CN112240474B

CN112240474B - Angle adjusting mechanism and monitor comprising same

Info

Publication number: CN112240474B
Application number: CN201910645071.XA
Authority: CN
Inventors: 钟凌波; 邓照平
Original assignee: Hangzhou Haikang Automobile Technology Co ltd
Current assignee: Hangzhou Haikang Automobile Technology Co ltd
Priority date: 2019-07-17
Filing date: 2019-07-17
Publication date: 2022-05-27
Anticipated expiration: 2039-07-17
Also published as: CN112240474A

Abstract

The application discloses angle adjustment mechanism and monitor including it. The angle adjustment mechanism includes: the base and the installation pole of movably installing on the base, the base includes diapire and apron, the internal surface of apron is first arc concave surface, and be provided with the through-hole at the top of apron, it is protruding towards the bellied cambered surface of first arc concave surface to be constructed on the diapire, form the fit-up gap between first arc concave surface and cambered surface arch, the installation pole is including the installation end of assembly in the fit-up gap and the body of rod that extends through the through-hole, the installation end has the top surface with first arc concave surface sliding fit and with the bellied sliding fit of cambered surface and with the spaced bottom surface of diapire, make the installation end slidingtype assemble in the fit-up gap. According to the angle adjusting mechanism of the application, the effect of the spherical surface matching adjusting mechanism can be achieved, but the size of the angle adjusting mechanism is smaller than that of the spherical surface matching adjusting mechanism.

Description

Angle adjusting mechanism and monitor comprising same

Technical Field

The application relates to the field of automotive electronics, in particular to an angle adjusting mechanism. The application also relates to a monitor comprising such an angle adjustment mechanism.

Background

Currently, a monitor, such as a video camera, is installed in a vehicle to monitor the conditions inside the vehicle. In order to monitor as much as possible all conditions in the vehicle, it is necessary to mount the monitor or camera on an adjustment mechanism whose angle can be adjusted over a wide range.

In the prior art, a common adjusting mechanism comprises an adjusting mechanism of a ball body matched with a spherical surface. The mechanism can realize stepless angle adjustment and has a wide application range. However, the adjusting mechanism with the ball body matched with the spherical surface needs the complete ball body and the spherical surface, which results in larger volume of the adjusting mechanism and is not beneficial to use.

Disclosure of Invention

In order to solve the above problems, the present invention provides an angle adjusting mechanism. The inner surface of the cover plate of the base of the angle adjusting mechanism is a first arc-shaped concave surface, the bottom wall is provided with an arc-shaped bulge, and the mounting end of the mounting rod is in sliding fit with the first arc-shaped concave surface and the arc-shaped bulge simultaneously, so that the effect of the spherical surface matching adjusting mechanism is achieved, but the size of the mounting rod is smaller than that of the spherical surface matching adjusting mechanism. The invention also relates to a monitor comprising such an angle adjustment mechanism.

The angle adjusting mechanism according to the first aspect of the present invention includes a base and a mounting lever movably mounted on the base, the base includes a bottom wall and a cover plate, an inner surface of the cover plate is a first arc-shaped concave surface, and a through hole is provided at a top of the cover plate, an arc-shaped protrusion protruding toward the first arc-shaped concave surface is configured on the bottom wall, a fitting gap is formed between the first arc-shaped concave surface and the arc-shaped protrusion, the mounting lever includes a mounting end fitted in the fitting gap and a lever body extending through the through hole, the mounting end has a top surface slidably fitted with the first arc-shaped concave surface and a bottom surface slidably fitted with the arc-shaped protrusion and spaced from the bottom wall, so that the mounting end slidably fits in the fitting gap.

In one embodiment, the inner surface of the cover plate is a concave surface of a first spherical cap, the top surface of the mounting end is a convex surface of a second spherical cap, and the radius of the first spherical cap is equal to that of the second spherical cap.

In one embodiment, the area of the first spherical cap concave surface is greater than or equal to the area of the second spherical cap convex surface.

In one embodiment, the first spherical cap concave surface and the second spherical cap convex surface are both hemispherical surfaces.

In one embodiment, a mating recess is configured on the bottom surface of the mounting end to slidingly mate with the cambered surface protrusion.

In one embodiment, the cambered surface protrusion and the matching recess are hemispheres with equal radii, and the cambered surface protrusion is concentric with the first spherical cap.

In one embodiment, an active space is further arranged between the assembly gap and the bottom wall, the active space is communicated with the assembly gap, the arc-shaped protrusion comprises a cylindrical part and a hemispherical part located at the top end of the cylindrical part, the cylindrical part is located in the active space, the hemispherical part protrudes into the first arc-shaped concave surface, and the matching recess on the bottom surface of the mounting end is in sliding fit with the hemispherical part.

In one embodiment, a routing channel is formed in the mounting rod, the routing channel radially penetrates through the top surface of the mounting end and axially extends to the top end of the rod body, and an extension channel communicated with the routing channel is formed on the base.

In one embodiment, the angle fixing screw is further included, a screw hole along the radius direction is configured on the cover plate, and the angle fixing screw is installed in the screw hole and can be abutted with the installation end.

The monitor according to the second aspect of the present invention comprises the angle adjusting mechanism according to the above and a monitoring module mounted on the top end of the mounting rod, wherein a routing channel is configured in the mounting rod, the routing channel radially penetrates through the top surface of the mounting end and axially extends to the top end of the rod body, an extension channel communicated with the routing channel is configured on the base, and the routing of the monitoring module externally penetrates through the extension channel and the routing channel to be connected with the monitoring module.

Compared with the prior art, the invention has the following beneficial effects: the internal surface of the apron of angle adjustment mechanism's base is first arc concave surface to it is protruding to construct the cambered surface at the diapire, and the installation end of installation pole is simultaneously with first arc concave surface and the protruding sliding fit of cambered surface. Thus, the adjustment angle of the rod body is limited only by the through hole, and there is no directional limitation, i.e., an angle adjustment function similar to that of a ball joint. In addition, the installation end and the cover plate are not the whole spherical surface, so that the space occupied by the base is reduced, and the use of the angle adjusting mechanism is greatly facilitated.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:

fig. 1 is a perspective view of one embodiment of an angle adjustment mechanism for a monitor according to the present invention.

Fig. 2 is a sectional view a-a of fig. 1.

Fig. 3 is a B-B sectional view of fig. 1.

Fig. 4 schematically shows the structure of the mounting rod.

Fig. 5 schematically shows the structure of the base.

FIG. 6 is a schematic diagram of a mounting end mated with a base, according to one embodiment.

Fig. 7 is a perspective view of one embodiment of a monitor according to the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, the technical solutions of the present application will be described in detail and completely with reference to the following specific embodiments of the present application and the accompanying drawings. It should be apparent that the described embodiments are only some of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

Fig. 1 schematically shows an angle adjustment mechanism 10 according to one embodiment of the present invention in a perspective view. As shown in fig. 1, the angle adjusting mechanism 10 includes a base 4 and a mounting rod 1 movably mounted on the base 4. The top end of the mounting bar 1 can be used to mount a monitoring module for monitoring. In one embodiment, the monitoring module can be a camera, a display, a mobile phone, or the like.

Fig. 2 is a sectional view a-a of fig. 1. Fig. 5 schematically shows the structure of the base. As shown in fig. 2 and 5, the base 4 includes a bottom wall 40 and a cover plate 41. The inner surface 410 of the cover plate 41 is a first arc-shaped concave surface, and a through hole 411 is provided at the top of the cover plate 41. The cover plate 41 and the bottom wall 40 cooperate to form an arcuate domed cavity as a whole. A cambered protrusion 412 is configured on the bottom wall 40. The cambered surface protrusion 412 protrudes toward the first cambered concave surface 410. In this case, the size of the arcuate projection 412 is smaller than the size of the first arcuate concave surface 410, and thus a fitting gap 413 is formed between the first arcuate concave surface 410 and the arcuate projection 412.

The mounting bar 1 includes a mounting end 21 fitted in the fitting gap 413 and a bar body 22 extending through the through hole 411, as shown in fig. 4. Mounting end 21 has a top surface 210 that slidingly engages first arcuate recessed surface 410 and a bottom surface 211 that slidingly engages arcuate raised surface 412. In addition, the bottom surface 211 is also spaced from the bottom wall 40 of the base 4 so that the mounting end 21 can slide in conformity with the fitting gap 413.

It will be appreciated that the size of the mounting end 21 is always greater than the size of the through hole 411 to ensure that the mounting bar 1 does not become detached from the base 4.

When the stick body 22 is pulled to adjust the angle, the top surface 210 slides along the first arc-shaped concave surface 410, and the bottom surface 211 simultaneously slides along the arc-shaped convex surface 412, so that the angle of the stick body 22 is only limited by the size of the through hole 411, and is not limited by the direction. For example, the lever body 22 can be made to rotate about its axis, to swing back and forth, or to swing side to side, i.e., an angle adjustment function similar to a ball joint. Thus, although the mounting end 21 and the cover plate 41 are not entirely spherical (e.g., hemispherical) in view of the whole, the angle adjustment function of the ball joint is achieved by the sliding fit of the top surface 210 with the first arc-shaped concave surface 410 and the sliding fit of the bottom surface 211 with the arc-shaped convex surface 412. Furthermore, since the cover plate 41 is not a full sphere, its footprint (equivalent to the footprint of the base 4) is much smaller than the footprint of the ball joint, which greatly facilitates the use of the angle adjustment mechanism 10.

In one embodiment, to facilitate adjusting the angle of the toggle lever body 22, the through hole 411 is configured as a circular hole.

In order to make the top surface 210 and the inner surface 410 slide relatively more smoothly, the inner surface 410 of the cover plate 41 is a concave surface of the first spherical cap, the top surface 210 of the mounting end 21 is a convex surface of the second spherical cap, and the radii of the first spherical cap and the second spherical cap are equal. It should be understood that the radius of the spherical cap refers to the radius of the sphere on which the spherical cap is located, the height of the spherical cap being smaller than the radius of the sphere. In this case, the top surface 210 and the inner surface 410 are only a portion of a sphere, even both are not hemispheres, and the volume of the mounting end 21 and the cover plate 41 is correspondingly smaller than the volume of the corresponding sphere connection, which reduces the occupied space of the base 4 as a whole, thereby facilitating the installation of the angle adjusting mechanism 10 in a narrow space. In addition, since the radii of the first spherical cap and the second spherical cap are equal, a tight sliding fit is formed between the top surface 210 and the inner surface 410, which can prevent contaminants from accidentally entering the sliding fit surface, thereby ensuring smooth relative sliding between the top surface 210 and the inner surface 410.

In one embodiment, as shown in FIG. 6, the area of the first spherical cap concave surface 410 is greater than the area of the second spherical cap convex surface 210. In this case, since the overall size of the mounting end 21 is smaller than the size of the fitting gap 413, even if the distance between the bottom surface 211 of the mounting end 21 and the bottom wall 40 of the base 4 is reduced, the adjustment of the angle of the mounting lever 1 is not hindered, which contributes to further reducing the space occupied by the base 4 (e.g., reducing the height of the base 4) to facilitate the use of the angle adjustment mechanism 10. In another embodiment, the area of the first spherical cap concave surface 410 is equal to the area of the second spherical cap convex surface 210. Preferably, the first spherical cap concave surface 410 and the second spherical cap convex surface 210 are both hemispherical surfaces. In this case, it is possible to prevent the contaminant from being accidentally introduced into the sliding engagement surface, thereby ensuring smooth relative sliding of the top surface 210 and the inner surface 410.

In order to facilitate the stable sliding engagement of the bottom surface 211 of the mounting end 21 with the cambered surface protrusion 412, a fitting recess 213 for sliding engagement with the cambered surface protrusion 412 is configured on the bottom surface 211 of the mounting end 21, as shown in fig. 4. Thus, when the bottom surface 211 of the mounting end 21 slides relative to the arc-shaped protrusions 412, the arc-shaped protrusions 412 are stably located in the engagement recesses 213, so that the mounting end 21 does not disengage from the bottom wall 40, thereby improving the stability of the angle adjustment mechanism 10 in use. Preferably, the arcuate protrusion 412 and the mating recess 213 are hemispherically-shaped with equal radii, and the arcuate protrusion 412 is concentric with the first spherical cap concavity 410, such that the mounting end 21 is spherically symmetrical in shape, thereby facilitating manufacture of the mounting end 21.

As shown in fig. 5, a movable space 42 is further provided between the fitting gap 413 and the bottom wall 40, and the movable space 42 communicates with the fitting gap 413. The activity space 42 and the fitting gap 413 form a complete space as a whole. The arced relief 412 includes a cylindrical portion 414 and a hemispherical portion 415 at the top of the cylindrical portion 414. The cylindrical portion 414 is located in the activity space 42, and the hemispherical portion 415 protrudes into the fitting gap 413. The mating recess 213 on the bottom surface 211 of the mounting end 21 is a sliding fit with the hemispherical portion 415. In this way, the cylindrical portion 414 ensures that the bottom surface 211 of the mounting end 21 is spaced from the bottom wall 40 of the base 4. In this case, the bottom wall 40 may include an extension portion extending toward and engaging with the cover plate 41, or the cover plate 41 may include an extension portion extending toward and engaging with the bottom wall 40, so that the movable space 42 becomes a closed cavity in the assembled state of the mounting end 21 to prevent contaminants from entering into the movable space 42.

As shown in fig. 3, a routing channel 23 is formed in the mounting rod 1. The routing channel 23 extends radially through the top surface 210 of the mounting end 21 and axially to the top end of the rod body 22. An epitaxial channel 45 is formed on the base 4 and communicates with the routing channel 23. The trace channel 23 and the extension channel 45 are hidden from view, so that the trace 62 of the monitoring module (shown by a dotted line) can be hidden to avoid damaging the trace 62.

As shown in fig. 5, the angle adjustment mechanism 10 further includes an angle fixing screw 50. A screw hole 46 extending in the radial direction is formed in the cover plate 41, and an angle fixing screw 50 is fitted into the screw hole 46 and can abut against the fitting end 21. In this way, after the mounting lever 1 is adjusted to an appropriate angle, the angle fixing screw 50 can be tightened to abut against the mounting end 21, thereby fixing the angle of the mounting lever 1. When it is necessary to readjust the angle of the mounting bar 1, the angle-fixing screws 50 can be loosened to be separated from the mounting ends 21, whereby the angle of the fixed mounting bar 1 can be freely adjusted again. Preferably, the angle fixing screws 50 are two and arranged in a facing relationship in the radial direction of the cover plate 41, which contributes to more stably fixing the mounting bar 1 at an appropriate angle.

Fig. 7 is a perspective view of one embodiment of a monitor according to the present invention. The monitor 60 comprises an angle adjustment mechanism 10 according to the above and a monitoring module 61 mounted on the top end of the mounting bar 1. A wiring channel 23 is formed in the mounting rod 1. The routing channel 23 passes radially through the top surface 210 of the mounting end 21 and extends axially to the top end of the rod body 22, and an extension channel 45 is formed on the base 4 and communicates with the routing channel 23. The trace 62 of the monitoring module 61 is externally connected to the monitoring module 61 through the epitaxial channel 45 and the trace channel 23.

The above description is only an example of the present application and is not intended to limit the present application. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.

Claims

1. An angle adjustment mechanism, comprising: a base and a mounting rod movably mounted on the base,

the base comprises a bottom wall and a cover plate, the inner surface of the cover plate is a first arc-shaped concave surface, a through hole is arranged at the top of the cover plate, an arc-shaped bulge protruding towards the first arc-shaped concave surface is constructed on the bottom wall, an assembly gap is formed between the first arc-shaped concave surface and the arc-shaped bulge,

the mounting rod comprises a mounting end which is arranged in the mounting gap and a rod body which extends through the through hole, the mounting end is provided with a top surface which is in sliding fit with the first arc-shaped concave surface and a bottom surface which is in sliding fit with the arc-shaped convex surface and is spaced from the bottom wall;

a wiring channel is formed in the mounting rod, the wiring channel radially penetrates through the top surface of the mounting end and axially extends to the top end of the rod body,

An epitaxial channel communicated with the routing channel is constructed on the base;

the angle adjusting mechanism further comprises an angle fixing screw, a screw hole along the radius direction is formed in the cover plate, and the angle fixing screw is installed in the screw hole and can be abutted to the installation end.

2. The angle adjustment mechanism of claim 1, wherein the inner surface of the cover plate is a concave first spherical cap surface, the top surface of the mounting end is a convex second spherical cap surface, and the first spherical cap and the second spherical cap have the same radius.

3. The angle adjustment mechanism of claim 2, wherein the area of the first spherical cap concave surface is greater than or equal to the area of the second spherical cap convex surface.

4. The angle adjustment mechanism of claim 2, wherein the first spherical cap concave surface and the second spherical cap convex surface are both hemispherical surfaces.

5. The angle adjustment mechanism according to any one of claims 2 to 4, wherein a fitting recess that is slidably fitted with the arc-shaped protrusion is configured on a bottom surface of the mounting end.

6. The angle adjustment mechanism of claim 5, wherein the arced relief and the mating recess are hemispherical surfaces of equal radius, the arced relief being concentric with the first spherical cap.

7. The angle adjustment mechanism of claim 6, further comprising a movable space between the assembly gap and the bottom wall, the movable space being in communication with the assembly gap, wherein the arced projection includes a cylindrical portion and a hemispherical portion at a top end of the cylindrical portion, the cylindrical portion being in the movable space, the hemispherical portion projecting into the first arced recess, and a mating recess on a bottom surface of the mounting end being in sliding fit with the hemispherical portion.

8. A monitor comprising the angle adjustment mechanism of claim 1 and a monitoring module mounted on the top end of the mounting rod,

a wiring channel is formed in the mounting rod, the wiring channel radially penetrates through the top surface of the mounting end and axially extends to the top end of the rod body, an extension channel communicated with the wiring channel is formed on the base,

the wires of the monitoring module penetrate through the epitaxial channel and the wire channel from the outside and are connected with the monitoring module.