CN211908917U

CN211908917U - Running fit structure and camera device

Info

Publication number: CN211908917U
Application number: CN202020208974.XU
Authority: CN
Inventors: 李振兴
Original assignee: Guangzhou Shiyuan Electronics Thecnology Co Ltd; Guangzhou Shizhen Information Technology Co Ltd
Current assignee: Guangzhou Shiyuan Electronics Thecnology Co Ltd; Guangzhou Shizhen Information Technology Co Ltd
Priority date: 2020-02-25
Filing date: 2020-02-25
Publication date: 2020-11-10
Anticipated expiration: 2030-02-25

Abstract

The utility model provides a normal running fit structure and camera device. The rotating matching structure comprises a lower support and a rotating base, the lower support comprises a lower support body and a rotating driving device, and a plurality of first bosses or a second annular groove are fixed on the matching surface of the lower support body matched with the rotating base; a first annular groove is formed in the matching surface of the rotating base, which is matched with the lower support body, or a plurality of second bosses are fixed on the rotating base; when the rotating base rotates, a plurality of first bosses are positioned in the first annular groove, or a plurality of second bosses are positioned in the second annular groove; the camera device comprises the rotating matching structure, and the utility model reduces the rotating friction by adopting the rotating point contact mode, thereby preventing the camera device from being blocked during rotation; and the clearance of the rotating fit is reduced, so that the appearance clearance of the product is synchronously reduced, and the appearance quality requirement of the product can be met.

Description

Running fit structure and camera device

Technical Field

The utility model belongs to the technical field of intelligence rotating equipment, especially, relate to a normal running fit structure and camera device.

Background

For some intelligent rotary products, the upper and lower parts thereof can rotate relatively, for example, a camera device for security protection, as shown in fig. 1 to 5, fig. 1 is a schematic sectional view of a part of a camera device in the prior art; FIG. 2 is an enlarged view of portion A of FIG. 1; FIG. 3 is a perspective view of a lower frame of a camera device of the prior art without a rotation driving device; FIG. 4 is a front view of a prior art camera device; fig. 5 is a perspective view of a camera device according to the prior art. The camera device comprises a camera part and a lower support 1, wherein the camera part and the lower support are arranged up and down, and the camera part can rotate relative to the lower support 1, so that the camera can shoot and record videos at multiple angles. General camera portion includes upper bracket 3, shell body 4 and camera 5, and shell body 4 and camera 5 all are fixed in upper bracket 3, have seted up second through-hole 441 on the shell body 4, and camera 5 sets up in second through-hole 441, and lower carriage 1 is including motor 13, and upper bracket 3 is through the cooperation with the motor pivot, and when the motor during operation, upper bracket 3 drives whole camera portion and rotates. However, as shown in fig. 2, in the conventional rotatable camera device, generally, an annular groove 21 'is formed at the bottom end of the camera portion, the lower bracket 1 has a corresponding annular boss 12', and after the camera device is assembled, a rotation gap must be left between the bottom surface of the annular groove 21 'and the annular boss 12', so as to ensure that the camera portion can be driven to rotate when the motor rotates. However, such a rotation fitting structure has the following problems:

(1) the camera shooting part is in surface contact with the lower support when in rotating matching, so that the contact surface is large, the friction force is large in the rotating process, and the problems of concentricity of the motor, deformation of a base plastic part for fixing the motor and the like can cause the motor to be easily blocked when in rotating;

(2) in order to prevent the locking during rotation, the clearance h1 (the clearance between the bottom surface of the annular groove and the annular boss) of the rotation fit needs to be increased, and is generally designed to be 0.8-1mm, but the clearance h2 of the appearance of the product is large, and the appearance quality of the product is affected.

Disclosure of Invention

Based on this, the embodiment of the utility model provides a rotation fit structure, can reduce the contact surface when the rotation is joined in marriage, adopts the mode of point contact, has reduced the rotational friction, prevents to block when rotating; and the clearance of the rotating fit is reduced, so that the appearance clearance of the product is synchronously reduced, and the quality requirement of the small clearance of the product appearance can be met.

A rotary matching structure comprises a lower bracket and a rotary base rotatably connected with the lower bracket,

the lower support comprises a lower support body and a rotary driving device fixed on the lower support body, the rotary driving device is used for driving the rotary base to rotate relative to the lower support, and a matching surface of the lower support body, which is matched with the rotary base, is a first annular surface; the lower support also comprises a plurality of first bosses fixed on the first annular surface, or the first annular surface is provided with a second annular groove;

the matching surface of the rotating base matched with the lower bracket body is a second annular surface; a first annular groove is formed in the position, corresponding to the first bosses, of the second annular surface, or a plurality of second bosses are fixed in the position, corresponding to the second annular groove, of the second annular surface;

the first bosses are arranged at intervals along the circumferential direction of the first annular surface, or the second bosses are arranged at intervals along the circumferential direction of the second annular surface; when the rotating base rotates, the plurality of first bosses are positioned in the first annular groove, or the plurality of second bosses are positioned in the second annular groove.

The embodiment of the utility model provides a through the first boss of a plurality of and the setting that corresponds of first annular groove, or a plurality of second boss and the setting that corresponds of second annular groove, realized changing the face contact when original rotation into the point contact mode through simple structure, reduced running friction widely, the card is dead when not only can preventing to rotate, makes normal running fit's clearance reduce moreover, makes product appearance clearance reduce in step, has improved product appearance quality.

As a preferred embodiment, a plurality of first bosses are fixed on the first annular surface, a first annular groove is formed in the second annular surface, and the plurality of first bosses are arranged at intervals along the circumferential direction of the first annular surface; when the rotating base rotates, the plurality of first bosses are positioned in the first annular groove, the first bosses are contacted with the bottom surface of the first annular groove, and contact points/contact surfaces of the first bosses and the first annular groove are positioned on the same plane. Because the rotating base can be unbalanced when rotating, if the first boss is contacted with the bottom surface of the first annular groove, a certain balance effect can be achieved, and because the contact point/contact surface is positioned on the same plane, the clearance h1 of the rotating fit can be minimized, and the appearance clearance h2 can be minimized; in the conventional technology, the annular boss matched with the annular groove is not easy to operate and control in the process of adjusting the flatness during production, so that the flatness of the upper surface of the annular boss is difficult to ensure; in the embodiment, the arrangement of the plurality of first bosses enables the upper surfaces of the first bosses to be located on the same plane, and during processing, the integral flatness can be adjusted only by adjusting the individual bosses, so that the operation is convenient.

As a preferred embodiment, each first boss abuts against the bottom surface of the first annular groove, and the distance between two matching surfaces of the rotating base and the lower bracket body which are matched with each other is not more than 0.3 mm. Namely h1 is zero and h2 is 0.3mm at most, reaching the lower limit of the rotating fit clearance and the appearance clearance; of course, h1 or h2 can be adjusted to be larger as required.

As a preferred embodiment, a surface of the first boss facing the first annular groove includes an arc surface. The arrangement can ensure that the friction force between the rotating base and the first boss is smaller when the rotating base rotates.

In one embodiment, the rotation driving device is a motor, and the rotating base is provided with a first through hole matched with an output shaft of the motor, and the first through hole is located at an axis of the rotating base.

An embodiment of the utility model provides a still provide a camera device, include the normal running fit structure.

Furthermore, the camera device also comprises an upper bracket, an outer shell and a camera,

the upper bracket comprises an upper bracket bottom and an upper bracket main body which are fixed with each other, the camera is fixed on the upper bracket main body, and the upper bracket bottom is driven by the rotary driving device;

the outer shell comprises an outer shell bottom and an outer shell body which are fixed with each other, and an accommodating cavity is defined by the outer shell, the upper support body is positioned in the accommodating cavity, the outer shell bottom is fixed at the upper support bottom and comprises a shell part, and the shell part is cylindrical and is fixedly arranged on the radial outer side of the upper support bottom;

the rotating base is formed by the bottom of the upper support and the bottom of the outer shell together, a first annular notch facing the outer side face of the bottom of the upper support is formed in the matching surface of the bottom of the upper support and the lower support body, a second annular notch facing the inner side face of the shell of the bottom of the outer shell is formed in the matching surface of the bottom of the outer shell and the matching surface of the lower support body, and the first annular notch is communicated with the second annular notch and spliced to form the first annular groove.

The utility model discloses the camera device drives the rotation of camera through rotating the rotation of base for the lower carriage, in this embodiment, rotates the base and has opening first annular groove down, and the lower carriage has the first boss of a plurality of, and rotates the base and form for the bottom combination of upper bracket and shell body respectively, and such split type design is convenient for the shaping and the installation of upper bracket and shell body.

Further, the first annular groove comprises a first bottom surface located at the bottom of the upper support and a second bottom surface located at the bottom of the outer shell, and the first boss is at least partially located below the first bottom surface, so that the first boss is at least partially in contact with the first bottom surface when the rotating base rotates, most preferably, the first boss is located under the first bottom surface, when the rotating base rotates, the first boss is only in contact with the first bottom surface and cannot be in contact with the second bottom surface, the lower end of the outer shell is effectively prevented from being abraded, and only the upper support needs to be repaired or replaced when the rotating base is repaired or replaced.

Preferably, the first bottom surface has a level not higher than that of the second bottom surface. Can guarantee like this to rotate base first boss and only can contact first bottom surface when rotatory, can not contact the second bottom surface, effectively protect the shell body.

Furthermore, the shell body is formed by splicing a front shell and a rear shell, a second through hole is formed in the front shell, and the camera is located in the second through hole. This is a specific embodiment which facilitates the shaping and mounting of the outer shell.

Drawings

FIG. 1 is a partially schematic cross-sectional view of a prior art camera device;

FIG. 2 is an enlarged view of portion A of FIG. 1;

FIG. 3 is a perspective view of a lower frame of a camera device of the prior art without a rotation driving device;

fig. 4 is a front view of a camera device of the prior art and embodiment 2 of the present invention;

fig. 5 is a schematic perspective view of a camera device according to the prior art and embodiment 2 of the present invention;

fig. 6 is a partial cross-sectional view of a running fit structure according to embodiment 1 or embodiment 2 of the present invention;

FIG. 7 is an enlarged view of portion B of FIG. 6;

fig. 8 is a schematic side view of a lower bracket of a running fit structure according to embodiment 1 or a camera device according to embodiment 2 of the present invention;

fig. 9 is a schematic perspective view of the lower bracket according to embodiment 1 or embodiment 2 of the present invention when the rotation driving device is not installed;

wherein: 1-lower carriage, 11-lower carriage body, 111-first annular face, 12-first boss, 13-rotary drive device, 2-rotary base, 21-first annular groove, 22-first through hole, 23-second annular face, 3-upper carriage, 31-upper carriage bottom, 311-first annular notch, 3112-first bottom face, 32-upper carriage main body, 4-outer carriage, 41-outer carriage bottom, 411-housing part, 4111-second annular notch, 41112-second bottom face, 42-outer carriage main body, 43-accommodating cavity, 44-front housing, 441-second through hole, 45-rear housing, 5-camera, h 1-clearance of rotary fit, h 2-appearance clearance; 12 '-annular boss, 21' -annular recess.

Detailed Description

Example 1

As shown in fig. 6 to 9, fig. 6 is a schematic partial cross-section view of a rotation fit structure according to embodiment 1 of the present invention; FIG. 7 is an enlarged view of portion B of FIG. 6; fig. 8 is a schematic side view of a lower bracket of a running fit structure according to embodiment 1 of the present invention; fig. 9 is a schematic perspective view of a lower bracket according to embodiment 1 of the present invention when a rotation driving device is not installed. The rotating matching structure of the embodiment comprises a lower support 1 and a rotating base 2 which is rotatably connected to the lower support 1, wherein the lower support 1 comprises a lower support body 11, a plurality of first bosses 12 and a rotating driving device 13 which is fixed on the lower support body 11, the rotating driving device 13 is used for driving the rotating base 2 to rotate relative to the lower support 1, the matching surface of the lower support body 11, which is matched with the rotating base 2, is a first annular surface 111, and the plurality of first bosses 12 are fixed on the first annular surface 111; the matching surface of the rotating base 2 matched with the lower bracket body 11 is a second annular surface 23, and the positions of the second annular surface 23 corresponding to the first bosses 12 are provided with first annular grooves 21; a plurality of first bosses 12 are arranged at intervals along the circumferential direction of the first annular surface 111, preferably at equal intervals; when the rotating base 2 rotates, the first bosses 12 are located in the first annular groove 21.

This embodiment is through the corresponding setting of a plurality of first boss and first annular groove for simple structure has realized changing original face contact when rotatory into the point contact mode, has reduced running friction widely, and the card is dead when not only can preventing to rotate, makes normal running fit's clearance reduce moreover, makes product appearance clearance reduce in step, has improved product appearance quality. Of course, it is understood that in other embodiments, the matching of the first bosses and the first annular grooves may be reversely arranged on the lower bracket body and the rotating base, respectively, and the same effect may also be achieved. For example, the second annular groove may be matched with a plurality of second bosses, the first annular surface 111 is provided with the second annular groove, the plurality of second bosses are fixed on the rotating base 2 at positions corresponding to the second annular groove, the plurality of second bosses are arranged at intervals along the circumferential direction of the second annular surface 23, and when the rotating base 2 rotates, the plurality of second bosses are located in the second annular groove (not shown in the embodiment).

As a preferred embodiment, when the rotating base 2 rotates, the first boss 12 contacts with the bottom surface of the first annular groove 21; the contact point/contact surface at which the first boss 12 contacts the bottom surface of the first annular groove 21 is located on the same plane. Since the rotating base 2 may be unbalanced when rotating, if the first boss 12 contacts the bottom surface of the first annular groove 21, a certain balance effect can be achieved, and since the contact point/contact surface is located on the same plane, the clearance h1 of the rotating fit can be minimized, and the appearance clearance h2 can be minimized; in the conventional technology, the annular boss matched with the annular groove is not easy to operate and control in the process of adjusting the flatness during production, so that the flatness of the upper surface of the annular boss is difficult to ensure; in the embodiment, the arrangement of the plurality of first bosses 12 makes the upper surfaces of the first bosses located on the same plane simpler, and during processing, the integral flatness can be adjusted only by adjusting individual bosses, so that the operation is convenient. As a preferred embodiment, the surface of the first boss 12 facing the first annular groove 21 includes an arc surface. This arrangement makes it possible to reduce the friction between the rotating base 2 and the first boss when the rotating base is rotated.

As a preferred embodiment, each first boss 12 abuts against the bottom surface of the first annular groove 21 (i.e. the rotational fit clearance h1 is zero), and the distance between two mating surfaces where the rotating base 2 and the lower bracket body 11 mate with each other is not more than 0.3mm (i.e. the appearance clearance h2 is 0.3mm at most), which reaches the lower limit of the rotational fit clearance and the appearance clearance; of course, h1 or h2 can be adjusted to be larger as required.

In one embodiment, the rotation driving device 13 is a motor, and the rotating base 2 is provided with a first through hole 22 matching with an output shaft of the motor, and the first through hole 22 is located at the axis of the rotating base 2. The rotation of the rotating base 2 is driven by the operation of the motor. In other embodiments, the rotational drive may also be other conventional drives.

Example 2

As shown in fig. 4 to 9, fig. 4 is a front view of a camera device according to embodiment 2 of the present invention; fig. 5 is a schematic perspective view of a camera device according to embodiment 2 of the present invention; fig. 6 is a schematic partial cross-section of a running fit structure according to embodiment 2 of the present invention; FIG. 7 is an enlarged view of portion B of FIG. 6; fig. 8 is a schematic side view of a lower bracket of a camera device according to embodiment 2 of the present invention; fig. 9 is a schematic perspective view of a lower bracket according to embodiment 2 of the present invention when a rotation driving device is not installed. This embodiment provides a camera device, include the utility model discloses a normal running fit structure. The camera device specifically comprises an upper bracket 3, an outer shell 4 and a camera 5, wherein the upper bracket 3 comprises an upper bracket bottom 31 and an upper bracket main body 32 which are fixed with each other, the camera 5 is fixed on the upper bracket main body 32, and the upper bracket bottom 31 is driven by a rotary driving device 13; the outer shell 4 comprises an outer shell bottom 41 and an outer shell body 42 which are fixed with each other, and enclose an accommodating cavity 43, the upper bracket body 32 is located in the accommodating cavity 43, the outer shell bottom 41 is fixed on the upper bracket bottom 31 and comprises a shell part 411, and the shell part 411 is cylindrical and is fixedly arranged on the radial outer side of the upper bracket bottom 31; the upper bracket bottom 31 and the outer housing bottom 41 jointly form the rotating base 2, a first annular notch 311 facing the outer side surface of the upper bracket bottom 31 is formed in a matching surface of the upper bracket bottom 31 and a matching surface of the lower bracket body 11, a second annular notch 4111 facing the inner side surface of the housing part 411 of the outer housing bottom 41 is formed in a matching surface of the housing part 411 of the outer housing bottom 41 and the lower bracket body 11, and the first annular notch 311 is communicated with the second annular notch 4111 and spliced to form a first annular groove 21.

The camera device of this embodiment drives the rotation of camera through rotating base 2 for the rotation of lower carriage 1, and in this embodiment, rotating base 2 has opening first annular groove 21 down, and lower carriage 1 has the first boss 12 of a plurality of, and rotates base 2 and form for the bottom combination of upper bracket 3 and shell body 4 respectively, rotates such split type design of base 2, the shaping and the installation of the upper bracket 3 of being convenient for and shell body 4.

As an embodiment, the first annular groove 21 may include a first bottom surface 3112 located at the bottom 31 of the upper bracket and a second bottom surface 41112 located at the bottom 411 of the outer housing, and the first protrusion 12 is at least partially located below the first bottom surface 3112, so as to ensure that the first protrusion 12 is at least partially in contact with the first bottom surface 3112 when the rotating base 2 rotates, and most preferably, the first protrusion 12 is located right below the first bottom surface 3112, and when the rotating base 2 rotates, the first protrusion 12 only contacts the first bottom surface 3112 and does not contact the second bottom surface 41112, which effectively ensures that the lower end of the outer housing 4 is not worn out, and when repairing or replacing, only the upper bracket 3 needs to be repaired or replaced.

In a preferred embodiment, the level of first floor 3112 is not higher than the level of second floor 41112. Therefore, the first boss 12 can only contact the first bottom surface 3112 and not the second bottom surface 41112 when the rotating base 2 rotates, and the outer shell 4 is effectively protected. Further preferably, the outer housing 4 may be formed by splicing a front housing 44 and a rear housing 45, the front housing 44 is provided with a second through hole 441, and the camera 5 is located in the second through hole 441, which facilitates the forming and installation of the outer housing 4.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention.

Claims

1. A running fit structure, its characterized in that: comprises a lower bracket and a rotating base which is rotatably connected with the lower bracket,

2. The running fit structure of claim 1, wherein: a plurality of first bosses are fixed on the first annular surface, first annular grooves are formed in the second annular surface, and the first bosses are arranged at intervals along the circumferential direction of the first annular surface; when the rotating base rotates, the plurality of first bosses are positioned in the first annular groove, the first bosses are contacted with the bottom surface of the first annular groove, and contact points/contact surfaces of the first bosses and the first annular groove are positioned on the same plane.

3. The running fit structure of claim 2, wherein: every first boss with the bottom surface butt of first annular groove, the distance between the rotating base with two fitting surfaces that the lower carriage body mutually supported is not more than 0.3 mm.

4. The running fit structure of claim 1, wherein: the surface of the first boss facing the first annular groove includes an arcuate surface.

5. The running fit structure of claim 1, wherein: the rotary driving device is a motor, a first through hole matched with an output shaft of the motor is formed in the rotary base, and the first through hole is located at the axis of the rotary base.

6. A camera device, characterized in that it comprises a rotating matching structure according to any one of claims 1 to 5.

7. The camera device according to claim 6, wherein: also comprises an upper bracket, an outer shell and a camera,

8. The camera device according to claim 7, wherein: the first annular groove comprises a first bottom surface located at the bottom of the upper support and a second bottom surface located at the bottom of the outer shell, and the first boss is at least partially located below the first bottom surface.

9. The camera device according to claim 8, wherein: the level of the first bottom surface is not higher than the level of the second bottom surface.

10. The camera device according to claim 7, wherein: the shell body is formed by splicing a front shell and a rear shell, a second through hole is formed in the front shell, and the camera is located in the second through hole.