CN115560195A

CN115560195A - Observation device capable of adjusting precision

Info

Publication number: CN115560195A
Application number: CN202211133799.2A
Authority: CN
Inventors: 孙志坚; 辛刚
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-09-19
Filing date: 2022-09-19
Publication date: 2023-01-03

Abstract

The invention provides an observation device capable of adjusting precision, which relates to the field of observation devices and comprises: the control wheel, the control wheel rotates to be connected in the inside of adjusting the seat, the unable regulation precision of the fine-tuning pole of observation device bottom mount pad has been solved, it is fixed to drive the observation angle that observation device changed in the unit number of rotations of fine-tuning pole promptly, can't adjust the problem that uses to suitable regulation precision, adjusting part can finely tune the use angle of adjusting the seat, fine setting precision can freely change the use simultaneously (having changed promptly and can drive the regulation seat pivoted angle in the action bars unit number of rotations), can adapt to the observation use to different distances and topography, it is convenient fast to adjust.

Description

Observation device capable of adjusting precision

Technical Field

The invention relates to the technical field of observation devices, in particular to an observation device capable of adjusting precision.

Background

All need use observation device in survey and drawing trade and each item engineering survey to the realization is surveyd and is taken notes each item data to topography and landform, and most common observation device for example spirit level, theodolite etc. need use after installing the leveling on the support through the mount pad of bottom integral type.

When the existing observation device is used, the adjustment precision of the fine adjustment rod of the bottom mounting seat cannot be adjusted, namely, the observation angle for driving the observation device to change in the number of rotation turns of the unit of the fine adjustment rod is fixed and cannot be adjusted, so that the accuracy of the observation device cannot be adjusted in observation time, the observation device cannot be adjusted to a proper adjustment precision for use, and the device is poor in flexibility and adaptability and low in practicability.

Disclosure of Invention

In view of the above, the present invention provides an observation device capable of adjusting precision, which has a limiting component and an adjusting component, wherein the limiting component can perform an unlocked positioning function on an adjusting seat in a reset state, that is, a certain damping force exists in rotation of the adjusting seat, so as to avoid occurrence of an accidental movement phenomenon of the adjusting seat in observation, and meanwhile, the wide-angle rapid adjustment and use of the adjusting seat and a top observation device thereof can be realized, and the observation device is convenient to operate.

The invention provides an observation device capable of adjusting precision, which specifically comprises: the base body assembly comprises a leveling base, a positioning base and an adjusting base, the top of the leveling base is fixedly arranged at the bottom of the positioning base, the bottom of the positioning base is fixedly connected with the supporting frame, the adjusting base is rotatably connected inside the positioning base, and the top of the adjusting base is fixedly provided with an observation device; the limiting assembly comprises a positioning worm wheel, an adjusting wheel and a control wheel, the positioning worm wheel is rotatably connected inside the adjusting seat, the adjusting wheel is rotatably connected inside the positioning seat, the control wheel is rotatably connected inside the adjusting seat, and the positioning worm wheel, the adjusting wheel and the control wheel are sequentially arranged inside the adjusting seat from top to bottom; the adjusting part, the adjusting part is including adjusting worm, actuating lever, drive wheel, location shift fork, locating lever and action bars, adjust the worm and rotate to connect in the inside of adjusting the seat, and the actuating lever rotates to connect in the inside of adjusting the seat, the drive wheel rotates to be connected in the inside of location shift fork, and the location shift fork is pegged graft in the inside of adjusting the seat, the locating lever rotates to be connected in the inside of adjusting the seat, and the action bars is pegged graft in the inside of adjusting the seat.

Furthermore, the outside of regulating wheel is equipped with adjusting gear, and the inside of positioning seat is equipped with the regulation ring gear, and adjusting gear and the teeth of a cogwheel interlock transmission of adjusting ring gear.

Furthermore, damping gears are arranged at the top of the control wheel and the bottom of the adjusting wheel, and gear teeth of the damping gears of the control wheel and the adjusting wheel are meshed with each other.

Furthermore, the bottom of location worm wheel is equipped with the synchronizing bar that the cross-section is regular polygon, and the inside of control wheel is equipped with the synchronization groove, and the body of rod of synchronizing bar passes the regulating wheel, and the body of rod of synchronizing bar pegs graft in the inside of synchronization groove.

Furthermore, the bottom of the control wheel is provided with a damping top spring, and two ends of the damping top spring are respectively abutted against the bottom of the control wheel and the inside of the adjusting seat.

Furthermore, a coaxial change wheel is arranged on the side face of the rod body of the adjusting worm, the cross section of the change wheel is trapezoidal, the wheel body of the driving wheel tightly abuts against the side face of the wheel body of the change wheel, and the driving wheel and the change wheel are in friction transmission.

Furthermore, the inside of drive wheel is equipped with the drive groove, and the body of rod cross-section of actuating lever is regular polygon, and the actuating lever is pegged graft in the inside in drive groove.

Furthermore, the rod body of locating lever outside is equipped with the screw thread, and the locating lever is twisted through the rod body screw thread and is connect in the inside of location shift fork.

Furthermore, an operating gear is arranged at the inner end of the rod body of the operating rod, a driving tooth groove is formed in the rod body of the driving rod, a separation top spring is arranged in the operating gear, two ends of the separation top spring are respectively abutted to the inside of the operating gear and the inside of the driving rod, and the operating gear is separated from the inside of the driving tooth groove in the reset state.

Advantageous effects

1. The device is when using, spacing subassembly can carry out non-locking nature locate function to the adjustment seat when the state that resets, there is certain damping dynamics promptly in the rotation of adjusting the seat, thereby avoid adjusting the phenomenon that the seat appears unexpected removal when surveing and take place, the wide-angle quick adjustment that also can realize adjusting seat and top observation device simultaneously uses, high durability and convenient operation, simultaneously adjusting component can finely tune the use angle of adjustment seat, fine setting precision can freely change the use simultaneously (having changed promptly and having driven the adjustment seat pivoted angle in the action bars unit number of turns of rotation), can adapt to the observation use to different distances and topography, it is convenient fast to adjust, the flexibility of the device has been improved, adaptability and practicality.

2. The device is when the reset condition, spacing subassembly can play non-locking nature locate function to the regulation seat, the device is when the reset condition, because the worm gear has one-way transmission's characteristic, thereby the unable rotation of location worm wheel, the synchronizing bar of location worm wheel can restrict the unable rotation of control wheel through the synchronizing groove again, thereby the control wheel is by jack-up under the effect of damping top spring, thereby the teeth of a cogwheel interlock of the damping gear of control wheel and regulating wheel, thereby realized spacing to the rotation action of regulating wheel, the regulating gear of regulating wheel again with the teeth of a cogwheel interlock of adjusting the ring gear, thereby make when the rotation dynamics of regulating the seat is lighter than the interlock dynamics that the damping gear obtained through damping top spring, the unable rotation of regulation seat, when the rotation dynamics of regulating the seat is greater than the interlock dynamics that the damping gear obtained through damping top spring, the hypotenuse of two damping gears can extrude each other and realize regulating seat pivoted function, thereby when the use angle of needs wide-angle quick location regulation seat, only need the manual rotation regulation seat can realize that the regulation takes the damping and fix a position the use, convenient operation is nimble, adjust in a flexible.

3. Can realize the fine setting to adjustment seat use angle through adjusting part, when the state that resets, this operating gear is in the state of deviating from the inside of drive tooth's socket under the effect that breaks away from the top spring, thereby it can not realize the fine setting function to rotate the action bars this moment, thereby avoid appearing the phenomenon that the maloperation regulation causes adjustment seat to change use angle, stable in use, when the use angle of needs adjustment seat, only need press and rotate the action bars, the action bars is pressed the back operating gear and is inserted the inside of drive tooth's socket, thereby can drive the actuating lever synchronous rotation when the action bars rotates this moment, the actuating lever can drive the drive wheel through the drive groove and rotate when rotating, the drive wheel can drive the regulation worm through the change gear again and rotate when rotating, the synchronizing lever that can drive the control wheel through the location worm wheel again when adjusting the worm rotates, thereby the regulating wheel synchronous rotation of the teeth of interlock transmission effect regulating wheel at the damping gear of control wheel and regulating wheel, the regulating wheel can drive the slow rotation of adjustment seat through the regulation ring at the rotation regulating gear, thereby realized the function of fine setting adjustment seat use angle, stable in use, convenient adjustment.

4. The device's fine setting precision can freely change the use through rotating the locating lever (having changed promptly and can drive regulation seat pivoted angle in the action bars unit rotates the number of turns), can drive the location shift fork through body of rod screw when the locating lever rotates and remove, the drive wheel can be followed the removal of location shift fork and change the position of use, the frictional contact position that drive wheel and cross-section are trapezoidal change gear has been changed promptly, the drive ratio between drive wheel and the change gear has been changed promptly, thereby realized changing the function that can drive regulation seat pivoted angle in the action bars unit rotates the number of turns, can adapt to the observation of different precisions and use the regulation, adaptability is extremely strong.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings of the embodiments will be briefly described below.

The drawings in the following description relate to only some embodiments of the invention and are not intended to limit the invention.

In the drawings:

fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a structural schematic view of the seat assembly of the present invention after disassembly.

Fig. 3 is a schematic structural view of the disassembled limiting assembly of the present invention.

Fig. 4 is a schematic view of the structure at the bottom of fig. 3 according to the present invention.

Fig. 5 is a schematic view of the disassembled adjusting assembly of the present invention.

Fig. 6 is a schematic view of the internal structure of the present invention in the reset state.

FIG. 7 is a schematic view of the inner structure of the manual rotary adjusting base of the present invention for adjusting a large angle.

Fig. 8 is a schematic view of the inner structure of the push lever according to the present invention.

Fig. 9 is a schematic structural diagram of the inside of the fine adjustment precision adjusting device of fig. 8 after use.

Fig. 10 is an enlarged structural view of the part a in fig. 6 according to the present invention.

Fig. 11 is an enlarged structural view of the part B in fig. 6 according to the present invention.

Fig. 12 is an enlarged schematic view of the portion C of fig. 7 according to the present invention.

Fig. 13 is an enlarged schematic view of the position D in fig. 8 according to the present invention.

Fig. 14 is an enlarged schematic view of the portion E of fig. 9 according to the present invention.

List of reference numerals

1. A base assembly; 101. a leveling seat; 102. positioning seats; 1021. adjusting the toothed ring; 103. an adjusting seat; 2. a limiting component; 201. positioning the worm gear; 2011. a synchronization rod; 202. an adjustment wheel; 2021. an adjusting gear; 203. a control wheel; 2031. a damping gear; 2032. a synchronization slot; 2033. a damping top spring; 3. an adjustment assembly; 301. adjusting the worm; 3011. a change wheel; 302. a drive rod; 3021. a driving gullet; 303. a drive wheel; 3031. a drive slot; 304. positioning a shifting fork; 305. positioning a rod; 306. an operating lever; 3061. an operating gear; 3062. and disengaging the top spring.

Detailed Description

In order to make the objects, solutions and advantages of the technical solutions of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings of specific embodiments of the present invention. Unless otherwise indicated, terms used herein have the ordinary meaning in the art. Like reference numerals in the drawings denote like elements.

Example (b): please refer to fig. 1 to 14:

the invention provides an observation device capable of adjusting precision, which comprises a base body assembly 1, wherein the base body assembly 1 comprises a leveling base 101, a positioning base 102 and an adjusting base 103, the top of the leveling base 101 is fixedly arranged at the bottom of the positioning base 102, the bottom of the positioning base 102 is fixedly connected with a supporting frame, the adjusting base 103 is rotatably connected inside the positioning base 102, and the top of the adjusting base 103 is fixedly provided with an observation device; the limiting assembly 2 comprises a positioning worm wheel 201, an adjusting wheel 202 and a control wheel 203, the positioning worm wheel 201 is rotatably connected inside the adjusting seat 103, the adjusting wheel 202 is rotatably connected inside the positioning seat 102, the control wheel 203 is rotatably connected inside the adjusting seat 103, and the positioning worm wheel 201, the adjusting wheel 202 and the control wheel 203 are sequentially installed inside the adjusting seat 103 from top to bottom; adjusting part 3, adjusting part 3 is including adjusting worm 301, the actuating lever 302, drive wheel 303, location shift fork 304, locating lever 305 and action bars 306, adjust worm 301 and rotate the inside of connecting in adjusting seat 103, and actuating lever 302 rotates the inside of connecting in adjusting seat 103, drive wheel 303 rotates the inside of connecting in location shift fork 304, and location shift fork 304 pegs graft in the inside of adjusting seat 103, locating lever 305 rotates the inside of connecting in adjusting seat 103, and action bars 306 pegs graft in the inside of adjusting seat 103.

Wherein, the bottom of the control wheel 203 is provided with a damping top spring 2033, and two ends of the damping top spring 2033 are respectively abutted against the bottom of the control wheel 203 and the inside of the adjusting seat 103, the top of the control wheel 203 and the bottom of the adjusting wheel 202 are both provided with a damping gear 2031, and the gear teeth of the damping gear 2031 of the control wheel 203 and the adjusting seat 202 are engaged with each other, in use, the limiting component 2 can play a non-locking positioning function for the adjusting seat 103, when the device is in a reset state, because the worm gear has a characteristic of one-way transmission, the positioning worm wheel 201 can not rotate, the bottom of the positioning worm wheel 201 is provided with a synchronizing rod 2011 with a regular polygon cross section, and the inside of the control wheel 203 is provided with a synchronizing groove 2032, the rod body of the synchronizing rod 2011 passes through the adjusting wheel 202, and the rod body of the synchronizing rod 2011 is inserted into the synchronizing groove 2032, the synchronizing rod 2011 of the positioning worm wheel 201 can also restrict the control wheel 203 from rotating through the synchronizing groove 2032, thereby the control wheel 203 is jacked up under the action of the damping top spring 2033, thereby the gear teeth of the control wheel 203 and the damping gear 2031 of the adjusting wheel 202 are mutually meshed, thereby the limiting of the rotating action of the adjusting wheel 202 is realized, the adjusting gear 2021 is arranged outside the adjusting wheel 202, the adjusting gear 1021 is arranged inside the positioning seat 102, the gear teeth of the adjusting gear 2021 and the adjusting gear 1021 are meshed for transmission, the adjusting gear 2021 of the adjusting wheel 202 is meshed with the gear teeth of the adjusting gear 1021, thereby when the rotating force of the adjusting seat 103 is smaller than the meshing force of the damping gear 2031 obtained by the damping top spring 2033, the adjusting seat 103 can not rotate, when the rotating force of the adjusting seat 103 is larger than the meshing force of the damping gear 2031 obtained by the damping top spring 2033, the bevel edges of the two damping gears 2031 can be mutually squeezed, thereby the rotating function of the adjusting seat 103 is realized, thereby when the use angle of the adjusting seat 103 needs to be quickly positioned, the rotation and the positioning use of the adjusting seat 103 with damping can be realized only by manually rotating the adjusting seat 103, the operation is convenient and flexible, and the adjustment is quick.

The inner end of the rod body of the operating rod 306 is provided with an operating gear 3061, the rod body of the driving rod 302 is internally provided with a driving toothed groove 3021, the operating gear 3061 is internally provided with a disengaging top spring 3062, two ends of the disengaging top spring 3062 are respectively abutted against the inside of the operating gear 3061 and the inside of the driving rod 302, and the operating gear 3061 is disengaged from the inside of the driving toothed groove 3021 in the reset state.

The side surface of the rod body of the adjusting worm 301 is provided with a coaxial change wheel 3011, the cross section of the change wheel 3011 is trapezoidal, the wheel body of the driving wheel 303 tightly abuts against the side surface of the wheel body of the change wheel 3011, and the driving wheel 303 and the change wheel 3011 are in friction transmission, in use, the adjusting assembly 3 can finely adjust the use angle of the adjusting seat 103, when the use angle of the adjusting seat 103 needs to be adjusted, only the operating rod 306 needs to be pressed and rotated, after the operating rod 306 is pressed, the operating gear 3061 is inserted into the driving tooth groove 3021, so that the operating rod 306 can drive the driving rod 302 to synchronously rotate when rotating, the driving wheel 303 is provided with a driving groove 3031, the cross section of the rod body of the driving rod 302 is a regular polygon, the driving rod 302 is inserted into the driving groove 3031, when the driving rod 302 rotates, the driving rod 3031 can drive the driving wheel 303 to rotate through the change wheel 3031, when the driving wheel 303303 rotates, when the driving rod 3011 can drive the adjusting worm 301 to rotate, when the adjusting worm 301 rotates, the adjusting worm 301 rotates through the synchronizing rod 201 to drive the control wheel 203 and the adjusting wheel 202, thereby the adjusting ring 20111 can be conveniently used for adjusting the adjusting seat 202202, and the adjusting mechanism 202 can rotate.

In use, the fine adjustment precision of the device can be freely changed by rotating the positioning rod 305 (namely, the rotating angle of the adjusting seat 103 can be driven in the unit rotating turn of the operating rod 306 is changed), when the positioning rod 305 rotates, the positioning fork 304 can be driven to move by the rod body threads, the driving wheel 303 can change the use position along with the movement of the positioning fork 304, namely, the friction contact position of the driving wheel 303 and the variable-speed wheel 3011 with the trapezoidal section is changed, namely, the transmission ratio between the driving wheel 303 and the variable-speed wheel 3011 is changed, so that the function of changing the rotating angle of the adjusting seat 103 driven in the unit rotating turn of the operating rod 306 is realized, the device can adapt to observation, use and adjustment with different precisions, and the adaptability is strong.

The specific use mode and function of the embodiment are as follows: in the invention, the base body component 1 is arranged on an instrument bracket, the observation can be carried out through an observation device at the top of the base body component 1 after leveling and leveling, the limit component 2 can play a role in non-locking positioning for the adjusting seat 103, when the device is in a reset state, because the worm gear has the characteristic of one-way transmission, the positioning worm gear 201 can not rotate, the synchronizing rod 2011 of the positioning worm gear 201 can limit the control wheel 203 from rotating through the synchronizing groove 2032, the control wheel 203 is jacked up under the action of the damping jacking spring 2033, the gear teeth of the damping gear 2031 of the control wheel 203 and the adjusting wheel 202 are mutually meshed, the rotation action of the adjusting wheel 202 is limited, the adjusting gear 2021 of the adjusting wheel 202 is meshed with the gear teeth of the adjusting ring 1021, and when the rotation force of the adjusting seat 103 is smaller than the meshing force of the damping gear 2031 obtained through the damping jacking spring 2033, the adjusting seat 103 can not rotate, when the rotating force of the adjusting seat 103 is greater than the engaging force of the damping gear 2031 obtained by the damping top spring 2033, the inclined sides of the two damping gears 2031 can extrude each other to realize the rotating function of the adjusting seat 103, so that when the use angle of the adjusting seat 103 needs to be quickly positioned at a large angle, the adjusting seat 103 can be rotated with damping and positioned for use only by manually rotating the adjusting seat 103, when the observation angle of the observation device needs to be finely adjusted, the adjusting component 3 can finely adjust the use angle of the adjusting seat 103, when in a reset state, the operating gear 3061 is in a state of being separated from the driving tooth socket 3021 under the action of the top spring 3062, so that the fine adjustment function can not be realized by rotating the operating rod 306 at the moment, the phenomenon that the use angle of the adjusting seat 103 is changed due to misoperation adjustment is avoided, the use is stable, when the use angle of the adjusting seat 103 needs to be adjusted, only the operating rod 306 needs to be pressed and rotated, after the operating rod 306 is pressed, the operating gear 3061 is inserted into the driving tooth groove 3021, so that the driving rod 302 can be driven to rotate synchronously when the operating rod 306 rotates, the driving rod 302 can drive the driving wheel 303 to rotate through the driving groove 3031 when rotating, the driving wheel 303 can drive the adjusting worm 301 to rotate through the change wheel 3011 when rotating, the adjusting worm 301 can drive the control wheel 203 to rotate through the synchronizing rod 2011 of the positioning worm wheel 201 when rotating, so that the adjusting wheel 202 synchronously rotates under the gear tooth meshing transmission action of the damping gear 2031 of the control wheel 203 and the adjusting wheel 202, and the adjusting wheel 202 can drive the adjusting seat 103 to rotate slowly through the adjusting toothed ring 1021 when rotating the adjusting gear 2021, therefore, the function of finely adjusting the use angle of the adjusting seat 103 is realized, the fine adjustment precision of the device can be freely changed by rotating the positioning rod 305 (namely, the rotation angle of the adjusting seat 103 can be driven in the unit rotation turns of the operating rod 306 is changed), the positioning rod 305 can drive the positioning fork 304 to move through the rod body threads when rotating, the driving wheel 303 can change the use position along with the movement of the positioning fork 304, namely, the friction contact position of the driving wheel 303 and the variable wheel 3011 with the trapezoidal section is changed, namely, the transmission ratio between the driving wheel 303 and the variable wheel 3011 is changed, so that the function of changing the rotation angle of the adjusting seat 103 driven in the unit rotation turns of the operating rod 306 is realized, and the device can adapt to observation, use and adjustment with different precisions.

Finally, it should be noted that, when describing the positions of the components and the matching relationship therebetween, the present invention is usually illustrated by one/a pair of components, however, it should be understood by those skilled in the art that such positions, matching relationship, etc. are also applicable to other/other pairs of components.

The above description is intended to be illustrative of the present invention and not to limit the scope of the invention, which is defined by the claims appended hereto.

Claims

1. Observation device that can adjust the precision, its characterized in that includes: the base body assembly (1), the base body assembly (1) comprises a leveling base (101), a positioning base (102) and an adjusting base (103), the top of the leveling base (101) is fixedly installed at the bottom of the positioning base (102), the bottom of the positioning base (102) is fixedly connected with a supporting frame, the adjusting base (103) is rotatably connected inside the positioning base (102), and an observation device is fixedly installed at the top of the adjusting base (103); the limiting assembly (2) comprises a positioning worm wheel (201), an adjusting wheel (202) and a control wheel (203), the positioning worm wheel (201) is rotatably connected inside the adjusting seat (103), the adjusting wheel (202) is rotatably connected inside the positioning seat (102), the control wheel (203) is rotatably connected inside the adjusting seat (103), and the positioning worm wheel (201), the adjusting wheel (202) and the control wheel (203) are sequentially installed inside the adjusting seat (103) from top to bottom; adjusting part (3), adjusting part (3) is including adjusting worm (301), actuating lever (302), drive wheel (303), location shift fork (304), locating lever (305) and action bars (306), adjust worm (301) and rotate to connect in the inside of adjusting seat (103), and actuating lever (302) rotate to connect in the inside of adjusting seat (103), drive wheel (303) rotate to connect in the inside of location shift fork (304), and location shift fork (304) are pegged graft in the inside of adjusting seat (103), locating lever (305) rotate to connect in the inside of adjusting seat (103), and action bars (306) are pegged graft in the inside of adjusting seat (103).

2. Observation apparatus capable of adjusting accuracy according to claim 1, characterized in that: the outside of regulating wheel (202) is equipped with adjusting gear (2021), and the inside of positioning seat (102) is equipped with adjusts ring gear (1021), and adjusting gear (2021) and the gear teeth interlock transmission of adjusting ring gear (1021).

3. Observation apparatus capable of adjusting accuracy according to claim 1, characterized in that: damping gears (2031) are arranged at the top of the control wheel (203) and the bottom of the adjusting wheel (202), and the gear teeth of the damping gears (2031) of the control wheel (203) and the adjusting wheel (202) are meshed with each other.

4. Observation apparatus capable of adjusting accuracy according to claim 1, characterized in that: the bottom of location worm wheel (201) is equipped with synchronizing bar (2011) that the cross-section is regular polygon, and the inside of control wheel (203) is equipped with synchronization trough (2032), and the body of rod of synchronizing bar (2011) passes regulating wheel (202), and the body of rod of synchronizing bar (2011) is pegged graft in the inside of synchronization trough (2032).

5. Observation apparatus capable of adjusting accuracy according to claim 1, characterized in that: the bottom of the control wheel (203) is provided with a damping top spring (2033), and two ends of the damping top spring (2033) are respectively propped against the bottom of the control wheel (203) and the inside of the adjusting seat (103).

6. Observation apparatus capable of adjusting accuracy according to claim 1, characterized in that: a coaxial change wheel (3011) is arranged on the side face of the rod body of the adjusting worm (301), the cross section of the change wheel (3011) is trapezoidal, the wheel body of the driving wheel (303) tightly abuts against the side face of the wheel body of the change wheel (3011), and friction transmission is conducted between the driving wheel (303) and the change wheel (3011).

7. Observation apparatus capable of adjusting accuracy according to claim 1, characterized in that: the driving wheel (303) is internally provided with a driving groove (3031), the cross section of the rod body of the driving rod (302) is a regular polygon, and the driving rod (302) is inserted in the driving groove (3031).

8. Observation apparatus capable of adjusting accuracy according to claim 1, characterized in that: the outer portion of the rod body of the positioning rod (305) is provided with threads, and the positioning rod (305) is screwed in the positioning shifting fork (304) through the threads of the rod body.

9. Observation apparatus capable of adjusting accuracy according to claim 1, characterized in that: an operation gear (3061) is arranged at the inner end of the rod body of the operation rod (306), a driving tooth socket (3021) is arranged inside the rod body of the driving rod (302), a disengaging top spring (3062) is arranged inside the operation gear (3061), two ends of the disengaging top spring (3062) are respectively abutted against the inside of the operation gear (3061) and the inside of the driving rod (302), and the operation gear (3061) is disengaged from the inside of the driving tooth socket (3021) in a reset state.