CN210716696U

CN210716696U - Pan-tilt camera and camera pan-tilt thereof

Info

Publication number: CN210716696U
Application number: CN201921019863.8U
Authority: CN
Inventors: 孙白冰; 盛楠
Original assignee: Zhejiang Dahua Technology Co Ltd
Current assignee: Zhejiang Dahua Technology Co Ltd
Priority date: 2019-07-02
Filing date: 2019-07-02
Publication date: 2020-06-09
Anticipated expiration: 2029-07-02

Abstract

The utility model relates to a cloud platform and cloud platform camera make a video recording is provided with the buffering subassembly between base and the seat of honour, and can drive the ball and roll along the glide plane when the seat of honour rotates, so buffering subassembly can not lead to the fact the restriction to the rotation of base. Under the action of the pre-tightening force of the elastic part, the ball can always keep abutting against the sliding surface and keep the upper seat and the base in a tightened state. Therefore, even if there is a fitting gap between the base and the upper seat, the degree of freedom therebetween is reduced by the tightening. In addition, the elastic piece can absorb the kinetic energy of vibration through elastic deformation, so that the shaking and swinging amplitude of the upper seat in the rotating process is further reduced. Therefore, the tripod head camera and the camera tripod head thereof can obviously improve the stability.

Description

Pan-tilt camera and camera pan-tilt thereof

Technical Field

The utility model relates to a video monitoring technical field, in particular to cloud platform camera and cloud platform of making a video recording thereof.

Background

Compared with a common camera, the pan-tilt camera has the advantages of convenient motion adjustment and suitability for multi-angle video acquisition, so that the pan-tilt camera is widely applied to the field of video monitoring. The pan/tilt head of a pan/tilt head camera generally has an upper portion and a lower portion, and the upper portion and the lower portion are connected through a transmission structure to realize mutual rotation.

However, due to the bearing play, the installation gap, and the structural dimension error, the upper and lower portions may shake and shake due to rotation during the starting and rotating processes, resulting in poor stability of the pan/tilt camera.

SUMMERY OF THE UTILITY MODEL

Based on this, it is necessary to provide a pan/tilt camera and a camera pan/tilt head thereof capable of improving stability, aiming at the problem of poor stability of the existing pan/tilt camera.

A camera head for mounting a camera, the camera head comprising:

a base provided with a sliding surface;

the upper seat is rotatably arranged on the base, the sliding surface faces the upper seat, and the upper seat is provided with an installation position for installing the camera; and

the buffering assembly comprises a ball and an elastic piece, the ball is in rolling contact with the sliding surface, and the elastic piece is clamped between the ball and the upper seat and pre-compressed to provide pre-tightening force for the ball to abut against the sliding surface;

the rotating shaft of the upper seat is perpendicular to the sliding surface, and the upper seat can drive the balls to roll along the sliding surface when rotating.

In one embodiment, the base and the upper seat are both hemispherical shells, the upper seat and the base are matched to form a closed spherical shell, and the sliding surface is located in the base and extends along the circumferential direction of the base opening.

In one embodiment, the upper seat is connected with the base through a bearing, a driving gear is arranged in the middle of the upper seat, and the bearing and the driving gear are coaxially arranged.

In one embodiment, the installation ball seat is rotatably accommodated in the upper seat, a rotating shaft of the installation ball seat is perpendicular to the rotating shaft of the upper seat, the installation position is located in the installation ball seat, and a strip-shaped window corresponding to the installation position is formed in the side wall of the upper seat.

In one embodiment, the number of the buffer assemblies is three, and the connecting lines of the three buffer assemblies form an equilateral triangle.

In one embodiment, the device further comprises a retainer, a limiting sleeve is arranged on the retainer, the retainer is fixed on the upper seat, and the elastic piece is contained in the limiting sleeve.

In one embodiment, an end of the limiting sleeve, which is far away from the ball, is provided with an adjusting knob which is abutted with the elastic piece, and the adjusting knob can be screwed in or out to adjust the pre-compression amount of the elastic piece.

In one embodiment, the upper seat is further provided with a mounting plate, a limiting through hole is formed in the mounting plate, one side of the mounting plate, which faces away from the base, is fixed to the retainer, and the ball is accommodated in the limiting through hole in a rolling manner.

In one embodiment, the aperture of the limiting through hole decreases in the direction pointing to the sliding surface, and the minimum aperture of the limiting through hole is smaller than the outer diameter of the ball.

A pan-tilt camera comprising: the camera and the camera holder in any one of the above preferred embodiments, the camera is mounted on the mounting position.

Above-mentioned cloud platform and cloud platform camera of making a video recording is provided with buffering subassembly between base and the seat of honour, and can drive the ball and roll along the glide plane when the seat of honour rotates, so buffering subassembly can not cause the restriction to the rotation of base. Under the action of the pre-tightening force of the elastic part, the ball can always keep abutting against the sliding surface and keep the upper seat and the base in a tightened state. Therefore, even if there is a fitting gap between the base and the upper seat, the degree of freedom therebetween is reduced by the tightening. In addition, the elastic piece can absorb the kinetic energy of vibration through elastic deformation, so that the shaking and swinging amplitude of the upper seat in the rotating process is further reduced. Therefore, the tripod head camera and the camera tripod head thereof can obviously improve the stability.

Drawings

Fig. 1 is an exploded view of a pan/tilt camera according to a preferred embodiment of the present invention;

fig. 2 is a schematic view of a part of the structure of the camera pan-tilt in the pan-tilt camera shown in fig. 1;

FIG. 3 is an assembled cross-sectional view of the pan/tilt camera of FIG. 1;

fig. 4 is a partially enlarged view of the pan/tilt camera shown in fig. 3.

Detailed Description

In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1, the present invention provides a pan/tilt camera 10 and a camera pan/tilt 100. The pan/tilt/zoom camera 10 includes a camera pan/tilt 100 and a camera head 200. The camera 200 is installed in the camera head 100, and is adjusted by the camera head 100 to realize multi-angle video acquisition.

Referring to fig. 2 and 3, the camera platform 100 according to the preferred embodiment of the present invention includes a base 110, an upper seat 120 and a buffering assembly 130.

The base 110 is a base of the camera head 100. In addition, in order to facilitate the installation of the base 110, an installation seat 111 may be further provided outside the base 110. The base 110 may be a solid structure or a hollow structure. Specifically, in the present embodiment, the base 110 is a hemispherical shell. Therefore, other components of the camera platform 100, such as the transmission mechanism, the electronic components, the driving components, etc., can be accommodated in the base 110, so that the camera platform 100 has a compact structure.

The upper base 120 is rotatably mounted to the base 110. The upper base 120 has an installation position (not shown), and the camera 200 is installed on the installation position. The upper base 120 rotates relative to the base 110, and the camera 200 is driven to rotate. The upper base 120 and the base 110 can be rotatably connected through a rotating shaft, a hinge, a bearing, and other mechanisms. In the present embodiment, the upper seat 120 is connected to the base 110 through a bearing 140, a driving gear 121 is disposed in the middle of the upper seat 120, and the bearing 140 is disposed coaxially with the driving gear 121.

Specifically, the torque of the driving member may be rotated to the upper seat 120 via the driving gear 121, thereby driving the upper seat 120 to rotate supported by the bearing 140. The bearing 140 rotates more smoothly and, since the driving gear 121 is coaxial with the bearing 140, the bearing 140 is more uniformly stressed. Therefore, the driving gear 121 can be prevented from being deviated, and the upper seat 120 can be more stably rotated. In addition, a driving motor 150 is installed in the base 110 and is in transmission connection with the driving gear 121.

The upper base 120 is matched with the base 110 in structure, and may be a solid structure or a hollow shell. Specifically, in the present embodiment, the upper seat 120 is also a hemispherical shell, and the upper seat 120 and the base 110 cooperate to form a closed spherical shell.

On the one hand, the upper seat 120 can also be used for accommodating other elements of the camera head 100, so as to make the structure compact. On the other hand, the closed spherical shell structure may provide protection for the internal components. Moreover, when the base 110 and the upper base 120 rotate relative to each other, the base and the upper base can be kept engaged without any gap. Therefore, the reliability of the camera head 100 can also be improved.

In addition, as shown in fig. 1, the upper housing 120 may be formed by splicing two detachable parts to facilitate the molding of the upper housing 120 and the assembly of the internal components.

Further, in the present embodiment, the camera platform 100 further includes a mounting ball seat 160. The mounting ball seat 160 is rotatably received in the upper seat 120, a rotation axis of the mounting ball seat 160 is perpendicular to a rotation axis of the upper seat 120, the mounting position is located in the mounting ball seat 160, and a strip-shaped window 123 corresponding to the mounting position is opened on a side wall of the upper seat 120.

Specifically, the mounting ball seat 160 may be mounted in the upper seat 120 by a rotating shaft and a hinge. The mounting socket 160 may also be assembled from two removable housings to facilitate installation of the camera head 200. The camera 200 is integrally accommodated in the upper base 120, which is beneficial to improving the appearance of the pan/tilt camera 10. When the mounting ball seat 160 rotates in the upper seat 120, the camera 200 can always be opposite to the strip-shaped window 123, so that the camera 120 is prevented from being blocked.

Furthermore, in order to achieve the waterproof and dustproof effects, the strip-shaped window 123 may further be covered with a transparent cover 1232. The mounting ball seat 160 is matched with the upper seat 120, and can drive the camera 200 to rotate from two directions, so that a larger video acquisition range is obtained.

Referring to fig. 4, the base 110 is provided with a sliding surface 113, and the sliding surface 113 faces the upper seat 120. Wherein, the rotation axis of the upper seat 120 is perpendicular to the sliding surface 113. The surface of the sliding surface 113 is generally planar, annular, and extends about the axis of rotation of the upper housing 120. Specifically, in the present embodiment, the base 110 is a hemispherical shell, and the sliding surface 113 is located in the base 110 and extends along the circumferential direction of the opening of the base 110.

The damping assembly 130 includes a ball 131 and an elastic member 133. The elastic member 133 may be a spring, a disc spring, foam, a silica gel column, or other member capable of elastically deforming; the balls 131 are generally steel balls with smooth surfaces. In the present embodiment, the elastic member 133 is a compression spring.

The buffer members 130 are generally disposed between the base 110 and the upper base 120. Specifically, the balls 131 are in rolling contact with the sliding surface 113. The elastic member 133 is sandwiched between the ball 131 and the upper seat 120 and is pre-compressed. The compressed elastic element 133 can generate a pre-tightening force, which urges the ball 131 against the sliding surface 113.

The position of the elastic member 133 is generally fixed with respect to the upper seat 120, and is always kept in contact with the ball 131. When the upper base 120 rotates relative to the base 110, the balls 131 are driven to roll along the sliding surface 113. At this time, although the balls 131 roll with respect to the end surface of the elastic member 133, the relative position of the two does not change, and the balls 131 are similar to "slip" on the end surface of the elastic member 133.

Under the action of the elastic member 133, the base 110 and the upper seat 120 tend to move away from each other. Further, since the balls 131 can be always kept in contact with the base 110 (sliding surface 113) during the rotation, the upper seat 120 and the base 110 can be kept in a tightened state. Therefore, even if there is a fitting gap between the base 110 and the upper seat 120, the degree of freedom therebetween is reduced due to the tightening therebetween. In addition, the elastic member 133 can absorb the kinetic energy of the vibration through elastic deformation, thereby further reducing the shaking and swinging amplitude during the rotation of the upper seat 120.

In order to provide a stable support between the base 110 and the upper seat 120 to further improve the stability of the rotation of the upper seat 120. Specifically, in the present embodiment, there are three buffer assemblies 130, and the connecting lines of the three buffer assemblies 130 form an equilateral triangle.

In this embodiment, the camera platform 100 further includes a holder 170, and the holder 170 is provided with a limiting sleeve 171. The holder 170 is fixed to the upper base 120, and the elastic member 133 is accommodated in the stopper sleeve 171.

Specifically, the retainer 170 is generally ring-shaped and is fixed to an edge of the upper seat 120. The holder 170 may be fixedly connected to the upper base 120 by clamping, welding, bonding, or screwing. The number of the limiting sleeves 171 corresponds to the number of the cushion assemblies 130, and the limiting sleeves can limit the elastic member 133 to prevent the elastic member 133 from being bent or laterally deflected, so that the elastic member 133 can always keep the relative position with the upper seat 120 unchanged in the rotating process of the upper seat 120.

Further, in the present embodiment, an end of the limiting sleeve 171 away from the ball 131 is provided with an adjusting knob 173 abutting against the elastic member 133. The adjustment knob 173 may be screwed in or out to adjust the amount of precompression of the resilient member 133.

Specifically, the limiting sleeve 171 and the adjusting knob 173 may be respectively provided with an internal thread and an external thread, so that the adjusting knob 173 can be screwed in or out. By adjusting the pre-compression amount of the elastic member 133, the pre-tightening force can be adjusted, so that the buffering effect of the buffering assembly 130 can be adjusted to be optimal according to actual conditions. Furthermore, by adjusting the pre-compression amount of the elastic member 133, the adjustment of the parallelism between the base 110 and the upper seat 120 is also achieved.

In the embodiment, the upper base 120 is further provided with a mounting plate 125, a limit through hole (not shown) is formed in the mounting plate 125, a side of the mounting plate 125 opposite to the base 110 is fixed to the holder 170, and the ball 131 is rollably received in the limit through hole.

Specifically, the mounting plate 125 is generally a unitary structure of the upper housing 120. The mounting plate 125 is shaped to conform to the cage 170 to facilitate mounting of the cage 170 to the upper housing 120. When the upper base 120 is rotatably mounted on the base 110, the mounting plate 125 is close to but not in contact with the sliding surface 113. That is, the mounting plate 125 is disposed opposite the sliding surface 113 with a small gap therebetween.

The balls 131 are accommodated in the limiting through holes, and partially protrude from the limiting through holes to abut against the sliding surface 113. Therefore, the limiting through hole can limit the ball 131, so that the ball 131 is prevented from being separated from the elastic member 133 when the upper seat 120 rotates, and the reliability of the camera head 100 is ensured.

It is understood that the mounting plate 125 is not required. For example, the ball 131 may be stopped by forming a sliding groove in the sliding surface 113.

Further, in the present embodiment, the aperture of the stopper through-hole decreases in the direction toward the sliding surface 113, and the minimum aperture of the stopper through-hole is smaller than the outer diameter of the ball 131.

Specifically, the limiting through hole is funnel-shaped and is provided with a large end and a small end. The large end is located at one end of the limiting through hole close to the holder 170, and the small end is located at one end of the limiting through hole close to the sliding surface 113. The minimum aperture of the limiting through hole, namely the diameter of the small end opening is smaller than the outer diameter of the ball 131. Therefore, the ball 131 cannot entirely pass through the small end of the stopper through-hole.

That is, the balls 131 are confined in the space between the holder 170 and the mounting plate 125, and even if the base 110 is separated from the upper seat 120, the balls 131 are not removed from the limiting through-holes. Therefore, the reliability of the camera head 100 can be further improved.

When assembling the camera platform 100, the buffering component 130 can be installed between the mounting plate 125 and the holder 170. At this time, since the balls 131 are restricted in the stopper through holes, the mounting plate 125 can be directly pushed into the sliding surface 113 without separately positioning and pre-fixing the balls 131. Therefore, the assembly of the camera head 100 is also facilitated.

In the pan/tilt/zoom camera 10 and the camera pan/tilt head 100, the buffering component 130 is disposed between the base 110 and the upper seat 120, and the rotation of the upper seat 120 drives the balls 131 to roll along the sliding surface 113, so that the buffering component 130 does not limit the rotation of the base 110. Under the action of the biasing force of the elastic member 133, the balls 131 can always keep abutting against the sliding surface 113 and keep the upper seat 120 and the base 110 in a tightened state. Therefore, even if there is a fitting gap between the base 110 and the upper seat 120, the degree of freedom therebetween is reduced due to the tightening therebetween. In addition, the elastic member 133 can absorb the kinetic energy of the vibration through elastic deformation, thereby further reducing the shaking and swinging amplitude during the rotation of the upper seat 120. Therefore, the above-mentioned pan/tilt head camera 10 and the camera pan/tilt head 100 thereof can significantly improve the stability.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present 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. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. The utility model provides a cloud platform of making a video recording for install the camera, its characterized in that, the cloud platform of making a video recording includes:

a base provided with a sliding surface;

2. A camera head according to claim 1, wherein said base and said upper mount are both hemispherical shells, and said upper mount and said base cooperate to form a closed spherical shell, said sliding surface being located within said base and extending circumferentially of said base opening.

3. A camera head according to claim 2, wherein said upper base is connected to said base by a bearing, a driving gear is provided in the middle of said upper base, and said bearing is provided coaxially with said driving gear.

4. The camera holder according to claim 2, further comprising an installation ball seat rotatably received in the upper seat, wherein a rotation axis of the installation ball seat is perpendicular to a rotation axis of the upper seat, the installation site is located in the installation ball seat, and a strip-shaped window corresponding to the installation site is opened on a side wall of the upper seat.

5. A camera head according to claim 1, wherein said number of said buffer members is three, and the lines connecting said three buffer members form an equilateral triangle.

6. A camera head according to any one of claims 1 to 5, further comprising a holder, wherein a limiting sleeve is provided on said holder, said holder is fixed to said upper base, and said elastic member is received in said limiting sleeve.

7. A camera head according to claim 6, wherein an end of said limiting sleeve remote from said ball is provided with an adjustment knob in abutment with said elastic member, said adjustment knob being able to be screwed in or out to adjust the pre-compression of said elastic member.

8. A camera head according to claim 6, wherein the upper base is further provided with a mounting plate, the mounting plate is provided with a limiting through hole, one side of the mounting plate facing away from the base is fixed to the holder, and the ball is rollably received in the limiting through hole.

9. A camera head according to claim 8, characterized in that the aperture of said limiting through hole decreases progressively in the direction towards said sliding surface, and the minimum aperture of said limiting through hole is smaller than the outer diameter of said ball.

10. A pan-tilt camera, comprising: a camera head and a camera head according to any one of claims 1 to 9, said camera head being mounted on said mounting location.