CN218914478U

CN218914478U - Three-degree-of-freedom adjusting device with extension arm

Info

Publication number: CN218914478U
Application number: CN202223027046.1U
Authority: CN
Inventors: 张军; 陶征; 章庆; 王青; 严永俊
Original assignee: Nanjing Hurys Intelligent Technology Co Ltd
Current assignee: Nanjing Hurys Intelligent Technology Co Ltd
Priority date: 2022-11-15
Filing date: 2022-11-15
Publication date: 2023-04-25
Anticipated expiration: 2032-11-15

Abstract

The utility model discloses a three-degree-of-freedom adjusting device with an extension arm, which comprises a front end connecting part, a first adjusting part, a second adjusting part, a third adjusting part and a tail end connecting part, wherein the front end connecting part is connected with the first adjusting part; the front end connecting part is connected with the first adjusting part, and the stop adjusting bolt of the first adjusting part drives the front end connecting part to rotate or stop; the first adjusting part is connected with the rotating piece of the second adjusting part; the third adjusting part is provided with a plurality of adjusting hole sites, and the rotating part rotates to any angle to be arranged at any position of the adjusting hole sites; the third adjusting part is further provided with a rotating mechanism, and the third adjusting part rotates to any angle to be installed at the position of the tail end installation hole. The utility model solves the problems that the installation of equipment such as a detector cannot be accurately adjusted in full freedom degree, the installation is complicated, and the like, can save the installation time, ensure that the time for an operator to stay at a high place is short, and reduce the operation risk; the overall stability is improved.

Description

Three-degree-of-freedom adjusting device with extension arm

Technical Field

The application relates to the field of sensing equipment, in particular to a three-degree-of-freedom adjusting device with an extension arm.

Background

Along with development of technological innovation, intelligent perception technology is permeated into the fields of traffic, industry, security protection and the like, and the requirements for mounting and adjusting angles of high-precision equipment are increasingly highlighted while the detection technology level is continuously improved.

The following problems exist with the currently available adjustable base devices on the market: although three degrees of freedom adjustment can be achieved, the adjustment requirements for height or extension cannot be met, nor can precise adjustment be achieved; and the installation is tedious, the modular combination installation is impossible, the installation time is too long, so that the air retention time of installation staff is too long, and the accident risk rate is increased.

In the prior art, the requirement of equipment installation angle rotation is met through a mode of setting a rotating shaft, but the mode is easy to generate the conditions of unstable fixation, angle deviation and the like, and the deviation of a detection result is easy to cause, or angle adjustment is realized through motor setting, so that the structure is complex, and the convenience of operation is influenced.

Disclosure of Invention

In view of this, the embodiment of the application provides a three-degree-of-freedom adjusting device with an extension arm, so as to solve the problems of limited adjustment, unstable fixation, inaccurate adjustment angle, high operation risk and the like.

The technical scheme of the utility model is as follows: a three-degree-of-freedom adjusting device with an extension arm, which comprises a front end connecting part 1, a first adjusting part 2, a second adjusting part 3, a third adjusting part 4 and a tail end connecting part 5;

one end of the front end connecting component 1 is used for installing detection equipment, the other end of the front end connecting component 1 is connected with the first adjusting component 2 through a fastening screw, and the stop adjusting bolt 23 of the first adjusting component 2 drives the front end connecting component 1 to rotate or stop;

the first adjusting part 2 is connected with a rotating piece 31 of the second adjusting part 3, and the rotating piece 31 drives the front end connecting part 1 and the first adjusting part 2 to integrally rotate or stop;

the third adjusting part 4 is provided with a plurality of adjusting hole sites 41, and the rotating part 31 rotates to any angle to be installed at any position of the adjusting hole sites 41;

the third adjusting part 4 is further provided with a rotating mechanism 47, and the third adjusting part 4 rotates to any angle to be installed at the position of the tail end installing hole 52 of the tail end connecting part 5.

The front end connecting part 1 is provided with at least two front end connecting holes 11 at one end for installing detection equipment, the other end of the front end connecting part 1 is also provided with at least two first fixing holes 12, and the first fixing holes 12 are in one-to-one correspondence with the second fixing holes 211 of the first adjusting part 2.

Further, the first adjusting component 2 includes a connecting block 21, a rotating block 22 and an adjusting stop bolt 23, where the connecting block 21 and the rotating block 22 are integrally connected or welded, and in order to meet the adjustment requirement of the installation direction of the front end connecting component 1, two ends of the connecting block 21 are provided with at least two second fixing holes 211; the rotating block 22 is provided with a third fixing hole 222, the third fixing hole 222 and an axle center hole 311 of the rotating member 31 penetrate through a limiting bolt 225, the limiting bolt 225 is provided with external threads, and the third fixing hole 222 and the axle center hole 311 are provided with internal threads;

the rotating block 22 is further provided with a movable hole 223 and a movable space 224, the movable hole 223 is used for a screw rod 235 to move, the movable space 224 is used for a bolt rod 234 to move, one end of the bolt rod 234 is provided with an adjusting part 231, the other end of the bolt rod 234 is provided with a fixing part 232, and two ends of the bolt rod 234 are fixed at the position of the adjusting hole 312 of the rotating piece 31; the adjusting part 231 rotates to adjust the position of the screw 235 on the bolt 234, and the screw 235 drives the rotating block 22 to rotate.

Further, the screw 235 and the bolt 234 are disposed to intersect, the bolt 234 is provided with external threads, a through hole is formed in a side surface of the screw 235, and internal threads are disposed.

Further, a positioning block 237 is provided inside the adjusting part 231, and the position is fixed by a positioning lock 233; the fixing portion 232 is a slotted nut.

Further, the rotating block 22 is provided with a rotation angle scale 221, and the scale range is preferably 0-45 degrees; the rotating member 31 is provided with a pointing indicator 317.

Further, the connecting block 21 of the first adjusting part 2 is further provided with at least one connecting fastening hole 212, and a center screw is arranged in the connecting block for reverse reinforcement installation; the tail end connecting part 5 is also provided with at least one tail end fastening hole 55, and is internally provided with a tip screw for reverse reinforcement installation.

Further, the rotating member 31 is provided with a rotating space 32, and the rotating block 22 and the adjusting stop bolt 23 of the first adjusting member 2 are arranged in the rotating space 32;

the rotating member 31 is further provided with a positioning lock catch 314, and the positioning lock catch 314 is integrally connected with the rotating member 31; the positioning lock 314 fixes the positioning lock 233 of the adjusting member 2.

Further, the third adjusting component 4 further includes a supporting frame 45, the rotating mechanism 47 is disposed at one end of the supporting frame 45, the adjusting hole sites 41 are sequentially arranged on the supporting frame 45, the supporting frame 45 is further provided with a plurality of thickened portions 42, the thickened portions 42 are in one-to-one correspondence with the adjusting hole sites 41, and the thickened portions 42 are marked with length information.

Further, support frame limiting grooves 49 are radially formed around the adjusting hole sites 41; the rotating member 31 is provided with a rotating member mounting hole 315, and rotating member limiting protrusions 316 are radially arranged around the rotating member mounting hole 315; the supporting frame limiting groove 49 is matched with the rotating piece limiting protrusion 316;

the rotating mechanism 47 is provided with a rotating mechanism mounting hole 48, and rotating mechanism limiting protrusions 43 are radially arranged around the rotating mechanism mounting hole 48; the center of the tail end connecting part 5 is provided with a tail end mounting hole 52, and the periphery of the tail end connecting part is provided with tail end limiting grooves 53 in a radial manner; the rotation mechanism limiting protrusion 43 is matched with the tail end limiting groove 53.

Further, the rotating member 31 is provided with a plurality of first positioning marks 313, and the third adjusting member 4 is provided with a plurality of second positioning marks 46; the rotation member 31 rotates to align any one of the first positioning marks 313 with any one of the second positioning marks 46, so as to calculate the rotation angle of the rotation member 31;

the rotating mechanism 47 is provided with at least one third positioning mark 44, the tail end connecting part 5 is provided with a plurality of fourth positioning marks 54, and the rotating mechanism 47 rotates to align the third positioning mark 44 with any one of the fourth positioning marks 54, so that the rotating angle of the rotating mechanism 47 can be calculated.

Further, the tail end connecting component 5 is provided with a plurality of fixing grooves 51, and is used for being installed on the rod body through the anchor ear, and the fourth positioning marks 54 are radially arranged around the tail end limiting groove 53.

Further, the first positioning mark 313, the second positioning mark 46, and the fourth positioning mark 54 are uniformly arranged.

Further, the front end connecting part 1, the first adjusting part 2, the second adjusting part 3, the third adjusting part 4 and the tail end connecting part 5 are aluminum alloy die castings.

The method for installing the three-degree-of-freedom adjusting device with the extension arm comprises the following steps:

s1: the first adjusting part 2, the second adjusting part 3, the third adjusting part 4 and the tail end connecting part 5 are connected by fastening screws in sequence, so that all parts are connected but the screw parts can be still movably adjusted;

s2: fixing the tail end connecting part 5 on the vertical rod through a hoop, and reversely reinforcing at the tail end fastening hole 55 by using a tip screw;

s3: the rotation angle of the rotating mechanism 47 is adjusted, and according to scene requirements, the rotation mechanism limiting protrusion 43 and the tail end limiting groove 53 are ensured to be meshed at any angle, and the fastening screw is screwed to complete fixation; the rotation angle of the rotating piece 31 is adjusted, and according to scene requirements, the rotating piece limiting protrusion 316 and the supporting frame limiting groove 49 are ensured to be meshed at any angle, and the fastening screw is screwed to complete fixation;

ensuring the fixation of a limiting bolt at the axle center hole 311, rotating the regulating stop bolt 23 to drive the screw 235 to rotate the rotating block 22, observing the corresponding rotating angle of the pointing mark 317, stopping after determining the position, and fixing the slotted nut of the fixing part 232;

s4: fixing the detector device to the front end connection part 1 through the front end connection hole 11 using a fastening screw; the front end connecting part 1 is installed and fixed from any direction of two ends of the connecting block 21 of the second adjusting part 3, and is reversely reinforced at the connecting fastening hole 212 by using a tip screw;

further, when the detection device needs to be adjusted again after being installed, the rotation angle can be known through the initial position and the rotation position corresponding to the fourth positioning mark 54 of the third positioning mark 44.

Further, the vertical rod is a transverse rod or a longitudinal rod or an inclined rod.

According to the technical scheme, the three-degree-of-freedom adjusting device with the extension arm provided by the utility model at least comprises the following beneficial effects:

(1) The utility model mainly solves the problems of complete degree-of-freedom angle adjustment and accurate adjustment of the angle required by the height adjustment of equipment installation, can solve the problem of complicated installation, realizes simple modularized installation, ensures that each part can be freely adjusted in a modularized connection mode, and saves time for rapid installation;

(2) The utility model is provided with three adjusting parts, so that the detector can be installed to realize rotation adjustment with three degrees of freedom, and the accuracy of the adjusting angle is improved;

(3) The connecting parts of the components are welded or connected through screws, and the connecting parts are provided with the bulges and the grooves, so that the stability is enhanced, the loosening caused by gravity or other influences is prevented, and the overall stability is improved;

(4) The utility model has less operation steps, and the relative position is fixed in advance and then the pole is arranged for fine adjustment during installation, so that the stay time of operators at high positions is short, and the operation risk is reduced.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings that are needed in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments provided in the present application, and other drawings may be obtained according to these drawings for a person having ordinary skill in the art.

FIG. 1 is a schematic diagram of the overall structure of a three degree of freedom adjustment device with an extension arm according to the present utility model;

FIG. 2 is a second schematic diagram of the overall structure of the three-degree-of-freedom adjustment device with extension arm according to the present utility model;

FIG. 3 is a schematic view of a part of an assembled structure of a three-degree-of-freedom adjusting device with an extension arm according to the present utility model;

FIG. 4 is a schematic view of the front end connection part of the three degree of freedom adjustment device with an extension arm according to the present utility model;

FIG. 5 is a schematic view of a first adjustment member of the three degree of freedom adjustment device with an extension arm of the present utility model;

FIG. 6 is a schematic illustration of one of the three degree of freedom adjustment device adjustment stop bolt configuration with extension arm of the present utility model;

FIG. 7 is a second schematic view of the three degree of freedom adjustment device adjustment stop bolt with extension arm of the present utility model;

FIG. 8 is a schematic diagram of an assembled structure of a first adjusting member and a second adjusting member of a three degree of freedom adjusting device with an extension arm according to the present utility model;

FIG. 9 is a schematic view of a second adjustment member of the three degree of freedom adjustment device with an extension arm of the present utility model;

FIG. 10 is a schematic view of a three degree of freedom adjustment device support frame with an extension arm according to one embodiment of the present utility model;

FIG. 11 is a second schematic view of a three degree of freedom adjustment device support frame with an extension arm according to the present utility model;

FIG. 12 is a third schematic view of a three-degree-of-freedom adjustment device support frame with an extension arm according to the present utility model;

FIG. 13 is a schematic view of a three degree of freedom adjustment mechanism with extension arm of the present utility model;

FIG. 14 is a second schematic view of a three degree of freedom adjustment mechanism with extension arm according to the present utility model;

in the figure: 1. a front end connection member; 11. a front end connection hole; 12. a first fixing hole; 2. a first adjusting member; 21. a connecting block; 211. a second fixing hole; 212. connecting the fastening holes; 22. a rotating block; 221. a rotation angle scale; 222. a third fixing hole; 223. a movable hole; 224. a movable space; 225. a limit bolt; 23. adjusting the stop bolt; 231. an adjusting section; 232. a fixing part; 233. a positioning lock; 234. a bolt; 235. a screw; 236. a gasket; 237. a positioning block; 3. a second adjusting member; 31. a rotating member; 311. an axial hole; 312. an adjustment aperture; 313. a first positioning mark; 314. positioning the lock catch; 315. a rotating member mounting hole; 316. a rotating piece limiting protrusion; 317. pointing to the mark; 32. a rotation space; 4. a third adjusting member; 41. adjusting the hole site; 42. a thickened portion; 43. a rotary mechanism limiting protrusion; 44. a third positioning mark; 45. a support frame; 46. a second positioning mark; 47. a rotation mechanism; 48. a rotary mechanism mounting hole; 49. a support frame limit groove; 5. a tail end connection member; 51. a fixing groove; 52. a tail end mounting hole; 53. a tail end limiting groove; 54. a fourth positioning mark; 55. and a tail end fastening hole.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, where the described embodiments are only exemplary implementations of the present application, and not all implementations. Those skilled in the art can combine the embodiments of the present application to obtain other embodiments without inventive faculty, and such embodiments are also within the scope of the present application.

As shown in fig. 1-2, a three degree of freedom adjustment device with an extension arm comprises a front end connection part 1, a first adjustment part 2, a second adjustment part 3, a third adjustment part 4 and a rear end connection part 5;

as shown in fig. 4, one end of the front end connecting component 1 is used for installing detection equipment, the other end of the front end connecting component 1 is connected with the first adjusting component 2 through a fastening screw, and the stop adjusting bolt 23 of the first adjusting component 2 drives the front end connecting component 1 to rotate or stop;

as shown in fig. 3, the first adjusting part 2 is connected with a rotating part 31 of the second adjusting part 3, and the rotating part 31 drives the front end connecting part 1 and the first adjusting part 2 to integrally rotate or stop;

Specifically, at least two front end connecting holes 11 are provided at one end of the front end connecting component 1 for installing the detection device, at least two first fixing holes 12 are provided at the other end of the front end connecting component 1, and the first fixing holes 12 are in one-to-one correspondence with the second fixing holes 211 of the first adjusting component 2.

As shown in fig. 5, further, the first adjusting member 2 includes a connecting block 21, a rotating block 22, and an adjusting stop bolt 23, where the connecting block 21 and the rotating block 22 are integrally connected or welded, and in order to meet the adjustment requirement of the installation direction of the front end connecting member 1, two ends of the connecting block 21 are provided with at least two second fixing holes 211; the rotating block 22 is provided with a third fixing hole 222, the third fixing hole 222 and an axle center hole 311 of the rotating member 31 penetrate through a limiting bolt 225, the limiting bolt 225 is provided with external threads, and the third fixing hole 222 and the axle center hole 311 are provided with internal threads;

the rotating block 22 is further provided with a movable hole 223 and a movable space 224, the movable hole 223 is used for a screw rod 235 to move, the movable space 224 is used for a bolt rod 234 to move, as shown in fig. 6-7, one end of the bolt rod 234 is provided with an adjusting part 231, the other end is provided with a fixing part 232, and two ends of the bolt rod 234 are fixed at the position of the adjusting hole 312 of the rotating member 31; the adjusting part 231 rotates to adjust the position of the screw 235 on the bolt 234, and the screw 235 drives the rotating block 22 to rotate.

Further, a positioning block 237 is provided inside the adjusting part 231, and the position is fixed by a positioning lock 233;

as a possible implementation manner, the positioning block 237 is a polygonal block, specifically a hexagonal or octagonal block, two sides of the positioning lock 233 are attached to two opposite sides of the positioning block 237, and the positioning lock 233 is fastened to the positioning lock 313 and the positioning block 237 at the same time, and is fixed by force, so as to prevent loosening and rotation. A gasket 236 is arranged on the inner side of the positioning block 237.

The fixing portion 232 is a slotted nut.

As shown in fig. 8, further, the rotating member 31 is provided with a rotating space 32, and the rotating block 22 and the adjusting stop pin 23 of the first adjusting member 2 are disposed in the rotating space 32;

As shown in fig. 11, further, the third adjusting component 4 further includes a supporting frame 45, the rotating mechanism 47 is disposed at one end of the supporting frame 45, the adjusting hole sites 41 are sequentially arranged on the supporting frame 45, the supporting frame 45 is further provided with a plurality of thickened portions 42, the thickened portions 42 are in one-to-one correspondence with the adjusting hole sites 41, and the thickened portions 42 are marked with length information.

Further, as shown in fig. 10, the periphery of the adjusting hole 41 is radially provided with a supporting frame limiting groove 49; as shown in fig. 9, the rotating member 31 is provided with a rotating member mounting hole 315, and rotating member limiting protrusions 316 are radially disposed around the rotating member mounting hole 315; the supporting frame limiting groove 49 is matched with the rotating piece limiting protrusion 316;

as shown in fig. 12-13, the rotating mechanism 47 is provided with a rotating mechanism mounting hole 48, and rotating mechanism limiting protrusions 43 are radially arranged around the rotating mechanism mounting hole 48; the center of the tail end connecting part 5 is provided with a tail end mounting hole 52, and the periphery of the tail end connecting part is provided with tail end limiting grooves 53 in a radial manner; the rotation mechanism limiting protrusion 43 is matched with the tail end limiting groove 53.

As shown in fig. 14, further, the tail end connecting member 5 is provided with a plurality of fixing grooves 51, which are used for being mounted on the rod body through a hoop, and the fourth positioning marks 54 are radially arranged around the tail end limiting groove 53.

Furthermore, the vertical rod is a transverse rod, a longitudinal rod or an inclined rod, and the installation device is not limited by the direction of the vertical rod and can freely adjust the angle.

As a possible implementation manner, the present embodiment may be applied to a mounting and fixing base of an actuator such as a monitoring device, an antenna adjusting device, a radar device, a searchlight, etc., so as to achieve the adjustment requirement of the corresponding position or viewing angle. Preferably, the present embodiment can be used for a device such as a radar detector, a video detector, etc. which needs to be fixed at a certain position to perform scene and target detection, and the rear side of the device is provided with a mounting hole position corresponding to the front end connection hole 11.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. The three-degree-of-freedom adjusting device with the extension arm is characterized by comprising a front end connecting part (1), a first adjusting part (2), a second adjusting part (3), a third adjusting part (4) and a tail end connecting part (5);

the front end connecting part (1) is connected with the first adjusting part (2) through a fastening screw, and an adjusting stop bolt (23) of the first adjusting part (2) drives the front end connecting part (1) to rotate or stop;

the first adjusting component (2) is connected with a rotating piece (31) of the second adjusting component (3), and the rotating piece (31) drives the front end connecting component (1) and the first adjusting component (2) to integrally rotate or stop;

the third adjusting part (4) is provided with a plurality of adjusting hole sites (41), and the rotating part (31) rotates to any angle to be arranged at any position of the adjusting hole sites (41);

the third adjusting part (4) is further provided with a rotating mechanism (47), and the third adjusting part (4) rotates to any angle to be installed at the position of a tail end installation hole (52) of the tail end connecting part (5).

2. The three-degree-of-freedom adjusting device with the extension arm according to claim 1, wherein the third adjusting component (4) further comprises a supporting frame (45), the rotating mechanism (47) is arranged at one end of the supporting frame (45), the adjusting hole sites (41) are sequentially arranged on the supporting frame (45), the supporting frame (45) is further provided with a plurality of thickening portions (42), the thickening portions (42) are in one-to-one correspondence with the adjusting hole sites (41), and the thickening portions (42) are marked with length information.

3. The three-degree-of-freedom adjusting device with the extension arm according to claim 1, wherein supporting frame limiting grooves (49) are radially arranged around the adjusting hole site (41); the rotating part (31) is provided with a rotating part mounting hole (315), and rotating part limiting protrusions (316) are radially arranged around the rotating part mounting hole (315); the support frame limit groove (49) is matched with the rotating piece limit protrusion (316);

the rotary mechanism (47) is provided with a rotary mechanism mounting hole (48), and rotary mechanism limiting protrusions (43) are radially arranged around the rotary mechanism mounting hole (48); the center of the tail end connecting part (5) is provided with a tail end mounting hole (52), and the periphery of the tail end connecting part is provided with tail end limiting grooves (53) in a radial manner; the rotating mechanism limiting protrusion (43) is matched with the tail end limiting groove (53).

4. Three degree of freedom adjustment device with extension arm according to claim 1, characterized in that the rotating member (31) is provided with a plurality of first positioning marks (313) and the third adjustment member (4) is provided with a plurality of second positioning marks (46); -rotating said rotating member (31) to align any one of said first positioning marks (313) with any one of said second positioning marks (46);

the rotating mechanism (47) is provided with at least one third positioning mark (44), the tail end connecting part (5) is provided with a plurality of fourth positioning marks (54), and the rotating mechanism (47) rotates to align the third positioning mark (44) with any fourth positioning mark (54).

5. The three degree of freedom adjustment device with extension arm of claim 4 wherein the angular difference between the initial position and the rotational position of the third positioning mark (44) corresponding to the fourth positioning mark (54) is the rotational angle.

6. The three degree of freedom adjustment device with extension arm of claim 4 wherein the tail end connection member (5) is provided with a plurality of fixing grooves (51) and the fourth positioning marks (54) are radially arranged around the tail end limiting groove (53).

7. The three degree of freedom adjustment device with extension arm of claim 4 wherein the first positioning indicia (313), the second positioning indicia (46) and the fourth positioning indicia (54) are uniformly aligned.

8. Three-degree-of-freedom adjusting device with an extension arm according to claim 1, characterized in that one end of the front end connecting part (1) is provided with at least two front end connecting holes (11), the other end of the front end connecting part (1) is further provided with at least two first fixing holes (12), and the first fixing holes (12) are in one-to-one correspondence with the second fixing holes (211) of the first adjusting part (2).

9. Three-degree-of-freedom adjusting device with extension arm according to claim 1, characterized in that the first adjusting member (2) comprises a connecting block (21), a rotating block (22) and an adjusting stop bolt (23), the connecting block (21) and the rotating block (22) are integrally connected or welded, and at least two second fixing holes (211) are provided at each of two ends of the connecting block (21); the rotating block (22) is provided with a third fixing hole (222), and the third fixing hole (222) and an axle center hole (311) of the rotating piece (31) penetrate through the limiting bolt (225);

the rotating block (22) is further provided with a movable hole (223) and a movable space (224), the movable hole (223) is used for a screw rod (235) to move, the movable space (224) is used for a bolt rod (234) to move, one end of the bolt rod (234) is provided with an adjusting part (231), the other end of the bolt rod is provided with a fixing part (232), and two ends of the bolt rod (234) are fixed at the position of the adjusting hole (312) of the rotating piece (31); the adjusting part (231) rotates to adjust the position of the screw rod (235) on the bolt rod (234), and the screw rod (235) drives the rotating block (22) to rotate.

10. The three degree of freedom adjustment device with extension arm of claim 9 wherein the screw (235) and the bolt (234) are disposed crosswise, the bolt (234) is provided with external threads, the screw (235) is provided with a through hole on the side thereof, and is provided with internal threads.

11. The three degree of freedom adjustment device with extension arm according to claim 9, characterized in that the adjustment part (231) is provided inside with a positioning block (237) fixed in position by a positioning lock (233); the fixing part (232) is a slotted nut.

12. Three degree of freedom adjustment with extension arm according to claim 9, characterized in that the turning block (22) is provided with a rotation angle scale (221); the rotating member (31) is provided with a pointing indicator (317).

13. Three degree of freedom adjustment device with extension arm according to claim 1, characterized in that the connection block (21) of the first adjustment member (2) is further provided with at least one connection fastening hole (212) with a tip screw inside; the tail end connecting part (5) is also provided with at least one tail end fastening hole (55) in which a tip screw is arranged.

14. Three-degree-of-freedom adjusting device with extension arm according to claim 1, characterized in that the rotating member (31) is provided with a rotating space (32), in which rotating space (32) the rotating block (22) of the first adjusting member (2) and the adjusting stop (23) are arranged;

the rotating piece (31) is further provided with a positioning lock catch (314), and the positioning lock catch (314) is integrally connected with the rotating piece (31); the positioning lock catch (314) fixes a positioning lock (233) of the adjusting part (2).

15. Three degree of freedom adjustment device with extension arm according to claim 1, characterized in that the front end connection part (1), the first adjustment part (2), the second adjustment part (3), the third adjustment part (4) and the rear end connection part (5) are aluminum alloy die castings.

16. Three degree of freedom adjustment device with extension arm according to claim 1, characterized in that the tail end connection part (5) is mounted on a vertical pole, which is a transversal or longitudinal or inclined pole.