Locking device for torsion ring of sighting telescope

Abstract

The utility model relates to the technical field of sighting tools, in particular to a locking device for a torsion ring of a sighting telescope, which comprises a sighting telescope main body, an adjusting component arranged in the sighting telescope main body and a transmission rod fixedly connected with the adjusting component, a locking component arranged on the transmission rod, and a knob structure arranged on the locking component. According to the utility model, the locking assembly is arranged, and the clamping assembly and the limiting teeth on the transverse frame are adopted, so that the rotation of the connected rod can be limited, and when a user performs manual adjustment, the clamping assembly can be separated from the limiting teeth on the transverse frame, and the resistance of the user during rotation and distortion is reduced; in this way, it can be guaranteed that a user can adjust the twisting disc slightly easily without rebounding, it can be guaranteed that the magnification times of the sighting telescope cannot be changed due to vibration and other factors after the twisting disc is loosened, and the practical requirements of the user are met.

Description

Technical Field

[0001] The utility model relates to the technical field of aiming tools, in particular to a twist ring locking device for an aiming scope. Background Art

[0002] A sight, or optical aiming device, is actually a simple telescope consisting of two convex lenses. The imaging focal points of the two lenses coincide with each other, and a graticule is placed in the middle of the focal points of the two convex lenses. In this way, when people see distant targets through the telescope, the graticule line in the middle of the imaging focal point can be pressed on the target, thus playing a aiming role.

[0003] In the prior art, scopes are designed for shock resistance, generally by increasing the torque required for the rotation of the twist disk and reducing the mass of the twist disk itself, so that the inertia of the twist disk itself cannot overcome the torque to drive its rotation during vibration. However, increasing the torque will make it difficult for the user to make small adjustments when twisting the twist disk, and may even cause a small rebound, affecting the accuracy of the scope adjustment. To this end, we propose a scope twist ring locking device to solve the above problem. Utility Model Content

[0004] The utility model aims to solve the problems existing in the prior art and provides a twist ring locking device for a sighting scope.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A sighting scope twist ring locking device comprises a sighting scope body, an adjustment component is arranged in the sighting scope body, and a locking component is located on the sighting scope, and a knob structure is arranged on the locking component;

[0007] The locking assembly includes a shell fixedly connected to the main body of the sight, a cross frame fixedly connected inside the shell, and a connecting rod rotatably connected to the upper end of the cross frame, the lower end of the connecting rod is transmission-connected to the adjustment assembly, and the upper end of the connecting rod is transmission-connected to the knob structure, a clamping assembly is sleeved on the side wall of the lower end of the connecting rod, and the upper end of the clamping assembly and the lower end of the cross frame are fixedly connected with surrounding limiting teeth, and the locking assembly can limit the rotation of the connecting rod by clamping the limiting teeth with each other.

[0008] Preferably, the clamping assembly includes an annular shell fixedly connected to the side wall of the connecting rod, a first annular piston is arranged in the annular shell, a limiting ring is fixedly connected to the upper surface of the first annular piston, the limiting tooth is fixedly connected to the upper surface of the limiting ring, a cross plate is fixedly connected in the annular shell, and a plurality of one-way valves are fixedly arranged on the cross plate, microholes are opened on the one-way valve, a return spring is arranged in the annular shell, and the return spring is arranged below the cross plate, and a second annular piston is arranged on the upper end of the return spring.

[0009] Preferably, the knob structure includes a torsion disk rotatably connected to the housing, a vertical rod is slidably connected to the torsion disk, the upper end of the connecting rod is fixedly connected to the first driven gear and the second driven gear, the vertical rod is fixedly connected to the first driving gear and the second driving gear respectively meshing with the first driven gear and the second driven gear, the upper end of the vertical rod is rotatably connected to the rotating rod via a damping shaft, and a protrusion is fixedly connected to the lower surface of the rotating rod.

[0010] Preferably, the annular shell is also filled with hydraulic oil, and the hydraulic oil is arranged between the first annular piston and the second annular piston.

[0011] Preferably, the twisting disk and the end of the rotating rod away from the damping shaft are both marked with indication marks, and the upper end side wall of the housing is provided with a scale groove.

[0012] Preferably, the distance between the first driven gear and the second driven gear is smaller than the distance between the first driving gear and the second driving gear.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. The utility model, by setting a locking assembly, adopting the clamping assembly and the limiting teeth on the cross frame, can limit the rotation of the connected rod, and when the user makes manual adjustment, the clamping assembly and the limiting teeth on the cross frame can be separated, reducing the resistance when the user rotates and twists, so that it can ensure that the user can make small adjustments to the twisting disk easily and without rebound, and after loosening the twisting disk, it can ensure that the distortion will not cause the magnification of the sight to change due to factors such as vibration, thereby meeting the actual needs of the user;

[0015] 2. The utility model, by setting a knob mechanism, adopts the first driven gear and the second driven gear to cooperate with the first driving gear and the second driving gear, so that the user can make efficient and fast adjustments as well as more accurate small adjustments, thereby improving the efficiency of the user in adjusting the magnification of the sight, and at the same time ensuring the accuracy when adjusting the magnification of the sight, which is particularly suitable for sights with higher magnifications. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1This is a schematic diagram of the overall structure of a twist ring locking device for a sight proposed by the utility model;

[0017] Figure 2 This is a schematic cross-sectional view of a twist ring locking device for a sight proposed by the utility model;

[0018] Figure 3 This is a schematic diagram of the structure of a clamping assembly of a twist ring locking device for a sight proposed by the utility model;

[0019] Figure 4 for Figure 1 Schematic diagram of the enlarged structure at point A in the middle.

[0020] In the figure: 1. sight body; 2. scale groove; 3. sleeve; 4. cross frame; 5. connecting rod; 6. limit tooth; 7. annular shell; 8. first annular piston; 9. limit ring; 10. cross plate; 11. one-way valve; 12. return spring; 13. second annular piston; 14. torsion plate; 15. vertical rod; 16. first driven gear; 17. second driven gear; 18. first drive gear; 19. second drive gear; 20. rotating rod; 21. bump. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0022] Reference Figure 1-4 A sighting scope twist ring locking device comprises a sighting scope body 1, wherein an adjustment component is arranged in the sighting scope body 1, wherein the adjustment component is a sighting scope adjustment structure commonly used in the prior art, and no further elaboration is made here, and further comprises a locking component located on the sighting scope, and a knob structure is arranged on the locking component;

[0023] The locking assembly comprises a sleeve shell 3 fixedly connected to the sighting scope body 1, a cross frame 4 is fixedly connected inside the sleeve shell 3, and a connecting rod 5 is rotatably connected to the upper end of the cross frame 4, the lower end of the connecting rod 5 is transmission-connected to the adjusting assembly, and the upper end of the connecting rod 5 is transmission-connected to the knob structure, a clamping assembly is sleeved on the side wall of the lower end of the connecting rod 5, and the upper end of the clamping assembly and the lower end of the cross frame 4 are both fixedly connected with a surrounding limiting tooth 6, the cross section of the limiting tooth 6 is triangular, and the limiting teeth 6 located at the upper end of the clamping assembly and the lower end of the cross frame 4 are meshed with each other. It should be noted that, since the magnification is often adjusted to an integer or decimal magnification, the limiting teeth 6 are not only used to clamp the connecting rod 5 to prevent it from rotating, but also to ensure that the magnification of the sight after adjustment is an integer or decimal multiple of the magnification, and the locking assembly can limit the rotation of the connecting rod 5 by clamping the limiting teeth 6 with each other;

[0024] Based on the above scheme, the locking assembly utilizes the clamping assembly and the limiting teeth 6 on the lower surface of the cross frame 4, so that the connecting rod 5 will not rotate due to the vibration of the sight, ensuring that the vibration will not affect the magnification of the sight. On the other hand, it can also ensure that after the user uses the knob structure to adjust the magnification of the sight, the sight is exactly at an integer multiple or decimal multiple, which is convenient for the user to perform distance calculations and positioning and other operations.

[0025] Further, the clamping assembly includes an annular shell 7 fixedly connected to the side wall of the connecting rod 5, and the annular shell 7 is sleeved on the side wall of the connecting rod 5 close to the cross frame 4, a first annular piston 8 is arranged in the annular shell 7, the upper surface of the first annular piston 8 is fixedly connected to a limiting ring 9, the limiting teeth 6 are fixedly connected to the upper surface of the limiting ring 9, a transverse plate 10 is fixedly connected in the annular shell 7, and a plurality of one-way valves 11 are fixedly arranged on the transverse plate 10, micropores are opened on the one-way valves 11, wherein the flow area of ​​the one-way valves 11 is larger than the flow area of ​​the micropores, a return spring 12 is arranged in the annular shell 7, and the return spring 12 is arranged below the transverse plate 10, and a second annular piston 13 is arranged on the upper end of the return spring 12;

[0026] More specifically, the annular shell 7 is also filled with hydraulic oil, and the hydraulic oil is disposed between the first annular piston 8 and the second annular piston 13 .

[0027] Based on the above design, in this clamping assembly, two piston rings are used to cooperate with the return spring 12 to control and drive the limit ring 9. When the user uses the knob assembly, the user turns the knob assembly to drive the connecting rod 5 to rotate. At this time, the connecting rod 5 rotates and overcomes the resistance of the limit teeth 6, so that the limit teeth 6 on the limit ring 9 move downward, and then the limit teeth 6 on the lower surface of the cross frame 4 are separated from the limit teeth 6 on the limit ring 9. At this time, the user can easily turn the knob assembly and it is convenient to make more precise adjustments to the sight. On the other hand, when the limit ring 9 moves downward, the hydraulic oil between the first annular piston 8 and the second annular piston 13 passes through the one-way valve 11 to the cross plate 1 0 flows below and keeps the limit ring 9 in this state. Since the micropore flow area set on the one-way valve 11 is small, it takes a long time for the reset spring 12 to drive the second annular piston 13 to move upward. At this time, during the user's adjustment, the resistance formed between the two limit teeth 6 is extremely small, which will not affect the user's adjustment of the sight. After the user's adjustment is completed, the user no longer rotates the connecting rod 5. The reset spring 12 will drive the second annular piston 13 to move upward within a certain period of time. At this time, the hydraulic oil slowly flows upward through the micropores, driving the first annular piston 8 to move upward, thereby clamping the limit teeth 6 at the two places again. In this state, it is difficult for vibration to cause the connecting rod 5 to rotate;

[0028] On the other hand, due to the high density of hydraulic oil, even when encountering a large impact force and a large vibration, the connecting column needs to rotate quickly and overcome the inertia of the hydraulic oil. When the hydraulic oil passes through the one-way valve 11, the vibration is often over and the connecting column does not rotate. Ultimately, the locking device in this solution can more effectively play a shock-proof role.

[0029] Further, the knob structure includes a twisting disk 14 rotatably connected to the housing 3, a vertical rod 15 is slidably connected to the twisting disk 14, the upper end of the connecting rod 5 is fixedly connected to the first driven gear 16 and the second driven gear 17, the vertical rod 15 is fixedly connected to the first driving gear 18 and the second driving gear 19 respectively meshing with the first driven gear 16 and the second driven gear 17, the upper end of the vertical rod 15 is rotatably connected to the rotating rod 20 through the damping shaft, and the lower surface of the rotating rod 20 is fixedly connected to a protrusion 21;

[0030] The spacing between the first driven gear 16 and the second driven gear 17 is smaller than the spacing between the first driving gear 18 and the second driving gear 19, wherein the first driven gear 16 and the second driving gear 19 have the same size and specification, the second driven gear 17 and the first driving gear 18 have the same size and specification, and the number of teeth of the first driving gear 18 is greater than the number of teeth of the second driving gear 19;

[0031] Based on the above design, when the user uses the knob structure to adjust the magnification of the scope, when a large adjustment is made, the rotating rod 20 is rotated to a tilted state, at which time the first driving gear 18 and the first driven gear 16 are in a meshing state, and the second driving gear 19 and the second driven gear 17 are in a separated state. The user rotates the twisting disk 14 in this case. Since the first driving gear 18 has a large number of teeth, the first driven gear 16 needs to rotate several times when the first driving gear 18 rotates one circle, so that the user can more efficiently control the rotation of the connecting rod 5, thereby achieving the adjustment of the scope. The magnification is adjusted. When the user needs to make a more precise adjustment, the user rotates the rotating rod 20 to a nearly horizontal state. At this time, the protrusion 21 abuts against the upper surface of the torsion disk 14 and drives the vertical rod 15 to move upward. At this time, the second driven gear 17 is engaged with the second drive gear 19, and the first drive gear 18 is separated from the first driven gear 16. The user rotates the torsion disk 14 in this case. Since the second drive gear 19 has a small number of teeth, the second drive gear 19 needs to rotate several circles to drive the second driven gear 17 to rotate one circle, thereby achieving a more precise magnification adjustment.

[0032] Furthermore, the twisting disk 14 and the rotating rod 20 are both painted with indicator marks on the end away from the damping shaft, and the upper side wall of the shell 3 is provided with a scale groove 2. In this design, the indicator mark and the scale groove 2 are used to facilitate the user to intuitively see the adjustment range, and by performing (zeroing the sight) calibration after use, the adjustment ratio can be confirmed according to the adjustment range.

[0033] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A torque ring locking device for a sight, comprising a sight body (1), wherein an adjustment component is arranged in the sight body (1), characterized in that: It also includes a locking assembly located on the sight, and a knob structure is provided on the locking assembly; The locking assembly comprises a casing (3) fixedly connected to a main body of the scope (1), a cross frame (4) fixedly connected inside the casing (3), and a connecting rod (5) rotatably connected to the upper end of the cross frame (4), the lower end of the connecting rod (5) being transmission-connected to the adjustment assembly, and the upper end of the connecting rod (5) being transmission-connected to the knob structure, a clamping assembly is sleeved on the side wall of the lower end of the connecting rod (5), and the upper end of the clamping assembly and the lower end of the cross frame (4) are both fixedly connected to surrounding limiting teeth (6), and the locking assembly can limit the rotation of the connecting rod (5) by clamping the limiting teeth (6) with each other.

2. A sight twist ring locking device according to claim 1, characterized in that: The clamping assembly comprises an annular shell (7) fixedly connected to the side wall of the connecting rod (5), a first annular piston (8) is arranged in the annular shell (7), the upper surface of the first annular piston (8) is fixedly connected to a limiting ring (9), the limiting teeth (6) are fixedly connected to the upper surface of the limiting ring (9), a transverse plate (10) is fixedly connected in the annular shell (7), and a plurality of one-way valves (11) are fixedly arranged on the transverse plate (10), micropores are provided on the one-way valves (11), a reset spring (12) is arranged in the annular shell (7), and the reset spring (12) is arranged below the transverse plate (10), and a second annular piston (13) is arranged at the upper end of the reset spring (12).

3. A sighting scope twist ring locking device according to claim 1, characterized in that: The knob structure comprises a torsion disk (14) rotatably connected to the housing (3); a vertical rod (15) is slidably connected to the torsion disk (14); the upper end of the connecting rod (5) is fixedly connected to a first driven gear (16) and a second driven gear (17); the vertical rod (15) is fixedly connected to a first driving gear (18) and a second driving gear (19) respectively meshing with the first driven gear (16) and the second driven gear (17); the upper end of the vertical rod (15) is rotatably connected to a rotating rod (20) via a damping shaft, and a protrusion (21) is fixedly connected to the lower surface of the rotating rod (20).

4. A sight twist ring locking device according to claim 2, characterized in that: The annular shell (7) is also filled with hydraulic oil, and the hydraulic oil is arranged between the first annular piston (8) and the second annular piston (13).

5. A sighting scope twist ring locking device according to claim 3, characterized in that: The twisting disk (14) and the rotating rod (20) are both marked with indication marks on one end away from the damping rotating shaft, and the upper end side wall of the casing (3) is provided with a scale groove (2).

6. A sighting scope twist ring locking device according to claim 3, characterized in that: The distance between the first driven gear (16) and the second driven gear (17) is smaller than the distance between the first driving gear (18) and the second driving gear (19).

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