A double-lens support and a driving recorder using the same

Abstract

This utility model discloses a dual-lens bracket and a dashcam using the bracket, comprising a main housing with a cavity extending through the front and rear of the housing. A front-view lens and a rear-view lens, respectively facing forward and backward, are disposed within the cavity. The front-view lens is housed in an adjustable forward-facing lens mount, and the rear-view lens is housed in an adjustable rear-facing lens mount. The front-view and rear-view lens mounts extend through the front and rear ends of the main housing, respectively. This through-and-coaxial arrangement of the two cameras ensures that both cameras can adjust their shooting angles while significantly saving space, reducing the protruding area, thickness, and cost of the dashcam.

Description

Technical Field

[0001] This utility model relates to a dual-lens dashcam, and more particularly to a dual-lens bracket and a dashcam using the bracket. Background Technology

[0002] With advancements in technology and the increasing intelligence of automobiles, dashcams have become an indispensable electronic device in vehicles. Besides recording the front of the vehicle, dashcams are increasingly recording / monitoring images from behind (e.g., inside the car). However, installation space is extremely limited for both factory-installed and aftermarket dashcams. This is especially true for devices that integrate a rearview mirror and dashcam functionality, as most of the mirror surface must be used, plus space must be reserved for front and rear cameras, and some mirror space must be used for the image display screen; therefore, space is particularly tight. There are dual-lens dashcam solutions, with the rear camera using a miniature under-display camera similar to a smartphone's front camera. However, this solution suffers from unclear images, no adjustable shooting angle (the rearview mirror's viewing angle and the camera's shooting angle cannot be simultaneously covered), and the front camera installation requires a separate increase in the dashcam's thickness, making the device bulky and excessively thick. Summary of the Invention

[0003] The main technical problem to be solved by this utility model is to provide a dual-lens bracket and a dashcam using the bracket, which reduces cost and device thickness while ensuring that the front and rear cameras are adjustable.

[0004] To address the aforementioned technical problems, this utility model provides a dual-lens bracket, comprising a main housing with a cavity extending through the front and rear of the housing. A front-view lens and a rear-view lens, respectively facing forward and backward, are disposed within the cavity. The front-view lens is housed in an adjustable forward-facing lens mount, and the rear-view lens is housed in an adjustable rear-facing lens mount. The front-view and rear-view lens mounts extend through the front and rear ends of the main housing, respectively. This coaxial arrangement of the two cameras (front-view and rear-view lenses) significantly saves space, reduces the protruding area of ​​the dashcam, decreases its thickness, and lowers costs.

[0005] In implementation, the front-view lens mount includes a first bowl-shaped body with a hemispherical outer surface and a first cylindrical window connected to the central axis of the first bowl-shaped body. The front-view lens is fixed inside the front-view lens mount and its shooting angle faces outward from the first cylindrical window, which extends beyond the front end face of the main housing. The rear-view lens mount includes a second bowl-shaped body with a hemispherical outer surface and a second cylindrical window connected to the central axis of the second bowl-shaped body. The rear-view lens is fixed inside the rear-view lens mount and its shooting angle faces outward from the second cylindrical window, which extends beyond the rear end face of the main housing. With two cameras facing forward and backward respectively, and the cylindrical windows allowing for adjustment of the camera's shooting angle by sliding, the adjustment is convenient, can be adjusted simultaneously from both ends, is easy to apply force to, and has a simple structure.

[0006] In implementation, the cavity portion comprises a front lens mount limiting body with a circular hole on the main housing at the front, and a rear lens mount baffle with a lens mount through hole at the rear. The front lens mount is movably fitted within the front lens mount limiting body. A first bowl-shaped body is limited by the circular hole, and a first cylindrical window extends outside the circular hole. By moving the first cylindrical window, the first bowl-shaped body can rotate within the circular hole to switch the orientation of the first cylindrical window. The rear lens mount is movably fitted within the rear lens mount baffle. A second bowl-shaped body is limited by the lens mount through hole, and a second cylindrical window extends outside the lens mount through hole. By moving the second cylindrical window, the second bowl-shaped body can rotate within the lens mount through hole to switch the orientation of the second cylindrical window. This structure is simple, reliable, and inexpensive.

[0007] In implementation, a first wiring notch is provided at the edge of the first bowl-shaped body to allow the forward-viewing lens line to pass through; a second wiring notch is provided at the edge of the second bowl-shaped body to allow the rear-viewing lens line to pass through. This structure facilitates the wiring layout and does not affect the adjustment of the shooting angle.

[0008] In implementation, the cavity is located on one side of the main housing, and a rearview mirror is provided on the rear surface of the main housing, covering the entire area of ​​the rear surface of the main housing except for the cavity area; a rearview lens mount baffle is also provided, which serves as a baffle for the cavity area on the rear surface of the main housing. This structural layout combines the vehicle rearview mirror with the dual-camera structure, saving front space, maximizing the retention of the rearview mirror, ensuring the adjustability of the rear camera, and minimizing the thickness and protruding area of ​​the device, facilitating device fixation during use.

[0009] In implementation, a lens mount pressure plate is provided between the front-view lens mount and the rear-view lens mount to divide the moving space of the two lens mounts; the lens mount pressure plate is fixedly connected to the main housing. This structural design improves structural reliability, ensures that the two cameras do not interfere with each other, and reduces structural costs.

[0010] In implementation, the lens mount pressure plate includes: an annular base plate with a circular through hole in the center; and at least three rotating limiting blocks extending vertically to both sides distributed around the edge of the through hole on the annular base plate. The tail ends of the front-view lens mount and the rear-view lens mount are embedded and contacted with the inner walls of the rotating limiting blocks, and the motion reference planes of the front-view lens mount and the rear-view lens mount are both located outside the base plane of the annular base plate. This structure is simple and reliable, easy to manufacture and assemble, and its dual-purpose design reduces costs.

[0011] In implementation, with the annular base plate as the base, the facing surfaces of each rotating limiting block are contact slopes that are thicker at the bottom and thinner at the outside; the tail ends of the front and rear lens mounts that contact the rotating limiting blocks are both arc surfaces with gradually decreasing dimensions. This structure is simple and ensures the smoothness and accuracy of lens mount adjustment.

[0012] In implementation, the inner sidewalls of the front and rear lens mounts are respectively provided with a first limiting protrusion and a second limiting protrusion. Both the first and second limiting protrusions are positioned between two rotating limiting blocks to prevent axial rotation of the front and rear lens mounts. This structure ensures that the orientation of the image remains unchanged during lens adjustment, guaranteeing the imaging effect of the adjustable lens, and is simple and reliable.

[0013] This patent also discloses a dashcam that uses the dual-lens bracket described above. This dashcam features adjustable front and rear lenses, and the centralized arrangement of the front and rear lenses ensures maximum flatness of the front and rear space, resulting in a thin, lightweight product with low production costs.

[0014] The beneficial effects of this utility model are as follows: A dual-lens bracket and a dashcam using the bracket include a main housing. A cavity penetrating the front and rear of the main housing is provided on the main housing. A front-view lens and a rear-view lens, respectively facing forward and backward, are disposed within the cavity. The front-view lens is housed in an adjustable forward-facing lens mount, and the rear-view lens is housed in an adjustable rear-facing lens mount. The front-view and rear-view lens mounts penetrate the front and rear faces of the main housing, respectively. This through-and-coaxial arrangement of the two cameras ensures that both cameras can adjust their shooting angles while significantly saving space, reducing the protruding area of ​​the dashcam, decreasing its thickness, and lowering costs. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of an assembly structure according to an embodiment of the present invention;

[0016] Figure 2 for Figure 1 Another angle schematic diagram of the partial structure of the dual-lens section in the embodiment shown;

[0017] Figure 3This is a schematic diagram of the mating structure of the front lens mount, the rear lens mount, and the lens mount pressure plate;

[0018] Figure 4 This is a schematic diagram of the external structure of the assembled dashcam. Detailed Implementation

[0019] The present invention will now be described in further detail with reference to specific embodiments and accompanying drawings.

[0020] Please refer to Figure 1 The illustrated embodiment provides a dual-lens bracket, comprising a main housing 1. A cavity extending through the front and rear of the main housing 1 is provided within the main housing 1. A front-viewing lens 2 and a rear-viewing lens 3, respectively facing forward and backward, are disposed within the cavity. The front-viewing lens 2 is housed in an adjustable forward-facing lens mount 5, and the rear-viewing lens 3 is housed in an adjustable rear-facing lens mount 7. The front-viewing lens mount 5 and the rear-viewing lens mount 7 extend through the front and rear ends of the main housing 1, respectively. This through-type structure and the bidirectional coaxial arrangement of the lenses improve structural reusability, maximize structural compactness, reduce volume, minimize protruding areas, facilitate the installation of other functional areas on the front and back, and enhance ease of use during subsequent installation and fixation.

[0021] Preferred during implementation, such as Figure 1 , 2 As shown in Figure 3, the front-view lens mount 5 includes a first bowl-shaped body 5a with a hemispherical outer surface and a first cylindrical window 5b connected to the central axis of the first bowl-shaped body 5a. The front-view lens 2 is fixed inside the front-view lens mount 5 and its shooting angle faces outward from the first cylindrical window 5b. The first cylindrical window 5b extends beyond the front end face of the main housing 1. The rear-view lens mount 7 includes a second bowl-shaped body 7a with a hemispherical outer surface and a second cylindrical window 7b connected to the central axis of the second bowl-shaped body 7a. The rear-view lens 3 is fixed inside the rear-view lens mount 7 and its shooting angle faces outward from the second cylindrical window 7b. The second cylindrical window 7b extends beyond the rear end face of the main housing 1. The hemispherical bowl-shaped body has low rotational adjustment resistance and a large adjustment range. The cylindrical window not only facilitates lens installation but can also be used as an operating part for adjusting the angle, achieving dual functionality, reducing costs, and saving space.

[0022] Preferred during implementation, such as Figure 2 , 4As shown, the cavity portion has a front lens mount limiting body 4 with a circular hole on the main housing 1 at the front, and a rear lens mount baffle 8 with a lens mount through hole 8c at the rear. The front lens mount 5 is movably fitted within the front lens mount limiting body 4. The first bowl-shaped body 5a is limited by the circular hole, and the first columnar window 5b extends outside the circular hole. By moving the first columnar window 5b, the first bowl-shaped body 5a can rotate within the circular hole to switch the orientation of the first columnar window 5b. The rear lens mount 7 is movably fitted within the rear lens mount baffle 8. The second bowl-shaped body 7a is limited by the lens mount through hole 8c, and the second columnar window 7b extends outside the lens mount through hole 8c. By moving the second columnar window 7b, the second bowl-shaped body 7a can rotate within the lens mount through hole 8c to switch the orientation of the second columnar window 7b. The lens mount achieves its positioning and adjustment functions through the fit between the bowl-shaped body and the hole. This structure is simple, reliable, and inexpensive, and it can guarantee the adjustment function and service life even without lubrication or auxiliary mechanisms.

[0023] Preferred during implementation, such as Figure 2 As shown, a first wiring notch 5c for the passage of the front-view lens 2 is provided at the edge of the first bowl-shaped body 5a; a second wiring notch 7c for the passage of the rear-view lens 3 is provided at the edge of the second bowl-shaped body 7a. This structure facilitates wiring layout and does not affect the adjustment of the shooting angle. Because lens angle adjustment is an occasional behavior and the deviation from the dimensions is not too large, this simple structure can fully guarantee the wiring connection between the lens and the motherboard with high reliability and low cost.

[0024] One embodiment of the complete housing during implementation, such as Figure 1 , 4 As shown, the cavity is located on one side of the main housing 1, and a rearview mirror 10 is provided on the rear surface of the main housing 1, covering the entire area of ​​the rear surface of the main housing 1 except for the cavity area; a rearview lens mount baffle 8 is also provided, which serves as a baffle for the cavity area on the rear surface of the main housing 1. This structure is easy to assemble and has low production costs, making it particularly suitable for rearview mirror dashcam integrated devices. In implementation, a PC decorative panel 9 can be further provided outside the rearview lens mount baffle 8, making this area more integrated with the rearview mirror 10 and more aesthetically pleasing. In implementation, a sub-mirror display screen 11 can be provided in a partial area of ​​the rearview mirror 10, applicable in scenarios where a display screen is required.

[0025] Preferred during implementation, such as Figure 1 , 2 As shown in Figure 3, a lens mount pressure plate 6 is also provided between the front-view lens mount 5 and the rear-view lens mount 7 to divide the moving space of the two lens mounts; the lens mount pressure plate 6 is fixedly connected to the main housing 1. This structural design improves structural reliability, ensures that the two cameras do not interfere with each other, and reduces structural costs.

[0026] Specifically, the lens mount pressure plate 6 includes: an annular base plate 6a with a circular through hole in the center; and at least three rotating limiting blocks 6b extending vertically to both sides (six in the illustrated embodiment) distributed around the edge of the through hole of the annular base plate 6a. The tail ends of the front-view lens mount 5 and the rear-view lens mount 7 are both embedded and contacted with the inner wall of the rotating limiting blocks 6b, and the motion reference planes of the front-view lens mount 5 and the rear-view lens mount 7 are both located outside the base plane of the annular base plate 6a. The contact engagement between the rotating limiting blocks 6b and the tail ends of the lens mounts reduces resistance and ensures adjustability. This structure is simple and reliable, easy to manufacture and assemble, and its dual-purpose design reduces costs.

[0027] Preferred during implementation, such as Figure 2 , 3 As shown, with the reference surface of the annular substrate 6a as the base, the facing surfaces of each rotating limiting block 6b are contact inclined surfaces 6c that are thicker at the bottom and thinner at the outside; the tail ends of the front lens mount 5 and the rear lens mount 7 that contact the rotating limiting block 6b are both arc surfaces with gradually decreasing dimensions. See the first constricted arc edge 5e at the tail end of the front lens mount 5 and the second constricted arc edge 7e at the tail end of the rear lens mount 7.

[0028] Preferred during implementation, such as Figure 1 , 2 As shown in Figure 3, the inner side outer walls of the front lens mount 5 and the rear lens mount 7 are respectively provided with a first limiting protrusion 5d and a second limiting protrusion 7d. Both the first limiting protrusion 5d and the second limiting protrusion 7d are positioned between two rotating limiting blocks 6b to prevent axial rotation of the front lens mount 5 and the rear lens mount 7. Of course, limiting grooves can also be provided inside the front lens mount limiting body 4 of the main housing 1 and inside the rear lens mount limiting body 8b of the rear lens mount baffle 8 to prevent unrestricted rotation when the angle is adjusted to the point where the first limiting protrusion 5d and the second limiting protrusion 7d are close to disengaging from the lens mount pressure plate 6. This improves the reliability of the limiting. This structure ensures that the direction of the image remains unchanged when the lens is adjusted, guaranteeing the imaging effect of the adjustable lens, and is simple and reliable.

[0029] Preferred during implementation, such as Figure 2 As shown, the rear-view lens mount baffle 8 includes: a planar substrate 8a serving as the main shielding element, with a circular hole (i.e., a rear-view lens mount through hole) 8c on the planar substrate 8a, and a raised annular rear-view lens mount limiting body 8b corresponding to the circular hole on the planar substrate 8a; the second bowl-shaped body 7a of the rear-view lens mount 7 contacts and engages with the rear-view lens mount limiting body 8b to achieve lens angle adjustment. The rear-view lens mount baffle 8 serves as both a sealing plate at the rear of the cavity and a functional plate for lens adjustment, thus saving functions, reducing costs, and minimizing size.

[0030] In the production and assembly of this patent, one embodiment is described, referring to... Figure 1, 2 As shown in Figure 4, the front-view lens 2 and rear-view lens 3 are pre-installed in the front-view lens mount 5 and rear-view lens mount 7, respectively. Then, the front-view lens mount 5 is inserted into the main housing 1, and the first columnar window 5b is inserted into the round hole of the front-view lens mount limiting body 4. Then, the annular base plate 6a of the lens mount pressure plate 6 is fixed to the main housing 1 with screws to limit the front-view lens mount 5. At this time, the front-view lens mount 5 is limited to the contact slope 6c between the front-view lens mount limiting body 4 and the rotating limiting block 6b. Angle adjustment can be achieved in the meantime; then the rearview lens mount baffle 8 is installed on the rear of the main housing 1, and the rearview lens mount 7 is clamped between the lens mount pressure plate 6 and the rear lens mount limiting body 8b. The second columnar window 7b passes through the lens mount through hole 8c. With the sliding cooperation between the second bowl-shaped body 7a and the inner wall of the rear lens mount limiting body 8b, and with the cooperation between the second constricted arc edge 7e at the bottom of the rearview lens mount 7 and the contact slope 6c of the six rotating limiting blocks 6b, the angle adjustment of the rearview lens mount 7 can be achieved.

[0031] Furthermore, such as Figure 1 , 4 The wiring harnesses of the front-view camera 2 and the rear-view camera 3 pass through the first wiring notch 5c and the second wiring notch 7c, respectively, and connect to the control motherboard located in the middle of the main housing 1. The motherboard is further connected to the display screen 11, and after the rearview mirror 10 is assembled, the main housing 1 is fully enclosed. If necessary, a PC decorative panel 9 is further glued to the flat substrate 8a of the rearview camera mount baffle 8 to further improve the aesthetics. This structure is simple and reliable, allowing the angles of the front and rear cameras to be adjusted without affecting the function of the rearview mirror. The product is lightweight, low-cost, and easy to manufacture and assemble.

[0032] This invention also discloses a dashcam, as described above. Figure 1 , 4 As shown, its application is as described above with a dual-lens bracket. This structure is simple and reliable, allowing for adjustable angles of the front and rear cameras without affecting the functionality of the rearview mirror. The product is lightweight, low-cost, and easy to manufacture and assemble.

[0033] The above description, in conjunction with specific embodiments, provides a further detailed explanation of the present invention. It should not be construed that the specific implementation of the present invention is limited to these descriptions. For those skilled in the art, various simple deductions or substitutions can be made without departing from the concept of the present invention, and all such modifications and substitutions should be considered within the scope of protection of the present invention.

Claims

1. A dual-lens bracket, comprising a main housing (1), characterized in that, A cavity penetrating the front and rear of the main housing (1) is provided on the main housing (1). A front-viewing lens (2) and a rear-viewing lens (3) facing the front and rear directions respectively are provided in the cavity. The front-viewing lens (2) is located in an adjustable front-viewing lens mount (5) with the lens facing forward. The rear-viewing lens (3) is located in an adjustable rear-viewing lens mount (7) with the lens facing backward. The front-viewing lens mount (5) and the rear-viewing lens mount (7) are respectively provided through the front end face and the rear end face of the main housing (1).

2. The dual-lens bracket as described in claim 1, characterized in that, The front-view lens mount (5) includes a first bowl-shaped body (5a) with a hemispherical outer surface and a first cylindrical window (5b) connected to the central axis of the first bowl-shaped body (5a). The front-view lens (2) is fixed inside the front-view lens mount (5) and the shooting angle is directed outward from the first cylindrical window (5b). The first cylindrical window (5b) extends beyond the front end face of the main housing (1). The rear-view lens mount (7) includes a second bowl-shaped body (7a) with a hemispherical outer surface and a second cylindrical window (7b) connected to the central axis of the second bowl-shaped body (7a). The rear-view lens (3) is fixed inside the rear-view lens mount (7) and the shooting angle is directed outward from the second cylindrical window (7b). The second cylindrical window (7b) extends beyond the rear end face of the main housing (1).

3. The dual-lens bracket as described in claim 2, characterized in that, The cavity portion has a front lens mount limiting body (4) with a circular hole on the main housing (1) at the front and a rear lens mount baffle (8) with a lens mount through hole (8c) at the rear. The front lens mount (5) is movably fitted inside the front lens mount limiting body (4). The first bowl-shaped body (5a) is limited by the circular hole, and the first columnar window (5b) extends outside the circular hole. By moving the first columnar window (5b), the first bowl-shaped body (5a) can rotate inside the circular hole to switch the orientation of the first columnar window (5b). The rear lens mount (7) is movably fitted inside the rear lens mount baffle (8). The second bowl-shaped body (7a) is limited by the lens mount through hole (8c), and the second columnar window (7b) extends outside the lens mount through hole (8c). By moving the second columnar window (7b), the second bowl-shaped body (7a) can rotate inside the lens mount through hole (8c) to switch the orientation of the second columnar window (7b).

4. The dual-lens bracket as described in claim 2, characterized in that, The first bowl-shaped body (5a) is provided with a first wiring gap (5c) for the passage of the front-view lens (2) at its edge; the second bowl-shaped body (7a) is provided with a second wiring gap (7c) for the passage of the rear-view lens (3) at its edge.

5. The dual-lens bracket as described in claim 3, characterized in that, The cavity is located on one side of the main housing (1). A rearview mirror (10) is provided on the rear surface of the main housing (1). The rearview mirror (10) covers all areas of the rear surface of the main housing (1) except for the cavity area. A rearview lens mount baffle (8) is also provided, which serves as a baffle for the cavity area on the rear surface of the main housing (1).

6. The dual-lens bracket as described in any one of claims 1 to 5, characterized in that, A lens mount pressure plate (6) is also provided between the front-view lens mount (5) and the rear-view lens mount (7) to divide the two lens mount movement spaces; the lens mount pressure plate (6) is fixedly connected to the main housing (1).

7. The dual-lens bracket as described in claim 6, characterized in that, The lens mount plate (6) includes: an annular base plate (6a) with a circular through hole in the middle, and at least three rotating limiting blocks (6b) extending vertically to both sides distributed around the edge of the through hole of the annular base plate (6a); the tail ends of the front lens mount (5) and the rear lens mount (7) are embedded and contacted in the inner wall of the rotating limiting block (6b), and the motion reference planes of the front lens mount (5) and the rear lens mount (7) are both located outside the base plane of the annular base plate (6a).

8. The dual-lens bracket as described in claim 7, characterized in that, With the reference surface of the annular substrate (6a) as the base, the facing surfaces of each rotating limiting block (6b) are contact slopes (6c) that are thick at the bottom and thin at the outside; the tail ends of the front lens mount (5) and the rear lens mount (7) that contact the rotating limiting block (6b) are arc surfaces with gradually decreasing size.

9. The dual-lens bracket as described in claim 7, characterized in that, The inner side outer walls of the front lens mount (5) and the rear lens mount (7) are respectively provided with a first limiting protrusion (5d) and a second limiting protrusion (7d). The first limiting protrusion (5d) and the second limiting protrusion (7d) are both limited between two rotation limiting blocks (6b) to prevent the axial rotation of the front lens mount (5) and the rear lens mount (7).

10. A dashcam, characterized in that, Its application is a dual-lens bracket as described in any one of claims 1-9.

Images