CN214623183U

CN214623183U - Multi-mounting differential precision adjustment sighting telescope

Info

Publication number: CN214623183U
Application number: CN202120582020.XU
Authority: CN
Inventors: 欧建鑫; 周望喜
Original assignee: Wuhan Zhizhou Photoelectric Technology Co ltd
Current assignee: Wuhan Zhizhou Photoelectric Technology Co ltd
Priority date: 2021-03-22
Filing date: 2021-03-22
Publication date: 2021-11-05
Anticipated expiration: 2031-03-22

Abstract

The utility model relates to a many carry differential fine adjustment gun sight, relate to aiming optical instrument technical field, it includes objective group, correction lens group, eyepiece group and red point mirror, correction lens group periphery cover is equipped with the protection casing, correction lens group is adjustable to be set up in the protection casing, the intercommunication is provided with the screw thread seat on the protection casing, screw thread seat internal thread is connected with the coarse adjusting screw rod, coarse adjusting screw rod internal thread is connected with the fine adjustment screw rod, be provided with the locating part that is used for restricting fine adjustment screw rod and coarse adjusting screw rod constant speed to feed on the screw thread seat, be fixed with the butt piece with correction lens group butt on the fine adjustment screw rod. This application carries out the coarse adjustment to correction mirror tube group position through rotating the coarse adjustment screw, and fine adjustment screw rod mends the poor to the feed motion of coarse adjustment screw rod under the screw drive with the coarse adjustment screw rod and the limiting displacement of locating part simultaneously, realizes carrying out the fine tuning to correction mirror tube group position, improves the coincidence degree of the optical axis of correction mirror tube group and target impact point, and then improves the accuracy of the shooting of aiming at of gun sight.

Description

Multi-mounting differential precision adjustment sighting telescope

Technical Field

The application relates to the technical field of aiming optical instruments, in particular to a multi-mounting differential type precision adjusting sighting telescope.

Background

An optical sighting telescope has at least three optical lens groups, namely an objective lens group, a correcting lens group and an eyepiece lens group, and other lens groups are possible. The objective lens group is responsible for collecting light, when the objective lens group is bigger, the scenery in the sighting telescope is brighter, and the eyepiece lens group is responsible for changing the light rays into parallel light rays so that the eyes can focus, and the maximum visual field is created; the correcting lens group corrects the image of the objective lens from upside down and left and right opposite to correct the image to the correct direction and is responsible for adjusting the multiplying power. The position of the aiming line can be in a first focusing plane in front of the correction lens group or in a second focusing plane behind the correction lens group, the windage yaw adjusting button, the height adjusting button and the magnification ring are all used for controlling the left, right, high, front and back positions of the correction lens group, so that the aiming line is parallel to the optical axis of the correction lens group, and the adjustment of the trajectory and windage yaw of the aiming lens is realized, the multi-mounting differential type fine adjustment aiming lens is that aiming optical instruments such as a red dot lens, a flashlight, a laser and the like are mounted on the periphery of the aiming lens, because a light point (light ray) emitted into eyes in the red dot lens is always balanced with the red dot lens, even if the eyes are not on the central axis of the red dot lens, the red dot lens can be used for accurate aiming, the shooting accuracy during high-speed movement or body shaking can be improved, so that the aiming lens is observed and moved through the red dot lens when the aiming optical instrument mounted with the red dot lens is used, the red dot position is coincided with a target impact point, and then the coincidence degree of the optical axis of the correction lens group and the target impact point is adjusted, and accurate shooting can be completed.

In view of the above-mentioned related technologies, the inventor thinks that the optical sighting telescope needs to adjust the position of the correction lens group according to the distance of the shooting target, the self weight of the bullet and the wind direction of the shooting environment during the shooting use process, so that the optical axis of the correction lens group coincides with the target impact point.

SUMMERY OF THE UTILITY MODEL

In order to improve the problem of accomplishing the position adjustment of correction lens group fast accurately, this application provides a many carries differential type fine adjustment gun sight.

The application provides a many carry differential type fine adjustment gun sight adopts following technical scheme:

the utility model provides a many carry differential type fine adjustment gun sight, includes objective group, correction lens group, eyepiece group and red some mirror, correction lens group periphery cover is equipped with the protection casing, correction lens group is adjustable to be set up in the protection casing, the intercommunication is provided with the screw thread seat on the protection casing, screw thread seat internal thread is connected with coarse adjusting screw, coarse adjusting screw internal thread is connected with fine adjustment screw, coarse adjusting screw external thread pitch is greater than coarse adjusting screw internal thread pitch, be provided with on the screw thread seat and be used for the restriction fine adjusting screw with the locating part that coarse adjusting screw constant speed fed, be fixed with on the fine adjusting screw with the butt piece of correction lens group butt.

By adopting the technical scheme, when the position of the correcting lens group is adjusted, the coarse adjustment screw rod is firstly rotated, the fine adjustment screw rod is pushed by the coarse adjustment screw rod under the drive of the threads of the threaded seat to move towards the correcting lens group, the abutting part on the fine adjustment screw rod pushes the correcting lens group to perform coarse adjustment on the position in the protective cover, the fine adjustment screw rod cannot rotate along with the coarse adjustment screw rod under the limiting action of the limiting part because the thread pitch of the external thread of the coarse adjustment screw rod is greater than that of the internal thread of the coarse adjustment screw rod, the fine adjustment screw rod generates relative feed motion with the coarse adjustment screw rod under the drive of the threads of the coarse adjustment screw rod, the relative feed motion between the fine adjustment screw rod and the coarse adjustment screw rod can compensate the feed motion of the coarse adjustment screw rod, so that the abutting part on the fine adjustment screw rod pushes the correcting lens group to perform fine adjustment on the position in the protective cover, and the multi-mounted differential fine adjustment sighting telescope sight designed by the structure rotates the coarse adjustment screw rod, the coarse adjustment screw rod drives the abutting part to perform coarse adjustment on the position of the correction lens group under the drive of the threads of the threaded seat, and the fine adjustment screw rod performs error compensation on the feeding motion of the coarse adjustment screw rod under the drive of the threads of the coarse adjustment screw rod and the limiting action of the limiting part, so that the position of the correction lens group is finely adjusted, the overlap ratio of the optical axis of the correction lens group and a target impact point is improved, and the aiming shooting accuracy of the sighting telescope is further improved.

Optionally, the limiting part is arranged as an inner square cylinder, the inner square cylinder is fixedly connected with the threaded seat, the fine adjustment screw rod penetrates through the inner square cylinder, and a square column matched with the inner square cylinder in a sliding manner is fixed on the periphery of the fine adjustment screw rod.

By adopting the technical scheme, when the coarse adjustment screw rod is rotated, the fine adjustment screw rod cannot rotate along with the coarse adjustment screw rod under the mutual limiting action of the inner square cylinder and the square column, so that the coarse adjustment screw rod drives the fine adjustment screw rod to move towards the direction close to the correction lens tube group, and simultaneously the fine adjustment screw rod and the coarse adjustment screw rod generate relative feeding motion under the spiral action of the coarse adjustment screw rod, the difference compensation of the feeding motion of the coarse adjustment screw rod is realized, the position of the correction lens tube group is further quickly and accurately adjusted, the overlap ratio of the optical axis of the correction lens tube group and a target impact point is improved, and the aiming shooting accuracy of the sighting telescope is improved.

Optionally, the butt piece sets up to the butt pole, the butt pole is located outside the interior square section of thick bamboo, the one end of butt pole with the fine tuning screw rod coaxial fastening, the other end of butt pole with proofreading mirror tube group butt, be provided with on the screw thread seat be used for with the inseparable butt of butt pole is in joint subassembly on the proofreading mirror tube group.

Through adopting above-mentioned technical scheme, when coarse adjusting screw rod and fine tuning screw rod moved towards being close to correction mirror tube group direction under the effect of screw thread, the fine tuning screw rod drove the inseparable butt of butt pole on the periphery wall of correction mirror tube group to the realization is to the stable accurate regulation of correction mirror tube group position.

Optionally, the joint subassembly includes ring gear and joint ball, the ring gear is fixed on the screw thread seat inner wall, the spread groove has been seted up on the coarse adjusting screw rod, the one end of spread groove sets up for the opening, the other end of spread groove sets up for closed, the opening orientation of spread groove the ring gear direction, fixedly connected with spring in the spread groove, the joint ball is fixed on the spring, just the joint ball with ring gear elastic clamping, screw thread seat periphery cover is equipped with and is convenient for rotate the rotation piece of coarse adjusting screw rod.

Through adopting above-mentioned technical scheme, when rotating the coarse tuning screw rod, the coarse tuning screw rod carries out the direction motion that the orientation is close to or keeps away from the inspection mirror nest of tubes under the screw thread drive of screw thread seat, after the position adjustment of inspection mirror nest of tubes in the protection casing is accomplished, the joint ball closely the joint with the ring gear under the effect of spring, coarse tuning screw rod can be stably locked on the screw thread seat this moment, the spread groove can protect the spring, avoid the spring to produce and buckle, and then influence the stability of joint between joint ball and the ring gear, the joint effect of joint ball and ring gear, be convenient for realize fixing a position of inspection mirror nest of tubes fast accurately, improve the coincidence degree of the optical axis of inspection mirror nest of tubes and target impact point, and then improve the accurate nature of the shooting of aiming at sight.

Optionally, the rotating part is a hand wheel, the hand wheel rotates to cover the periphery of the threaded seat, a locking screw used for connecting the rough adjusting screw rod is fixed on the hand wheel, and a dustproof piece is arranged on the threaded seat.

By adopting the technical scheme, the hand wheel is rotated, the hand wheel drives the coarse adjustment screw rod to synchronously rotate through the locking screw, the rotary coarse adjustment screw rod synchronously drives the fine adjustment screw rod to accurately adjust the position of the correction lens group, and the hand wheel can increase the friction force between the palm and the coarse adjustment screw rod, so that the adjustment of the position of the correction lens group can be quickly and accurately completed.

Optionally, a plurality of scale marks convenient for reading are uniformly distributed on the outer peripheral wall of the hand wheel.

By adopting the technical scheme, the arrangement of the scale marks is convenient for intuitively monitoring the position of the hand wheel, and when the change of the position of the hand wheel is observed, the position of the correction lens group can be timely and quickly adjusted, so that the adjusting time of the correction lens group is shortened.

Optionally, the dustproof piece sets up to the rubber circle, the ring channel has been seted up on the screw thread seat periphery wall, the rubber circle cover is established and is fixed in the ring channel, just the rubber circle with the sealed butt of hand wheel inner wall.

Through adopting above-mentioned technical scheme, the ring channel is used for fixing the rubber circle on the screw thread seat, has the clearance between hand wheel and the screw thread seat, and the rubber circle can be clogged the clearance, avoids the dust to enter into in the clearance influence the hand wheel to the accurate regulation of correction mirror tube group position.

Optionally, one side that the fine adjustment screw was kept away from to the correction lens group is provided with the leaf spring, the leaf spring is fixed in the protection casing, leaf spring elasticity butt is in on the periphery wall of correction lens group.

Through adopting above-mentioned technical scheme, the correction lens nest of tubes deflects towards the leaf spring direction under the butt effect of butt pole, and then extrudees the leaf spring and makes it produce deformation, and the leaf spring reaction after the deformation is at the correction lens nest of tubes, and the correction lens nest of tubes can be stably locked in the protection casing under the interact of leaf spring and butt pole for the optical axis of correction lens nest of tubes and target point of bullet are stable coincide, and then improve the accurate nature of the shooting of aiming at of gun sight.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the coarse adjustment screw rod drives the abutting rod to perform coarse adjustment on the position of the correction lens group under the drive of the threads of the threaded seat by rotating the coarse adjustment screw rod, and the fine adjustment screw rod performs tolerance compensation on the feed motion of the coarse adjustment screw rod under the drive of the threads of the coarse adjustment screw rod and the mutual limiting action of the inner square barrel and the square column, so that the position of the correction lens group is finely adjusted, the overlap ratio of the optical axis of the correction lens group and a target impact point is improved, and the aiming shooting accuracy of the sighting telescope is improved;

2. the joint ball closely joints with the ring gear under the effect of spring, and the coarse adjusting screw rod can be stably locked on the screw thread seat this moment, and the joint effect of joint ball and ring gear is convenient for realize fixing a position of proofreading and correct lens nest of tubes fast accurately, improves the overlap ratio of proofreading and correct lens nest of tubes's optical axis and target impact point, and then improves the accurate nature of aiming shooting of gun sight.

Drawings

FIG. 1 is a schematic structural diagram of the whole in the embodiment of the present application;

FIG. 2 is a schematic structural diagram of an objective lens assembly, a calibration lens assembly, an eyepiece lens assembly, a threaded base, an inner square cylinder, a square column, a butt rod, a hand wheel, a scale mark and a leaf spring according to an embodiment of the present application;

FIG. 3 is an exploded view of a threaded seat, a coarse adjustment screw, a fine adjustment screw, an inner square barrel, a square post, a butt rod, a snap assembly, a spring, a hand wheel, a locking screw, and a rubber ring in an embodiment of the present application;

fig. 4 is a schematic structural diagram of a thread seat, an inner square cylinder, a gear ring, a stepped circular truncated cone and a fixing groove in the embodiment of the application.

Reference numerals: 1. an objective lens group; 2. a correction lens group; 3. an eyepiece group; 4. a red dot mirror; 5. a protective cover; 6. a threaded seat; 7. roughly adjusting the screw rod; 8. finely adjusting the screw; 9. an inner square cylinder; 10. a square column; 11. a butting rod; 12. a clamping assembly; 121. a toothed ring; 122. clamping the ball; 13. connecting grooves; 14. a spring; 15. a hand wheel; 16. locking the screw; 17. scale lines; 18. a rubber ring; 19. an annular groove; 20. a leaf spring; 21. a fixing ring; 22. a stepped circular truncated cone; 23. an internally threaded bore; 24. fixing grooves; 25. and (4) a boss.

Detailed Description

The present application is described in further detail below with reference to figures 1-4.

The embodiment of the application discloses many carry differential type fine adjustment gun sight. Referring to fig. 1 and 2, the multi-mount differential fine adjustment sighting telescope includes an objective lens group 1, a correcting lens group 2, an eyepiece lens group 3, a red dot mirror 4, and a protective cover 5.

The protective cover 5 is horizontally placed, two ends of the protective cover 5 are both provided with openings, the ocular group 3 and the objective group 1 are respectively fixedly connected with two ends of the protective cover 5 through screws, the red dot lens 4 is fixedly connected on the upper end surface of the protective cover 5 through screws, the correcting lens group 2 is adjustably arranged in the protective cover 5, the diameter size of one end of the correcting lens group 2 close to the ocular group 3 is smaller than that of the ocular group 3, a fixing ring 21 is spherically hinged at one end of the correcting lens group 2 close to the ocular group 3, the fixing ring 21 is fixedly connected on the inner wall of the protective cover 5 through screws, the ocular group 3 is positioned at one side of the fixing ring 21 far away from the correcting lens group 2, the ocular group 3 and the fixing ring 21 are coaxially arranged, the fixing ring 21 is fixedly sleeved on the peripheral wall of the ocular group 3 through screws, the diameter size of one end of the correcting lens group 2 far away from the ocular group 3 is smaller than that of the objective group 1, the inner wall of the protective cover 5 near one end of the objective lens group 1 is welded and fixed with a leaf spring 20, the leaf spring 20 protrudes towards the direction of the correction lens group 2, and the leaf spring 20 is elastically abutted against the outer peripheral wall of the correction lens group 2.

Referring to fig. 2 and 3, a threaded seat 6 is communicated with and arranged on the protective cover 5, the threaded seat 6 is positioned on one side of the correcting lens group 2 far away from the leaf spring 20, the threaded seat 6 is welded and fixed on the lower end surface of the protective cover 5, the threaded seat 6 is arranged in a cylindrical shape, the axis of the central shaft of the threaded seat 6 is vertically arranged, threads are arranged on the inner wall of the threaded seat 6 (refer to fig. 4), a rough adjusting screw 7 is connected with the threaded seat 6 in a threaded manner, the length dimension of the threaded part of the rough adjusting screw 7 along the vertical direction is larger than the length dimension of the threaded seat 6 along the vertical direction, one end of the rough adjusting screw 7 far away from the correcting lens group 2 is positioned on the outer side of the threaded seat 6, a stepped circular truncated cone 22 is coaxially welded and fixed on the rough adjusting screw 7 positioned on the outer side of the threaded seat 6, the diameter dimension of one end of the stepped circular truncated cone 22 far away from the rough adjusting screw 7 is larger than the diameter dimension of one end of the stepped circular truncated cone 22 close to the rough adjusting screw 7, the periphery of the threaded seat 6 is covered with a rotating part which is convenient for rotating the rough adjusting screw 7.

The rotation piece sets up to hand wheel 15, the internal diameter size of hand wheel 15 is greater than the external diameter size of screw seat 6, the equipartition has a plurality of scale marks 17 of the reading of being convenient for on the 15 periphery wall of hand wheel, scale mark 17 is located the one end that hand wheel 15 is close to the screw thread section of thick bamboo, when observing that hand wheel 15 position changes, can in time carry out position control to correction mirror tube group 2 fast, shorten the adjust time of correction mirror tube group 2, the symmetry is provided with multiunit locking screw 16 on the periphery wall of hand wheel 15 keeping away from scale mark 17 one end, locking screw 16's screw thread portion screw thread wears to establish the periphery wall joint of hand wheel 15 on ladder round platform 22, hand wheel 15 is fixed on rough adjusting screw 7 with the locking of coaxial locking under locking screw 16's the connection effect, be provided with on the screw seat 6 and be used for dirt-proof dust keeper.

Referring to fig. 2 and 3, the dust-proof piece is set to be rubber ring 18, annular groove 19 has been seted up along 6 circumferential direction of screw seat on the periphery wall of screw seat 6 one end that is located hand wheel 15, annular groove 19 sets up with screw seat 6 is coaxial, 18 covers of rubber ring are established and are fixed in annular groove 19, the internal diameter size of rubber ring 18 is less than the internal diameter size of annular groove 19, the external diameter size of rubber ring 18 is greater than the internal diameter size of hand wheel 15, rubber ring 18 can be stuffed the clearance between hand wheel 15 and screw seat 6, avoid the dust to enter into in the clearance.

An internal thread hole 23 is formed in one end, far away from the hand wheel 15, of the rough adjustment screw 7, the internal thread hole 23 and the rough adjustment screw 7 are arranged coaxially, the thread turning direction on the inner wall of the internal thread hole 23 is the same as the thread turning direction on the inner wall of the thread seat 6, the thread pitch of the thread on the inner wall of the internal thread hole 23 is smaller than that of the thread on the inner wall of the thread seat 6, one end, close to the correction lens group 2, of the internal thread hole 23 is arranged in an opening mode, one end, close to the hand wheel 15, of the internal thread hole 23 is arranged in a closed mode, a fine adjustment screw 8 is connected with the internal thread hole 23 in an internal thread mode, the length size of the thread portion of the fine adjustment screw 8 in the vertical direction is larger than that of the length size of the internal thread hole 23 in the vertical direction, and a limiting part for limiting the fine adjustment screw 8 and the rough adjustment screw 7 to feed at the same speed is arranged on the thread seat 6.

Referring to fig. 2 and 3, the locating part sets up to interior square section of thick bamboo 9, the both ends of interior square section of thick bamboo 9 are the opening setting, the axle center axis of interior square section of thick bamboo 9 sets up with the central axis collineation of screw thread seat 6, the one end that hand wheel 15 was kept away from to interior square section of thick bamboo 9 welded fastening at screw thread seat 6, the one end that coarse adjusting screw 7 was kept away from to fine tuning screw 8 stretches out interior square section of thick bamboo 9 and sets up, welded fastening has the square post 10 with the adaptation of sliding of interior square section of thick bamboo 9 on the fine tuning screw 8 periphery wall that is located interior square section of thick bamboo 9, the central axis of square post 10 sets up with the central axis collineation of fine tuning screw 8, be fixed with the butt piece with correction mirror tube group 2 butt on the fine tuning screw 8.

The butt piece sets up to connect the pole 11, and butt pole 11 is located the interior square section of thick bamboo 9 outsides, and butt pole 11 coaxial welded fastening is served at the one end that the fine tuning screw rod 8 is close to correction lens group 2, and the tight butt of one end and the 2 periphery walls of correction lens group that fine tuning screw rod 8 was kept away from to butt pole 11 is provided with on the screw thread seat 6 and is used for the joint subassembly 12 of the inseparable butt of butt pole 11 on correction lens group 2.

Referring to fig. 3 and 4, the latch assembly 12 includes a ring gear 121 and a latching ball 122, a fixed groove 24 is formed on an inner wall of one end of the screw seat 6 away from the inner square cylinder 9, a diameter of a cross-sectional circle of the fixed groove 24 is greater than an inner diameter of a screw thread portion of the screw seat 6, an outer circumferential wall of the ring gear 121 is welded and fixed to the inner wall of the fixed groove 24, teeth of the ring gear 121 face a direction away from the inner wall of the fixed groove 24, a diameter of a circle of teeth of the ring gear 121 is greater than a diameter of the rough adjusting screw 7, a boss 25 is coaxially welded and fixed to the outer circumferential wall of the fixed groove 24 of the rough adjusting screw 7, the boss 25 is formed in a cylindrical shape, the diameter of the boss 25 is smaller than the diameter of the circle of teeth of the ring gear 121, a connecting groove 13 is formed on the boss 25 in a radial direction thereof, one end of the connecting groove 13 is opened, the other end of the connecting groove 13 is closed, the connecting groove 13 extends to the rough adjusting screw 7, and the opening of connecting groove 13 is towards ring gear 121 direction, fixedly connected with spring 14 in the connecting groove 13, the inner wall welded fastening of the one end of spring 14 and connecting groove 13 closed end, the other end of spring 14 and joint ball 122 welded fastening, the diameter size of joint ball 122 is less than the groove width size of connecting groove 13, joint ball 122 is located the connecting groove 13 outside, spring 14 is in compression state all the time, joint ball 122 carries out the joint with ring gear 121 under spring 14's effect and supports tightly.

The implementation principle of the multi-mounting differential type precision adjustment sighting telescope in the embodiment of the application is as follows: when the position of the correcting lens group 2 is adjusted, the hand wheel 15 drives the rough adjusting screw 7 to rotate, the rough adjusting screw 7 drives the fine adjusting screw 8 and the abutting rod 11 to move towards the correcting lens group 2 under the drive of the screw thread seat 6, the fine adjusting screw 8 cannot rotate along with the rough adjusting screw 7 under the mutual restriction action of the inner square cylinder 9 and the square column 10, so the rough adjusting screw 7 drives the fine adjusting screw 8 to move towards the direction close to the correcting lens group 2, the fine adjusting screw 8 generates relative feeding motion with the rough adjusting screw 7 under the spiral action of the rough adjusting screw 7, the relative feeding motion generated between the fine adjusting screw 8 and the rough adjusting screw 7 can compensate the feeding motion of the rough adjusting screw 7 because the thread pitch of the rough adjusting screw 7 is larger than the thread pitch of the rough adjusting screw 7, and the position of the correcting lens group 2 can be adjusted rapidly and accurately through the abutting rod 11, the calibration lens group 2 deflects towards the leaf spring 20 under the abutting action of the abutting rod 11, and then the leaf spring 20 is pressed to deform, the deformed leaf spring 20 acts against the calibration lens group 2, and the calibration lens group 2 can be stably locked in the protective cover 5 under the interaction of the leaf spring 20 and the abutting rod 11.

After accomplishing the position adjustment of corrector lens group 2 in protection casing 5, joint ball 122 closely the joint with ring gear 121 under spring 14's effect, coarse adjusting screw 7 can stably lock on screw seat 6 this moment, spread groove 13 can protect spring 14, avoid spring 14 to produce and buckle, and then influence the stability of joint between joint ball 122 and the ring gear 121, joint ball 122 and ring gear 121's joint effect, be convenient for realize fixing a position of corrector lens group 2 fast accurately, improve the overlap ratio of the optical axis of corrector lens group 2 and the target impact point, and then improve the accuracy of the shooting of aiming at of gun sight.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a many carry differential fine adjustment gun sight, includes objective group (1), correction lens group (2), eyepiece group (3) and red some mirror (4), correction lens group (2) periphery cover is equipped with protection casing (5), correction lens group (2) adjustable setting is in protection casing (5), its characterized in that: the protective cover is characterized in that a threaded seat (6) is communicated with the protective cover (5), a coarse adjusting screw rod (7) is connected to the threaded seat (6) in an internal thread mode, a fine adjusting screw rod (8) is connected to the coarse adjusting screw rod (7) in an internal thread mode, the external thread pitch of the coarse adjusting screw rod (7) is larger than the internal thread pitch of the coarse adjusting screw rod (7), a limiting part used for limiting the fine adjusting screw rod (8) and the coarse adjusting screw rod (7) to feed at the same speed is arranged on the threaded seat (6), and a butt-joint part abutted against the correcting mirror tube group (2) is fixed to the fine adjusting screw rod (8).

2. The multi-mount differential fine adjustment scope according to claim 1, characterized in that: the locating part sets up to interior square section of thick bamboo (9), interior square section of thick bamboo (9) with screw thread seat (6) fixed connection, fine tuning screw rod (8) wear to establish interior square section of thick bamboo (9) set up, fine tuning screw rod (8) periphery be fixed with square post (10) of interior square section of thick bamboo (9) adaptation that slides.

3. The multi-mount differential fine adjustment scope according to claim 2, characterized in that: the butt piece sets up to butt pole (11), butt pole (11) are located outside interior square section of thick bamboo (9), the one end of butt pole (11) with accurate adjusting screw rod (8) coaxial fastening, the other end of butt pole (11) with correction lens group (2) butt, be provided with on screw thread seat (6) be used for with butt pole (11) inseparable butt is in joint subassembly (12) on the correction lens group (2).

4. The multi-mount differential fine adjustment scope according to claim 3, characterized in that: joint subassembly (12) are including ring gear (121) and joint ball (122), ring gear (121) are fixed on screw thread seat (6) inner wall, spread groove (13) have been seted up on coarse adjusting screw (7), the one end of spread groove (13) sets up for the opening, the other end of spread groove (13) sets up for closed, the opening orientation of spread groove (13) ring gear (121) direction, fixedly connected with spring (14) in spread groove (13), joint ball (122) are fixed on spring (14), just joint ball (122) with ring gear (121) elasticity joint, screw thread seat (6) periphery cover is equipped with the rotation of being convenient for coarse adjusting screw (7) the rotation piece.

5. The multi-mount differential fine adjustment scope according to claim 4, characterized in that: the rotating part is arranged as a hand wheel (15), the hand wheel (15) rotates to cover the periphery of the threaded seat (6), a locking screw (16) used for connecting the rough adjusting screw rod (7) is fixed on the hand wheel (15), and a dustproof piece is arranged on the threaded seat (6).

6. The multi-mount differential fine adjustment scope according to claim 5, wherein: the hand wheel (15) periphery wall is gone up the equipartition and is equipped with a plurality of scale marks (17) of being convenient for the reading.

7. The multi-mount differential fine adjustment scope according to claim 5, wherein: the dustproof piece sets up to rubber circle (18), ring channel (19) have been seted up on screw thread seat (6) periphery wall, rubber circle (18) cover is established and is fixed in ring channel (19), just rubber circle (18) with hand wheel (15) inner wall sealing butt.

8. The multi-mount differential fine adjustment scope according to claim 2, characterized in that: one side of the correcting lens group (2) far away from the fine adjustment screw (8) is provided with a leaf spring (20), the leaf spring (20) is fixed in the protective cover (5), and the leaf spring (20) is elastically abutted to the peripheral wall of the correcting lens group (2).