Observation device with adjustable precision

Abstract

The application provides an observation device capable of adjusting precision, relates to the field of observation devices, and comprises a control wheel which is rotationally connected in the interior of an adjusting seat. The adjusting precision of the fine adjustment rod of the bottom mounting seat of the observation device cannot be adjusted, that is, the observation angle changed by the fine adjustment rod in a unit rotation circle number is fixed, and the adjusting precision cannot be adjusted to appropriate adjusting precision for use. The adjusting assembly can fine adjust the use angle of the adjusting seat, and the fine adjustment precision can be freely changed (that is, the angle by which the adjusting seat can be rotated in a unit rotation circle number of the operation rod is changed). The adjusting assembly can be adapted to the observation use of different distances and topography, and the adjusting is rapid and convenient.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of observation devices, in particular to an observation device capable of adjusting precision. BACKGROUND

[0002] Observation devices are needed in the surveying industry and various engineering measurements to observe and record various data of the terrain and topography. The most common observation devices, such as the level and the theodolite, need to be installed on the support through the bottom integrated mounting seat for leveling before use.

[0003] The adjustment precision of the micro-adjusting rod of the bottom mounting seat of the existing observation device cannot be adjusted, that is, the observation angle of the observation device changed by the micro-adjusting rod within the unit rotation number of turns is fixed and cannot be adjusted, so the precision of the observation device during observation cannot be adjusted, and it cannot be adjusted to the appropriate adjustment precision for use, and the flexibility and adaptability are poor, and the practicality is not high. SUMMARY

[0004] Therefore, the present application provides an observation device capable of adjusting precision, which has a limiting assembly and an adjusting assembly. The limiting assembly can perform non-locking positioning function on the adjusting seat in the reset state, that is, the rotation of the adjusting seat has a certain damping force, so as to avoid the accidental movement of the adjusting seat during observation, and also can realize the large-angle rapid adjustment of the adjusting seat and the observation device on the top thereof, which is convenient to operate. At the same time, the adjusting assembly can fine-tune the use angle of the adjusting seat, and the fine-tuning precision can be freely changed (that is, the angle of the adjusting seat rotated by the operation rod within the unit rotation number of turns is changed), which can adapt to the observation of different distances and terrain and topography, and the adjustment is rapid and convenient, and the flexibility, adaptability and practicality are very strong.

[0005] The application provides an observation device capable of adjusting precision, and specifically comprises: a seat body assembly, which comprises a leveling seat, a positioning seat and an adjusting seat, the top of the leveling seat is fixedly installed at the bottom of the positioning seat, the bottom of the positioning seat is fixedly connected with a support frame, the adjusting seat is rotationally connected in the positioning seat, and the top of the adjusting seat is fixedly installed with the observation device; a limiting assembly, which comprises a positioning worm gear, an adjusting wheel and a control wheel, the positioning worm gear is rotationally connected in the adjusting seat, the adjusting wheel is rotationally connected in the positioning seat, the control wheel is rotationally connected in the adjusting seat, and the positioning worm gear, the adjusting wheel and the control wheel are sequentially installed in the adjusting seat from top to bottom; and an adjusting assembly, which comprises an adjusting worm, a driving rod, a driving wheel, a positioning fork, a positioning rod and an operating rod, the adjusting worm is rotationally connected in the adjusting seat, the driving rod is rotationally connected in the adjusting seat, the driving wheel is rotationally connected in the positioning fork, the positioning fork is inserted in the adjusting seat, the positioning rod is rotationally connected in the adjusting seat, and the operating rod is inserted in the adjusting seat.

[0006] Further, the outer part of the adjusting wheel is provided with an adjusting gear, and the inner part of the positioning seat is provided with an adjusting gear ring, the gear teeth of the adjusting gear and the adjusting gear ring are engaged in transmission.

[0007] Further, the top of the control wheel and the bottom of the adjusting wheel are provided with damping gears, and the gear teeth of the damping gears of the control wheel and the adjusting wheel are engaged with each other.

[0008] Further, the bottom of the positioning worm gear is provided with a synchronous rod with a cross section of a regular polygon, the inner part of the control wheel is provided with a synchronous groove, the rod body of the synchronous rod passes through the adjusting wheel, and the rod body of the synchronous rod is inserted in the inner part of the synchronous groove.

[0009] Further, the bottom of the control wheel is provided with a damping top spring, and the two ends of the damping top spring abut against the bottom of the control wheel and the inner part of the adjusting seat respectively.

[0010] Further, the rod body side of the adjusting worm is provided with a coaxial speed change wheel, the cross section of the speed change wheel is trapezoidal, the wheel body of the driving wheel abuts against the wheel body side of the speed change wheel, and the driving wheel and the speed change wheel are in friction transmission.

[0011] Further, the inner part of the driving wheel is provided with a driving groove, and the rod body of the driving rod is a regular polygon, the driving rod is inserted in the inner part of the driving groove.

[0012] Further, the rod body of the positioning rod is provided with threads on the outer part, and the positioning rod is screwed in the inner part of the positioning fork through the threads of the rod body.

[0013] Further, the inner end of the rod body of the operating lever is provided with an operating gear, the inner part of the driving rod is provided with a driving gear slot, the inner part of the operating gear is provided with a disengaging spring, and the two ends of the disengaging spring are respectively abutted against the inner part of the operating gear and the inner part of the driving rod, and the operating gear is disengaged from the inner part of the driving gear slot in the reset state.

[0014] Advantages

[0015] 1. When the device is in use, the limiting assembly can position the adjusting seat in a non-locking manner in the reset state, that is, the rotation of the adjusting seat has a certain damping force, thereby avoiding the accidental movement of the adjusting seat during observation, and also achieving the large-angle quick adjustment of the adjusting seat and the top observation device, which is convenient to operate. At the same time, the adjusting assembly can fine-tune the angle of use of the adjusting seat, and the fine-tuning accuracy can be freely changed (that is, the angle of rotation of the adjusting seat driven by the operating lever per unit rotation is changed), which can adapt to the observation of different distances and topography, and the adjustment is quick and convenient, thereby improving the flexibility, adaptability and practicality of the device.

[0016] 2. When the device is in the reset state, the limiting assembly can position the adjusting seat in a non-locking manner. When the device is in the reset state, the positioning worm wheel cannot rotate due to the one-way transmission characteristics of the worm gear, and the synchronous rod of the positioning worm wheel can limit the rotation of the control wheel through the synchronous groove, so that the control wheel is lifted up under the action of the damping top spring, and the teeth of the damping gear of the control wheel and the adjusting wheel are engaged with each other, thereby limiting the rotation of the adjusting wheel. The adjusting gear of the adjusting wheel is engaged with the teeth of the adjusting tooth ring, so that when the rotation force of the adjusting seat is less than the engagement force obtained by the damping gear through the damping top spring, the adjusting seat cannot rotate, and when the rotation force of the adjusting seat is greater than the engagement force obtained by the damping gear through the damping top spring, the two bevels of the damping gear are pressed against each other to realize the rotation of the adjusting seat. Therefore, when a large-angle quick positioning of the angle of use of the adjusting seat is required, the rotation and positioning of the adjusting seat with damping can be realized by manually rotating the adjusting seat, which is convenient and flexible to operate and quick to adjust.

[0017] 3. The fine adjustment of the angle of use of the adjusting seat can be realized by adjusting the adjusting assembly. In the reset state, the operating gear is in the state of being out of the driving tooth groove under the action of the disengaging spring, so that the fine adjustment function cannot be realized by rotating the operating lever at this time, thereby avoiding the phenomenon of misoperation adjustment causing the angle of use of the adjusting seat to change, and the use is stable. When it is necessary to adjust the angle of use of the adjusting seat, the operating lever is only needed to be pressed and rotated. After the operating lever is pressed, the operating gear is inserted into the inside of the driving tooth groove, so that the driving rod can be rotated synchronously when the operating lever is rotated at this time. The driving wheel can be rotated by the driving groove when the driving rod is rotated. The adjusting worm can be rotated by the speed-changing wheel when the driving wheel is rotated. The control wheel can be rotated by the synchronous rod of the positioning worm wheel when the adjusting worm is rotated. The adjusting wheel is synchronously rotated under the tooth engagement transmission action of the control wheel and the damping gear of the adjusting wheel. The adjusting seat can be slowly rotated by the adjusting tooth ring when the adjusting gear is rotated, so that the function of fine adjustment of the angle of use of the adjusting seat is realized, the use is stable, and the adjustment is convenient.

[0018] 4. The fine adjustment precision of the device can be freely changed by rotating the positioning lever (i.e. the angle of rotation of the adjusting seat that can be driven by the operating lever in a unit rotation is changed). The positioning lever can drive the positioning fork to move by the rod body thread when the positioning lever is rotated. The driving wheel can change the position of use by following the movement of the positioning fork, i.e. the friction contact position of the driving wheel and the speed-changing wheel with a trapezoidal cross section is changed, i.e. the transmission ratio between the driving wheel and the speed-changing wheel is changed, so that the function of changing the angle of rotation of the adjusting seat that can be driven by the operating lever in a unit rotation is realized, and the device can adapt to observation adjustment of different precision and has high adaptability. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings of the embodiments will be briefly introduced below.

[0020] The drawings in the following description only relate to some embodiments of the present application, but are not a limitation of the present application.

[0021] In the drawings:

[0022] Figure 1 is a schematic diagram of the overall structure of the present application.

[0023] Figure 2 is a schematic diagram of the structure of the seat body assembly after disassembly.

[0024] Figure 3 is a schematic diagram of the structure of the limiting assembly after disassembly.

[0025] Figure 4 is a schematic diagram of the structure of the bottom of the present application. Figure 3

[0026] ​Figure 5 is the structural diagram of the disassembled adjusting assembly of the present application.

[0027] Figure 6 is the structural diagram of the inside of the present application in the reset state.

[0028] Figure 7 is the structural diagram of the inside of the present application when the manually rotating adjusting seat realizes large-angle adjustment.

[0029] Figure 8 is the structural diagram of the inside of the present application after pressing the operating lever.

[0030] Figure 9 is the structural diagram of the inside of the present application in the fine adjustment precision use. Figure 8

[0031] Figure 10 is the structural diagram of the A part of the present application. Figure 6

[0032] Figure 11 is the structural diagram of the B part of the present application. Figure 6

[0033] Figure 12 is the structural diagram of the C part of the present application. Figure 7

[0034] Figure 13 is the structural diagram of the D part of the present application. Figure 8

[0035] Figure 14 is the structural diagram of the E part of the present application. Figure 9

[0036] List of reference signs

[0037] 1, seat body assembly; 101, leveling seat; 102, positioning seat; 1021, adjusting tooth ring; 103, adjusting seat; 2, limiting assembly; 201, positioning worm gear; 2011, synchronization lever; 202, adjusting wheel; 2021, adjusting gear; 203, control wheel; 2031, damping gear; 2032, synchronization groove; 2033, damping top spring; 3, adjusting assembly; 301, adjusting worm; 3011, speed change wheel; 302, driving lever; 3021, driving tooth groove; 303, driving wheel; 3031, driving groove; 304, positioning shift fork; 305, positioning lever; 306, operating lever; 3061, operating gear; 3062, disengagement top spring. DETAILED DESCRIPTION

[0038] ​​​​​​In order to make the purpose, scheme and advantages of the technical solutions of the present application more clear, the technical solutions of the embodiments of the present application will be described clearly and completely below in combination with the drawings of the specific embodiments of the present application. Unless otherwise specified, the terms used herein have the meanings commonly understood in the art. The same reference numerals in the drawings represent the same components.

[0039] Embodiment: please refer to Figures 1 to 14 as shown:

[0040] The present application provides an observation device capable of adjusting precision, comprising a seat body assembly 1, the seat body assembly 1 comprising a leveling seat 101, a positioning seat 102 and an adjusting seat 103, the top of the leveling seat 101 is fixedly installed at the bottom of the positioning seat 102, and the bottom of the positioning seat 102 is fixedly connected with a support frame, the adjusting seat 103 is rotatably connected inside the positioning seat 102, and the top of the adjusting seat 103 is fixedly installed with an observation device; a limiting assembly 2, the limiting assembly 2 comprising a positioning worm gear 201, an adjusting wheel 202 and a control wheel 203, the positioning worm gear 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 gear 201, the adjusting wheel 202 and the control wheel 203 are sequentially installed inside the adjusting seat 103 from top to bottom; an adjusting assembly 3, the adjusting assembly 3 comprising an adjusting worm 301, a driving rod 302, a driving wheel 303, a positioning fork 304, a positioning rod 305 and an operating rod 306, the adjusting worm 301 is rotatably connected inside the adjusting seat 103, the driving rod 302 is rotatably connected inside the adjusting seat 103, the driving wheel 303 is rotatably connected inside the positioning fork 304, the positioning fork 304 is inserted into the adjusting seat 103, the positioning rod 305 is rotatably connected inside the adjusting seat 103, and the operating rod 306 is inserted into the adjusting seat 103.

[0041] The bottom of the control wheel 203 is provided with a damping top spring 2033, and the two ends of the damping top spring 2033 abut against the bottom of the control wheel 203 and the inside of the adjusting seat 103 respectively. 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 gears 2031 of the control wheel 203 and the adjusting wheel 202 are engaged with each other. In use, the limiting assembly 2 can play a non-locking positioning function for the adjusting seat 103. When the device is in the reset state, the positioning worm wheel 201 cannot rotate self due to the one-way transmission characteristics of the worm gear. The bottom of the positioning worm wheel 201 is provided with a synchronous rod 2011 with a regular polygonal cross section, and the inside of the control wheel 203 is provided with a synchronous groove 2032. The rod body of the synchronous rod 2011 penetrates through the adjusting wheel 202, and the rod body of the synchronous rod 2011 is inserted into the inside of the synchronous groove 2032. The synchronous rod 2011 of the positioning worm wheel 201 can also limit the control wheel 203 from rotating through the synchronous groove 2032, so that the control wheel 203 is lifted up under the action of the damping top spring 2033, so that the gear teeth of the damping gears 2031 of the control wheel 203 and the adjusting wheel 202 are engaged with each other, thereby limiting the rotating action of the adjusting wheel 202. The outside of the adjusting wheel 202 is provided with an adjusting gear 2021, and the inside of the positioning seat 102 is provided with an adjusting gear ring 1021. The gear teeth of the adjusting gear 2021 and the adjusting gear ring 1021 are engaged and transmitted. The adjusting gear 2021 of the adjusting wheel 202 is engaged with the gear teeth of the adjusting gear ring 1021, so that when the rotating force of the adjusting seat 103 is less than the engagement force obtained by the damping gear 2031 through the damping top spring 2033, the adjusting seat 103 cannot rotate. When the rotating force of the adjusting seat 103 is greater than the engagement force obtained by the damping gear 2031 through the damping top spring 2033, the two bevel edges of the damping gears 2031 will be pressed against each other to realize the rotating function of the adjusting seat 103. Therefore, when it is necessary to quickly position the use angle of the adjusting seat 103 at a large angle, the rotating and positioning use of the adjusting seat 103 with damping can be realized by manually rotating the adjusting seat 103, which is convenient and flexible to operate and adjust.

[0042] The rod body inner end of the operating rod 306 is provided with an operating gear 3061, the rod body inside of the driving rod 302 is provided with a driving tooth groove 3021, the inside of the operating gear 3061 is provided with a disengaging top spring 3062, and the two ends of the disengaging top spring 3062 abut against the inside of the operating gear 3061 and the inside of the driving rod 302 respectively. In the reset state, the operating gear 3061 is disengaged from the inside of the driving tooth groove 3021. In use, in the reset state, the operating gear 3061 is in a state of being disengaged from the inside of the driving tooth groove 3021 under the action of the disengaging top spring 3062, so that the fine adjustment function of the rotating operating rod 306 cannot be realized at this time, thereby avoiding the phenomenon that the adjusting seat 103 changes the use angle due to misoperation adjustment, and the use is stable.

[0043] The rod body side of the adjusting worm 301 is provided with a coaxial speed change wheel 3011, the cross section shape of the speed change wheel 3011 is trapezoidal, the wheel body of the driving wheel 303 is tightly pressed against the wheel body side of the speed change wheel 3011, and the driving wheel 303 and the speed change wheel 3011 are driven by friction. In use, the adjusting assembly 3 can realize the fine adjustment of the use angle of the adjusting seat 103. When it is needed to adjust the use angle of the adjusting seat 103, the operating rod 306 is only pressed and rotated. After the operating rod 306 is pressed, the operating gear 3061 is inserted into the inside of the driving gear slot 3021, so that when the operating rod 306 is rotated, the driving rod 302 can be synchronously rotated. The inside of the driving wheel 303 is provided with a driving groove 3031, and the rod body cross section of the driving rod 302 is a regular polygon. The driving rod 302 is inserted into the inside of the driving groove 3031. When the driving rod 302 is rotated, the driving wheel 303 can be driven to rotate through the driving groove 3031. When the driving wheel 303 is rotated, the adjusting worm 301 can be driven to rotate through the speed change wheel 3011. When the adjusting worm 301 is rotated, the control wheel 203 can be driven to rotate through the synchronous rod 2011 of the positioning worm wheel 201. Thus, the adjusting wheel 202 is synchronously rotated through the tooth engagement transmission of the control wheel 203 and the damping gear 2031 of the adjusting wheel 202. When the adjusting gear 2021 is rotated, the adjusting seat 103 can be slowly rotated through the adjusting tooth ring 1021, so that the function of fine adjustment of the use angle of the adjusting seat 103 is realized, the use is stable, and the adjustment is convenient.

[0044] The rod body outside of the positioning rod 305 is provided with a screw thread, and the positioning rod 305 is screwed into the inside of the positioning fork 304 through the rod body screw thread. In use, the fine adjustment precision of the device can be freely changed in use (that is, the angle of the adjusting seat 103 driven by the operating rod 306 in a unit rotation number of the operating rod 306 is changed) by rotating the positioning rod 305. When the positioning rod 305 is rotated, the positioning fork 304 can be driven to move through the rod body screw thread. The driving wheel 303 can change the use position by following the movement of the positioning fork 304, that is, the friction contact position of the driving wheel 303 and the speed change wheel 3011 with a trapezoidal cross section is changed, that is, the transmission ratio between the driving wheel 303 and the speed change wheel 3011 is changed, so that the function of changing the angle of the adjusting seat 103 driven by the operating rod 306 in a unit rotation number of the operating rod 306 is realized. The observation use adjustment of different precision can be adapted, and the adaptability is extremely strong.

[0045] The specific use and role of the embodiment are as follows: in the application, the seat body assembly 1 is installed on the instrument support, and after leveling and adjusting, the observation device on the top of the seat body assembly 1 can be used for observation. The limiting assembly 2 can play a non-locking positioning function on the adjusting seat 103. When the device is in the reset state, the positioning worm wheel 201 cannot rotate due to the one-way transmission characteristics of the worm gear. The synchronous rod 2011 of the positioning worm wheel 201 can limit the rotation of the control wheel 203 through the synchronous groove 2032, so that the control wheel 203 is lifted up under the action of the damping top spring 2033, and the teeth of the damping gear 2031 of the control wheel 203 and the adjusting gear 202 are engaged with each other, thereby limiting the rotation of the adjusting gear 202. The adjusting gear 2021 of the adjusting gear 202 is engaged with the teeth of the adjusting tooth ring 1021, so that when the rotation force of the adjusting seat 103 is less than the engagement force obtained by the damping gear 2031 through the damping top spring 2033, the adjusting seat 103 cannot rotate. When the rotation force of the adjusting seat 103 is greater than the engagement force obtained by the damping gear 2031 through the damping top spring 2033, the two bevel edges of the damping gear 2031 are pressed against each other, thereby realizing the rotation function of the adjusting seat 103. Therefore, when a large-angle and rapid positioning of the use angle of the adjusting seat 103 is required, the adjusting seat 103 can be rotated manually to realize the damping rotation and positioning of the adjusting seat 103. When the observation angle of the observation device needs to be adjusted, the adjusting assembly 3 can realize the fine adjustment of the use angle of the adjusting seat 103. In the reset state, the operating gear 3061 is in a state of being separated from the driving tooth groove 3021 under the action of the top spring 3062, so that the operating lever 306 cannot realize the fine adjustment function at this time, thereby avoiding the phenomenon that the use angle of the adjusting seat 103 is changed due to the misoperation of the adjusting, and the use is stable. When the use angle of the adjusting seat 103 needs to be adjusted, the operating lever 306 is pressed and rotated. After the operating lever 306 is pressed, the operating gear 3061 is inserted into the inside of the driving tooth groove 3021, so that the operating lever 306 can drive the driving rod 302 to rotate synchronously when the operating lever 306 is rotated at this time. The driving rod 302 can drive the driving wheel 303 to rotate through the driving groove 3031 when the driving rod 302 is rotated. The adjusting worm 301 can be driven to rotate through the speed change wheel 3011 when the driving wheel 303 is rotated. The control wheel 203 can be driven to rotate through the synchronous rod 2011 of the positioning worm wheel 201 when the adjusting worm 301 is rotated. The adjusting gear 202 is synchronously rotated through the engagement transmission of the control wheel 203 and the damping gear 2031 of the adjusting gear 202. The adjusting seat 103 can be slowly rotated through the adjusting tooth ring 1021 when the adjusting gear 2021 of the adjusting gear 202 is rotated, thereby realizing the function of fine adjusting the use angle of the adjusting seat 103. The fine adjustment accuracy of the device can be freely changed in use by rotating the positioning lever 305 (that is, the angle of the adjusting seat 103 driven by the operating lever 306 in a unit rotation is changed).When the positioning rod 305 rotates, the positioning fork 304 can be driven to move through the rod body thread, and the driving wheel 303 can change the use position by following the movement of the positioning fork 304, that is, the friction contact position of the driving wheel 303 and the trapezoidal cross-section variable speed wheel 3011 is changed, that is, the transmission ratio between the driving wheel 303 and the variable speed wheel 3011 is changed, so that the function of changing the angle of the adjusting seat 103 that can be driven to rotate in a unit rotation circle of the operating rod 306 is realized, and different precision observation can be adapted to the use adjustment.

[0046] Finally, it should be noted that when describing the positions of various components and the cooperation relationship therebetween, etc., one pair of components is usually taken as an example, but those skilled in the art should understand that such positions and cooperation relationship are also applicable to other components or other pairs of components.

[0047] The above merely describes exemplary embodiments of the present application, but is not intended to limit the protection scope of the present application, which is defined by the appended claims.

Claims

1. An observation device capable of adjusting precision, characterized by, The utility model relates to a kind of leveling device, including: The seat body assembly (1) includes leveling seat (101), positioning seat (102) and adjusting seat (103), the top of leveling seat (101) is fixedly installed at the bottom of positioning seat (102), and the bottom of positioning seat (102) is fixedly connected with support frame, adjusting seat (103) is rotatably connected inside positioning seat (102), and the top of adjusting seat (103) is fixedly installed with observation device;Limiting component (2) includes positioning worm gear (201), adjusting wheel (202) and control wheel (203), positioning worm gear (201) is rotatably connected inside adjusting seat (103), and adjusting wheel (202) is rotatably connected inside positioning seat (102), control wheel (203) is rotatably connected inside adjusting seat (103), and positioning worm gear (201), adjusting wheel (202) and control wheel (203) are sequentially installed from top to bottom inside adjusting seat (103);Adjusting component (3) includes adjusting worm (301), drive rod (302), drive wheel (303), positioning fork (304), positioning rod (305) and operating rod (306), adjusting worm (301) is rotatably connected inside adjusting seat (103), and drive rod (302) is rotatably connected inside adjusting seat (303), drive wheel (303) is rotatably connected inside positioning fork (304), and positioning fork (304) is inserted inside adjusting seat (103), positioning rod (305) is rotatably connected inside adjusting seat (103), and operating rod (306) is inserted inside adjusting seat (103); The outside of adjusting wheel (202) is provided with adjusting gear (2021), and the inside of positioning seat (102) is provided with adjusting tooth ring (1021), the teeth of adjusting gear (2021) and adjusting tooth ring (1021) are engaged transmission; The top of control wheel (203) and the bottom of adjusting wheel (202) are each provided with damping gear (2031), and the teeth of damping gear (2031) of control wheel (203) and adjusting wheel (202) are mutually engaged; The bottom of positioning worm gear (201) is provided with synchronous rod (2011) with cross section as regular polygon, and the inside of control wheel (203) is provided with synchronous groove (2032), the rod body of synchronous rod (2011) passes through adjusting wheel (202), and the rod body of synchronous rod (2011) is inserted inside synchronous groove (2032); The bottom of control wheel (203) is provided with damping top spring (2033), and the both ends of damping top spring (2033) are respectively abutted on the bottom of control wheel (203) and the inside of adjusting seat (103). The rod body side of the adjusting worm (301) is provided with a coaxial gear wheel (3011), the cross section shape of the gear wheel (3011) is trapezoidal, the wheel body of the driving wheel (303) is tightly against the wheel body side of the gear wheel (3011), and the driving wheel (303) and the gear wheel (3011) are driven through friction; The rod body outside of the positioning rod (305) is provided with a screw thread, and the positioning rod (305) is screwed in the inside of the positioning yoke (304) through the rod body screw thread.

2. The observation device capable of adjusting precision according to claim 1, wherein: The inside of the driving wheel (303) is provided with a driving groove (3031), and the rod body cross section of the driving rod (302) is a regular polygon, the driving rod (302) is inserted in the inside of the driving groove (3031).

3. The device of claim 1, wherein the device is capable of adjusting the accuracy of the observation. The rod body inner end of the operating rod (306) is provided with an operating gear (3061), the rod body inside of the driving rod (302) is provided with a driving tooth groove (3021), the inside of the operating gear (3061) is provided with a disengaging top spring (3062), the two ends of the disengaging top spring (3062) are respectively 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 tooth groove (3021) in the reset state.

Images