CN114688424A

CN114688424A - High accuracy pendulum-type appearance installation is with fixed framework

Info

Publication number: CN114688424A
Application number: CN202210424411.8A
Authority: CN
Inventors: 周华江
Original assignee: Suqian Zhongkexin Machinery Co ltd
Current assignee: Suqian Zhongkexin Machinery Co ltd
Priority date: 2022-04-22
Filing date: 2022-04-22
Publication date: 2022-07-01

Abstract

The invention discloses a fixing framework for mounting a high-precision pendulum instrument, which comprises a supporting assembly, a supporting assembly and a fixing assembly, wherein the supporting assembly comprises a base, a pendulum instrument body, a supporting rod, a supporting piece and an adjusting piece; and the mounting assembly is arranged on the adjusting piece and comprises a mounting plate, a connecting column, a fixed box, a top cover, a driving piece, a triggering piece, a fastener and a limiting piece. According to the invention, the height of the pendulum instrument can be conveniently adjusted through the supporting assembly when the pendulum instrument is used, so that the measurement accuracy is improved, then the convenience of the pendulum instrument in disassembly and assembly is improved through the mounting assembly, and a plurality of bolts do not need to be screwed by adopting an additional tool, so that the disassembly and assembly efficiency is greatly improved.

Description

High accuracy pendulum-type appearance installation is with fixed framework

Technical Field

The invention relates to the technical field of pendulous instruments, in particular to a fixing framework for mounting a high-precision pendulum instrument.

Background

The pendulum type instrument is a pendulum type friction coefficient tester for short, the pendulum type instrument is a dynamic pendulum impact type instrument, is developed according to the principle that the potential energy of a pendulum is equal to the work done by overcoming the friction of a road surface in the process of sliding a rubber sheet arranged at the tail end of a pendulum arm across the road surface, and is an instrument for measuring the anti-sliding value of a test piece of an asphalt road surface, a marking line or other materials.

Disclosure of Invention

This section is for the purpose of summarizing some aspects of embodiments of the invention and to briefly introduce some preferred embodiments. In this section, as well as in the abstract and the title of the invention of this application, simplifications or omissions may be made to avoid obscuring the purpose of the section, the abstract and the title, and such simplifications or omissions are not intended to limit the scope of the invention.

The present invention has been made in view of the above and/or other problems with the conventional high-precision pendulum mounting fixture structure.

Therefore, the invention aims to solve the problem that the pendulum-type instrument in the prior art is generally installed on a fixed support through a fixed bolt and the like, so that the pendulum-type instrument is inconvenient to assemble and disassemble and the measurement efficiency of workers is influenced.

In order to solve the technical problems, the invention provides the following technical scheme: a fixing framework for mounting a high-precision pendulum instrument comprises a supporting assembly, a supporting assembly and a fixing assembly, wherein the supporting assembly comprises a base, a pendulum instrument body, a supporting rod, a supporting piece and an adjusting piece, the supporting rod is fixed to the top of the base, the supporting piece is fixed to the top end of the supporting rod, the adjusting piece is arranged on the supporting piece, and the pendulum instrument body is arranged on the supporting piece; and an installation component, which is arranged on the regulating part and comprises an installation plate, a connection column, a fixed box, a top cover, a driving part, a triggering part, a fastener and a limiting part, wherein the installation plate is fixed on one side of the pendulum instrument body, the fixed box is fixed on the regulating part, the top cover is arranged on the top of the fixed box, an installation groove and a connection groove are arranged on the fixed box, the connection groove is arranged on two sides of the installation groove, the driving part is arranged in the installation groove, the triggering part is arranged in the connection groove, the fastener is arranged below the driving part, and the limiting part is arranged below the fastener and corresponds to the fastener.

As a preferable scheme of the fixing framework for mounting the high-precision pendulum instrument, the present invention comprises: the supporting piece comprises a supporting plate, a supporting tube, a fixing box and a handle, the supporting plate is fixed to the top end of the supporting rod, the supporting tube is fixed to the two sides of the top of the supporting plate, the fixing box is arranged at the top end of the supporting tube, and the handle is fixed to the top of the fixing box.

As a preferable scheme of the fixing framework for mounting the high-precision pendulum instrument, the present invention comprises: the adjusting part comprises a threaded rod, a first gear, a second gear and a rotating handle, the threaded rod is rotated to be connected into the supporting pipe, the first gear is fixed at the top end of the threaded rod and is located in the fixed box, the second gear is rotatably connected into the fixed box, and two sides of the second gear are respectively meshed with the first gear.

As a preferable scheme of the fixing framework for mounting the high-precision pendulum instrument, the present invention comprises: the adjusting part further comprises a movable block and a connecting rod, the movable block is in threaded connection with the outer side of the threaded rod, the connecting rod is fixed to the inner side of the movable block, a sliding groove is formed in the supporting tube, the connecting rod slides in the sliding groove, and the fixed box is fixed between the connecting rods.

As a preferable scheme of the fixing framework for mounting the high-precision pendulum instrument, the present invention comprises: the driving piece comprises a movable ring, a gear ring and a sliding block, the movable ring slides in the mounting groove, the gear ring is fixed at the top of the outer side of the movable ring, the sliding block is fixed at the two sides of the movable ring, chutes are formed in the two sides of the inner wall of the mounting groove, the sliding block slides in the chutes, and the connecting column is located in the movable ring.

As a preferable scheme of the fixing framework for mounting the high-precision pendulum instrument, the present invention comprises: trigger the piece and include third gear, bull stick and trigger block, the bull stick rotate connect in the spread groove, the third gear is fixed in the bull stick top, and with the ring gear meshing, trigger block is fixed in the bull stick side.

As a preferable scheme of the fixing framework for mounting the high-precision pendulum instrument, the present invention comprises: the fastener includes and accepts the piece, changes board and flange, it is fixed in to accept the piece the mounting groove inner wall both sides, change the board rotate connect in accept the piece top, the flange with it is fixed to change the board bottom, seted up on the spliced pole and accepted the groove, it is located to change the board accept the inslot.

As a preferable scheme of the fixing framework for mounting the high-precision pendulum instrument, the present invention comprises: the fastener still includes first spring and push rod, first spring both ends respectively with the commentaries on classics board with mounting groove inner wall is fixed, the push rod is fixed in the commentaries on classics board outside, its one end extends to the fixed case outside, the last through-hole of having seted up of fixed case, the push rod slide in the through-hole.

As a preferable scheme of the fixing framework for mounting the high-precision pendulum instrument, the present invention comprises: the locating part includes lifter plate, guide block, dog and swash plate, the guide block is fixed in diapire in the mounting groove, the lifter plate slide in on the guide block, and be located the bearing block below, the dog is fixed in the lifter plate top, the swash plate is fixed in lifter plate top one side, and with trigger block cooperation.

As a preferable scheme of the fixing framework for mounting the high-precision pendulum instrument, the present invention comprises: the limiting part further comprises a second spring, and two ends of the second spring are fixed to the bottom wall of the lifting plate and the mounting groove respectively.

The invention has the beneficial effects that: according to the invention, the height of the pendulum instrument can be conveniently adjusted through the supporting assembly when the pendulum instrument is used, so that the measurement accuracy is improved, then the convenience of the pendulum instrument in disassembly and assembly is improved through the mounting assembly, and a plurality of bolts do not need to be screwed by adopting an additional tool, so that the disassembly and assembly efficiency is greatly improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used 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 of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise. Wherein:

fig. 1 is an overall configuration diagram of a fixing structure for mounting a high-precision pendulum instrument.

Fig. 2 is a sectional view showing the connection between the supporting member and the adjusting member of the fixing structure for mounting the high-precision pendulum instrument.

Fig. 3 is a sectional view of a mounting assembly of the fixing frame for mounting a high-precision pendulum instrument.

Fig. 4 is another perspective cross-sectional view of a mounting assembly of the fixed frame for mounting a high precision pendulum instrument.

Fig. 5 is a view showing a structure of a driving member of the fixing structure for mounting the high-precision pendulum instrument.

Fig. 6 is another perspective view of the attachment post of the fixed frame for mounting a high precision pendulum instrument.

Fig. 7 is another view of the fastening member and the limiting member of the fixing structure for mounting the high-precision pendulum instrument.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways than those specifically described and will be readily apparent to those of ordinary skill in the art without departing from the spirit of the present invention, and therefore the present invention is not limited to the specific embodiments disclosed below.

Furthermore, reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one implementation of the invention. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.

Example 1

Referring to fig. 1 to 3, a first embodiment of the present invention provides a fixing framework for mounting a high-precision pendulum instrument, where the fixing framework for mounting a high-precision pendulum instrument includes a supporting component 100 and a mounting component 200, the supporting component 100 is used to support the pendulum instrument, and the mounting component 200 is used to enable the pendulum instrument to be more conveniently mounted on the supporting component 100.

Specifically, the supporting assembly 100 includes a base 101, a pendulum body 102, a supporting rod 103, a supporting member 104, and an adjusting member 105, wherein the supporting rod 103 is fixed on the top of the base 101, the supporting member 104 is fixed on the top end of the supporting rod 103, the adjusting member 105 is disposed on the supporting member 104, and the pendulum body 102 is disposed on the supporting member 104.

The base 101 has three sides, and lead screw and thread bush are all installed to every tip for adjust the adjustment of this equipment, make it can the level place on the road surface when the test, and bracing piece 103 and support piece 104 are used for supporting pendulum-type appearance body 102, then through the height of the adjustable pendulum-type appearance body 102 of regulating part 105, make it more convenient when measuring.

The mounting assembly 200 is disposed on the adjusting element 105, and includes a mounting plate 201, a connecting column 202, a fixing box 203, a top cover 204, a driving element 205, a triggering element 206, a fastening element 207 and a limiting element 208, the mounting plate 201 is fixed to one side of the pendulum body 102, the fixing box 203 is fixed to the adjusting element 105, the top cover 204 is disposed at the top of the fixing box 203, the fixing box 203 is provided with a mounting groove S1 and a connecting groove S2, the connecting groove S2 is located on two sides of the mounting groove S1, the driving element 205 is located in the mounting groove S1, the triggering element 206 is located in the connecting groove S2, the fastening element 207 is located below the driving element 205, the limiting element 208 is located below the fastening element 207 and corresponds to the fastening element.

Be L shape between mounting panel 201 and the spliced pole 202, its one side is fixed on pendulum-type appearance body 102, the opposite side is pegged graft in fixed case 203, be used for installing pendulum-type appearance body 102, when spliced pole 202 is installed in fixed case 203, through driving piece 205, trigger piece 206, linkage between fastener 207 and the locating part 208 is spacing and fixed to spliced pole 202, and make its installation more firm through the gravity of pendulum-type appearance body 102 self, this process need not the staff and uses extra instrument or bolt, very big improvement the installation effectiveness.

Example 2

Referring to fig. 1 and 2, a second embodiment of the present invention is based on the previous embodiment.

Specifically, the supporting member 104 includes a supporting plate 104a, a supporting tube 104b, a fixing box 104c and a handle 104d, the supporting plate 104a is fixed at the top end of the supporting rod 103, the supporting tube 104b is fixed at two sides of the top of the supporting plate 104a, the fixing box 104c is arranged at the top end of the supporting tube 104b, and the handle 104d is fixed at the top of the fixing box 104 c.

The supporting plate 104a is rectangular, the supporting tubes 104b are rectangular and symmetrically distributed on the top of the supporting plate 104a, the fixing box 104c is fixed at the top ends of the two supporting tubes 104b, and the handle 104d is U-shaped and is used for facilitating workers to lift the equipment.

The adjusting member 105 includes a threaded rod 105a, a first gear 105b, a second gear 105c and a rotating handle 105d, the threaded rod 105a is rotated to be connected to the supporting tube 104b, the first gear 105b is fixed to the top end of the threaded rod 105a and is located in the fixed box 104c, and the second gear 105c is rotatably connected to the fixed box 104c, and both sides of the second gear are respectively engaged with the two first gears 105 b.

When the height of the pendulum body 102 needs to be adjusted, the second gear 105c is manually rotated through the rotating handle 105d, and the first gear 105b and the threaded rod 105a are driven to rotate through the second gear 105c, so that the height of the pendulum body 102 can be adjusted.

The adjusting member 105 further comprises a movable block 105e and a connecting rod 105f, the movable block 105e is connected to the outer side of the threaded rod 105a in a threaded manner, the connecting rod 105f is fixed to the inner side of the movable block 105e, a sliding groove M is formed in the supporting tube 104b, the connecting rod 105f slides in the sliding groove M, and the fixing box 203 is fixed between the two connecting rods 105 f.

The movable block 105e is rectangular, the outer side of the movable block is in contact with the inner wall of the supporting tube 104b, the movable block 105e is limited, the movable block 105e is prevented from deviating in the up-and-down moving process, the movable block 105e and the connecting rod 105f are arranged in two groups and distributed on the threaded rod 105a up and down, when the threaded rod 105a rotates, the movable block 105e and the connecting rod 105f can be driven to move up and down, and then the mounting assembly 200 and the pendulum instrument body 102 are driven to move up and down to adjust the measuring height of the pendulum instrument body.

Example 3

Referring to FIGS. 3-7, a third embodiment of the present invention is based on the first two embodiments.

Specifically, the driving member 205 includes a movable ring 205a, a ring gear 205b and a sliding block 205c, the movable ring 205a slides in the mounting groove S1, the ring gear 205b is fixed on the top of the outer side of the movable ring 205a, the sliding block 205c is fixed on two sides of the movable ring 205a, two sides of the inner wall of the mounting groove S1 are both provided with a chute K, the sliding block 205c slides in the chute K, and the connecting column 202 is located in the movable ring 205 a.

The chute K is spirally downward and symmetrically distributed on the inner wall of the mounting groove S1, when the movable ring 205a moves downward, the slide block 205c slides in the chute K to drive the movable ring 205a to rotate while moving downward, an annular groove is formed in the movable ring 205a, two sides of the top of the annular groove are open, and two sides of the connecting column 202 are fixed with a bump which can enter the annular groove; an inserting plate is fixed at the bottom of the mounting plate 201, a slot is formed in the top cover 204, and the inserting plate is inserted into the slot after the mounting is completed, so that the pendulum instrument body 102 is prevented from being deviated left and right in the using process and the use of the pendulum instrument body is prevented from being influenced.

The triggering member 206 includes a third gear 206a, a rotating rod 206b, and a triggering block 206c, the rotating rod 206b is rotatably connected in the connecting groove S2, the third gear 206a is fixed on the top end of the rotating rod 206b and is engaged with the gear ring 205b, and the triggering block 206c is fixed on the side of the rotating rod 206 b.

The length of the third gear 206a is greater than the length of the path of the movable ring 205a moving up and down, so that when the movable ring 205a moves up and down, the gear ring 205b is always engaged with the third gear 206a, when the movable ring 205a rotates, the third gear 206a and the rotating rod 206b are driven to rotate by the gear ring 205b, and the number of teeth of the third gear 206a is one-half of the number of teeth of the gear ring 205 b.

The fastening piece 207 comprises a bearing block 207a, a rotating plate 207b and a convex plate 207c, the bearing block 207a is fixed on two sides of the inner wall of the mounting groove S1, the rotating plate 207b is rotatably connected to the top of the bearing block 207a, the convex plate 207c is fixed with the bottom of the rotating plate 207b, a bearing groove L is formed in the connecting column 202, and the rotating plate 207b is located in the bearing groove L.

The bearing block 207a is rectangular and is used for supporting the rotating plates 207b, when the connecting column 202 moves downwards to the lowest point, the two rotating plates 207b rotate and are clamped in the bearing grooves L, and therefore the connecting column 202 is limited and fixed through the rotating plates 207b and is prevented from moving up and down in the using process.

The fastener 207 further comprises a first spring 207d and a push rod 207e, two ends of the first spring 207d are respectively fixed with the inner walls of the rotating plate 207b and the mounting groove S1, the push rod 207e is fixed on the outer side of the rotating plate 207b, one end of the push rod extends to the outer side of the fixing box 203, a through hole J is formed in the fixing box 203, and the push rod 207e slides in the through hole J.

The first spring 207d pushes the rotating plate 207b to rotate towards the inner side, so that the rotating plate 207b can be clamped in the receiving groove L more stably, the push rod 207e is used for resetting the rotating plate 207b, and when the pendulum body 102 needs to be detached, the push rod 207e is manually stirred, the rotating plate 207b is driven to rotate through the push rod 207e, so that the rotating plate 207b is separated from the receiving groove L.

The limiting member 208 includes a lifting plate 208a, a guide block 208b, a stopper 208c and a sloping plate 208d, the guide block 208b is fixed to the inner bottom wall of the mounting groove S1, the lifting plate 208a slides on the guide block 208b and is located below the receiving block 207a, the stopper 208c is fixed to the top of the lifting plate 208a, and the sloping plate 208d is fixed to one side of the top of the lifting plate 208a and is matched with the trigger block 206 c.

The two guide blocks 208b are arranged for limiting the lifting plate 208a and preventing the lifting plate 208a from deviating in the process of moving up and down, the position of the stop block 208c corresponds to that of the convex plate 207c, when the rotating plate 207b rotates outwards to be in contact with the inner wall of the mounting groove S1 and the lifting plate 208a moves upwards, the stop block 208c is used for blocking the convex plate 207c, so that the rotating plate 207b cannot be pushed inwards by the first spring 207d in the initial state, and the use convenience of the rotating plate 207b is improved; the inclined plate 208d is inclined, the contact position between the trigger block 206c and the inclined plate 208d is chamfered, when the rotating rod 206b rotates, the trigger block 206c presses the inclined plate 208d, and the lifting plate 208a is pressed downwards by the inclined plate 208d, so that the stopper 208c is separated from the convex plate 207c, and the rotating plate 207b can rotate inwards to perform limiting operation.

The position-limiting member 208 further includes a second spring 208e, both ends of which are fixed to the bottom wall of the lifting plate 208a and the mounting groove S1, respectively.

The second spring 208e provides an upward moving force to the lifting plate 208a, and when the rotating rod 206b rotates in the reverse direction, the trigger block 206c is separated from the inclined plate 208d, so that the lifting plate 208a is pushed by the second spring 208e to move upward and return, thereby facilitating the subsequent operation thereof.

When in use and installation, the base 101 is placed at a designated position, then the pendulum instrument body 102 is installed on the fixed box 203, so that the connecting column 202 is inserted into the fixed box 203, the movable ring 205a is pressed downwards by the gravity of the pendulum instrument body 102, at the moment, the protruding block slides in the annular groove, the protruding block is separated from the opening at the top of the annular groove, and further the connecting column 202 is prevented from moving upwards, the movable ring 205a rotates through the sliding block 205c and the inclined groove K in the downward moving process, so that the gear ring 205b drives the third gear 206a to rotate, when the movable ring 205a moves downwards to the lowest point, the trigger block 206c on the rotating rod 206b presses the inclined plate 208d, and presses the lifting plate 208a downwards, so that the stop block 208c is separated from the convex plate 207c, at the moment, the rotating plate 207b is pushed by the first spring 207d to rotate to the bearing groove L, so that the connecting column 202 is limited and fixed by the rotating plate 207b, the installation operation can be completed by preventing the swinging plate from moving up and down in the using process, after the installation is completed, the second gear 105c is manually rotated through the rotating handle 105d, the first gear 105b and the threaded rod 105a are driven to rotate through the second gear 105c, the movable block 105e and the connecting rod 105f can be driven to move up and down when the threaded rod 105a rotates, the height of the pendulum type instrument body 102 can be adjusted, when the disassembly is needed, the push rod 207e is manually stirred, the rotating plate 207b is driven to rotate through the push rod 207e to be separated from the bearing groove L, at the moment, the pendulum type instrument body 102 and the connecting column 202 are lifted upwards, the movable ring 205a rotates in the opposite direction in the upward process and drives the rotating rod 206b to rotate in the opposite direction, so that the trigger block 206c is separated from the inclined plate 208d, then the lifting plate 208a is pushed upwards through the second spring 208e to reset, and the rotating plate 207b is limited through the stop block 208c and the convex plate 207c, prevent that it from rotating to the inboard, influence follow-up use, can demolish pendulum-type appearance body 102 this moment, need not the staff in this dismouting process and use extra instrument or bolt etc. very big improvement staff's dismouting efficiency.

It should be noted that the above-mentioned embodiments are only for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the claims of the present invention.

Claims

1. The utility model provides a high accuracy pendulum-type appearance installation is with fixed framework which characterized in that: comprises the steps of (a) preparing a mixture of a plurality of raw materials,

the supporting assembly (100) comprises a base (101), a pendulum instrument body (102), a supporting rod (103), a supporting piece (104) and an adjusting piece (105), wherein the supporting rod (103) is fixed to the top of the base (101), the supporting piece (104) is fixed to the top end of the supporting rod (103), the adjusting piece (105) is arranged on the supporting piece (104), and the pendulum instrument body (102) is arranged on the supporting piece (104); and

the mounting assembly (200) is arranged on the adjusting piece (105) and comprises a mounting plate (201), a connecting column (202), a fixed box (203), a top cover (204), a driving piece (205), a trigger piece (206), a fastener (207) and a limiting piece (208), wherein the mounting plate (201) is fixed on one side of the pendulum instrument body (102), the fixed box (203) is fixed on the adjusting piece (105), the top cover (204) is arranged at the top of the fixed box (203), a mounting groove (S1) and a connecting groove (S2) are formed in the fixed box (203), the S2 is positioned on two sides of the mounting groove (S1), the driving piece (205) is positioned in the mounting groove (S1), the trigger piece (206) is positioned in the S2), the fastener (207) is positioned below the driving piece (205), and the limiting piece (208) is positioned below the fastener (207), and corresponds thereto.

2. The high-precision pendulum mounting fixture structure of claim 1, wherein: the supporting piece (104) comprises a supporting plate (104 a), a supporting tube (104 b), a fixing box (104 c) and a handle (104 d), the supporting plate (104 a) is fixed at the top end of the supporting rod (103), the supporting tube (104 b) is fixed with two sides of the top of the supporting plate (104 a), the fixing box (104 c) is arranged at the top end of the supporting tube (104 b), and the handle (104 d) is fixed at the top of the fixing box (104 c).

3. The high-precision pendulum mounting fixture structure of claim 2, wherein: the adjusting piece (105) comprises a threaded rod (105 a), a first gear (105 b), a second gear (105 c) and a rotating handle (105 d), the threaded rod (105 a) is connected in the supporting pipe (104 b) in a rotating mode, the first gear (105 b) is fixed to the top end of the threaded rod (105 a) and located in the fixed box (104 c), the second gear (105 c) is connected in the fixed box (104 c) in a rotating mode, and two sides of the second gear are meshed with the two first gears (105 b) respectively.

4. The high-precision pendulum mounting fixture structure of claim 3, wherein: regulating part (105) still include movable block (105 e) and connecting rod (105 f), movable block (105 e) threaded connection in the threaded rod (105 a) outside, connecting rod (105 f) are fixed in movable block (105 e) are inboard, spout (M) have been seted up on stay tube (104 b), connecting rod (105 f) slide in spout (M), fixed case (203) are fixed in two between connecting rod (105 f).

5. The high precision pendulum mounting fixture structure of any one of claims 1, 2, 3, and 4, wherein: driving piece (205) are including activity ring (205 a), ring gear (205 b) and slider (205 c), activity ring (205 a) slide in mounting groove (S1), ring gear (205 b) are fixed in activity ring (205 a) outside top, slider (205 c) are fixed in activity ring (205 a) both sides, chute (K) have all been seted up to mounting groove (S1) inner wall both sides, slider (205 c) slide in chute (K), spliced pole (202) are located in activity ring (205 a).

6. The high-precision pendulum mounting fixture structure of claim 5, wherein: the trigger member (206) comprises a third gear (206 a), a rotating rod (206 b) and a trigger block (206 c), the rotating rod (206 b) is rotatably connected into the connecting groove (S2), the third gear (206 a) is fixed at the top end of the rotating rod (206 b) and is meshed with the gear ring (205 b), and the trigger block (206 c) is fixed on the side surface of the rotating rod (206 b).

7. The high-precision pendulum mounting fixture structure of claim 6, wherein: fastener (207) are including accepting piece (207 a), commentaries on classics board (207 b) and flange (207 c), it is fixed in to accept piece (207 a) mounting groove (S1) inner wall both sides, change board (207 b) rotate connect in accept piece (207 a) top, flange (207 c) with it is fixed to change board (207 b) bottom, it accepts groove (L) to have seted up on spliced pole (202), it is located to change board (207 b) accept in the groove (L).

8. The high-precision pendulum mounting fixture structure of claim 7, wherein: fastener (207) still include first spring (207 d) and push rod (207 e), first spring (207 d) both ends respectively with it is fixed to change board (207 b) with mounting groove (S1) inner wall, push rod (207 e) are fixed in change board (207 b) outside, its one end extends to fixed case (203) outside, through-hole (J) have been seted up on fixed case (203), push rod (207 e) slide in through-hole (J).

9. The high-precision pendulum mounting fixture structure according to claim 7 or 8, wherein: the limiting piece (208) comprises a lifting plate (208 a), a guide block (208 b), a stop block (208 c) and an inclined plate (208 d), the guide block (208 b) is fixed on the inner bottom wall of the mounting groove (S1), the lifting plate (208 a) slides on the guide block (208 b) and is located below the bearing block (207 a), the stop block (208 c) is fixed on the top of the lifting plate (208 a), and the inclined plate (208 d) is fixed on one side of the top of the lifting plate (208 a) and is matched with the trigger block (206 c).

10. The high-precision pendulum mounting fixture structure of claim 9, wherein: the stopper (208) further includes a second spring (208 e), and both ends of the second spring are fixed to the bottom wall of the lifting plate (208 a) and the mounting groove (S1), respectively.