Explosion-proof camera

Abstract

The application discloses an explosion-proof camera, the explosion-proof camera comprises a first shell and a second shell, the two shells are respectively provided with a first explosion-proof cavity and a second explosion-proof cavity, along a first direction, two ends of the first shell are respectively provided with a first explosion-proof through hole and a second explosion-proof through hole, and the first explosion-proof through hole is provided with a transmission shaft; the two ends of the second shell extend to form first adapter shafts respectively, and the pair of first adapter shafts of the second shell are rotationally installed on the first shell through the pair of installation lugs of the first shell. Then, on one hand, a first motor in the first shell can drive the second shell to rotate through a transmission shaft and an external transmission assembly; on the other hand, a cable extending out of a main control module in the first shell sequentially penetrates through a second explosion-proof through hole and a first adapter shaft on the same side to be connected to a lens module in the second shell; compared with the mode that all parts of the explosion-proof camera are arranged in an explosion-proof cavity, the volume of the explosion-proof cavity is reduced, and the requirement for light weight is met.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of camera technology, in particular to an explosion-proof camera. BACKGROUND

[0002] In some places related to the production, processing, storage and transportation of explosive substances, electrical equipment needs to take explosion-proof measures to avoid becoming a dangerous ignition source, for example, explosion-proof cameras need to be used in the above-mentioned places.

[0003] However, under the condition of meeting the industry and national standards of explosion-proof equipment, the existing explosion-proof camera is relatively bulky and cannot meet the lightweight requirement. SUMMARY

[0004] In order to solve at least one of the above technical problems, the present application provides an explosion-proof camera, which comprises a first shell and a second shell, the two shells form a first explosion-proof cavity and a second explosion-proof cavity respectively, the two explosion-proof cavities are independently arranged and are respectively used for mounting a main control module and a lens module, then, the cable connecting the main control module and the lens module and the transmission assembly connecting the two shells are arranged outside the two explosion-proof cavities, so as to improve the lightweight level of the explosion-proof camera, thereby solving the above technical problems.

[0005] The present application provides an explosion-proof camera, which comprises:

[0006] The first shell has a first explosion-proof cavity, and the second shell has a second explosion-proof cavity, the main control module and the first motor are installed in the first explosion-proof cavity, and the lens module is installed in the second explosion-proof cavity;

[0007] The first shell is provided with a first explosion-proof through hole and a second explosion-proof through hole at both ends along a first direction, the first explosion-proof through hole is provided with a rotatable transmission shaft, the transmission shaft extends into the end of the first explosion-proof cavity and is in transmission connection with the first motor, and the second explosion-proof through hole is used for the cable extending from the main control module to pass out;

[0008] The second shell extends a first adapter shaft at both ends along the first direction, and a pair of first adapter shafts are coaxially arranged;

[0009] The pair of first adapter shafts are rotatably mounted on the first shell through a pair of mounting ears extending from the first shell;

[0010] And, the transmission shaft and the first adapter shaft on the same side are connected through a transmission assembly, so that the first motor is used to drive the second shell to rotate in the first direction as the rotation direction, and the cable penetrates into the second explosion-proof cavity from the first adapter shaft on the same side and is connected with the lens module, so that the lens module is controlled by the master control module.

[0011] In an embodiment, preferably, a pair of mounting ears respectively extend from the first explosion-proof through hole and the second explosion-proof through hole, and the first shell comprises a pair of side covers used for covering the mounting ears, so that a pair of side covers and a pair of mounting ears are respectively connected and mounted to form a first non-explosion-proof cavity and a second non-explosion-proof cavity.

[0012] Among them, the first non-explosion-proof cavity is used for accommodating the transmission shaft, the first adapter shaft and the transmission assembly on the same side, and the second non-explosion-proof cavity is used for accommodating the second explosion-proof through hole, the first adapter shaft and the cable on the same side.

[0013] In an embodiment, preferably, an end of the mounting ear is provided with an adapter through hole for the first adapter shaft to pass through, and the first adapter shaft is rotatably installed on the mounting ear through a shaft sleeve assembly.

[0014] In an embodiment, preferably, the first adapter shaft on the same side as the cable is hollow, and the cable is inserted and mounted in the first adapter shaft on the same side through a filler.

[0015] In an embodiment, preferably, the transmission assembly comprises a first transmission gear, a second transmission gear and a transmission member.

[0016] Among them, the first transmission gear is fixedly installed on the end of the transmission shaft extending from the first explosion-proof cavity, the second transmission gear is fixed on the end of the first adapter shaft, and the transmission member is used for transmission connection with the first transmission gear and the second transmission gear respectively, so that the first transmission gear drives the second transmission gear to rotate through the transmission member.

[0017] In an embodiment, preferably, the transmission member comprises any one of a transmission belt and a transmission gear.

[0018] In an embodiment, preferably, the transmission member comprises a first transmission belt.

[0019] Among them, the first transmission gear and the second transmission gear have equal radius and transmission ratio of 1.

[0020] The transmission assembly further comprises a connecting rod, the length of the connecting rod is consistent with the length from the center of the first transmission gear to the center of the second transmission gear, and the two ends of the connecting rod are fixed to the eccentric positions on the surfaces of the first transmission gear and the second transmission gear respectively.

[0021] In an embodiment, preferably, the transmission assembly further comprises a tensioning mechanism, the tensioning mechanism comprises a pair of fixed metal plates arranged on the two sides of the first transmission belt, and the fixed metal plates are provided with tensioning wheels.

[0022] In an embodiment, preferably, the first motor is fixedly installed on the first explosion-proof cavity through a motor mounting plate, and the motor mounting plate is arranged perpendicularly to the first direction.

[0023] The first explosion-proof cavity is provided with a speed reduction gear next to the motor mounting plate, the motor shaft of the first motor is in transmission connection with the speed reduction gear, and the end of the transmission shaft extending into the first explosion-proof cavity is fixedly inserted into the speed reduction gear.

[0024] The motor mounting plate is fixedly provided with a first photoelectric detection module, and the first photoelectric detection module is used for detecting the rotation of the speed reduction gear.

[0025] In an embodiment, preferably, the mounting ears extend along a second direction, so that the first shell and the second shell are arranged in an up-down manner along the second direction, and the second direction is perpendicular to the first direction.

[0026] The first shell comprises a first fuselage and a mounting top cover, the first fuselage is provided with the first explosion-proof cavity, the mounting top cover is connected to the first fuselage in a rotatable manner with the second direction as the rotation axis direction, and the mounting top cover and the second shell are arranged at the opposite ends of the first fuselage respectively.

[0027] In an embodiment, preferably, the mounting top cover is provided with a second adapter shaft extending into the first explosion-proof cavity.

[0028] The second motor is installed in the first explosion-proof cavity, the second motor is in transmission connection with the end of the second adapter shaft, so that the second motor is used for driving the first fuselage to rotate relative to the mounting top cover with the second direction as the rotation axis direction.

[0029] In an embodiment, preferably, the end of the second adapter shaft is fixedly provided with a third transmission gear, and the motor shaft of the second motor is in transmission connection with the third transmission gear.

[0030] In an embodiment, preferably, the main control module comprises a main control power board, the main control power board is fixedly installed on the surface of the third transmission gear, and the second adapter shaft is hollow to allow a power line to pass through the second adapter shaft from the outside and be connected to the main control power board.

[0031] In an embodiment, preferably, the main control module comprises a device mounting seat, the device mounting seat is fixedly installed inside the first explosion-proof cavity;

[0032] In the second direction, the device mounting seat is provided with a rotatable slip ring in the projection area of the main control power board, the slip ring is coaxially arranged with the second adapter shaft, so that the main control power board is electrically connected to the fuselage device mounted on the device mounting seat through the slip ring.

[0033] In an embodiment, preferably, the second shell comprises a second fuselage and a second end cover, the second end cover closes the second fuselage to form the second explosion-proof cavity;

[0034] The second end cover is provided with a lens view window, the lens module is mounted inside the second fuselage and arranged beside the lens view window.

[0035] In an embodiment, preferably, the second end cover is provided with a wiper module, a microphone module and a light supplementing module;

[0036] The second shell further comprises a third end cover, the third end cover closes the second fuselage to form a containing cavity, the containing cavity is in communication with the second explosion-proof cavity, and the containing cavity is used for containing a loudspeaker module.

[0037] The one or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages:

[0038] The explosion-proof camera provided by the embodiments of the present application comprises a first shell and a second shell, the two shells respectively have a first explosion-proof cavity and a second explosion-proof cavity, the first explosion-proof cavity is used for mounting a main control module, and the second explosion-proof cavity is used for mounting a lens module; in a first direction, two ends of the first shell are respectively provided with a first explosion-proof through hole and a second explosion-proof through hole, the first explosion-proof through hole is mounted with a transmission shaft; two ends of the second shell respectively extend a first adapter shaft, and the pair of first adapter shafts of the second shell are rotatably mounted on the first shell through a pair of mounting ears of the first shell; on one hand, a first motor inside the first shell (i.e. in the first explosion-proof cavity) can drive the second shell to rotate through the transmission shaft and an external transmission assembly; on the other hand, a cable extended by the main control module inside the first shell can be connected to the lens module inside the second shell (i.e. in the second explosion-proof cavity) by sequentially passing through the second explosion-proof through hole and a first adapter shaft on the same side.

[0039] In other words, in order to solve the problem of the heavy anti-explosion camera, the embodiment seals the main control module and the lens module by two independent explosion-proof cavities respectively, and then sets the transmission assembly and the cable which will not generate electric spark outside the two explosion-proof cavities. Since the explosion-proof cavities only need to seal the main control module and the lens module, and the transmission assembly and the cable are excluded outside the explosion-proof cavities, compared with setting all components of the anti-explosion camera in the explosion-proof cavity, the volume of the explosion-proof cavity is reduced, the weight of the anti-explosion camera is greatly reduced, the light weight requirement of the anti-explosion camera is met, and the technical problem that the existing anti-explosion camera cannot meet the light weight requirement due to being heavy is solved. BRIEF DESCRIPTION OF DRAWINGS

[0040] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the description of the embodiments of the present application. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0041] Figure 1 It is a schematic diagram of the overall structure of the anti-explosion camera in the embodiment of the present application.

[0042] Figure 2 It is a schematic diagram of the overall structure of the anti-explosion camera in the embodiment of the present application. Figure 1 It is a schematic diagram of the overall structure of the anti-explosion camera in the embodiment of the present application.

[0043] Figure 3 It is a schematic diagram of the overall structure of the anti-explosion camera in the embodiment of the present application. Figure 1 It is a schematic diagram of the overall structure of the anti-explosion camera in the embodiment of the present application.

[0044] Figure 4 It is a schematic diagram of the overall structure of the anti-explosion camera in the embodiment of the present application. Figure 1 It is a schematic diagram of the overall structure of the anti-explosion camera in the embodiment of the present application.

[0045] Figure 5 It is a schematic diagram of the overall structure of the anti-explosion camera in the embodiment of the present application. Figure 2 It is a schematic diagram of the overall structure of the anti-explosion camera in the embodiment of the present application.

[0046] Figure 6 It is a schematic diagram of the overall structure of the anti-explosion camera in the embodiment of the present application. Figure 3 It is a schematic diagram of the overall structure of the anti-explosion camera in the embodiment of the present application.

[0047] Figure 7 It is a schematic diagram of the overall structure of the anti-explosion camera in the embodiment of the present application.

[0048] Figure 8 It is a schematic diagram of the overall structure of the anti-explosion camera in the embodiment of the present application.

[0049] Figure 9 It is a schematic diagram of the overall structure of the anti-explosion camera in the embodiment of the present application.

[0050] Figure 10 Structure diagram of the second shell in the embodiments of the present application.

[0051] Figure 11 Structure diagram of the explosion of Figure 10

[0052] Wherein, the reference signs are:

[0053] 10-first shell, 12-second explosion-proof through hole, 13-transmission shaft, 14-mounting ear, 15-side cover, 16-first body, 17-mounting top cover, 18-first end cover,

[0054] 141-adapting through hole, 142-shaft sleeve assembly,

[0055] 171-second adapting shaft,

[0056] 20-second shell, 21-first adapting shaft, 22-lens module, 23-second body, 24-second end cover, 25-third end cover, 26-lens window,

[0057] 31-first explosion-proof cavity, 32-second explosion-proof cavity,

[0058] 41-first non-explosion-proof cavity, 42-second non-explosion-proof cavity, 43-receiving cavity,

[0059] 51-first motor, 52-motor mounting plate, 53-reduction gear, 54-first photoelectric detection module,

[0060] 61-second motor, 62-third transmission gear, 63-second transmission belt, 64-horizontal photoelectric plate,

[0061] 70-cable, 71-filler,

[0062] 80-transmission assembly, 81-first transmission gear, 82-second transmission gear, 83-first transmission belt, 84-link, 85-fixed sheet metal, 86-tensioning wheel, 87-spring, 88-fixed seat,

[0063] 91-master power supply board, 92-device mounting seat, 93-slip ring,

[0064] 100-wiper module, 200-microphone module, 300-light supplementing module, 400-horn module, 500-power line,

[0065] X-first direction, Y-second direction. DETAILED DESCRIPTION

[0066] ​For better understanding of the above technical solutions, the example embodiments of the present application will be described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. It should be understood that the present application is not limited to the example embodiments described herein.

[0067] Figures 1-4 A structural schematic diagram of each view angle of the explosion-proof camera, Figure 5 and Figure 6 A sectional view, please combine Figures 1-6 An explosion-proof camera, the explosion-proof camera comprises a first shell 10 with a first explosion-proof cavity 31 and a second shell 20 with a second explosion-proof cavity 32, a main control module and a first motor 51 are installed in the first explosion-proof cavity 31, and a lens module 22 is installed in the second explosion-proof cavity 32; the first shell 10 is provided with a first explosion-proof through hole and a second explosion-proof through hole 12 at both ends along a first direction X, the first explosion-proof through hole is provided with a rotatable transmission shaft 13, the transmission shaft 13 is in transmission connection with the first motor 51 at the end of the first explosion-proof cavity 31, and the second explosion-proof through hole 12 is used for the cable 70 extending out of the main control module to pass out.

[0068] Among them, the pair of first adapter shafts 21 are rotatably installed on the first shell 10 through a pair of mounting ears 14 extending from the first shell 10; and the transmission shaft 13 and the first adapter shaft 21 on the same side are in transmission connection through a transmission assembly 80, so that the first motor 51 is used to drive the second shell 20 to rotate around the first direction X as the rotation axis direction, the cable 70 passes into the second explosion-proof cavity 32 from the first adapter shaft 21 on the same side and is connected with the lens module 22, so that the lens module 22 is controlled by the main control module.

[0069] Overall, in order to meet the lightweight requirement of the explosion-proof camera, unlike the existing explosion-proof camera which puts all the components into the explosion-proof cavity, the present application uses two independent explosion-proof cavities to carry the main control module and the lens module respectively, and then sets the transmission assembly for driving the lens module to rotate and the cable for connecting the lens module outside the two explosion-proof cavities, so as to reduce the volume of the explosion-proof cavity and meet the lightweight requirement.

[0070] Specifically, regarding the first shell, the first shell has a first explosion-proof cavity for installing the main control module and the first motor; then, the first shell is provided with a first explosion-proof through hole and a second explosion-proof through hole at both ends along a first direction (for example, a horizontal direction).

[0071] In one aspect, the first explosion-proof through hole is provided with a transmission shaft, the transmission shaft extends in the first direction, and the transmission shaft is mounted in the first explosion-proof through hole, for example, by a bearing or the like, so that the transmission shaft can rotate relative to the first shell; and an end of the transmission shaft extending into the first explosion-proof cavity (or into the interior of the first shell) is in transmission connection with the first motor, so that it can be understood that the first motor can drive the transmission shaft to rotate; in another aspect, the main control module in the first explosion-proof cavity is connected with a cable, the cable can pass out of the second explosion-proof through hole, and it can be understood that the cable can be used to connect to the lens module in the second explosion-proof cavity.

[0072] Specifically, regarding the second shell, the two ends of the second shell in the first direction respectively extend a first adapter shaft, and the two first adapter shafts at the two ends are coaxially arranged.

[0073] Regarding the connection between the first shell and the second shell, in one aspect, the two ends of the first shell in the first direction extend a pair of mounting ears in the same direction, so that when the second shell is placed between the pair of mounting ears, the second shell can be rotatably mounted on the pair of mounting ears, that is, rotatably mounted on the first shell, through the pair of first adapter shafts; then, a transmission assembly can be arranged between the transmission shaft extending out of the first shell and the first adapter shaft on the same side, and it can be understood that, in combination with the above-mentioned driving of the first motor to rotate the transmission shaft, the first motor can further drive the second shell to rotate through the transmission shaft and the transmission assembly, and the rotation is the rotation of the second shell around the first direction as the rotation axis direction, so that the lens module in the second shell can capture the field of view at different angles.

[0074] In another aspect, in combination with the above-mentioned cable passing out of the second explosion-proof through hole of the first shell, the cable passing out can further pass into the second explosion-proof cavity through the first adapter shaft on the same side, so as to be electrically connected with the lens module, and it can be understood that in this way, the lens module in the second explosion-proof cavity can be controlled by the main control module in the first explosion-proof cavity.

[0075] It can be seen that the devices prone to generating electric sparks, such as the devices included in the main control module and the lens module, are independently enclosed in the two explosion-proof cavities in the embodiment, and the mechanical transmission structure (i.e., the above-mentioned transmission assembly, etc.), the cable and the like which will not generate electric sparks are excluded outside the explosion-proof cavities, so that compared with the scheme of placing all the devices of the camera in the explosion-proof cavities, the overall volume of the two explosion-proof cavities in the embodiment is smaller, greatly reducing the weight of the explosion-proof camera, and meeting the lightweight requirement of the explosion-proof camera on the premise of realizing the basic functions of the explosion-proof camera.

[0076] The embodiment of the present application provides a kind of explosion-proof camera, the explosion-proof camera includes first shell and second shell, two shell respectively with first explosion-proof cavity and second explosion-proof cavity, first explosion-proof cavity is used to install master control module, second explosion-proof cavity is used to install lens module;Wherein, along the first direction, the two ends of first shell are equipped with first explosion-proof through hole and second explosion-proof through hole respectively, first explosion-proof through hole is equipped with transmission shaft;The two ends of second shell respectively extend with first adapter shaft, and the pair of first adapter shaft of second shell is rotatably installed in first shell by the pair of mounting lug of first shell;Then, on the one hand, the first motor in the interior of first shell (i.e. in first explosion-proof cavity) can drive second shell by transmission shaft and external transmission assembly;On the other hand, the cable of master control module in the interior of first shell is sequentially connected to lens module in the interior of second shell (i.e. in second explosion-proof cavity) by second explosion-proof through hole and same side first adapter shaft.

[0077] In other words, for the problem that explosion-proof camera is heavy, the embodiment is closed master control module and lens module by two explosion-proof cavities independent of each other respectively, then, transmission assembly and cable that will not produce electric spark are arranged outside two explosion-proof cavities, since explosion-proof cavity only needs to close master control module and lens module, and transmission assembly and cable are excluded outside explosion-proof cavity, compared with arranging all components of explosion-proof camera in explosion-proof cavity, the volume of explosion-proof cavity is reduced, i.e. the weight of explosion-proof camera can be greatly reduced, the requirement of lightweight of explosion-proof camera is met, and the technical problem that existing explosion-proof camera cannot meet the requirement of lightweight due to being heavy is solved.

[0078] Regarding the packaging of the above-mentioned transmission assembly and cable, in one possible implementation, the pair of mounting lugs 14 respectively extend from the first explosion-proof through hole and the second explosion-proof through hole 12, the first shell 10 includes a pair of side covers 15, the side covers 15 are used to cover the mounting lugs 14, so that the pair of side covers 15 and the pair of mounting lugs 14 are respectively butted to form a first non-explosion-proof cavity 41 and a second non-explosion-proof cavity 42;Wherein, the first non-explosion-proof cavity 41 is used to accommodate the transmission shaft 13, the first adapter shaft 21 and the transmission assembly 80 on the same side, and the second non-explosion-proof cavity 42 is used to accommodate the second explosion-proof through hole 12, the first adapter shaft 21 and the cable 70 on the same side.

[0079] Please combine Figure 5 That is, the transmission assembly and the cable on both sides of the explosion-proof camera can be respectively closed by the non-explosion-proof cavity.

[0080] The pair of mounting ears can extend from the regions of the two explosion-proof through holes of the first shell respectively, and then the mounting ears can be closed by the side covers. It can be understood that the first non-explosion-proof cavity and the second non-explosion-proof cavity can be formed by respectively butting the pair of side covers and the pair of mounting ears. For the first non-explosion-proof cavity, the transmission shaft, the transmission assembly of the first shell and one first adapter shaft of the second shell should be closed. For the second non-explosion-proof cavity, the second explosion-proof through hole of the first shell, the cable and the other first adapter shaft of the second shell should be closed.

[0081] It can be seen that, on the one hand, the mechanical transmission connection between the transmission shaft, the transmission assembly and one of the first adapter shafts on one side of the explosion-proof camera will not produce electric sparks, and on the other hand, the cable connecting the second explosion-proof through hole and the other first adapter shaft on the other side of the explosion-proof camera will not produce electric sparks. Therefore, the above-mentioned two sides can be closed by using non-explosion-proof cavities. Although non-explosion-proof cavities are still used, compared with using explosion-proof cavities for closure, the overall weight of the explosion-proof camera will be reduced, which is beneficial to meet the light weight requirement.

[0082] In a specific embodiment, the end of the mounting ear 14 is provided with an adapter through hole 141 for the first adapter shaft 21 to pass through, and the first adapter shaft 21 is rotatably mounted to the mounting ear 14 through a shaft sleeve assembly 142.

[0083] That is, referring to Figure 7 The adapter through hole can be provided at the end of the mounting ear, and the shaft sleeve assembly is mounted at the adapter through hole of the mounting ear. In this way, the pair of first adapter shafts can be rotatably mounted to the pair of mounting ears respectively.

[0084] In a specific embodiment, the first adapter shaft 21 on the same side as the cable 70 is provided in a hollow structure, and the cable 70 is inserted and mounted to the first adapter shaft 21 on the same side through a filler 71.

[0085] For the convenience of implementation, the first adapter shaft on one side of the cable can be provided in a hollow structure, so that the cable can extend into the second explosion-proof cavity inside the second shell. In order to meet the explosion-proof requirement, the cable can be inserted into the first adapter shaft through the filler.

[0086] Regarding the structure of the above-mentioned transmission assembly 80, in one possible embodiment, the transmission assembly 80 includes a first transmission gear 81, a second transmission gear 82 and a transmission member. The first transmission gear 81 is fixedly mounted to the end of the transmission shaft 13 extending from the first explosion-proof cavity 31, the second transmission gear 82 is fixed to the end of the first adapter shaft 21, and the transmission member is used for transmission connection with the first transmission gear 81 and the second transmission gear 82 respectively, so that the first transmission gear 81 drives the second transmission gear 82 to rotate through the transmission member.

[0087] That is, the first transmission gear is inserted into the end of the transmission shaft extending out of the first explosion-proof cavity, and then the second transmission gear is inserted into the end of the first adapter shaft on the same side, and a transmission member is arranged between the first transmission gear and the second transmission gear, so that the first transmission gear can drive the second transmission gear to rotate through the transmission member, that is, drive the second housing to rotate.

[0088] It should be understood that, for the convenience of transmission, the first transmission gear and the second transmission gear may be located in the same plane perpendicular to the first direction.

[0089] In a specific embodiment, the transmission member includes any one of a transmission belt and a transmission gear.

[0090] That is, it can be understood that, for the transmission between the first transmission gear and the second transmission gear, it can be realized by a transmission belt or a transmission gear, and the present embodiment does not limit this.

[0091] In a specific embodiment, the transmission member includes a first transmission belt 83; wherein the first transmission gear 81 and the second transmission gear 82 have equal radii and a transmission ratio of 1; the transmission assembly further includes a connecting rod 84, the length of the connecting rod 84 is consistent with the length from the center of the first transmission gear 81 to the center of the second transmission gear 82, and the two ends of the connecting rod 84 are respectively fixed to the eccentric positions on the surfaces of the first transmission gear 81 and the second transmission gear 82.

[0092] The present embodiment specifically uses a transmission belt to transmit between the first transmission gear and the second transmission gear, and compared with using a transmission gear for transmission, the transmission belt is lighter in weight, which can minimize the increase in the weight of the explosion-proof camera.

[0093] In addition, considering the possibility of tooth skipping between the first transmission belt and the two transmission gears, the present embodiment further provides a connecting rod between the two transmission gears, and it can be understood that this requires that on the one hand, the radii of the two transmission gears are equal and the transmission ratio is 1, and on the other hand, the two ends of the connecting rod should be respectively fixed to the eccentric positions on the surfaces of the two transmission gears, so that the connecting rod functions to limit the rotation of the two transmission gears and keep their rotation consistency.

[0094] Of course, in other embodiments, when using a transmission gear to transmit between the first transmission gear and the second transmission gear, since the transmission gears are not prone to tooth skipping, the connecting rod can not be provided at this time.

[0095] In a specific embodiment, the transmission assembly further includes a tensioning mechanism, and the tensioning mechanism includes a pair of fixed metal plates 85 arranged on both sides of the first transmission belt 83, and a tensioning wheel 86 is mounted on the fixed metal plate 85.

[0096] In view of the aging and loosening of the first transmission belt, the embodiment can further provide a tensioning mechanism beside the first transmission belt, please refer to Figure 8 The tensioning mechanism comprises a pair of fixed metal plates, which can be fixed on the fixed seat 88 of the mounting lug 14, and a tensioning wheel is installed on the fixed metal plate, the axial direction of the tensioning wheel is arranged in the first direction, and the two fixed metal plates can be connected by a spring 87. In this way, the fixed metal plate can be first pre-tightened on the fixed seat by screws, and then after the first transmission belt is installed, the relative position of the pair of fixed metal plates is adjusted to tension the first transmission belt, and then the screws are tightened.

[0097] Regarding the installation of the first motor 51, in one possible implementation, the first motor 51 is fixedly installed on the first explosion-proof cavity 31 through a motor mounting plate 52, and the motor mounting plate 52 is arranged perpendicular to the first direction X; wherein the first explosion-proof cavity 31 is provided with a speed reduction gear 53 beside the motor mounting plate 52, the motor shaft of the first motor 51 is in transmission connection with the speed reduction gear 53, and the end of the transmission shaft 13 inserted into the first explosion-proof cavity 31 is fixedly inserted into the speed reduction gear 53; the motor mounting plate 52 is fixedly installed with a first photoelectric detection module 54, which is used to detect the rotation of the speed reduction gear 53.

[0098] Specifically, the first motor can be fixedly installed through the motor mounting plate arranged perpendicular to the first direction, and after the first motor is installed on the motor mounting plate, the motor shaft of the first motor is arranged in the first direction, for example; then, the speed reduction gear is also fixed in the first explosion-proof cavity beside the motor mounting plate, and the rotation shaft of the speed reduction gear is arranged in the first direction; thereby, on the one hand, the motor shaft of the first motor can be in transmission connection with the speed reduction gear, and on the other hand, the end of the transmission shaft inserted into the first explosion-proof cavity can be directly fixedly inserted into the speed reduction gear, so that the first motor drives the transmission shaft to rotate through the speed reduction gear.

[0099] In order to detect and correct the rotation, the motor mounting plate can also be provided with a first photoelectric detection module, which can detect the rotation of the speed reduction gear. For example, the first photoelectric detection module can be an infrared sensor, and a detection protrusion is arranged in the circumferential direction of the speed reduction gear, and the infrared sensor can know that the speed reduction gear rotates one circle by detecting the detection protrusion, thereby correcting the rotation.

[0100] It can be understood that the first direction X is, for example, a horizontal direction, and the first motor drives the second shell to rotate around the first direction as the rotation axis direction, that is, to realize the pitch adjustment of the lens module. In order to further realize the horizontal rotation of the lens module, in one possible implementation, the mounting lug 14 extends along the second direction Y, so that the first shell 10 and the second shell 20 are arranged in an up-down manner along the second direction Y, and the second direction Y is perpendicular to the first direction X. The first shell 10 includes a first body 16 and a mounting top cover 17. The first body 16 has a first explosion-proof cavity 31. The mounting top cover 17 is connected to the first body 16 in a rotatable manner around the second direction Y as the rotation axis direction, and the mounting top cover 17 and the second shell 20 are separately arranged at opposite ends of the first body 16.

[0101] In the embodiment, the second direction is, for example, a vertical direction, and the mounting lug of the first shell extends downward along the vertical direction, that is, the second shell is located at the vertically lower end of the first shell.

[0102] The first shell includes a first body and a mounting top cover. Referring to Figure 5 and Figure 6 , the first body is, for example, a vertically placed column, and the inside of the first body forms the first explosion-proof cavity. The mounting top cover is located at the upper end of the first body, and the mounting top cover is connected to the first body in a rotatable manner around the second direction Y (that is, the vertical direction) as the rotation axis direction. It can be understood that, at this time, after the explosion-proof camera is fixedly installed through the mounting top cover, the horizontal rotation of the lower lens module can be realized by rotating the first body relative to the mounting top cover.

[0103] It can be understood that the rotatable connection between the mounting top cover and the first body should meet the requirements of the explosion-proof structure.

[0104] In one specific implementation, the mounting top cover 17 is provided with a second adapter shaft 171 extending into the first explosion-proof cavity 31. The second motor 61 is installed in the first explosion-proof cavity 31, and the second motor 61 is in transmission connection with the end of the second adapter shaft 171, so that the second motor 61 is used to drive the first body 16 to rotate around the second direction Y as the rotation axis direction relative to the mounting top cover 17.

[0105] The embodiment gives a specific structure for driving the first body to rotate.

[0106] That is, the top end of the first body can be provided with a third explosion-proof through hole. Then, the second adapter shaft of the mounting top cover extends into the inside of the first body through the third explosion-proof through hole, that is, into the first explosion-proof cavity. Then, the inside of the first body is fixedly installed with a second motor, and the second motor is in transmission connection with the end of the second adapter shaft.

[0107] It can be understood that at this time, the second motor can drive the mounting top cover to rotate relative to the first fuselage with the vertical direction as the rotation axis direction, and in actual use, since the mounting top cover is fixedly installed at the mounting position of the explosion-proof camera, at this time, the second motor can drive the first fuselage to rotate relative to the mounting top cover, that is, under the driving of the second motor, the first fuselage and the second motor rotate together relative to the mounting top cover with the vertical direction as the rotation axis direction, so that the first fuselage drives the second shell below to rotate with the vertical direction as the rotation axis direction, realizing the horizontal rotation of the lens module.

[0108] In a specific embodiment, the end of the second adapter shaft 171 is fixedly installed with a third transmission gear 62, and the motor shaft of the second motor 61 is in transmission connection with the third transmission gear 62.

[0109] Among them, the second motor is fixedly installed in the interior of the first fuselage, and the motor shaft of the second motor is arranged in the vertical direction, for example, and then the third transmission gear is fixedly installed at the end of the second adapter shaft, so that the motor shaft of the second motor can be conveniently in transmission connection with the third transmission gear, that is, in transmission connection with the second adapter shaft.

[0110] Specifically, the motor shaft of the second motor and the third transmission gear can be in transmission connection through a second transmission belt 63, for example.

[0111] In a specific embodiment, the main control module includes a main control power board 91, which is fixedly installed on the surface of the third transmission gear 62, and the second adapter shaft 171 is hollowly arranged to allow the power line 500 to pass through the second adapter shaft 171 from the outside and be connected to the main control power board 91.

[0112] The second adapter shaft of the embodiment is arranged in a hollow structure by taking advantage of the characteristic that the second adapter shaft does not rotate, and then the main control power board is fixedly installed on the surface of the third transmission gear at the end of the second adapter shaft, so it can be understood that the power line can pass through the hollow second adapter shaft and the third transmission gear from the outside and be connected to the main control power board to supply power to the explosion-proof camera.

[0113] That is, under the driving of the second motor, the first fuselage rotates relative to the mounting top cover, and the mounting top cover, the second adapter shaft, the third transmission gear and the main control power board do not rotate.

[0114] In an embodiment, the main control module includes a device mounting seat 92 fixedly mounted inside the first explosion-proof cavity 31; wherein, along the second direction Y, the device mounting seat 92 is provided with a rotatable slip ring 93 in the projection area of the main control power board 91, and the slip ring 93 is coaxially arranged with the second adapter shaft 171, so that the main control power board 91 is electrically connected to the fuselage device mounted on the device mounting seat 92 through the slip ring 93.

[0115] That is, in combination with the above description, the main control power board and the first fuselage will rotate relative to each other, at this time, in order to realize the electrical connection between the main control power board and other fuselage devices inside the first fuselage, a device mounting seat can be fixedly mounted inside the first fuselage, and the device mounting seat is provided with a rotatable slip ring in the projection area of the main control power board, that is, the slip ring is rotatably mounted on the device mounting seat with the vertical direction as the rotation axis direction, and the slip ring should be coaxially arranged with the second adapter shaft, so that it can be understood that when the first fuselage rotates relative to the main control power board, the device mounting seat will rotate with the first fuselage, and the slip ring can be electrically connected to the main control power board without rotating due to the relative rotation of the device mounting seat.

[0116] In addition, similar to the first photoelectric detection module described above, a second photoelectric detection module can also be fixedly mounted inside the first fuselage for detecting the rotation of the first fuselage; for example, the second photoelectric detection module can be fixedly mounted on the first fuselage through the horizontal photoelectric plate 64, the second photoelectric detection module can be an infrared sensor, and the detection block is arranged in the circumferential direction of the second adapter shaft or the third transmission gear, and the infrared sensor can know that the first fuselage has rotated a circle by detecting the detection block, thereby correcting the rotation.

[0117] It should be noted that the top end of the first fuselage can be closed, and the bottom end (i.e. the end facing the second shell) can be open, and the opening can be closed by the first end cover 18.

[0118] In a possible implementation, the second shell 20 includes a second fuselage 23 and a second end cover 24, and the second end cover 24 closes the second fuselage 23 to form a second explosion-proof cavity 32; wherein, the second end cover 24 is provided with a lens view window 26, and the lens module 22 is mounted inside the second fuselage 23 and arranged beside the lens view window 26.

[0119] That is, the front end of the second shell can be open, and the opening can be closed by the second end cover, so that the second explosion-proof cavity is formed inside the second shell.

[0120] Wherein, the second end cover can be provided with a lens view window, and the lens module is mounted inside the second fuselage and arranged beside the lens view window.

[0121] In other embodiments, the second end cover 24 can also be provided with a wiper module 100, a microphone module 200 and a light supplement module 300 to improve the functionality.

[0122] In addition, the second housing 20 further comprises a third end cover 25, which encloses the second body 23 to form a containing cavity 43, which is in communication with the second explosion-proof cavity 32, and the containing cavity 43 can be used to contain a loudspeaker module 400.

[0123] The above describes the basic principles of the present application in combination with specific embodiments, but it should be noted that the advantages, advantages, effects and the like mentioned in the present application are only examples and not limitations, and these advantages, advantages, effects and the like cannot be considered as the must-have of each embodiment of the present application. In addition, the above specific details disclosed are only for the purpose of example and for the purpose of understanding, and are not limited to the above specific details. The above specific details do not limit the present application to be necessarily implemented with the above specific details.

[0124] The block diagrams of the devices, apparatuses, equipment, systems involved in the present application are only illustrative examples and are not intended to require or imply the connection, arrangement, configuration shown in the block diagrams. As those skilled in the art will recognize, these devices, apparatuses, equipment, systems can be connected, arranged, configured in any manner. Words such as "include", "contain", "have" and the like are open-ended words, which mean "including but not limited to", and can be used interchangeably. The words "or" and "and" used herein mean the word "and / or", and can be used interchangeably unless the context clearly indicates otherwise. The word "such as" used herein means the phrase "such as but not limited to", and can be used interchangeably.

[0125] It should also be noted that in the devices, equipment and methods of the present application, each component or each step can be decomposed and / or recombined. These decompositions and / or recombinations should be considered as equivalent solutions of the present application.

[0126] The above description of the disclosed aspects is provided so that any person skilled in the art can make or use the present application. Various modifications to these aspects will be apparent to those skilled in the art, and the general principles defined herein can be applied to other aspects without departing from the scope of the present application. Therefore, the present application is not intended to be limited to the aspects shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

[0127] The above description has been given for the purpose of illustration and description. Furthermore, this description is not intended to limit the embodiments of the present application to the forms disclosed. Although a number of example aspects and embodiments have been discussed above, those skilled in the art will recognize certain variations, modifications, changes, additions and sub-combinations of the aspects and embodiments discussed above can be made without departing from the scope of the present application.

Claims

1. An explosion-proof video camera, characterized by, The explosion-proof camera comprises: a first housing with a first explosion-proof cavity and a second housing with a second explosion-proof cavity, a main control module and a first motor being installed in the first explosion-proof cavity, and a lens module being installed in the second explosion-proof cavity; the first housing is provided with a first explosion-proof through hole and a second explosion-proof through hole at two ends in a first direction, a rotatable transmission shaft being installed in the first explosion-proof through hole, the transmission shaft extending into the end of the first explosion-proof cavity and being in transmission connection with the first motor, and the second explosion-proof through hole being used for the cable extending out of the main control module to pass out; the second housing extends with a first adapter shaft at two ends in the first direction, and a pair of first adapter shafts are coaxially arranged; wherein, the pair of first adapter shafts are rotatably installed on the first housing through a pair of mounting ears extending from the first housing; and, the transmission shaft and the first adapter shaft on the same side are in transmission connection through a transmission assembly, so that the first motor is used to drive the second housing to rotate around the first direction as the rotation axis direction, and the cable passes into the second explosion-proof cavity from the first adapter shaft on the same side and is connected with the lens module, so that the lens module is controlled by the main control module.

2. The explosion-proof video camera of claim 1, wherein, the pair of mounting ears extend from the first explosion-proof through hole and the second explosion-proof through hole respectively, the first housing comprises a pair of side covers, and the side covers are used to cover the mounting ears, so that the pair of side covers and the pair of mounting ears are respectively butted and installed to form a first non-explosion-proof cavity and a second non-explosion-proof cavity; wherein, the first non-explosion-proof cavity is used to accommodate the transmission shaft, the first adapter shaft and the transmission assembly on the same side, and the second non-explosion-proof cavity is used to accommodate the second explosion-proof through hole, the first adapter shaft and the cable on the same side; wherein, the end of the mounting ear is provided with an adapter through hole for the first adapter shaft to pass through, and the first adapter shaft is rotatably installed on the mounting ear through a shaft sleeve assembly.

3. The explosion-proof video camera of claim 1, wherein, the transmission assembly comprises a first transmission gear, a second transmission gear and a transmission member; wherein, the first transmission gear is fixedly installed on the end of the transmission shaft extending out of the first explosion-proof cavity, the second transmission gear is fixed on the end of the first adapter shaft, and the transmission member is used to be in transmission connection with the first transmission gear and the second transmission gear respectively, so that the first transmission gear drives the second transmission gear to rotate through the transmission member.

4. The explosion-proof video camera of claim 3, wherein, the transmission member comprises any one of a transmission belt and a transmission gear.

5. The explosion-proof video camera of claim 3, wherein, the transmission member comprises a first transmission belt; wherein, the first transmission gear and the second transmission gear have equal radius and a transmission ratio of 1; the transmission assembly further comprises a connecting rod, the length of the connecting rod is consistent with the length from the center of the first transmission gear to the center of the second transmission gear, and the two ends of the connecting rod are fixedly installed on the eccentric positions on the surfaces of the first transmission gear and the second transmission gear respectively; the transmission assembly further comprises a tensioning mechanism, the tensioning mechanism comprises a pair of fixed metal sheets arranged on both sides of the first transmission belt, and a tensioning wheel is installed on the fixed metal sheet.

6. The explosion-proof video camera of claim 1, wherein, The first motor is fixedly installed on the first explosion-proof cavity through a motor mounting plate, and the motor mounting plate is perpendicular to the first direction; The first explosion-proof cavity is provided with a speed reduction gear next to the motor mounting plate, a motor shaft of the first motor is in transmission connection with the speed reduction gear, and an end of the transmission shaft inserted into the first explosion-proof cavity is fixedly connected with the speed reduction gear. The motor mounting plate is fixedly installed with a first photoelectric detection module, and the first photoelectric detection module is used for detecting the rotation of the speed reduction gear.

7. The explosion-proof video camera of claim 1, wherein, The mounting ears extend along a second direction, so that the first shell and the second shell are arranged in an up-down manner along the second direction, and the second direction is perpendicular to the first direction; The first shell includes a first body and a mounting top cover, the first body has the first explosion-proof cavity, the mounting top cover is in relative rotation connection with the first body with the second direction as the rotation axis direction, and the mounting top cover and the second shell are separately arranged at opposite ends of the first body.

8. The explosion-proof video camera of claim 7, wherein, The mounting top cover is provided with a second adapter shaft inserted into the first explosion-proof cavity, and the second adapter shaft extends along the second direction; The first explosion-proof cavity is installed with a second motor, an end of the second adapter shaft is in transmission connection with the second motor, so that the second motor is used for driving the first body to rotate relative to the mounting top cover with the second direction as the rotation axis direction.

9. The explosion-proof video camera of claim 8, wherein, An end of the second adapter shaft is fixedly installed with a third transmission gear, and a motor shaft of the second motor is in transmission connection with the third transmission gear; The main control module includes a main control power board, the main control power board is fixedly installed on a surface of the third transmission gear, and the second adapter shaft is hollow, so that a power line passes through the second adapter shaft from the outside and is connected to the main control power board; The main control module includes a device mounting seat, and the device mounting seat is fixedly installed in the first explosion-proof cavity; Along the second direction, the device mounting seat is provided with a rotatable slip ring in a projection area of the main control power board, the slip ring is coaxially arranged with the second adapter shaft, so that the main control power board is electrically connected to the body device installed on the device mounting seat through the slip ring.

10. The explosion-proof video camera of claim 1, wherein, The second shell includes a second body and a second end cover, and the second end cover closes the second body to form the second explosion-proof cavity; The second end cover is provided with a lens view window, the lens module is installed in the second body and is arranged next to the lens view window; The second end cover is provided with a windshield module, a microphone module and a light supplementing module; The second shell further includes a third end cover, the third end cover closes the second body to form a containing cavity, the containing cavity is in communication with the second explosion-proof cavity, and the containing cavity is used for containing a loudspeaker module.

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