Impact-resistant lens structure

Abstract

The utility model belongs to the technical field of lenses, and discloses an anti-impact lens structure, which comprises a fixed lens frame, a movable group and an elastic assembly. The movable group is slidably arranged in the fixed mirror frame, a plurality of groups of first mounting holes which are circumferentially and uniformly distributed are formed in the outer wall of the movable group in the axis direction of the movable group, each group of first mounting holes comprises two first mounting holes which are circumferentially distributed in the axis direction of the movable group, and the elastic assembly can be mounted by selecting one group of first mounting holes; and two symmetrically distributed first mounting holes in two adjacent groups of first mounting holes can be selected for mounting. According to the anti-impact lens structure, the elastic assemblies are installed in the first installation holes symmetrically distributed in one group of first installation holes or in two adjacent groups of first installation holes, so that the elastic assemblies elastically abut against the inner wall of the fixed lens frame, the moving group is deflected to one side of the fixed lens frame, a gap between the moving group and the fixed lens frame is reduced, and the service life of the moving group is prolonged. And the impact resistance is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of lenses, in particular to an impact-resistant lens structure. Background Art

[0002] Gun sight lenses must maintain focus even in impact environments, thus requiring a certain level of impact resistance. To improve this, existing technologies typically incorporate elastic anti-vibration components within the lens. These components effectively cushion the lens from impact, preventing damage. However, this structure can only withstand general collisions and impacts and cannot meet the vibration and impact requirements of gun sight lenses. Utility Model Content

[0003] The purpose of the utility model is to provide an impact-resistant lens structure, improve the impact resistance, and meet the anti-vibration requirements of gun sight lenses.

[0004] To achieve this purpose, the present invention adopts the following technical solutions:

[0005] Impact-resistant lens construction, including:

[0006] Fixed frame;

[0007] The movable group is slidably disposed in the fixed frame. The outer wall of the movable group is provided with a plurality of groups of first mounting holes evenly distributed around the circumference in the direction of the axis of the movable group, each group of the first mounting holes includes two. The number of the first mounting holes distributed around the circumference in the direction of the axis of the movable group is;

[0008] The elastic component is selectively installed in one group of the first mounting holes, or selectively installed in two symmetrically distributed first mounting holes in two adjacent groups of the first mounting holes, and the elastic component elastically abuts against the inner wall of the fixed frame.

[0009] As an optional solution, the elastic component includes a mounting column, a first elastic member and a steel ball, the mounting column is arranged in the first mounting hole, and the mounting column is provided with a accommodating cavity, the top of the accommodating cavity is provided with a connecting hole, the first elastic member and the steel ball are both arranged in the accommodating cavity, the first elastic member elastically abuts between the steel ball and the bottom of the accommodating cavity, and a part of the steel ball protrudes from the connecting hole and abuts against the inner wall of the fixed frame.

[0010] As an optional solution, the mounting column includes a column body and an end cover, the column body is provided with the accommodating cavity, and the end cover is detachably arranged at one end of the column body away from the inner wall of the fixed frame to form the bottom of the accommodating cavity.

[0011] As an optional solution, the first elastic member is a compression spring or a plurality of disc springs superimposed on each other.

[0012] As an optional solution, three groups of first mounting holes are provided, and the three groups of first mounting holes are evenly distributed around the circumference.

[0013] As an optional solution, it also includes multiple second elastic members, and the end surface of the movable group facing the fixed frame is provided with multiple second mounting holes distributed circumferentially around the axis direction of the movable group, and the multiple second elastic members are arranged in a one-to-one correspondence in the multiple second mounting holes, and the second elastic members elastically abut between the movable group and the fixed frame.

[0014] As an optional solution, three second elastic members and three second mounting holes are provided.

[0015] As an optional solution, the mobile group includes:

[0016] A movable lens barrel is slidably disposed in the fixed lens frame, and the outer wall of the movable lens barrel is provided with the first mounting hole;

[0017] Multiple lenses are arranged at intervals in the movable lens barrel, one end of each lens is limited to abut against the corresponding step on the inner wall of the movable lens barrel, and the other end is limited by a spacer, and the spacer is threadedly connected to the inner wall of the movable lens barrel and abuts against the other end of the corresponding lens.

[0018] As an optional solution, it further includes a base, which is fixedly connected to the fixed frame via a plurality of screws.

[0019] As an optional solution, the screw sleeve is provided with a spring washer, and the spring washer elastically abuts between the nut of the screw and the base.

[0020] Beneficial effects of the utility model:

[0021] The utility model provides an impact-resistant lens structure. By installing elastic components in first mounting holes symmetrically distributed in a group of first mounting holes or in two adjacent groups of first mounting holes, the elastic components elastically abut against the inner wall of the fixed frame, thereby achieving a movable group deflecting toward one side of the fixed frame, reducing the gap between the movable group and the fixed frame, improving the impact resistance, and meeting the use requirements of gun-aiming lenses. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is an exploded view of the structure of the impact-resistant lens structure provided by an embodiment of the present utility model;

[0023] Figure 2is a cross-sectional view of an impact-resistant lens structure provided by an embodiment of the present utility model;

[0024] Figure 3 It is a structural diagram of the elastic component involved in the embodiment of the present utility model.

[0025] In the picture:

[0026] 1. Fix the frame;

[0027] 2. Mobile group; 21. Mobile lens barrel; 211. First mounting hole; 22. Lens; 23. Spacer;

[0028] 3. Elastic component; 31. Mounting column; 311. Column body; 312. End cap; 32. Steel ball;

[0029] 4. a second elastic member;

[0030] 5. Focus ring;

[0031] 6. Base; 61. Screw; 611. Spring washer. DETAILED DESCRIPTION

[0032] The following describes in detail embodiments of the present invention. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar components or components having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to explain the present invention, and should not be construed as limiting the present invention.

[0033] In the description of this utility model, unless otherwise expressly specified or limited, the terms "connected," "connect," and "fixed" should be understood in a broad sense. For example, they may refer to fixed or detachable connections, mechanical or electrical connections, direct or indirect connections through an intermediate medium, and internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0034] In the description of the present utility model, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first feature and the second feature being in direct contact, or may include the first feature and the second feature being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature includes the first feature being directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0035] The technical solution of the present invention will be further described below with reference to the accompanying drawings and through specific implementation methods.

[0036] like Figure 1-Figure 3 As shown, the embodiment of the present invention provides an impact-resistant lens structure, which includes a fixed frame 1, a focus ring 5, a moving group 2, and an elastic component 3. The moving group 2 is slidably disposed within the fixed frame 1, and the focus ring 5 is rotatably disposed on the fixed frame 1 and threadedly connected to the moving group 2. By rotating the focus ring 5, the moving group 2 can be moved along its axis to achieve focusing. To reduce the gap between the mobile group 2 and the fixed frame 1, multiple groups of first mounting holes 211 are provided on the outer wall of the mobile group 2, evenly distributed around the axis of the mobile group 2. Each group of first mounting holes 211 includes two first mounting holes 211 distributed around the axis of the mobile group 2. Depending on the requirements of each impact-resistant lens structure, the elastic component 3 can be installed in one group of first mounting holes 211, or in two symmetrically distributed first mounting holes 211 in two adjacent groups of first mounting holes 211 (i.e., two first mounting holes 211 close to each other or two first mounting holes 211 far apart from each other in the two adjacent groups of first mounting holes 211). As long as the elastic component 3 elastically abuts the inner wall of the fixed frame 1, the mobile group 2 can be biased toward one side of the fixed frame 1, thereby reducing the gap and increasing the impact resistance. When selecting to install the elastic component 3 in the first mounting hole 211, a test can be conducted after installation to select the optimal location of the first mounting hole 211 for installation.

[0037] The impact-resistant lens structure installs the elastic component 3 by selecting the first mounting holes 211 symmetrically distributed in one group of first mounting holes 211 or in two adjacent groups of first mounting holes 211, so that the elastic component 3 elastically abuts the inner wall of the fixed frame 1, thereby achieving the mobile group 2 being biased toward one side of the fixed frame 1, reducing the gap between the mobile group 2 and the fixed frame 1, improving the impact resistance, and being able to meet the use requirements of gun-type lenses.

[0038] Optionally, refer to Figure 3As shown, the elastic assembly 3 includes a mounting column 31, a first elastic member, and a steel ball 32. The mounting column 31 is disposed in the first mounting hole 211 and is provided with a receiving cavity. The top of the receiving cavity is provided with a communicating hole. The first elastic member and the steel ball 32 are both disposed in the receiving cavity. The first elastic member elastically abuts between the steel ball 32 and the bottom of the receiving cavity. A portion of the steel ball 32 protrudes from the communicating hole and abuts against the inner wall of the fixed frame 1. This structure, by providing the steel ball 32 with elastic abutment against the inner wall of the fixed frame 1, not only improves the impact resistance, but also reduces the wear on the fixed frame 1 and reduces the frictional resistance.

[0039] Specifically, the mounting column 31 includes a column body 311 and an end cap 312. The column body 311 is provided with a receiving cavity. The end cap 312 is detachably mounted on one end of the column body 311 away from the inner wall of the fixed frame 1, forming the bottom of the receiving cavity. This structure allows the first elastic member and the steel ball 32 to be installed in the receiving cavity through the end of the column body 311 provided with the end cap 312, making installation and maintenance more convenient.

[0040] In this embodiment, three groups of first mounting holes 211 are provided, and the three groups of first mounting holes 211 are evenly distributed around the circumference.

[0041] Optionally, the first elastic member may be a compression spring or a plurality of disc springs superimposed on each other.

[0042] In this embodiment, if Figure 1-Figure 2 As shown, the mobile group 2 includes a mobile lens barrel 21 and a plurality of lenses 22. The mobile lens barrel 21 is slidably disposed within the fixed lens frame 1, and a first mounting hole 211 is provided on the outer wall of the mobile lens barrel 21. The plurality of lenses 22 are spaced apart within the mobile lens barrel 21. One end of each lens 22 is restrained against a corresponding step on the inner wall of the mobile lens barrel 21, and the other end is restrained by a spacer 23. The spacer 23 is threadedly connected to the inner wall of the mobile lens barrel 21 and abuts the other end of the corresponding lens 22. This structure, by threading the spacer 23 to the mobile lens barrel 21, makes the restraint of the lenses 22 more stable, further improving the impact resistance.

[0043] To further enhance the impact resistance of the impact-resistant lens structure, the structure further comprises a plurality of second elastic members 4. The end surface of the movable lens barrel 21 facing the fixed lens frame 1 is provided with a plurality of second mounting holes circumferentially distributed around the axis of the movable lens group 2. The plurality of second elastic members 4 are disposed within the plurality of second mounting holes in a one-to-one correspondence, and the second elastic members 4 elastically abut between the movable lens barrel 21 and the fixed lens frame 1. In this structure, the second elastic members 4 elastically abut the movable lens barrel 21 and the fixed lens frame 1, enabling the second elastic members 4 to act as elastic buffers when the structure is subjected to an impact, preventing rigid collisions and enhancing the structure's impact resistance.

[0044] Optionally, three second elastic members 4 and three second mounting holes are provided. By providing three second elastic members 4 , the buffering effect can be improved and the impact resistance can be further improved.

[0045] Optionally, the second elastic member 4 may be a compression spring.

[0046] Optionally, the impact-resistant lens structure further includes a base 6, which is fixedly connected to the fixed frame 1 via a plurality of screws 61. By providing the base 6, the impact-resistant lens structure can be conveniently fixedly installed on the product.

[0047] Furthermore, the screw 61 is provided with a spring washer 611 , which elastically abuts between the nut of the screw 61 and the base 6 to effectively prevent the impact-resistant lens structure from loosening when subjected to impact.

[0048] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. Those skilled in the art will appreciate that other variations or modifications can be made based on the above description. It is not necessary and impossible to enumerate all implementation methods here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. Impact-resistant lens structure, characterized by: include: Fixing the mirror frame (1); A movable group (2) is slidably arranged in the fixed mirror frame (1); and an outer wall of the movable group (2) is provided with a plurality of groups of first mounting holes (211) uniformly distributed around the circumference in the direction of the axis of the movable group (2); each group of the first mounting holes (211) includes two first mounting holes (211) distributed around the circumference in the direction of the axis of the movable group (2); The elastic component (3) is selectively installed in one group of the first mounting holes (211), or is selectively installed in two symmetrically distributed first mounting holes (211) in two adjacent groups of the first mounting holes (211), and the elastic component (3) elastically abuts against the inner wall of the fixed frame (1).

2. The impact-resistant lens structure according to claim 1, wherein: The elastic component (3) comprises a mounting column (31), a first elastic member and a steel ball (32); the mounting column (31) is arranged in the first mounting hole (211), and the mounting column (31) is provided with a receiving cavity, the cavity top of the receiving cavity is provided with a connecting hole, the first elastic member and the steel ball (32) are both arranged in the receiving cavity, the first elastic member elastically abuts between the steel ball (32) and the cavity bottom of the receiving cavity, and a portion of the steel ball (32) protrudes from the connecting hole and abuts against the inner wall of the fixed frame (1).

3. The impact-resistant lens structure according to claim 2, wherein: The mounting column (31) comprises a column body (311) and an end cover (312); the column body (311) is provided with the accommodating cavity; the end cover (312) is detachably arranged on an end of the column body (311) away from the inner wall of the fixed mirror frame (1) to form the bottom of the accommodating cavity.

4. The impact-resistant lens structure according to claim 2, wherein: The first elastic member is a compression spring or a plurality of disc springs superimposed on each other.

5. The impact-resistant lens structure according to claim 1, wherein: Three groups of the first mounting holes (211) are provided, and the three groups of the first mounting holes (211) are evenly distributed around the circumference.

6. The impact-resistant lens structure according to claim 1, wherein: The invention also includes a plurality of second elastic members (4), and a plurality of second mounting holes distributed circumferentially around the axis direction of the movable group (2) are provided on the end surface of the movable group (2) facing the fixed mirror frame (1). The plurality of second elastic members (4) are arranged in a one-to-one correspondence in the plurality of second mounting holes, and the second elastic members (4) elastically abut between the movable group (2) and the fixed mirror frame (1).

7. The impact-resistant lens structure according to claim 6, wherein: Three of the second elastic members (4) and three of the second mounting holes are provided.

8. The impact-resistant lens structure according to claim 1, wherein: The mobile group (2) comprises: A movable lens barrel (21) is slidably disposed in the fixed lens frame (1), and the outer wall of the movable lens barrel (21) is provided with the first mounting hole (211); A plurality of lenses (22) are arranged at intervals in the movable lens barrel (21); one end of each lens (22) is limitedly abutted against a corresponding step on the inner wall of the movable lens barrel (21); the other end is limited by a spacer (23); the spacer (23) is threadedly connected to the inner wall of the movable lens barrel (21) and abuts against the other end of the corresponding lens (22).

9. The impact-resistant lens structure according to claim 1, wherein: It also includes a base (6), and the base (6) is fixedly connected to the fixed mirror frame (1) via a plurality of screws (61).

10. The impact-resistant lens structure according to claim 9, wherein: The screw (61) is sleeved with a spring washer (611), and the spring washer (611) elastically abuts between the nut of the screw (61) and the base (6).

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