Thread fastening mechanism and optical lens

Abstract

The utility model provides a thread fastening mechanism and an optical lens. The thread fastening mechanism comprises a first thread member and a second thread member in threaded fit with the first thread member. Wherein the first threaded part is provided with an external thread and a first positioning structure; the second threaded part is provided with an internal thread matched with the external thread and a second positioning structure matched with the first positioning structure, and the second positioning structure abuts against the first positioning structure after the internal thread is screwed into the external thread by a preset stroke, so that the second threaded part is fixed relative to the first threaded part in the screwing-in direction. By the adoption of the technical scheme, the positioning structures are arranged on the two threaded parts, accurate position positioning after the two threaded parts are matched is achieved, the dislocation phenomenon is effectively prevented, it is ensured that the internal thread and the external thread have the accurate and fixed relative position relation after being matched, and the influence on the overall appearance and the use requirement of a product is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of optical lenses, and more specifically to a threaded fastening mechanism and an optical lens. Background Art

[0002] Among the components of optical lenses, threaded fitting is a common fastening method, which is widely used in various products. However, in specific product requirements, such as the design of product appearance parts, it is not only necessary to achieve a fastening effect, but also to require that the internal and external threads have a precise and fixed relative position relationship after fitting. Although the traditional threaded fitting method can achieve fastening, it is difficult to meet such high-precision position requirements and is prone to misalignment, affecting the overall appearance and usage requirements of the product. Utility Model Content

[0003] The utility model aims to provide a threaded fastening mechanism and an optical lens, so as to solve the technical problem in the prior art that the threaded fastening mechanism is prone to misalignment and affects the precision requirement of the fastening position.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0005] In a first aspect, a threaded fastening mechanism is provided, comprising:

[0006] A first threaded component and a second threaded component threadably matched with the first threaded component; wherein the first threaded component is provided with an external thread and a first positioning structure; the second threaded component is provided with an internal thread matched with the external thread and a second positioning structure matched with the first positioning structure, the second positioning structure abuts against the first positioning structure after the internal thread is screwed into the external thread for a preset stroke, so that the second threaded component is fixed relative to the first threaded component in the screwing-in direction.

[0007] By adopting the above technical solution, a positioning structure is set on the two threaded parts, which realizes the precise positioning of the two threaded parts after they are matched, effectively prevents the occurrence of misalignment, ensures that the internal and external threads have a precise and fixed relative position relationship after matching, and reduces the impact on the overall appearance and usage requirements of the product.

[0008] In one embodiment, the first threaded member includes a first threaded portion and a first limiting portion coaxially arranged with the first threaded portion, the external thread is arranged on the first threaded portion and extends in a circumferential spiral direction along the first threaded portion, and the first positioning structure is arranged on the first limiting portion and is located in the circumferential direction of the first limiting portion; the second threaded member includes a second threaded portion and a second limiting portion coaxially arranged with the second threaded portion, the internal thread is arranged on the second threaded portion and extends in a circumferential spiral direction along the second threaded portion, and the second positioning structure is arranged on the second limiting portion and is located in the circumferential direction of the second limiting portion.

[0009] By adopting the above technical solution, the limiting function of the second positioning structure and the first positioning structure is achieved.

[0010] In one embodiment, the first positioning structure is disposed close to the end of the external thread, and the second positioning structure is disposed close to the beginning of the internal thread.

[0011] By adopting the above technical solution, when the second positioning structure abuts against the first positioning structure, the internal and external threads have a high degree of fit.

[0012] In one embodiment, a first positioning mark is provided on the first positioning structure, and a second positioning mark corresponding to the first positioning mark is provided on the second threaded member.

[0013] By adopting the above technical solution, it is helpful for assemblers to obtain the matching degree between the first threaded component and the second threaded component.

[0014] In one embodiment, the first positioning structure and the second positioning structure are convex in shape.

[0015] By adopting the above technical solution, the abutment and cooperation between the first positioning structure and the second positioning structure is facilitated.

[0016] In one embodiment, the first threaded member and the second threaded member are ring-shaped structures.

[0017] The adoption of the technical solution is beneficial to the assembly of the optical lens.

[0018] In one embodiment, the threaded fastening mechanism further includes an elastic element disposed between the first threaded member and the second threaded member, and the elastic element elastically abuts against the first threaded member and the second threaded member respectively.

[0019] By adopting the above technical solution, the gap between the internal thread and the external thread can be effectively eliminated, further improving the stability and reliability of precise positioning.

[0020] In one embodiment, the first threaded member is provided with a first fixing groove, and the second threaded member is provided with a second fixing groove, and the second fixing groove is connected with the first fixing groove to form a fixing space for fixing the elastic element.

[0021] By adopting the above technical solution, the stability of the elastic element when being fixed is improved.

[0022] In one embodiment, the elastic element is a spring, a rubber ring or a silicone ring.

[0023] By adopting the above technical solution, the above elastic element has the advantages of being simple to manufacture and easy to obtain.

[0024] In a second aspect, an optical lens is provided, comprising a lens mechanism and the above-mentioned threaded fastening mechanism, wherein the threaded fastening mechanism is provided on the lens mechanism.

[0025] By adopting the above technical solution, on the basis of having the advantages of the threaded fastening mechanism of the above embodiment, the optical lens of this embodiment also has the advantages of simple structure, easy manufacture and installation and low cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0027] Figure 1 It is a three-dimensional structural diagram of the threaded fastening mechanism provided in the embodiment of the utility model.

[0028] Figure 2 It is an exploded view of the threaded fastening mechanism provided in the embodiment of the utility model.

[0029] Figure 3 yes Figure 1 Magnified view of point “A” in the figure.

[0030] Figure 4 It is a cross-sectional view of a threaded fastening mechanism provided in an embodiment of the utility model.

[0031] Figure 5 yes Figure 4 Magnified view of point “B” in the figure.

[0032] The reference numerals in the figures are:

[0033] 1. First threaded member; 2. Second threaded member; 3. Elastic element;

[0034] 11. external thread; 12. first positioning structure; 13. first threaded portion; 14. first limiting portion; 15. first fixing groove; 21. internal thread; 22. second positioning structure; 23. second threaded portion; 24. second limiting portion; 25. second fixing groove;

[0035] 111, end; 211, head end; 121, first positioning mark; 201, second positioning mark. DETAILED DESCRIPTION

[0036] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0037] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly located on the other element or indirectly located on the other element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or indirectly connected to the other element.

[0038] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention, and do not indicate that a device or element must have a specific direction, be constructed and operated in a specific direction. Therefore, it should not be understood as a limitation on the present invention.

[0039] In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating relative importance or indicating the number of technical features. In the description of the present utility model, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined. The following is a more detailed description of the specific implementation of the present utility model in conjunction with specific embodiments:

[0040] like Figure 1 and Figure 2 As shown, a threaded fastening mechanism provided by an embodiment of the utility model is applied to an optical lens, and is used for threadedly fastening and connecting two components of the optical lens, for example, connecting a component with an "aperture scale indicator mark" to an optical lens body. Of course, in actual application scenarios, the threaded fastening mechanism of this embodiment can also be used to connect other two components; the threaded fastening mechanism of this embodiment can ensure that the two components have an accurate and fixed relative position after being threadedly connected; the following is an explanation through a specific implementation method:

[0041] The threaded fastening mechanism of this embodiment includes: a first threaded member 1, and a second threaded member 2 threadedly matched with the first threaded member 1; wherein the first threaded member 1 is provided with an external thread 11 and a first positioning structure 12; the second threaded member 2 is provided with an internal thread 21 matched with the external thread 11 and a second positioning structure 22 matched with the first positioning structure 12, and the second positioning structure 22 abuts against the first positioning structure 12 after the internal thread 21 is screwed into the external thread 11 to a preset stroke, so that the second threaded member 2 is fixed relative to the first threaded member 1 in the screwing direction.

[0042] Here, it can be understood that the threaded fastening mechanism refers to a connection between two components in an optical lens, such as a component with an "aperture scale indicator mark" and an optical lens body, so that the relative position of the aperture and the optical lens body is fixed; the threaded fastening mechanism includes a first threaded member 1 and a second threaded member 2;

[0043] The first threaded member 1 is a member used to connect with the first component in the optical lens; the first threaded member 1 is provided with an external thread 11 and a first positioning structure 12; the external thread 11 is a thread provided on the outer surface of the first threaded member 1, and the external thread 11 extends spirally on the outer surface of the first threaded member 1; the first positioning structure 12 is used to limit the rotation of the first threaded member 1, so that the first threaded member 1 stops after rotating a preset stroke relative to the second threaded member 2;

[0044] The second threaded member 2 refers to a component used to connect to the second component in the optical lens; the second threaded member 2 is provided with an internal thread 21 and a second positioning structure 22; the internal thread 21 refers to a thread provided on the inner surface of the second threaded member 2, and the internal thread 21 extends spirally on the inner surface of the second threaded member 2; the internal thread 21 matches the external thread 11, so that the second threaded member 2 can be threadedly fastened to the first threaded member 1; the second positioning structure 22 refers to a structure used to limit the rotation of the second threaded member 2, so that the second threaded member 2 stops after rotating a preset stroke relative to the first threaded member 1; it needs to be further explained that the internal thread 21 of the second threaded member 2 is threadedly matched with the external thread 11 of the first threaded member 1, so that the second positioning structure 22 abuts against the first positioning structure 12 after the internal thread 21 is screwed into the preset stroke of the external thread 11, so that the abutment force of the second positioning structure 22 and the first positioning structure 12 fixes the second threaded member 2 relative to the first threaded member 1 in the screwing direction.

[0045] The working principle of the threaded fastening mechanism provided in this embodiment is as follows:

[0046] The first threaded component 1 is connected to the first component in the optical lens, the second threaded component 2 is connected to the second component in the optical lens, and the internal thread 21 of the second threaded component 2 is screwed into the external thread 11 of the first threaded component 1. When the internal thread 21 is screwed into the external thread 11 by a preset stroke, the second positioning structure 22 abuts against the first positioning structure 12, thereby limiting the rotation of the second threaded component 2 relative to the first threaded component 1, and limiting the second threaded component 2 and the first threaded component 1 at the current position, so that the second threaded component 2 and the first threaded component 1 are relatively fixed in the screwing direction.

[0047] By adopting the above technical solution, a positioning structure is set on the two threaded parts, which can achieve precise positioning of the two threaded parts after they are matched, effectively prevent the occurrence of misalignment, ensure that the internal and external threads 11 have a precise and fixed relative position relationship after matching, and reduce the impact on the overall appearance and usage requirements of the product.

[0048] In one embodiment, the first threaded member 1 includes a first threaded portion 13 and a first limiting portion 14 coaxially arranged with the first threaded portion 13, the external thread 11 is arranged on the first threaded portion 13 and extends in a circumferential spiral direction of the first threaded portion 13, and the first positioning structure 12 is arranged on the first limiting portion 14 and is located in the circumferential direction of the first limiting portion 14; the second threaded member 2 includes a second threaded portion 23 and a second limiting portion 24 coaxially arranged with the second threaded portion 23, the internal thread 21 is arranged on the second threaded portion 23 and extends in a circumferential spiral direction of the second threaded portion 23, and the second positioning structure 22 is arranged on the second limiting portion 24 and is located in the circumferential direction of the second limiting portion 24.

[0049] Here, it can be understood that the first threaded member 1 includes a first threaded portion 13 and a first limiting portion 14, which are coaxially arranged, and the external thread 11 is arranged on the first threaded portion 13, and the external thread 11 also extends in a circumferential spiral along the first threaded portion 13; the second threaded member 2 includes a second threaded portion 23 and a second limiting portion 24, which are coaxially arranged, and the internal thread 21 is arranged on the second threaded portion 23, and the internal thread 21 also extends in a circumferential spiral along the second threaded portion 23; the first positioning structure 12 is arranged on the first limiting portion 14, and the second positioning structure 22 is arranged on the second limiting portion 24. In order to enable the first positioning structure 12 to abut against the second positioning structure 22, the first positioning structure 12 is arranged on the circumference of the first limiting portion 14, and the second positioning structure 22 is arranged on the circumference of the second limiting portion 24. In this way, when the internal thread 21 of the second threaded member 2 is screwed into the external thread 11 of the first threaded member 1, the second positioning structure 22 and the first positioning structure 12 will meet in the circumferential direction to achieve mutual abutment in the screw-in direction.

[0050] By adopting the above technical solution, the limiting function of the second positioning structure 22 and the first positioning structure 12 is achieved.

[0051] In one embodiment, the first positioning structure 12 is disposed close to the end 111 of the external thread 11 , and the second positioning structure 22 is disposed close to the beginning 211 of the internal thread 21 .

[0052] Here, it can be understood that when the internal thread 21 is screwed into the external thread 11 by a preset stroke, the head end 211 of the internal thread 21 overlaps with the end 111 of the external thread 11, so that the second positioning structure 22 near the head end 211 of the internal thread 21 can abut against the first positioning structure 12 near the end 111 of the external thread 11.

[0053] By adopting the above technical solution, when the second positioning structure 22 abuts against the first positioning structure 12 , the internal and external threads 11 have a high degree of fit.

[0054] In one embodiment, the first positioning structure 12 is provided with a first positioning mark 121 , and the second threaded member 2 is provided with a second positioning mark 201 corresponding to the first positioning mark 121 .

[0055] Here, it can be understood that the first positioning mark 121 is used to correspond to the second positioning mark 201. When the two are facing each other, it means that the first positioning structure 12 is rotated to the target position, that is, it means that the first threaded member 1 and the second threaded member 2 cooperate well.

[0056] By adopting the above technical solution, it is helpful for assemblers to obtain the matching degree between the first threaded component 1 and the second threaded component 2.

[0057] In one embodiment, the first positioning structure 12 and the second positioning structure 22 are convex in shape.

[0058] Here, it can be understood that the first positioning structure 12 is protruded relative to the outer surface of the first threaded member 1, and the second positioning structure 22 is protruded relative to the inner surface of the second threaded member 2, so that the first positioning structure 12 and the second positioning structure 22 are facilitated to abut against each other.

[0059] It needs to be further explained that the shape design of the first positioning structure 12 and the second positioning structure 22 can be adjusted according to specific needs and is suitable for first threaded components 1 and second threaded components 2 of different shapes and sizes.

[0060] By adopting the above technical solution, the abutment and cooperation between the first positioning structure 12 and the second positioning structure 22 is facilitated.

[0061] In one embodiment, the first threaded member 1 and the second threaded member 2 are annular structures.

[0062] Here, it can be understood that the ring structure is easily applied to an optical lens, for example, a component with an "aperture scale indicator mark" is installed in an optical lens body.

[0063] The adoption of the technical solution is beneficial to the assembly of the optical lens.

[0064] Please also read Figure 4 and Figure 5 In one embodiment, the threaded fastening mechanism further includes an elastic element 3 disposed between the first threaded member 1 and the second threaded member 2, and the elastic element 3 elastically abuts against the first threaded member 1 and the second threaded member 2 respectively.

[0065] Here, it can be understood that the elastic force of the elastic element 3 can drive the first threaded member 1 and the second threaded member 2 to move in directions away from each other, eliminating the gap between the internal thread 21 and the external thread 11, so that the internal thread 21 and the external thread 11 are more tightly combined.

[0066] By adopting the above technical solution, the gap between the internal thread 21 and the external thread 11 can be effectively eliminated, further improving the stability and reliability of precise positioning.

[0067] In one embodiment, the first threaded member 1 is provided with a first fixing groove 15 , and the second threaded member 2 is provided with a second fixing groove 25 . The second fixing groove 25 is connected to the first fixing groove 15 to form a fixing space for fixing the elastic element 3 .

[0068] Here, it can be understood that the shapes and sizes of the first fixing groove 15 and the second fixing groove 25 match the shapes and sizes of the elastic element 3 so that the elastic element 3 can be fixed in the fixing space formed by the first fixing groove 15 and the second fixing groove 25.

[0069] By adopting the above technical solution, the stability of the elastic element 3 when being fixed is improved.

[0070] In one embodiment, the elastic element 3 is a spring, a rubber ring or a silicone ring.

[0071] By adopting the above technical solution, the elastic element 3 has the advantages of being simple to manufacture and easy to obtain.

[0072] In a second aspect, an optical lens is provided, comprising a lens mechanism and the above-mentioned threaded fastening mechanism, wherein the lens mechanism is provided with the threaded fastening mechanism.

[0073] By adopting the above technical solution, on the basis of having the advantages of the threaded fastening mechanism of the above embodiment, the optical lens of this embodiment also has the advantages of simple structure, easy manufacture and installation and low cost.

[0074] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A threaded fastening mechanism, characterized in that: include: A first threaded component and a second threaded component threadably matched with the first threaded component; wherein the first threaded component is provided with an external thread and a first positioning structure; the second threaded component is provided with an internal thread matched with the external thread and a second positioning structure matched with the first positioning structure, the second positioning structure abuts against the first positioning structure after the internal thread is screwed into the external thread for a preset stroke, so that the second threaded component is fixed relative to the first threaded component in the screwing-in direction.

2. The threaded fastening mechanism according to claim 1, characterized in that: The first threaded member includes a first threaded portion and a first limiting portion coaxially arranged with the first threaded portion, the external thread is arranged on the first threaded portion and extends in a circumferential spiral direction along the first threaded portion, and the first positioning structure is arranged on the first limiting portion and is located in the circumferential direction of the first limiting portion; the second threaded member includes a second threaded portion and a second limiting portion coaxially arranged with the second threaded portion, the internal thread is arranged on the second threaded portion and extends in a circumferential spiral direction along the second threaded portion, and the second positioning structure is arranged on the second limiting portion and is located in the circumferential direction of the second limiting portion.

3. The threaded fastening mechanism according to claim 1, characterized in that: The first positioning structure is disposed close to the end of the external thread, and the second positioning structure is disposed close to the beginning of the internal thread.

4. The threaded fastening mechanism according to claim 1, characterized in that: The first positioning structure is provided with a first positioning mark, and the second threaded member is provided with a second positioning mark corresponding to the first positioning mark.

5. The threaded fastening mechanism according to claim 1, characterized in that: The first positioning structure and the second positioning structure are convex in shape.

6. The threaded fastening mechanism according to claim 1, characterized in that: The first threaded member and the second threaded member are annular structures.

7. The threaded fastening mechanism according to any one of claims 1 to 6, characterized in that: The threaded fastening mechanism further includes an elastic element disposed between the first threaded member and the second threaded member, and the elastic element elastically abuts against the first threaded member and the second threaded member respectively.

8. The threaded fastening mechanism according to claim 7, characterized in that: The first threaded member is provided with a first fixing groove, and the second threaded member is provided with a second fixing groove, and the second fixing groove is connected with the first fixing groove to form a fixing space for fixing the elastic element.

9. The threaded fastening mechanism according to claim 7, characterized in that: The elastic element is a spring, a rubber ring or a silicone ring.

10. An optical lens, characterized in that: It comprises a lens mechanism and the threaded fastening mechanism according to any one of claims 1 to 9, wherein the threaded fastening mechanism is provided on the lens mechanism.

Images