Lens position adjustment mechanism, laser inner core, and laser sight

Abstract

A lens position adjustment mechanism, a laser inner core (30), and a laser sight. The lens position adjustment mechanism comprises a first lens mounting base (1), a first lens (2), and a pull rod (3). The front end of the pull rod (3) is fixedly connected to the rear end of the first lens mounting base (1), and the rear end of the pull rod (3) is connected to a sliding block (4); the sliding block (4) is arranged in parallel to the first lens mounting base (1) and extends forwards in the axial direction of the first lens mounting base (1); a first screw hole (5) is formed in the top surface of the front end of the sliding block (4), and a spur block (6) above the first screw hole (5) is connected to the first screw hole (5) by means of a first screw (7) running through in the thickness direction of the spur block (6). Therefore, the structure is simple, the axial space is not occupied, the operation is simple and convenient, and the focusing is rapid.

Description

Lens position adjustment mechanism, laser core and laser sight Technical Field

[0001] The invention relates to a lens position adjustment mechanism, a laser inner core and a laser sight. Background Art

[0002] Patent No. 201320495338.X discloses a three-in-one laser light source. This light source is fixed to the same inner shell by disposing an inner core containing three laser modules, i.e., a light source fixture, within the shell. These three light sources can be adjusted simultaneously during use, making them compact, portable, and easy to use. One particularly prominent design is the focusing device for the first laser module. As can be seen from Figure 2 of the patent specification, combined with its corresponding textual description, this focusing device has a complex structure, is relatively long, and occupies a large axial space. Focusing is achieved by changing the position of the laser tube through circumferential threaded rotation of a focusing handwheel. The focusing process converts circumferential rotation into forward and backward linear motion of the laser tube holder. This obviously results in motion loss, and the focusing speed is particularly slow.

[0003] Summary of the Invention

[0004] The purpose of the present invention is to overcome the defects of the existing laser sighting device, such as the complex focusing structure and slow focusing speed.

[0005] To achieve the above-mentioned object, the present invention provides a lens position adjustment mechanism, comprising a first lens mount, a first lens mounted at the front end of the first lens mount, and a pull rod, the front end of the pull rod being fixedly connected to the rear end of the lens mount, the rear end of the pull rod being connected to a slider; the slider is arranged parallel to the first lens mount and extends forward along the axial direction of the first lens mount;

[0006] A first screw hole is formed on the top surface of the front end of the sliding block, and a shift block placed above the first screw hole is connected to the first screw hole via a first screw that penetrates the thickness direction of the shift block.

[0007] As a further improvement, the rear end of the slider extends toward one side of the pull rod to form a bent portion; the rear end of the pull rod is provided with a second screw hole;

[0008] The second screw passes through the stepped hole on the bent portion from the rear to the front and is connected with the second screw hole.

[0009] As a further improvement, the rear end surface of the pull rod is a concave spherical surface 1;

[0010] The step surface of the step hole is arranged on the front end surface of the bent portion, and the rear end surface of the bent portion is a second concave spherical surface, and the rear end surface coincides with the rear end surface of the step hole;

[0011] An elastic washer and a first spherical gasket are placed in sequence from the inside to the outside on the step surface of the step hole, and the spherical surface of the first spherical gasket cooperates with the first concave spherical surface; a second spherical gasket is arranged in the second concave spherical surface, and the second spherical gasket cooperates with the spherical surface of the first spherical gasket; the spherical surfaces of the first spherical gasket and the second spherical gasket are both convex spherical surfaces.

[0012] As a further improvement, the outer side surface of the front end of the pull rod is a spherical surface, which is placed in the spherical cavity at the rear end of the first lens mount; the retaining ring is sleeved on the spherical surface, and the retaining ring is threadedly connected to the threaded surface on the rear side of the spherical cavity; the front side of the inner surface of the retaining ring is an arc surface with a radius greater than the spherical diameter of the spherical surface, and the rear side of the inner surface of the retaining ring is an inner convex ring with a radius smaller than the spherical diameter of the spherical surface.

[0013] As a further improvement, the bottom surface of the slider is a corrugated surface.

[0014] As a further improvement, a hollow shift rod is provided on the bottom surface of the shift block, the lower end of the hollow shift rod can be inserted into the first screw hole, and the screw rod of the first screw is placed in the hollow shift rod and extends downward to connect with the first screw hole.

[0015] A laser core comprises an inner core housing, one side of the inner core housing being provided with a lens mounting cavity extending in the longitudinal direction, the front end of the lens mounting cavity being provided with a photodiode placed on the top of a fixing seat and a second lens fixed on a second lens mounting seat in sequence from the inside out; and the lens position adjustment mechanism mentioned above is also included;

[0016] The first lens mounting seat is mounted in the lens mounting cavity, and the first lens mounting seat is placed on the rear side of the fixing seat;

[0017] The rear end of the first lens mounting seat is located at the rear end of the lens mounting cavity;

[0018] The slider is arranged parallel to the outer side of the inner core shell;

[0019] A radially penetrating sliding groove is provided on the side wall of the first lens mounting seat, and the sliding groove is located between the front end and the rear end of the first lens mounting seat;

[0020] A laser tube holder is provided at the rear end of the slideway, and a laser tube LD is installed at the front end of the holder;

[0021] Two opposite third screws pass through the stepped holes on the inner core shell from the outside and are fixedly connected with the screw holes on the laser tube seat respectively.

[0022] A laser sight, comprising a sight housing, wherein the laser inner core is arranged in the sight housing;

[0023] A strip-shaped through hole is formed on the top surface of the sight housing, the shift block is placed outside the strip-shaped through hole, and the first screw passes through the shift block and is connected to the first screw hole located inside the strip-shaped through hole;

[0024] The length of the shift block is greater than the length of the strip-shaped through hole, so that when the shift block drives the slider to move along the length direction of the strip-shaped through hole, the shift block is always located outside the strip-shaped through hole.

[0025] As a further improvement, a hollow shift rod is provided on the bottom surface of the shift block, the lower end of the hollow shift rod is inserted into the first screw hole, and the screw rod of the first screw is placed in the hollow shift rod and extends downward to connect with the first screw hole.

[0026] As a further improvement, the rear end of the slider extends toward one side of the pull rod to form a bent portion; a second screw hole is provided at the rear end of the pull rod; and a second screw passes through the through hole on the bent portion and is connected to the second screw hole.

[0027] The advantages of the present invention are simple structure, no axial space occupation, easy operation and fast focusing. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] FIG1 is a schematic diagram showing the components of a lens position adjustment mechanism.

[0029] FIG2 is a structural diagram 1 of a slider.

[0030] FIG3 is a schematic structural diagram of the pull rod.

[0031] FIG4 is a second structural diagram of the slider.

[0032] FIG5 is a schematic structural diagram of the rear end surface of the bending portion of the slider.

[0033] FIG6 is a schematic diagram of the structure of a laser core.

[0034] FIG. 7 is an exploded view of the laser core shown in FIG. 6 .

[0035] FIG8 is a schematic diagram of the front end face of the laser core.

[0036] FIG. 9 is an AA view of FIG. 8 .

[0037] FIG10 is a schematic diagram of a laser sight.

[0038] FIG11 is a schematic diagram of the arrangement of strip-shaped through holes.

[0039] Figure 12 is a schematic diagram of the front end of the laser sight.

[0040] FIG. 13 is a BB view of FIG. 12 .

[0041] FIG14 is a horizontal axial cross-sectional view of the laser sight.

[0042] Figure 15 is an exploded view of the laser sight.

[0043] FIG16 is a schematic diagram of the setting structure of the potentiometer type displacement sensor.

[0044] FIG17 is an exploded view of the structure shown in FIG16 .

[0045] FIG18 is a cross-sectional view of the laser sight, used to illustrate the arrangement of the potentiometer-type displacement sensor.

[0046] FIG19 is an exploded view of the laser sight, used to illustrate the arrangement of the potentiometer-type displacement sensor.

[0047] Explanation of the accompanying symbols: 1. First lens mounting seat; 2. First lens; 3. Pull rod; 4. Slider; 5. First screw hole; 6. Push block; 7. First screw; 8. Bending portion; 9. Second screw hole; 10. Second screw; 11. Through hole; 12. Inner concave spherical surface 1; 13. Retaining ring; 14. Inner convex ring; 15. Protrusion; 16. Hollow push rod; 17. Lens pressure cover; 18. Elastic washer; 19. Inner core shell; 20. Lens mounting cavity; 21. Fixing seat; 22. Photodiode; 23. Second lens mounting seat; 24. Second lens; 25. Slide groove; 26. Laser tube seat; 27. Laser tube LD; 28. Third screw; 29. ​​Sighting tool housing; 30. Laser core; 31. Strip-shaped through hole; 32. Second lens screw; 33. Bottom surface; 34. Steel ball; 35. Spring; 36. Screw; 37. Dial block seal; 38. Battery compartment; 39. Battery; 40. Driver board; 41. Main control board; 42. Back cover assembly; 43. Push button switch; 44. Toggle switch; 45. Indicator light; 46. Battery cover assembly; 47. Lens assembly; 48. Laser core pressure ring; 49. Elastic washer; 50. Second concave spherical surface; 51. First spherical gasket; 52. Second spherical gasket; 53. Potentiometer displacement sensor; 54. Brush push rod; 55. Limit notch; 56. Sliding potentiometer mounting seat. DETAILED DESCRIPTION

[0048] In order to overcome the defects of complex focusing structure and slow focusing speed in existing laser sights, this embodiment provides a lens position adjustment mechanism as shown in Figure 1, including a first lens mount 1, a first lens 2 mounted on the front end of the first lens mount 1, and in particular, a pull rod 3, the front end of the pull rod 3 is fixedly connected to the rear end of the lens mount 1, and the rear end of the pull rod 3 is connected to a slider 4; the slider 4 is arranged parallel to the first lens mount 1 and extends forward along the axial direction of the first lens mount 1.

[0049] In order to realize the connection between the slider 4 and the pull rod 3, this embodiment specially opens a first screw hole 5 on the front end top surface of the slider 4 (the front is on the left hand side of the viewer), and a shift block 6 placed above the first screw hole 5 is connected to the first screw hole 5 through a first screw 7 that penetrates the thickness direction of the shift block 6, that is, the first screw 7 passes through the through hole on the shift block 6 from the top surface of the shift block 6 downward and is threadedly connected to the first screw hole 5.

[0050] By toggling the dial block 6, the slider 4 is driven to move with the help of the connection between the first screw 7 and the first screw hole 5, and the slider 4 then drives the pull rod 3 fixed thereto to move, and finally drives the first lens mount 1 fixed thereto to move through the pull rod 3, thereby changing the front and back distance of the first lens 2 and completing the change of the focal length. Compared with the focusing structure of the prior art, this focusing method does not need to occupy the axial space of the sight because the slider 4 is placed parallel to the pull rod 3, and the dial block 6 is arranged above the first lens mount 1. When the sight is installed, it is located on the top surface of the sight housing. During operation, the focal length can be adjusted by moving the dial block 6 axially back and forth. The operation is very convenient, and the distance adjustment feels more precise.

[0051] To facilitate a simple and reliable connection with the pull rod 3, this embodiment provides a slider 4 as shown in FIG2 , whose rear end extends toward the pull rod 3 to form a bent portion 8. A second screw hole 9 is provided at the rear end of the pull rod 3, as shown in FIG3 . A second screw 10 passes through a through hole 11 in the bent portion 8 and is connected to the second screw hole 9. In practice, the angle between the bent portion 8 and the main body of the slider 4 is preferably approximately 90°. This ensures that the slider 4 is positioned parallel to the pull rod 3 and, in turn, to the first lens holder 1. This ensures that all components are coaxial when installed in the cavity of the sight housing, thereby ensuring the accuracy of the sight.

[0052] In order to facilitate positioning and assembly, the rear end face of the pull rod 3 provided in this embodiment is a concave spherical surface 12; the step surface of the step hole 1 of the slider 4 is arranged on the front end face of the bending portion 8 shown in Figure 4, and the rear end face of the bending portion 8 is a concave spherical surface 2 50 as shown in Figure 5, and the rear end face coincides with the rear end face of the step hole 11; and the step surface of the step hole 11 is sequentially arranged with the elastic washer 18 and the first spherical gasket 51 shown in Figure 1 from the inside to the outside, and the spherical surface of the first spherical gasket 51 cooperates with the concave spherical surface 12 shown in Figure 3; and the second spherical gasket 52 shown in Figure 1 is arranged in the concave spherical surface 2 50 shown in Figure 5, and the second spherical gasket 52 cooperates 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 both convex spherical surfaces.

[0053] As can be seen from Figure 1, in this embodiment, the front outer side surface of the pull rod 3 is a spherical surface, which is placed in the spherical cavity at the rear end of the first lens mounting seat 1; the retaining ring 13 is sleeved on the spherical surface, and the retaining ring 13 is threadedly connected to the threaded surface at the rear side of the spherical cavity; the front side of the inner surface of the retaining ring 13 is an arcuate surface with a radius greater than the diameter of the sphere, and the rear side of the inner surface of the retaining ring 13 is an inner convex ring 14 with a radius less than the diameter of the sphere. The retaining ring 13 (actually a threaded retaining ring with threads on the outer wall) is threadedly connected to the spherical cavity at the rear end of the first lens mounting seat 1, and the inner convex ring 14 is provided to achieve the connection between the pull rod 3 and the first transparent mounting seat 1. At the same time, the spherical contact surface between the two enhances the flexible contact and flexibility of the contact surface, avoiding operational obstructions caused by jamming and blocking during use.

[0054] As can be seen from Figure 4, the bottom surface 33 of the slider 4 is a corrugated surface. When the slider 4 is installed in the sight, a spring push pin assembly consisting of a steel ball 34, a spring 35 and a screw 36 is installed on the housing of the sight as shown in Figure 12, so that the steel ball 34 is pressed against the bottom surface 33. When the slider 4 moves, the clicking sound caused by friction helps the operator to roughly know the focal length adjustment distance, thereby improving the comfort and convenience of use. At the same time, this structure is reliably positioned, and the inertia of impact vibration will not cause the focusing structure to shift when the firearm is fired, thereby avoiding changes in the output light spot angle.

[0055] In order to make the interaction between the shift block 6 and the slider 4 more stable, a hollow shift rod 16 is provided on the bottom surface of the shift block 6 in this embodiment. The lower end of the hollow shift rod 16 can be inserted into the first screw hole 5. The screw rod of the first screw 7 is placed in the hollow shift rod 16 and extends downward to connect with the first screw hole 5. In this way, the intersection and overlapping area between the shift block 6 and the slider 4 is enhanced by the hollow shift rod 16 inserted into the first screw hole 5. When installed in the housing of the sight, the hollow shift rod 16 is pressed tightly into the first screw hole 5 by the fastener, ensuring the stability of the connection between the two.

[0056] Based on the aforementioned lens position adjustment mechanism, this embodiment provides a laser core as shown in Figures 6, 7, 8 and 9 (equivalent to a three-in-one light source fixing member integrating three laser modules in the prior art, the prior art here refers to the light source fixing member in the invention patent No. 201320495338.X or the three-in-one laser module in the invention patent No. 201820873768.3). As can be seen from Figure 7 or Figure 9, the laser core includes an inner core shell 19, and a lens mounting cavity 20 extending along the length direction is opened on one side of the inner core shell 19 (similar to Similar to the mounting cavity for the first laser module in the invention patent No. 201320495338.X, the front end of the lens mounting cavity 20 is sequentially mounted, from the inside out, with a photodiode 22 positioned at the top of a fixed seat 21 and a second lens 24 fixed to a second lens mounting seat 23 (see Figure 9 for the positional relationship). The unique feature of this laser core is that its focusing mechanism is the lens position adjustment mechanism shown in the aforementioned embodiment, Figure 1; that is, the lens position adjustment mechanism is installed within the lens mounting cavity 20 and positioned to the rear of the fixed seat 21 (the rear position is on the viewer's right hand side). Specifically, the first lens mounting seat 1 of the lens position adjustment mechanism is installed within the lens mounting cavity 20 and positioned to the rear of the fixed seat 21. At the same time, the rear end of the first lens mounting seat 1 is located at the rear end of the lens mounting cavity 20, facilitating the connection of the pull rod 3 and ensuring a large axial adjustment range for the focusing distance. The slider 4 of the lens position adjustment mechanism is arranged parallel to the outside of the core shell 19 (see Figure 14).

[0057] In this embodiment, a laser tube LD27 is also added. As shown in FIG7 , a radially extending slide groove 25 is provided on the side wall of the first lens mounting seat 1. The slide groove 25 is positioned between the front and rear ends of the first lens mounting seat 1. A laser tube holder 26 is provided at the rear end of the slide groove 25, and the laser tube LD27 is mounted at the front end of the laser tube holder 26 so that the emitted light from the laser tube LD is directed forward toward the first lens 2. To ensure the fixed position of the laser tube LD, in this embodiment, two opposing third screws 28 are inserted from the outside through the stepped holes in the inner core housing 19 and are fixedly connected to the screw holes in the laser tube holder 26. That is, the top and bottom surfaces of the laser tube holder 26 are located at the upper and lower openings of the slide groove 25, respectively. In actual application, the top and bottom surfaces of the laser tube holder 26 can extend to the outside of the upper and lower openings of the slide groove 25, respectively.

[0058] In this embodiment, the first lens 2 is a beam expander lens, and the second lens 24 is a convex lens. At the same time, it should be noted that the photodiode 22 is used to feed back the energy received from the laser tube LD27 to the main control board 41 (see Figure 10) when the first lens 2 is adjusted forward and backward, so that the energy per unit area of ​​the light beam passing through the second lens 24 is consistent.

[0059] Based on the aforementioned laser core, the present embodiment provides a laser sight as shown in Figures 10, 11, 12, 13, 14 and 15, including a sight housing 29, wherein the laser core 30 provided in the aforementioned embodiment is disposed on one side of the sight housing 29, and a battery compartment 38 is disposed on the other side; a strip-shaped through hole 31 as shown in Figure 12 is provided on the top surface of the sight housing 29, and a shift block 6 is placed outside the strip-shaped through hole 31 as shown in Figure 15, that is, outside the top surface of the sight housing 29, and a first screw 7 passes through the shift block 6 and is connected to the first screw hole 5 disposed inside the strip-shaped through hole 31 as shown in Figure 13, thereby completing the connection between the shift block 6 and the slider 4 (the slider 4 is disposed inside the sight housing 29 and between the laser core 30 and the battery compartment 38); the length of the shift block 6 is greater than the length of the strip-shaped through hole 31, so that when the shift block 6 drives the slider 4 to move along the length direction of the strip-shaped through hole 31, the shift block 6 is always located outside the strip-shaped through hole 31.

[0060] The lower end of the hollow lever 16 on the bottom surface of the shift block 6 is inserted into the first screw hole 5. At the same time, the screw rod of the first screw 7 is placed in the hollow lever 16 and extends downward to connect with the first screw hole 5, thereby enhancing the reliability of the connection between the shift block 6 and the slider 4.

[0061] The rear end of the slider 4 extends toward one side of the pull rod 3 to form a bent portion 8, which is connected to the second screw hole 9 provided at the rear end of the pull rod 3 through a second screw 10. As can be seen from Figure 13, the bent portion 8 bends and extends toward the direction of the laser core.

[0062] As can be seen from Figure 10, the laser sight provided in this embodiment also includes a button switch 43, a toggle switch 44, an indicator light 45, a battery cover assembly 46 and a lens assembly 47, as well as the drive board 40, the main control board 41, the rear cover assembly 42 and the laser inner core pressure ring 48 shown in Figure 14. These are all conventional technologies and will not be repeated here.

[0063] As can be seen from Figures 16, 17 and 18, in order to meet the focusing requirements while ensuring the stability of the output light illumination, a potentiometer-type displacement sensor 53 is provided in the sight housing 29 in this embodiment. The potentiometer-type displacement sensor 53 is electrically connected to the main control board 41 shown in Figure 19, and the brush push rod 54 of the potentiometer-type displacement sensor 53 is inserted into the limiting notch 55 provided at the rear end of the bottom surface of the slider 4 shown in Figure 16, so as to follow the movement when the slider 4 moves back and forth, and transmit the displacement signal of the slider 4 to the main control board 41. The main control board 41 adjusts the operating current of the laser tube LD27 according to the displacement signal, so that the illumination of the output light of the laser tube LD27 is stable, that is, it does not change with the change of its position, thereby achieving the stability of the laser light illumination output by the laser module optical system.

Claims

1. A lens position adjustment mechanism, comprising a first lens mounting seat (1), and a first lens (2) mounted at the front end of the first lens mounting seat (1), characterized in that: It also comprises a pull rod (3), the front end of which is fixedly connected to the rear end of the lens mounting seat (1), and the rear end of which is connected to a slider (4); the slider (4) is arranged parallel to the first lens mounting seat (1) and extends forward along the axial direction of the first lens mounting seat (1); A first screw hole (5) is provided on the front end top surface of the sliding block (4), and a shifting block (6) disposed above the first screw hole (5) is connected to the first screw hole (5) via a first screw (7) penetrating the thickness direction of the shifting block (6).

2. The lens position adjustment mechanism according to claim 1, characterized in that: The rear end of the slider (4) extends toward one side of the pull rod (3) to form a bent portion (8); the rear end of the pull rod (3) is provided with a second screw hole (9); The second screw (10) passes through the stepped hole (11) on the bent portion (8) from the rear to the front and is connected to the second screw hole (9).

3. The lens position adjustment mechanism according to claim 2, characterized in that: The rear end surface of the pull rod (3) is a concave spherical surface (12); The step surface of the step hole (11) is arranged on the front end surface of the bending portion (8), the rear end surface of the bending portion (8) is a second concave spherical surface (50), and the rear end surface coincides with the rear end surface of the step hole (11); An elastic gasket (18) and a first spherical gasket (51) are arranged in sequence from the inside to the outside on the step surface of the step hole (11), and the spherical surface of the first spherical gasket (51) matches with the first concave spherical surface (12); a second spherical gasket (52) is arranged in the second concave spherical surface (50), and the second spherical gasket (52) matches 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 both convex spherical surfaces.

4. The lens position adjustment mechanism according to claim 1, characterized in that: The front outer side surface of the pull rod (3) is a spherical surface, which is placed in the spherical cavity at the rear end of the first lens mounting seat (1); the retaining ring (13) is sleeved on the spherical surface, and the retaining ring (13) is threadedly connected to the threaded surface at the rear side of the spherical cavity; the front side of the inner surface of the retaining ring (13) is an arcuate surface with a radius greater than the spherical diameter of the spherical surface, and the rear side of the inner surface of the retaining ring (13) is an inner convex ring (14) with a radius smaller than the spherical diameter of the spherical surface.

5. The lens position adjustment mechanism according to claim 1, characterized in that: The bottom surface of the sliding block (4) is a corrugated surface.

6. The lens position adjustment mechanism according to claim 1, characterized in that: A hollow lever (16) is provided on the bottom surface of the shift block (6), the lower end of the hollow lever (16) can be inserted into the first screw hole (5), and the screw rod of the first screw (7) is placed in the hollow lever (16) and extends downward to be connected with the first screw hole (5).

7. A laser inner core, comprising an inner core shell (19), a lens mounting cavity (20) extending in the length direction is provided on one side of the inner core shell (19), a photodiode (22) placed on the top of a fixing seat (21) and a second lens (24) fixed on a second lens mounting seat (23) are sequentially installed at the front end of the lens mounting cavity (20) from the inside to the outside; characterized in that: Also includes the lens position adjustment mechanism of claim 1; The first lens mounting seat (1) is mounted in the lens mounting cavity (20), and the first lens mounting seat (1) is placed on the rear side of the fixing seat (21); The rear end of the first lens mounting seat (1) is located at the rear end of the lens mounting cavity (20); The slider (4) is arranged in parallel on the outer side of the inner core shell (19); A radially penetrating slide groove (25) is provided on the side wall of the first lens mounting seat (1), and the slide groove (25) is disposed between the front end and the rear end of the first lens mounting seat (1); A laser tube holder (26) is arranged at the rear end of the slide groove (25), and a laser tube LD (27) is installed at the front end of the laser tube holder (26); Two opposite third screws (28) pass through the stepped holes on the inner core shell (19) from the outside and are fixedly connected to the screw holes on the laser tube seat (26) respectively.

8. A laser sight, comprising a sight housing (29), characterized in that: The sight housing (29) is provided with the laser core (30) according to claim 7; A strip-shaped through hole (31) is provided on the top surface of the sight housing (29); the shift block (6) is placed outside the strip-shaped through hole (31); and the first screw (7) passes through the shift block (6) and is connected to a first screw hole (5) placed inside the strip-shaped through hole (31); The length of the shifting block (6) is greater than the length 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 located outside the strip-shaped through hole (31).

9. The laser sight according to claim 8, characterized in that: A hollow shift rod (16) is provided on the bottom surface of the shift block (6), the lower end of the hollow shift rod (16) is inserted into the first screw hole (5), and the screw rod of the first screw (7) is placed in the hollow shift rod (16) and extends downward to be connected 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 toward one side of the pull rod (3) to form a bent portion (8); a second screw hole (9) is provided at the rear end of the pull rod (3); a second screw (10) passes through a through hole (11) on the bent portion (8) and is connected to the second screw hole (9).

11. The laser sight according to claim 8, 9 or 10, characterized in that: It also includes a potentiometer displacement sensor (53) disposed in the sight housing (29), wherein the potentiometer displacement sensor (53) is electrically connected to the main control board (41); The brush push rod (54) of the potentiometer displacement sensor (53) is inserted into a limiting notch (55) provided at the rear end of the bottom surface of the slider (4) and moves along with the slider (4) when it moves forward and backward, so as to transmit the displacement signal of the slider (4) to the slider (4). The displacement signal is transmitted to the main control board (41), and the main control board (41) adjusts the working current of the laser tube LD (27) according to the displacement signal, so that the illumination of the output light of the laser tube LD (27) is stable, thereby achieving the stability of the illumination of the laser light output by the laser module optical system.

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