3D camera with explosion-proof structure

Abstract

The utility model discloses a 3D camera with an explosion-proof structure, which comprises a shell, the shell is a three-dimensional frame with an opening in the upper side surface, a camera and a laser are arranged in the shell, an annular groove is arranged at the upper end of the shell, a sealing strip is arranged at the bottom of the annular groove, an upper cover is arranged at the opening of the shell, and a sealing strip is arranged at the bottom of the upper cover. An annular baffle is fixedly arranged on the lower side face of the upper cover, and the annular baffle is inserted into the annular groove and extrudes the sealing strip. A sealing device is arranged at the threading hole of the shell; according to the utility model, the shell and the upper cover which are connected in a sealing manner are arranged, and the sealed threading hole can effectively prevent combustible materials from entering the equipment, so that the probability of external explosion caused by internal deflagration of the equipment is reduced.

Description

Technical Field

[0001] The utility model relates to the field of cameras, in particular to a 3D camera with an explosion-proof structure. Background Art

[0002] 3D cameras are increasingly used in automation applications and can meet the needs of different scenarios. Therefore, there are many types of 3D cameras. For example, a Chinese patent with patent publication number CN111193855B discloses a binocular 3D camera, which has a shell with a laser installed in the middle, and camera assemblies are installed on both sides through a first fixing member. The two camera assemblies are symmetrically arranged about the laser, and a lens assembly is installed in the shell in front of each camera assembly through a second fixing member.

[0003] However, 3D cameras working in areas such as gas stations, gas stations, coal mines, and high-dust workshops need to meet explosion-proof standards. This is because gas stations, gas stations, high-dust workshops, and other areas are extremely prone to combustion or even explosion when exposed to open flames. Therefore, 3D cameras working in the above-mentioned dangerous areas need to have special structures to meet explosion-proof standards and prevent combustible materials from entering the equipment, causing external explosions due to internal combustion. Utility Model Content

[0004] The utility model aims to provide a 3D camera with an explosion-proof structure, aiming to improve the problem of danger of combustibles entering the 3D camera when the 3D camera is working in an area where explosion may occur.

[0005] The utility model is implemented as follows: a 3D camera with an explosion-proof structure comprises a shell, the shell is configured as a three-dimensional frame with an opening on the upper side, a camera and a laser are arranged inside the shell, an annular groove is arranged at the upper end of the shell, a sealing strip is arranged at the bottom of the annular groove, an upper cover is arranged at the opening of the shell, an annular baffle is fixedly arranged on the lower side of the upper cover, the annular baffle is inserted into the annular groove and squeezes the sealing strip; a sealing device is arranged at the threading hole of the shell.

[0006] Preferably, the shell and the upper cover are both made of aluminum alloy, and the thickness of the aluminum alloy is at least 9 mm. The upper cover and the shell are connected by connecting bolts.

[0007] Preferably, a second visual window and two first visual windows are provided on the front side of the shell, and tempered glass is provided at each of the visual windows.

[0008] Preferably, the two first visible windows are respectively located on both sides of the second visible window, the first visible window is opposite to the camera, and the second visible window is opposite to the laser.

[0009] Preferably, the sealing device can be configured as a limiting sealing assembly, which includes a pressure plate, a sealing gasket and a fastening bolt. A connecting pipe is fixedly arranged on the side of the pressure plate, the fastening bolt passes through the connecting pipe, and the sealing gasket is fitted on the pressure plate.

[0010] Preferably, a threaded groove is provided on the side of the threading hole, the size of the pressure plate and the sealing gasket is larger than the diameter of the threading hole, and they are arranged opposite to the threading hole, the end thread of the fastening bolt is inserted into the threaded groove, and the sealing gasket is arranged to fit the shell.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] The utility model is provided with a shell and an upper cover which are connected in a sealed manner, and a sealed threading hole, which can effectively prevent combustibles from entering the device, thereby reducing the probability of external explosion caused by internal deflagration of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of the utility model;

[0014] Figure 2 It is a structural schematic diagram of the housing of the utility model;

[0015] Figure 3 It is a first structural schematic diagram of the upper cover of the utility model;

[0016] Figure 4 It is a structural schematic diagram of the threading hole of the utility model;

[0017] Figure 5 It is a structural schematic diagram of the limiting sealing assembly of the utility model;

[0018] Figure 6 It is a schematic diagram of the positions of the housing and the cooling component of the utility model;

[0019] Figure 7 It is a structural schematic diagram of the cooling component of the utility model;

[0020] Figure 8 It is a second structural schematic diagram of the upper cover of the utility model;

[0021] Fig. 9 It is a schematic diagram of the interior of the shell of the utility model.

[0022] In the figure: 1. Shell; 11. Annular groove; 12. Threading hole; 13. First visual window; 14. Second visual window; 15. Threaded groove; 2. Upper cover; 21. Annular baffle; 22. Storage tank; 23. Liquid inlet hole; 24. Liquid outlet hole; 25. Annular support plate; 26. Sealing plate; 3. Limiting seal assembly; 31. Pressure plate; 32. Sealing gasket; 33. Fastening bolt; 34. Connecting pipe; 5. Explosion-proof gland; 6. MCU board; 7. Line laser; 8. Industrial camera. DETAILED DESCRIPTION

[0023] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] The following is a further description with reference to the accompanying drawings and specific embodiments:

[0025] Example 1

[0026] like Figure 1 , Fig. 9 As shown, a 3D camera with an explosion-proof structure includes a shell 1, an upper cover 2, a camera and a laser. The shell 1 is set as a three-dimensional frame, the upper side of the three-dimensional frame is an opening, and the upper cover 2 is located at the opening. The shell 1 and the upper cover 2 are made of high-strength aluminum alloy, and the thickness of the aluminum alloy is at least 9mm. The optical system composed of an industrial camera 8 and a line laser 7 is located inside the shell 1. For details, refer to the attached Fig. 9 It can be seen that there is an industrial camera 8 on each side. The industrial camera 8 is first connected and fixed to the camera adapter plate. After fixation, the camera adapter plate is fixed to the shell 1 by multiple screws. The mounting surfaces between the industrial camera 8 and the camera adapter plate and between the camera adapter plate and the shell 1 must be coated with thermal grease so that the heat of the camera can be directed to the shell. The line laser 7 is set in the middle, and the line laser it emits is a line laser. The line laser 7 can be controlled to deflect at equal angles to the left and right through the operation of the motor. In this way, the line laser 7 scans the object to be measured, and the scanning data is captured by the left and right industrial cameras 8. After internal algorithm processing, the three-dimensional point cloud data of the scanned object can be generated on the PC side. An MCU board 6 is also provided on the inner side of the shell 1.

[0027] like Figure 2 , Figure 3As shown, in order to prevent combustibles from entering the shell body 1, an annular groove 11 is provided at the upper end of the shell body 1, a sealing strip is provided at the bottom of the annular groove 11, and an annular baffle 21 is fixedly provided on the lower side of the upper cover 2, and is fixedly connected to the shell body 1 under the action of connecting bolts. At this time, the annular baffle 21 is inserted into the annular groove 11 and squeezes the sealing strip. Through the deformation of the sealing strip, the shell body 1 and the upper cover 2 are sealed and connected, which preliminarily prevents combustible gas from entering the shell body 1.

[0028] like Figure 2 As shown, in order for the industrial camera and laser to work properly, a second visual window 14 and two first visual windows 13 are provided on the front side of the housing 1. The two first visual windows 13 are respectively located on both sides of the second visual window 14. The first visual window 13 is directly opposite to the camera, and the second visual window 14 is directly opposite to the laser. Thickened anti-reflection tempered glass is provided at the visual windows, and the tempered glass is connected to the housing 1 through black high-viscosity double-sided adhesive tape. A metal cover is added on the outside to fix the tempered glass. The metal cover is connected to the housing 1 through connecting bolts. Therefore, a sealing effect is achieved at the window, and combustibles are prevented from entering the housing 1 again. The camera and the laser are directly opposite to the department windows, which facilitates camera imaging and laser emission. Because thickened anti-reflection tempered glass is provided, the strength of the tempered glass can meet the requirements.

[0029] In order to prevent combustibles from entering the shell 1 through the wire hole 12 of the shell 1, a sealing device is provided at the wire hole 12, and the sealing device can be set as an explosion-proof gland 5, that is, the cable connecting the optical system and the external power supply is sealed by the explosion-proof gland 5 when passing through the wire hole 12, thereby once again preventing combustibles from entering the shell 1, and effectively reducing the probability of external explosion caused by internal deflagration of the equipment.

[0030] Example 2

[0031] like Figure 1 , Fig. 9 As shown, a 3D camera with an explosion-proof structure includes a shell 1, an upper cover 2, a camera and a laser. The shell 1 is set as a three-dimensional frame, the upper side of the three-dimensional frame is an opening, and the upper cover 2 is located at the opening. The shell 1 and the upper cover 2 are made of high-strength aluminum alloy, and the thickness of the aluminum alloy is at least 9mm. The optical system composed of an industrial camera 8 and a line laser 7 is located inside the shell 1. For details, refer to the attached Fig. 9It can be seen that there is an industrial camera 8 on each side. The industrial camera 8 is first connected and fixed to the camera adapter plate. After fixation, the camera adapter plate is fixed to the shell 1 by multiple screws. The mounting surfaces between the industrial camera 8 and the camera adapter plate and between the camera adapter plate and the shell 1 must be coated with thermal grease so that the heat of the camera can be directed to the shell. The line laser 7 is set in the middle, and the line laser it emits is a line laser. The line laser 7 can be controlled to deflect at equal angles to the left and right through the operation of the motor. In this way, the line laser 7 scans the object to be measured, and the scanning data is captured by the left and right industrial cameras 8. After being processed by the internal algorithm, the three-dimensional point cloud data of the scanned object can be generated on the PC.

[0032] like Figure 2 , Figure 3 As shown, in order to prevent combustibles from entering the shell body 1, an annular groove 11 is provided at the upper end of the shell body 1, a sealing strip is provided at the bottom of the annular groove 11, and an annular baffle 21 is fixedly provided on the lower side of the upper cover 2, and is fixedly connected to the shell body 1 under the action of connecting bolts. At this time, the annular baffle 21 is inserted into the annular groove 11 and squeezes the sealing strip. Through the deformation of the sealing strip, the shell body 1 and the upper cover 2 are sealed and connected, which preliminarily prevents combustible gas from entering the shell body 1.

[0033] like Figure 2 As shown, in order for the industrial camera and laser to work properly, a second visual window 14 and two first visual windows 13 are provided on the front side of the housing 1. The two first visual windows 13 are respectively located on both sides of the second visual window 14. The first visual window 13 is directly opposite to the camera, and the second visual window 14 is directly opposite to the laser. Thickened anti-reflection tempered glass is provided at the visual windows, and the tempered glass is connected to the housing 1 through black high-viscosity double-sided adhesive tape. A metal cover is added on the outside to fix the tempered glass. The metal cover is connected to the housing 1 through connecting bolts. Therefore, a sealing effect is achieved at the window, and combustibles are prevented from entering the housing 1 again. The camera and the laser are directly opposite to the department windows, which facilitates camera imaging and laser emission. Because thickened anti-reflection tempered glass is provided, the strength of the tempered glass can meet the requirements.

[0034] like Figure 4 , Figure 5As shown, in order to prevent combustibles from entering the housing 1 through the threading hole 12 of the housing 1, a sealing device is provided at the threading hole 12, and the sealing device can be set as a limiting sealing assembly 3, which includes a pressure plate 31, a sealing pad 32 and a fastening bolt 33. A connecting pipe 34 is fixedly provided on the side of the pressure plate 31, and the fastening bolt 33 is set through the connecting pipe 34, and the sealing pad 32 is fitted on the pressure plate 31. At the same time, a thread groove 15 is provided on the side of the threading hole 12, and the pressure plate 31 and the sealing pad 32 are arranged opposite to the threading hole 12, and the size is larger than the diameter of the threading hole 12. The end of the fastening bolt 33 is threadedly inserted into the thread groove 15. With this arrangement, after the cable passes through the threading hole 12, by rotating the fastening bolt 33, the pressure plate 31 is forced to move and squeeze the sealing pad 32, so that the sealing pad 32 is deformed and squeezes the cable, so as to achieve the setting of the cable bending and fitting the side wall of the housing 1. Because the sealing gasket 32 ​​is deformed and its size is larger than the diameter of the threading hole 12, the threading hole 12 can be effectively blocked, once again preventing combustibles from entering the housing 1, effectively reducing the probability of external explosion caused by internal deflagration of the equipment.

[0035] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may be modified and varied in various ways. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A 3D camera with an explosion-proof structure, characterized in that: The invention comprises a shell (1), wherein the shell (1) is configured as a three-dimensional frame with an opening on the upper side, wherein a camera and a laser are arranged inside the shell, an annular groove (11) is arranged at the upper end of the shell (1), a sealing strip is arranged at the bottom of the annular groove (11), an upper cover (2) is arranged at the opening of the shell (1), an annular baffle (21) is fixedly arranged on the lower side of the upper cover (2), the annular baffle (21) is inserted into the annular groove (11) and presses the sealing strip; and a sealing device is arranged at the threading hole (12) of the shell (1).

2. A 3D camera with an explosion-proof structure according to claim 1, characterized in that: The shell (1) and the upper cover (2) are both made of aluminum alloy, and the thickness of the aluminum alloy is at least 9 mm. The upper cover (2) and the shell (1) are connected by connecting bolts.

3. The 3D camera with an explosion-proof structure according to claim 2, characterized in that: A second visual window (14) and two first visual windows (13) are arranged on the front side of the housing (1), and tempered glass is arranged at each of the visual windows.

4. The 3D camera with an explosion-proof structure according to claim 3, characterized in that: The two first visible windows (13) are respectively located on both sides of the second visible window (14); the first visible window (13) faces the camera, and the second visible window (14) faces the laser.

5. The 3D camera with an explosion-proof structure according to claim 1, characterized in that: The sealing device can be configured as a limiting sealing assembly (3), the limiting sealing assembly (3) comprising a pressure plate (31), a sealing gasket (32) and a fastening bolt (33), a connecting pipe (34) being fixedly arranged on the side of the pressure plate (31), the fastening bolt (33) being arranged through the connecting pipe (34), and the sealing gasket (32) being arranged in a close fit on the pressure plate (31).

6. The 3D camera with an explosion-proof structure according to claim 5, characterized in that: A thread groove (15) is provided on the side of the threading hole (12); the size of the pressure plate (31) and the sealing gasket (32) is larger than the diameter of the threading hole (12) and they are arranged opposite to the threading hole (12); the end of the fastening bolt (33) is threadedly inserted into the thread groove (15), and the sealing gasket (32) is arranged to fit the housing (1).

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