 , the left side surface of the left fixing plate 81 corresponding to the third elongated blind hole 432 is provided with a third shape similar in shape to the third elongated blind hole 432 Long strip protrusions 812.

As shown in FIGS. 7 to 9, the angle adjusting device further includes an adjustment lever 90 coupled to the gear member 30, the adjustment lever 90 rotating as the gear member 30 rotates. The left reinforcing plate 83, the left fixing plate 81, the right fixing plate 82, and the right reinforcing plate 84 are provided with a circular hole 80, and the gear member 30 is disposed adjacent to the side of the right fixing plate 82. a circular protrusion 31 that cooperates with the circular hole 80, and a side of the gear member ₃₀ adjacent to the left fixing plate 81 is provided with a toothed protrusion 32 or a toothed groove, and the corresponding adjustment rod A toothed groove 901 or a toothed projection that is coupled to the toothed projection 32 is provided at a position where the gear member 30 is coupled to the gear member 30.

[0029] It must be noted that the above-described embodiments are merely some non-limiting examples of the invention. However, it is to be understood by those skilled in the art that modifications, alterations and changes may be made without departing from the spirit and scope of the invention.

Claims

Claim

[Answer 1] An angle adjusting device comprising a first support structure (10) and a second branch structure (20 and a gear member (30) disposed therebetween, the gear member (30) being The first support structure (10) rotates within the second support structure (20), and a side of the first support structure (10) and the second support structure (20) forms a wedge-shaped space (40). The wedge-shaped space (40) includes a top side (41) of the corner of the corner and a lower side of the corner of the corner (

42), and a left side surface (43) and a right side surface (44) on the left and right sides of the lower side (42) of the opening angle, wherein a gear block (50) is disposed in the wedge-shaped space (40), a gear on the gear block (50) is engaged with the gear member (30), a tongue of the wedge-shaped space (40) faces the gear member (30), and the gear block (50) is provided with the through a first fixed shaft (51) of the gear block (50), characterized by: the left side surface (

43) and the right side surface (44) is oppositely disposed with a first elongated blind hole (431) and a second elongated blind hole (441), and the two ends of the first fixed shaft (51) are respectively Extending into the first elongated blind hole (431) and the second elongated blind hole (441), and in the wedge-shaped space (40) is further provided by pushing the first fixed axis Both ends of (51) move within the first elongated blind hole (431) and the second elongated blind hole (441) to push the gear block (50) closer to the gear An elastic member (61) in the direction in which the member (30) is located.

[Claim 2] An angle adjusting device according to claim 1, wherein: said gear block (5)

A second fixed shaft (52) penetrating the gear block (50) is further disposed on the left side surface (43) and the right side surface (44), and a third elongated strip is further disposed on the left side surface (43) a blind hole (432) and a fourth elongated blind hole (442), wherein two ends of the second fixed shaft (52) respectively extend into the third elongated blind hole (432) and the fourth In the elongated blind hole (442), the elastic member (61) pushes the first elongated blind hole (431) and the second at both ends of the first fixed shaft (51) Moving the inside of the long blind hole (441) to push the two ends of the second fixed shaft (52) in the third elongated blind hole (432) and the fourth elongated blind hole respectively (442) Move inside.

[Aspect 3] An angle adjusting device according to claim 1 or 2, wherein: said first branch The support structure (10) or the second support structure (20) includes an intermediate support member (70), and the intermediate support member (70) is provided with a through hole for receiving the gear member (30)

(71), one side of the through hole (71) is the wedge-shaped space (40), and the wedge-shaped space (40) and the through hole (71) penetrate through the intermediate support member (70) The left and right sides are respectively provided with a left fixing plate (81) and a right fixing plate (82), and the first elongated blind hole (431) and the third elongated blind hole (432) are disposed at the same On the left fixing plate (81), the second elongated blind hole (441) and the fourth elongated blind hole (442) are disposed on the right fixing plate (82).

[Aspect 4] An angle adjusting device according to claim 3, wherein: the left side surface of the left fixing plate (81) corresponds to the first elongated blind hole (431) a region in which the first elongated protrusion having a shape similar to that of the first elongated blind hole (431) is provided

(811), a left reinforcing plate (83) is further disposed on a left side of the left fixing plate (81), the left reinforcing plate (83) and the first elongated protrusion (811) Corresponding places are also provided with a first elongated through hole that can accommodate the first elongated protrusion (811)

(831), a right side surface of the right fixing plate (81) is disposed with a shape and a second elongated blind hole corresponding to a region where the second elongated blind hole (441) is located (441) a second elongated protrusion (821) having a similar shape, and a right reinforcing plate (84) is disposed on the right side of the right fixing plate (82), and the right reinforcing plate (84) is Corresponding to the second elongated protrusion (821) is further provided with a second elongated through hole (8 ⁴ 1) which can accommodate the second elongated protrusion (821).

[Aspect 5] An angle adjusting device according to claim 4, characterized in that: the left reinforcing plate (83), the left fixing plate (81), the intermediate supporting member (70), and the right side fixing The plate (82) and the right reinforcing plate (84) are sequentially joined together by riveting through a plurality of first riveting holes (91) penetrating each other, and the first riveting holes (91) are three and The centers of the three first rivet holes (91) are not in the same straight line, in the intermediate support member

(70) one end is provided with a mounting plate (85), and a side of the first mounting plate (85) adjacent to the intermediate support member (70) passes through the second riveting hole (92) and the left fixing plate (81) And the right fixing plate (82) is riveted together, the left side of the mounting plate (85) The left fixing plate (81) is attached, and the right side of the mounting plate (85) is attached to the right fixing plate (82), and the second riveting holes (92) are plural.

[Claim 6] An angle adjusting device according to claim 5, wherein: the second riveting holes (92) are three and the centers of the three second riveting holes (92) are not in the same straight line. The left side surface of the left fixing plate (81) is disposed in a shape corresponding to the third elongated blind hole (432) and has a shape and a shape of the third elongated blind hole (432). a similar third elongated protrusion (812), where the left reinforcing plate (83) and the third elongated protrusion (812) are further disposed to accommodate the third elongated strip a third elongated through hole (832) of the protrusion (812), wherein a right side surface of the right fixing plate (82) is disposed corresponding to an area of the fourth elongated blind hole (442) a fourth elongated protrusion (822) having a shape similar to that of the fourth elongated blind hole (442), the right reinforcing plate

(84) A fourth elongated through hole (842) accommodating the fourth elongated protrusion (822) is further disposed at a portion corresponding to the fourth elongated protrusion (822).

[Claim 7] An angle adjusting device according to claim 6, wherein: said intermediate support member (70) includes a first intermediate support plate (72) and a second intermediate support that are attached to each other a plate (73), the through hole (71) penetrates through the first intermediate support plate (72) and the second intermediate support plate (73), and the upper side of the corner of the wedge-shaped space (40) (41) The same side is located on the first intermediate support plate (72) and the second intermediate support plate (73), and the lower side (42) of the rectangular space of the wedge-shaped space is also located at the first intermediate support plate (72) and On the second intermediate support plate (73).

[Claim 8] An angle adjusting device according to claim 7, wherein: the side of the intermediate supporting member (70) adjacent to the mounting plate (85) is provided with an elastic member receiving area (62). The elastic member accommodating portion (62) communicates with the top of the wedge-shaped space (40), and the elastic member accommodating portion (62) is provided with an elastic member (61), and the elastic member (61) is An elastic piece, the elastic piece includes a curved fixing section (611) and an abutting section (612), the curved fixing section (611) is received in the elastic member receiving area (62), and the engaging section (612) is extended The thrust into the wedge space (40) and the movement of the gear member (30) to the gear member (30) is applied.

[Claim 9] An angle adjusting device according to claim 8, further comprising: an adjusting lever (90) connected to the gear member (30), the adjusting lever (90) The gear member (30) rotates while rotating.

[Claim 10] An angle adjusting device according to claim 9, wherein: the left reinforcing plate (83), the left fixing plate (81), the right fixing plate (82), and the right side A reinforcing hole (80) is provided with a circular hole (80), and the gear member (30) is adjacent to the right fixing plate

One side of (82) is provided with a circular protrusion (31) that cooperates with the circular hole (80), and a side of the gear member (30) adjacent to the left fixing plate (81) is provided with a tooth Raised

(32) or a toothed groove, where the corresponding adjusting rod (90) is connected to the gear member (30), and a toothed groove (90) that is coupled with the toothed protrusion (32) is provided. 1) Or dentate projections.