1. A positioning and adjusting mechanism for a prism group of a sighting telescope is characterized by comprising a mirror tube, a prism pressing plate and a prism gasket, wherein the prism group comprises a roof prism and a half-pentaprism group, and the thickness surface of the prism group is matched with two surfaces of an open slot of the mirror tube; the end face and the side face of the roof prism are positioned on the mirror tube, the thickness surface of the prism gasket is attached to the roof prism, the side face is attached to the oblique angle of the mirror tube, the inclined plane of the half-pentaprism group is attached to the thickness surface of the prism gasket, the arc surface is attached to the mirror tube, the prism pressing plate compresses the prism group along the front-back direction, the mirror tube is provided with a supporting spherical surface and an adjusting spherical surface, the mirror tube is installed on a sighting telescope body through the supporting spherical surface, the adjusting mechanism is arranged at the adjusting spherical surface, one end of the prism group is fixed on the telescope body by the adjusting mechanism and can rotate along any direction, the dividing plate is glued on the half-pentaprism, and the level or the verticality of a dividing line is kept.

2. The aiming mirror prism group positioning and adjusting mechanism as claimed in claim 1, further comprising an optical fiber fixing frame fixed on the prism pressing plate, wherein the optical fiber is fixed in the opening small hole of the optical fiber fixing frame.

3. The aiming prism group positioning and adjusting mechanism of claim 1 or 2, wherein the end positioning surface of the roof prism is provided with a degassing groove.

4. The aiming mirror prism group positioning and adjusting mechanism as claimed in claim 1 or 2, wherein a prism pad is arranged between the prism pressure plate and the prism group.

5. The aiming mirror prism group positioning and adjusting mechanism as claimed in claim 1 or 2, wherein the prism pressure plate is provided with a light blocking structure.

6. The aiming prism assembly positioning adjustment mechanism of claim 1 or 2, wherein a sawtooth-shaped groove is arranged in the lens tube.

7. The aiming mirror prism group positioning and adjusting mechanism as claimed in claim 1 or 2, wherein threaded holes for mounting prism pre-tightening screws are formed in two sides of the supporting spherical surface, and the roof prism and the half-pentaprism are tightly pressed by the pre-tightening screws after being positioned on the mirror tube.

8. The aiming mirror prism group positioning and adjusting mechanism as claimed in claim 1 or 2, wherein glue coating holes are arranged on two sides of the supporting spherical surface, and the screw mounting holes of the optical fiber fixing frame are kidney-shaped grooves.

9. The aiming mirror prism group positioning adjustment mechanism as claimed in claim 1 or 2, wherein the prism pressing plate presses the prism group in the front-rear direction by the prism pressing screw.

10. The sighting telescope prism group positioning adjustment mechanism according to claim 1 or 2, wherein the adjustment spherical surface is located between the mirror tube supporting spherical surface and the reticle, and an amount of movement of the reticle center is smaller than an adjustment amount of the adjustment spherical surface.

Background

At present, the image rotating structure of the optical sighting telescope mainly has two forms of spherical lens image rotating and prism image rotating, and the prism image rotating has the advantages of short optical system length, compact sighting telescope structure and the like compared with the spherical lens image rotating, has obvious advantages in the aspect of light firearms such as automatic rifles and the like, and is applied more and more widely. The optical sighting telescope is arranged on a gun and needs to bear impact forces of different degrees in work, and the prism group has the defects of impact intolerance, low stability, difficulty in assembly, low adjustment precision of a division center and the like, so that inconvenience is brought to a user.

Disclosure of Invention

The invention aims to solve the technical problem of providing a positioning and adjusting mechanism of a prism group of a sighting telescope, which has the advantages of high positioning precision, reliable compression, easy assembly and calibration and high adjusting precision.

The technical scheme adopted by the invention for solving the technical problems is as follows: the positioning and adjusting mechanism of the prism group of the sighting telescope comprises a telescope tube, a prism pressing plate and a prism gasket, wherein the prism group comprises a roof prism and a half-pentaprism group, and the thickness surface of the prism group is matched with the two surfaces of an opening groove of the telescope tube; the end face and the side face of the roof prism are positioned on the mirror tube, the thickness surface of the prism gasket is attached to the roof prism, the side face is attached to the oblique angle of the mirror tube, the inclined plane of the half-pentaprism group is attached to the thickness surface of the prism gasket, the arc surface is attached to the mirror tube, the prism pressing plate compresses the prism group along the front-back direction, a supporting spherical surface and an adjusting spherical surface are arranged on the mirror tube, the mirror tube is installed on a sighting mirror body through the supporting spherical surface, an adjusting mechanism is arranged at the adjusting spherical surface, one end of the prism group is fixed on the mirror body by the adjusting mechanism and can rotate along any direction, and a customer can adjust the sighting center position of the reticle according to. The reticle is glued on the half-pentaprism and maintains the level or perpendicularity of the reticle. The uncoated reflection film area of the reflector is aligned with the aiming point of the dividing triangle and then glued on the scribing surface of the dividing plate.

According to the technical scheme, the optical fiber fixing frame is further included and fixed on the prism pressing plate, and the optical fibers are fixed in the small holes of the opening of the optical fiber fixing frame. And light is guided and illuminated for the quick aiming part of the reticle.

According to the technical scheme, the positioning surface at the end part of the ridge prism is provided with the air elimination groove. The working surface of the end part of the roof prism is prevented from being damaged.

According to the technical scheme, a prism protection pad is arranged between the prism pressing plate and the prism group. The prism is prevented from being damaged during compression.

According to the technical scheme, the light blocking structure is arranged on the prism pressing plate. Stray light outside the field of view is prevented from entering the field of view.

According to the technical scheme, the sawtooth-shaped groove is arranged in the lens tube. Stray light in a field of view is eliminated by using a diffuse reflection principle.

According to the technical scheme, threaded holes for installing prism pre-tightening screws are formed in two sides of the supporting spherical surface, and the roof prism and the half-pentaprism are tightly pressed by the pre-tightening screws after being positioned on the mirror tube.

According to the technical scheme, the two sides of the supporting spherical surface are provided with glue coating holes. And after the prism is installed and adjusted, glue is poured into the glue coating holes to ensure that the prism is fixed. The screw mounting hole of the optical fiber fixing frame is a kidney-shaped groove. When the optical fiber fixing frame is installed, the position of the optical fiber fixing frame is adjusted, so that the optical fiber light guide illumination is quickly aimed at the position of the reticle.

According to the technical scheme, the prism pressing plate presses the prism group along the front and back directions through the prism pressing screw.

According to the technical scheme, the adjusting spherical surface is positioned between the lens tube supporting spherical surface and the reticle, and the moving amount of the reticle center is smaller than the adjusting amount of the adjusting spherical surface. And high division center adjustment precision can be realized.

The invention has the following beneficial effects: the prism group positioning and adjusting mechanism can realize the installation positioning and adjustment of the prism group, can be used for adjusting the optical system of the sighting device when being installed on the sighting device, can also be used for assembling various sighting devices, and has the advantages of high positioning precision, reliable compression, easy installation and calibration and high adjusting precision.

Drawings

The invention will be further described with reference to the accompanying drawings and examples, in which:

FIG. 1 is an exploded view of a positioning adjustment mechanism for a prism set of a sighting telescope according to an embodiment of the present invention;

FIG. 2 is a first assembly view of a positioning adjustment mechanism for a prism set of a sighting telescope according to an embodiment of the present invention;

FIG. 3 is a second assembly view of a positioning adjustment mechanism for a prism set of a sighting telescope according to an embodiment of the present invention;

FIG. 4 is a third assembly view of a positioning adjustment mechanism for a prism set of a sighting telescope according to an embodiment of the present invention;

fig. 5 is a schematic view of a first assembly of a half-pentaprism set of a sighting telescope prism set according to an embodiment of the invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

As shown in fig. 1, an embodiment of the present invention provides a positioning adjustment mechanism for a prism group of a sighting telescope, including a mirror tube 17, a prism pressure plate 18, and a prism gasket 16, where the prism group includes a roof prism and a half-pentaprism group, and a thickness surface of the prism group is matched with two surfaces of an opening slot of the mirror tube; the roof prism 15 is fixed on the mirror tube through two positioning surfaces, namely a first positioning surface 1 and a second positioning surface 2; the thickness surface of the prism gasket is attached to the ridge prism, and the end surface of the prism gasket is attached to the oblique angle of the mirror tube, as shown by a lead III 3; as shown in fig. 5, the reticle 10 is glued on the half pentaprism 11 according to the relative position size, and the level or verticality of the reticle is kept, the uncoated reflection film area of the outer surface of the reflector 9 is aligned with the reticle triangular aiming point to the center, so that the natural light guided by the optical fiber penetrates through the uncoated reflection film area, the triangular aiming point of the reticle is illuminated, the inner surface of the coated reflector is glued with the reticle surface of the reticle, and the incident light is totally reflected to human eyes on the surface a of fig. 3; the inclined plane of the half pentaprism group is attached to the thickness surface of the prism gasket, and the arc surface of the half pentaprism group is attached to the lens tube, as shown in lead four 4. The prism pressing plate 6 presses the prism group in the front-back direction through the prism pressing screw 5. The lens tube is provided with 2 spherical structures, for supporting the spherical surface and adjusting the spherical surface, the lens tube is arranged on the lens body of the sighting telescope through the supporting spherical surface, the adjusting spherical surface is provided with an adjusting mechanism, and one end of the prism group is fixed on the lens body by the adjusting mechanism and can rotate along any direction. The client can adjust the reticle aiming center position according to the requirement. The optical fiber fixing frame is fixed on the prism pressing plate, and the optical fiber is fixed in the small opening hole of the optical fiber fixing frame. And light is guided and illuminated for the quick aiming part of the reticle. The adjusting spherical surface 14 is positioned between the lens tube supporting spherical surface 12 and the reticle, the moving amount of the reticle center is smaller than the adjusting amount of the adjusting spherical surface, and higher reticle center adjusting precision can be realized. After assembly is completed, as shown in fig. 2, 3 and 4. The positioning surface of the end part of the ridge prism is provided with a degassing groove, a prism protection pad 8 is arranged between the prism pressing plate and the prism group, the prism pressing plate is provided with a light blocking structure, a sawtooth-shaped groove is arranged in the prism tube, and stray light in a view field is eliminated by using the diffuse reflection principle. And threaded holes for installing prism pre-tightening screws 13 are formed in two sides of the supporting spherical surface, and the roof prism and the half-pentaprism are tightly pressed by the pre-tightening screws after being positioned on the mirror tube. Glue coating holes are arranged on two sides of the supporting spherical surface. And after the prism is installed and adjusted, glue is poured into the glue coating holes to ensure that the prism is fixed. When the optical fiber fixing frame is installed, the position of the optical fiber fixing frame is adjusted, so that the optical fiber light guide illumination is quickly aimed at the position of the reticle.

It will be understood that modifications and variations can be made by persons skilled in the art in light of the above teachings and all such modifications and variations are intended to be included within the scope of the invention as defined in the appended claims.