Differentiation regulation module with limiting function

Abstract

The utility model provides a differentiation adjusting module with a limiting function, which comprises a connecting seat, a hand wheel is arranged on the connecting seat, and a hand wheel inner gear ring, a movable outer gear ring, a limiting outer gear ring, an adjusting base, a differentiation gear ring and an adjusting shaft are sequentially embedded in the hand wheel. A limiting ring is arranged between the top of the adjusting shaft and the hand wheel, a limiting screw is arranged on the top of the movable outer gear ring, a base pressing ring is arranged between the adjusting shaft and the connecting base, and an adjusting screw rod is arranged at the bottom of the adjusting shaft. Meanwhile, a radial through hole is formed in the waist portion of the adjusting shaft, and a ball head rod matched with the differentiation gear ring is arranged in the through hole. When the hand wheel inner gear ring is meshed with the limiting outer gear ring, the hand wheel is locked, when the hand wheel is affected by vibration and impact force, rotation of the hand wheel can be effectively prevented, and the product is kept in the existing state.

Description

Technical Field

[0001] The utility model relates to the field of firearm sights, in particular to a reticle adjustment module with a limiting function. Background Art

[0002] The sight is installed on the firearm for aiming and positioning. During the use of the sight, it is necessary to adjust and correct the ballistic trajectory to ensure the coincidence of the aiming point and the impact point. Therefore, when using the sight, it is required that the adjustment process is more convenient, fast and reliable. The traditional reticle adjustment mechanism of the sight is assembled on the mirror body, which has high requirements for processing and technology, delaying the subsequent processes. During maintenance, all parts need to be removed, cleaned and then reassembled. Therefore, the assembly process has high requirements.

[0003] Chinese Patent CN 210464207 U discloses a reticle correction handwheel adjustment mechanism for a sight. An adjustment screw and a positioning gear ring are arranged in the handwheel seat. The positioning gear ring is evenly provided with indexing tooth grooves. A hole is transversely opened near the lower end of the adjustment screw. A steel ball, a limit nail, a spring and a limit block are sequentially installed in the hole. The steel ball cooperates with the indexing tooth grooves of the positioning gear ring. One end of the limit nail is provided with an arc-shaped groove for placing the steel ball, and the other end is sleeved with a spring. The spring is arranged between the limit nail and the limit block. A flat thrust bearing is arranged at the bottom of the adjustment screw. A thrust nail is sleeved in the flat thrust bearing. The thrust nail extends into the lower end of the adjustment screw and is always in contact with the inner diameter tube in the sight. By rotating the adjustment screw to move up and down or left and right in a spiral motion, the thrust nail moves up and down with the adjustment screw without rotation, causing the inner diameter tube to swing up and down or left and right around the fulcrum. The steel ball extends into or withdraws from the indexing tooth grooves of the positioning gear ring under the action of the spring to achieve reticle correction. This module has a fine structure, high requirements for processing technology and assembly technology, and is inconvenient for later maintenance. Summary of the Utility Model

[0004] Aiming at the above problems, the purpose of the utility model is to provide a reticle adjustment module with a simple structure, convenient interchangeability and a limiting function, making the use process of the sight more convenient, fast and reliable.

[0005] To achieve the above purpose, the technical scheme adopted by the utility model is: a reticle adjustment module with a limiting function, including a connection seat, a handwheel is arranged on the connection seat, and a handwheel inner gear ring, a movable outer gear ring, a limiting outer gear ring, an adjustment base, a reticle gear ring and an adjustment shaft are sequentially embedded in the handwheel; a limiting ring is arranged between the top of the adjustment shaft and the handwheel, and a limiting screw is arranged at the top of the movable outer gear ring; a base retaining ring is arranged between the adjustment shaft and the connection seat, and an adjustment screw is arranged at the bottom of the adjustment shaft; a radial through hole is arranged at the waist of the adjustment shaft, and a ball head rod cooperating with the reticle gear ring is arranged in the through hole, and a spring is arranged at the tail end of the ball head rod; the handwheel is connected with the handwheel inner gear ring by a small interference fit, the limiting outer gear ring is connected with the adjustment base by a small interference fit, and the reticle gear ring is connected with the adjustment base by a small interference fit.

[0006] Further, the movable external gear ring is threadedly connected to the adjusting shaft and fixed by dispensing glue, and the adjusting base is threadedly connected to the base retainer ring and fixed by dispensing glue, ensuring that the adjusting shaft only rotates in the adjusting base and does not move up and down.

[0007] The adjusting screw has a waist-shaped groove, and the bottom end of the adjusting shaft is inserted into the waist-shaped groove, with a small clearance fit between the two. When the adjusting shaft rotates, it drives the adjusting screw to rotate and move up and down.

[0008] The limiting ring is threadedly connected to the adjusting shaft and fixed by dispensing glue, and the threaded connection between the limiting screw and the handwheel is fixed by dispensing glue. When the handwheel is lifted upward, the limiting screw and the limiting ring cooperate to limit the upward displacement of the handwheel.

[0009] The limiting external gear ring is below the movable external gear ring. The handwheel internal gear ring, movable external gear ring, limiting external gear ring, and dividing gear ring have the same number of indexing tooth profiles. When the handwheel internal gear ring meshes with the limiting external gear ring, the handwheel is in the locked and limited state. When the handwheel internal gear ring is lifted to disengage from the limiting external gear ring and mesh with the movable external gear ring, the handwheel is in the adjusting state.

[0010] Compared with the prior art, the beneficial effects of the present utility model are as follows: When the handwheel internal gear ring meshes with the limiting external gear ring, the handwheel is locked. When affected by vibration and impact force, it can effectively prevent the handwheel from rotating and keep the product in its existing state. The connection seat provided in the present utility model and the handwheel provided on the connection seat adjust the aiming of the sight by sequentially embedding a handwheel internal gear ring, a movable external gear ring, a limiting external gear ring, an adjusting base, a dividing gear ring, and an adjusting shaft in the handwheel. Its structure is compact, the operation is simple, and it is easy to maintain. Brief Description of the Drawings

[0011] Figure 1 is a sectional view of the present utility model;

[0012] Figure 2 is a schematic diagram of the position of the handwheel in the limiting state of the present utility model;

[0013] Figure 3 is a schematic diagram of the position of the handwheel in the adjusting state of the present utility model;

[0014] Figure 4 is a top view of the present utility model. Detailed Description of the Embodiment

[0015] Refer to Figures 1-4As shown in the figure, a differentiation regulation module with a limit function includes a connecting seat 1. A handwheel 2 is provided on the connecting seat. Inside the handwheel, a handwheel internal gear ring 4, a movable external gear ring 7, a limit external gear ring 5, an adjustment base 3, a differentiation gear ring 13 and an adjustment shaft 8 are sequentially embedded. A limit ring 9 is provided between the top of the adjustment shaft 8 and the handwheel 2. A limit screw 6 is installed at the top of the movable external gear ring on the handwheel 2, and the limit screw 6 is located between the movable external gear ring 7 and the limit ring 9. A base retaining ring 14 is provided between the adjustment shaft 8 and the connecting seat 1, and an adjustment screw 15 is provided at the bottom of the adjustment shaft. A radial through hole is provided at the waist of the adjustment shaft, and a ball head rod 10 that mates with the differentiation gear ring is provided in the through hole. A spring 11 is provided at the tail end of the ball head rod, and a small nut 12 is used to plug the head. The handwheel 2 is connected to the handwheel internal gear ring 4 with a small interference fit. The limit external gear ring 5 is connected to the adjustment base 3 with a small interference fit. The differentiation gear ring 13 is connected to the adjustment base 3 with a small interference fit.

[0016] When the handwheel is lifted and rotated, the handwheel drives the movable external gear ring to rotate, and the movable external gear ring drives the adjustment shaft to rotate. The ball head rod continuously enters or exits the differentiation gear ring under the action of the spring and makes a "click" sound. By the number of clicks, the upward or downward movement amount of the adjustment screw can be known.

[0017] Based on the current conventional design, both the adjustment shaft and the base retaining ring have threads. The movable external gear ring of the adjustment shaft is threadedly connected to the adjustment shaft and fixed with glue. The adjustment base is threadedly connected to the base retaining ring and fixed with glue to ensure that the adjustment shaft only rotates in the adjustment base and does not move up and down.

[0018] In addition, the adjustment screw has a waist-shaped groove, and the bottom end of the adjustment shaft is inserted into the above-mentioned waist-shaped groove, and the two are in a small clearance fit. When the adjustment shaft rotates, it drives the adjustment screw to rotate up and down.

[0019] The limit ring is threadedly connected to the adjustment shaft and fixed with glue. The thread at the mating part of the limit screw and the handwheel is fixed with glue. When the handwheel is lifted upward, the limit screw and the limit ring cooperate to limit the upward displacement amount of the handwheel.

[0020] The limit external gear ring is below the movable external gear ring. The handwheel internal gear ring, the movable external gear ring, the limit external gear ring and the differentiation gear ring have the same number of indexing tooth profiles. When the handwheel internal gear ring meshes with the limit external gear ring, the handwheel is in the locked and limited state. When the handwheel internal gear ring is lifted to disengage from the limit external gear ring and mesh with the movable external gear ring, the handwheel is in the adjustment state.

[0021] Working principle of the utility model: When the handwheel 2 rotates, it drives the internal gear ring 4 of the handwheel to rotate. When the internal gear ring 4 of the handwheel meshes with the limit external gear ring 5, it is in the locked state; when the handwheel is lifted upward, when the internal gear ring 4 of the handwheel meshes with the movable external gear ring 6, it is in the adjustment state. The rotation of the internal gear ring 4 of the handwheel drives the rotation of the movable external gear ring 6, the rotation of the movable external gear ring 6 drives the rotation of the adjustment shaft 8, and the rotation of the adjustment shaft 8 drives the adjustment screw 15 to rotate upward or downward.

[0022] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. For those skilled in the art, various modifications and changes can be made to the present utility model. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model are included in the protection scope of the present utility model.

Claims

1. A differentiation regulation module with a limiting function, characterized in that: It includes a connecting seat, on which a handwheel is provided, in which an inner handwheel gear ring, a movable outer gear ring, a limiting outer gear ring, an adjusting base, a differentiated gear ring and an adjusting shaft are sequentially embedded; a limiting ring is provided between the top of the adjusting shaft and the handwheel, and a limiting screw is provided on the top of the movable outer gear ring; a base pressure ring is provided between the adjusting shaft and the connecting seat, and an adjusting screw is provided at the bottom of the adjusting shaft; a radial through hole is provided at the waist of the adjusting shaft, in which a ball head rod matching the differentiated gear ring is provided, and a spring is provided at the tail end of the ball head rod; the handwheel is connected with the inner handwheel gear ring by a small interference fit, the limiting outer gear ring is connected with the adjusting base by a small interference fit, and the differentiated gear ring is connected with the adjusting base by a small interference fit.

2. The differentiation and adjustment module with a limiting function according to claim 1, characterized in that: The movable outer gear ring is threadedly connected to the adjusting shaft and fixed by glue, and the adjusting base is threadedly connected to the base pressure ring and fixed by glue, ensuring that the adjusting shaft only rotates in the adjusting base and does not move up and down.

3. The differentiation and adjustment module with a limiting function according to claim 1, characterized in that: The adjusting screw has a waist-shaped groove, and the bottom end of the adjusting shaft is inserted into the waist-shaped groove. The two are matched with a small gap. When the adjusting shaft rotates, the adjusting screw is driven to rotate and move up and down.

4. The differentiation and regulation module with a limiting function according to claim 1, characterized in that: The limit ring is threadedly connected to the adjusting shaft and fixed by glue, and the limit screw and the handwheel are threadedly connected by glue and solidified at the matching position. When the handwheel is lifted upward, the limit screw and the limit ring cooperate to limit the upward displacement of the handwheel.

5. The differentiation and adjustment module with a limiting function according to claim 4, characterized in that: The limiting outer gear ring is below the movable outer gear ring, and the handwheel inner gear ring, movable outer gear ring, limiting outer gear ring, and differentiation gear ring have the same number of graduated tooth shapes. When the handwheel inner gear ring is engaged with the limiting outer gear ring, the handwheel is in a locked limiting state. When the handwheel inner gear ring is lifted and disengaged from the limiting outer gear ring and engaged with the movable outer gear ring, the handwheel is in an adjusting state.

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