CN114087921B

CN114087921B - Buffering protection type sighting telescope with airflow guiding function

Info

Publication number: CN114087921B
Application number: CN202111201777.0A
Authority: CN
Inventors: 王志峰
Original assignee: Jinhua Top Optical Instrument Co ltd
Current assignee: Jinhua Top Optical Instrument Co ltd
Priority date: 2021-10-15
Filing date: 2021-10-15
Publication date: 2023-04-21
Anticipated expiration: 2041-10-15
Also published as: CN114087921A

Abstract

The invention discloses a buffer protection type sighting telescope with an airflow guiding function, which comprises an objective lens assembly, an adjusting lens assembly, an eyepiece lens assembly and a protective cover assembly, wherein the objective lens assembly is fixedly connected with the adjusting lens assembly, one end, far away from the objective lens assembly, of the adjusting lens assembly is fixedly connected with the eyepiece lens assembly, and the protective cover assembly is fixedly connected with the objective lens assembly and the eyepiece lens assembly. When the bullet is shot, a part of recoil energy is transferred to the upper reset spring and the lower reset spring to accumulate with elastic potential energy, a part of recoil energy is converted into kinetic energy of gas, and the contact area between the protection ring and eyes of a user is increased by utilizing the compression of the inner corrugated pipe and the outer corrugated pipe, so that the purpose of protecting the eyes of the user is achieved. According to the objective lens protective cover, the air flow is guided and separated, the sand and stone are divided in density, impact of the sand and stone with high density on the surface of the objective lens is avoided, and the service life of the sighting telescope is prolonged.

Description

Buffering protection type sighting telescope with airflow guiding function

Technical Field

The invention relates to the technical field of sighting telescope, in particular to a buffering protection sighting telescope with an airflow guiding function.

Background

The sighting telescope is an optical auxiliary sighting device, and has the main functions of using an optical lens for imaging, overlapping a target image and a sighting line on the same focusing plane, and not affecting a sighting point even if eyes are slightly deviated. In general, an optical sighting telescope can amplify an image multiple and has no magnification, and the sighting telescope is mainly divided into three categories:telescope type sighting telescope、Collimation type Sighting telescope、Reflection sighting telescopeAmong these, telescopic and reflex sights are popular, and these two types of sights are mainly used in daytime and are therefore also called white sights. The sighting telescope usually needs to calibrate the impact point in the use process, and the conventional sighting telescope calibration method is to adjust the adjusting lens group, so that the position of the adjusting lens group is frequently changed, on one hand, the precision of the sighting telescope is easily reduced, and on the other hand, the adjusting lens group is easily damaged. The traditional sighting telescope lacks effective air flow guiding and protecting measures, in the use process, the objective lens is easily scratched by external sand and stone, and when the gun is opened, the recoil is easy to cause larger impact on eyes of a user, so that the eyes of the user are damaged.

Disclosure of Invention

The present invention is directed to a buffer protection type sighting telescope with airflow guiding function, so as to solve the above-mentioned problems in the prior art.

In order to solve the technical problems, the invention provides the following technical scheme: the utility model provides an attached air current direction function's buffering protection type gun sight, including objective subassembly, adjustment mirror subassembly, eyepiece subassembly, visor subassembly, objective subassembly and adjustment mirror subassembly fastening connection, the one end and the eyepiece subassembly fastening connection of objective subassembly are kept away from to adjustment mirror subassembly, visor subassembly and objective subassembly, eyepiece subassembly fastening connection, visor subassembly includes eyepiece visor, objective visor, eyepiece visor subassembly is kept away from adjustment mirror subassembly's one end fastening connection, objective visor and objective subassembly are kept away from adjustment mirror subassembly's one end fastening connection, visor subassembly still includes the apron, the apron is detachable, the apron has two, one apron is installed and is kept away from objective subassembly's one end at the objective visor, another apron is installed and is kept away from eyepiece subassembly's one end at the eyepiece visor. The objective lens assembly gathers light into the sighting telescope, the adjusting lens assembly corrects the image presented by the objective lens into a correct direction by reversing the objective lens from top to bottom and correcting the image from left to right, the eyepiece assembly changes the gathered light back into parallel light so that the eyes of a person can observe smoothly, and the protective cover assembly protects the sighting telescope and the user. The calibration component can realize the movement of the center position in the sighting telescope through the correction of the alignment star pointer, avoid the movement of the adjustment lens group, and ensure that the sighting telescope still maintains high accuracy in the process of correcting for a plurality of times. When the bullet is shot, a part of recoil energy is transferred to the upper reset spring and the lower reset spring to accumulate with elastic potential energy, a part of recoil energy is converted into kinetic energy of gas, and the contact area between the protection ring and eyes of a user is increased by utilizing the compression of the inner corrugated pipe and the outer corrugated pipe, so that the purpose of protecting the eyes of the user is achieved. According to the objective lens protective cover, the air flow is guided and separated, the sand and stone are divided in density, impact of the sand and stone with high density on the surface of the objective lens is avoided, and the service life of the sighting telescope is prolonged.

Further, the objective lens assembly comprises a light receiving cylinder, an object lens and an aperture, the light receiving cylinder is fixedly connected with the adjusting lens assembly, the object lens and the aperture are installed inside the light receiving cylinder, the objective lens is installed at one end, close to the adjusting lens assembly, inside the light receiving cylinder, and the aperture is installed at one end, far away from the adjusting lens assembly, inside the light receiving cylinder. The object lens is mainly responsible for gathering light to the gun sight inside, and the light ring is adjusted the light quantity of intaking, guarantees that the inside luminance of receipts light section of thick bamboo can be in suitable state. When the external environment changes, the user can actively adjust the optical ring until the internal view of the sighting telescope seen by the user is in the optimal brightness state. According to the invention, the sighting telescope can adapt to combat environments in different weather.

Further, the adjusting lens assembly comprises a calibrating component, an adjusting lens group, an objective connecting pipe and an eyepiece connecting pipe, one end of the adjusting lens group is fixedly connected with the objective connecting pipe, the other end of the adjusting lens group is fixedly connected with the eyepiece connecting pipe, the objective connecting pipe is far away from one end of the adjusting lens group and is fixedly connected with the objective assembly, the eyepiece connecting pipe is far away from one end of the adjusting lens group and is fixedly connected with the eyepiece assembly, the calibrating component is arranged on the eyepiece connecting pipe, a plurality of fins are arranged on the inner walls of the objective connecting pipe and the eyepiece connecting pipe, and the fins are different in size. The adjusting lens group is mainly responsible for correcting the image presented by the objective lens into a correct direction from upside down and left and right opposite directions, and the calibration component can correct the alignment star according to wind deflection and distance so as to enable the alignment star to coincide with the impact point. According to the invention, the lengths of the fins arranged on the inner walls of the objective lens connecting pipe and the eyepiece connecting pipe are smaller, the view field inside the lens barrel is not influenced, and when the sighting telescope vibrates, the fins with different sizes can enable the resistance born by gases in different areas inside the lens barrel to be different, so that the vibration frequencies of the areas where the different fins are positioned are different, and the situation that the sighting telescope resonates is avoided.

Further, the calibration part includes first knob, the second knob, first pointer, be provided with different bolts on first knob, the second knob, the bolt respectively with first knob, be provided with the screw hole on the eyepiece connecting pipe, the one end that first knob, second knob were kept away from to the bolt stretches into threaded hole, first pointer, second pointer central point put fastening connection has the transparent plate, the transparent plate that first pointer connects and the bolt-up connection of installing on the first knob, the transparent plate that second pointer connects and the bolt-up connection of installing on the second knob. In general, when the sighting telescope is calibrated, wind deflection calibration and gravity drop calibration can be realized by changing the adjusting lens group, but the accuracy of the sighting telescope is easily influenced by changing the position of the adjusting lens group.

Further, the eyepiece subassembly includes eyepiece lens, eyepiece tube, and the eyepiece lens is installed inside the eyepiece tube, and the cross-sectional shape of eyepiece tube wall face is right trapezoid, and the one end that the eyepiece tube was provided with vertical face and visor subassembly fastening connection, the one end that the eyepiece tube was provided with the inclined plane and the one end fastening connection that the eyepiece connecting pipe kept away from the adjustment lens group. The main function of the eyepiece lens is to change the collected light into parallel light so that the eyes of a person can observe smoothly, and the inclined surface of the eyepiece lens barrel can generate a certain guiding effect on wind blown to the eyepiece lens barrel, so that external air flow is prevented from directly blowing the eyes of the user, and the protection effect on the eyes is realized.

Further, eyepiece visor includes solid fixed ring, the protection ring, extension part, gu the one end fastening connection that the eyepiece connecting pipe was kept away from to gu fixed ring and eye tube, gu the one end and the protection ring fastening connection that the eye tube was kept away from to solid fixed ring, the protection ring includes interior bellows, outer bellows, the rubber ring, there are two in the bellows, outer bellows both ends respectively with two rubber ring fastening connection, outer bellows surface evenly is provided with a plurality of air vent, the inside annular cavity that forms of protection ring, annular cavity inside is provided with a plurality of extension part, extension part includes the articulated rod, lower articulated rod, the go up reset spring, lower reset spring, go up the articulated rod has two, two last articulated rod one end respectively with two rubber rings lean on outer lane positions to articulate, two last articulated rod other ends are articulated each other, the one end and the outer bellows of articulated rod of two last articulated rod are articulated, the intermediate position and the one end fastening connection of last reset spring, the one end and the connecting ring fastening connection of last reset spring of last articulated rod, two lower articulated rod one end is articulated rod and two rubber ring positions are leaned on the position to articulated rod respectively, two lower articulated rod one end and the other end fastening connection of two articulated rod is kept away from down the articulated rod, the articulated rod is connected with the lower articulated rod. In order to protect eyes of a user at the moment of gun opening, the invention designs an eyepiece protective cover, under a normal state, an upper hinge rod and a lower hinge rod are in an open state under the pulling of an upper reset spring and a lower reset spring, the lengths of an inner corrugated pipe and an outer corrugated pipe are supported to be maximum, and external air enters the inside of an annular cavity through an air vent arranged on the surface of the outer corrugated pipe. At the moment of gun opening, huge recoil can oppress the protection ring, go up the articulated lever, lower articulated lever can pull upper reset spring, lower reset spring, recoil energy partly can shift to upper reset spring, lower reset spring is last to store with elastic potential energy, go up the articulated lever, lower articulated lever's contained angle can shrink, interior bellows, the length of outer bellows also can reduce, annular cavity inside gas can follow the vent department and discharge, a portion of recoil energy converts the kinetic energy of gas, and go up the articulated lever, the contained angle shrink of articulated lever down can drive interior bellows, outer bellows is to inner circle and outer lane tensile, the area of contact of protection ring and user eye can increase, thereby can be better with the residual energy of recoil dismantlement.

Further, the objective lens protective cover comprises a protective tube, a spiral groove and a flow hole, wherein the protective tube and the light receiving tube are fixedly connected with one end of the adjusting lens assembly, the spiral groove is formed in the inner ring side wall of the protective tube, the arc-shaped protrusion is formed in the outer ring side wall of the protective tube, a plurality of flow holes are uniformly formed in the spiral groove, and the flow holes are communicated with the inner wall surface and the outer wall surface of the protective tube. The eyepiece protecting cover and the objective protecting cover are both provided with the cover plate, and when the eyepiece protecting cover and the objective protecting cover are not used, the cover plate can be used for sealing the eyepiece protecting cover and the objective protecting cover, and when the eyepiece protecting cover and the objective protecting cover are used, the cover plate is removed. When the lens is normally used, the air flow can carry sand and stone to blow to the surface of the objective lens, when the air flow passes through the protecting pipe, the spiral groove in the protecting pipe can generate a certain guiding effect on the air flow, the air flow close to the inner wall of the protecting pipe can be subjected to resistance to change the direction, the air flow close to the inner wall of the protecting pipe flows along the spiral groove, meanwhile, the air flow close to the outer wall of the protecting pipe can also be reduced to a certain extent, the air flow close to the outer wall of the protecting pipe flows through the arc-shaped protrusion, the flow speed can be increased, the pressure difference can be caused by the flow speed difference of the air flow at the inner side and the outer side of the protecting pipe, the air flow at the inner side of the protecting pipe can flow outwards through the flow hole, when the air flow close to the inner wall of the protecting pipe partially flows into the outer side of the protecting pipe from the flow hole, the pressure difference can be generated between the air flow inside the protecting pipe and the air flow close to the inner wall of the protecting pipe, the trend of the air flow towards the inner wall of the protecting pipe can be caused by the guiding effect of the spiral groove, the air flow inside the protecting pipe can also rotate, the air flow close to the protecting pipe can be caused by the flow trend and the rotation of the air flow of the inner side of the protecting pipe, under the combined effect of the flowing trend and the rotation force, and the air flow at the high density sand stone can be finally discharged from the flow through the flow hole, and the outer side, and the air flow velocity can be conveyed to the surface, and the object, when the object, and the object lens, has less damage to the object. According to the invention, the air flow is guided and separated, and the sand and stone are subjected to density division, so that impact of the sand and stone with high density on the surface of the objective lens is avoided, and the service life of the sighting telescope is prolonged.

Compared with the prior art, the invention has the following beneficial effects: the calibration component can realize the movement of the center position in the sighting telescope through the correction of the alignment star pointer, avoid the movement of the adjustment lens group, and ensure that the sighting telescope still maintains high accuracy in the process of correcting for a plurality of times. When the bullet is shot, a part of recoil energy is transferred to the upper reset spring and the lower reset spring to accumulate with elastic potential energy, a part of recoil energy is converted into kinetic energy of gas, and the contact area between the protection ring and eyes of a user is increased by utilizing the compression of the inner corrugated pipe and the outer corrugated pipe, so that the purpose of protecting the eyes of the user is achieved. According to the objective lens protective cover, the air flow is guided and separated, the sand and stone are divided in density, impact of the sand and stone with high density on the surface of the objective lens is avoided, and the service life of the sighting telescope is prolonged.

Drawings

The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate the invention and together with the embodiments of the invention, serve to explain the invention. In the drawings:

FIG. 1 is a perspective view of the overall structure of the present invention;

FIG. 2 is a front elevational view of the overall structure of the present invention;

FIG. 3 isbase:Sub>A cross-sectional view A-A of the present invention;

FIG. 4 is a cross-sectional view of the internal structure of the eyepiece assembly and eyepiece cover of the present invention;

FIG. 5 is an enlarged view B of a portion of the present invention;

FIG. 6 is a cross-sectional view of the internal structure of the objective lens assembly and objective lens protective cover of the present invention;

FIG. 7 is an enlarged partial view C of the present invention;

in the figure: 1-objective lens assembly, 11-light receiving cylinder, 12-object lens, 13-aperture, 2-adjusting lens assembly, 21-alignment part, 211-first knob, 212-second knob, 213-first pointer, 214-second pointer, 22-adjusting lens group, 23-objective lens connecting tube, 24-eyepiece connecting tube, 3-eyepiece assembly, 31-eye lens, 32-eye tube, 4-protective cover assembly, 41-eyepiece protective cover, 411-fixing ring, 412-protective ring, 4121-inner bellows, 4122-outer bellows, 4123-rubber ring, 414-extension part, 4141-upper hinge lever, 4142-lower hinge lever, 4143-connecting ring, 42-objective lens protective cover, 421-protective tube, 422-spiral groove, 423-flow hole.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

Referring to fig. 1-7, the present invention provides the following technical solutions:

as shown in figures 1 and 2, the buffering protection type sighting telescope with airflow guiding function comprises an objective lens assembly 1, an adjusting lens assembly 2, an eyepiece lens assembly 3 and a protection cover assembly 4, wherein the objective lens assembly 1 is in fastening connection with the adjusting lens assembly 2, one end of the adjusting lens assembly 2, which is far away from the objective lens assembly 1, is in fastening connection with the eyepiece lens assembly 3, the protection cover assembly 4 comprises an eyepiece lens protection cover 41 and an objective lens protection cover 42, the eyepiece lens protection cover 41 is in fastening connection with one end of the eyepiece lens assembly 3, which is far away from the adjusting lens assembly 2, the objective lens protection cover 42 is in fastening connection with one end of the objective lens assembly 1, which is far away from the adjusting lens assembly 2, the protection cover assembly 4 further comprises two cover plates, one cover plate is installed at one end of the objective lens protection cover 42, which is far away from the objective lens assembly 1, and the other cover plate is installed at one end of the eyepiece lens protection cover 41, which is far away from the eyepiece lens assembly 3. The objective lens assembly gathers light into the sighting telescope, the adjusting lens assembly corrects the image presented by the object lens 12 into a correct direction from upside down and left and right opposite directions, the eyepiece assembly changes the gathered light back into parallel light so that the eyes of a person can observe smoothly, and the protecting cover assembly protects the sighting telescope and the user. The calibration component 21 of the invention can realize the movement of the center position in the sighting telescope through the correction of the star pointer, thereby avoiding the movement of the adjustment lens group 22 and ensuring that the sighting telescope still maintains high accuracy in the process of correcting for a plurality of times. When the bullet is fired, a part of recoil energy is transferred to the upper reset spring and the lower reset spring to accumulate in elastic potential energy, a part of recoil energy is converted into kinetic energy of gas, and the contact area between the protection ring 412 and eyes of a user is increased by utilizing the compression of the inner corrugated tube 4121 and the outer corrugated tube 4122, so that the purpose of protecting eyes of the user is achieved. According to the objective lens protective cover 42, the air flow is guided and separated, so that the sand and stones are divided in density, impact of the sand and stones with large density on the surface of the objective lens 12 is avoided, and the service life of the sighting telescope is prolonged.

As shown in fig. 6, the objective lens assembly 1 includes a light receiving barrel 11, an objective lens 12, and an aperture 13, the light receiving barrel 11 is tightly connected with the adjusting lens assembly 2, the objective lens 12 and the aperture 13 are installed inside the light receiving barrel 11, the objective lens 12 is installed inside the light receiving barrel 11 at one end close to the adjusting lens assembly 2, and the aperture 13 is installed inside the light receiving barrel 11 at one end far away from the adjusting lens assembly 2. The object lens 12 is mainly responsible for gathering light into the sighting telescope, and the aperture 13 is used for adjusting the light quantity, so that the brightness in the light receiving barrel 11 can be in a proper state. When the external environment changes, the user can actively adjust the aperture 13 until the internal view of the sighting telescope is in the optimal brightness state. According to the invention, the sighting telescope can adapt to combat environments in different weather.

As shown in fig. 1, the adjusting mirror assembly 2 includes an adjusting component 21, an adjusting lens group 22, an objective connecting pipe 23 and an eyepiece connecting pipe 24, one end of the adjusting lens group 22 is fixedly connected with the objective connecting pipe 23, the other end of the adjusting lens group 22 is fixedly connected with the eyepiece connecting pipe 24, one end of the objective connecting pipe 23, which is far away from the adjusting lens group 22, is fixedly connected with the objective assembly 1, one end of the eyepiece connecting pipe 24, which is far away from the adjusting lens group 22, is fixedly connected with the eyepiece assembly 3, the adjusting component 21 is mounted on the eyepiece connecting pipe 24, a plurality of fins are arranged on the inner walls of the objective connecting pipe 23 and the eyepiece connecting pipe 24, and the fins are different in size. The adjustment lens group is mainly responsible for correcting the image presented by the objective lens 12 from upside down to left and right to correct direction, and the calibration component corrects the alignment star according to the windage and distance so that the alignment star and the impact point are overlapped. The fins arranged on the inner walls of the objective lens connecting pipe 23 and the eyepiece connecting pipe 24 are small in length, the view field inside the lens barrel is not influenced, and when the sighting telescope vibrates, the fins with different sizes can enable the resistance of gases in different areas inside the lens barrel to be different, so that the vibration frequencies of the areas where the different fins are located are different, and the situation that the sighting telescope resonates is avoided.

As shown in fig. 3, the calibration component 21 includes a first knob 211, a second knob 212, a first pointer 213, and a second pointer 214, different bolts are disposed on the first knob 211 and the second knob 212, the bolts are respectively fastened with the first knob 211 and the second knob 212, a threaded hole is disposed on the eyepiece connecting pipe 24, one end of the bolt, far away from the first knob 211 and the second knob 212, extends into the threaded hole, a transparent plate is fastened and connected at the center of the first pointer 213 and the second pointer 214, the transparent plate connected with the first pointer 213 is fastened and connected with the bolts mounted on the first knob 211, and the transparent plate connected with the second pointer 214 is fastened and connected with the bolts mounted on the second knob 212. In general, when the sighting telescope is calibrated, wind deflection calibration and gravity fall calibration are realized by changing the adjusting lens group 22, but the accuracy of the sighting telescope is easily influenced by changing the position of the adjusting lens group 22.

As shown in fig. 4, the eyepiece assembly 3 includes an eyepiece lens 31 and an eyepiece tube 32, the eyepiece lens 31 is mounted inside the eyepiece tube 32, the cross-section of the wall surface of the eyepiece tube 32 is in a right trapezoid shape, one end of the eyepiece tube 32 provided with a vertical surface is fastened to the protective cover assembly 4, and one end of the eyepiece tube 32 provided with an inclined surface is fastened to one end of the eyepiece connecting tube 24 away from the adjustment lens group 22. The main function of the lens 31 is to change the collected light back to parallel light so that the eyes can observe smoothly, and the inclined surface of the lens barrel 32 can generate a certain guiding effect on the wind blowing to the lens barrel 32, so that the external air flow is prevented from directly blowing the eyes of a user, and the protection effect on the eyes is realized.

As shown in fig. 4 and 5, the eyepiece protecting cover 41 includes a fixing ring 411, a protecting ring 412, and a stretching member 414, wherein the fixing ring 411 and the eyepiece tube 32 are tightly connected at one end far away from the eyepiece connecting tube 24, the fixing ring 411 is tightly connected at one end far away from the eyepiece connecting tube 24 with the protecting ring 412, the protecting ring 412 includes an inner bellows 4121, an outer bellows 4122, and two rubber rings 4123, the two rubber rings 4123 are respectively tightly connected at two ends of the inner bellows 4121 and the outer bellows 4122, a plurality of vents are uniformly arranged on the surface of the outer bellows 4122, an annular cavity is formed inside the protecting ring 412, a plurality of groups of stretching members 414 are arranged inside the annular cavity, the stretching member 414 includes an upper hinge rod 4141, a lower hinge rod 4142, a connecting ring 4143, an upper return spring, and a lower return spring, the upper hinge rod 4141 is hinged at one end and the two rubber rings 4123 by the outer ring position, the two upper hinge rod 4141 is hinged at one end, the two upper hinge rod and the two upper hinge rod 4141 is hinged at the other end, the two upper hinge rod and the two lower hinge rod is hinged at the other end, the middle position of the upper hinge rod and the upper hinge rod is hinged at the two ends of the two upper hinge rod 4141 and the lower hinge rod is hinged at the two end of the lower hinge rod 4142 by the lower hinge rod, the upper hinge rod is connected at the two end of the lower hinge rod is hinged at the lower end of the lower hinge rod 4142, the upper hinge rod is connected at the end of the lower hinge rod is opposite end of the upper hinge rod 4142 and the upper hinge rod is opposite to the upper hinge rod, the upper hinge rod is the upper hinge rod and the upper hinge rod is the lower hinge rod is opposite at the lower hinge rod is opposite at the end, and the upper hinge rod is the upper hinge. In order to protect eyes of a user at the moment of gun opening, an eyepiece protecting cover 41 is designed, under a normal state, an upper hinging rod 4141 and a lower hinging rod 4142 are in an open state under the pulling of an upper reset spring and a lower reset spring, the lengths of an inner bellows 4121 and an outer bellows 4122 are supported to be maximum, and external air enters the annular cavity through an air vent arranged on the surface of the outer bellows 4122. At the moment of gun starting, huge recoil forces can press the protection ring 412, the upper hinge rod 4141 and the lower hinge rod 4142 can pull the upper reset spring and the lower reset spring, a part of recoil energy can be transferred to the upper reset spring and the lower reset spring to be accumulated in elastic potential energy, the included angles of the upper hinge rod 4141 and the lower hinge rod 4142 can be contracted, the lengths of the inner bellows 4121 and the outer bellows 4122 can be reduced, gas in the annular cavity can be discharged from the vent, a part of recoil energy is converted into kinetic energy of the gas, the included angles of the upper hinge rod 4141 and the lower hinge rod 4142 can be contracted to drive the inner bellows 4121 and the outer bellows 4122 to stretch to the inner ring and the outer ring, and the contact area between the protection ring 412 and eyes of a user can be increased, so that residual recoil energy can be discharged better.

As shown in fig. 6 and 7, the objective lens protecting cover 42 includes a protecting tube 421, a spiral groove 422, and a flow hole 423, where the protecting tube 421 and the light receiving tube 11 are fastened and connected at one end far away from the adjusting mirror assembly 2, the spiral groove 422 is disposed on the inner side wall of the protecting tube 421, the outer side wall of the protecting tube 421 is provided with an arc protrusion, a plurality of flow holes 423 are uniformly disposed in the spiral groove 422, and the flow hole 423 is communicated with the inner wall surface and the outer wall surface of the protecting tube 421. The eyepiece cover 41 and the objective cover 42 of the present invention are provided with a cover plate, and the eyepiece cover 41 and the objective cover 42 can be sealed by the cover plate when not in use, and then removed when in use. During normal use, the air flow can carry sand and stone to blow to the objective lens 12 surface, when the air flow passes through the protection tube 421, because the spiral groove 422 in the protection tube 421 can produce certain guiding action to the air flow, the air flow close to the inner wall of the protection tube 421 can be subjected to resistance and change direction, the air flow flows along the spiral groove 422, meanwhile, the air flow close to the inner wall of the protection tube 421 can also reduce to a certain extent, the air flow close to the outer wall of the protection tube 421 flows through the arc-shaped protrusion, the flow speed can be increased, the difference of the flow speeds of the air flow at the inner side and the outer side of the protection tube 421 can lead to pressure difference, the air flow at the inner side of the protection tube 421 can flow outwards through the circulation hole, when the air flow close to the inner wall of the protection tube 421 flows into the outer side of the protection tube 421 from the circulation hole, the pressure difference can be produced by the air flow close to the inner wall of the protection tube 421, the trend of the air flow close to the inner wall of the protection tube 421 can be produced, the guiding action of the spiral groove 422 can also cause the rotation of the inner air flow of the protection tube 421, under the combined action of the flowing trend and the rotating force, the sand and stone with higher density can be thrown into the spiral groove 422, and finally discharged from the hole 423, and the air flow can be conveyed to the objective lens 12 with little dust can fly to the objective lens 12 surface. According to the invention, the air flow is guided and separated, so that the sand and stone are divided in density, the impact of the sand and stone with large density on the surface of the objective lens 12 is avoided, and the service life of the sighting telescope is prolonged.

The working principle of the invention is as follows: the objective lens assembly gathers light into the sighting telescope, the adjusting lens assembly corrects the image presented by the object lens 12 into a correct direction from upside down and left and right opposite directions, and the eyepiece assembly changes the gathered light back into parallel light so that the human eyes can observe the light smoothly. When the center of gravity and the impact point do not coincide, the intersection point of the first pointer 213 and the second pointer 214 and the impact point coincide by adjusting the first knob 211 and the second knob 212. At the moment of sniping type firearms are opened, recoil forces can press the protection ring 412, the upper hinge rod 4141 and the lower hinge rod 4142 can pull the upper reset spring and the lower reset spring, a part of recoil force energy can be transferred to the upper reset spring and the lower reset spring to be accumulated in elastic potential energy, the included angles of the upper hinge rod 4141 and the lower hinge rod 4142 can be contracted, the lengths of the inner bellows 4121 and the outer bellows 4122 can be reduced, gas in the annular cavity can be discharged from the vent, a part of recoil force energy is converted into kinetic energy of the gas, and the included angles of the upper hinge rod 4141 and the lower hinge rod 4142 can be contracted to drive the inner bellows 4121 and the outer bellows 4122 to stretch towards the inner ring and the outer ring. When the air flow carries sand and stones and blows to the surface of the objective lens 12, the air flow passes through the protecting tube 421, because the spiral groove 422 in the protecting tube 421 has a certain guiding effect on the air flow, the air flow close to the inner wall of the protecting tube 421 is changed in direction due to resistance and flows along the spiral groove 422, meanwhile, the air flow velocity close to the inner wall of the protecting tube 421 is reduced to a certain extent, the air flow close to the outer wall of the protecting tube 421 flows through the arc-shaped protrusions, the flow velocity of the air flow increases, and the change of the inner air flow and the outer air flow guides the larger sand and stones to be thrown into the spiral groove 422 and finally discharged from the circulating holes 423.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

The foregoing description is only a preferred embodiment of the present invention, and the present invention is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present invention has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a subsidiary air current direction function's buffering protection type gun sight which characterized in that: the sighting telescope comprises an objective lens assembly (1), an adjusting lens assembly (2), an eyepiece lens assembly (3) and a protective cover assembly (4), wherein the objective lens assembly (1) is in fastening connection with the adjusting lens assembly (2), one end of the adjusting lens assembly (2) away from the objective lens assembly (1) is in fastening connection with the eyepiece lens assembly (3), the protective cover assembly (4) is in fastening connection with the objective lens assembly (1) and the eyepiece lens assembly (3), the protective cover assembly (4) comprises an eyepiece protective cover (41) and an objective lens protective cover (42), the eyepiece protective cover (41) and the eyepiece lens assembly (3) are in fastening connection with one end of the adjusting lens assembly (2), the objective lens protective cover (42) and the objective lens assembly (1) are in fastening connection with one end of the adjusting lens assembly (2), the protective cover plate is detachable, one cover plate is arranged at one end of the objective lens protective cover (42) away from the objective lens assembly (1), and the other cover plate is arranged at one end of the eyepiece protective cover (41) away from the eyepiece lens assembly (3).

The adjusting lens assembly (2) comprises a calibrating component (21), an adjusting lens group (22), an objective connecting pipe (23) and an eyepiece connecting pipe (24), one end of the adjusting lens group (22) is fixedly connected with the objective connecting pipe (23), the other end of the adjusting lens group (22) is fixedly connected with the eyepiece connecting pipe (24), one end, far away from the adjusting lens group (22), of the objective connecting pipe (23) is fixedly connected with the objective assembly (1), one end, far away from the adjusting lens group (22), of the eyepiece connecting pipe (24) is fixedly connected with the eyepiece assembly (3), the calibrating component (21) is installed on the eyepiece connecting pipe (24), and a plurality of fins are arranged on the inner walls of the objective connecting pipe (23) and the eyepiece connecting pipe (24) and are different in size;

the calibrating component (21) comprises a first knob (211), a second knob (212), a first pointer (213) and a second pointer (214), different bolts are arranged on the first knob (211) and the second knob (212), the bolts are respectively connected with the first knob (211) and the second knob (212) in a fastening mode, threaded holes are formed in the eyepiece connecting pipe (24), one ends of the bolts, far away from the first knob (211) and the second knob (212), of the bolts extend into the threaded holes, transparent plates are fixedly connected to the central positions of the first pointer (213) and the second pointer (214), the transparent plates connected with the first pointer (213) are fixedly connected with bolts arranged on the first knob (211), and the transparent plates connected with the second pointer (214) are fixedly connected with bolts arranged on the second knob (212).

2. The cushioned protective sighting telescope with airflow guiding function of claim 1, wherein: the objective lens assembly (1) comprises a light receiving cylinder (11), an objective lens (12) and an aperture (13), the light receiving cylinder (11) is fixedly connected with the adjusting lens assembly (2), the objective lens (12) and the aperture (13) are arranged inside the light receiving cylinder (11), the objective lens (12) is arranged inside the light receiving cylinder (11) and is close to one end of the adjusting lens assembly (2), and the aperture (13) is arranged inside the light receiving cylinder (11) and is far away from one end of the adjusting lens assembly (2).

3. The cushioned protective sighting telescope with air flow guiding function of claim 2, wherein: eyepiece subassembly (3) are including eyepiece lens (31), eyepiece tube (32), eyepiece lens (31) are installed inside eyepiece tube (32), the cross-sectional shape of eyepiece tube (32) wall is right trapezoid, the one end that eyepiece tube (32) were provided with vertical face and visor subassembly (4) fastening connection, the one end that eyepiece tube (32) were provided with the inclined plane and eyepiece connecting pipe (24) are kept away from the one end fastening connection of adjustment lens group (22).

4. A cushioned protective sighting telescope with air flow guiding function according to claim 3, wherein: the eyepiece protecting cover (41) comprises a fixing ring (411), a protecting ring (412) and an extending part (414), wherein the fixing ring (411) and the eyepiece barrel (32) are fixedly connected with one end far away from the eyepiece connecting pipe (24), one end far away from the eyepiece barrel (32) of the fixing ring (411) is fixedly connected with the protecting ring (412), the protecting ring (412) comprises an inner corrugated pipe (4121), an outer corrugated pipe (4122) and two rubber rings (4123), the number of the rubber rings (4123) is two, the two ends of the inner corrugated pipe (4121) and the two ends of the outer corrugated pipe (4122) are respectively and fixedly connected with the two rubber rings (4123), a plurality of air vents are uniformly arranged on the surface of the outer corrugated pipe (4122), an annular cavity is formed inside the protecting ring (412), a plurality of extending parts (414) are arranged inside the annular cavity, the extending part (414) comprises an upper hinging rod (4141), a lower hinging rod (4142), a connecting ring (4143), an upper reset spring and a lower reset spring, the number of the upper hinging rod (4141) are two, the two upper hinging rods (4141) are respectively hinged with the two rubber rings (4123) and one end of the two outer hinging rods (41) are hinged with one end of the two outer ring (41) respectively, the middle position of the upper hinging rod (4141) is fixedly connected with one end of an upper reset spring, one end of the upper reset spring, which is far away from the upper hinging rod (4141), is fixedly connected with a connecting ring (4143), two lower hinging rods (4142) are arranged, one ends of the lower hinging rods (4142) are hinged with two rubber rings (4123) at the inner ring positions respectively, the other ends of the lower hinging rods (4142) are hinged with each other, one end of the lower hinging rods (4142) is hinged with an inner bellows (4121), the middle position of the lower hinging rods (4142) is fixedly connected with one end of the lower reset spring, and one end of the lower reset spring, which is far away from the lower hinging rods (4142), is fixedly connected with the connecting ring (4143).

5. The cushioned protective sighting telescope with airflow guiding function of claim 1, wherein: the objective lens protection cover (42) comprises a protection tube (421), a spiral groove (422) and a circulation hole (423), wherein the protection tube (421) and the light receiving cylinder (11) are fixedly connected with one end of the adjusting lens assembly (2) far away, the spiral groove (422) is arranged on the inner ring side wall of the protection tube (421), the arc-shaped protrusion is arranged on the outer ring side wall of the protection tube (421), a plurality of circulation holes (423) are uniformly formed in the spiral groove (422), and the circulation hole (423) is communicated with the inner wall surface and the outer wall surface of the protection tube (421).