CN219178384U

CN219178384U - Fine adjustment mechanism applied to sighting telescope

Info

Publication number: CN219178384U
Application number: CN202223188397.0U
Authority: CN
Inventors: 罗朝良; 吴春梅; 蒲师松
Original assignee: Zhuhai 963 Seiko Technology Co ltd
Current assignee: Zhuhai 963 Seiko Technology Co ltd
Priority date: 2022-11-30
Filing date: 2022-11-30
Publication date: 2023-06-13
Anticipated expiration: 2032-11-30

Abstract

The utility model aims to provide the fine adjustment mechanism which has simple structure, good waterproof and dustproof performances, does not cause deflection of the hand wheel after vibration and has higher reliability and is applied to the sighting telescope. The utility model comprises an adjusting seat, an adjusting screw and a locking assembly, wherein the adjusting screw is in threaded connection with the adjusting seat, the locking assembly comprises a lock sleeve, a first toothed ring and a second toothed ring, the lock sleeve is in sliding fit on the adjusting seat, the lock sleeve is connected with the first toothed ring, the first toothed ring is in limit fit with the adjusting screw, the second toothed ring is connected with the adjusting seat, and the first toothed ring is meshed with the second toothed ring. The utility model is applied to the technical field of sighting telescope.

Description

Fine adjustment mechanism applied to sighting telescope

Technical Field

The utility model is applied to the technical field of sighting telescope, and particularly relates to a fine adjustment mechanism applied to a sighting telescope.

Background

In order to improve shooting precision, a gun is provided with a sighting telescope as an auxiliary sighting tool, and the sighting telescope is generally provided with a hand wheel, and parameters such as focal length, magnification and the like of the sighting telescope are adjusted by rotating the hand wheel, so that the gun is suitable for sighting at various distances. However, the existing hand wheel adjusting mechanism has no locking function, and after the hand wheel is rotated to finish calibration, if the firearm is carelessly vibrated or rocked under the influence of external factors, the hand wheel sliding teeth can be caused to automatically deflect, so that the sighting telescope loses the reference. In addition, the existing hand wheel adjusting mechanism has poor waterproof and dustproof performances, and dust and sand grains easily invade the hand wheel adjusting mechanism to cause the mechanism to be blocked when the hand wheel adjusting mechanism is used in a desert environment or a sand storm environment; after the device is used in rainy fog or humid weather, when the device is used in a low-temperature environment, the inside of the mechanism is easy to cause icing, so that the hand wheel is blocked.

The prior art proposes an adjusting hand wheel structure of a sighting telescope with a publication number of CN216049442U, wherein the adjusting hand wheel structure is tightly attached to the inner wall of a hand wheel cover through the outer wall of a convex part, a hand wheel gasket is partially contained in a fixing groove, the bottom wall of the convex part is tightly attached to the upper surface of the fixing part through the hand wheel gasket, and dust or water is effectively prevented from entering the interior from between a hand wheel seat and the fixing part or between the hand wheel seat and the hand wheel cover. However, when the hand wheel cover is rotated to finish adjustment, the hand wheel cover or the adjusting seat is locked without a locking mechanism, and when a relatively severe environment is met, the hand wheel cover is deflected when the firearm is carelessly shaken or vibrated, the adjusting seat sliding teeth are caused to deviate, the reference of the sighting telescope is deviated, and the sighting telescope needs to be calibrated again, so that the sighting telescope is relatively troublesome. If a fine tuning mechanism applied to a sighting telescope, which has simple structure, good waterproof and dustproof performances, can not cause deflection of a hand wheel after vibration, and has higher reliability, the problems can be well solved.

Disclosure of Invention

The utility model aims to solve the technical problem of overcoming the defects of the prior art and providing the fine adjustment mechanism which has the advantages of simple structure, good waterproof and dustproof performances, high reliability and no deflection of the hand wheel after vibration.

The technical scheme adopted by the utility model is as follows: the utility model comprises an adjusting seat, an adjusting screw and a locking assembly, wherein the adjusting screw is in threaded connection with the adjusting seat, the locking assembly comprises a lock sleeve, a first toothed ring and a second toothed ring, the lock sleeve is in sliding fit on the adjusting seat, the lock sleeve is connected with the first toothed ring, the first toothed ring is in limit fit with the adjusting screw, the second toothed ring is connected with the adjusting seat, and the first toothed ring is meshed with the second toothed ring.

Further, the adjusting screw comprises a fixed head and a stud, the fixed head is connected with the stud, a threaded sleeve is arranged on the adjusting seat, the stud is in threaded fit with the threaded sleeve, a plurality of strip teeth are arranged on the outer side of the fixed head, the strip teeth are meshed with the inner ring of the first toothed ring, and the outer ring of the first toothed ring is meshed with the inner ring of the second toothed ring.

Further, the fixing head is connected with the stud through a rotating shaft, a mounting block is arranged on the rotating shaft, and a mounting hole is formed in the mounting block; the fine adjustment mechanism applied to the sighting telescope further comprises a clicking assembly, the clicking assembly comprises a top screw, a first spring, a positioning pin and a first steel ball, the top screw is in threaded fit with one end of the mounting hole, the positioning pin and the first spring are both matched in the mounting hole, the first spring is located between the positioning pin and the top screw, the first steel ball is arranged at the end part of the positioning pin, and the first steel ball is pressed against the inner ring of the second toothed ring.

Further, the fine adjustment mechanism applied to the sighting telescope further comprises a hand wheel assembly, the hand wheel assembly comprises a hand wheel, a locking screw, an elastic pad and a flat pad, a through hole is formed in the middle of the hand wheel, an annular boss is arranged on the inner wall of the through hole, the flat pad is arranged on the annular boss, the elastic pad is arranged on the flat pad, the locking screw sequentially penetrates through the elastic pad and is in threaded connection with the fixing head after the flat pad, and the elastic pad and the flat pad are pressed between a screw head of the locking screw and the annular boss.

Further, a third toothed ring is arranged on the bottom surface of the annular boss, and a plurality of strip teeth are meshed with the inner ring of the third toothed ring.

Further, the hand wheel assembly further comprises a first sealing ring, a first positioning groove is formed in the fixing head, the first sealing ring is matched in the first positioning groove, and the first sealing ring is pressed between the annular boss and the fixing head.

Further, the fine adjustment mechanism applied to the sighting telescope further comprises a positioning assembly, the positioning assembly comprises two second steel balls and two second springs, limiting holes are formed in two sides of the lock sleeve, the second steel balls and the second springs are matched in the limiting holes, a first annular groove and a second annular groove are formed in an inner ring of the hand wheel, the second annular groove is located below the first annular groove, the second steel balls are matched in the first annular groove or the second annular groove, and the second springs are used for propping the second steel balls against the hand wheel.

Further, the outside of lock sleeve is equipped with the second constant head tank, the outside of adjusting the seat is equipped with the third constant head tank, be equipped with the fourth constant head tank in the pivot, a fine setting mechanism who is applied to the gun sight still includes second sealing washer, third sealing washer and fourth sealing washer, the second sealing washer adaptation is in the second constant head tank, the third sealing washer adaptation is in the third constant head tank, the fourth sealing washer adaptation is in the fourth constant head tank, the second sealing washer is compressed tightly the hand wheel with between the lock sleeve, the third sealing washer is compressed tightly the lock sleeve with between the adjusting the seat, the fourth sealing washer is compressed tightly the swivel nut with between the pivot.

Further, a third steel ball is arranged at the bottom end of the stud.

The beneficial effects of the utility model are as follows: according to the utility model, the adjusting seat is arranged on the lens body of the sighting telescope, when the sighting telescope is required to be adjusted, the hand wheel is screwed to enable the adjusting screw to rotate, and as the adjusting screw is in threaded connection with the adjusting seat, the third steel ball arranged on the adjusting screw can realize linear movement, and the lens is enabled to move by pushing against the lens in the sighting telescope, so that parameters such as focal length, magnification and the like of the sighting telescope are adjusted. After finishing the regulation, push down the lock sleeve drives first ring gear down move the back with the second ring gear meshes mutually, because the hand wheel with adjusting screw fixed connection, first ring gear with adjusting screw spacing cooperation, and the second ring gear with adjusting seat fixed connection, consequently when twisting hard once more the hand wheel, adjusting screw also can not produce any rotation, thereby has realized the lock of hand wheel dies, even the firearms is after vibrations or rocking, its sighting telescope's benchmark also can be guaranteed, and the reliability is high. In addition, the sealing rings are additionally arranged between the hand wheel and the adjusting screw, between the hand wheel and the lock sleeve, between the lock sleeve and the adjusting seat and between the screw sleeve and the rotating shaft, so that the waterproof and dustproof effects are achieved, and the hand wheel is not blocked even if the waterproof and dustproof type waterproof and dustproof lock sleeve is used in a sand-blown environment or a low-temperature environment.

Drawings

FIG. 1 is a perspective view of the present utility model;

FIG. 2 is a cross-sectional view of the present utility model;

FIG. 3 is an exploded view of the present utility model;

FIG. 4 is an exploded view of the first toothed ring and the second toothed ring;

FIG. 5 is a perspective view of the handwheel;

FIG. 6 is a perspective view of the adjustment seat;

fig. 7 is a perspective view of the adjusting screw.

Detailed Description

As shown in fig. 1 to 7, in the present embodiment, the present utility model includes an adjusting seat 1, an adjusting screw, and a locking assembly, the adjusting screw is in threaded connection with the adjusting seat 1, the locking assembly includes a lock sleeve 2, a first toothed ring 3, and a second toothed ring 4, the lock sleeve 2 is slidingly engaged with the adjusting seat 1, the lock sleeve 2 is connected with the first toothed ring 3, the first toothed ring 3 is in limited engagement with the adjusting screw, the second toothed ring 4 is connected with the adjusting seat 1, and the first toothed ring 3 is engaged with the second toothed ring 4. The bottom of the adjusting seat 1 is provided with external threads, and the adjusting seat 1 is in threaded connection with a lens body of the sighting telescope; when the adjusting screw is screwed, the adjusting screw can move upwards or downwards; the first toothed ring 3 is engaged with the second toothed ring 4 only after the lock sleeve 2 is pushed down to move to a designated position.

In this embodiment, the adjusting screw includes a fixing head 5 and a stud 6, the fixing head 5 is connected with the stud 6, a threaded sleeve 7 is provided on the adjusting seat 1, the stud 6 is in threaded engagement with the threaded sleeve 7, a plurality of strip teeth 8 are provided on the outer side of the fixing head 5, the strip teeth 8 are engaged with the inner ring of the first toothed ring 3, and the outer ring of the first toothed ring 3 is engaged with the inner ring of the second toothed ring 4. Wherein, no matter the lock sleeve 2 moves downwards or upwards to a designated position, a plurality of strip teeth 8 are always meshed with the inner ring of the first toothed ring 3.

In this embodiment, a third steel ball 36 is disposed at the bottom end of the stud 6. Wherein, the third steel ball 36 is rotatably fitted at the bottom end of the stud 6.

In this embodiment, the fixing head 5 is connected to the stud 6 through a rotating shaft 9, a mounting block 10 is disposed on the rotating shaft 9, and a mounting hole 11 is disposed on the mounting block 10; the fine adjustment mechanism applied to the sighting telescope further comprises a clicking assembly, the clicking assembly comprises a top position screw 12, a first spring 13, a positioning pin 14 and a first steel ball 15, the top position screw 12 is in threaded fit with one end of the mounting hole 11, the positioning pin 14 and the first spring 13 are both matched in the mounting hole 11, the first spring 13 is located between the positioning pin 14 and the top position screw 12, the first steel ball 15 is arranged at the end part of the positioning pin 14, and the first steel ball 15 is propped against the inner ring of the second toothed ring 4. The first steel ball 15 is in a rotating fit with the end of the locating pin 14, and the first spring 13 provides enough elastic force for the locating pin 14, so that the first steel ball 15 can be propped against the inner ring of the second toothed ring 4.

In this embodiment, the fine adjustment mechanism applied to the sighting telescope further includes a hand wheel assembly, the hand wheel assembly includes a hand wheel 16, a locking screw 17, an elastic pad 18 and a flat pad 19, a through hole 20 is provided in the middle of the hand wheel 16, an annular boss 21 is provided on an inner wall of the through hole 20, the flat pad 19 is provided on the annular boss 21, the elastic pad 18 is provided on the flat pad 19, the locking screw 17 sequentially passes through the elastic pad 18 and the flat pad 19 and then is in threaded connection with the fixing head 5, and the elastic pad 18 and the flat pad 19 are compressed between a screw head of the locking screw 17 and the annular boss 21. Wherein the elastic pad 18 and the flat pad 19 play a role of preventing water and dust, and preventing water mist or dust from entering the inside of the present utility model from the fitting gap between the locking screw 17 and the fixing head 5.

In this embodiment, a third toothed ring 22 is disposed on the bottom surface of the annular boss 21, and the plurality of elongated teeth 8 are engaged with an inner ring of the third toothed ring 22.

In this embodiment, the hand wheel assembly further includes a first sealing ring 23, the fixing head 5 is provided with a first positioning groove 24, the first sealing ring 23 is adapted in the first positioning groove 24, and the first sealing ring 23 is pressed between the annular boss 21 and the fixing head 5. Wherein the first seal ring 23 plays a role of preventing water and dust, and prevents water mist or dust from entering the inside of the present utility model from the assembly gap between the annular boss 21 and the fixed head 5.

In this embodiment, the fine adjustment mechanism applied to the telescope further includes a positioning assembly, the positioning assembly includes two second steel balls 25 and two second springs 26, limiting holes 27 are formed on two sides of the lock sleeve 2, the second steel balls 25 and the second springs 26 are adapted to the limiting holes 27, a first annular groove 28 and a second annular groove 29 are formed in an inner ring of the hand wheel 16, the second annular groove 29 is located below the first annular groove 28, the second steel balls 25 are adapted to the first annular groove 28 or the second annular groove 29, and the second springs 26 press the second steel balls 25 against the hand wheel 16. Wherein the second steel ball 25 fits in the first annular groove 28 before the lock sleeve 2 is not depressed; after the sleeve 2 has been depressed, the second steel balls 25 fit into the second annular groove 29. The second spring 26 provides enough elasticity for the second steel ball 25, so that the second steel ball 25 can be pressed against the hand wheel 16, and when the lock sleeve 2 is pressed down or lifted up forcefully, the second steel ball 25 can be separated from the first annular groove 28 or the second annular groove 29, so that the second steel ball 25 is positioned and matched in the second annular groove 29 or the first annular groove 28.

In this embodiment, the outer side of the lock sleeve 2 is provided with a second positioning groove 30, the outer side of the adjusting seat 1 is provided with a third positioning groove 31, the rotating shaft 9 is provided with a fourth positioning groove 32, the fine adjustment mechanism applied to the sighting telescope further comprises a second sealing ring 33, a third sealing ring 34 and a fourth sealing ring 35, the second sealing ring 33 is adapted in the second positioning groove 30, the third sealing ring 34 is adapted in the third positioning groove 31, the fourth sealing ring 35 is adapted in the fourth positioning groove 32, the second sealing ring 33 is compressed between the hand wheel 16 and the lock sleeve 2, the third sealing ring 34 is compressed between the lock sleeve 2 and the adjusting seat 1, and the fourth sealing ring 35 is compressed between the screw sleeve 7 and the rotating shaft 9. Wherein the second seal ring 33, the third seal ring 34 and the fourth seal ring 35 all play a role in preventing water and dust, and prevent water mist or dust from entering the interior of the utility model from the assembly gaps between the hand wheel 16 and the lock sleeve 2, between the lock sleeve 2 and the adjusting seat 1, and between the screw sleeve 7 and the rotating shaft 9.

In this embodiment, the working principle of the present utility model is as follows:

when the lock sleeve 2 is lifted, the first toothed ring 3 is driven to move upwards until the second steel balls 25 are fitted in the first annular groove 28, the first toothed ring 3 is separated from the second toothed ring 4, the hand wheel 16 is screwed at the moment, the stud 6 can be driven to rotate, the third steel balls 36 are driven to move upwards or downwards, meanwhile, the first steel balls 15 roll on the inner ring of the second toothed ring 4, regular clicking sounds are generated, 50 lower clicking sounds are generated after each rotation of the hand wheel 16, and the third steel balls 36 linearly move in a stroke of 0.5mm each circle. When the third steel ball 36 moves downwards, the third steel ball 36 pushes against the lens in the sighting telescope to enable the lens to move and push against the elastic sheet arranged in the sighting telescope, and when the third steel ball 36 moves upwards, the elastic sheet pushes against the lens to move when recovering deformation, so that parameters such as focal length, magnification and the like of the sighting telescope are adjusted.

When the lock sleeve 2 is pressed down to drive the first toothed ring 3 to move downwards until the second steel balls 25 are fitted in the second annular groove 29, the outer ring of the first toothed ring 3 is meshed with the inner ring of the second toothed ring 4 again, as the hand wheel 16 is fixedly connected with the fixing head 5, the plurality of strip teeth 8 on the fixing head 5 are meshed with the inner ring of the first toothed ring 3, and the second toothed ring 4 is fixedly connected with the adjusting seat 1, when the hand wheel 16 is screwed again by force, the stud 6 does not rotate any, so that locking of the hand wheel 16 is realized, and even if a gun is vibrated or rocked, the reference of the sighting telescope can be ensured, and the reliability is high.

Claims

1. The utility model provides a be applied to fine setting mechanism of gun sight, it includes adjustment seat (1), adjusting screw and locking subassembly, adjusting screw with adjustment seat (1) threaded connection, its characterized in that: the lock assembly comprises a lock sleeve (2), a first toothed ring (3) and a second toothed ring (4), wherein the lock sleeve (2) is in sliding fit with the adjusting seat (1), the lock sleeve (2) is connected with the first toothed ring (3), the first toothed ring (3) is in limit fit with the adjusting screw, the second toothed ring (4) is connected with the adjusting seat (1), and the first toothed ring (3) is meshed with the second toothed ring (4).

2. The fine tuning mechanism for a telescope as recited in claim 1, wherein: the adjusting screw comprises a fixing head (5) and a stud (6), the fixing head (5) is connected with the stud (6), a threaded sleeve (7) is arranged on the adjusting seat (1), the stud (6) is in threaded fit with the threaded sleeve (7), a plurality of strip teeth (8) are arranged on the outer side of the fixing head (5), the strip teeth (8) are meshed with the inner ring of the first toothed ring (3), and the outer ring of the first toothed ring (3) is meshed with the inner ring of the second toothed ring (4).

3. The fine tuning mechanism for a telescope as recited in claim 2, wherein: the fixing head (5) is connected with the stud (6) through a rotating shaft (9), a mounting block (10) is arranged on the rotating shaft (9), and a mounting hole (11) is formed in the mounting block (10); the fine adjustment mechanism applied to the sighting telescope further comprises a clicking assembly, the clicking assembly comprises a top position screw (12), a first spring (13), a positioning pin (14) and a first steel ball (15), the top position screw (12) is in threaded fit with one end of the mounting hole (11), the positioning pin (14) and the first spring (13) are both matched in the mounting hole (11), the first spring (13) is located between the positioning pin (14) and the top position screw (12), the first steel ball (15) is arranged at the end part of the positioning pin (14), and the first steel ball (15) is pressed against the inner ring of the second toothed ring (4).

4. A fine tuning mechanism for a telescope as recited in claim 3, wherein: the fine adjustment mechanism applied to the sighting telescope further comprises a hand wheel assembly, the hand wheel assembly comprises a hand wheel (16), a locking screw (17), an elastic pad (18) and a flat pad (19), a through hole (20) is formed in the middle of the hand wheel (16), an annular boss (21) is arranged on the inner wall of the through hole (20), the flat pad (19) is arranged on the annular boss (21), the elastic pad (18) is arranged on the flat pad (19), the locking screw (17) sequentially penetrates through the elastic pad (18) and is in threaded connection with the fixing head (5) after the flat pad (19), and the elastic pad (18) and the flat pad (19) are tightly pressed between a screw head of the locking screw (17) and the annular boss (21).

5. The fine tuning mechanism for a telescope as recited in claim 4, wherein: the bottom surface of annular boss (21) is provided with third ring gear (22), a plurality of rectangular tooth (8) all with the inner circle of third ring gear (22) meshes.

6. The fine tuning mechanism for a telescope as recited in claim 4, wherein: the hand wheel assembly further comprises a first sealing ring (23), a first positioning groove (24) is formed in the fixing head (5), the first sealing ring (23) is matched with the first positioning groove (24), and the first sealing ring (23) is pressed between the annular boss (21) and the fixing head (5).

7. The fine tuning mechanism for a telescope as recited in claim 4, wherein: the fine adjustment mechanism applied to the sighting telescope further comprises a positioning assembly, the positioning assembly comprises two second steel balls (25) and two second springs (26), limiting holes (27) are formed in two sides of the lock sleeve (2), the second steel balls (25) and the second springs (26) are all matched in the limiting holes (27), a first annular groove (28) and a second annular groove (29) are formed in an inner ring of the hand wheel (16), the second annular groove (29) is located below the first annular groove (28), the second steel balls (25) are matched in the first annular groove (28) or the second annular groove (29), and the second springs (26) are used for propping the second steel balls (25) against the hand wheel (16).

8. The fine tuning mechanism for a telescope as recited in claim 4, wherein: the outer side of the lock sleeve (2) is provided with a second positioning groove (30), the outer side of the adjusting seat (1) is provided with a third positioning groove (31), the rotating shaft (9) is provided with a fourth positioning groove (32), the fine adjustment mechanism applied to the sighting telescope further comprises a second sealing ring (33), a third sealing ring (34) and a fourth sealing ring (35), the second sealing ring (33) is adapted in the second positioning groove (30), the third sealing ring (34) is adapted in the third positioning groove (31), the fourth sealing ring (35) is adapted in the fourth positioning groove (32), the second sealing ring (33) is pressed between the hand wheel (16) and the lock sleeve (2), the third sealing ring (34) is pressed between the lock sleeve (2) and the adjusting seat (1), and the fourth sealing ring (35) is pressed between the screw sleeve (7) and the rotating shaft (9).

9. The fine tuning mechanism for a telescope as recited in claim 2, wherein: the bottom end of the stud (6) is provided with a third steel ball (36).