CN220709440U - Lens position adjusting mechanism, laser inner core and laser sighting device - Google Patents

Abstract

The utility model relates to a lens position adjusting mechanism, a laser inner core and a laser sighting device, which comprises a first lens mounting seat, a first lens and a pull rod, wherein the front end of the pull rod is fixedly connected with the rear end of the lens mounting seat, and the rear end of the pull rod is connected with a sliding block; the sliding block is arranged in parallel with the first lens mounting seat and extends forwards along the axial direction of the first lens mounting seat; the front end top surface of the sliding block is provided with a first screw hole, and the shifting block above the first screw hole is connected with the first screw hole through a first screw penetrating through the thickness direction of the shifting block. The utility model has simple structure, no occupation of axial space, simple operation and quick focusing.

Description

Lens position adjusting mechanism, laser inner core and laser sighting device

Technical Field

The utility model relates to a lens position adjusting mechanism, a laser inner core and a laser sighting device.

Background

The utility model patent No. 201320495038. X discloses a three-in-one laser light source, which is characterized in that an inner core with three laser modules, namely a light source fixing piece, is arranged in a shell, and the three light sources are fixed on the same inner shell, so that the three light sources can be adjusted simultaneously during use, and the three-in-one laser light source is small in size, portable and convenient to use. One of the outstanding designs is a focusing device for the first laser module, as can be seen from the description of the patent and the accompanying figure 2 in combination with the corresponding text, the focusing device has a complex structure, a large length and a large axial space, and because the focusing is realized by changing the position of the laser tube by realizing circumferential screw rotation through the focusing hand wheel, the focusing process is to convert circumferential rotation into front-back linear motion of the laser tube seat, and obviously has motion loss, especially slow focusing speed.

Disclosure of Invention

The utility model aims to overcome the defects of complex focusing structure and low focusing speed of the existing laser sighting device.

In order to achieve the above object, the present utility model provides a lens position adjusting mechanism, which comprises a first lens mounting seat, a first lens mounted at the front end of the first lens mounting seat, and a pull rod, wherein the front end of the pull rod is fixedly connected with the rear end of the lens mounting seat, and the rear end of the pull rod is connected with a sliding block; the sliding block is arranged in parallel with the first lens mounting seat and extends forwards along the axial direction of the first lens mounting seat;

the top surface of the front end of the sliding block is provided with a first screw hole, and a shifting block arranged above the first screw hole is connected with the first screw hole through a first screw penetrating through the thickness direction of the shifting block.

As a further improvement, the rear end of the sliding block extends towards one side of the pull rod to form a bending part; the rear end part of the pull rod is provided with a second screw hole;

the second screw passes through the step hole on the bending part from the rear direction of the bending part to be connected with the second screw hole.

As a further improvement, the end face of the rear end of the pull rod is a concave spherical surface I;

the step surface of the step hole is arranged on the front end surface of the bending part, the rear end surface of the bending part is a concave spherical surface II, and the rear end surface is overlapped with the rear end surface of the step hole;

an elastic washer and a first spherical gasket are sequentially arranged in the step surface of the step hole from inside to outside, and the spherical surface of the first spherical gasket is matched with the concave spherical surface I; a second spherical gasket is arranged in the concave spherical surface II, and the second spherical gasket is matched with the spherical surface of the first spherical gasket; the spherical surfaces of the first spherical gasket and the second spherical gasket are convex spherical surfaces.

As a further improvement, the outer side surface of the front end of the pull rod is a sphere and is arranged in a sphere cavity at the rear end of the first lens mounting seat; the retaining ring is sleeved on the spherical surface and is in threaded connection with the threaded surface at the rear side of the spherical cavity; the front side of the inner surface of the retainer ring is an arc-shaped surface with the radius being larger than the sphere diameter of the sphere, and the rear side of the inner surface of the retainer ring is an inner convex ring with the radius being smaller than the sphere diameter of the sphere.

As a further improvement, the bottom surface of the sliding block is a corrugated surface.

As a further improvement, the bottom surface of the shifting block is provided with a hollow shifting lever, the lower end of the hollow shifting lever can be inserted into the first screw hole, and the screw rod of the first screw is arranged in the hollow shifting lever and extends downwards to be connected with the first screw hole.

A laser inner core comprises an inner core shell, wherein a lens mounting cavity extending along the length direction is formed in one side of the inner core shell, and a photodiode arranged at the top end of a fixing seat and a second lens fixed on a second lens mounting seat are sequentially arranged at the front end of the lens mounting cavity from inside to outside; the lens position adjusting mechanism is also included;

the first lens mounting seat is arranged in the lens mounting cavity, and is arranged at the rear side of the fixed seat;

the rear end of the first lens mounting seat is positioned at the rear end of the lens mounting cavity;

the sliding blocks are arranged on the outer side of the inner core shell in parallel;

a radial through chute is formed on the side wall of the first lens mounting seat, and the chute is arranged between the front end and the rear end of the first lens mounting seat;

the rear end of the chute is provided with a laser tube seat, and the front end of the mechanism tube seat is provided with a laser tube LD;

two opposite third screws pass through the step holes on the inner core shell from outside and are respectively fixedly connected with screw holes on the laser tube base.

The laser sighting device comprises a sighting device shell, wherein the sighting device shell is internally provided with the laser inner core;

the top surface of the sighting telescope shell is provided with a strip-shaped through hole, the shifting block is arranged at the outer side of the strip-shaped through hole, and the first screw penetrates through the shifting block and then is connected with a first screw hole arranged at the inner side of the strip-shaped through hole;

the length of the shifting block is larger than that of the strip-shaped through hole, so that when the shifting block drives the sliding block to move along the length direction of the strip-shaped through hole, the shifting block is always positioned at the outer side of the strip-shaped through hole.

As a further improvement, the bottom surface of the shifting block is provided with a hollow shifting lever, the lower end of the hollow shifting lever is inserted into the first screw hole, and the screw rod of the first screw is arranged in the hollow shifting lever and extends downwards to be connected with the first screw hole.

As a further improvement, the rear end of the sliding block extends towards one side of the pull rod to form a bending part; the rear end part of the pull rod is provided with a second screw hole; the second screw penetrates through the step hole on the bending part and is connected with the second screw hole.

The utility model has the advantages that: simple structure, no occupation of axial space, simple operation and quick focusing.

Drawings

Fig. 1 is a schematic diagram of the component composition of a lens position adjustment mechanism.

Fig. 2 is a schematic view of a slider.

Fig. 3 is a schematic structural view of the tie rod.

Fig. 4 is a schematic diagram of a second structure of the slider.

Fig. 5 is a schematic view of the structure of the rear end face of the bending part of the slider.

Fig. 6 is a schematic view of a laser core structure.

Fig. 7 is an exploded view of the laser core shown in fig. 6.

Fig. 8 is a schematic view of the front end face of the laser core.

Fig. 9 is A-A view of fig. 8.

Fig. 10 is a schematic view of a laser sight.

Fig. 11 is a schematic view of the arrangement of the strip-shaped through holes.

Fig. 12 is a schematic view of a laser sight front end face.

Fig. 13 is a B-B view of fig. 12.

Fig. 14 is a horizontal axial cross-section of a laser sight.

Fig. 15 is an exploded view of the laser sight.

Reference numerals illustrate:

1. a first lens mount; 2. a first lens; 3. a pull rod; 4. a slide block; 5. a first screw hole; 6. a shifting block; 7. a first screw; 8. a bending part; 9. a second screw hole; 10. a second screw; 11. a step hole; 12. concave spherical surface I; 13. a retainer ring; 14. an inner convex ring; 15. a bump; 16. a hollow deflector rod; 17. a lens gland; 18. an elastic washer; 19. an inner core housing; 20. a lens mounting cavity; 21. a fixing seat; 22. a photodiode; 23. a second lens mount; 24. a second lens; 25. a chute; 26. a laser tube seat; 27. a laser tube LD; 28. a third screw; 29. an aiming tool housing; 30. a laser inner core; 31. a strip-shaped through hole; 32. a second lens coil; 33. a bottom surface; 34. steel balls; 35. a spring; 36. a screw; 37. a dial block gasket; 38. a battery compartment; 39. a battery; 40. a driving plate; 41. a main control board; 42. a rear cover assembly; 43. a push button switch; 44. a toggle switch; 45. an indicator light; 46. a battery cover assembly; 47. a lens assembly; 48. a laser inner core pressing ring; 49. an elastic washer; 50. concave spherical surface II; 51. a first spherical spacer; 52. a second spherical spacer.

Detailed Description

In order to overcome the defects of complex focusing structure and low focusing speed of the existing laser sighting telescope, the embodiment provides a lens position adjusting mechanism shown in fig. 1, which comprises a first lens mounting seat 1, a first lens 2 arranged at the front end of the first lens mounting seat 1, and particularly a pull rod 3, wherein the front end of the pull rod 3 is fixedly connected with the rear end of the lens mounting seat 1, and the rear end of the pull rod 3 is connected with a sliding block 4; the slider 4 is disposed in parallel with the first lens mount 1 and extends forward in the axial direction of the first lens mount 1.

In order to realize the connection between the slider 4 and the pull rod 3, in this embodiment, a first screw hole 5 is specially formed in the top surface of the front end of the slider 4 (located in front of the left hand side of the viewer), a dial block 6 disposed above the first screw hole 5 is connected to the first screw hole 5 through a first screw 7 penetrating through the thickness direction of the dial block 6, i.e. the first screw 7 passes through a through hole in the dial block 6 downwards from the top surface of the dial block 6 and then is in threaded connection with the first screw hole 5.

The sliding block 4 is driven to move by means of the connection of the first screw 7 and the first screw hole 5 through stirring the shifting block 6, the sliding block 4 immediately drives the pull rod 3 fixedly connected with the sliding block 4 to move, and finally the first lens mounting seat 1 fixedly connected with the sliding block 3 is driven to move through the pull rod 3, so that the front-back distance of the first lens 2 is changed, and the focal length is changed.

In order to facilitate the simple and reliable connection with the pull rod 3, the present embodiment provides the slider 4 as shown in fig. 2, and the rear end thereof extends toward one side of the pull rod 3 to form a bending portion 8; and the rear end part of the pull rod 3 is provided with a second screw hole 9 shown in fig. 3; the second screw 10 passes through a stepped hole 11 on the bending part 8 and is connected with the second screw hole 9. In practice, the included angle between the bending portion 8 and the main body of the slider 4 is preferably approximately 90 °, so that the slider 4 is well ensured to be parallel to the pull rod 3 and then parallel to the first lens holder 1, and when the lens holder is installed in a cavity of the sighting telescope housing, all components have good coaxiality, and the sighting telescope precision is guaranteed.

In order to facilitate positioning and assembly, the end face of the rear end of the pull rod 3 provided by the embodiment is a concave spherical surface I12; the step surface of the step hole 1 of the sliding block 4 is arranged on the front end surface of the bending part 8 shown in fig. 4, the rear end surface of the bending part 8 is a concave spherical surface II 50 as shown in fig. 5, and the rear end surface is overlapped with the rear end surface of the step hole 11; the elastic washer 18 and the first spherical gasket 51 shown in fig. 1 are sequentially arranged in the step surface of the step hole 11 from inside to outside, and the spherical surface of the first spherical gasket 51 is matched with the concave spherical surface one 12 shown in fig. 3; the second spherical spacer 52 shown in fig. 1 is disposed in the concave spherical surface two 50 shown in fig. 5, and the second spherical spacer 52 is matched with the spherical surface of the first spherical spacer 51; the spherical surfaces of the first spherical spacer 51 and the second spherical spacer 52 are convex spherical surfaces.

As can be seen from fig. 1, in the present embodiment, the outer side surface of the front end of the pull rod 3 is a spherical surface and is disposed in the spherical cavity at the rear end of the first lens mount 1; the retainer ring 13 is sleeved on the spherical surface, and the retainer ring 13 is in threaded connection with a threaded surface at the rear side of the spherical cavity; the front side of the inner surface of the retainer ring 13 is an arc-shaped surface with a radius larger than the sphere diameter of the sphere, and the rear side of the inner surface of the retainer ring 13 is an inner convex ring 14 with a radius smaller than the sphere diameter of the sphere. Through the setting of retaining ring 13 (in practice, the outer wall is provided with the screw thread retaining ring of screw thread) and the sphere chamber threaded connection of the rear end of first lens mount pad 1, and interior bulge loop 14, realize the connection of pull rod 3 and first transparent mount pad 1, simultaneously, the sphere contact surface of contact two strengthens the flexible contact and the flexibility of contact surface, avoids the operation hindrance that the card hinders, the card dun phenomenon arouses in the use.

As can be seen from fig. 4, the bottom surface 33 of the slider 4 is a corrugated surface, and is used for pressing the steel ball 34 on the bottom surface 33 by installing a spring top pin assembly composed of the steel ball 34, the spring 35 and the screw 36 on the housing of the sighting device shown in fig. 12 after the slider 4 is installed in the sighting device, when the slider 4 moves, the clicking sound generated by friction is helpful for an operator to roughly know the adjustment distance of the focal length, so that the comfort and convenience of use are improved, meanwhile, the structure is reliably positioned, the focusing structure is not shifted due to inertia of impact vibration when the firearm shoots, and accordingly, the change of the angle of an output light spot is avoided.

In order to make the interaction between the shifting block 6 and the sliding block 4 more stable, in this embodiment, a hollow shifting lever 16 is provided on the bottom surface of the shifting block 6, the lower end of the hollow shifting lever 16 can be inserted into the first screw hole 5, the screw rod of the first screw 7 is placed in the hollow shifting lever 16 and extends downwards to be connected with the first screw hole 5, thus, the cross overlapping area of the shifting block 6 and the sliding block 4 is enhanced by the hollow shifting lever 16 inserted into the first screw hole 5, and when the hollow shifting lever 16 is tightly pressed into the first screw hole 5 by a fastener when being installed in the shell of the sighting device, the connection stability of the two is ensured.

Based on the foregoing lens position adjustment mechanism, the present embodiment provides a laser core shown in fig. 6, 7, 8 and 9 (equivalent to a three-in-one light source fixture integrated with three laser modules in the prior art, herein referred to as a light source fixture in the utility model patent No. 201320495038. X or a three-in-one laser module in the utility model patent No. 201820873768.3), which comprises a core case 19, a lens mounting cavity 20 (similar to the mounting cavity of the first laser module in the utility model patent No. 201320495038. X) extending in the longitudinal direction is opened on one side of the core case 19, and a photodiode 22 placed on the top end of a fixing base 21 and a second lens 24 fixed on a second lens mounting base 23 are sequentially mounted from inside to outside on the front end of the lens mounting cavity 20 (see fig. 9 for a potential relation); the laser core is characterized in that the focusing mechanism is the lens position adjusting mechanism shown in the previous embodiment, namely, fig. 1; i.e. the lens position adjusting mechanism is mounted in the lens mounting cavity 20 and is placed at the rear side of the fixing seat 21 (the right hand side position of the viewer is the rear). Specifically, a first lens mounting seat 1 of the lens position adjusting mechanism is mounted in the lens mounting cavity 20, and the first lens mounting seat 1 is arranged at the rear side of the fixing seat 21; meanwhile, the rear end of the first lens mounting base 1 is located at the rear end of the lens mounting cavity 20, connection of the pull rod 3 is facilitated, and meanwhile a large axial space is ensured in the adjusting range of the focusing distance. And the slider 4 of the lens position adjusting mechanism is disposed in parallel on the outside of the core housing 19 (see fig. 14).

In this embodiment, a laser tube LD27 is further added, as shown in fig. 7, and a radially through chute 25 is formed on a side wall of the first lens mount 1, where the chute 25 is disposed between the front end and the rear end of the first lens mount 1; a laser tube holder 26 is provided at the rear end of the chute 25, and a laser tube LD27 is mounted at the front end of the laser tube holder 26 so that the outgoing light of the laser tube LD is directed forward toward the first lens 2. In order to ensure the fixation of the position of the laser diode LD, the present embodiment is fixedly connected with the screw hole on the laser diode holder 26 after passing through the stepped hole on the inner core housing 19 from outside through two opposite third screws 28, that is, the top surface and the bottom surface of the laser diode holder 26 are respectively located at the upper opening and the lower opening of the chute 25, and in practical application, the top surface and the bottom surface of the laser diode holder 26 may respectively extend to the outer sides of the upper opening and the lower opening of the chute 25.

In this embodiment, the first lens 2 is a beam expander lens, and the second lens 24 is a convex lens, and meanwhile, it should be noted that the photodiode 22 is used to feed back the energy received by the laser diode LD27 to the main control board 41 (see fig. 10) when the first lens 2 is adjusted back and forth, so that the energy of the light beam passing through the second lens 24 per unit area is consistent.

Based on the foregoing laser core, this embodiment provides a laser sight shown in fig. 10, 11, 12, 13, 14 and 15, including a sight housing 29, where one side of the sight housing 29 is provided with the laser core 30 provided in the foregoing embodiment, and the other side is provided with a battery compartment 38; the top surface of the sighting telescope shell 29 is provided with a strip-shaped through hole 31 shown in fig. 12, the shifting block 6 is arranged outside the strip-shaped through hole 31 as shown in fig. 15, namely, is arranged outside the top surface of the sighting telescope shell 29, and the first screw 7 penetrates through the shifting block 6 and then is connected with the first screw hole 5 which is arranged inside the strip-shaped through hole 31 and is shown in fig. 13, so that the connection between the shifting block 6 and the sliding block 4 is completed (the sliding block 4 is arranged inside the sighting telescope shell 29 and is positioned between the laser inner core 30 and the battery compartment 38); the length of the shifting block 6 is greater than that of the strip-shaped through hole 31, so that when the shifting block 6 drives the sliding block 4 to move along the length direction of the strip-shaped through hole 31, the shifting block 6 is always positioned outside the strip-shaped through hole 31.

While the lower end of the hollow deflector rod 16 of the bottom surface of the deflector block 6 is inserted into the first screw hole 5, and the screw rod of the first screw 7 is placed in the hollow deflector rod 16 and extends downwards to be connected with the first screw hole 5, so that the reliability of the connection of the deflector block 6 and the sliding block 4 is enhanced.

The rear end of the slider 4 extends toward the pull rod 3 to form a bent portion 8, and the bent portion 8 is connected to a second screw hole 9 provided in the rear end portion of the pull rod 3 by a second screw 10, and as shown in fig. 13, extends in a bent manner toward the laser core.

As can be seen from fig. 10, the laser sight provided in this embodiment further includes a push button switch 43, a toggle switch 44, an indicator lamp 45, a battery cover assembly 46, a lens assembly 47, and a driving board 40, a main control board 41, a rear cover assembly 42, and a laser core pressing ring 48 shown in fig. 14, which are conventional techniques and are not described herein again.

Claims (10)

1. The utility model provides a lens position adjustment mechanism, includes first lens mount pad (1), installs first lens (2) at this first lens mount pad (1) front end, its characterized in that: the lens holder also comprises a pull rod (3), wherein the front end of the pull rod (3) is fixedly connected with the rear end of the lens mounting seat (1), and the rear end of the pull rod (3) is connected with a sliding block (4); the sliding block (4) is arranged in parallel with the first lens mounting seat (1) and extends forwards along the axial direction of the first lens mounting seat (1);

the top surface of the front end of the sliding block (4) is provided with a first screw hole (5), and a shifting block (6) arranged above the first screw hole (5) is connected with the first screw hole (5) through a first screw (7) penetrating through the thickness direction of the shifting block (6).

2. The lens position adjustment mechanism of claim 1, wherein: the rear end of the sliding block (4) extends towards one side of the pull rod (3) to form a bending part (8); the rear end part of the pull rod (3) is provided with a second screw hole (9);

the second screw (10) passes through the step hole (11) on the bending part (8) from the rear direction of the bending part (8) to be connected with the second screw hole (9).

3. The lens position adjustment mechanism of claim 2, wherein: the end face of the rear end of the pull rod (3) is a concave spherical face I (12);

the step surface of the step hole (11) is arranged on the front end surface of the bending part (8), the rear end surface of the bending part (8) is a concave spherical surface II (50), and the rear end surface is overlapped with the rear end surface of the step hole (11);

an elastic gasket (18) and a first spherical gasket (51) are sequentially arranged in the step surface of the step hole (11) from inside to outside, and the spherical surface of the first spherical gasket (51) is matched with the concave spherical surface I (12); a second spherical gasket (52) is arranged in the concave spherical surface II (50), and the second spherical gasket (52) is matched with the spherical surface of the first spherical gasket (51); the spherical surfaces of the first spherical gasket (51) and the second spherical gasket (52) are convex spherical surfaces.

4. The lens position adjustment mechanism of claim 1, wherein: the outer side surface of the front end of the pull rod (3) is a sphere and is arranged in a sphere cavity at the rear end of the first lens mounting seat (1); the retainer ring (13) is sleeved on the spherical surface, and the retainer ring (13) is in threaded connection with a threaded surface at the rear side of the spherical cavity; the front side of the inner surface of the retainer ring (13) is an arc-shaped surface with the radius larger than the sphere diameter of the sphere, and the rear side of the inner surface of the retainer ring (13) is an inner convex ring (14) with the radius smaller than the sphere diameter of the sphere.

5. The lens position adjustment mechanism of claim 1, wherein: the bottom surface of the sliding block (4) is a corrugated surface.

6. The lens position adjustment mechanism of claim 1, wherein: the bottom surface of the shifting block (6) is provided with a hollow shifting lever (16), the lower end of the hollow shifting lever (16) can be inserted into the first screw hole (5), and the screw rod of the first screw (7) is arranged in the hollow shifting lever (16) and extends downwards to be connected with the first screw hole (5).

7. The laser inner core comprises an inner core shell (19), wherein a lens mounting cavity (20) extending along the length direction is formed in one side of the inner core shell (19), a photodiode (22) arranged at the top end of a fixing seat (21) and a second lens (24) fixed on a second lens mounting seat (23) are sequentially arranged at the front end of the lens mounting cavity (20) from inside to outside; the lens position adjustment mechanism of claim 1;

the first lens mounting seat (1) is arranged in the lens mounting cavity (20), and the first lens mounting seat (1) is arranged at the rear side of the fixed seat (21);

the rear end of the first lens mounting seat (1) is positioned at the rear end of the lens mounting cavity (20);

the sliding blocks (4) are arranged on the outer side of the inner core shell (19) in parallel;

a radial through chute (25) is formed in the side wall of the first lens mounting seat (1), and the chute (25) is arranged between the front end and the rear end of the first lens mounting seat (1);

the rear end of the chute (25) is provided with a laser tube seat (26), and the front end of the laser tube seat (26) is provided with a laser tube LD (27);

two opposite third screws (28) pass through the stepped holes on the inner core shell (19) from outside and are respectively fixedly connected with screw holes on the laser tube seat (26).

8. A laser sight comprising a sight housing (29), characterized in that a laser core (30) according to claim 7 is arranged in the sight housing (29);

the top surface of the sighting telescope shell (29) is provided with a strip-shaped through hole (31), the shifting block (6) is arranged at the outer side of the strip-shaped through hole (31), and the first screw (7) penetrates through the shifting block (6) and then is connected with a first screw hole (5) arranged at the inner side of the strip-shaped through hole (31);

the length of the shifting block (6) is larger than that of the strip-shaped through hole (31), so that when the shifting block (6) drives the sliding block (4) to move along the length direction of the strip-shaped through hole (31), the shifting block (6) is always positioned outside the strip-shaped through hole (31).

9. The laser sight according to claim 8, characterized in that the bottom surface of the dial (6) is provided with a hollow dial (16), the lower end of the hollow dial (16) being inserted into the first screw hole (5), and the shank of the first screw (7) being placed in the hollow dial (16) and extending downward to connect with the first screw hole (5).

10. The laser sight according to claim 9, characterized in that the rear end of the slider (4) extends towards one side of the pull rod (3) to form a bending part (8); the rear end part of the pull rod (3) is provided with a second screw hole (9); the second screw (10) passes through the step hole (11) on the bending part (8) to be connected with the second screw hole (9).