Vehicle-mounted sight with easily replaceable adjustment knobs

Abstract

The application discloses a vehicle-mounted sighting device with a convenient-to-replace adjusting knob, which comprises a mirror body, a base and an elastic piece, the front end of the mirror body is hinged to the base, the elastic piece is arranged between the mirror body and the base, one end of the elastic piece is connected to the mirror body, the other end of the elastic piece is connected to the base, the adjusting knob is further arranged, the end face of the rear end of the mirror body is provided with a bottom-opened concave cavity, the bottom wall of the concave cavity is provided with an inserting hole, the base is provided with a pad, the pad is located at the bottom of the concave cavity, the end face of the front end of the adjusting knob is provided with an inserting shaft, the circumferential surface of the inserting shaft is provided with an eccentric wheel, the outer periphery of the eccentric wheel is provided with a rotation-stopping part, the inserting shaft is inserted into the inserting hole, the outer periphery of the eccentric wheel abuts against the top of the pad, and when the rotation-stopping part abuts against the side of the pad, the eccentric wheel cannot keep the original rotating direction to continue rotating. The adjusting knob of the vehicle-mounted sighting device is simple in structure and convenient to replace, and the ballistic characteristics of different firearms can be met by conveniently replacing the adjusting knob.

Description

Technical Field

[0001] This invention relates to the field of vehicle-mounted sights, and particularly to a vehicle-mounted sight with a conveniently replaceable adjustment knob. Background Technology

[0002] Vehicle-mounted and airborne sights refer to aiming devices installed on vehicles and aircraft. The pitch angle, as a key adjustment parameter of the sight, refers to the angle of the sight relative to the horizontal plane. It indicates the degree of vertical adjustment or tilt of the sight. When the pitch angle of the sight increases, the aiming point will move upward, and when the pitch angle decreases, the aiming point will move downward. By changing the pitch angle, the aiming point can be shifted vertically, thereby meeting the target distance requirements.

[0003] To meet different shooting needs, firearms on existing vehicles and aircraft are equipped with sights with different elevation adjustment accuracies. When it is necessary to replace the sight with a different elevation adjustment accuracies, the vehicle-mounted sight on the firearm needs to be replaced as a whole. After each sight replacement, the left and right adjustment knobs on the sight also need to be readjusted to adapt to the ballistic characteristics of the firearm. This makes replacing sights with different elevation adjustment accuracies very troublesome and affects the efficiency of shooting operations. Summary of the Invention

[0004] The present invention provides a vehicle-mounted sight with a conveniently replaceable adjustment knob to solve at least one of the above-mentioned technical problems.

[0005] According to one aspect of the present invention, a vehicle-mounted sight with a conveniently replaceable adjustment knob is provided, comprising a scope body, a base, and an elastic element. The front end of the scope body is hinged to the base, and the elastic element is disposed between the scope body and the base. One end of the elastic element is connected to the scope body, and the other end of the elastic element is connected to the base. The elastic element is used to drive the rear end of the scope body closer to the base. The sight also includes an adjustment knob.

[0006] The end face at the rear of the microscope body has a recessed cavity with an open bottom, and the bottom wall of the cavity has a insertion hole.

[0007] A pad is provided on the base, and the pad is located at the bottom of the cavity.

[0008] The front end face of the adjustment knob is provided with a connecting shaft, the circumference of which is provided with an eccentric wheel, and the outer circumference of the eccentric wheel is provided with an anti-rotation part.

[0009] The connector shaft is inserted into the connector hole, and the outer circumference of the eccentric wheel abuts against the top of the pad.

[0010] When the anti-rotation part comes into contact with the side of the pad, the eccentric wheel cannot maintain its original direction of rotation and continues to rotate.

[0011] The vehicle-mounted sight of this invention has a base mounted on a firearm in a vehicle or aircraft. When the elevation angle of the scope needs to be adjusted, the adjustment knob is rotated. The adjustment knob drives the insertion shaft to rotate in the insertion hole, and the insertion shaft drives the eccentric wheel to rotate synchronously. Since the outer circumference of the eccentric wheel abuts against the top of the pad, the rear end of the scope moves closer to or further away from the base during the rotation of the eccentric wheel, thereby changing the elevation angle of the scope. The anti-rotation part on the eccentric wheel can limit the rotation angle of the eccentric wheel. When the anti-rotation part abuts against the side of the pad, the rotation angle of the eccentric wheel reaches its maximum. When it is necessary to change the adjustment knob with different elevation angle adjustment precision, a rod-shaped or flat tool is inserted into the gap between the rear end of the scope and the base to increase the gap between the rear end of the scope and the base, and then the adjustment knob is turned... Pull the connecting shaft out of the connecting hole to remove the adjustment knob. Insert the connecting shafts of the adjustment knobs with different adjustment accuracies into the connecting holes, and make the outer circumference of the eccentric wheel on the adjustment knob abut against the pad. At this time, the replacement of the adjustment knob is completed. During shooting operations, when it is necessary to change the elevation angle adjustment accuracy, it is not necessary to replace the entire vehicle-mounted sight on the firearm. Only the adjustment knob needs to be replaced. It is very convenient to replace the adjustment knobs with different adjustment accuracies. Moreover, after replacing the adjustment knob, it is not necessary to readjust the left and right adjustment knobs on the scope to adapt to the ballistic characteristics of the firearm, thereby improving the efficiency of shooting operations. The adjustment knob in the vehicle-mounted sight of the present invention has a simple structure and is easy to replace. It can meet the ballistic characteristics of different firearms by conveniently replacing the adjustment knob.

[0012] Preferably, a limiting protrusion is provided on the bottom wall of the cavity, and a limiting groove is provided on the end face of the eccentric wheel, which is circumferentially placed around the outer periphery of the insertion shaft. The starting end and the ending end of the limiting groove are not connected, and the limiting protrusion is accommodated in the limiting groove to limit the rotation angle of the eccentric wheel.

[0013] Therefore, during the rotation of the adjustment knob, the limiting protrusion moves along the direction of the limiting groove. Since the starting and ending ends of the limiting groove are not connected, the limiting protrusion can limit the rotation angle of the adjustment knob. When the limiting protrusion is at the starting end of the limiting groove, the rotation angle of the adjustment knob is 0. During the rotation of the adjustment knob, when the limiting protrusion is at the ending end of the limiting groove, the rotation angle of the adjustment knob reaches its maximum.

[0014] Preferably, the limiting protrusion is a screw, which is screwed into the bottom wall of the cavity and located below the insertion hole.

[0015] Therefore, screwing the screw into the bottom wall of the cavity will form a limiting protrusion that limits the rotation angle of the adjustment knob. Assembly is very simple. Since the limiting groove is placed around the outer circumference of the plug shaft, the limiting protrusion can be positioned below the plug hole.

[0016] Preferably, when the limiting protrusion is accommodated at the beginning end of the limiting groove, the anti-rotation part abuts against the side of the pad and the distance between the pad and the insertion shaft is at its minimum.

[0017] When the limiting protrusion is accommodated at the end of the limiting groove, the anti-rotation part abuts against the top of the pad and the distance between the pad and the insertion shaft is at its maximum value.

[0018] Therefore, when the limiting protrusion is at the beginning of the limiting groove, the anti-rotation part on the eccentric wheel cannot rotate towards the pad, and the distance between the pad and the insertion shaft is at its minimum. At this time, the rotation angle of the adjustment knob is defined as 0, and the adjustment knob is in the starting position. When the limiting protrusion is at the end of the limiting groove, the anti-rotation part on the eccentric wheel just abuts against the top of the pad, and the distance between the pad and the insertion shaft reaches its maximum value. At this time, the rotation angle of the adjustment knob is defined as its maximum value, and the adjustment knob is in the ending position.

[0019] Preferably, the plug shaft and the plug hole are clearance-fitted, allowing the plug shaft to rotate freely within the plug hole.

[0020] Therefore, the clearance fit between the plug shaft and the plug hole ensures that the plug shaft can rotate freely in the plug hole, thereby allowing the adjustment knob to rotate along the ground.

[0021] Preferably, the corner between the top and side of the pad is sloped.

[0022] Therefore, when the anti-rotation part on the eccentric wheel abuts against the side of the pad, the corner between the top and side of the inclined pad can effectively reduce the contact damage to the outer circumference of the eccentric wheel and extend the service life of the eccentric wheel. If the corner between the top and side of the pad is a 90-degree straight edge, with the increase of the number of uses, the 90-degree straight edge will cause contact damage to the outer circumference of the eccentric wheel and reduce the service life of the eccentric wheel.

[0023] Preferably, it also includes a cover plate with a U-shaped slot. The cover plate is inserted between the adjustment knob and the eccentric wheel. The insertion shaft is accommodated in the U-shaped slot. The cover plate is located on the end face of the rear end of the lens body to cover the cavity. The cover plate and the lens body are detachably connected.

[0024] Therefore, the cover plate can prevent the plug shaft on the adjustment knob from coming out of the plug hole, and it can also cover the cavity to prevent dust and foreign objects from entering the mirror body. The U-shaped slot on the cover plate can ensure that the plug shaft on the adjustment knob rotates in the direction of the field, so that the cover plate will not interfere with the rotation of the adjustment knob.

[0025] Preferably, it also includes a fixing screw, the end of which passes through the cover plate and is screwed into the end face of the rear end of the lens body.

[0026] Therefore, the cover plate is installed on the mirror body by fixing screws. When the adjustment knob needs to be replaced, unscrew the fixing screws, pull the cover plate upwards, and then replace the adjustment knob. After the adjustment knob is replaced, insert the cover plate downwards between the adjustment knob and the eccentric wheel, with the insertion shaft accommodated in the U-shaped slot. Then, use the fixing screws to fix the cover plate. The installation and removal of the cover plate is also very convenient.

[0027] Preferably, it also includes a first washer, and the end face of the eccentric wheel near the cover plate is provided with a first annular groove that is arranged around the outer periphery of the plug shaft. The first washer is accommodated in the first annular groove and the first washer is attached to the cover plate.

[0028] Therefore, since the first washer is attached to the cover plate, the eccentric wheel can rotate smoothly relative to the cover plate, preventing axial and radial runout of the eccentric wheel during rotation. Moreover, the first washer can eliminate the gap between the eccentric wheel and the cover plate, preventing hard contact between the eccentric wheel and the cover plate when the adjustment knob is turned.

[0029] Preferably, it also includes a second washer, wherein a second annular groove is provided on the end face of the eccentric wheel near the bottom wall of the cavity, which is arranged around the outer periphery of the insertion shaft, and the second washer is accommodated in the second annular groove and fits against the bottom wall of the cavity.

[0030] Therefore, since the second washer is attached to the bottom wall of the cavity, the eccentric wheel can rotate smoothly relative to the bottom wall of the cavity, preventing axial and radial runout of the eccentric wheel during rotation. Moreover, the second washer can eliminate the gap between the eccentric wheel and the bottom wall of the cavity, preventing hard contact between the eccentric wheel and the bottom wall of the cavity when the adjustment knob is turned. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the structure of a vehicle-mounted sight with a conveniently replaceable adjustment knob according to the present invention;

[0032] Figure 2 for Figure 1 The diagram shows the disassembled structure of the vehicle-mounted sight;

[0033] Figure 3 for Figure 2 An enlarged structural diagram of point A in the vehicle-mounted sight shown;

[0034] Figure 4 for Figure 2 A schematic diagram of the adjustment knob in the vehicle-mounted sight shown;

[0035] Figure 5 for Figure 4 A schematic diagram of the adjustment knob from another perspective;

[0036] Figure 6 for Figure 4A structural schematic diagram of the adjustment knob from another perspective;

[0037] Figure 7 for Figure 4 A schematic diagram of the adjustment knob from a fourth-view perspective;

[0038] Figure 8 for Figure 1 The diagram shows the structure of the vehicle-mounted sight after the hidden cover and adjustment knob are shown.

[0039] Figure 9 for Figure 1 The diagram shows the status of the vehicle-mounted sight replacement adjustment knob.

[0040] Figure 10 for Figure 1 The diagram shows a different type of adjustment knob used in vehicle-mounted sights to adjust accuracy.

[0041] Figure 11 for Figure 10 A schematic diagram of the adjustment knob from another perspective;

[0042] Figure 12 for Figure 10 The diagram shows another view of the adjustment knob. 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 8 A vehicle-mounted sight with a conveniently replaceable adjustment knob includes a scope body 1, a base 2, an elastic element, an adjustment knob 3, a cover plate 4, a fixing screw 5, a first washer 6, and a second washer 7.

[0046] Figure 1 In this context, the F1 direction is defined as the front end of mirror body 1, and the F2 direction is defined as the rear end of mirror body 1.

[0047] See Figure 1 and Figure 2 The front end of the mirror body 1 is hinged to the base 2. An elastic element, such as a spring (not shown), is installed between the mirror body 1 and the base 2. One end of the elastic element is connected to the mirror body 1, and the other end is connected to the base 2. The elastic element can drive the rear end of the mirror body 1 to approach the base 2. The connection relationship between the mirror body 1, the base 2, and the elastic element is not the object of protection of this application. The connection relationship between the mirror body 1, the base 2, and the elastic element adopts the existing structure, such as the connection relationship between the inner red dot module carrier, the carrier, and the reset spring in the announcement number CN211696074U, which will not be described in detail here.

[0048] See Figure 2 and Figure 3 A cavity 11 is formed on the end face of the rear end of the mirror body 1. The bottom of the cavity 11 is open. An insertion hole 12 is formed on the bottom wall 111 of the cavity 11. A pad 21 is installed on the base 2. The pad 21 is located at the bottom of the cavity 11.

[0049] See Figure 2 and Figure 3 A limiting protrusion 13 is provided on the bottom wall 111 of the cavity 11. In this embodiment, the limiting protrusion 13 is a screw. The limiting protrusion 13 is screwed into the bottom wall 111 of the cavity 11. The position of the limiting protrusion 13 is located below the insertion hole 12. The limiting protrusion 13 that limits the rotation angle of the adjustment knob 3 can be formed by screwing the screw into the bottom wall 111 of the cavity 11. The assembly is very simple.

[0050] See Figures 3 to 7 A connector shaft 31 is provided on the end face of the front end of the adjustment knob 3. The connector shaft 31 is arranged coaxially with the screwing part of the adjustment knob 3. The connector shaft 31 and the screwing part of the adjustment knob 3 are integrally formed. The connector shaft 31 can also be screwed onto the screwing part of the adjustment knob 3 in the form of a screw. The connector shaft 31 is used to insert into the connector hole 12 on the bottom wall 111 of the cavity 11. The connector shaft 31 and the connector hole 12 are clearance-fitted. The clearance-fitted connector shaft 31 and the connector hole 12 ensure that the connector shaft 31 can rotate freely in the connector hole 12, so that the adjustment knob 3 can rotate in the direction of the field.

[0051] See Figures 3 to 7An eccentric wheel 32 is provided circumferentially on the insertion shaft 31. An anti-rotation part 321 is formed on the outer circumference of the eccentric wheel 32. The eccentric wheel 32 and the insertion shaft 31 can be integrally formed, or the eccentric wheel 32 can be directly sleeved and fixed onto the insertion shaft 31. The distance between the outer circumference of the eccentric wheel 32 and the axis of the insertion shaft 31 gradually increases and changes continuously. The distance between the outer circumference of the eccentric wheel 32 and the axis of the insertion shaft 31 reaches its maximum value at the anti-rotation part 321. When the insertion shaft 31 is inserted into the insertion hole 12, such as... Figure 8 As shown, the outer periphery of the eccentric wheel 32 abuts against the top of the pad 21. When the anti-rotation part 321 abuts against the left side of the pad 21, the eccentric wheel 32 cannot maintain its original rotation direction B and continue to rotate.

[0052] See Figures 4 to 7 The end face of the eccentric wheel 32 is formed with a limiting groove 322 that is placed around the outer periphery of the plug shaft 31. The starting end 3221 and the ending end 3222 of the limiting groove 322 are not connected.

[0053] See Figure 3 and Figure 4 When the insertion shaft 31 is inserted into the insertion hole 12, the limiting protrusion 13 is accommodated in the limiting groove 322. The limiting protrusion 13 can limit the rotation angle of the eccentric wheel 32. Since the limiting groove 322 is arranged around the outer periphery of the insertion shaft 31, the position of the limiting protrusion 13 can be set below the insertion hole 12. During the rotation of the adjustment knob 3, the limiting protrusion 13 moves along the direction of the limiting groove 322. Since the starting end 3221 and the ending end 3222 of the limiting groove 322 are not connected, the limiting protrusion 13 can limit the rotation angle of the adjustment knob 3. When the limiting protrusion 13 is located at the starting end 3221 of the limiting groove 322, the rotation angle of the adjustment knob 3 is 0. During the rotation of the adjustment knob 3, when the limiting protrusion 13 is located at the starting end 3221 of the limiting groove 322, the rotation angle of the adjustment knob 3 is 0. When the eccentric wheel 32 is at the end 3222 of the groove 322, the rotation angle of the adjustment knob 3 reaches its maximum. When the limiting protrusion 13 is at the beginning 3221 of the limiting groove 322, the anti-rotation part 321 on the eccentric wheel 32 abuts against the side of the pad 21, and the anti-rotation part 321 on the eccentric wheel 32 cannot rotate in the direction of the pad 21. The distance between the pad 21 and the insertion shaft 31 is at its minimum value. The rotation angle of the adjustment knob 3 is defined as 0 at this time. The adjustment knob 3 is in the starting position at this time. When the limiting protrusion 13 is at the end 3222 of the limiting groove 322, the anti-rotation part 321 on the eccentric wheel 32 just abuts against the top of the pad 21. The distance between the pad 21 and the insertion shaft 31 reaches its maximum value. The rotation angle of the adjustment knob 3 is defined as its maximum value at this time. The adjustment knob 3 is in the ending position at this time.

[0054] See Figure 3In this embodiment, the corner between the top and side of the pad 21 is beveled. When the anti-rotation part 321 on the eccentric wheel 32 abuts against the side of the pad 21, the beveled corner between the top and side of the pad 21 can effectively reduce the contact damage to the outer periphery of the eccentric wheel 32 and extend the service life of the eccentric wheel 32. If the corner between the top and side of the pad 21 is a 90-degree straight edge, with the increase of use, the 90-degree straight edge will cause contact damage to the outer periphery of the eccentric wheel 32, reducing the service life of the eccentric wheel 32. In other embodiments, the corner between the top and side of the pad 21 can also be arc-shaped.

[0055] See Figure 2 The cover plate 4 has a U-shaped slot 41 formed on it. The cover plate 4 is inserted between the adjustment knob 3 and the eccentric wheel 32. The insertion shaft 31 is accommodated in the U-shaped slot 41. The cover plate 4 is installed on the end face of the rear end of the mirror body 1. The cover plate 4 can cover the cavity 11. The cover plate 4 can prevent the insertion shaft 31 on the adjustment knob 3 from coming out of the insertion hole 12, and can also cover the cavity 11 to prevent dust and foreign objects from entering the mirror body 1. The presence of the U-shaped slot 41 on the cover plate 4 can ensure that the insertion shaft 31 on the adjustment knob 3 rotates in the direction of the field, so that the cover plate 4 will not interfere with the rotation of the adjustment knob 3.

[0056] In this embodiment, the cover plate 4 is detachably connected to the mirror body 1. The cover plate 4 is installed on the end face of the rear end of the mirror body 1 by fixing screws 5. There are four fixing screws 5. The ends of the four fixing screws 5 pass through the four corners of the cover plate 4 and are screwed into the end face of the rear end of the mirror body 1. When the adjustment knob 3 needs to be replaced, unscrew the fixing screws 5, pull the cover plate 4 upward, and then replace the adjustment knob 3. After the adjustment knob 3 is replaced, insert the cover plate 4 downward between the adjustment knob 3 and the eccentric wheel 32, with the insertion shaft 31 accommodated in the U-shaped slot 41. Then, use the fixing screws 5 to fix the cover plate 4. The installation and removal of the cover plate 4 is also very convenient.

[0057] See Figures 4 to 7The eccentric wheel 32 has a first annular groove 323 formed on the end face near the cover plate 4, which is circumferentially arranged around the insertion shaft 31. The first washer 6 is snapped and accommodated in the first annular groove 323 and is attached to the cover plate 4. The eccentric wheel 32 has a second annular groove 324 formed on the end face near the bottom wall 111 of the cavity 11, which is circumferentially arranged around the insertion shaft 31. The second washer 7 is snapped and accommodated in the second annular groove 324 and is attached to the bottom wall 111 of the cavity 11. Because the first washer 6 is attached to the cover plate 4, the eccentric wheel 32 can rotate smoothly relative to the cover plate 4, preventing axial and radial runout of the eccentric wheel 32 during rotation. Moreover, the first washer 6 can eliminate the eccentric wheel The gap between the eccentric wheel 32 and the cover plate 4 prevents the eccentric wheel 32 from making hard contact with the cover plate 4 when the adjustment knob 3 is rotated. Since the second washer 7 is attached to the bottom wall 111 of the cavity 11, the eccentric wheel 32 can rotate smoothly relative to the bottom wall 111 of the cavity 11, preventing the eccentric wheel 32 from running axially and radially during rotation. Moreover, the second washer 7 can eliminate the gap between the eccentric wheel 32 and the bottom wall 111 of the cavity 11, preventing the eccentric wheel 32 from making hard contact with the bottom wall 111 of the cavity 11 when the adjustment knob 3 is rotated. The first washer 6 and the second washer 7 can work together to ensure that the adjustment knob 3 rotates smoothly and prevent the eccentric wheel 32 on the adjustment knob 3 from running axially and radially during rotation.

[0058] Figures 10 to 12 The diagram schematically illustrates the structure of another precision adjustment knob used in the vehicle-mounted sight of the present invention.

[0059] See Figures 10 to 12 The replaceable adjustment knob of the vehicle-mounted sight of the present invention is adjustment knob A8, and the structure of adjustment knob A8 is the same as... Figures 4 to 7 The adjustment knob 3 shown has the same structure, except that the dimensional parameters of the eccentric wheel A81 on the adjustment knob A8 are the same. Figures 4 to 7 The eccentric wheels 32 on the adjustment knobs 3 shown are different, thus corresponding to different adjustment precisions, such as: Figures 4 to 7 The adjustment precision scale of the adjustment knob 3 shown is 300, 500, 600, 800, 1000, 1200, 1400, 1600, 1800, and 2000. Figures 10 to 12 The adjustment precision scale of the adjustment knob A8 shown is 100, 300, 500, 600, 700, 800, 900, 1000, 1100, 1200.

[0060] See Figures 1 to 9The vehicle-mounted sight of the present invention has its base 2 mounted on a firearm in a vehicle or aircraft. When the elevation angle of the scope 1 needs to be adjusted, the adjustment knob 3 is rotated. The adjustment knob 3 drives the insertion shaft 31 to rotate in the insertion hole 12. The insertion shaft 31 drives the eccentric wheel 32 to rotate synchronously. Since the outer periphery of the eccentric wheel 32 abuts against the top of the pad 21, the rear end of the scope 1 moves closer to or further away from the base 2 during the rotation of the eccentric wheel 32, thereby changing the elevation angle of the scope 1 and limiting the protrusion. The anti-rotation part 321 on the eccentric wheel 32 and the eccentric wheel 33 can limit the rotation angle of the eccentric wheel 32. During the rotation of the adjustment knob 3, the limiting protrusion 13 moves along the direction of the limiting groove 322 in the limiting groove 322. When the limiting protrusion 13 is located at the starting end 3221 of the limiting groove 322, the anti-rotation part 321 on the eccentric wheel 32 abuts against the side of the pad 21. The anti-rotation part 321 on the eccentric wheel 32 cannot rotate in the direction of the pad 21. The pad 21 and the insertion shaft are connected. When the distance between 31 is at its minimum, the rotation angle of the adjusting knob 3 is 0, and the adjusting knob 3 is in the starting position. When the limiting protrusion 13 is located at the end 3222 of the limiting groove 322, the anti-rotation part 321 on the eccentric wheel 32 just abuts against the top of the pad 21, and the distance between the pad 21 and the insertion shaft 31 reaches its maximum. At this time, the rotation angle of the adjusting knob 3 is at its maximum, and the adjusting knob 3 is in the ending position. At the same time, the first washer 6 and the second washer 7 can jointly ensure that the adjusting knob 3 rotates smoothly and prevent the eccentric wheel 32 on the adjusting knob 3 from axial and radial runout during rotation. When it is necessary to change the pitch angle adjustment accuracy, use a rod-shaped or flat tool 9 to insert along the F direction into the gap between the rear end of the mirror body 1 and the base 2 to increase the gap between the rear end of the mirror body 1 and the base 2. Then, pull the insertion shaft 31 on the adjusting knob 3 out of the insertion hole 12 to remove the adjusting knob 3 and change the adjustment accuracy. Figures 10 to 12 The insertion shaft on the adjustment knob A8 is inserted into the insertion hole 12, and the outer periphery of the eccentric wheel A81 on the adjustment knob A8 abuts against the pad 21. At this time, the replacement of the adjustment knob is completed. During shooting operations, when it is necessary to change the elevation angle adjustment accuracy, it is not necessary to replace the entire vehicle-mounted sight on the firearm. Only the adjustment knob needs to be replaced. It is very convenient to replace the adjustment knobs with different adjustment accuracies. Moreover, after replacing the adjustment knob, it is not necessary to readjust the left and right adjustment knobs on the scope body 1 to adapt to the ballistic characteristics of the firearm, thereby improving the efficiency of shooting operations. The adjustment knob 3 in the vehicle-mounted sight of the present invention has a simple structure and is easy to replace. It can meet the ballistic characteristics of different firearms by conveniently replacing the adjustment knob 3.

[0061] 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 vehicle-mounted sight with a conveniently replaceable adjustment knob, comprising a scope body, a base, and an elastic element, wherein the front end of the scope body is hinged to the base, the elastic element is disposed between the scope body and the base, one end of the elastic element is connected to the scope body, and the other end of the elastic element is connected to the base, the elastic element being used to drive the rear end of the scope body closer to the base, characterized in that, It also includes adjustment knobs, cover plates, and fixing screws. The rear end face of the mirror body has a recessed cavity with an open bottom, and the bottom wall of the recessed cavity has an insertion hole. The base is provided with a pad, which is located at the bottom of the cavity. The front end face of the adjustment knob is provided with a plug shaft, the plug shaft is provided with an eccentric wheel in the circumferential direction, and the outer circumference of the eccentric wheel is provided with an anti-rotation part. The insertion shaft is inserted into the insertion hole, and the outer circumference of the eccentric wheel abuts against the top of the pad. When the anti-rotation part abuts against the side of the pad, the anti-rotation part of the eccentric wheel cannot rotate towards the pad. The cover plate is provided with a U-shaped slot. The cover plate is inserted between the turning part of the adjusting knob and the eccentric wheel. The insertion shaft is accommodated in the U-shaped slot. The cover plate is located on the end face of the rear end of the lens body to cover the cavity. The cover plate and the lens body are detachably connected. The end of the fixing screw passes through the cover plate and is screwed into the end face of the rear end of the lens body. When the adjustment knob needs to be replaced, unscrew the fixing screw, pull the cover plate upwards, and pull the plug shaft on the adjustment knob out of the plug hole to remove the adjustment knob. Insert the plug shaft on the adjustment knob with different adjustment precision into the plug hole and make the outer circumference of the eccentric wheel on the adjustment knob abut against the pad. At this time, the replacement of the adjustment knob is completed.

2. The vehicle-mounted sight according to claim 1, characterized in that, The bottom wall of the cavity is provided with a limiting protrusion, and the end face of the eccentric wheel is provided with a limiting groove that is circumferentially placed around the plug shaft. The starting end and the ending end of the limiting groove are not connected on one side, and the starting end and the ending end of the limiting groove are connected on the other side. The limiting protrusion is accommodated in the limiting groove to limit the rotation angle of the eccentric wheel.

3. The vehicle-mounted sight according to claim 2, characterized in that, The limiting protrusion is a screw, which is screwed into the bottom wall of the cavity and is located below the insertion hole.

4. The vehicle-mounted sight according to claim 2, characterized in that, When the limiting protrusion is accommodated at the beginning end of the limiting groove, the anti-rotation part abuts against the side of the pad, and the distance between the pad and the insertion shaft is at its minimum. When the limiting protrusion is accommodated at the end of the limiting groove, the anti-rotation part abuts against the top of the pad and the distance between the pad and the insertion shaft is at its maximum value.

5. The vehicle-mounted sight according to claim 1, characterized in that, The insertion shaft and the insertion hole are fitted with a clearance, allowing the insertion shaft to rotate freely within the insertion hole.

6. The vehicle-mounted sight according to claim 1, characterized in that, The corner between the top and side of the pad is sloped.

7. The vehicle-mounted sight according to claim 1, characterized in that, It also includes a first washer, wherein the end face of the eccentric wheel near the cover plate is provided with a first annular groove that is arranged around the outer periphery of the plug shaft, the first washer is accommodated in the first annular groove and the first washer is attached to the cover plate.

8. The vehicle-mounted sight according to claim 1, characterized in that, It also includes a second washer, wherein the end face of the eccentric wheel near the bottom wall of the cavity is provided with a second annular groove that is circumferentially placed around the outer periphery of the insertion shaft, the second washer is accommodated in the second annular groove and the second washer is attached to the bottom wall of the cavity.

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