Hidden torsional spring lens cover structure

Abstract

The utility model relates to the technical field of lens covers, in particular to a hidden torsional spring lens cover structure, which mainly comprises a lens cover seat, a rotating seat, a rotating lens cover, a rotating block, a through hole, a rotating shaft, a first torsional spring groove, a second torsional spring groove, a torsional spring and a clamping component. According to the hidden type torsional spring lens cover structure, the first torsional spring groove formed in one side of the rotating block and the second torsional spring groove formed in the second rotating seat are used for containing the torsional spring, the two ends of the torsional spring are inserted into the first torsional spring groove and the second torsional spring groove respectively, and then the torsional spring is hidden; the rotating shaft penetrates through the rotating seat and the rotating block, the lens cover seat and the rotating lens cover are fixedly installed, the lens cover seat and the rotating lens cover are limited through the clamping component, when limiting of the clamping component is canceled, the torsional spring drives the rotating lens cover to turn away from the lens cover seat, installation is convenient and fast, the torsional spring is hidden, exposure of the torsional spring is avoided, and the service life of the rotating lens cover is prolonged. Potential safety hazards caused by the exposed torsion spring are effectively prevented, and attractiveness of products is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of lens cover technology, specifically a hidden torsion spring lens cover structure. Background Technology

[0002] Existing imaging devices, such as night vision devices and handheld infrared measuring devices, typically require lens caps to protect the lens and prevent damage that could affect image quality. For ease of operation, these devices are usually equipped with flip-up lens caps. However, existing flip-up lens caps have a design flaw: they need to automatically return to their original position after being opened. This means that a torsion spring must be added to ensure that the flipping mechanism automatically rotates the opened lens cap to the designated position under the force of the torsion spring.

[0003] However, the problem with this design is that the torsion spring is not only difficult to install, but it is also exposed after installation or when the flip structure is opened. This not only affects the aesthetics of the product, but more importantly, it may pose a potential safety hazard to the user. For example, accidentally touching the exposed spring may cause injury. Utility Model Content

[0004] The purpose of this invention is to provide a concealed torsion spring lens cover structure to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A concealed torsion spring lens cover structure, comprising:

[0007] Lens cap mount;

[0008] A rotating mount is located on the side of the lens cap mount;

[0009] Rotate the lens cap, which is located on the end face of the lens cap holder.

[0010] Rotating block, connecting the rotating lens cap and the rotating base;

[0011] A flipping component is located between the rotating base and the rotating block, used to drive the rotating block and the rotating lens cap away from the lens cap base and flip them over;

[0012] A locking component is provided on the lens cap holder and the rotating lens cap to limit the rotation of the lens cap.

[0013] Preferably, the flipping component includes a through hole that passes through the rotating base and the rotating block. A rotating shaft is disposed inside the through hole, and the rotating shaft is fixedly connected to the rotating base and rotatably connected to the rotating block.

[0014] Preferably, the rotation includes a first rotating seat and a second rotating seat. On one side of the rotating block close to the second rotating seat, a first torsion spring groove is provided. At the position corresponding to the first torsion spring groove on the second rotating seat, a second torsion spring groove is provided. A torsion spring is sleeved on the rotating shaft. One end of the torsion spring is arranged in the second torsion spring groove, and the other end is arranged in the first torsion spring groove, which is used to drive the rotating lens cap to flip away from the lens cap seat.

[0015] Preferably, a first limiting strip is arranged on the rotating block, and a second limiting strip is arranged on the lens cap seat. The second limiting strip is located between the first rotating seat and the second rotating seat, and the second limiting strip and the first limiting strip are on the same straight line.

[0016] Preferably, the engaging component includes a movable plate. The movable plate is slidably arranged on the rotating lens cap, and an elastic component is arranged between the movable plate and the rotating lens cap for resetting the movable plate.

[0017] Preferably, a second clamping strip is arranged on the movable plate. There is a clamping cavity between the second clamping strip and the rotating lens cap. At the position corresponding to the clamping cavity on the lens cap seat, a first clamping strip is arranged. The first clamping strip is annular.

[0018] Preferably, the elastic component includes a fixing plate. The fixing plate is arranged on one side of the rotating lens cap close to the lens cap seat. The fixing plate has a "C" - shaped structure, and an activity cavity is provided on the rotating lens cap.

[0019] Preferably, sliding grooves are provided on both sides of the activity cavity. At the positions corresponding to the sliding grooves on the movable plate, sliders are provided. The sliders are slidably arranged in the sliding grooves. One side of the movable plate close to the rotating lens cap is connected with a pressing block. The pressing block is slidably arranged in the activity cavity and one end extends out of the rotating lens cap.

[0020] Preferably, positioning columns are arranged in the fixing plate. At the positions corresponding to the positioning columns on the pressing block, fixing grooves are provided. At one end of the movable plate far from the fixing groove, a blocking block is arranged. The blocking block is located on the side of the fixing plate far from the positioning column.

[0021] Preferably, a reset spring is arranged between the movable plate and the fixing plate. One end of the reset spring is sleeved on the positioning column, and the other end is located in the fixing groove. The reset spring is used to push the pressing block to extend out of the rotating lens cap.

[0022] Compared with the prior art, the beneficial effects of the present utility model are:

[0023] This invention utilizes a first torsion spring groove on one side of the rotating block and a second torsion spring groove on the second rotating seat to house the torsion spring. By inserting both ends of the torsion spring into the first and second torsion spring grooves respectively, the torsion spring is hidden. Then, a rotating shaft passes through the rotating seat and the rotating block to install and fix the lens cap holder and the rotating lens cap. The lens cap holder and the rotating lens cap are limited by a locking component. When the locking component is released, the torsion spring drives the rotating lens cap away from the lens cap holder and flips it over. The installation is convenient, and the torsion spring is hidden, avoiding exposure and effectively preventing the safety hazards caused by an exposed torsion spring, thus ensuring the aesthetics of the product. Attached Figure Description

[0024] Figure 1 This is a front-view three-dimensional structural diagram of the present invention;

[0025] Figure 2 This is a rear-view three-dimensional structural diagram of the present invention;

[0026] Figure 3 This is a cross-sectional three-dimensional structural diagram of the present invention;

[0027] Figure 4 A three-dimensional structural diagram of the lens cap mount;

[0028] Figure 5 A three-dimensional structural diagram of the rotating lens cap, pressing block, and movable plate;

[0029] Figure 6 A three-dimensional structural diagram of the rotating lens cap;

[0030] Figure 7 This is a front-view three-dimensional structural diagram of the pressing block and the movable plate;

[0031] Figure 8 This is a rear-view three-dimensional structural diagram of the pressing block and the movable plate.

[0032] In the diagram: 1. Lens cap holder; 101. First locking strip; 2. Rotating lens cap; 3. Rotating block; 4. Pressing block; 5. Rotating seat; 501. First rotating seat; 502. Second rotating seat; 6. Through hole; 7. Rotating shaft; 8. First limiting strip; 9. Fixing plate; 901. Movable cavity; 10. Positioning post; 11. Return spring; 12. First torsion spring groove; 13. Torsion spring; 14. Movable plate; 15. Second locking strip; 16. Second torsion spring groove; 17. Second limiting strip; 18. Slide groove; 19. Slider; 20. Stop block; 21. Fixing groove. Detailed Implementation

[0033] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0034] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0035] like Figures 1-8 As shown, this application provides a concealed torsion spring lens cover structure, including: a lens cover base 1; a rotating base 5 disposed on the side of the lens cover base 1; a rotating lens cover 2 disposed on the end face of the lens cover base 1; a rotating block 3 connecting the rotating lens cover 2 and the rotating base 5; and a flipping component disposed between the rotating base 5 and the rotating block 3, used to drive the rotating block 3 and the rotating lens cover 2 away from the lens cover base 1 and flip them over. The flipping component includes a through hole 6, which passes through the rotating base 5 and the rotating block 3. A rotating shaft 7 is disposed in the through hole 6, and the rotating shaft 7 is fixedly connected to the rotating base 5 and rotates with the rotating block 3. The connection includes a first rotating seat 501 and a second rotating seat 502. A first torsion spring groove 12 is provided on the side of the rotating block 3 near the second rotating seat 502. A second torsion spring groove 16 is provided on the second rotating seat 502 at the corresponding position of the first torsion spring groove 12. A torsion spring 13 is sleeved on the rotating shaft 7. One end of the torsion spring 13 is located in the second torsion spring groove 16 and the other end is located in the first torsion spring groove 12. It is used to drive the rotating lens cover 2 away from the lens cover seat 1 and flip it over. A locking component is provided on the lens cover seat 1 and the rotating lens cover 2 to limit the rotation of the lens cover 2.

[0036] In this embodiment: the torsion spring 13 is placed in the first torsion spring groove 12 opened on one side of the rotating block 3 and the second torsion spring groove 16 opened on the second rotating seat 502. The two ends of the torsion spring 13 are inserted into the first torsion spring groove 12 and the second torsion spring groove 16 respectively, thereby hiding the torsion spring 13. Then, the lens cover seat 1 and the rotating lens cover 2 are installed and fixed by the rotating shaft 7 passing through the rotating seat 5 and the rotating block 3. The lens cover seat 1 and the rotating lens cover 2 are limited by the locking component. When the locking component is released, the torsion spring 13 drives the rotating lens cover 2 away from the lens cover seat 1 and flips it over. The installation is convenient and the torsion spring 13 is hidden, avoiding the exposure of the torsion spring 13 and effectively preventing the safety hazards caused by the exposed torsion spring 13, thus ensuring the aesthetics of the product.

[0037] Specifically, such as Figure 1 and Figure 4As shown, a first limiting strip 8 is provided on the rotating block 3, and a second limiting strip 17 is provided on the lens cap base 1. The second limiting strip 17 is located between the first rotating seat 501 and the second rotating seat 502, and the second limiting strip 17 and the first limiting strip 8 are on the same straight line.

[0038] In this embodiment: when the torsion spring 13 drives the rotating lens cap 2 to flip away from the lens cap base 1, the second limiting strip 17 blocks the first limiting strip 8, which can ensure the fixation of the angle of the rotating lens cap 2 after flipping, and ensure that the rotating lens cap 2 can automatically rotate to a specified position under the action of the torsion spring 13 after being opened.

[0039] Specifically, as Figure 3 、 Figures 5-8 shown, the engaging component includes a movable plate 14. The movable plate 14 is slidably arranged on the rotating lens cap 2, and an elastic component is arranged between the movable plate 14 and the rotating lens cap 2 for resetting the movable plate 14. A second clamping strip 15 is arranged on the movable plate 14, and there is a clamping cavity between the second clamping strip 15 and the rotating lens cap 2. A first clamping strip 101 is arranged at the position of the corresponding clamping cavity on the lens cap base 1, and the first clamping strip 101 is annular; the elastic component includes a fixing plate 9. The fixing plate 9 is arranged on one side of the rotating lens cap 2 close to the lens cap base 1, and the fixing plate 9 is in a "U" - shaped structure. An activity cavity 901 is opened on the rotating lens cap 2, and a return spring 11 is arranged between the movable plate 14 and the fixing plate 9;

[0040] Chute grooves 18 are opened on both sides of the activity cavity 901. Sliders 19 are arranged at the positions of the corresponding chute grooves 18 on the movable plate 14. The sliders 19 are slidably arranged in the chute grooves 18. A pressing block 4 is connected to one side of the movable plate 14 close to the rotating lens cap 2. The pressing block 4 is slidably arranged in the activity cavity 901 and one end extends out of the rotating lens cap 2; a positioning column 10 is arranged in the fixing plate 9. A fixing groove 21 is opened at the position of the corresponding positioning column 10 on the pressing block 4. One end of the return spring 11 is sleeved on the positioning column 10, and the other end is located in the fixing groove 21. A stop block 20 is arranged at one end of the movable plate 14 far from the fixing groove 21. The stop block 20 is located on one side of the fixing plate 9 far from the positioning column 10. The return spring 11 is used to push the pressing block 4 to extend out of the rotating lens cap 2.

[0041] In this embodiment: By pressing the pressing block 4, the pressing block 4 compresses the reset spring 11. At this time, the pressing block 4 drives the movable plate 14 to move together, causing the second locking strip 15 to move away from the first locking strip 101, thereby canceling the limitation on the rotating lens cover 2. At this time, the slide groove 18 and the slider 19 cooperate to limit the sliding of the movable plate 14. At the same time, the torsion spring 13 drives the rotating lens cover 2 to flip. When the pressing block 4 is released, the reset spring 11 pushes the pressing block 4 to reset. The positioning post 10 positions the reset spring 11. At this time, the stop block 20 stops the movable plate. 14 limits the movement to prevent the pressing block 4 from disengaging from the rotating lens cover 2, facilitating the closing of the rotating lens cover 2 and the lens cover seat 1. When the rotating lens cover 2 approaches the lens cover seat 1, the second locking strip 15 contacts the first locking strip 101 and pushes the second locking strip 15 to move the movable plate 14 toward the stop block 20. At this time, the reset spring 11 is compressed until the first locking strip 101 enters the engagement cavity. Then the reset spring 11 resets and drives the second locking strip 15 to reset, thus limiting the rotating lens cover 2 and preventing the rotating lens cover 2 from flipping over.

[0042] Specifically, this solution involves using a first torsion spring groove 12 on one side of the rotating block 3 and a second torsion spring groove 16 on the second rotating seat 502 to house the torsion spring 13. During installation, the main body of the torsion spring 13 is first inserted into the first torsion spring groove 12, with one end limited by the first torsion spring groove 12 and the other end extending out of the first torsion spring groove 12. At this time, the elastic deformation of the torsion spring 13 can press the end of the torsion spring 13 extending out of the first torsion spring groove 12 into the first torsion spring groove 12. Then, the rotating block 3 is placed into the rotating seat 5, aligning the first torsion spring groove 12 and the second torsion spring groove 16. The compressed end of the torsion spring 13 returns to its original shape and enters the second torsion spring groove 16. Then, the rotating shaft 7 passes through the rotating seat 5 and the rotating block 3, thus completing the installation of the lens cover seat 1 and the rotating lens cover 2. The lens cover seat 1 and the rotating lens cover 2 are limited by the locking component. When the locking component is released, the torsion spring 13 drives the rotating lens cover 2 away from the lens cover seat 1 and flips it over. The installation is convenient and the torsion spring 13 is hidden, avoiding the exposure of the torsion spring 13 and effectively preventing the safety hazards caused by the exposed torsion spring 13, thus ensuring the aesthetics of the product.

[0043] When the torsion spring 13 drives the rotating lens cover 2 to flip away from the lens cover seat 1, the second limiting strip 17 blocks the first limiting strip 8, which can ensure that the angle of the rotating lens cover 2 is fixed after flipping, and ensure that the rotating lens cover 2 can automatically rotate to the designated position under the action of the torsion spring 13 after opening.

[0044] By pressing the pressing block 4, the pressing block 4 compresses the reset spring 11. At this time, the pressing block 4 moves the movable plate 14 together, causing the second locking strip 15 to move away from the first locking strip 101, thereby canceling the restriction on the rotating lens cover 2. At this time, the slide groove 18 and the slider 19 cooperate to limit the sliding of the movable plate 14. At the same time, the torsion spring 13 drives the rotating lens cover 2 to flip. When the pressing block 4 is released, the reset spring 11 pushes the pressing block 4 to reset. The positioning post 10 positions the reset spring 11. At this time, the stop block 20 limits the movable plate 14. The position prevents the pressing block 4 from disengaging from the rotating lens cover 2, facilitating the closure of the rotating lens cover 2 and the lens cover seat 1. When the rotating lens cover 2 approaches the lens cover seat 1, the second locking strip 15 contacts the first locking strip 101 and pushes the second locking strip 15 to move the movable plate 14 toward the stop block 20. At this time, the reset spring 11 is compressed until the first locking strip 101 enters the engagement cavity. Then the reset spring 11 resets and drives the second locking strip 15 to reset, thus limiting the rotating lens cover 2 and preventing the rotating lens cover 2 from flipping.

[0045] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary; within the framework of this invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of this invention as described above, which are not provided in the details for the sake of brevity.

[0046] This utility model is intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A concealed torsion spring lens cover structure, characterized in that, include: Lens cap mount (1); A rotating base (5) is disposed on the side of the lens cover base (1); Rotate the lens cap (2), which is located on the end face of the lens cap holder (1). Rotating block (3) connects the rotating lens cover (2) and the rotating base (5); A flipping component is disposed between the rotating base (5) and the rotating block (3) to drive the rotating block (3) and the rotating lens cap (2) away from the lens cap base (1) and flip them over; A locking component is provided on the lens cover seat (1) and the rotating lens cover (2) for limiting the rotation lens cover (2).

2. The concealed torsion spring lens cover structure according to claim 1, characterized in that, The flipping component includes a through hole (6) that passes through the rotating seat (5) and the rotating block (3). A rotating shaft (7) is provided inside the through hole (6). The rotating shaft (7) is fixedly connected to the rotating seat (5) and rotatably connected to the rotating block (3).

3. The concealed torsion spring lens cover structure according to claim 2, characterized in that, The rotating seat (5) includes a first rotating seat (501) and a second rotating seat (502). The rotating block (3) has a first torsion spring groove (12) on the side near the second rotating seat (502). The second rotating seat (502) has a second torsion spring groove (16) at the position corresponding to the first torsion spring groove (12). A torsion spring (13) is sleeved on the rotating shaft (7). One end of the torsion spring (13) is set in the second torsion spring groove (16), and the other end is set in the first torsion spring groove (12).

4. The concealed torsion spring lens cover structure according to claim 3, characterized in that, The rotating block (3) is provided with a first limiting strip (8), and the lens cover seat (1) is provided with a second limiting strip (17). The second limiting strip (17) is located between the first rotating seat (501) and the second rotating seat (502), and the second limiting strip (17) and the first limiting strip (8) are on the same line.

5. The concealed torsion spring lens cover structure according to claim 1, characterized in that, The engaging component includes a movable plate (14), which is slidably disposed on the rotating lens cover (2), and an elastic component is provided between the movable plate (14) and the rotating lens cover (2) for resetting the movable plate (14).

6. The concealed torsion spring lens cover structure according to claim 5, characterized in that, The movable plate (14) is provided with a second locking strip (15), and there is a locking cavity between the second locking strip (15) and the rotating lens cover (2). The lens cover seat (1) is provided with a first locking strip (101) at the position corresponding to the locking cavity. The first locking strip (101) is annular.

7. The concealed torsion spring lens cover structure according to claim 6, characterized in that, The elastic component includes a fixing plate (9), which is disposed on the side of the rotating lens cover (2) near the lens cover seat (1), and the rotating lens cover (2) has a movable cavity (901).

8. The concealed torsion spring lens cover structure according to claim 7, characterized in that, The movable cavity (901) has grooves (18) on both sides. The movable plate (14) is provided with a slider (19) at the position corresponding to the groove (18). The slider (19) is slidably disposed in the groove (18). The movable plate (14) is connected to a pressing block (4) on the side near the rotating lens cover (2). The pressing block (4) is slidably disposed in the movable cavity (901) and one end extends out of the rotating lens cover (2).

9. A concealed torsion spring lens cover structure according to claim 8, characterized in that, The fixed plate (9) is provided with a positioning post (10), and the pressing block (4) is provided with a fixing groove (21) at the position corresponding to the positioning post (10). The movable plate (14) is provided with a stop block (20) at one end away from the fixing groove (21). The stop block (20) is located on the side of the fixed plate (9) away from the positioning post (10).

10. A concealed torsion spring lens cover structure according to claim 9, characterized in that, A reset spring (11) is provided between the movable plate (14) and the fixed plate (9). One end of the reset spring (11) is sleeved on the positioning post (10), and the other end is located in the fixed groove (21). The reset spring (11) is used to push the pressing block (4) to extend out of the rotating lens cover (2).

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