Explosion-proof dust removal device

Abstract

The utility model relates to the technical field of video monitoring, and discloses an anti-explosion dust removal device which comprises an anti-explosion cylinder, window glass is installed on the front face of the anti-explosion cylinder, a machine core assembly is installed in the anti-explosion cylinder, and the top of the anti-explosion cylinder is communicated with a dust removal mechanism. The inner explosion-proof surface of the explosion-proof cylinder and the outer explosion-proof surface of the rear cover of the explosion-proof cylinder form a fifth explosion-proof combination surface, the outer explosion-proof surface of the glass window and the inner explosion-proof surface of the explosion-proof cylinder are glued together to form a fourth explosion-proof combination surface, and the inner explosion-proof surface of the explosion-proof shell and the outer explosion-proof surface of the copper sleeve form a second explosion-proof combination surface. The outer explosion-proof surface of the motor and the explosion-proof surface in the copper sleeve form a third explosion-proof combination surface, and the outer explosion-proof surface of the explosion-proof rear cover and the inner explosion-proof surface of the explosion-proof shell form a first explosion-proof combination surface, so that flame generated by explosion is prevented from being transmitted to the outside of equipment to cause environmental explosion, and meanwhile, the explosion-proof combination surfaces are formed to prevent the explosion of the equipment from occurring. Therefore, the weight and the size of parts in the equipment are reduced, and the production cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of video monitoring, and more specifically to an explosion-proof dust removal device. Background Art

[0002] Explosion-proof monitoring products are often used in places with harsh environments. Window glass is an important component of monitoring products. If dust falls on the glass, it will block the picture and affect the function.

[0003] The current video surveillance technologies mainly include the following solutions:

[0004] Solution 1: Similar to the windshield wiper solution, the dust is scraped off the glass. The disadvantage of this solution is that it is not effective when the dust is mixed with water or oily liquids, and dry scraping will damage the glass.

[0005] Solution 2: Coating solution, which reduces the adhesion of dust, but the life of the coating in this solution has never been high enough;

[0006] Solution 3: Add a water spray device and spray water regularly. The disadvantages of this solution are that the water spray device is huge in size, needs to be filled with water regularly, and the water spray effect is average for dust with strong adhesion. Utility Model Content

[0007] In order to solve the problems raised in the above background technology, the utility model provides an explosion-proof dust removal device.

[0008] The utility model provides an explosion-proof dust removal device adopts the following technical solutions:

[0009] An explosion-proof dust removal device comprises an explosion-proof tube, a window glass is installed on the front of the explosion-proof tube, a core assembly is installed inside the explosion-proof tube, a rear cover of the explosion-proof tube is threadedly connected to the back of the explosion-proof tube, and a dust removal mechanism is connected to the top of the explosion-proof tube;

[0010] The dust removal mechanism includes a power assembly, an air inlet duct, and an air guide hood. One end of the power assembly is connected to the air inlet duct, and fan blades are installed inside the air inlet duct. A motor is installed inside the power assembly, and the output end of the motor is fixedly connected to the fan blades, so that the motor drives the fan blades to rotate. The other end of the air inlet duct is connected to the air guide hood, and one end of the air guide hood is provided with an air outlet located above the window glass, so that the air guide hood blows wind through the air outlet to the dust on the surface of the window glass.

[0011] Preferably, the window glass includes a glass window, a silicone gasket, and a glass pressure plate. A glass groove is provided on the front of the explosion-proof cylinder, a glass window is inlaid inside the glass groove, a glass pressure plate is installed on one side of the glass window, the glass pressure plate is fixedly connected to the glass groove, and a silicone gasket is installed between the glass pressure plate and the glass window.

[0012] Preferably, a motor drive plate is installed on one side of the movement assembly, an explosion-proof tube back cover is fixedly connected to the back of the explosion-proof tube, and a sealing ring is installed between the explosion-proof tube back cover and the explosion-proof tube.

[0013] Preferably, the power assembly includes an explosion-proof casing, a motor is installed inside the explosion-proof casing, a ventilation duct connected to the explosion-proof cylinder is opened at the bottom of the explosion-proof casing, a first bearing is rotatably connected to the surface of the output shaft of the motor, the first bearing is installed in a copper sleeve embedded in the explosion-proof casing, the other end of the output shaft of the motor is rotatably connected to a second bearing fixed in the explosion-proof casing, and an oil seal is installed at the position where the output end of the motor passes through the explosion-proof casing.

[0014] Preferably, the air inlets on both sides of the air inlet duct are fixedly connected with filter screens, the inside of the air inlet duct is equipped with fan blades, the internal threads of the fan blades are connected with blade fixing screws, and the fan blades are fixedly mounted on the output shaft of the motor through the blade fixing screws.

[0015] Preferably, an explosion-proof surface is provided inside the explosion-proof cylinder, an explosion-proof surface is provided on the outer surface of the explosion-proof cylinder back cover, the inner explosion-proof surface of the explosion-proof cylinder and the outer explosion-proof surface of the explosion-proof cylinder back cover form a fifth explosion-proof bonding surface, an explosion-proof surface is provided on the outer surface of the glass window, an explosion-proof surface is provided inside the explosion-proof cylinder, and an explosion-proof surface is provided on the outer surface of the glass window; the outer explosion-proof surface of the glass window and the inner explosion-proof surface of the explosion-proof cylinder are bonded together to form a fourth explosion-proof bonding surface, an explosion-proof surface is provided inside the explosion-proof shell, an explosion-proof surface is provided on the outer surface of the copper sleeve, the inner explosion-proof surface of the explosion-proof shell and the outer explosion-proof surface of the copper sleeve form a second explosion-proof bonding surface, an explosion-proof surface is provided on the outer surface of the motor, an explosion-proof surface is provided inside the copper sleeve, the outer explosion-proof surface of the motor and the explosion-proof surface inside the copper sleeve form a third explosion-proof bonding surface, an explosion-proof surface is provided on the outer surface of the explosion-proof back cover, and the outer explosion-proof surface of the explosion-proof back cover and the inner explosion-proof surface of the explosion-proof shell form a first explosion-proof bonding surface.

[0016] Preferably, the motor drive board and the motor are connected via a cable connector.

[0017] In summary, the utility model includes the following beneficial technical effects:

[0018] 1. The utility model forms a fifth explosion-proof joint surface through the inner explosion-proof surface of the explosion-proof cylinder and the outer explosion-proof surface of the explosion-proof cylinder back cover, the outer explosion-proof surface of the glass window and the inner explosion-proof surface of the explosion-proof cylinder are bonded together to form a fourth explosion-proof joint surface, the inner explosion-proof surface of the explosion-proof shell and the outer explosion-proof surface of the copper sleeve form a second explosion-proof joint surface, the outer explosion-proof surface of the motor and the explosion-proof surface inside the copper sleeve form a third explosion-proof joint surface, and the outer explosion-proof surface of the explosion-proof back cover and the inner explosion-proof surface of the explosion-proof shell form a first explosion-proof joint surface, thereby preventing the flame generated by the explosion from being transmitted to the outside of the equipment, thereby causing an environmental explosion. The design of this explosion-proof joint surface strictly follows the explosion-proof surface length and gap design required by the explosion-proof design standard, and at the same time, by forming the explosion-proof joint surface, the weight and volume of the parts in the equipment are reduced, thereby reducing the production cost.

[0019] 2. The utility model continuously blows filtered clean air to the surface of the glass window through the fan blades, and uses clean air to isolate the dust outside the glass window, so that the dust will not contact the glass window, achieving a non-contact dust removal method, and thus will not affect the monitored screen. At the same time, the motor and the movement components are installed separately, which increases the utilization rate of the device space and reduces the size of the device. At the same time, during the dust removal process, the heat emitted by the internal components of the explosion-proof tube is taken out through the ventilation duct, thereby reducing the internal temperature of the explosion-proof tube and increasing the life of the entire device. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the front three-dimensional structure in an embodiment of the utility model;

[0021] Figure 2 It is a schematic diagram of the internal structure in an embodiment of the utility model;

[0022] Figure 3 It is the embodiment of the utility model Figure 2 A schematic diagram of the enlarged structure at A in the middle;

[0023] Figure 4 It is a schematic diagram of the explosion structure in the embodiment of the utility model;

[0024] Figure 5 It is a schematic diagram of the explosion structure of the dust removal structure in the embodiment of the utility model;

[0025] Figure 6 It is a structural schematic diagram of the dust removal mechanism in the embodiment of the utility model;

[0026] Figure 7 It is the embodiment of the utility model Figure 6 Schematic diagram of the structure at B in the middle;

[0027] Figure 8 It is a schematic diagram of the process flow of the dust removal device in the embodiment of the utility model.

[0028] Explanation of the accompanying drawings: 1. explosion-proof cylinder; 2. window glass; 21. glass groove; 22. glass window; 23. silicone gasket; 24. glass pressure plate; 3. movement assembly; 4. motor drive board; 5. sealing ring; 6. explosion-proof cylinder back cover; 7. dust removal mechanism; 71. power assembly; 710. explosion-proof casing; 711. ventilation duct; 712. copper sleeve; 713. first bearing; 714. motor; 715. second bearing; 716. oil seal; 717. explosion-proof back cover; 718. first explosion-proof joint surface; 719. second explosion-proof joint surface; 7191. third explosion-proof joint surface; 72. air inlet pipe; 721. filter screen; 722. blade fixing screw; 723. fan blade; 73. wind guide cover; 731. air outlet; 8. fourth explosion-proof joint surface; 9. fifth explosion-proof joint surface. DETAILED DESCRIPTION

[0029] The following is combined with Figure 1-8 The utility model is described in further detail.

[0030] It should be noted that the drawings are schematic and not to scale. For the sake of clarity and convenience, the relative sizes and proportions of the parts shown in the drawings are exaggerated or reduced in size, and any size is only illustrative and not restrictive. In addition, the same reference symbol is used for the same structure, element or accessory appearing in more than two figures to reflect similar features.

[0031] The utility model discloses an explosion-proof dust removal device. Figure 1-8 An explosion-proof dust removal device comprises an explosion-proof cylinder 1, a window glass 2 is installed on the front of the explosion-proof cylinder 1, the window glass 2 comprises a glass window 22, a silicone gasket 23, and a glass pressing plate 24, a glass groove 21 is opened on the front of the explosion-proof cylinder 1, a glass window 22 is inlaid inside the glass groove 21, an outer surface of the glass window 22 is provided with an explosion-proof surface, an inner part of the explosion-proof cylinder 1 is provided with an explosion-proof surface, and an outer surface of the glass window 22 is provided with an explosion-proof surface. The outer explosion-proof surface of the glass window 22 and the inner explosion-proof surface of the explosion-proof cylinder 1 are bonded together to form a fourth explosion-proof joint surface 8, a glass pressing plate 24 is installed on one side of the glass window 22, and the glass pressing plate 24 and the glass groove 2 1 is fixedly connected, a silicone gasket 23 is installed between the glass pressure plate 24 and the glass window 22, a core assembly 3 is installed inside the explosion-proof cylinder 1, a motor drive board 4 is installed on one side of the core assembly 3, an explosion-proof cylinder back cover 6 is fixedly connected to the back of the explosion-proof cylinder 1, a flameproof surface is provided inside the explosion-proof cylinder 1, a flameproof surface is provided on the outer surface of the explosion-proof cylinder back cover 6, the inner flameproof surface of the explosion-proof cylinder 1 and the outer flameproof surface of the explosion-proof cylinder back cover 6 form a fifth flameproof joint surface 9, a sealing ring 5 is installed between the explosion-proof cylinder back cover 6 and the explosion-proof cylinder 1, the back of the explosion-proof cylinder 1 is threadedly connected to the explosion-proof cylinder back cover 6, and the top of the explosion-proof cylinder 1 is connected to a dust removal mechanism 7;

[0032] The dust removal mechanism 7 is composed of a power assembly 71, an air inlet pipe 72, and an air guide cover 73. The power assembly 71 includes an explosion-proof housing 710, a motor 714 is installed inside the explosion-proof housing 710, and a ventilation duct 711 connected to the explosion-proof cylinder 1 is opened at the bottom of the explosion-proof housing 710. The surface of the output shaft of the motor 714 is rotatably connected with a first bearing 713, and the first bearing 713 is installed in a copper sleeve 712 embedded in the explosion-proof housing 710. The outer surface of the motor 714 is provided with a flameproof surface, and the inside of the copper sleeve 712 is provided with a flameproof surface, and the outer flameproof surface of the motor 714 and the flameproof surface in the copper sleeve 712 form a third flameproof joint surface 7191. The other end of the output shaft of the motor 714 is rotatably connected with a second bearing 715 fixed in the explosion-proof housing 710, and an oil seal 716 is installed at the position where the output end of the motor 714 passes through the explosion-proof housing 710, and one end of the explosion-proof housing 710 is inserted into the inside of the air inlet pipe 72;

[0033] The air inlets on both sides of the air inlet pipe 72 are fixedly connected with filter screens 721 for filtering dust in the air. A fan blade 723 is installed inside the air inlet pipe 72, and the fan blade 723 is located at the center of the two filter screens 721. The internal thread of the fan blade 723 is connected with a blade fixing screw 722. The fan blade 723 is fixedly installed on the output shaft of the motor 714 through the blade fixing screw 722, so that the motor 714 drives the fan blade 723 to rotate. The other end of the air inlet pipe 72 is connected with an air guide cover 73. One end of the air guide cover 73 is provided with an air outlet 731 located above the window glass 2, and the air guide cover 73 is used to blow the wind through the air outlet 731 to the dust on the surface of the window glass 2 to achieve the purpose of cleaning the dust.

[0034] Specifically, the inner explosion-proof surface of the explosion-proof tube 1 and the outer explosion-proof surface of the explosion-proof tube back cover 6 form a fifth explosion-proof joint surface 9, the outer explosion-proof surface of the glass window 22 and the inner explosion-proof surface of the explosion-proof tube 1 are glued together to form a fourth explosion-proof joint surface 8, the inner explosion-proof surface of the explosion-proof housing 710 and the outer explosion-proof surface of the copper sleeve 712 form a second explosion-proof joint surface 719, the outer explosion-proof surface of the motor 714 and the explosion-proof surface inside the copper sleeve 712 form a third explosion-proof joint surface 7191, and the outer explosion-proof surface of the explosion-proof back cover 717 and the inner explosion-proof surface of the explosion-proof housing 710 form a first explosion-proof joint surface 718, thereby preventing the flame generated by the explosion from being transmitted to the outside of the equipment, thereby causing an environmental explosion. The design of this explosion-proof joint surface strictly follows the explosion-proof surface length and gap design required in the explosion-proof design standard, and at the same time, by forming the explosion-proof joint surface, the weight and volume of the parts in the equipment are reduced, thereby reducing the production cost;

[0035] The movement component 3 is installed with sensors including SOC and network connection module. The dust sensor is connected to the SOC signal through 485\232 protocol, the SOC is connected to the motor drive board 4 signal, the motor drive board 4 is connected to the motor 714 through a cable connector, the SOC is connected to the network connection module signal, the network connection module is connected to the remote controller, and the motor 714 is connected to the SOC signal.

[0036] Specifically, when the dust sensor detects that the dust content in the air reaches a threshold value, the information is transmitted to the SOC, and the SOC starts the motor 714 in the dust removal mechanism 7 through the motor drive board 4. The motor 714 rotates to drive the fan blades 723 to rotate. The fan blades 723 rotate to suck air from the air inlets on both sides of the air inlet pipe 72, and then the flowing air is ejected through the wind guide cover 73 to clean the dust on the surface of the glass window 22. At the same time, the flowing air enters the explosion-proof tube 1, driving the heat dissipated by the components in the explosion-proof tube 1. The SOC can also automatically adjust the speed of the motor 714 according to the dust measurement value transmitted by the dust sensor to achieve the purpose of adjusting the air volume;

[0037] When the surveillance camera is blurred, the staff sends a command to start the motor 714 to the SOC through the remote controller, and then the command is transmitted to the network connection module through the network, and then the network connection module transmits the control command to the SOC, and the SOC starts the motor 714 through the motor drive board 4, and the motor 714 rotates to drive the fan blades 723 to rotate, and the fan blades 723 rotate to suck air from the air inlets on both sides of the air inlet pipe 72, and then the flowing air is ejected through the air guide cover 73 to clean the dust on the surface of the glass window 22;

[0038] The time for the SOC to start the motor 714 and the size of the air volume are preset on the SOC, and then the SOC controls the motor 714 to start and drive the fan blades 723 to rotate according to the preset time and air volume. The fan blades 723 rotate to inhale air from the air inlets on both sides of the air inlet pipe 72, and then the flowing air is ejected through the air guide cover 73 to clean the dust on the surface of the glass window 22;

[0039] When an abnormality occurs in the motor 714 , the motor 714 transmits information to the SOC, and then the SOC transmits the alarm in detail to relevant personnel and stops the operation of the motor 714 .

[0040] Through the above-mentioned structural design, the fan blades 723 can continuously blow the filtered clean air to the surface of the glass window 22, and use clean air to isolate the dust outside the glass window 22, so that the dust will not contact the glass window 22, thereby achieving a non-contact dust removal method, and thus will not affect the monitored image. At the same time, the motor 714 is installed separately from the movement assembly 3, which increases the utilization rate of the device space and reduces the size of the device. At the same time, during the dust removal process, the heat emitted by the internal components of the explosion-proof tube 1 is brought out through the ventilation duct 711, thereby reducing the internal temperature of the explosion-proof tube 1 and increasing the life of the entire device.

[0041] Finally, a few points should be explained: First, in the description of the present utility model, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, which may refer to mechanical connection or electrical connection, or internal communication between two components, or direct connection. "upper", "lower", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may change;

[0042] Secondly: In the drawings of the embodiments disclosed in the present utility model, only the structures related to the embodiments disclosed in the present utility model are involved, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present utility model can be combined with each other;

[0043] Finally: The above are only preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model should be included in the protection scope of the present utility model.

Claims

1. An explosion-proof dust removal device, comprising an explosion-proof tube (1), characterized in that: A window glass (2) is installed on the front of the explosion-proof cylinder (1), a core assembly (3) is installed inside the explosion-proof cylinder (1), an explosion-proof cylinder rear cover (6) is threadedly connected to the back of the explosion-proof cylinder (1), and a dust removal mechanism (7) is connected to the top of the explosion-proof cylinder (1); The dust removal mechanism (7) comprises a power assembly (71), an air inlet pipe (72), and an air guide cover (73); one end of the power assembly (71) is connected to the air inlet pipe (72); a fan blade (723) is installed inside the air inlet pipe (72); a motor (714) is installed inside the power assembly (71), and an output end of the motor (714) is fixedly connected to the fan blade (723), so that the motor (714) drives the fan blade (723) to rotate; the other end of the air inlet pipe (72) is connected to the air guide cover (73); one end of the air guide cover (73) is provided with an air outlet (731) located above the window glass (2), so that the air guide cover (73) can blow wind through the air outlet (731) toward the dust on the surface of the window glass (2).

2. The explosion-proof dust removal device according to claim 1, characterized in that: The window glass (2) comprises a glass window (22), a silicone gasket (23), and a glass pressing plate (24). A glass groove (21) is provided on the front of the explosion-proof cylinder (1), a glass window (22) is embedded in the glass groove (21), a glass pressing plate (24) is installed on one side of the glass window (22), the glass pressing plate (24) is fixedly connected to the glass groove (21), and a silicone gasket (23) is installed between the glass pressing plate (24) and the glass window (22).

3. An explosion-proof dust removal device according to claim 2, characterized in that: A motor drive plate (4) is installed on one side of the movement assembly (3); an explosion-proof tube rear cover (6) is fixedly connected to the back of the explosion-proof tube (1); and a sealing ring (5) is installed between the explosion-proof tube rear cover (6) and the explosion-proof tube (1).

4. The explosion-proof dust removal device according to claim 3, characterized in that: The power assembly (71) comprises an explosion-proof housing (710), a motor (714) is installed inside the explosion-proof housing (710), a ventilation duct (711) connected to the explosion-proof cylinder (1) is provided at the bottom of the explosion-proof housing (710), a first bearing (713) is rotatably connected to the surface of the output shaft of the motor (714), the first bearing (713) is installed in a copper sleeve (712) embedded in the explosion-proof housing (710), the other end of the output shaft of the motor (714) is rotatably connected to a second bearing (715) fixed in the explosion-proof housing (710), and an oil seal (716) is installed at a position where the output end of the motor (714) passes through the explosion-proof housing (710).

5. The explosion-proof dust removal device according to claim 4, characterized in that: The air inlets on both sides of the air inlet pipe (72) are fixedly connected with filter screens (721), the fan blades (723) are located at the center of the two filter screens (721), the internal threads of the fan blades (723) are connected with blade fixing screws (722), and the fan blades (723) are fixedly mounted on the output shaft of the motor (714) through the blade fixing screws (722).

6. The explosion-proof dust removal device according to claim 5, characterized in that: The explosion-proof tube (1) is provided with an explosion-proof surface inside, the explosion-proof tube rear cover (6) is provided with an explosion-proof surface outside, the inner explosion-proof surface of the explosion-proof tube (1) and the outer explosion-proof surface of the explosion-proof tube rear cover (6) form a fifth explosion-proof joint surface (9), the outer surface of the glass window (22) is provided with an explosion-proof surface, the explosion-proof tube (1) is provided with an explosion-proof surface inside, the outer surface of the glass window (22) is provided with an explosion-proof surface, the outer explosion-proof surface of the glass window (22) and the inner explosion-proof surface of the explosion-proof tube (1) are bonded together to form a fourth explosion-proof joint surface (8), the explosion-proof shell (710) is provided with an explosion-proof surface inside, and the copper sleeve (712) is provided with an explosion-proof surface. The outer surface is provided with a flameproof surface, the inner flameproof surface of the flameproof housing (710) and the outer flameproof surface of the copper sleeve (712) form a second flameproof joint surface (719), the outer surface of the motor (714) is provided with a flameproof surface, the inside of the copper sleeve (712) is provided with a flameproof surface, the outer flameproof surface of the motor (714) and the inner flameproof surface of the copper sleeve (712) form a third flameproof joint surface (7191), the outer surface of the flameproof rear cover (717) is provided with a flameproof surface, and the outer flameproof surface of the flameproof rear cover (717) and the inner flameproof surface of the flameproof housing (710) form a first flameproof joint surface (718).

7. An explosion-proof dust removal device according to claim 6, characterized in that: The motor drive board (4) and the motor (714) are connected via a cable connector.

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