CN102798318B - Sight with retractable gobo - Google Patents

Abstract

The invention relates to a sighting device with a telescopic shading cylinder, which comprises an outer cylinder with an object end part, a cam cylinder which is rotatably sleeved on the object end part and is provided with at least one cam guide groove, the cam cylinder is rotated to drive the shading cylinder to move between a retraction position and an extension position relative to the object receiving end part.

Description

Sight with retractable gobo

technical field

The invention relates to a sight, in particular to a sight with a retractable light-shielding cylinder.

Background technique

As shown in Figure 1, it is a known collimator with an external light-shielding cylinder, which includes an outer cylinder 1 and an external light-shielding cylinder 2, the outer cylinder 1 has an object-connecting end 101, and is arranged on the The objective lens group 102 inside the end portion 101.

In this way, in order to avoid the interference of other light when aiming, the user will externally connect the light-shielding tube 2 to the front end of the object-connecting end 101 of the outer tube 1. However, since the light-shielding tube 2 is additionally screwed to the outer tube tube 1, therefore, when the user connects the light-shielding tube 2 to the outer tube 1 or after taking it off, he needs to place the light-shielding tube 2 in a backpack or a dedicated storage bag, causing the user to carry and The inconvenience of extra storage.

Contents of the invention

Therefore, the technical problem to be solved by the present invention is to provide a sight with a retractable light-shielding tube that is free from additional carrying and storage, in view of the defects that the light-shielding tube of the sight is screwed and inconvenient to carry and store in the prior art.

The technical solution adopted by the present invention to solve the technical problem is to provide a collimator with a retractable light-shielding cylinder, which includes an outer cylinder, a cam cylinder, a rotating limit assembly, a light-shielding cylinder unit, and a straight-forward limit assembly . The outer cylinder extends axially and has an object-contacting end. The cam barrel is rotatably sleeved on the object-connecting end, and has a first front end, a first rear end, and at least one cam guide groove. The rotation limiting assembly has at least one limiting screw arranged on one of the object-connecting end and the cam barrel, and the other one of the object-connecting end and the cam barrel is arranged on the limiting screw. Limiting ring groove for screw sliding fit. The light-shielding cylinder unit has a light-shielding cylinder movably sleeved on the object-connecting end and between the object-connecting end and the cam cylinder along the axial direction, and at least one light-shielding cylinder is arranged on the light-shielding cylinder and connected with the cam The guide pin is connected with the guide groove, and the shading cylinder has a second front end and a second rear end. The straight-forward limit assembly has a limit guide block arranged on one of the object-connecting end and the light-shielding cylinder, and is arranged on the other of the object-connecting end and the light-shielding cylinder and is connected to the position-limiting Linear guide grooves for sliding fit of guide blocks. Wherein, rotating the cam cylinder drives the light-shielding cylinder to move between a retracted position and an extended position relative to the object-connecting end. When the light-shielding cylinder is in the retracted position, the second front and rear ends are respectively adjacent to The first front and rear ends, when the shade tube is in the extended position, the second front end is far away from the first front end, and the second rear end is adjacent to the first front end.

The sight with a telescopic light-shielding tube implemented in the present invention has the following beneficial effects: compared with the known sight with an externally-connected light-shielding tube, it can avoid the inconvenience of additional carrying and storage by the user, and at the same time can effectively prevent guns from being Improper shifting of the visor due to the impact of the shot.

Description of drawings

Fig. 1 is a partial combined cross-sectional schematic diagram of a known sight with an external light-shielding tube;

Fig. 2 is a partially cutaway exploded plan view of a preferred embodiment of the collimator with a telescopic light-shielding tube of the present invention;

Fig. 3 is a partial cross-sectional combined plan view of the preferred embodiment, illustrating that the protective outer cylinder of the preferred embodiment is sectioned, and the light-shielding cylinder of the preferred embodiment is in the retracted position;

Fig. 4 is a schematic cross-sectional view of section line IV-IV in Fig. 3, illustrating that the shading tube is in the retracted position;

Figure 5 is a view similar to Figure 3, illustrating the gobo in the extended position; and

FIG. 6 is a schematic cross-sectional view of section line VI-VI in FIG. 5 , illustrating that the light-shielding tube is in the extended position.

Detailed ways

The foregoing and other technical content, features and effects of the present invention will be clearly understood in the following detailed description of a preferred embodiment with accompanying drawings.

Referring to Figures 2, 3, and 4, it is a preferred embodiment of the sight with a telescopic shading cylinder of the present invention. The sight with a telescopic shading cylinder includes: an outer cylinder 10, a cam cylinder 20, and a rotation limiting assembly 30 , shading cylinder unit 40 , straight forward limit assembly 50 , decorative ring 60 , and protective outer cylinder 70 .

The outer cylinder 10 extends along the axis X, and has an object-connecting end 11 , and an objective lens group 12 disposed in the object-connecting end 11 . It should be noted that in this embodiment, the outer tube 10 is only partially shown, therefore, other known components applied to the sight are not disclosed, for example, the eyepiece group, the zoom mechanism, or the impact correction mechanism... etc.

The cam barrel 20 is rotatably sleeved on the object end 11, and has a first front end 21, a first rear end 22, and a first inner peripheral surface extending from the first front end 21 to the first rear end 22. 23. The first outer peripheral surface 24 opposite to the first inner peripheral surface 23, two cam guide grooves 25 opposite to each other and passing through the first inner and outer peripheral surfaces 23, 24 respectively, and two spaced apart And pass through the installation holes 26 of the first inner and outer peripheral surfaces 23 and 24 respectively.

The cam guide grooves 25 respectively have a front limiting section 251 adjacent to the first front end 21 and extending in the circumferential direction, a rear limiting section 252 adjacent to the first rear end 22 and extending in the circumferential direction, and connecting the front , The connection section 253 of the rear limiting sections 251, 252.

The rotation limit assembly 30 has two limit screws 31 arranged at intervals on the object end 11 of the outer cylinder 10, and is formed on the first inner peripheral surface 23 of the cam cylinder 20 and is adjacent to the first rear surface. The limit ring groove 32 of the end 22, these limit screws 31 are respectively slidably fitted with the limit ring groove 32, and engage with each other. In this embodiment, these mounting holes 26 respectively correspond to these limit screws 31 and communicate with the limit ring groove 32, and these mounting holes 26 allow these limit screws 31 to pass through the cam cylinder 20 for locking. At the end 11 of the object.

The light-shielding cylinder unit 40 has a light-shielding cylinder 41 movably sleeved on the object-connecting end 11 of the outer cylinder 10 along the axis X and interposed between the object-connecting end 11 and the cam cylinder 20 , and Two guide pins 42 are disposed opposite to the light-shielding cylinder 41 and respectively engaged with the cam guide grooves 25 . The shade tube 41 has a second front end 411 , a second rear end 412 , and a second inner peripheral surface 413 extending from the second front end 411 to the second rear end 412 .

The linear limit assembly 50 has a limit guide block 51 arranged on the outside of the object-contacting end 11 of the outer cylinder 10 and protruding radially outward, and a guide block 51 formed on the light-shielding cylinder 41 along the axial direction X. The linear guide groove 52 of the second inner peripheral surface 413 , the position-limiting guide block 51 and the linear guide groove 52 are slidably fitted and engaged with each other.

The decorative ring 60 is disposed on the second front end 411 of the light-shielding tube 41 and screwed to the second inner peripheral surface 413 , the decorative ring 60 can decorate the light-shielding tube 41 .

The protective outer cylinder 70 is sleeved on the first outer peripheral surface 24 of the cam cylinder 20 . In this embodiment, the material of the protective outer cylinder 70 is rubber, and the protective outer cylinder 70 can cover the cam guide grooves 25 and the installation holes 26 to produce decorative and waterproof effects, and can prevent light from passing through these Cam guide groove 25. Preferably, the protective outer cylinder 70 has several friction protruding rings 71 arranged at intervals on the outer side.

Rotating the cam cylinder 20 can drive these guide pins 42 through the cam guide grooves 25, and drive the light-shielding cylinder 41 in the retracted position (see Fig. 3, 4) and the extended position (see Fig. 5, 6), when the shading tube 41 is in the retracted position, the guide pins 42 respectively engage with the rear limit sections 252 of the cam guide grooves 25, so that the shading tube 41 is positioned in the retracted position. position, at this time, the second front and rear ends 411, 412 are adjacent to the first front and rear ends 21, 22 respectively; on the contrary, when the light shielding cylinder 41 is in the extended position, the guide pins 42 are respectively in contact with the The front limiting sections 251 of the cam guide grooves 25 are engaged to locate the shade tube 41 in the extended position. At this time, the second front end 411 is far away from the first front end 21, and the second rear end 412 is adjacent to the first front end 21. first front end 21 .

Thereby, as shown in Figures 5 and 6, when the user wants to avoid the interference of other light rays while aiming, the user can rotate the cam tube 20 through the protective outer tube 70 to drive the light shielding tube 41 to move forward to the extended position. On the contrary, as shown in Figures 3 and 4, when the user does not need to use the shading cylinder 41, the cam cylinder 20 can be rotated through the protective outer cylinder 70 to drive the shading cylinder 41 moves rearward to this retracted position.

Through the above description, the advantages of the present invention can be summarized as follows:

1. In the present invention, the cam tube 20 can be used to drive the light-shielding tube 41 to move between the retracted position and the extended position. When the user wants to use the light-shielding tube 41, the light-shielding tube 41 can be turned out for use at any time , when the user does not want to use the light-shielding cylinder 41, the light-shielding cylinder 41 can also be transferred between the cam cylinder 20 and the outer cylinder 10 at any time, so as to reduce the overall length of the present invention. Therefore, compared with the known The sight of the external shading tube, the present invention can save the user from the inconvenience of extra carrying and storage.

2. When the shade tube 41 is in the retracted position and the extended position, the guide pins 42 can respectively engage with the rear limit section 252 and the front limit section 251 of the cam guide grooves 25, so that the shade tube 41 are respectively positioned at the retracted position and the extended position. Therefore, the present invention can effectively avoid the improper displacement of the light-shielding cylinder 41 caused by the impact of the gun when shooting.

To sum up, the sight with the retractable light-shielding cylinder of the present invention can not only avoid the inconvenience of extra carrying and storage for the user, but also the light-shielding cylinder can be kept in place when the gun shoots, so it can indeed achieve the purpose of the present invention. Purpose.

The above descriptions are only preferred embodiments of the present invention, and cannot limit the scope of the present invention with this. All simple equivalent changes and modifications made according to the claims of the present invention and the content of the description of the invention still belong to the present invention. covered by the patent.

Claims (9)

1. a sight with telescopic cone, is characterized in that, comprises:

Urceolus, extends vertically, and has far vane portion;

Cam canister, is sheathed on this far vane portion rotationally, and has the first front end, the first rear end, and at least one cam guide channel;

Rotary stopper assembly, has at least one limited screw that is arranged at the wherein one of this far vane portion and this cam canister, and is arranged at the other one of this far vane portion and this cam canister the spacing circular groove being slidably matched with this limited screw;

Cone unit, have along this and be axially movably sheathed on this far vane portion the cone between this far vane portion and this cam canister, and at least one pilot pin that is arranged at this cone and is connected with this cam guide channel, this cone has the second front end, and the second rear end; And

Directly enter spacing assembly, there is the spacing guide block of the wherein one that is arranged at this far vane portion and this cone, and be arranged at the other one of this far vane portion and this cone the straight line guide channel being slidably matched with this spacing guide block;

Wherein, rotating this cam canister orders about this cone and moves between retracted position and extended position with respect to this far vane portion, when this cone is during at this retracted position, this second front and back ends is respectively adjacent in this first front and back ends, when this cone is during at this extended position, this second front end is away from this first front end, and this second rear end is adjacent to this first front end.

2. the sight with telescopic cone according to claim 1, it is characterized in that, this cam canister has more the first inner peripheral surface that extends to this first rear end from this first front end, and in contrast to the first outer peripheral face of this first inner peripheral surface, this cam canister has two and is oppositely arranged and contrary cam guide channel each other, these cam guide channels run through respectively this first inside and outside side face, and this cone unit has two pilot pins that are oppositely arranged and are connected with these cam guide channels respectively.

3. the sight with telescopic cone according to claim 2, it is characterized in that, this rotary stopper assembly has the limited screw that number is arranged at intervals at the far vane portion of this urceolus, the spacing circular groove of this rotary stopper assembly is formed at the first inner peripheral surface of this cam canister and is adjacent to this first rear end, and these limited screws are connected with this spacing circular groove respectively.

4. the sight with telescopic cone according to claim 3, is characterized in that, this cam canister has more the installing hole that number runs through respectively this first inside and outside side face and is communicated with this spacing circular groove, and these installing holes correspond respectively to these limited screws.

5. the sight with telescopic cone according to claim 2, it is characterized in that, this cone has more the second inner peripheral surface that extends to this second rear end from this second front end, this spacing guide block that directly enters spacing assembly is arranged at the far vane portion outside of this urceolus, this straight line guide channel that directly enters spacing assembly is axially formed at the second inner peripheral surface of this cone along this, and this spacing guide block is connected with this straight line guide channel.

6. the sight with telescopic cone according to claim 1, it is characterized in that, the cam guide channel of this cam canister has and is adjacent to this first front end the front limit section of along the circumferential direction extending, is adjacent to this first rear end rear spacing section of along the circumferential direction extending, and connect this linkage section of forward and backward spacing section, when this cone is during at this retracted position, this pilot pin is connected with this latter spacing section, and when this cone is during at this extended position, this pilot pin is connected with this front limit section.

7. the sight with telescopic cone according to claim 5, is characterized in that, more comprises and is arranged at the second front end of this cone the circlets being spirally connected with this second inner peripheral surface.

8. the sight with telescopic cone according to claim 2, is characterized in that, more comprises protection urceolus, and this protection urceolus is sheathed on this cam canister.

9. the sight with telescopic cone according to claim 8, is characterized in that, this protection urceolus has the friction bulge loop that number is arranged at intervals at outside.