Explosion-proof visual camera

Abstract

An internal element composed of a visual camera and a light source is arranged in an anti-explosion shell of the anti-explosion visual camera, and the visual camera is connected with an external power supply through an anti-explosion cable introducing device to achieve equipment power supply and external network connection. The light source is connected to a light source driving device in a safe area through an explosion-proof cable introducing device, and a picture shot by the visual camera through an observation window is transmitted to a monitoring terminal display through a network. The shell is an explosion-proof shell, signals do not need to be converted, network transmission is directly carried out, the performance is stable and reliable, and the problem that an existing visual product is not explosion-proof when used in an explosion-proof place is solved.

Description

Technical Field

[0001] The utility model relates to a camera, in particular to an explosion-proof visual camera, which is a visual analysis device used in dangerous places with flammable and explosive gases. Background Art

[0002] With the development of intelligent analysis technology, the traditional oil drilling industry is also introducing some intelligent analysis technologies, such as automated drilling, using robotic automation programs to solve the current situation where traditional well drilling must rely on manpower, using visual technology to solve problems such as drilling pipe bending and thread slippage during automated drilling, and using visual analysis technology and facial analysis technology to solve personnel safety issues.

[0003] Visual technology applied to the explosion-proof industry. Currently in the military field, explosion-proof visual camera systems are required in the manufacturing of weapons and shells to measure, detect defects, and identify parts.

[0004] In the oil refining process, the on-site environment needs to be identified and detected. Many equipment used in non-explosion-proof areas are also undergoing automation upgrades. Visual inspection is the eye of automation and has huge market potential.

[0005] At present, there are no mature visual products on the market that can be used in explosion-proof places. Summary of the invention

[0006] The technical problem to be solved by the utility model is to provide an explosion-proof visual camera which can be used in explosion-proof places.

[0007] In order to solve the above technical problems, the technical solution adopted by the utility model is: an explosion-proof visual camera, including a shell, which is an explosion-proof shell, and internal components consisting of a visual camera and a light source are arranged in the shell. The visual camera is connected to an external power supply through an explosion-proof cable introduction device to realize equipment power supply and connection with an external network, and the light source is connected to a light source driving device in a safe area through an explosion-proof cable introduction device. The picture captured by the visual camera through the observation window is transmitted to the monitoring terminal display via the network.

[0008] The explosion-proof cable introduction device is a packing bushing connected in the inner hole of a base, a cone body connected at the end of the packing bushing, a tightening ring is arranged on the cone surface of the cone body; and a nut is arranged at the end of the packing box body connected to the base.

[0009] The shell is an explosion-proof shell made of 6061 aluminum alloy, and the length and roughness of its explosion-proof surface and the bonding length of the transparent part should all comply with the requirements specified in GB / T3836.2.

[0010] The utility model adopts the explosion-proof visual camera designed by the above technical solution, takes the user's special application scenario as the entry point, focuses on designing miniaturized and serialized products, the shell is made of 6061 aluminum alloy, the surface treatment method is anodizing, small size, light weight, and beautiful silver-white anodized appearance, which meets the requirements of use in explosion-proof places; the signal does not need to be converted and is directly transmitted to the network, and the performance is stable and reliable; the square design can realize the all-round fixing requirements of the product without taking up too much space. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 A schematic diagram showing the structure of the explosion-proof visual camera of the utility model;

[0012] Figure 2 The utility model shows a schematic diagram of the structure of an explosion-proof cable entry device.

[0013] In the figure: 1-explosion-proof cable entry device, 2-sealing ring, 3-housing, 4-fixing bracket, 5-visual camera, 6-light source, 7-tempered glass, 8-screw, 9-front cover plate, 10-rear cover plate, 11-base, 12-stuffing bushing, 13-cone, 14-tightening ring, 15-stuffing box body, 16-nut. DETAILED DESCRIPTION

[0014] The utility model explosion-proof visual camera is specifically described below in conjunction with the accompanying drawings.

[0015] This utility model explosion-proof visual camera, see Figure 1, including a shell 3, the shell 3 is an explosion-proof shell, one end of the shell 3 is provided with a tempered glass 7, the outer surface of the tempered glass 7 is provided with a front cover plate 9 with holes, the front cover plate 9 is fixed to the shell 3 by screws 8, a sealing ring is provided between the contact surface of the front cover plate 9 and the shell 3, and the tempered glass 7 and the front cover plate 9 form an observation window of the present utility model. The other end of the shell 3 is provided with a rear cover plate 10, the rear cover plate 10 is fixed to the shell 3 by screws, a sealing ring 2 is provided between the contact surface of the rear cover plate 10 and the shell 3, and an explosion-proof cable entry device 1 is provided on the rear cover plate 10. The shell 3 is an explosion-proof shell made of 6061 aluminum alloy, and the appearance is anodized, which effectively guarantees the weight and appearance of the product. The length and roughness of its flameproof surface and the bonding length of the transparent part shall meet the requirements specified in GB / T3836.2. Internal components consisting of a visual camera 5 and a light source 6 are arranged in the housing 3. The visual camera 5 is fixed to a fixing bracket 4 by screws. The fixing bracket 4 is arranged on a mounting bracket. The mounting bracket is provided with a plurality of adjusting bolts. The position of the fixing bracket 4 is adjusted by adjusting the bolts to adjust the front and rear position of the visual camera 5. The visual camera 5 is connected to an external power supply through an explosion-proof cable introduction device 1 to realize device power supply and connection with an external network. The light source 6 is connected to a light source driving device in a safe area through the explosion-proof cable introduction device 1, and the camera capture image is transmitted to the monitoring terminal display through the network.

[0016] The utility model explosion-proof cable entry device 1, see Figure 2A stuffing bushing 12 is connected in the inner hole of the base 11, a cone 13 is connected at the end of the stuffing bushing 12, a tight ring 14 is provided on the conical surface of the cone 13, and a nut 16 is provided at the end of the stuffing box 15 connected to the base 11. The threading method of the explosion-proof cable entry device 1: according to the wiring requirements of the visual camera 5, strip off the outer sheath of the cable of an appropriate length to expose the metal armor; retain the armor of an appropriate length, cut off the excess part, and process the cable; pass the processed cable through the part nut 16 and the stuffing box 15 in turn, wherein the nut 16 is equipped with a sealing ring that is sleeved on the sheath of the cable; the metal armor part is turned out through the tight ring 14 to do the grounding treatment of the cable, and then the cable core wire is passed through the cone 13 and the stuffing bushing 12 in turn; mix the two matching fillers into the required filler, and then add the filler to the gap between the cable core wires and the core. Around the wire, make its size close to the inner diameter of the stuffing bushing 12, and add appropriate stuffing into the cavity of the cone 13; insert the cone of the cone 13 into the armor, and put the stuffing bushing 12 on the cone 13; screw the base 11 on the entrance hole of the visual camera 5, insert the cable passing through the stuffing bushing 12 to the nut 16 into the base 1, and then screw the stuffing box body 15 on the base 1, so that the tight ring 14 is pressed against the metal armor and the cone 13, and the stuffing bushing 12 and the cone 13 are locked; tighten the nut 16 on the stuffing box body 15, so that the sealing ring in the nut 16 is fastened to the sheath of the cable. After the stuffing box body 15 is installed, it should be ensured that the stuffing sleeve is full of stuffing, without bubbles, etc., so as not to affect its performance.

[0017] The power supply cable, signal cable and light source control line of the utility model enter the housing 3 through the explosion-proof cable introduction device 1 and are connected to the visual camera 5 and the light source 6. The visual camera 5 captures the image through the observation window and transmits it back to the back-end device through the signal cable. The explosion-proof visual camera of the utility model with explosion-proof certification can be installed in dangerous places with flammable and explosive gases, and is particularly suitable for being installed in the mechanical arm or body of mechanical equipment operating in dangerous places with flammable and explosive gases.

Claims

1. An explosion-proof visual camera, comprising a housing, characterized in that The shell is an explosion-proof shell, and internal components consisting of a visual camera and a light source are arranged in the shell. The visual camera is connected to an external power supply through an explosion-proof cable introduction device to realize device power supply and connection with an external network. The light source is connected to a light source driving device in a safe area through an explosion-proof cable introduction device. The image captured by the visual camera through the observation window is transmitted to the monitoring terminal display via the network.

2. The explosion-proof visual camera according to claim 1, characterized in that The explosion-proof cable introduction device is a packing bushing connected in the inner hole of a base, a cone body connected at the end of the packing bushing, a tightening ring is arranged on the cone surface of the cone body; and a nut is arranged at the end of the packing box body connected to the base.

3. The explosion-proof visual camera according to claim 1, characterized in that The shell is an explosion-proof shell made of 6061 aluminum alloy, and the length and roughness of its explosion-proof surface and the bonding length of the transparent part should all comply with the requirements specified in GB / T3836.2.

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