CN2319976Y

CN2319976Y - Driving mechanism of semi-spherical monitor

Info

Publication number: CN2319976Y
Application number: CN 97249330
Authority: CN
Inventors: 廖镇源
Original assignee: SHENGGU ELECTRONIC CO Ltd
Current assignee: SHENGGU ELECTRONIC CO Ltd
Priority date: 1997-11-21
Filing date: 1997-11-21
Publication date: 1999-05-19
Anticipated expiration: 2007-11-21

Abstract

The utility model relates to a driving mechanism of a semi-spherical monitor. A light direct current motor in shape of a small shaft drives a worm, and the worm drive is fixedly arranged at a worm gear of a shaft of a camera lens frame for driving the camera lens frame to move up and down. Another light direct current motor in shape of a small shaft drives another worm, the worm drive is fixed to a worm gear of a hollow shaft of a fixing seat, and the worm is installed on a rotating disk on which the camera lens frame is fixedly arranged; when the motor drives the worm, because the worm gear is an immovable piece, the worm is put to rotate over the worm gear, namely the rotating disk is driven to do horizontal rotation of 360 DEG. The utility model has the advantages of light and simple structure and small size and can be arranged in limited space so that the monitoring range of a semi-spherical monitor is increased.

Description

The driving mechanism of hemisphere watch-dog

The utility model relates to a kind of driving mechanism of hemisphere watch-dog, and its structure is gently little, simplify, and can be arranged in the space extremely limited in the hemisphere watch-dog, and the function of use of this hemisphere watch-dog is increased considerably.

Half shape ball watch-dog volume is little, is directly to be fixed on the ceiling installing, and can not destroy the aesthetic property of original upholster.So in many senior places of relatively paying attention to sighting, as senior market, supermarket, bank, hotel, exchange and other places, all to select this hemisphere watch-dog.But because this hemisphere watch-dog volume is little, the inner space is limited, can't dispose motor and transmission mechanism more really, monitors so it can only make fixed point, can cause many supervision dead angle, makes to monitor that efficient reduces.

The purpose of this utility model provides a kind of driving mechanism of hemisphere watch-dog, and the camera lens of this hemisphere watch-dog can be rotated up and down, and the rotating disk that sets up lens bracket can do horizontally rotating of 360 degree, so that the total space is monitored.

The utility model is achieved in that and includes a holder that can be fixed on the ceiling, this holder is outer can to set firmly an outer shroud cover, be provided with a rotating disk in the holder, be installed with a pedestal and an outer cover on the rotating disk, a device has the lens bracket of camera lens to be hinged on this pedestal with axle, it is characterized in that: these holder central authorities are hinged with a quill shaft and center of turntable, level is installed with a worm gear on this quill shaft, set firmly a stand in the lower surface of this rotating disk, this stand is put on the shelf and is equipped with an axle shape direct current machine and one by the worm screw of this shape direct current machine by its rotation of gear drive, the worm gear engagement on this worm screw and the quill shaft; So when the worm screw of rotating disk lower surface was driven, rotating disk will be done to horizontally rotate; One end of the frame vertical shaft of lens bracket vertically is installed with a worm gear, and on this pedestal homonymy outer wall, be installed with another stand, this stand is put on the shelf and is equipped with a shape motor and one by the worm screw of this shape motor by its rotation of gear drive, this worm gear then with the worm gear engagement on the axle of setting up of lens bracket; So when the worm screw of pedestal lateral wall was driven, this lens bracket will rotate up and down.

The utility model mainly is worm screw of direct current machine transmission of a light little axle shape of utilization in its confined space, and worm gear that is installed in the lens bracket axle center of this worm-drive is done upper and lower motion to drive this lens bracket.In addition, the utility model is also with another light little another worm screw of axle shape direct current machine transmission, worm gear that is installed on the quill shaft of this worm-drive.This quill shaft is fixed on the holder, and its upper end is hinged with a rotating disk, and this rotating disk upper holder is established the pedestal of lens bracket.When this motor rotation, this worm screw can make this rotating disk do the rotation of 360 degree around worm gear rotates, thereby overcome the shortcoming that traditional hemisphere watch-dog can only fix a point to monitor, and expand to and to do the supervision effect to whole space, security personnel's effect of this hemisphere watch-dog is significantly increased.

Fig. 1 is the stereogram one that the utility model is opened outer cover and outer shroud cover.

Fig. 2 is the stereogram two that the utility model is opened outer cover and outer shroud cover.

Fig. 3 is a cutaway view of the present utility model.

Fig. 4 is an outside drawing of the present utility model.

Referring to each accompanying drawing, the utility model hemisphere watch-dog 10 includes a holder 11 that can be fixed on the ceiling, can set firmly an outer shroud cover 12 outside this holder 11, be provided with a rotating disk 13 in the holder 11, be installed with a pedestal 14 and an outer cover 15 on the rotating disk 13, a device has the lens bracket 17 of camera lens 18 to be hinged on this pedestal 14 with axle 19, its driving mechanism is characterised in that: these holder 11 central authorities are installed with a quill shaft 20, quill shaft 20 upper ends and rotating disk 13 centers are hinged, level is installed with a worm gear 21 on this quill shaft 20, set firmly a stand 22 in the lower surface of this rotating disk 13, this stand 22 put on the shelf be equipped with an axle shape direct current machine 23 and one by this shape direct current machine 23 by gear 25, the worm screw 24 that this worm screw 24 of 26 transmissions is rotated, worm gear 21 engagements on this worm screw 24 and the quill shaft 20; So when the worm screw 24 of rotating disk 13 lower surfaces was driven by axle shape direct current machine 23, rotating disk 13 will be done to horizontally rotate; One end of the frame vertical shaft 19 of lens bracket 17 vertically is installed with a worm gear 27, and on these pedestal 14 homonymy outer walls 28, be installed with a stand 29, this stand 29 is put on the shelf and is equipped with a shape motor 30 and a worm screw 31 that passes through

gear

32,33 its rotations of transmission by this

shape motor

30, and 31 worm gears 27 that set up on the axle 19 with lens bracket 17 of this worm gear mesh; So when the worm screw 31 of pedestal 14 lateral walls 28 is driven by axle shape direct current machines 30, this lens bracket 17 will do or go up or under rotation.

The employed axle of the utility model shape direct

current machine

23,30, its size and shape is close with this

worm screw

24,31, so more do not take up space when assembling.In addition, for the rotation of balance rotating disk 13, these two groups of axle shape direct

current machines

23,30,

worm screw

24,31 are all set up with relative position, with the both sides weight of balance rotating disk 13.

Outer cover 15 is the prior art parts, and it is a semi-spherical shape, which is provided with one and extends perpendicularly to the microscler form 16 of extreme higher position by the sphere summit, and 18 on the camera lens of this lens bracket 17 aligns this visual angle 16 and sight in the monitoring room.During axle shape direct current machine 30 runnings on being positioned at pedestal 14 lateral walls 28, but transmission worm screw 31 rotate, 31 transmission worm gears of this worm screw 27 rotate, make lens bracket 17 can a vertical face directly do on or rotation down, thereby do 90 supervision of spending.

When rotating axle shape direct current machine 23 runnings of 13 bottom surfaces, but transmission worm screw 24 is rotated, this worm screw 24 is located at worm gear 21 on the quill shaft 20 with regard to transmission, but because quill shaft 20 all is fixed member with worm gear 21, so just causes worm screw 24 to rotate around worm gear 21; Because worm screw 24 is mounted on the stand 22 that is fixed on the rotating disk 13, just cause rotating disk 13 horizontally rotating again.The rotation of this rotating disk 13 cooperates the rotation up and down of

lens bracket

17, and 18 pairs of whole monitoring spaces of camera lens are monitored, reaches the security monitoring to whole space.

Quill shaft 20 of the present utility model is to lock on holder 11, and its upper end is hinged with bearing and rotating disk 13, and the hollow space 35 of its shape mainly is that supply lines runs through, and installs with convenient.

Claims

1, a kind of driving mechanism of hemisphere watch-dog, include a holder that can be fixed on the ceiling, this holder is outer can to set firmly an outer shroud cover, be provided with a rotating disk in the holder, be installed with a pedestal and an outer cover on the rotating disk, a device has the lens bracket of camera lens to be hinged on this pedestal with axle, it is characterized in that: these holder central authorities are hinged with a quill shaft and center of turntable, level is installed with a worm gear on this quill shaft, set firmly a stand in the lower surface of this rotating disk, this stand is put on the shelf and is equipped with an axle shape direct current machine and one by the worm screw of this shape direct current machine by its rotation of gear drive, the worm gear engagement on this worm screw and the quill shaft; So when the worm screw of rotating disk lower surface was driven, rotating disk will be done to horizontally rotate; One end of the frame vertical shaft of lens bracket vertically is installed with a worm gear, and on this pedestal homonymy outer wall, be installed with another stand, this stand is put on the shelf and is equipped with a shape motor and one by the worm screw of this shape motor by its rotation of gear drive, this worm gear then with the worm gear engagement on the axle of setting up of lens bracket; So when the worm screw of pedestal lateral wall was driven, this lens bracket will rotate up and down.