Spring limiting type lens structure with detachable and replaceable lens and motion camera lens using same

Abstract

The utility model provides a spring limiting type lens structure with a detachable and replaceable lens, which comprises a lens barrel, a first lens, a gland and a spring piece, the first lens is detachably locked between the gland and the front end of the lens barrel through a clamping structure, the spring piece is arranged at the front end of the lens barrel, and when the gland is connected with the front end of the lens barrel, the first lens is detachably locked. According to the lens structure, the lens can be conveniently replaced, the cost is low, the process of adding threads on the lens barrel and the gland is avoided, the cost is saved, the use and maintenance cost of a camera can be effectively reduced, and the lens structure is simple in structure, convenient to operate and high in practicability. And the satisfaction degree of a user to a product is improved.

Description

Technical Field

[0001] This application relates to the field of action cameras, specifically to a spring-limited detachable and replaceable lens structure and its application in action camera lenses. Background Technology

[0002] As people's demand for recording their rich lives grows stronger, the demand for action cameras is also increasing. However, when used in different environments, the convex lens of the camera is prone to wear, scratches, or even breakage, which can damage the core function of the camera. Given the price of thousands or even tens of thousands of yuan, replacing the entire camera is obviously not realistic. At the same time, the conventional threaded locking method is not only complex and costly in terms of manufacturing process, but also prone to loosening of the threads over time, affecting the lens image. Therefore, it is necessary to research a camera structure that can replace damaged lenses and has low replacement costs, reducing the burden on users. Utility Model Content

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide a method that allows for convenient and low-cost lens replacement, which can effectively reduce the cost of camera use and maintenance and improve user satisfaction with the product.

[0004] To achieve the above objectives, this utility model provides a spring-limited detachable and replaceable lens structure, which includes at least a lens barrel, a first lens disposed at the front end of the lens barrel, and a pressure cap that cooperates with the front end of the lens barrel to lock the first lens onto the lens barrel. The pressure cap and the front end of the lens barrel are detachably connected by a snap-fit ​​structure. A spring is provided on the front end of the lens barrel. When the pressure cap is connected to the front end of the lens barrel, the pressure cap squeezes the spring to compress it and generate an elastic repulsive force.

[0005] As described above, a spring-limited detachable and replaceable lens structure includes a lens barrel body and a connecting flange protruding from the front end of the lens barrel body. The pressure cap is rotatably fitted onto the outside of the connecting flange, and the snap-fit ​​structure is provided between the pressure cap and the connecting flange.

[0006] As described above, a spring-limited detachable and replaceable lens structure includes a lens barrel mounting part on the outer peripheral wall of the connecting flange and a pressure cap mounting part on the inner peripheral wall of the pressure cap, wherein the lens barrel mounting part and the pressure cap mounting part can engage with each other.

[0007] As described above, in a spring-limited removable and replaceable lens structure, a limiting part is provided on one side of the lens barrel mounting part. When the pressure cap mounting part is engaged with the lens barrel mounting part, it can rotate to abut against the limiting part to restrict rotation.

[0008] In the spring-limited removable and replaceable lens structure described above, when the pressure cap rotates relative to the connecting flange, the front end face of the pressure cap mounting part rotates to abut against the rear end face of the lens barrel mounting part to form a snap-fit.

[0009] As described above, in a spring-limited detachable and replaceable lens structure, the front end of the lens barrel body is provided with an annular groove on the inner side of the connecting flange, and a sealing ring is provided in the annular groove to abut against the first lens. When the pressure cap is locked on the lens barrel, the first lens squeezes the sealing ring to deform and seal it.

[0010] As described above, in a spring-limited detachable and replaceable lens structure, the front end of the lens barrel is provided with a spring mounting position located outside the connecting flange, and the spring is limited and mounted on the spring mounting position.

[0011] As described above, in a spring-limited removable and replaceable lens structure, the spring has an outwardly protruding deformation portion, and the inner wall of the pressure cap presses against the deformation portion to compress and deform the spring.

[0012] As described above, in a spring-limited removable and replaceable lens structure, the inner wall of the pressure cap has a positioning groove. When the pressure cap is engaged with the lens barrel, the positioning groove can rotate to the spring member, so that the deformable part can be fitted into the positioning groove for positioning.

[0013] As described above, in a spring-limited removable and replaceable lens structure, the number of the locking structures is at least two sets, and all the locking structures are arranged circumferentially at intervals along the front end of the lens barrel.

[0014] As described above, in a spring-limited removable and replaceable lens structure, the number of springs is at least two sets, and all the springs are arranged circumferentially at intervals along the front end of the lens barrel.

[0015] Another objective of this application is to provide a lens structure for an action camera lens that includes the aforementioned spring-limited detachable and replaceable lens.

[0016] Compared with the prior art, the beneficial effects of this application are as follows:

[0017] This application provides a lens structure with a spring-limited detachable and replaceable lens. The lens structure includes a lens barrel, a first lens, a cap, and a spring. The cap and the front end of the lens barrel are detachably locked together via a snap-fit ​​structure. A spring is provided on the front end of the lens barrel. When the cap is connected to the front end of the lens barrel, the cap compresses the spring, generating an elastic repulsive force. At this time, the cap is limited by the spring, achieving the purpose of locking the lens. This application provides a lens structure that allows for convenient lens replacement at a low cost, avoiding the need for threaded processes on the lens barrel and cap, saving costs, effectively reducing camera usage and maintenance costs, and improving user satisfaction. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0019] Figure 1 This is a structural schematic diagram of an embodiment of this application;

[0020] Figure 2 This is an exploded view of the cover and the whole in an embodiment of this application;

[0021] Figure 3 This is an exploded view of the overall embodiments of this application;

[0022] Figure 4 This is a cross-sectional view of an embodiment of this application, centered on the position of the spring member;

[0023] Figure 5 This is a cross-sectional view of an embodiment of this application, centered on the location of the snap-fit ​​structure;

[0024] Figure 6 This is an exploded view of the cover and the whole according to another embodiment of this application;

[0025] Figure 7 This is an exploded view of another embodiment of this application;

[0026] Figure 8 This is a cross-sectional view of another embodiment of this application, centered on the position of the spring member;

[0027] Figure 9 This is a cross-sectional view of the plane where the cover is located, according to another embodiment of this application. Detailed Implementation

[0028] like Figure 1-9As shown, this application provides a spring-limited detachable and replaceable lens structure, which includes at least a lens barrel 1, a first lens 2 disposed at the front end of the lens barrel 1, and a pressure cap 3 that cooperates with the front end of the lens barrel 1 to lock the first lens 2 on the lens barrel 1. The pressure cap 3 is detachably connected to the front end of the lens barrel 1 through a snap-fit ​​structure. A spring member 5 is provided on the front end of the lens barrel 1. When the pressure cap 3 is connected to the front end of the lens barrel 1, the pressure cap 3 squeezes the spring member 5 to compress it and generate an elastic repulsive force.

[0029] One embodiment of this application discloses a spring-limited detachable and replaceable lens structure, comprising a lens barrel, a first lens, a pressure cap, and a spring member. The pressure cap is detachably locked to the front end of the lens barrel via a snap-fit ​​structure. A spring member is provided on the front end of the lens barrel. When the pressure cap is connected to the front end of the lens barrel, the pressure cap compresses the spring member, generating an elastic repulsive force. At this time, the pressure cap is limited by the spring member, thus achieving the purpose of locking the lens. This application provides a lens structure that allows for convenient lens replacement at a low cost, avoiding the need for additional threading processes on the lens barrel and pressure cap, saving costs, effectively reducing camera usage and maintenance costs, and improving user satisfaction with the product.

[0030] Further, the lens barrel 1 includes a lens barrel body 11 and a connecting flange 12 protruding from the front end of the lens barrel body 11. The pressure cap 3 is rotatably sleeved on the outside of the connecting flange 12. The snap-fit ​​structure is provided between the pressure cap 3 and the connecting flange 12. Specifically, the front end of the lens barrel 1 is provided with a spring mounting position 10 located outside the connecting flange 12, and the spring member 5 is limited and installed on the spring mounting position 10. During installation, the first lens is installed on the lens barrel, the spring member is then installed in the reserved spring mounting position on the lens barrel, and finally the pressure cap is screwed onto the connecting flange through the snap-fit ​​structure. The spring member is compressed and positioned, and the first lens is pressed and fixed to complete the installation.

[0031] In a specific embodiment of this application, the snap-fit ​​structure includes a lens barrel mounting portion 41 disposed on the outer peripheral wall of the connecting flange 12 and a pressure cap mounting portion 42 disposed on the inner peripheral wall of the pressure cap 3. The lens barrel mounting portion 41 and the pressure cap mounting portion 42 can engage with each other. Specifically, a limiting portion 14 is provided on one side of the lens barrel mounting portion 41. When the pressure cap mounting portion 42 engages with the lens barrel mounting portion 41, it can rotate to abut against the limiting portion 14 to restrict rotation. When the pressure cap 3 rotates relative to the connecting flange 12, the front end face of the pressure cap mounting portion 42 rotates to abut against the rear end face of the lens barrel mounting portion 41 to form a snap-fit. By providing four annular notches and four cap mounting portions 42 on the cap, during installation, the annular notches of the cap are aligned with the lens barrel mounting portion 41 on the side wall of the lens barrel, and the cap is moved axially until it contacts the lens barrel. Then, the cap is rotated until the upper surfaces of the four cap mounting portions 42 of the cap contact the lower surface of the lens barrel mounting portion 41, thus restricting the axial displacement of the cap. At the same time, the cap's limiting fillet contacts the limiting portion 14 on the side wall of the lens barrel, and the circumferential portion of the inner wall of the cap contacts the outer portion of the spring and compresses the spring radially. At this point, the cap is completely limited, achieving the purpose of locking the lens. This embodiment avoids adding a threaded process to the lens barrel and the cap, saving costs.

[0032] Furthermore, the front end of the lens barrel 11 is provided with an annular groove 13 located inside the connecting flange 12. A sealing ring 6 is provided in the annular groove 13 to abut against the first lens 2. When the pressure cap 3 is locked onto the lens barrel 1, the first lens 2 squeezes the sealing ring 6 to deform and seal it. The first lens is independent and unaffected relative to the entire lens. The sealing ring is then installed in the annular groove 13, and then the first lens is installed. The spring is then installed in the spring mounting position reserved in the lens barrel. Finally, the pressure cap is screwed on, the spring is compressed and positioned, and the first lens is pressed and fixed to complete the installation. When assembling the first lens and the pressure cap, because the sealing ring is made of rubber material with good compressibility, after the pressure cap is assembled, the sealing ring is compressed under the action of force, and the space between the first lens and the lens barrel is filled by the sealing ring, which can effectively prevent water vapor from entering and achieve the lens waterproof function.

[0033] As a preferred embodiment of this application, such as Figure 2-5As shown, the spring 5 is a thin strip spring, and the spring mounting position is a groove set at the front end of the lens barrel. The spring can be embedded in the groove reserved on the side wall of the lens barrel. At this time, the spring is in an uncompressed state. The cap is pressed down and screwed on in sequence. This process is achieved by setting four annular notches and four cap mounting parts 42 on the cap. During installation, the annular notches of the cap are aligned with the lens barrel mounting parts 41 on the side wall of the lens barrel, and the cap is moved axially until it contacts the lens barrel. Then, the cap is rotated until the upper surface of the four cap mounting parts 42 of the cap contacts the lower surface of the lens barrel mounting parts 41, which restricts the axial displacement of the cap. At the same time, the cap limiting rounded corner contacts the limiting part 14 on the side wall of the lens barrel, and the inner circumference of the cap contacts the outer part of the spring and compresses the spring radially. At this time, the cap is completely limited, which achieves the purpose of locking the lens. This embodiment avoids adding a thread process to the lens barrel and the cap, saving costs. When it is necessary to disassemble and replace the first lens, rotate the cover in the opposite direction until the four annular notches of the cover are on the same horizontal line as the lens barrel mounting part 41 on the side wall of the lens barrel. Then, move the cover away along the axial direction to release the cover limit. Then, disassemble the cover and the first lens in sequence to replace the old first lens with the new one, thus achieving convenient replacement.

[0034] As another preferred embodiment of this application, such as Figure 6-9 As shown, the spring element 5 is a long strip-shaped spring sheet. The spring mounting position is a limiting block located at the front end of the lens barrel. The spring sheet can be embedded in the groove reserved on the side wall of the lens barrel. At this time, the spring sheet is in an uncompressed state. The spring sheet is installed and positioned by the two limiting blocks at the front end of the lens barrel. The cap is pressed down and screwed on in sequence. This process is achieved by setting four annular notches and four cap mounting parts 42 on the cap. During installation, the annular notches of the cap are aligned with the lens barrel mounting parts 41 on the side wall of the lens barrel, and the cap is moved axially until it contacts the lens barrel. Then, the cap is rotated until the upper surface of the four cap mounting parts 42 of the cap contacts the lower surface of the lens barrel mounting parts 41, thus limiting the axial displacement of the cap. The cap mounting parts 42 contact the limiting parts 14. This achieves the purpose of locking the lens. This embodiment avoids adding a thread process to the lens barrel and the cap, saving costs.

[0035] As a further preferred embodiment, the spring member 5 has an outwardly protruding deformation portion 51. The inner wall of the pressure cap 3 presses against the deformation portion 51, causing the spring member 5 to compress and deform. The inner wall of the pressure cap 3 has a positioning groove 31. When the pressure cap 3 is engaged with the lens barrel 1, the positioning groove 31 can rotate to the spring member 5, so that the deformation portion 51 fits into the positioning groove 31 for positioning. The positioning rounded corner deformation portion 51 of the spring sheet cooperates with the positioning groove 31 of the limiting rounded corner of the pressure cap. Because the positioning rounded corner of the spring sheet is smaller than the limiting rounded corner of the pressure cap, the spring sheet is radially squeezed and compressed under the action of elastic force, and the pressure cap is further completely limited.

[0036] Specifically, the number of the snap-fit ​​structures is at least two sets, and all the snap-fit ​​structures are arranged circumferentially at intervals along the front end of the lens barrel 1; the number of the spring members 5 is at least two sets, and all the spring members 5 are arranged circumferentially at intervals along the front end of the lens barrel 1, thereby achieving the purpose of locking the lens. This embodiment avoids adding threading processes to the lens barrel and the cap, thus saving costs.

[0037] This application also provides an action camera lens with the above-described spring-limited detachable and replaceable lens structure, providing a method for convenient and low-cost lens replacement, which can effectively reduce camera usage and maintenance costs and improve user satisfaction with the product.

[0038] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A spring-loaded, detachable, replaceable lens structure, comprising at least a lens barrel (1), a first lens (2) disposed at the front end of the lens barrel (1), and a cap (3) cooperating with the front end of the lens barrel (1) to lock the first lens (2) onto the lens barrel (1), characterized in that: The pressure cap (3) is detachably connected to the front end of the lens barrel (1) via a snap-fit ​​structure. A spring (5) is provided on the front end of the lens barrel (1). When the pressure cap (3) is connected to the front end of the lens barrel (1), the pressure cap (3) squeezes the spring (5) to compress it and generate an elastic repulsive force. There are at least two sets of springs (5). All the springs (5) are arranged circumferentially at intervals along the front end of the lens barrel (1). The spring (5) has an outwardly protruding deformation part (51). The inner wall of the pressure cap (3) presses against the deformation part (51) to compress and deform the spring (5).

2. A spring-limited removable replacement lens lens structure according to claim 1, wherein: The lens barrel (1) includes a lens barrel body (11) and a connecting flange (12) protruding from the front end of the lens barrel body (11). The pressure cap (3) is rotatably sleeved on the outside of the connecting flange (12). The snap-fit ​​structure is provided between the pressure cap (3) and the connecting flange (12).

3. A spring-limited removable replacement lens lens structure according to claim 2, wherein: The snap-fit ​​structure includes a lens barrel mounting part (41) on the outer peripheral wall of the connecting protrusion (12) and a pressure cap mounting part (42) on the inner peripheral wall of the pressure cap (3). The lens barrel mounting part (41) and the pressure cap mounting part (42) can be engaged with each other.

4. The lens structure of claim 3, wherein: A limiting part (14) is provided on one side of the lens barrel mounting part (41). When the cap mounting part (42) is engaged with the lens barrel mounting part (41), it can rotate to abut against the limiting part (14) to restrict rotation; and / or When the cap (3) rotates relative to the connecting protrusion (12), the front end face of the cap mounting part (42) rotates to abut against the rear end face of the lens barrel mounting part (41) to form a snap-fit.

5. The lens structure of claim 2, wherein: The front end of the lens barrel body (11) is provided with an annular groove (13) inside the connecting protrusion (12). A sealing ring (6) is provided in the annular groove (13) to abut against the first lens (2). When the pressure cap (3) is locked on the lens barrel (1), the first lens (2) squeezes the sealing ring (6) to deform and seal it.

6. The lens structure of claim 2, wherein: The front end of the lens barrel (1) is provided with a spring mounting position (10) outside the connecting flange (12), and the spring component (5) is limited and installed on the spring mounting position (10).

7. The lens structure of claim 1, wherein: The inner wall of the pressure cap (3) has a positioning groove (31). When the pressure cap (3) is engaged with the lens barrel (1), the positioning groove (31) can be rotated to the spring (5) so that the deformable part (51) can be fitted into the positioning groove (31) for positioning.

8. The lens structure of claim 1, wherein: The number of the snap-fit ​​structures is at least two sets, and all the snap-fit ​​structures are arranged circumferentially at intervals along the front end of the lens barrel (1).

9. A sports camera lens characterized by, A lens structure having a spring-limited detachable and replaceable lens as described in any one of claims 1 to 8.

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