A high-speed ball cover

Abstract

The present invention relates to a spherical mask for a high-speed ball. Said spherical mask comprises an upper mask, a lower mask and a sealing mechanism. Said upper mask comprises a mask lid, a double-layer mask housing, wherein said mask lid is mounted on the double-layer mask housing, said double-layer mask housing comprises an outer mask and an inner mask, in which the inner mask is set inside the outer mask. Said lower mask comprises a transparent mask ring and a transparent cover, in which the transparent cover is fixed at the transparent mask ring. Said sealing mechanism comprises a sealing loop, a sealing ring, a connection ring and some bolts, wherein said connection ring is fixed at side wall of the inner cover and is equipped with threaded holes therein to match the bolts, said sealing ring is set at installation groove of the transparent mask ring, the sealing loop is mounted at the sealing ring, and the bolts passes through the via holes on the transparent mask ring and are connected to the threaded hole screw thread set in the connection ring. The beneficial merits of the present invention lie in that the sealing mechanism inside the spherical mask for a high-speed ball in accordance with the present invention has a simple structure, is installed conveniently and exhibits excellent sealing effect.

Description

technical field [0001] The invention relates to a dome cover, in particular to a front-end device of a security monitoring system—a dome cover for peripheral equipment of a high-speed ball. Background technique [0002] The high-speed ball is a front-end equipment for a security monitoring system that integrates optics, electronics, machinery, and information processing. It is composed of a camera, power transmission, and motion control device. Because it has multiple functions such as video camera, position control, orientation and lens preset, moving target detection, recognition and tracking, flame and smoke detection and alarm, it is more and more used in buildings, banks, airports, stations, customs Security monitoring occasions in , transportation, electric power, factories and mines, and places where people cannot be on duty. [0003] Since the working temperature of the high-speed dome camera is -5°C to 45°C, when the camera works outside t...

AI Technical Summary

Problems solved by technology

[0003] Since the working temperature of the high-speed dome camera is -5°C to 45°C, when the camera works outside this temperature range, the image quality will be affected or even damaged. Therefore, the high-speed dome installed outdoors generally needs to be covered with a protective cover, and outdoor protection The sealing performance of the cover should be high to prevent rainwater from entering, so as to adapt to various climatic conditions, such as wind, rain, snow, and frost; The diameter of the sealing ring is larger than the gap, and the sealing ring is deformed through interference fit to achieve the purpose of sealing, as shown in Figure 1, but this sealing method has the following disadvantages: 1) Grease must be added when installing the sealing ring, and the upper cover It can be closed smoothly with the lower cover. Due to the lack of lubricating grease during later maintenance, it is difficult to close the upper cover and the lower cover. Maintenance personnel often remove the O-ring 3 and directly close the upper cover and the lower cover, resulting in sequelae of poor sealing; 2) There are relatively high requirements for the diameter and roundness of the upper cover and the lower cover. If the gap between the upper cover and the lower cover is too small, it cannot be installed, and if it is too large, the seal is not good, as shown in Figure 2 and 3, and it is compatible with The upper and lower covers where the sealing ring contacts must be very round and the inner wall must be very smooth, otherwise it will be difficult to form close contact with the sealing ring and affect the sealing effect

But at present, the high-speed dome cover is generally made of aluminum plate, which is pressed and stretched, and then mechanically cut. When the aluminum plate is stretched and deformed, the inner wall will produce stretch marks (commonly known as wrinkles). If you want to get a smooth inner wall, you must go through secondary processing and polishing. , increasing the processing cost

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