Optical axis adjusting device and adjustable range finder

Abstract

The utility model discloses an optical axis adjusting device and an adjustable range finder, and relates to the field of instrument measurement, the optical axis adjusting device comprises a support, a spherical hinge support, a support block and an adjusting assembly, the spherical hinge support is matched with a first quadrant, and the support can make spherical hinge rotation; the supporting block is matched with the second quadrant of the bracket to form a gap between the second quadrant of the bracket and the shell; when pitching adjustment is conducted through the up-down adjuster, the support is adjusted in a swinging mode with the connecting line of the supporting block and the spherical hinge support as a rotating shaft. When the left-right adjuster rotates left and right for adjustment, the support swings transversely with the spherical hinge support as the center. A first elastic component in a second quadrant enables the supporting block to always contact with the bracket and the shell; the second elastic assembly in the third quadrant applies vertical elastic force and transverse elastic force to the support; a third elastic assembly of the fourth quadrant applies vertical elastic force to the fourth quadrant of the support, so that the support is returned when the up-down regulator and the left-right regulator return; a spherical hinge structure does not need to be arranged outside the support, and space occupation of the optical axis adjusting structure is reduced.

Description

Technical Field

[0001] The utility model relates to the field of instrument measurement, in particular to an optical axis adjustment device and an adjustable rangefinder. Background Art

[0002] The rangefinder can be used alone or installed on a firearm. When used with a firearm, the user needs to clearly know the specific target being measured by the rangefinder. It is easy to cause confusion when there are multiple targets closely arranged in front. Therefore, the rangefinder is often used in conjunction with a scope. By observing the reticle in the scope window, the target being measured by the rangefinder can be clearly seen. However, due to the assembly errors and installation gaps between the rangefinder and the scope, the ranging optical axis of the rangefinder and the differentiation optical axis of the scope need to be adjusted to a parallel state before use. After the adjustment is completed, the measurement target of the rangefinder can be determined through the scope.

[0003] The commonly used adjustment scheme is to adjust the optical axis of the rangefinder based on the sight, measure the distance between the light output position of the rangefinder and the optical axis of the sight during installation, and adjust the optical axis of the rangefinder to a position at the same distance from the aiming point of the sight at a certain distance. The optical axes of the two can be considered parallel, and the optical axis of the rangefinder has been coaxial with the included visible laser. The measurement position of the rangefinder can be confirmed by the visible laser.

[0004] The principle of adjusting the optical axis of the rangefinder is that, inside the rangefinder, the front end surface of the ranging component uses a fixed point as a fulcrum. When adjusting, by moving the tail of the ranging component up, down, left, and right, the optical axis of the ranging component can be swung up, down, left, and right around the fixed point center, and it can be parallel to the optical axis of the sight within the swing range. The traditional structure uses a ball joint structure, that is, the front end of the ranging component is processed into a ball joint. The size of the ball head needs to wrap the entire ranging component. After the ball joint is fixed by other structures, it can only swing along the center of the ball to achieve the purpose of adjustment. The ball joint structure is often used in products with a columnar appearance such as sights. For non-columnar products such as rangefinders, the use of a ball joint structure will greatly increase the product's external dimensions, which is not conducive to structural design and causes a large waste of space.

[0005] For those skilled in the art, how to reduce the space occupied by the optical axis adjustment structure is a technical problem that needs to be solved at present. Utility Model Content

[0006] The core of this utility model is to provide an optical axis adjustment device. The bracket is assembled through a ball joint support. The adjustment component cooperates with three elastic components to make the bracket pitch and swing left and right. The ball joint support is assembled inside the support to reduce the space occupied by the optical axis adjustment structure. The specific scheme is as follows:

[0007] An optical axis adjustment device, comprising:

[0008] A bracket for providing support; the bracket is divided into a first quadrant, a second quadrant, a third quadrant, and a fourth quadrant in a clockwise or counterclockwise direction;

[0009] a spherical hinge support, cooperating with the first quadrant of the bracket; the spherical hinge support is disposed between the bracket and the housing and is used to form a rotation fulcrum between the bracket and the housing; a support block, cooperating with the second quadrant of the bracket and being used to form a gap between the second quadrant of the bracket and the housing;

[0010] An adjustment assembly, cooperating with the fourth quadrant of the bracket; comprising an up-down adjuster and a left-right adjuster respectively assembled on the housing, the up-down adjuster being used to adjust the pitch angle of the bracket, and the left-right adjuster being used to adjust the left-right swing angle of the bracket;

[0011] a first elastic component, disposed in the second quadrant of the bracket, for ensuring that the support block is always in contact with the bracket and the housing;

[0012] a second elastic component, disposed in the third quadrant of the bracket, for applying vertical elastic force and lateral elastic force to the third quadrant of the bracket;

[0013] The third elastic component is arranged in the fourth quadrant of the bracket and is used to apply a vertical elastic force to the fourth quadrant of the bracket.

[0014] Optionally, the ball hinge support includes a ball stud and a pressure ring, the ball stud is fixed to the shell, and the pressure ring is used to hinge the ball stud into the bracket.

[0015] Optionally, a slot for accommodating the ball stud is provided at the lower portion of the first quadrant of the bracket, and the pressing ring is threadedly assembled on the bracket and press-fitted with the ball stud;

[0016] The ball stud is equipped with a compression spring, which applies elastic pressure to the ball stud so that the spherical portion provided at the lower part of the ball stud forms a ball hinge fit with the pressure ring.

[0017] Optionally, the compression spring is a tower spring that can be compressed into a planar helical line.

[0018] Optionally, the first elastic component includes a pressing plate and a tension spring, the pressing plate is fixed to the housing, and two ends of the tension spring are hooked on the pressing plate and the bracket respectively.

[0019] Optionally, the support block is fixed on the housing, and the portion of the support block that contacts the bracket is a spherical surface.

[0020] Optionally, the second elastic component is installed on the bracket at an angle to form a vertical component force and a horizontal component force on the bracket.

[0021] Optionally, the third elastic component is a coil spring, which is assembled in a slot provided at the lower portion of the fourth quadrant of the bracket, and the lower end of the coil spring is used to contact the housing.

[0022] Optionally, the bracket includes a detachable mounting support body, and the lower portion of the support body is fixed by screws;

[0023] The upper and lower adjusters are used to press the upper surface of the support body, and the left and right adjusters are used to press the side surfaces of the support body.

[0024] The utility model also provides an adjustable rangefinder, comprising the optical axis adjustment device described in any one of the above items, and further comprising a visible laser module and a distance measurement module installed on the bracket.

[0025] Optionally, the bracket is configured to cooperate with an adjustment screw and an adjustment spring for adjusting the inclination angle of the visible laser module.

[0026] The utility model provides an optical axis adjustment device, in which the bracket is divided into a first quadrant, a second quadrant, a third quadrant, and a fourth quadrant, and the ball joint support cooperates with the first quadrant to enable the support to rotate like a ball joint; the support block cooperates with the second quadrant of the bracket to form a gap between the second quadrant of the bracket and the outer shell; when the pitch is adjusted by the up and down adjusters, the bracket is swung and adjusted with the line connecting the support block and the ball joint support as the rotation axis; when the left and right adjusters are rotated and adjusted left and right, the bracket is swung laterally with the ball joint support as the center; the first elastic component of the second quadrant enables the support block to always contact the bracket and the outer shell; the second elastic component of the third quadrant applies vertical elastic force and lateral elastic force to the bracket; the third elastic component of the fourth quadrant applies vertical elastic force to the fourth quadrant of the bracket, so that the support is returned to its original position when the up and down adjusters and the left and right adjusters return to their original position; the ball joint support of the utility model is assembled inside the support, and there is no need to set a ball joint structure outside the bracket, which can effectively reduce the space occupied by the optical axis adjustment structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0028] Figure 1 This is an exploded view of the local structure of the optical axis adjustment device of the utility model in conjunction with the visible laser module and the distance measurement module;

[0029] Figure 2 This is a schematic diagram of the oblique front side of the visible laser module and the ranging module of the utility model being assembled on the bracket;

[0030] Figure 3 This is a schematic diagram of the oblique rear side of the visible laser module and the ranging module of the utility model being assembled on the bracket;

[0031] Figure 4 is a cross-sectional schematic diagram of the spherical joint support;

[0032] Figure 5 Schematic diagram of the cooperation between the pressure plate and the tension spring;

[0033] Figure 6 Schematic diagram of the support block and screw.

[0034] The diagram includes:

[0035] Bracket 1, support body 11, ball joint support 2, ball stud 21, pressure ring 22, compression spring 23, support block 3, adjustment component 4, up and down adjuster 41, left and right adjuster 42, first elastic component 5, pressure plate 51, tension spring 52, second elastic component 6, third elastic component 7, visible laser module 8, adjustment screw 81, adjustment spring 82, ranging module 9. DETAILED DESCRIPTION

[0036] In order to enable those skilled in the art to better understand the technical solution of the present invention, the optical axis adjustment device and the adjustable rangefinder of the present invention will be described in detail below with reference to the accompanying drawings and specific implementation methods.

[0037] The utility model provides an optical axis adjustment device, which includes a housing, a bracket 1, a ball joint support 2, a support block 3, an adjustment component 4, a first elastic component 5, a second elastic component 6, and a third elastic component 7. The bracket 1 is used to provide support. When used in an adjustable rangefinder, a visible laser module 8, a distance measurement module 9, and other structures are mounted on the bracket 1. The movement of the bracket 1 drives the movement of the laser module 8 and the distance measurement module 9 mounted thereon, thereby achieving optical axis adjustment.

[0038] The bracket 1 is divided into the first quadrant, the second quadrant, the third quadrant and the fourth quadrant along the clockwise or counterclockwise rotation direction; Figure 1 The figure shows that bracket 1 is divided into four quadrants in a counterclockwise direction. The first, second, third, and fourth quadrants are represented as ①②③④, respectively. Each quadrant represents an area of ​​bracket 1. When the main structure of bracket 1 adopts a rectangular shape, the four corners are respectively assigned to different quadrants. Bracket 1 is installed within the housing and can pitch, swing, and swing horizontally relative to the housing.

[0039] The ball joint support 2 cooperates with the first quadrant of the bracket 1, that is, the ball joint support 2 is assembled in the first quadrant of the bracket 1, and the installation position of the ball joint support 2 is close to a top corner of the bracket 1. The ball joint support 2 is provided between the bracket 1 and the outer shell, and a rotation fulcrum is formed between the bracket 1 and the outer shell through the ball joint support 2. When the bracket 1 moves, the bracket 1 rotates with the center point of the ball joint as the center of the ball, and the adjustment component 4 drives the bracket 1 to perform pitch, up and down rotation and left and right swing. It should be noted that when the bracket 1 is installed on the bottom plate of the outer shell through the ball joint support 2, there is a space between the lower surface of the first quadrant of the bracket 1 and the bottom plate of the outer shell, which meets the space requirements for the swing of the bracket 1.

[0040] The support block 3 cooperates with the second quadrant of the bracket 1, and the support block 3 is used to form a gap between the second quadrant of the bracket 1 and the shell; Figure 3 As shown, support block 3 is positioned below base 1, with its upper portion contacting bracket 1 and its lower portion contacting the bottom plate of the housing. Support block 3 creates a gap between the lower surface of bracket 1's second quadrant and the housing's bottom plate, preventing the lower surface of bracket 1 from directly contacting the housing's bottom plate and allowing for pitch movement of base 1.

[0041] Adjustment assembly 4 cooperates with the fourth quadrant of bracket 1 and is used to apply force to the fourth quadrant of bracket 1. Adjustment assembly 4 includes an upper and lower adjuster 41 and a left and right adjuster 42, each mounted on a housing. Each of upper and lower adjusters 41 and left and right adjusters 42 applies force to the fourth quadrant of bracket 1. Specifically, upper and lower adjusters 41 and left and right adjusters 42 each include a fixed shell and a movable inner core. The fixed shell is fixed to the housing, and the movable inner core can move relative to the fixed shell, allowing the movable inner core to move closer to or further away from bracket 1, thereby pressing or releasing pressure on bracket 1.

[0042] The vertical adjuster 41 applies a vertical force to the bracket 1, thereby adjusting the pitch angle of the bracket 1. The horizontal adjuster 42 applies a lateral force to the bracket 1, thereby adjusting the left and right swing angles of the bracket 1. The direction of force applied by the vertical adjuster 41 and the left and right adjuster 42 on the bracket 1 is not directly toward the center of the ball joint, which can generate a swinging torque on the bracket 1.

[0043] The first elastic component 5 is arranged in the second quadrant of the bracket 1. The first elastic component 5 applies elastic force to the second quadrant of the bracket 1, so that the second quadrant of the bracket 1 has a tendency to approach the bottom plate of the bracket 1. Under the action of the first elastic component 5, the support block 3 is always in contact with the bracket 1 and the shell, that is, Figure 3 A downward elastic force is applied to the second quadrant of the bracket 1 in the direction, and the bracket 1 is always supported by the support block 3 to prevent the second quadrant of the bracket 1 from being lifted upward uncontrollably.

[0044] The second elastic component 6 is arranged in the third quadrant of the bracket 1. The second elastic component 6 can apply component forces in two directions to the bracket 1, which is used to apply vertical elastic force and lateral elastic force to the third quadrant of the bracket 1; the elastic force generated by the second elastic component 6 on the bracket 1 can make the bracket 1 always contact the upper and lower adjusters 41 and the left and right adjusters 42. When the upper and lower adjusters 41 and the left and right adjusters 42 retract, the elastic force of the second elastic component 6 is used to push the bracket 1 back to its reverse position.

[0045] The third elastic component 7 is arranged in the fourth quadrant of the bracket 1, and is used to apply vertical elastic force to the fourth quadrant of the bracket 1. Figure 3 As shown, the third elastic component 7 generates an upward elastic force on the bracket 1, so that the bracket 1 is always in contact with the upper and lower adjusters 41. When the upper and lower adjusters 41 retract, the elastic force of the third elastic component 7 pushes the bracket 1 back to its reverse position.

[0046] Combine Figure 3 As shown, in this embodiment, the ball joint support 2 is arranged in the first quadrant on the right front side of the bracket 1, the support block 3 and the first elastic component 5 are arranged in the second quadrant on the left front side of the bracket 1, the second elastic component 6 is arranged in the third quadrant on the left rear side of the bracket 1, and the adjustment component 4 and the third elastic component 7 are arranged in the fourth quadrant on the right rear side of the bracket 1. The ball joint support 2 and the adjustment component 4 for providing thrust are respectively located near the two vertex corners of the right side; the second elastic component 6 is arranged diagonally with the ball joint support 2.

[0047] Combine Figure 3 As shown, there are two situations during adjustment: the up and down adjuster 41 makes the bracket 1 pitch up and down, and the left and right adjuster 42 makes the bracket 1 swing left and right; when the bracket 1 swings up and down, it swings around the horizontal axis A, and when the bracket 1 swings left and right, it swings around the vertical axis B; the axis A is the connecting line between the ball joint support 2 and the support block 3, and the axis B is the vertical line passing through the ball joint support 2.

[0048] Specifically, combined Figure 3 As shown, the pitching movement includes two processes: 1) When the up / down adjuster 41 extends downward and approaches the bracket 1 to apply an active thrust, the second elastic component 6 and the third elastic component 7 are compressed, and the bracket 1 swings downward around the rotation axis A; 2) When the up / down adjuster 41 retracts upward away from the bracket 1, the elastic force of the second elastic component 6 and the third elastic component 7 causes the bracket 1 to return to its original position, and the bracket 1 swings upward around the rotation axis A, with the bracket 1 always in contact with the up / down adjuster 41. The left / right swinging movement includes two processes: 3) When the left / right adjuster 42 extends leftward and approaches the bracket 1 to apply an active thrust, the second elastic component 6 is compressed, and the bracket 1 swings leftward around the rotation axis B; 4) When the left / right adjuster 42 retracts rightward away from the bracket 1, the elastic force of the second elastic component 6 causes the bracket 1 to return to its original position, and the bracket 1 swings rightward around the rotation axis B, with the bracket 1 always in contact with the left / right adjuster 42.

[0049] It can be seen from this that the ball joint support 2 of the present invention is assembled inside the support, and the ball joint structure is located inside the bracket 1. There is no need to set a ball joint structure outside the bracket 1, which can effectively reduce the space occupied by the optical axis adjustment structure; the optical axis adjustment device of the present invention cooperates with the ball joint support 2 and the support block 3 to form the rotating shafts A and B to achieve swing adjustment, so that the visible laser module 8, ranging module 9 and other equipment installed on the bracket 1 can be swung and adjusted; the adjustment component 4 cooperates with the three elastic components (the first elastic component 5, the second elastic component 6, and the third elastic component 7), and the adjustment component 4 cooperates with the three elastic components to form constraints on different positions of the bracket 1, and the overall stability is higher. The upper and lower adjusters 41 and the left and right adjusters 42 can swing when actively pushing the bracket 1, and can also swing when retracting, so that the two swings can be precisely controlled.

[0050] The ball joint support 2 includes a ball stud 21 and a pressure ring 22. The bottom end of the ball stud 21 is fixed to the outer shell (the outer shell is not shown in the figure), and the pressure ring 22 is assembled and fixed to the bracket 1. The pressure ring 22 is used to hinge the upper end of the ball stud 21 inside the bracket 1; the upper part of the ball stud 21 is provided with a radial expansion structure, which is provided with a part of the spherical outer surface, and the pressure ring 22 is a hollow ring set through the middle. The pressure ring 22 is provided with a part of the spherical inner surface, which can form spherical contact with the enlarged spherical surface on the upper part of the ball stud 21.

[0051] On the basis of the above scheme, combined with Figure 3 As shown, the utility model provides a slot for accommodating the ball stud 21 at the lower part of the first quadrant of the bracket 1. The slot is a blind hole with an opening facing downward. An internal thread is provided on the side wall of the slot, and an external thread is provided on the outer wall of the pressure ring 22. The pressure ring 22 is threadedly assembled on the bracket 1 and press-fits the ball stud 21.

[0052] The ball joint support 2 also includes a compression spring 23, which is arranged in conjunction with the ball stud 21. Figure 4 As shown, the upper part of the ball stud 21 is a non-spherical structure, and the upper end surface of the ball stud 21 can be set to a plane, a cone, etc., and a slot for clamping the compression spring 23 is provided at the upper end; the upper end of the compression spring 23 contacts the outer shell, and the lower end contacts the ball stud 21. The compression spring 23 applies elastic pressure to the ball stud 21, and the ball stud 21 is pressed down by the compression spring 23; the inner wall of the pressure ring 22 is provided with a spherical portion, and when the ball stud 21 is pressed down, the spherical portion provided at the lower part of the ball stud 21 forms a ball hinge fit with the pressure ring 22.

[0053] In the ball joint structure adopted by the present invention, the ball stud 21 is only provided with a lower spherical surface, and there is no physical structure on the upper part. The ball stud 21 and the pressure ring 22 are matched to form a ball joint through the elastic force of the compression spring 23. When the assembly is completed, the compression spring 23 is squeezed by the ball stud 21 and the outer shell, so that the axial length of the compression spring 23 is smaller than the radius of the sphere. Compared with adopting a complete spherical structure, it can reduce space occupancy and help to reduce the vertical height space.

[0054] Combine Figure 4 As shown, the compression spring 23 in the present invention is a tower spring that can be compressed into a flat helical line. The radial dimension of the tower spring changes along the axial direction. Therefore, when the tower spring is fully compressed, it can form a flat helical line. The tower spring itself does not overlap in the axial direction, which can reduce the axial space occupied by the tower spring. Generally, the lower end of the tower spring has a smaller radial dimension, and the upper end has a larger radial dimension.

[0055] Combine Figure 1 As shown, the first elastic component 5 of the present invention includes a pressing plate 51 and a tension spring 52. The pressing plate 51 is fixed to the housing, and the two ends of the tension spring 52 are hooked on the pressing plate 51 and the bracket 1 respectively. Figure 5 , showing a schematic diagram of one end of the tension spring 52 hooked on the pressure plate 51. The pressure plate 51 is provided with an annular structure for screws to pass through, thereby fixing the pressure plate 51 to the bottom plate of the shell; a cantilever structure is provided on the outside of the annular structure, and two U-shaped notches are provided on the two side edges of the cantilever structure relative to each other, and the hook of the tension spring 52 can be hung at the position of this notch. The other end of the tension spring 52 is hung on the opening provided in the bracket 1. The tension spring 52 always generates tension, so that the bracket 1 and the support block 3 always maintain contact. Correspondingly, the pressure plate 51 can also be fixed to the bracket 1, and the two ends of the tension spring 52 are respectively hung on the pressure plate 51 and the shell, which can also achieve the same effect. The use of a tension spring structure for the first elastic component 5 is a specific solution. A compression spring structure can also be provided between the upper surface of the second quadrant of the bracket 1 and the top plate of the shell, which can also keep the bracket 1 and the support block 3 always in contact. This structure also falls within the scope covered by the present utility model.

[0056] In one embodiment of the present invention, the lower end of support block 3 is fixed to the bottom plate of the housing, and the portion of the upper end of support block 3 that contacts bracket 1 is spherical. This prevents jamming when bracket 1 swings relative to support block 3, and the spherical surface of the upper end of support block 3 allows bracket 1 to swing up and down, as well as left and right. Alternatively, support block 3 may have an upper end fixed to bracket 1 and a lower end with a spherical surface in contact with the bottom plate of the housing. These configurations are all within the scope of protection of the present invention.

[0057] The second elastic component 6 is installed obliquely on the bracket 1 to form vertical and horizontal components of force on the bracket 1. Figure 3As shown, a sloped surface is provided on the edge of the third quadrant of the bracket 1, and the second elastic component 6 is mounted on this sloped surface, thereby generating an inclined force on the bracket 1. This inclined elastic force comprises two components, vertical and horizontal, which can cause the bracket 1 to rebound upward and to the right. In addition to using a single inclined spring, the second elastic component 6 can also be in the form of two springs, one vertically arranged and the other horizontally arranged, each spring providing elastic force in a respective direction.

[0058] The third elastic component 7 is a coil spring. The third elastic component 7 is assembled in the slot provided at the lower portion of the fourth quadrant of the bracket 1. The lower end of the third elastic component 7 is used to contact the bottom plate of the housing. Figure 3 As shown, the upper end of the third elastic component 7 extends into the slot of the bracket 1, and the lower end extends outside the bracket 1. After assembly, the third elastic component 7 is compressed, causing the bracket 1 to tend to rotate upward about the rotation axis A. The upward elastic force of the third elastic component 7 can resist the thrust applied to the bracket 1 by the upper and lower adjusters 41, so that the two forces are arranged collinearly.

[0059] Combine Figure 1 、 Figure 3 As shown, the bracket 1 includes a detachable mounting support 11, as shown in FIG. Figure 6 As shown, the lower portion of the support body 11 is fixed to the main structure of the bracket 1 by screws; a sink for positioning the support body 11 is provided at the top corner of the fourth quadrant of the main structure of the bracket 1, and a through hole is provided at the sink. A threaded hole is provided at the lower end of the support body 11, and the screw passes through the through hole to be threadedly connected and fixed to the support body 11. The support body 11 has a relatively high height and cooperates with the upper and lower adjusters 41 and the left and right adjusters 42 to transmit the force. The upper and lower adjusters 41 press against the upper surface of the support body 11 to apply thrust, and the left and right adjusters 42 press against the side surface of the support body 11 to apply thrust. The support body 11 is detachable and can be removed before installing structures such as the visible laser module 8 and the ranging module 9 to avoid interference with assembly. The support body 11 is fixed after assembly is completed.

[0060] The upper and lower regulators 41 and the left and right regulators 42 are mounted on the housing. The upper and lower regulators 41 and the left and right regulators 42 are respectively provided with adjusting screws. When the respective adjusting screws are rotated, the regulators 41 and 42 can be displaced axially to achieve pushing or retraction.

[0061] The utility model also provides an adjustable rangefinder, including the above optical axis adjustment device, which can achieve the same effect. Figure 1 、 Figure 2 、 Figure 3 The adjustable rangefinder also includes a visible laser module 8 and a ranging module 9 mounted on the bracket 1. The visible laser module 8 is green + infrared dual-color. When assembled on a firearm, it can calibrate the gun and indicate the target. Turning on the laser does not affect the ranging.

[0062] like Figure 1 As shown, bracket 1 is equipped with an adjustment screw 81 and an adjustment spring 82 for adjusting the inclination angle of visible laser module 8. Adjustment spring 82 is located between bracket 1 and visible laser module 8. Adjustment screw 81 is installed on bracket 1 to adjust the angle of visible laser module 8 relative to bracket 1. Once the adjustment is completed, visible laser module 8 is fixed with a set screw and then coated with fixing glue to ensure it is fixed. During use, by adjusting the pitch and left and right swing of bracket 1, visible laser module 8 and ranging module 9 can be adjusted synchronously.

[0063] The optical axis adjustment device and the adjustable rangefinder of the utility model are based on the bracket 1. The ball joint structure, the tension spring, the compression spring and other components can meet the optical axis adjustment function within a certain range without having a great influence on the overall size. The adjustment mechanism has a simple structure, high structural reliability, is easy to install, and can be produced in a modular manner. After being subjected to impact and vibration, the optical axis can maintain stability and has high overall stability. After the optical axis is fixed, it will not be affected by external impact and vibration and move. The structure is compact and the adjustment is convenient, which effectively improves the shooting accuracy.

[0064] The above description of the disclosed embodiments will enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An optical axis adjustment device, characterized in that: include: A bracket (1) is used to provide support; the bracket (1) is divided into a first quadrant, a second quadrant, a third quadrant, and a fourth quadrant in a clockwise or counterclockwise direction; A ball joint support (2) cooperates with the first quadrant of the bracket (1); the ball joint support (2) is arranged between the bracket (1) and the housing, and is used to form a rotation fulcrum between the bracket (1) and the housing; A support block (3) cooperates with the second quadrant of the bracket (1) and is used to form a gap between the second quadrant of the bracket (1) and the housing; an adjustment assembly (4) cooperating with the fourth quadrant of the bracket (1); It comprises an up-down regulator (41) and a left-right regulator (42) respectively mounted on a housing, wherein the up-down regulator (41) is used to adjust the pitch angle of the bracket (1), and the left-right regulator (42) is used to adjust the left-right swing angle of the bracket (1); a first elastic component (5), arranged in the second quadrant of the bracket (1), for ensuring that the support block (3) always contacts the bracket (1) and the housing; a second elastic component (6), arranged in the third quadrant of the bracket (1), for applying vertical elastic force and lateral elastic force to the third quadrant of the bracket (1); A third elastic component (7) is arranged in the fourth quadrant of the bracket (1) and is used to apply a vertical elastic force to the fourth quadrant of the bracket (1).

2. The optical axis adjustment device according to claim 1, wherein: The ball hinge support (2) comprises a ball stud (21) and a pressure ring (22), wherein the ball stud (21) is fixed to the housing, and the pressure ring (22) is used to hinge the ball stud (21) into the bracket (1).

3. The optical axis adjustment device according to claim 2, wherein: The lower portion of the first quadrant of the bracket (1) is provided with a slot for accommodating the ball stud (21); the pressing ring (22) is threadedly assembled on the bracket (1) and press-fitted with the ball stud (21); The ball stud (21) is equipped with a compression spring (23), which applies elastic pressure to the ball stud (21), so that the spherical portion provided at the lower part of the ball stud (21) and the pressure ring (22) form a ball hinge fit.

4. The optical axis adjustment device according to claim 3, wherein: The compression spring (23) is a tower spring that can be compressed into a planar helical line.

5. The optical axis adjustment device according to claim 1, wherein: The first elastic component (5) comprises a pressing plate (51) and a tension spring (52), wherein the pressing plate (51) is fixed to the housing, and the two ends of the tension spring (52) are respectively hooked on the pressing plate (51) and the bracket (1).

6. The optical axis adjustment device according to claim 1, wherein: The support block (3) is fixed on the outer shell, and the portion of the support block (3) that contacts the bracket (1) is a spherical surface.

7. The optical axis adjustment device according to claim 1, wherein: The second elastic component (6) is installed on the bracket (1) at an angle, and is used to generate vertical and horizontal force components on the bracket (1).

8. The optical axis adjustment device according to claim 1, wherein: The third elastic component (7) is a coil spring, which is assembled in a slot provided at the lower portion of the fourth quadrant of the bracket (1), and the lower end of the spring is used to contact the housing.

9. The optical axis adjustment device according to claim 1, wherein: The bracket (1) comprises a detachable mounting support body (11), the lower portion of the support body (11) being fixed by screws; The upper and lower regulators (41) are used to press the upper surface of the support body (11), and the left and right regulators (42) are used to press the side surfaces of the support body (11).

10. An adjustable rangefinder, characterized in that: The optical axis adjustment device comprises the optical axis adjustment device according to any one of claims 1 to 9, and further comprises a visible laser module (8) and a distance measurement module (9) mounted on the bracket (1).

11. The adjustable rangefinder according to claim 10, characterized in that: The bracket (1) is provided with an adjustment screw (81) and an adjustment spring (82) for cooperating with each other to adjust the inclination angle of the visible laser module (8).

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