A three-speed MOA adjustment structure with zero adjustment and locking functions

Abstract

The present invention discloses a three-speed MOA adjustment structure with zero adjustment and locking functions, which relates to the technical field of sights. The present invention includes a handwheel seat, an adjustment handwheel, a sealing pressure ring, a gear shaft, an adjustment screw, an adjustment pin, a sealing pressure ring and a set screw; the adjustment screw is located inside the handwheel seat, the adjustment screw is threadedly connected to the handwheel seat, the lower end of the adjustment screw is provided with an adjustment pin, the lower end of the gear shaft is placed on the inner side of the handwheel seat, a square hole is provided inside the gear shaft, and the upper end of the adjustment screw is set to a square shape. The present invention adopts a multi-structure coordinated design to ensure that the quality of the device is stable and reliable, the operation is convenient and smooth, and it is convenient for users to calibrate the gun and debug during daily use, which greatly saves the user's time. The three-speed MOA adjustment structure with zero adjustment and locking functions fills the gap in the international market, solves many shortcomings in existing product structures, and has a very broad prospect.

Description

Technical Field

[0001] The present invention relates to the technical field of sights, in particular to a three-speed MOA adjustment structure with zero adjustment and locking functions. Background Art

[0002] Daylight riflescopes are the most widely used. Their aiming point is adjusted using the minute of angle (MOA) principle. MOA adjustment is performed separately for vertical and horizontal changes in the aiming point. Both vertical and horizontal MOA adjustments utilize the same mechanism, adjusting the MOA by advancing and retracting the adjustment screw. To facilitate accurate measurement of MOA adjustments, the MOA adjustment mechanism incorporates indexing teeth and corresponding markings on the adjustment wheel.

[0003] After a daylight scope is mounted on a gun, a calibration process involves adjusting the scope's MOA (Moment of Arrival) up and down, as well as left and right, to bring the aiming point into line with the user's desired shooting distance. Later in shooting, the user will adjust the scope's MOA based on actual shooting distance and wind speed. After calibration, the scale on the adjustment wheel is not at zero, making MOA adjustment counting difficult during later use. Therefore, a zero adjustment feature is required to lock the scale at zero to facilitate subsequent MOA adjustment counting. After calibration, the zero point can shift due to accidental contact or vibration, necessitating a locking function after MOA adjustment to prevent this. Zero adjustment and locking functions are common requirements for high-end scopes.

[0004] At present, the zero adjustment and locking functions of the MOA adjustment structure are mainly two-speed. Pressing the adjustment handwheel prevents the adjustment handwheel from rotating through the engagement of the teeth, thereby locking the MOA adjustment. Pulling up the adjustment handwheel allows MOA adjustment. After the gun calibration is completed, the limit screw on the adjustment handwheel must be removed and the adjustment handwheel must be pulled up again to perform zero adjustment. After adjusting to the zero position, the limit screw on the adjustment handwheel must be tightened. Such zero adjustment is very inconvenient, and the existence of the limit screw also causes an unsightly appearance. Summary of the Invention

[0005] The object of the present invention is to provide a three-speed MOA adjustment structure with zero adjustment and locking functions to solve the problems mentioned in the background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions: a three-speed MOA adjustment structure with zero adjustment and locking functions, comprising a handwheel seat, an adjustment handwheel, a first sealing pressure ring, a gear shaft, an adjustment screw, an adjustment pin, a second sealing pressure ring and a second set screw;

[0007] The adjusting screw is located inside the handwheel seat, the adjusting screw is threadedly connected to the handwheel seat, the lower end of the adjusting screw is provided with an adjusting pin, the lower end of the gear shaft is placed on the inner side of the handwheel seat, the interior of the gear shaft is provided with a square hole, the upper end of the adjusting screw is set to a square shape, the upper end of the adjusting screw is located in the square hole provided inside the gear shaft, the adjusting screw is slidably connected to the gear shaft, a set screw 2 is fixed to the middle part of the upper end of the gear shaft, one end of the set screw 2 extends to the inner side of the gear shaft; a sealing pressure ring 2 is sleeved on the outer side of the gear shaft and located on the inner side of the handwheel seat;

[0008] The adjusting handwheel is provided with an inner ring inside, the inner ring of the adjusting handwheel is sleeved on the upper end of the gear shaft, and the outer ring of the adjusting handwheel is sleeved on the handwheel seat; a sealing pressure ring is placed on the upper end of the inner side of the handwheel seat, and the sealing pressure ring is sleeved on the outer side of the inner ring of the adjusting handwheel; the inner wall of the outer ring of the adjusting handwheel is also provided with three V-shaped grooves, and the inner wall of the handwheel seat is evenly provided with three spring-clip structures, and the spring-clip structure includes a cone pin 1 and a spring 1, the cone pin 1 is located on the outer side of the handwheel seat, and the spring 1 is located between the cone pin 1 and the handwheel seat, and the cone pin 1 is buckled with the three V-shaped grooves.

[0009] Preferably, an inner tooth 1 is provided on the inner side of the inner ring of the adjusting hand wheel, and an outer tooth 2 is provided on the outer top of the gear shaft, and the inner tooth 1 is meshed with the outer tooth 2.

[0010] Preferably, the inner side of the outer ring of the adjusting handwheel is provided with inner teeth 2, the outer side of the handwheel seat is provided with outer teeth 3, and the inner teeth 2 are meshed with the outer teeth 3.

[0011] Preferably, a set screw 1, a tapered pin 2, and a spring 2 are further provided inside the handwheel seat. The set screw 1 is fixed to the handwheel seat. The tapered pin 2 is located on the inner side of the handwheel seat and is slidingly connected to the handwheel seat. The spring 2 is located between the tapered pin 2 and the set screw 1. The end of the tapered pin 2 away from the spring 2 is in contact with the outer tooth 2 on the outer side of the gear shaft.

[0012] Preferably, a second sealing ring is fixed to the bottom of the handwheel seat.

[0013] Preferably, a fourth sealing ring is fixed between the first sealing pressure ring and the adjusting hand wheel.

[0014] Preferably, a first sealing ring is fixed between the gear shaft and the handwheel seat.

[0015] Preferably, a third sealing ring is fixed between the gear shaft and the second sealing pressure ring.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] The present invention utilizes a multi-faceted design to ensure stable and reliable quality, smooth operation, and convenient calibration and daily adjustments, significantly saving time. This three-speed MOA adjustment mechanism with zero adjustment and locking functions fills a gap in the international market, addressing many shortcomings of existing product structures and offering a promising future. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0019] Figure 1 It is a cross-sectional view of the locking state structure of the entire present invention;

[0020] Figure 2 It is a cross-sectional view of the adjustment state structure of the entire present invention;

[0021] Figure 3 It is a cross-sectional view of the structure of the present invention in the zero-reset state;

[0022] Figure 4 This is a cross-sectional view of the overall structure of the adjusting hand wheel of the present invention;

[0023] Figure 5 This is a cross-sectional view of the overall structure of the gear shaft of the present invention;

[0024] Figure 6 It is a sectional view of the overall structure of the handwheel seat of the present invention.

[0025] In the figure: 1. Handwheel seat; 2. Adjusting handwheel; 3. Sealing pressure ring 1; 4. Gear shaft; 5. Adjusting screw; 6. Adjusting pin; 7. Sealing pressure ring 2; 8. Taper pin 1; 9. Spring 1; 10. First sealing ring; 11. Second sealing ring; 12. Third sealing ring; 13. Fourth sealing ring; 14. Set screw 1; 15. Set screw 2; 16. Internal tooth 1; 17. Internal tooth 2; 18. Taper pin 2; 19. External tooth 2; 20. Spring 2; 21. External tooth 3. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present invention will be clearly and completely described 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 the embodiments.

[0027] See also Figures 1-6A three-speed MOA adjustment structure with zero adjustment and locking functions includes a handwheel seat 1, an adjusting handwheel 2, a sealing pressure ring 3, a gear shaft 4, an adjusting screw 5, an adjusting pin 6, a sealing pressure ring 7 and a set screw 15;

[0028] A thread is provided at the bottom of the handwheel seat 1, and the handwheel seat 1 is connected to the body of the sight through the thread at the bottom, wherein, in order to ensure the seal between the handwheel seat 1 and the body of the sight, a second sealing ring 11 is fixed to the bottom of the handwheel seat 1; the adjusting screw 5 is located inside the handwheel seat 1, and the adjusting screw 5 is threadedly connected to the handwheel seat 1, and the lower end of the adjusting screw 5 is provided with an adjusting pin 6 to ensure that when the adjusting screw 5 is rotated for adjustment, the internal parts of the sight to be adjusted can be directly pressed by the adjusting pin 6; the lower end of the gear shaft 4 is placed on the inner side of the handwheel seat 1, wherein, in order to ensure the seal between the gear shaft 4 and the handwheel seat 1, a first sealing ring 10 is fixed between the gear shaft 4 and the handwheel seat 1, a square hole is provided inside the gear shaft 4, and the upper end of the adjusting screw 5 is set to a square, and the upper end of the adjusting screw 5 is located at the square hole opened inside the gear shaft 4. The adjusting screw 5 is slidably connected to the gear shaft 4 in the hole. By cooperating with the upper end of the adjusting screw 5 and the square hole inside the gear shaft 4, the adjusting screw 5 can be driven by the gear shaft 4 to rotate and adjust, and it is also ensured that the adjusting screw 5 can only move up and down in the gear shaft 4. A set screw 2 15 is fixed to the middle part of the upper end of the gear shaft 4, and one end of the set screw 2 15 extends to the inside of the gear shaft 4, which is used to limit the retreat of the adjusting screw 5 to ensure the centering balance of the total range during MOA adjustment; a sealing pressure ring 2 7 is sleeved on the outside of the gear shaft 4 and located on the inside of the handwheel seat 1, and the movement of the gear shaft 4 is limited by the sealing pressure ring 2 7, so that the gear shaft 4 can only rotate in the handwheel seat 1; wherein, in order to ensure the seal between the gear shaft 4 and the sealing pressure ring 2 7, a third sealing ring 12 is fixed between the gear shaft 4 and the sealing pressure ring 2 7.

[0029] Specifically, the interior of the handwheel seat 1 is further provided with a set screw 14, a second tapered pin 18, and a second spring 20. The set screw 14 is fixed to the handwheel seat 1, the second tapered pin 18 is located on the inner side of the handwheel seat 1 and is slidably connected to the handwheel seat 1, and the second spring 20 is located between the second tapered pin 18 and the set screw 14. The end of the second tapered pin 18 away from the second spring 20 is in contact with the second outer tooth 19 on the outer side of the gear shaft 4. When the gear shaft 4 is rotated, the second tapered pin 18, pushed by the second spring 20, makes a clicking sound when passing through each tooth on the second outer tooth 19, thereby performing graduation and reminding the operator to count the MOA adjustment.

[0030] Specifically, the adjusting handwheel 2 is provided with an inner ring, which is sleeved on the upper end of the gear shaft 4. The inner ring of the adjusting handwheel 2 is provided with an inner tooth 16, and the outer top of the gear shaft 4 is provided with an outer tooth 2 19. The inner tooth 16 and the outer tooth 2 19 are meshed. The meshing connection between the inner tooth 16 and the outer tooth 2 19 allows the adjusting handwheel 2 to rotate and the gear shaft 4 to rotate, and the adjusting handwheel 2 can also slide up and down.

[0031] The outer ring of the adjusting handwheel 2 is sleeve-connected with the handwheel seat 1, wherein the inner side of the outer ring of the adjusting handwheel 2 is provided with an inner tooth 21, and the outer side of the handwheel seat 1 is provided with an outer tooth 3 21, and the inner tooth 21 is meshed and connected with the outer tooth 3 21; by sliding the adjusting handwheel 2, the inner tooth 21 is meshed with the outer tooth 3 21, and the adjusting handwheel 2 is restricted and cannot be rotated, so that the adjusting handwheel 2 is locked; by sliding the adjusting handwheel 2, the inner tooth 17 is separated from the outer tooth 3 21, thereby losing the restriction on the adjusting handwheel 2, and the adjusting handwheel 2 can be rotated.

[0032] Specifically, in order to ensure the seal between the sealing pressure ring 3 and the adjusting handwheel 2 and the smooth rotation and sliding of the adjusting handwheel 2, a sealing pressure ring 3 is placed on the upper end of the inner side of the handwheel seat 1, and the sealing pressure ring 3 is sleeved on the outer side of the inner ring of the adjusting handwheel 2, and a fourth sealing ring 13 is fixed between the sealing pressure ring 3 and the adjusting handwheel 2; three V-shaped grooves are also provided on the inner wall of the outer ring of the adjusting handwheel 2, and three spring-clip structures are evenly provided on the inner wall of the handwheel seat 1. The spring-clip structure includes a tapered pin 8 and a spring 9. The tapered pin 8 is located on the outer side of the handwheel seat 1, and the spring 9 is located between the tapered pin 8 and the handwheel seat 1. The tapered pin 8 and the three V-shaped grooves are all snap-fitted.

[0033] When the adjusting hand wheel 2 slides up and down on the hand wheel seat 1, the three sets of cone pins 8 in the spring-locking structure will simultaneously enter the V-shaped groove inside the adjusting hand wheel 2 under the push of the spring 9, thereby achieving that the adjusting hand wheel 2 can stay in the third gear position, and the gear position of these three gear positions is clear. Figure 1-Figure 3 The three gear positions shown correspond to the locked state, the adjusted state and the zeroed state respectively.

[0034] Among them, the three V-grooves processed inside the adjusting handwheel 2 have straight surfaces processed at the two ends of the V-grooves. The straight surfaces contact the straight surfaces of the tapered pin 8 to ensure that the adjusting handwheel 2 is limited on the handwheel seat 1, making it difficult to disassemble the entire structure without damaging it.

[0035] Working principle: When making adjustments, Figure 1 As shown, press the adjusting hand wheel 2 to the bottom. At this time, the inner teeth 2 17 on the outer ring of the adjusting hand wheel 2 engage with the outer teeth 3 21 on the hand wheel seat 1 to ensure that the adjusting hand wheel 2 is restricted and cannot rotate to achieve locking. At the same time, the inner teeth 16 on the inner ring of the adjusting hand wheel 2 remain engaged with the outer teeth 2 19 on the gear shaft 4.

[0036] like Figure 2 As shown, pull the adjusting hand wheel 2 upward by one gear, and the inner tooth 2 17 on the outer ring of the adjusting hand wheel 2 will be disengaged from the outer tooth 3 21 on the outside of the hand wheel seat 1, while the inner tooth 16 on the inner ring of the adjusting hand wheel 2 will remain engaged with the outer tooth 2 19 on the gear shaft 4. At this time, rotating the adjusting hand wheel 2 can drive the gear shaft 4 to perform MOA adjustment.

[0037] like Figure 3 As shown, the adjusting hand wheel 2 is then pulled upward by one gear, and the inner teeth 16 and 17 on the inner and outer rings of the adjusting hand wheel 2 are disengaged from the outer teeth 19 on the gear shaft 4 and the outer teeth 3 21 on the hand wheel seat 1. At this time, the adjusting hand wheel 2 can rotate idly to adjust the scale line on the adjusting hand wheel 2 to the zero position. Press the adjusting hand wheel 2 that has been adjusted to the zero position to the bottom to lock the zero position.

[0038] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be included therein. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A three-speed MOA adjustment structure with zero adjustment and locking functions, characterized by: It comprises a hand wheel seat (1), an adjusting hand wheel (2), a sealing pressure ring (3), a gear shaft (4), an adjusting screw (5), an adjusting pin (6), a sealing pressure ring (7) and a set screw (15); The adjusting screw (5) is located inside the handwheel seat (1), and the adjusting screw (5) is threadedly connected to the handwheel seat (1). An adjusting pin (6) is provided at the lower end of the adjusting screw (5). The lower end of the gear shaft (4) is placed on the inner side of the handwheel seat (1). A square hole is provided inside the gear shaft (4). The upper end of the adjusting screw (5) is set to a square shape. The upper end of the adjusting screw (5) is located in the square hole provided inside the gear shaft (4). The adjusting screw (5) is slidably connected to the gear shaft (4). A second set screw (15) is fixed to the middle part of the upper end of the gear shaft (4), and one end of the second set screw (15) extends to the inner side of the gear shaft (4); a second sealing ring (7) is sleeved on the outer side of the gear shaft (4) and located on the inner side of the handwheel seat (1); The adjusting hand wheel (2) is provided with an inner ring inside, the inner ring of the adjusting hand wheel (2) is sleeved on the upper end of the gear shaft (4), and the outer ring of the adjusting hand wheel (2) is sleeved and connected with the hand wheel seat (1); a sealing pressure ring (3) is placed on the upper end of the inner side of the hand wheel seat (1), and the sealing pressure ring (3) is sleeved on the outer side of the inner ring of the adjusting hand wheel (2); the inner wall of the outer ring of the adjusting hand wheel (2) is also provided with three V-shaped grooves, and the inner wall of the hand wheel seat (1) is evenly provided with three spring-clip structures, and the spring-clip structure includes a cone pin (8) and a spring (9), the cone pin (8) is located on the outer side of the hand wheel seat (1), and the spring (9) is located between the cone pin (8) and the hand wheel seat (1), and the cone pin (8) is snap-fitted with the three V-shaped grooves; An inner tooth 1 (16) is provided on the inner side of the inner ring of the adjusting hand wheel (2), and an outer tooth 2 (19) is provided on the outer top of the gear shaft (4), and the inner tooth 1 (16) and the outer tooth 2 (19) are meshed and connected; The inner side of the outer ring of the adjusting hand wheel (2) is provided with inner teeth 2 (17), and the outer side of the hand wheel seat (1) is provided with outer teeth 3 (21), and the inner teeth 2 (17) and the outer teeth 3 (21) are meshed and connected.

2. The three-speed MOA adjustment structure with zero adjustment and locking functions according to claim 1, characterized in that: The interior of the handwheel seat (1) is further provided with a set screw (14), a second taper pin (18), and a second spring (20). The set screw (14) is fixed to the handwheel seat (1). The second taper pin (18) is located on the inner side of the handwheel seat (1) and is in sliding connection with the handwheel seat (1). The second spring (20) is located between the second taper pin (18) and the set screw (14). The end of the second taper pin (18) away from the second spring (20) is in contact with the second outer tooth (19) on the outer side of the gear shaft (4).

3. The three-speed MOA adjustment structure with zero adjustment and locking functions according to claim 1, characterized in that: A second sealing ring (11) is fixed to the bottom of the hand wheel seat (1).

4. The three-speed MOA adjustment structure with zero adjustment and locking functions according to claim 1, characterized in that: A fourth sealing ring (13) is fixed between the sealing pressure ring (3) and the adjusting hand wheel (2).

5. The three-speed MOA adjustment structure with zero adjustment and locking functions according to claim 1, characterized in that: A first sealing ring (10) is fixed between the gear shaft (4) and the hand wheel seat (1).

6. The three-speed MOA adjustment structure with zero adjustment and locking functions according to claim 1, characterized in that: A third sealing ring (12) is fixed between the gear shaft (4) and the second sealing pressure ring (7).

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