Focal length adjusting device for sighting telescope

Abstract

The utility model relates to the technical field of sighting telescope, and particularly discloses a sighting telescope focal length adjusting device which comprises a sighting telescope body, a positioning block fixedly connected to the interior of the sighting telescope body, a connecting ring fixedly connected to the top of the positioning block, an adjusting knob arranged in the middle of the top of the positioning block, and a protective shell connected to the surface of the adjusting knob in a sleeved mode. The top end of the surface of the protective shell is fixedly connected with an annular plate, the surface of the protective shell is sleeved with a connecting shell, an annular block is slidably connected into the annular groove, and the top of the annular block is fixedly connected with an extension spring; the protective shell, the annular plate, the connecting ring, the connecting shell, the extrusion ball, the pressing rod, the compression spring and the connecting rope are matched for use, so that the focal length adjusting knob on the sighting telescope body can be protected after being used every time, and the situation that the adjusting knob is damaged due to the fact that the sighting telescope body falls off accidentally is avoided; and meanwhile, the protection shell can achieve double fixing and protection effects when the knob protection shell is adjusted, and the stability is higher.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of sighting telescope, concretely relates to a sighting telescope focal length adjusting device. BACKGROUND

[0002] Sighting telescope is a kind of firearm accessory that assists gunner to aim and observe the bullet point, sighting telescope works by using Kepler optical principle, and forms upside-down and left-right reversed imaging, therefore, a set of normal lens is arranged between objective lens and ocular lens in actual sighting telescope, so that imaging is reversed again, sighting telescope generally needs to be adjusted according to the focal length when using, so that the target to be aimed at can be shot, and the focal length is generally adjusted by rotating adjusting knob, but the focal length button of the upper part of part of the existing sighting telescope is generally exposed outside directly when using, is exposed outside directly every time before use or after use, lacks the corresponding protection structure, if the focal length adjusting knob of sighting telescope is damaged due to accidental falling of the whole sighting telescope, the focal length adjusting knob of sighting telescope needs to be carefully checked to determine the damage degree, if the knob is only loose or slightly worn, it can be repaired, but if the knob is broken or seriously damaged, the possibility of repair is small, the whole sighting telescope or the specific knob part can be replaced, which increases the replacement cost, thereby affecting the subsequent shooting work, and the use has certain limitation. SUMMARY

[0003] The utility model aims at providing a kind of sighting telescope focal length adjusting device to solve the problems presented in the above background.

[0004] To achieve the above object, the utility model provides the following technical scheme:

[0005] A kind of sighting telescope focal length adjusting device, comprising: sighting telescope body, the inside fixed connection of the sighting telescope body is provided with positioning block, the top of the positioning block is fixedly connected with the adapter ring, the middle part of the top of the positioning block is provided with adjusting knob, the surface of the adjusting knob is sleeved with protective shell, the top of the surface of the protective shell is fixedly connected with annular plate, the surface of the protective shell is sleeved with adapter shell, the inside of the adapter shell is provided with annular groove, the inside of the annular groove is slidably connected with annular block, the top of the annular block is fixedly connected with tension spring.

[0006] Preferably, the inside of the adapter ring is slidably and penetrated by four guide rods, and the surface of the guide rod is penetrated into the inside of the adapter ring, the surface of the guide rod is fixedly connected with extrusion block.

[0007] Preferably, the inner side wall of the connecting ring is fixedly connected with four compression springs, one end of the compression spring is fixedly connected with one side of the extrusion block, and one end of the guide rod is fixedly connected with an extrusion ball.

[0008] Preferably, the bottom end of the protective shell surface is fixedly connected with four L-shaped sliding blocks, and the bottom of the L-shaped sliding block is fixedly connected with a pressing ball.

[0009] Preferably, the top of the L-shaped sliding block is fixedly connected with a pressing rod, the bottom end of the protective shell surface is fixedly connected with four spherical clamping blocks, and the surface of the extrusion ball is attached to the inner side wall of the spherical clamping block.

[0010] Preferably, the surface of the connecting shell is fixedly connected with a connecting rope, and the bottom end of the connecting rope is fixedly connected with the bottom of the positioning block.

[0011] Compared with the prior art, the utility model has the advantages that:

[0012] (1) the sighting telescope body can adjust its focal length through the adjusting knob during use, improve the definition of the target to be shot, adapt to targets of different distances, reduce the parallax influence and improve the user experience, the adjusting knob can be protected by the protective shell after each use, thereby avoiding the damage of the adjusting knob caused by accidental falling of the sighting telescope body, and reducing the cost of unnecessary replacement or maintenance of the adjusting knob.

[0013] (2) after the protective shell covers the adjusting knob, the connecting shell extrudes the pressing rod again, so that the pressing ball extrudes the extrusion ball, and the extrusion ball is inserted into the spherical clamping block, so that the protective shell has the purpose of secondary fixation, improves the stability of the protective shell, and avoids loss after the protective shell is removed. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a perspective view of the utility model;

[0015] Figure 2 It is a perspective view of the adjusting knob of the utility model;

[0016] Figure 3 It is a perspective view of the protective shell of the utility model;

[0017] Figure 4 It is a top view of the connecting ring of the utility model;

[0018] Figure 5 It is a sectional view of the extrusion ball of the utility model;

[0019] In the figure: 1, the scope body; 2, positioning block; 3, the adapter ring; 4, the adjusting knob; 5, the protective shell; 6, the annular plate; 7, the adapter shell; 8, the annular groove; 9, the annular block; 10, the tension spring; 11, the guide rod; 12, the extrusion block; 13, the compression spring; 14, the extrusion ball; 15, the pressing rod; 16, the L-shaped sliding block; 17, the pressing ball; 18, the spherical clamping block; 19, the connecting rope. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0021] Embodiment one:

[0022] Please refer to Figures 1 to 3 As shown in the figure, a scope focal length adjusting device, including the scope body 1, the inside fixed connection of the scope body 1 has the positioning block 2, the top fixed connection of the positioning block 2 has the adapter ring 3, the middle part of the top of the positioning block 2 is provided with the adjusting knob 4, the surface of the adjusting knob 4 is sleeved with the protective shell 5, the top of the surface of the protective shell 5 is fixedly connected with the annular plate 6, the surface of the protective shell 5 is sleeved with the adapter shell 7, the inside of the adapter shell 7 is provided with the annular groove 8, the inside sliding connection of the annular groove 8 has the annular block 9, the top fixed connection of the annular block 9 has the tension spring 10. Through the setting of the positioning block 2, the adjusting knob 4 can be set on its top, through the setting of the adapter ring 3, the adapter shell 7 and its connection are facilitated, the adapter ring 3 and the adapter shell 7 are threadedly connected, through the setting of the protective shell 5, the adjusting knob 4 can play a certain protective role, through the setting of the annular plate 6, the top of the tension spring 10 can be fixed, so that it can be stretched, it should be noted that the bottom of the annular plate 6 is provided with the same slot as the top of the adapter shell 7, and the slot contains the annular block 9, the top of the tension spring 10 is fixedly connected with the bottom of the annular block 9 in the inside of the annular plate 6, through the setting of the tension spring 10, after the protective shell 5 is placed in place, the adapter shell 7 can be lowered by a certain distance again, so that it is stably connected with the adapter ring 3.

[0023] Embodiment two:

[0024] Please refer to Figure 1 , Figure 4 and Figure 5As shown, the inside of the adapter ring 3 is slid and penetrated by four guide rods 11, and the surface of the guide rod 11 is penetrated in the inside of the adapter ring 3, and the surface of the guide rod 11 is fixedly connected with the extrusion block 12. Through the setting of the guide rod 11, the extrusion block 12 is fixed on the surface thereof.

[0025] The inner side wall of the adapter ring 3 is fixedly connected with four compression springs 13, one end of the compression spring 13 is fixedly connected with one side of the extrusion block 12, and one end of the guide rod 11 is fixedly connected with the extrusion ball 14. Through the setting of the extrusion block 12, one end of the compression spring 13 is extruded, so that the guide rod 11 moves towards the adjusting knob 4, and finally the extrusion ball 14 moves together with the guide rod 11.

[0026] The bottom end of the surface of the protective shell 5 is fixedly connected with four L-shaped sliding blocks 16, and the bottom of the L-shaped sliding block 16 is fixedly connected with the pressing ball 17.

[0027] The top of the L-shaped sliding block 16 is fixedly connected with the pressing rod 15, the bottom end of the surface of the protective shell 5 is fixedly connected with four spherical clamping blocks 18, and the surface of the extrusion ball 14 is in contact with the inner side wall of the spherical clamping block 18. Through the setting of the L-shaped sliding block 16, the pressing ball 17 and the pressing rod 15 are fixed, and the pressing rod 15 is pressed downward when the adapter shell 7 is subsequently lowered, so that the pressing ball 17 drives the extrusion ball 14 to be extruded to the left side, so that the extrusion ball 14 is clamped into the inside of the spherical clamping block 18, and the protective shell 5 is stably sleeved on the surface of the adjusting knob 4.

[0028] The surface of the adapter shell 7 is fixedly connected with the connecting rope 19, and the bottom end of the connecting rope 19 is fixedly connected with the bottom of the positioning block 2. Through the setting of the connecting rope 19, the protective shell 5 is directly hung on the positioning block 2 when the adjusting knob 4 is adjusted during use, so as to avoid the falling of the protective shell 5.

[0029] The working principle of the utility model: when the staff needs to use the sighting telescope body 1, the sighting telescope body 1 is installed on the gun, then the adapter shell 7 is rotated, and the adapter shell 7 is subsequently moved upward, at this time, the inner top wall of the adapter shell 7 stops extruding the pressing rod 15, at this time, the L-shaped sliding block 16 moves upward, and then the pressing ball 17 moves upward, at this time, the extrusion ball 14 moves to the right side, the extrusion ball 14 gradually separates from the inside of the spherical clamping block 18, and then the tension spring 10 is reset, then the staff directly lifts the protective shell 5 upward, at this time, the adjusting knob 4 can be used to adjust the focal length, the protective shell 5 is hung by the connecting rope 19, so as to avoid the loss of the protective shell 5, and the adjusting knob 4 can be protected by directly installing the protective shell 5 in reverse direction subsequently.

[0030] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A riflescope focal length adjustment device, comprising: Include: The sighting telescope body (1), the inside fixed connection of sighting telescope body (1) has the positioning block (2), the top fixed connection of positioning block (2) has the link ring (3), the middle part of positioning block (2) top is provided with the adjusting knob (4), the surface of adjusting knob (4) is sleeved with the protective shell (5), the top of protective shell (5) surface fixed connection has the annular plate (6), the surface of protective shell (5) is sleeved with the link shell (7), the inside of link shell (7) is opened with the annular groove (8), the inside sliding connection of annular groove (8) has the annular block (9), the top fixed connection of annular block (9) has the tension spring (10).

2. A riflescope focal length adjustment device as claimed in claim 1, wherein: The inside of link ring (3) is slid and is penetrated with four guide rods (11), and the surface of guide rod (11) is penetrated in the inside of link ring (3), the surface fixed connection of guide rod (11) has extrusion block (12).

3. A riflescope focal length adjustment device as claimed in claim 2, wherein: The inner side wall of link ring (3) is fixedly connected with four compression springs (13), one end of compression spring (13) is fixedly connected with one side of extrusion block (12), one end of guide rod (11) is fixedly connected with extrusion ball (14).

4. The riflescope focal length adjustment device of claim 1, wherein: The bottom of protective shell (5) surface is fixedly connected with four L-shaped sliding blocks (16), the bottom of L-shaped sliding block (16) is fixedly connected with pressing ball (17).

5. A riflescope focal length adjustment device as claimed in claim 4, wherein: The top of L-shaped sliding block (16) is fixedly connected with pressing rod (15), the bottom of protective shell (5) surface is fixedly connected with four spherical clamping blocks (18), and the surface of extrusion ball (14) is attached to the inner side wall of spherical clamping block (18).

6. A riflescope focal length adjustment device as claimed in claim 1, wherein: The surface of link shell (7) is fixedly connected with connecting rope (19), and the bottom of connecting rope (19) is fixedly connected with the bottom of positioning block (2).

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