A lens angle adjustment device for a riflescope

Abstract

The application discloses a lens angle adjusting device for a sighting telescope, which comprises a base, a lens, a pitch adjusting screw rod, a rotation adjusting screw rod, an inclined plate, a mounting seat, a first sliding block and a second sliding block, the lens is arranged on the base, the mounting seat is arranged on the base, the inclined plate is arranged on the mounting seat, the lens is arranged on the inclined plate, the pitch adjusting screw rod is arranged on the base, the pitch adjusting screw rod is rotatably arranged in the first sliding block, the pitch adjusting screw rod can drive the inclined plate to rotate on the mounting seat along a first side edge of the inclined plate, the rotation adjusting screw rod is arranged on the base, the rotation adjusting screw rod is rotatably arranged in the second sliding block, the rotation adjusting screw rod can drive the inclined plate to rotate on the mounting seat along a second side edge of the inclined plate, and the first side edge and the second side edge are arranged perpendicularly. The lens angle adjusting device for the sighting telescope has simple structure, can adjust the posture angle of the lens from two directions of pitch and level, and thus can adjust two posture angles of the lens.

Description

Technical Field

[0001] This invention relates to the field of aiming scopes, and particularly to a lens angle adjustment device for aiming scopes. Background Technology

[0002] Among the many scope structures, most structures use a threaded screw to push the lens or structure in the optical path to a designated position. However, this structure cannot adjust the lens attitude angle. Even if it can, it can only adjust the attitude angle in one direction or requires a bulky and complex structure.

[0003] In the scope's structure, the lens inside the product can only be adjusted for pitch and rotated around the horizontal direction by rotating a screw. Furthermore, the screw can only be placed on the side, not on the top, bottom, front, or back.

[0004] Among the numerous constraints mentioned above, in order to achieve the adjustment of the lens's attitude angle, it is also required that when one attitude angle of the lens is adjusted, the other attitude angle must not change at all. Existing sight mechanisms are unlikely to meet this requirement. Summary of the Invention

[0005] The present invention provides a lens angle adjustment device for a sight to solve at least one of the above-mentioned technical problems.

[0006] According to one aspect of the present invention, a lens angle adjustment device for a sight is provided, comprising a base and a lens, the lens being disposed on the base, and further comprising a pitch adjustment screw, a rotation adjustment screw, a tilt plate, a mounting base, a first slider, and a second slider.

[0007] The mounting base is located on the base, the tilting plate is located on the mounting base, and the lens is located on the tilting plate.

[0008] The pitch adjustment screw is mounted on the base and screwed into the first slider. The rotation adjustment screw is mounted on the base and screwed into the second slider.

[0009] The inclined plate is equipped with a first ball-end screw, a second ball-end screw, and a third ball-end screw arranged in a triangle. A first wedge-shaped inclined surface is provided on the first slider, and a second wedge-shaped inclined surface is provided on the second slider. The first ball-end screw abuts against the first wedge-shaped inclined surface, and the second ball-end screw abuts against the second wedge-shaped inclined surface. The mounting base is provided with a ball socket, and the ball head of the third ball-end screw abuts against the ball socket.

[0010] The pitch adjustment screw can drive the tilt plate to rotate on the mounting base along the first side of the tilt plate, and the rotation adjustment screw can drive the tilt plate to rotate on the mounting base along the second side of the tilt plate. The first side and the second side are arranged perpendicularly.

[0011] The present invention relates to a lens angle adjustment device for a sight. The base is mounted on the sight. When the lens angle needs adjustment, turning the pitch adjustment screw causes the first slider to translate. The first wedge-shaped inclined surface on the first slider drives the first ball-head screw to move. At this time, the second and third ball-head screws are fixed. The first ball-head screw drives the tilting plate to rotate along the first side of the tilting plate on the mounting base. The tilting plate drives the lens to rotate synchronously, thereby adjusting the lens pitch angle. Turning the rotary adjustment screw causes the second slider to translate. The second wedge-shaped inclined surface on the second slider drives the second ball-head screw to move. At this time, the first ball-head screw... The screw and the third ball-head screw are in a fixed state. The second ball-head screw drives the inclined plate to rotate along the second side of the inclined plate on the mounting base. The inclined plate drives the lens to rotate synchronously, thereby realizing the rotation of the lens around the horizontal direction. Since the ball head of the third ball-head screw abuts in the ball socket, the third ball-head screw is equivalent to a fixed point when the inclined plate rotates in the pitch and horizontal directions. The first ball-head screw and the second ball-head screw are pushed by the first wedge-shaped inclined surface on the first slider and the second wedge-shaped inclined surface on the second slider. The lens angle adjustment device of the present invention has a simple structure and can adjust the attitude angle of the lens from both the pitch and horizontal directions, thereby realizing the adjustment of the two attitude angles of the lens.

[0012] Preferably, the line connecting the first ball-end screw and the third ball-end screw is arranged parallel to the second side of the inclined plate, and the line connecting the second ball-end screw and the third ball-end screw is arranged parallel to the first side of the inclined plate.

[0013] Therefore, when the tilt plate is rectangular and horizontally positioned, the first side of the tilt plate is the upper "long side," and the second side is the lower "short side." When the pitch adjustment screw is turned, the first ball screw moves, while the second and third ball screws remain fixed. Since the line connecting the second and third ball screws is parallel to the first side of the tilt plate, the tilt plate rotates along the first side ("long side") when the first ball screw moves, thus adjusting the lens's pitch angle. When the rotation adjustment screw is turned, the second ball screw moves, while the first and third ball screws remain fixed. Since the line connecting the first and third ball screws is parallel to the second side of the tilt plate, the tilt plate rotates along the second side ("short side") when the second ball screw moves, thus rotating the lens around the horizontal direction.

[0014] Preferably, it also includes a first spring and a second spring, and the base is provided with two lugs.

[0015] The pitch adjustment screw is inserted into a lug, and the end of the pitch adjustment screw is screwed into the first slider. One end of the first spring abuts against the lug, and the other end of the first spring abuts against the first slider.

[0016] The rotary adjusting screw is inserted into another lug and the end of the rotary adjusting screw is screwed into the second slider. One end of the second spring abuts against the lug and the other end of the second spring abuts against the second slider.

[0017] Therefore, the first spring can eliminate the fit clearance between the threads of the first slider and the pitch adjustment screw, eliminate the thread clearance at the moment of thread rotation, and ensure that the first slider can move smoothly. The second spring can eliminate the fit clearance between the threads of the second slider and the rotation adjustment screw, eliminate the thread clearance at the moment of thread rotation, and ensure that the second slider can move smoothly.

[0018] Preferably, the device further includes a tension screw, a lock nut, and a third spring. The tension screw passes through the inclined plate and is inserted into the mounting base. The third spring is sleeved on the tension screw, with one end of the third spring abutting against the inclined plate and the other end abutting against the mounting base.

[0019] The lock nut is screwed onto the end of the tension screw to pull the tilt plate toward the mounting base.

[0020] Therefore, under the action of the locking nut and the third spring, the tightening screw pulls the inclined plate towards the mounting base, so that the ball head of the first ball screw is tightly attached to the first wedge-shaped inclined surface, the ball head of the second ball screw is tightly attached to the second wedge-shaped inclined surface, and the ball head of the third ball screw is tightly attached to the ball socket, ensuring that while the attitude angle of the lens is adjusted in one direction, the attitude angle of the other will not change and will not affect the position of the other attitude angle.

[0021] Preferably, a recessed first receiving groove is provided on one side of the mounting base, and a first elongated oval through hole communicating with the first receiving groove is provided on the end face of the mounting base facing the inclined plate. The first slider is received in the first receiving groove, and the ball head of the first ball screw is received in the first elongated oval through hole.

[0022] The other side of the mounting base is provided with a recessed second receiving groove. The end face of the mounting base facing the inclined plate is provided with a second elongated oval through hole that communicates with the second receiving groove. The second slider is received in the second receiving groove, and the ball head of the second ball screw is received in the second elongated oval through hole.

[0023] Therefore, the first receiving groove can provide installation space for the first slider to ensure stable movement of the first slider, the first elongated through hole can provide space for movement of the first ball screw, the second receiving groove can provide installation space for the second slider to ensure stable movement of the second slider, and the second elongated through hole can provide space for movement of the second ball screw.

[0024] Preferably, the first oblong through-hole is arranged longitudinally, and the second oblong through-hole is arranged transversely.

[0025] Therefore, when the first wedge-shaped inclined surface pushes the first ball screw to move, the inclined plate adjusts the pitch angle along its first side, so the longitudinally arranged first elongated oval through hole can provide space for the movement of the first ball screw. When the second wedge-shaped inclined surface pushes the second ball screw to move, the inclined plate rotates horizontally along its second side, so the transversely arranged second elongated oval through hole can provide space for the movement of the second ball screw.

[0026] Preferably, it also includes a fourth spring. A baffle is provided on the end face of the inclined plate facing the mounting base, and a snap-fit ​​groove is provided on the end face of the mounting base facing the inclined plate. The baffle is inserted into the snap-fit ​​groove, and the fourth spring is housed in the snap-fit ​​groove. The end of the fourth spring abuts against the baffle. The fourth spring pulls or pushes the baffle to eliminate the fit gap between the ball head and the socket of the third ball screw.

[0027] Therefore, under the action of the fourth spring, the ball head of the third ball screw can be tightly attached to the socket, thereby eliminating the fit gap between the ball head of the third ball screw and the socket, so that the lens will not have unexpected movement during the pitch and horizontal movement, ensuring the adjustment accuracy of the lens.

[0028] Preferably, it also includes a fifth spring. A first fixing post is provided on the end face of the inclined plate facing the mounting base, and a second fixing post is provided on the end face of the mounting base facing the inclined plate. One end of the fifth spring is fixed to the first fixing post, and the other end of the fifth spring is fixed to the second fixing post. The fifth spring pulls the inclined plate to eliminate the fitting gap between the ball head of the first ball screw and the first elongated through hole.

[0029] Therefore, under the action of the fifth spring, the ball head of the first ball screw can be tightly attached to the inner wall of the first elongated through hole, thereby eliminating the fit gap between the ball head of the first ball screw and the inner wall of the first elongated through hole, so that the lens will not have unexpected movement during the pitch and horizontal movement, and ensure the adjustment accuracy of the lens.

[0030] Preferably, the mounting base is located between two lugs, with the end of the mounting base fixed to the lugs. The pitch adjustment screw passes through one lug via a bearing, and the rotation adjustment screw passes through the other lug via a bearing.

[0031] Therefore, the two lugs can provide support for the mounting base. Since the pitch adjustment screw is mounted in the lug through a bearing, when the pitch adjustment screw is turned, the pitch adjustment screw only rotates. Through the thread engagement, it drives the first slider to make a translational movement. The pitch adjustment screw can rotate smoothly on the lug. Since the rotation adjustment screw is mounted in the lug through a bearing, when the rotation adjustment screw is turned, the rotation adjustment screw only rotates. Through the thread engagement, it drives the second slider to make a translational movement. The rotation adjustment screw can rotate smoothly on the lug. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of a lens angle adjustment device for a sight according to the present invention;

[0033] Figure 2 for Figure 1 The diagram shows the disassembled structure of the lens angle adjustment device.

[0034] Figure 3 for Figure 1 A schematic diagram of the lens angle adjustment device from another perspective;

[0035] Figure 4 for Figure 3 The diagram shows a cross-sectional view of the lens angle adjustment device along the AA direction.

[0036] Figure 5 for Figure 2 A schematic diagram of the tilting plate in the lens angle adjustment device shown;

[0037] Figure 6 for Figure 2 A schematic diagram of the mounting base in the lens angle adjustment device shown;

[0038] Figure 7 for Figure 1 A schematic diagram of the lens angle adjustment device from another perspective;

[0039] Figure 8 for Figure 7 The diagram shows a cross-sectional view of the lens angle adjustment device along the BB direction.

[0040] Figure 9 for Figure 1 A schematic diagram of the lens angle adjustment device from a third-view perspective;

[0041] Figure 10 for Figure 9 The diagram shows a cross-sectional view of the lens angle adjustment device along the CC direction.

[0042] Figure 11 for Figure 9 The diagram shows a cross-sectional view of the lens angle adjustment device along the DD direction. Detailed Implementation

[0043] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0044] In the description of this invention, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. In the description of this invention, unless otherwise stated, "a plurality of" means two or more. It should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "connected," "linked," and "set up" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two elements.

[0045] See Figures 1 to 11 A lens angle adjustment device for a sight includes a base 1, a lens 2, a pitch adjustment screw 3, a rotation adjustment screw 4, a tilt plate 5, a mounting base 6, a first slider 7, a second slider 8, a first spring 9, a second spring 10, a tension screw 11, a locking nut 12, a third spring 13, a fourth spring 14, and a fifth spring 15.

[0046] Mounting base 6 is mounted on base 1, tilting plate 5 is mounted on mounting base 6, and lens 2 is mounted on tilting plate 5. The specific connection relationship will be described in detail below.

[0047] See Figure 1 and Figure 2 The base 1 has two lugs 101 formed on it. The two lugs 101 have the same structure and are symmetrically arranged. The mounting seat 6 is located between the two lugs 101. The two ends of the mounting seat 6 are fixed to the two lugs 101 by fixing screws 601 respectively. The two lugs 101 can provide support for the mounting seat 6.

[0048] See Figure 2 and Figure 6 The mounting base 6 has a recessed first receiving groove 62 formed on one side, and a first elongated through hole 63 connected to the first receiving groove 62 is formed on the end face of the mounting base 6 facing the inclined plate 5. The mounting base 6 has a recessed second receiving groove 64 formed on the other side, and a second elongated through hole 65 connected to the second receiving groove 64 is formed on the end face of the mounting base 6 facing the inclined plate 5. The first receiving groove 62 can provide installation space for the first slider 7 to ensure stable movement of the first slider 7, and the second receiving groove 64 can provide installation space for the second slider 8 to ensure stable movement of the second slider 8.

[0049] See Figures 2 to 4 The first slider 7 is housed in the first receiving groove 62 and can move along the depth direction of the first receiving groove 62. The first slider 7 has a first wedge-shaped inclined surface 71 formed on it. The second slider 8 is housed in the second receiving groove 64 and can move along the depth direction of the second receiving groove 64. The second slider 8 has a second wedge-shaped inclined surface 81 formed on it. The first slider 7 and the second slider 8 have the same structure and are symmetrically arranged.

[0050] See Figures 1 to 4 A pitch adjustment screw 3 is inserted into a lug 101, and its end is screwed into a first slider 7 located in a first receiving groove 62. The end of the pitch adjustment screw 3 is threadedly connected to the first slider 7. A rotation adjustment screw 4 is inserted into another lug 101, and its end is screwed into a second slider 8 located in a second receiving groove 64. The end of the rotation adjustment screw 4 is threadedly connected to the second slider 8. A bearing 31 can be installed in the lug 101. The pitch adjustment screw 3 is inserted into the inner ring of the bearing 31 fixed on one lug 101, allowing the pitch adjustment screw 3 to rotate freely on the lug 101. The rotation adjustment screw 4 is inserted into the other lug. In the inner ring of the bearing 31 on 101, the rotary adjusting screw 4 can rotate freely on the lug 101. Since the pitch adjusting screw 3 is installed in the lug 101 through the bearing, when the pitch adjusting screw 3 is turned, the pitch adjusting screw 3 only rotates. Through the thread engagement, it drives the first slider 7 to make translational movement in the first receiving groove 62. The pitch adjusting screw 3 can rotate smoothly on the lug 101. Since the rotary adjusting screw 4 is installed in the lug 101 through the bearing, when the rotary adjusting screw 4 is turned, the rotary adjusting screw 4 only rotates. Through the thread engagement, it drives the second slider 8 to make translational movement in the second receiving groove 64. The rotary adjusting screw 4 can rotate smoothly on the lug 101.

[0051] One lug 101 can be formed with a circular pitch adjustment scale, which is placed around the pitch adjustment screw 3. The pitch angle of the lens 2 can be precisely adjusted by referring to the pitch adjustment scale. The other lug 101 can be formed with a circular horizontal rotation adjustment scale, which is placed around the rotation adjustment screw 4. The horizontal rotation angle of the lens 2 can be precisely adjusted by referring to the horizontal rotation adjustment scale.

[0052] See Figures 2 to 4 The first slider 7 has a first groove 72 formed on its side. One end of the first spring 9 abuts against a lug 101, and the other end of the first spring 9 abuts against the inner bottom of the first groove 72 on the first slider 7. The first spring 9 is in a compressed state. The second slider 8 has a second groove 82 formed on its side. One end of the second spring 10 abuts against another lug 101, and the other end of the second spring 10 abuts against the inner bottom of the second groove 82 on the second slider 8. The second spring 10 is in a compressed state. The first spring 9 can eliminate the fit clearance between the first slider 7 and the pitch adjustment screw 3, and eliminate the thread clearance at the moment of thread rotation, ensuring that the first slider 7 can move smoothly in the first receiving groove 62. The second spring 10 can eliminate the fit clearance between the second slider 8 and the rotation adjustment screw 4, and eliminate the thread clearance at the moment of thread rotation, ensuring that the second slider 8 can move smoothly in the second receiving groove 64.

[0053] See Figure 1 The lens 2 is fixed on the inclined plate 5. In this embodiment, both the lens 2 and the inclined plate 5 are rectangular and placed horizontally. (See reference...) Figure 1 , Figure 2 and Figure 5 The inclined plate 5 is equipped with a first ball-end screw 51, a second ball-end screw 52, ​​and a third ball-end screw 53. These three screws are screwed onto the inclined plate 5 via a screw structure. They are arranged in a triangular pattern, located at the three corners of the inclined plate 5. The first side 501 of the inclined plate 5 is the upper "long side" of the inclined plate 5. Figure 2 As shown), the second side 502 of the inclined plate 5 is the "short side" of the inclined plate 5 located on the side. Figure 2 As shown), the first side 501 and the second side 502 are arranged perpendicularly. The line connecting the first ball-end screw 51 and the third ball-end screw 53 is parallel to the second side 502 of the inclined plate 5, and the line connecting the second ball-end screw 52 and the third ball-end screw 53 is parallel to the first side 501 of the inclined plate 5. (See reference...) Figure 2 , Figures 9 to 11The ball head of the first ball screw 51 abuts against the first wedge-shaped inclined surface 71 of the first slider 7, and the ball head of the first ball screw 51 is accommodated in the first elongated through hole 63 on the mounting base 6. The ball head of the second ball screw 52 abuts against the second wedge-shaped inclined surface 81 of the second slider 8, and the ball head of the second ball screw 52 is accommodated in the second elongated through hole 65 on the mounting base 6. The mounting base 6 has a ball socket 61 formed thereon. Figure 2 and Figure 6 As shown), the ball head of the third ball screw 53 abuts against the ball socket 61; when the pitch adjusting screw 3 is turned, the pitch adjusting screw 3 drives the first slider 7 to make a translational movement in the first receiving groove 62 of the mounting base 6. The first wedge-shaped inclined surface 71 on the first slider 7 drives the first ball screw 51 to move. At this time, the second ball screw 52 and the third ball screw 53 are in a fixed state. The first ball screw 51 drives the inclined plate 5 to rotate along the first side 501 of the inclined plate 5. The inclined plate 5 drives the lens 2 to rotate synchronously, thereby realizing the adjustment of the pitch angle of the lens 2. When the rotation adjusting screw 4 is turned, the rotation adjusting screw 4 drives the first slider 7 to rotate along the first receiving groove 62 of the mounting base 6. The second slider 8 moves in translation within the second receiving groove 64 on the mounting base 6. The second wedge-shaped inclined surface 81 on the second slider 8 drives the second ball screw 52 to move. At this time, the first ball screw 51 and the third ball screw 53 are in a fixed state. The second ball screw 52 drives the inclined plate 5 to rotate along the second side 502 of the inclined plate 5. The inclined plate 5 drives the lens 2 to rotate synchronously, thereby realizing the rotation of the lens 2 around the horizontal direction. Since the ball head of the third ball screw 53 abuts in the ball socket 61, the third ball screw 53 is equivalent to a fixed point when the inclined plate 5 rotates in the pitch and horizontal directions, while the first ball screw... Screw 51 and second ball-head screw 52 are pushed by the first wedge-shaped inclined surface 71 on the first slider 7 and the second wedge-shaped inclined surface 82 on the second slider 8. When the pitch adjustment screw 3 is turned, the first ball-head screw 51 moves, while the second ball-head screw 52 and the third ball-head screw 53 remain fixed. Since the line connecting the second ball-head screw 52 and the third ball-head screw 53 is parallel to the first side 501 of the inclined plate 5, when the first ball-head screw 51 moves, the inclined plate 5 rotates along the first side 501, i.e., the "long side," of the inclined plate 5. That is, the pitch adjustment screw 3 can drive the inclined plate 5 to rotate along the first side 501, i.e., the "long side," on the mounting base 6. When one side 501 rotates, the tilt angle of the lens 2 can be adjusted. When the rotary adjustment screw 4 is turned, the second ball screw 52 moves, while the first ball screw 51 and the third ball screw 53 are in a fixed state. Since the line connecting the first ball screw 51 and the third ball screw 53 is parallel to the second side 502 of the tilting plate 5, when the second ball screw 52 moves, the tilting plate 5 rotates along the second side 502 of the tilting plate 5, i.e., the "short side". In other words, the rotary adjustment screw 4 can drive the tilting plate 5 to rotate on the mounting base 6 along the second side 502 of the tilting plate 5, thereby realizing the rotation of the lens 2 around the horizontal direction.

[0054] See Figure 2 The inclined plate 5 has a countersunk hole 503 formed on it, and the nut of the tension screw 11 is a conical countersunk type. (See reference) Figure 6 The mounting base 6 has a stepped hole 68 formed on it. (See reference) Figure 2 , Figures 6 to 8 The tension screw 11 passes through the countersunk hole 503 on the inclined plate 5 and then into the stepped hole 68 on the mounting base 6. The nut of the tension screw 11 is recessed in the countersunk hole 503, and the end of the tension screw 11 protrudes from the stepped hole 68 on the mounting base 6. The third spring 13 is fitted onto the tension screw 11 and is located between the inclined plate 5 and the mounting base 6. One end of the third spring 13 is fixed to the inclined plate 5, and the other end is fixed to the mounting base 6. The third spring 13 can be in a stretched state. The locking nut 12 is screwed onto the end of the tension screw 11, thereby allowing the inclined plate 5 to be tilted towards the mounting base. Pulling in six directions, under the action of locking nut 12 and third spring 13, tightening screw 11 pulls inclined plate 5 towards mounting base 6, so that the ball head of the first ball head screw 51 on inclined plate 5 is tightly attached to the first wedge-shaped inclined surface 71 on the first slider 7, the ball head of the second ball head screw 52 on inclined plate 5 is tightly attached to the second wedge-shaped inclined surface 81 on the second slider 8, and the ball head of the third ball head screw 53 on inclined plate 5 is tightly attached to the ball socket 61 on mounting base 6. This ensures that while adjusting the attitude angle of lens 2 in one direction, the attitude angle of the other direction will not change, and the position of the other attitude angle will not be affected.

[0055] See Figure 2 and Figure 6 The first elongated oval through hole 63 is arranged longitudinally, and the second elongated oval through hole 65 is arranged transversely. The first elongated oval through hole 63 can provide space for the movement of the first ball screw 51, and the second elongated oval through hole 65 can provide space for the movement of the second ball screw 52. Since the tilting plate 5 adjusts its pitch angle along its first side 501 when the first wedge-shaped inclined surface 71 pushes the first ball screw 51 to move, the longitudinally arranged first elongated oval through hole 63 can provide space for the movement of the first ball screw 51 to avoid jamming. Since the tilting plate 5 rotates horizontally along its second side 502 when the second wedge-shaped inclined surface 82 pushes the second ball screw 52 to move, the transversely arranged second elongated oval through hole 65 can provide space for the movement of the second ball screw 52 to avoid jamming.

[0056] See Figure 2 , Figure 5 and Figure 6A baffle 54 is formed on the end face of the inclined plate 5 facing the mounting base 6. The baffle 54 is located on the side of the third ball screw 53. A snap-fit ​​groove 66 is formed on the end face of the mounting base 6 facing the inclined plate 5. The snap-fit ​​groove 66 is located on the side of the ball socket 61. The baffle 54 is inserted into the snap-fit ​​groove 66. The fourth spring 14 is accommodated in the snap-fit ​​groove 66. The end of the fourth spring 14 abuts against the baffle 54. The fourth spring 14 can pull or push the baffle 54. In this embodiment, the fourth spring 14 is compressed. In this state, the fourth spring 14 pushes the baffle 54, thereby eliminating the fit clearance between the ball head of the third ball screw 53 on the inclined plate 5 and the ball socket 61 on the mounting base 6. Under the action of the fourth spring 14, the ball head of the third ball screw 53 can be tightly attached to the ball socket 61, thereby eliminating the fit clearance between the ball head of the third ball screw 53 and the ball socket 61, so that the lens 2 will not have unexpected movement during the pitch and horizontal movement, ensuring the adjustment accuracy of the lens 2.

[0057] See Figure 2 , Figure 5 and Figure 6 A first fixing post 55 is formed on the end face of the inclined plate 5 facing the mounting base 6. The first fixing post 55 can be a screw and is screwed onto the inclined plate 5. A second fixing post 67 is formed on the end face of the mounting base 6 facing the inclined plate 5. The second fixing post 67 can be a screw and is screwed onto the mounting base 6. One end of the fifth spring 15 is fixed to the first fixing post 55, and the other end of the fifth spring 15 is fixed to the second fixing post 67. The fifth spring 15 pulls the inclined plate 5 to eliminate the fitting gap between the ball head of the first ball screw 51 on the inclined plate 5 and the first elongated oval through hole 63 on the mounting base 6. Under the action of the fifth spring 15, the ball head of the first ball screw 51 can be tightly attached to the inner wall of the first elongated oval through hole 63, thereby eliminating the fitting gap between the ball head of the first ball screw 51 and the inner wall of the first elongated oval through hole 63, so that the lens 2 will not have unexpected movement during the pitch and horizontal movement, and ensure the adjustment accuracy of the lens 2.

[0058] See Figures 1 to 11The present invention relates to a lens angle adjustment device for a sight. The base 1 is mounted on the sight. When the attitude angle of the lens 2 needs to be adjusted, the pitch adjustment screw 3 is turned. The pitch adjustment screw 3 drives the first slider 7 to move in the first receiving groove 62 of the mounting base 6. The first wedge-shaped inclined surface 71 on the first slider 7 drives the first ball screw 51 to move. At this time, the second ball screw 52 and the third ball screw 53 are in a fixed state. The first ball screw 51 drives the inclined plate 5 to rotate along the first side 501 of the inclined plate 5. The inclined plate 5 drives the lens 2 to rotate synchronously, thereby realizing the adjustment of the pitch angle of the lens 2. Turning the rotation adjustment screw 4 drives the second slider 8 to move in the second receiving groove 64 of the mounting base 6. The second ball screw 52 moves while the second wedge-shaped inclined surface 81 on the second slider 8 is in a translational motion. At this time, the first ball screw 51 and the third ball screw 53 are in a fixed state. The second ball screw 52 drives the inclined plate 5 to rotate along the second side 502 of the inclined plate 5. The inclined plate 5 drives the lens 2 to rotate synchronously, thereby realizing the rotation of the lens 2 around the horizontal direction. In addition, under the action of the locking nut 12 and the third spring 13, the tension screw 11 pulls the inclined plate 5 towards the mounting base 6, so that the ball head of the first ball screw 51 on the inclined plate 5 is in close contact with the first wedge-shaped inclined surface 81 on the first slider 7, and the ball head of the second ball screw 52 on the inclined plate 5 is in close contact with the second wedge-shaped inclined surface 81 on the second slider 8. 1. The ball head of the third ball screw 53 on the inclined plate 5 is tightly attached to the ball socket 61 on the mounting base 6, ensuring that while adjusting the attitude angle (such as the pitch angle) of the lens 2 in one direction, the attitude angle (such as the horizontal angle) will not change, and will not affect the position of the other attitude angle, and vice versa; the first spring 9 can eliminate the fit clearance between the threads of the first slider 7 and the pitch adjustment screw 3, and eliminate the thread clearance at the moment of thread rotation, ensuring that the first slider 7 can move smoothly in the first receiving groove 62; the second spring 10 can eliminate the fit clearance between the threads of the second slider 8 and the rotation adjustment screw 4, and eliminate the thread clearance at the moment of thread rotation, ensuring that the second slider 8 can move smoothly in the second receiving groove 62. The first ball screw 53 moves within the receiving groove 64. Simultaneously, under the action of the fourth spring 14, the ball head of the third ball screw 53 can be tightly attached to the ball socket 61, thereby eliminating the fit gap between the ball head of the third ball screw 53 and the ball socket 61, ensuring that the lens 2 will not have unexpected movement during pitch and horizontal movement, thus ensuring the adjustment accuracy of the lens 2. Under the action of the fifth spring 15, the ball head of the first ball screw 51 can be tightly attached to the inner wall of the first elongated through hole 63, thereby eliminating the fit gap between the ball head of the first ball screw 51 and the inner wall of the first elongated through hole 63, ensuring that the lens 2 will not have unexpected movement during pitch and horizontal movement, thus ensuring the adjustment accuracy of the lens 2.The lens angle adjustment device of the present invention has a simple structure and can adjust the attitude angle of the lens 2 in both pitch and horizontal directions, thereby achieving adjustment of two attitude angles of the lens. Moreover, while adjusting the attitude angle of the lens 2 in one direction, the other attitude angle remains unchanged and its position is not affected.

[0059] The above descriptions are merely some embodiments of the present invention, intended to illustrate the technical means of the present invention, and are not intended to limit the technical scope of the present invention. Any obvious improvements made to the present invention by those skilled in the art in conjunction with existing common knowledge fall within the protection scope of the present invention.

Claims

1. A lens angle adjustment device for a sight, comprising a base and a lens, the lens being disposed on the base, characterized in that, It also includes a pitch adjustment screw, a rotation adjustment screw, a tilt plate, a mounting base, a first slider, a second slider, a tension screw, a lock nut, a third spring, and a fourth spring. The mounting base is located on the base, the tilting plate is located on the mounting base, and the lens is located on the tilting plate. The pitch adjustment screw is mounted on the base and screwed into the first slider. The rotation adjustment screw is mounted on the base and screwed into the second slider. The inclined plate is provided with a first ball-end screw, a second ball-end screw, and a third ball-end screw arranged in a triangle. The first slider has a first wedge-shaped inclined surface, and the second slider has a second wedge-shaped inclined surface. The first ball-end screw abuts against the first wedge-shaped inclined surface, and the second ball-end screw abuts against the second wedge-shaped inclined surface. The mounting base has a ball socket, and the ball head of the third ball-end screw abuts against the ball socket. The pitch adjustment screw drives the tilt plate to rotate along its first side on the mounting base, and the rotation adjustment screw drives the tilt plate to rotate along its second side on the mounting base. The first and second sides are perpendicular to each other. The tensioning screw passes through the inclined plate and is inserted into the mounting base. The third spring is sleeved on the tensioning screw, with one end of the third spring abutting against the inclined plate and the other end abutting against the mounting base. The lock nut is screwed onto the end of the tension screw to pull the tilt plate toward the mounting base. The inclined plate has a baffle on the end face facing the mounting base, and the mounting base has a snap-fit ​​groove on the end face facing the inclined plate. The baffle is inserted into the snap-fit ​​groove, and the fourth spring is housed in the snap-fit ​​groove. The end of the fourth spring abuts against the baffle. The fourth spring pulls or pushes the baffle to eliminate the fit gap between the ball head and the socket of the third ball screw.

2. The lens angle adjustment device according to claim 1, characterized in that, The line connecting the first ball-end screw and the third ball-end screw is parallel to the second side of the inclined plate, and the line connecting the second ball-end screw and the third ball-end screw is parallel to the first side of the inclined plate.

3. The lens angle adjustment device according to claim 1, characterized in that, It also includes a first spring and a second spring, and the base is provided with two lugs. The pitch adjustment screw is inserted into a lug, and the end of the pitch adjustment screw is screwed into the first slider. One end of the first spring abuts against the lug, and the other end of the first spring abuts against the first slider. The rotary adjusting screw is inserted into another lug and the end of the rotary adjusting screw is screwed into the second slider. One end of the second spring abuts against the lug and the other end of the second spring abuts against the second slider.

4. The lens angle adjustment device according to claim 1, characterized in that, The mounting base has a recessed first receiving groove on one side, and a first elongated oval through hole communicating with the first receiving groove is provided on the end face of the mounting base facing the inclined plate. The first slider is received in the first receiving groove, and the ball head of the first ball screw is received in the first elongated oval through hole. The mounting base has a recessed second receiving groove on the other side, and a second elongated through hole communicating with the second receiving groove is provided on the end face of the mounting base facing the inclined plate. The second slider is received in the second receiving groove, and the ball head of the second ball screw is received in the second elongated through hole.

5. The lens angle adjustment device according to claim 4, characterized in that, The first oblong through hole is arranged longitudinally, and the second oblong through hole is arranged transversely.

6. The lens angle adjustment device according to claim 4, characterized in that, It also includes a fifth spring. The inclined plate has a first fixing post on the end face facing the mounting base, and the mounting base has a second fixing post on the end face facing the inclined plate. One end of the fifth spring is fixed to the first fixing post, and the other end of the fifth spring is fixed to the second fixing post. The fifth spring pulls the inclined plate to eliminate the fitting gap between the ball head of the first ball screw and the first elongated through hole.

7. The lens angle adjustment device according to claim 3, characterized in that, The mounting base is located between two lugs, and the end of the mounting base is fixed to the lugs. The pitch adjustment screw passes through one lug via a bearing, and the rotation adjustment screw passes through the other lug via a bearing.

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