CN218524951U - Eyepiece of sighting telescope and sighting telescope - Google Patents

Abstract

The utility model provides an eyepiece of sighting telescope, including inner tube, well section of thick bamboo, urceolus, lens and a plurality of sealing washer, inner tube, well section of thick bamboo and urceolus from interior to exterior are nested the setting each other, and wherein, the outer peripheral face of the front end of inner tube is equipped with outer convex shoulder, outer convex shoulder's outer peripheral face and the inner peripheral surface fixed connection of urceolus. The inner peripheral surface of the middle cylinder is in threaded transmission connection with the outer peripheral surface of the inner cylinder, and an inner shoulder is arranged on the inner peripheral surface of the rear end of the middle cylinder. An annular gap is formed between the inner peripheral surface of the outer cylinder and the outer peripheral surface of the middle cylinder. The lens is fixedly arranged in the middle cylinder and is in sealing fit with the inner shoulder. The sealing rings comprise a first sealing ring, a second sealing ring and a third sealing ring, the first sealing ring is arranged at the joint of the outer shoulder and the outer barrel, and the second sealing ring and the third sealing ring are both connected between the middle barrel and the outer barrel in a sealing mode. The utility model discloses a mutually supporting between inner tube, well section of thick bamboo and the urceolus, only need the less sealing washer of quantity can realize the whole of eyepiece sealed, and sealed effectual.

Description

Eyepiece of sighting telescope and sighting telescope

Technical Field

The application relates to the field of sighting telescope, in particular to an eyepiece of sighting telescope and the sighting telescope.

Background

The eyepiece of the sighting telescope needs to work in various different environments, even under the environments of heavy fog, heavy rain, damp heat and the like, the dryness of the interior of the lens barrel is ensured so as to keep the definition of the lens, and therefore the eyepiece of the sighting telescope has high requirements on air tightness and water tightness. The existing eyepiece focusing mode is generally focused by a screw or a gear, the structural part of the mode is complex to process, the requirement on the grade of a waterproof function is lower, some guide screws are used for forming threaded holes in an eyepiece main lens barrel, and a guide groove is formed in the eyepiece main lens barrel, so that water can easily seep.

The above is only for the purpose of assisting understanding of the technical solution of the present invention, and does not represent an admission that the above is the prior art.

SUMMERY OF THE UTILITY MODEL

In view of the above-mentioned problem, the utility model provides an eyepiece of gun sight and gun sight thereof aims at solving the eyepiece structure of gun sight complicated, the relatively poor technical problem of waterproof nature.

In order to achieve the above object, the utility model provides an eyepiece of sighting telescope includes: the lens comprises an inner cylinder, a middle cylinder, an outer cylinder, a lens and a plurality of sealing rings, wherein the inner cylinder, the middle cylinder and the outer cylinder are nested with each other from inside to outside,

the outer peripheral surface of the front end of the inner barrel is provided with an outer convex shoulder, and the outer peripheral surface of the outer convex shoulder is fixedly connected with the inner peripheral surface of the outer barrel;

the inner peripheral surface of the middle cylinder is in threaded transmission connection with the outer peripheral surface of the inner cylinder, and an inner shoulder is arranged on the inner peripheral surface of the rear end of the middle cylinder;

an annular gap is formed between the inner peripheral surface of the outer cylinder and the outer peripheral surface of the middle cylinder;

the lens is fixedly arranged in the middle cylinder and is in sealing fit with the inner shoulder;

a plurality of including first sealing washer, second sealing washer and third sealing washer in the sealing washer, first sealing washer is located outer convex shoulder with the junction of urceolus, the second sealing washer and the equal sealing connection of third sealing washer be in well section of thick bamboo with between the urceolus, the second sealing washer is located being close to of well section of thick bamboo the one end of outer convex shoulder, the third sealing washer is located keeping away from of urceolus the one end of outer convex shoulder.

In one embodiment, the outer circumferential surface of the outer shoulder is formed with a first annular groove, and the first seal ring is disposed in the first annular groove.

In one embodiment, the inner circumferential surface of the outer barrel is provided with a groove corresponding to the outer shoulder, the groove is formed at the front end of the outer barrel, and the groove is arranged to be open towards the front; the outer peripheral surface of the outer shoulder is in sealing fit with the bottom wall surface of the groove through the first sealing ring.

In one embodiment, the first annular groove is provided adjacent to a front end face of the outer shoulder, and an outer peripheral surface of the outer shoulder is screwed with a bottom wall face of the groove.

In one embodiment, a second annular groove is formed in the outer peripheral surface of one end, close to the outer shoulder, of the middle cylinder, the second annular groove and the groove are arranged in a staggered mode in the front-rear direction, and the second sealing ring is arranged in the second annular groove; the inner peripheral surface of one end of the outer barrel, which is far away from the outer shoulder, is provided with a third annular groove, and the third sealing ring is arranged in the third annular groove.

In one embodiment, the inner cylinder comprises an outer connecting section and an inner block which are connected with each other along the front-back direction, the outer connecting section is exposed out of the front end of the outer cylinder, and the outer peripheral surface of the outer connecting section is provided with a thread structure; the outer peripheral surface of one end of the inner block, which is far away from the external connecting section, is in threaded transmission connection with the inner peripheral surface of the middle cylinder, and the outer peripheral surface of one end of the inner block, which is close to the external connecting section, is provided with the outer convex shoulder.

In one embodiment, the lens barrel further comprises an annular fixing piece, the outer peripheral surface of the fixing piece is in threaded connection with the inner peripheral surface of the rear end of the middle barrel, and the forward side surface of the fixing piece is in limit abutting connection with the lens.

In one embodiment, the fixing part comprises a pressing ring and a mounting ring, the inner circumferential surface of the pressing ring is fixedly connected with the outer circumferential surface of the front end of the mounting ring, the outer circumferential surface of the pressing ring is in threaded connection with the inner circumferential surface of the rear end of the middle barrel, and the forward side surface of the pressing ring is in limit abutment with the lens;

the eyepiece of the sighting telescope further comprises an eyeshade, and the inner peripheral surface of the eyeshade is fixedly connected with the outer peripheral surface of the rear end of the mounting ring.

In one embodiment, the rear end part of the middle cylinder is exposed out of the rear end of the outer cylinder; the eyepiece of the sighting telescope further comprises a focusing piece, and the inner peripheral surface of the focusing piece is fixedly connected with the outer peripheral surface of the exposed part of the middle barrel; the focusing piece is annular, and the peripheral face of focusing piece is equipped with friction line.

The utility model also provides a sighting telescope, which comprises a host, an objective and an ocular of the sighting telescope, wherein the objective is fixedly connected with the front end of the host, and the ocular of the sighting telescope is connected with the rear end of the host; the eyepiece of sighting telescope with host computer fixed connection and sealed cooperation.

The utility model discloses an inner tube, well section of thick bamboo and urceolus cup joint each other, and the mounting means is simple. The middle cylinder is connected to the inner cylinder in a rotating mode from back to front, the front end of the middle cylinder is close to the backward side face of the outer shoulder, and the first sealing ring is arranged between the outer shoulder and the middle cylinder to form a first layer of sealing structure. And a second sealing ring is arranged between the outer peripheral surface of the middle cylinder adjacent to the outer convex shoulder and the inner peripheral surface of the outer cylinder to form a second-layer sealing structure. The two sealing structures can effectively prevent water vapor from entering. The rear end of the inner cylinder is abutted against the front side face of the inner shoulder, and after the lens is in sealing fit with the inner shoulder, the middle cylinder is in sealing fit with the rear end of the outer cylinder through the third sealing ring, so that the integral sealing of the rear end of the eyepiece of the sighting telescope can be realized.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 shows an exploded view of the scope of the present invention;

FIG. 2 is a schematic perspective view of an eyepiece of the sighting telescope of FIG. 1;

FIG. 3 is an exploded view of the eyepiece of the scope of FIG. 2;

FIG. 4 is a schematic front view of the eyepiece of the sighting telescope of FIG. 3;

FIG. 5 is a schematic cross-sectional view of the eyepiece of the sighting telescope of FIG. 4 along line V-V;

FIG. 6 is an enlarged view of a portion of FIG. 5 at A;

fig. 7 is a partial enlarged view of fig. 5 at B.

The reference numbers illustrate:

the objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

The utility model provides an eyepiece 100 of sighting telescope.

In an embodiment of the present invention, referring to fig. 2 to 7, the eyepiece 100 of the sighting telescope includes an inner cylinder 110, a middle cylinder 120, an outer cylinder 130, a lens 140, and a plurality of sealing rings 151, 152, 153, wherein the inner cylinder 110, the middle cylinder 120, and the outer cylinder 130 are nested from inside to outside, an outer shoulder 111 is disposed on an outer circumferential surface of a front end of the inner cylinder 110, and an outer circumferential surface of the outer shoulder 111 is fixedly connected to an inner circumferential surface of the outer cylinder 130; the inner peripheral surface of the middle cylinder 120 is in threaded transmission connection with the outer peripheral surface of the inner cylinder 110, and an inner shoulder 121 is arranged on the inner peripheral surface of the rear end of the middle cylinder 120; an annular gap is formed between the inner circumferential surface of the outer cylinder 130 and the outer circumferential surface of the middle cylinder 120; the lens 140 is fixedly arranged in the middle cylinder 120 and is in sealing fit with the inner shoulder 121; the plurality of sealing rings 151, 152, 153 include a first sealing ring 151, a second sealing ring 152 and a third sealing ring 153, the first sealing ring 151 is disposed at a connection position between the outer shoulder 111 and the outer cylinder 130, the second sealing ring 152 and the third sealing ring 153 are both connected between the middle cylinder 120 and the outer cylinder 130 in a sealing manner, the second sealing ring 152 is located at one end of the middle cylinder 120 close to the outer shoulder 111, and the third sealing ring 153 is located at one end of the outer cylinder 130 far away from the outer shoulder 111.

In the present embodiment, the inner barrel 110, the middle barrel 120, and the outer barrel 130 are nested with each other, so that the eyepiece 100 of the scope has a multi-layer structure, which is more beneficial to the arrangement of a waterproof structure. The outer shoulder 111 of the inner cylinder 110 is fixedly connected with the outer cylinder 130, on one hand, the outer cylinder 130 can be fixed, so that an annular gap is formed between the outer cylinder 130 and the middle cylinder 120, and the middle cylinder 120 can rotate conveniently; on the other hand, the number of the seal rings can be reduced, and the inner tube 110, the middle tube 120, and the outer tube 130 can be connected to each other at the front end only by providing the first seal ring 151 between the outer shoulder 111 and the outer tube 130. The middle tube 120 is in threaded transmission connection with the outer tube 130, the middle tube 120 is used for focusing, an inner shoulder 121 is arranged at the rear end of the middle tube 120, and the rear end of the inner tube 110 is abutted against the front side face of the inner shoulder 121. After the lens 140 is in sealing fit with the inner shoulder 121, the middle tube 120 is in sealing fit with the rear end of the outer tube 130 through the third sealing ring 153, so that the rear end of the sighting telescope can be integrally sealed. In this way, the entire sealing between the inner tube 110, the middle tube 120, and the outer tube 130 can be achieved with a minimum of two sealing rings.

It is understood that the inner shoulder 121 and the lens 140 may be sealed with a sealing ring therebetween, or may be sealed with glue. The inner peripheral surface of the middle cylinder 120 and the outer peripheral surface of the inner cylinder 110 are provided with mutually matched threads, and the middle cylinder 120 can rotate relative to the inner cylinder 110 to drive the lens 140 to move back and forth, so that the position of the focus can be adjusted to obtain a clear image.

A second sealing ring 152 is provided between an outer circumferential surface of the middle barrel 120 adjacent to one end of the outer shoulder 111 and an inner circumferential surface of the outer barrel 130, and after the outer shoulder 111 of the inner barrel 110 is sealed with the first layer of the outer barrel 130, the second sealing ring 152 can realize a double-layer sealing structure of the front end of the eyepiece 100 of the scope, and can more effectively prevent moisture from penetrating into the interior of the lens barrel.

The utility model discloses an eyepiece 100 is when assembling, well section of thick bamboo 120 from the back swivelling joint forward on inner tube 110, and the adjacent outer convex shoulder 111 of front end of well section of thick bamboo 120 side backward, and first sealing washer 151 sets up between outer convex shoulder 111 and well section of thick bamboo 120 to form first layer seal structure. And the middle cylinder 120 is provided with a second sealing ring 152 between the outer circumferential surface of the position adjacent to the outer shoulder 111 and the inner circumferential surface of the outer cylinder 130 to form a second layer sealing structure. The two sealing structures can effectively prevent water vapor from entering. The rear end of the inner cylinder 110 abuts against the front side surface of the inner shoulder 121, and after the lens 140 is in sealing fit with the inner shoulder 121, the rear ends of the middle cylinder 120 and the outer cylinder 130 are in sealing fit through the third sealing ring 153, so that the rear end of the eyepiece 100 of the sighting telescope can be integrally sealed.

Further, referring to fig. 4 to 6, a first annular groove 112 is formed on an outer circumferential surface of the outer shoulder 111, and a first seal ring 151 is disposed in the first annular groove 112.

In this embodiment, the first annular groove 112 can limit the position of the first sealing ring 151, and prevent the first sealing ring 151 from deviating from a fixed position, thereby affecting the sealing effect therebetween.

Further, with continued reference to fig. 6, the inner circumferential surface of the outer cylinder 130 is provided with a groove 131 corresponding to the outer shoulder 111, the groove 131 is formed at the front end of the outer cylinder 130, and the groove 131 is opened forward; the outer peripheral surface of the outer shoulder 111 is in sealing engagement with the bottom wall surface of the groove 131 via a first seal ring 151.

In the present embodiment, the groove 131 of the outer cylinder 130 is provided such that the annular gap between the inner circumferential surface of the outer cylinder 130 and the outer circumferential surface of the middle cylinder 120 is small, which is beneficial to the sealing engagement between the outer circumferential surface of the middle cylinder 120 and the inner circumferential surface of the outer cylinder 130 and the second sealing ring 152 and the third sealing ring 153, and on the other hand, the nesting structure of the inner cylinder 110, the middle cylinder 120 and the outer cylinder 130 can be made more compact. In the embodiment, the groove 131 is L-shaped, and when the inner cylinder 110 and the middle cylinder 120 are assembled, the groove 131 is opened forward, so that the outer cylinder 130 is sleeved on the middle cylinder 120 from back to front, and the bottom wall surface of the groove 131 is in sealing fit with the outer peripheral surface of the outer shoulder 111 through the first sealing ring 151.

Further, with continued reference to fig. 6, the first annular groove 112 is provided adjacent to the front end surface of the outer shoulder 111, and the outer peripheral surface of the outer shoulder 111 is screwed with the bottom wall surface of the recess 131.

In the present embodiment, since the outer cylinder 130 is installed from the rear to the front, if the first annular groove 112 is provided at the rear side of the screw thread, the provision of the first seal ring 151 may affect the screw coupling of the outer cylinder 130 to the outer shoulder 111, and therefore the first annular groove 112 is provided adjacent to the front end surface of the outer shoulder 111, so that the outer cylinder 130 is screw-coupled to the outer shoulder 111 and then is sealingly engaged by the first seal ring 151. It will be appreciated that in other embodiments, if the outer cylinder 130 and the outer shoulder 111 are connected by gluing, it is also preferable to arrange the first annular groove 112 adjacent to the front end surface of the outer shoulder 111, so as to prevent moisture from penetrating the glue layer and affecting the strength of the adhesion between the outer cylinder 130 and the outer shoulder 111, and further prevent the inner cylinder 110 from providing a supporting force to the middle cylinder 120 when the middle cylinder 120 rotates.

Further, referring to fig. 5 and fig. 7, the outer peripheral surface of the middle tube 120 at one end close to the outer shoulder 111 is provided with a second annular groove 122, the second annular groove 122 and the groove 131 are arranged in a staggered manner in the front-rear direction, and a second sealing ring 152 is arranged in the second annular groove 122; the outer cylinder 130 is provided with a third annular groove 132 on an inner circumferential surface of an end remote from the outer shoulder 111, and a third seal ring 153 is provided in the third annular groove 132.

In the present embodiment, the same as the first annular groove 112 of the above-mentioned embodiment, the second annular groove 122 and the third annular groove 132 are provided for fixing the second sealing ring 152 and the third sealing ring 153, so as to prevent them from being displaced during the rotation of the middle cylinder 120, and thus the sealing effect is deteriorated. In the exemplary embodiment, the second annular groove 122 is preferably disposed adjacent the outer shoulder 111 such that the second seal 152 seals even when the first seal 151 is flooded. It is to be understood that, in order to prevent the second seal ring 152 from being thick, the second annular groove 122 is offset from the groove 131 in the front-rear direction.

It can be understood that the second annular groove 122 is provided on the outer circumferential surface of the middle cylinder 120 to avoid the above-mentioned disadvantage, because the second sealing ring 152 is moved when the outer cylinder 130 is threadedly coupled with the outer shoulder 111 of the inner cylinder 110 due to the second annular groove 122 provided on the inner circumferential surface of the outer cylinder 130, and it is difficult to adjust the position of the second sealing ring 152 without disassembling the outer cylinder 130. The rear end of the middle cylinder 120 is provided with an inner shoulder 121 which is in sealing engagement with the lens 140, and the third annular groove 132 is formed in the outer cylinder 130 so as not to affect the structural strength of the inner shoulder 121. In other embodiments, the middle cylinder 120 needs to be exposed out of the outer cylinder 130, and if the third annular groove 132 is disposed on the middle cylinder 120, the contact position between the middle cylinder 120 and the outer cylinder 130 needs to be considered to prevent the third annular groove 132 from being exposed out, and the third annular groove 132 is disposed on the outer cylinder 130, the position relation does not need to be considered, which is more convenient in production implementation.

Further, referring to fig. 5, the inner cylinder 110 includes an outer connecting section 113 and an inner block 114 connected to each other in a front-rear direction, the outer connecting section 113 is exposed at a front end of the outer cylinder 130, and a thread structure is disposed on an outer circumferential surface of the outer connecting section 113; the outer peripheral surface of one end of the inner block 114 far away from the outer connecting section 113 is in threaded transmission connection with the inner peripheral surface of the middle barrel 120, and the outer peripheral surface of one end of the inner block 114 near the outer connecting section 113 is provided with an outer shoulder 111.

In this embodiment, the external connection section 113 of the inner cylinder 110 is exposed out of the outer cylinder 130, the external connection section 113 is provided with a threaded structure, in a specific embodiment, the external connection section 113 is in threaded connection with the main unit 200 of the scope, and in order to ensure the sealing performance of the connection position, a sealing ring may be provided on the outer peripheral surface of one end of the external connection section 113 close to the external shoulder 111, so that the external connection section 113 and the main unit 200 are in sealing fit, and water vapor is prevented from entering the main unit 200 of the scope. The inner section 114 of the inner cylinder 110 is disposed in the outer cylinder 130, the outer peripheral surface of the inner section 114 near one end of the inner shoulder 121 is provided with threads, and gaps are formed between the other parts and the inner peripheral surface of the middle cylinder 120, so that the contact area between the middle cylinder 120 and the inner section 114 is small, and the middle cylinder 120 can rotate conveniently.

Further, referring to fig. 3 and 7, the lens barrel further includes an annular fixing member 160, an outer circumferential surface of the fixing member 160 is in threaded connection with an inner circumferential surface of the rear end of the middle barrel 120, and a forward side surface of the fixing member 160 is in limit abutment with the lens 140.

In the present embodiment, the fixing member 160 is used to fix the lens 140, the inner shoulder 121 abuts against the forward edge surface of the lens 140, and the fixing member 160 abuts against the backward edge surface of the lens 140, so as to clamp and fix the lens 140 in the middle cylinder 120, so that the stability of fixing the lens 140 will not be affected by the screw transmission between the middle cylinder 120 and the inner cylinder 110 of the lens 140. The fixing member 160 is connected with the middle tube 120 through threads, when the lens fixing device is assembled, the lens 140 is fixed at the inner shoulder 121, and then the fixing member 160 is installed, so that the installation of the lens 140 is facilitated, and on the other hand, the fixing member 160 can be screwed forwards or reversely to adjust the tightness of the abutting joint of the fixing member 160 and the lens 140. In a specific embodiment, the lens 140 is sealingly engaged with the inner shoulder 121 via a sealing ring.

Further, with reference to fig. 3 and fig. 7, the fixing member 160 includes a pressing ring 161 and a mounting ring 162, an inner circumferential surface of the pressing ring 161 is fixedly connected to an outer circumferential surface of a front end of the mounting ring 162, an outer circumferential surface of the pressing ring 161 is in threaded connection with an inner circumferential surface of a rear end of the middle barrel 120, and a forward side surface of the pressing ring 161 is in limit abutment with the lens 140; the eyepiece 100 of the scope further includes an eye cup 170, and an inner peripheral surface of the eye cup 170 is fixedly connected to an outer peripheral surface of the rear end of the mounting ring 162.

In this embodiment, the inner circumferential surface of the pressing ring 161 is fixedly connected to the outer circumferential surface of the mounting ring 162, so that the thickness of the fixing member 160 in the vertical direction can be increased, thereby increasing the structural strength of the connection with the middle tube 120. Preferably, the pressing ring 161 and the mounting ring 162 are non-detachably and fixedly connected, for example, the pressing ring 161 and the mounting ring 162 are integrally formed, so that the pressing ring 161, the mounting ring 162 and the eyecup 170 can be integrally assembled and then integrally mounted with the inner circumferential surface of the middle tube 120. In other embodiments, the pressing ring 161 and the mounting ring 162 may also be detachably and fixedly connected, for example, screwed, and during actual assembly, the pressing ring 161 and the middle barrel 120 may be fixedly connected, the lens 140 is fixed, and then the mounting ring 162 and the eyecup 170 are fixedly connected and then integrally mounted on the pressing ring 161.

Further, referring to fig. 3 and 7, the rear end of the middle barrel 120 is exposed to the rear end of the outer barrel 130; the eyepiece 100 of the sighting telescope further comprises a focusing piece 180, and the inner peripheral surface of the focusing piece 180 is fixedly connected with the outer peripheral surface of the exposed part of the middle tube 120; the focusing member 180 is ring-shaped, and friction lines are provided on the outer circumferential surface of the focusing member 180.

In this embodiment, the focusing member 180 is fixedly connected to the exposed portion of the middle barrel 120, and by shifting the focusing member 180, the middle barrel 120 and the inner barrel 110 are in threaded transmission, so that the middle barrel 120 and the lens 140 integrally move back and forth relative to the inner barrel 110, thereby achieving the function of adjusting the focal length. It will be appreciated that the focusing member 180 is preferably annular in shape, but may be handle-shaped in other embodiments. The annular focusing member 180 can compensate for a height difference of an exposed portion of the middle tube 120 with respect to the outer tube 130, and can increase a contact area with the middle tube 120, so that distribution of stress applied to the middle tube 120 during rotation is more uniform. The friction lines on the outer circumference of the focusing member 180 increase the friction between the user's fingers and the focusing member 180, thereby facilitating the user to rotate the focusing member 180.

Referring to fig. 1, the present invention further provides a sighting telescope, which includes a host 200, an objective 300 and an eyepiece 100 of the sighting telescope, wherein the objective 300 is fixedly connected to the front end of the host 200, and the eyepiece 100 of the sighting telescope is connected to the rear end of the host 200; the eyepiece 100 of the sighting telescope is fixedly connected and in sealing fit with the host 200.

In this embodiment, the eyepiece 100 of the sighting telescope is in sealing fit with the host 200 through a sealing ring. The specific structure of the eyepiece 100 of the sighting telescope refers to the above embodiments, and since the sighting telescope adopts all technical solutions of all the above embodiments, at least all the beneficial effects brought by the technical solutions of the above embodiments are achieved, and no further description is given here.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit the same; although the present application has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not necessarily depart from the spirit and scope of the corresponding technical solutions in the embodiments of the present application.

Claims (10)

1. An eyepiece of a sighting telescope is characterized by comprising an inner cylinder, a middle cylinder, an outer cylinder, a lens and a plurality of sealing rings, wherein the inner cylinder, the middle cylinder and the outer cylinder are nested with each other from inside to outside,

the outer peripheral surface of the front end of the inner barrel is provided with an outer convex shoulder, and the outer peripheral surface of the outer convex shoulder is fixedly connected with the inner peripheral surface of the outer barrel;

the inner peripheral surface of the middle cylinder is in threaded transmission connection with the outer peripheral surface of the inner cylinder, and an inner shoulder is arranged on the inner peripheral surface of the rear end of the middle cylinder;

an annular gap is formed between the inner peripheral surface of the outer cylinder and the outer peripheral surface of the middle cylinder;

the lens is fixedly arranged in the middle cylinder and is in sealing fit with the inner shoulder;

a plurality of including first sealing washer, second sealing washer and third sealing washer in the sealing washer, first sealing washer is located outer convex shoulder with the junction of urceolus, the second sealing washer and the equal sealing connection of third sealing washer be in well section of thick bamboo with between the urceolus, the second sealing washer is located being close to of well section of thick bamboo the one end of outer convex shoulder, the third sealing washer is located keeping away from of urceolus the one end of outer convex shoulder.

2. The eyepiece of claim 1, wherein the outer periphery of the outer shoulder defines a first annular groove, the first seal ring being disposed in the first annular groove.

3. An eyepiece of a sighting telescope according to claim 2, wherein an inner peripheral surface of the outer cylinder is provided with a groove corresponding to the outer shoulder, the groove being formed at a front end of the outer cylinder and being open forwardly; the peripheral surface of the outer convex shoulder is in sealing fit with the bottom wall surface of the groove through the first sealing ring.

4. The eyepiece of claim 3, wherein the first annular groove is disposed adjacent a front end surface of the outer shoulder, an outer peripheral surface of the outer shoulder being in threaded engagement with a bottom wall surface of the recess.

5. An eyepiece of a sighting telescope according to claim 3 or 4, wherein the outer peripheral surface of the middle cylinder at an end thereof adjacent to the outer shoulder is provided with a second annular groove, and the second annular groove and the groove are arranged offset from each other in the front-rear direction, and the second seal ring is provided in the second annular groove; and a third annular groove is formed in the inner peripheral surface of one end, far away from the outer shoulder, of the outer cylinder, and a third sealing ring is arranged in the third annular groove.

6. The eyepiece of the scope of claim 1, wherein the inner cylinder includes an outer connecting section and an inner block connected to each other in a front-rear direction, the outer connecting section being exposed at a front end of the outer cylinder, an outer peripheral surface of the outer connecting section having a thread structure; the outer peripheral surface of one end of the inner block, which is far away from the external connecting section, is in threaded transmission connection with the inner peripheral surface of the middle cylinder, and the outer peripheral surface of one end of the inner block, which is close to the external connecting section, is provided with the outer convex shoulder.

7. The eyepiece of a sighting telescope of claim 1, further comprising an annular fixing member, wherein an outer peripheral surface of the fixing member is screwed with an inner peripheral surface of a rear end of the middle tube, and a forward side surface of the fixing member is in limit abutment with the lens.

8. The eyepiece of a sighting telescope of claim 7,

the fixing piece comprises a pressing ring and an installation ring, the inner circumferential surface of the pressing ring is fixedly connected with the outer circumferential surface of the front end of the installation ring, the outer circumferential surface of the pressing ring is in threaded connection with the inner circumferential surface of the rear end of the middle barrel, and the forward side surface of the pressing ring is in limit abutting joint with the lens;

the eyepiece of the sighting telescope further comprises an eyeshade, and the inner peripheral surface of the eyeshade is fixedly connected with the outer peripheral surface of the rear end of the mounting ring.

9. The eyepiece of a sighting telescope of claim 1, wherein a rear end portion of the intermediate tube is exposed at a rear end of the outer tube; the eyepiece of the sighting telescope further comprises a focusing piece, and the inner peripheral surface of the focusing piece is fixedly connected with the outer peripheral surface of the exposed part of the middle barrel; the focusing piece is annular, and the peripheral face of focusing piece is equipped with friction line.

10. A sighting telescope, characterized in that the sighting telescope comprises a host, an objective and an eyepiece of the sighting telescope according to any one of claims 1-9, the objective being fixedly connected to the front end of the host, the eyepiece of the sighting telescope being connected to the rear end of the host; the eyepiece of sighting telescope with host computer fixed connection and sealed cooperation.

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