Explosion-proof camera

Abstract

The present application discloses an explosion-proof camera. The explosion-proof camera comprises a first housing and a second housing; a first flameproof cavity and a second flameproof cavity are respectively formed in the two housings; in a first direction, a first flameproof through hole and a second flameproof through hole are respectively formed in two ends of the first housing, wherein a transmission shaft is mounted in the first flameproof through hole; first connecting shafts respectively extend at two ends of the second housing; the pair of first connecting shafts of the second housing are rotatably mounted on the first housing by means of a pair of mounting lugs of the first housing; then, on one hand, a first motor inside the first housing can drive the second housing to rotate by means of the transmission shaft and an external transmission assembly; and on the other hand, a cable extending out of a main control module inside the first housing sequentially passes through the second flameproof through hole and a first connecting shaft on the same side and thus is connected to a lens module inside the second housing. Compared with arranging all components of an explosion-proof camera in flameproof cavities, the volume of the flameproof cavities is reduced, thereby satisfying the lightweight requirement.

Description

Explosion-proof camera

[0001] The present application claims priority to the Chinese patent application No. 202410460144.9, filed on April 16, 2024, and entitled "Explosion-proof camera", the content of which is incorporated herein by reference in its entirety. TECHNICAL FIELD

[0002] The present application relates to the technical field of cameras, in particular to an explosion-proof camera. BACKGROUND

[0003] 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.

[0004] 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.

[0005] SUMMARY

[0006] 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 that the lightweight level of the explosion-proof camera is improved, thereby solving the above technical problems.

[0007] The present application provides an explosion-proof camera, which comprises:

[0008] 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 mounted in the first explosion-proof cavity, and the lens module is mounted in the second explosion-proof cavity;

[0009] 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 allowing the cable extending from the main control module to pass out;

[0010] 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;

[0011] One pair of the first adapter shafts is rotatably mounted to the first shell through a pair of mounting ears extending from the first shell;

[0012] 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 around the first direction as the rotation direction, and the cable enters 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.

[0013] The one or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages:

[0014] The explosion-proof camera provided in the embodiments of the present application includes a first shell and a second shell, and the two shells have a first explosion-proof cavity and a second explosion-proof cavity, respectively. The first explosion-proof cavity is used to mount a master control module, and the second explosion-proof cavity is used to mount a lens module. In the first direction, the first shell has a first explosion-proof through hole and a second explosion-proof through hole at two ends, respectively, and the first explosion-proof through hole is mounted with a transmission shaft. The second shell has a first adapter shaft extending at two ends, respectively, and a pair of first adapter shafts of the second shell are rotatably mounted to the first shell through a pair of mounting ears of the first shell. Then, on the 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 of the master control module inside the first shell can be connected to a lens module inside the second shell (i.e. in the second explosion-proof cavity) by passing through the second explosion-proof through hole and a first adapter shaft on the same side in sequence.

[0015] In other words, in view of the problem that the explosion-proof camera is relatively heavy, the embodiments of the present application seal the master control module and the lens module in two explosion-proof cavities which are independent of each other, respectively, and then set the transmission assembly and the cable which will not generate electric sparks outside the two explosion-proof cavities. Since the explosion-proof cavities only need to seal the master 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 explosion-proof camera in the explosion-proof cavities, the volume of the explosion-proof cavities is reduced, and the weight of the explosion-proof camera is greatly reduced, which meets the requirement of lightweight of the explosion-proof camera and solves the technical problem that the existing explosion-proof camera cannot meet the requirement of lightweight due to being relatively heavy. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the description of the embodiments of the present application will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creating laboriousness.

[0017] Fig. 1 is a schematic diagram of the overall structure of the explosion-proof camera according to the present application;

[0018] Fig. 2 is a schematic diagram of the structure of the explosion-proof camera according to the present application from another perspective;

[0019] Fig. 3 is a schematic diagram of the structure of the explosion-proof camera according to the present application from yet another perspective;

[0020] Fig. 4 is a schematic diagram of the structure of the explosion-proof camera according to the present application from still another perspective;

[0021] Fig. 5 is a schematic diagram of the cross-sectional structure of the explosion-proof camera according to the present application;

[0022] Fig. 6 is a schematic diagram of the cross-sectional structure of the explosion-proof camera according to the present application;

[0023] Fig. 7 is a schematic diagram of the structure of the installation of the first shell and the second shell according to the present application;

[0024] Fig. 8 is a schematic diagram of the structure of the transmission assembly according to the present application;

[0025] Fig. 9 is a schematic diagram of the structure of the interior of the first body according to the present application;

[0026] Fig. 10 is a schematic diagram of the structure of the second shell according to the present application;

[0027] Fig. 11 is a schematic diagram of the exploded structure of Fig. 10;

[0028] Fig. 12 is a partial enlarged view of the first explosion-proof through hole region in Fig. 5;

[0029] Fig. 13 is a partial enlarged view of the tensioning mechanism region in Fig. 8.

[0030] In the drawings:

[0031] 10 - first shell, 11 - first explosion-proof through hole, 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,

[0032] 141 - adapter through hole, 142 - shaft sleeve assembly,

[0033] 171 - second adapter shaft,

[0034] 20 - second shell, 21 - first adapter shaft, 22 - lens module, 23 - second body, 24 - second end cover, 25 - third end cover, 26 - lens window,

[0035] 31 - first explosion-proof cavity, 32 - second explosion-proof cavity,

[0036] 41 - first non-explosion-proof cavity, 42 - second non-explosion-proof cavity, 43 - accommodating cavity,

[0037] 51 - first motor, 52 - motor mounting plate, 53 - speed reduction gear, 54 - first photoelectric detection module,

[0038] 61 - second motor, 62 - third transmission gear, 63 - second transmission belt, 64 - horizontal photoelectric plate,

[0039] 70 - cable, 71 - filler,

[0040] 80 - transmission assembly, 81 - first transmission gear, 82 - second transmission gear, 83 - first transmission belt, 84 - connecting rod, 85 - fixed metal plate, 86 - tensioning wheel, 87 - spring, 88 - fixed seat,

[0041] 91 - main control power board, 92 - device mounting seat, 93 - slip ring,

[0042] 100 - wiper module, 200 - microphone module, 300 - light supplementing module, 400 - loudspeaker module, 500 - power cord,

[0043] X - first direction, Y - second direction. DETAILED DESCRIPTION

[0044] In order to better understand 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 a part of the embodiments of the present application, and not all embodiments of the present application. It should be understood that the present application is not limited to the example embodiments described herein.

[0045] Figs. 1-4 are structural schematic views of the explosion-proof camera from different perspectives, Figs. 5 and 6 are sectional views, and Fig. 12 is a partial enlarged view of Fig. 5. As shown in Figs. 1-6 and 12, the explosion-proof camera comprises a first shell 10 having a first explosion-proof cavity 31 and a second shell 20 having 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 11 and a second explosion-proof through hole 12 at two ends thereof along a first direction X. The first explosion-proof through hole 11 is provided with a rotatable transmission shaft 13, and the transmission shaft 13 is in transmission connection with the first motor 51 at an end thereof extending into the first explosion-proof cavity 31. The second explosion-proof through hole 12 is used for allowing a cable 70 extending from the main control module to pass out. The second shell 20 is provided with a first adapter shaft 21 extending from each end thereof along the first direction X, and the pair of first adapter shafts 21 are coaxially arranged. The first adapter shaft 21 is arranged on the second shell 20, for example, the first adapter shaft 21 can be integrally formed with the second shell 20, or can be fixedly mounted on the second shell 20.

[0046] The first adapter shafts 21 are rotatably mounted to the first housing 10 through a pair of mounting ears 14 extending from the first housing 10, and the transmission shaft 13 is in driving connection with the first adapter shaft 21 on the same side through the transmission assembly 80, so that the first motor 51 is used to drive the second housing 20 to rotate in the first direction X as the rotation direction, and the cable 70 passes into the second explosion-proof cavity 32 from the first adapter shaft 21 on the same side and is connected to the lens module 22, so that the lens module 22 is controlled by the master control module.

[0047] Overall, in order to meet the lightweight requirement of the explosion-proof camera, unlike the existing explosion-proof camera which puts all components into the explosion-proof cavity, the application uses two independent explosion-proof cavities to carry the master control module and the lens module 22 respectively, and then sets the transmission assembly 80 for driving the lens module 22 to rotate and the cable 70 connected to the lens module 22 outside the two explosion-proof cavities, so as to reduce the volume of the explosion-proof cavity and meet the lightweight requirement.

[0048] Specifically, regarding the first housing 10, the first housing 10 has a first explosion-proof cavity 31 for mounting the master control module and the first motor 51, and the first housing 10 is provided with a first explosion-proof through hole 11 and a second explosion-proof through hole 12 at both ends along the first direction (for example, a horizontal direction).

[0049] On the one hand, the first explosion-proof through hole 11 is provided with a transmission shaft 13 extending along the first direction, and the transmission shaft 13 is mounted to the first explosion-proof through hole 11, for example, through a bearing, so that the transmission shaft 13 can rotate relative to the first housing 10, and the end of the transmission shaft 13 extending into the first explosion-proof cavity 31 (or extending into the inside of the first housing 10) is in driving connection with the first motor 51, so that the first motor 51 can drive the transmission shaft 13 to rotate; on the other hand, the master control module in the first explosion-proof cavity 31 is connected with a cable 70 which can pass out of the second explosion-proof through hole 12, and it can be understood that the cable 70 can be used to connect to the lens module 22 of the second explosion-proof cavity 20.

[0050] Specifically, regarding the second housing 20, the second housing 20 extends with a first adapter shaft 21 at both ends along the first direction, and the pair of first adapter shafts 21 at both ends are coaxially arranged.

[0051] Regarding the connection of the first shell 10 and the second shell 20, on the one hand, the first shell 10 extends a pair of mounting ears 14 in the same direction at both ends in the first direction, so that when the second shell 20 is placed between the pair of mounting ears 14, the second shell 20 can be rotatably mounted on the pair of mounting ears 14, that is, rotatably mounted on the first shell 10 through a pair of first adapter shafts 21. Then, a transmission assembly 80 can be arranged between the transmission shaft 13 extending from the first shell 10 and the first adapter shaft 21 on the same side. It can be understood that in combination with the above-mentioned driving of the transmission shaft 13 by the first motor 51, the first motor 51 can further drive the second shell 20 to rotate through the transmission shaft 13 and the transmission assembly 80. The rotation is the rotation of the second shell 20 with the first direction as the rotation direction, so that the lens module 22 in the second shell 20 can capture different angles of view.

[0052] On the other hand, in combination with the above-mentioned cable 70 passing out of the second explosion-proof hole 12 of the first shell 10, the cable 70 passing out can further pass into the second explosion-proof cavity 32 through the first adapter shaft 21 on the same side, so as to be electrically connected with the lens module 22. It can be understood that in this way, the lens module 22 in the second explosion-proof cavity 32 can be controlled by the master control module in the first explosion-proof cavity 31.

[0053] It can be seen that the device that is easy to produce electric spark (such as the device included in the master control module and the lens module 22, respectively) is independently enclosed in the two explosion-proof cavities in the embodiment, and the mechanical transmission structure (i.e. the above-mentioned transmission assembly 80, etc.) that will not produce electric spark, the cable 70, etc. are excluded outside the explosion-proof cavity. Thus, compared with the scheme that all devices of the camera are placed in the explosion-proof cavity, the overall volume of the two explosion-proof cavities in the embodiment is smaller, which greatly reduces the weight of the explosion-proof camera. Under the premise of realizing the basic function of the explosion-proof camera, the light weight requirement of the explosion-proof camera is met.

[0054] The embodiment of the present application provides a kind of explosion-proof camera, the explosion-proof camera includes first shell 10 and second shell 20, two shells have first explosion-proof cavity 31 and second explosion-proof cavity 32 respectively, first explosion-proof cavity 31 is used to install master control module, second explosion-proof cavity 32 is used to install lens module 22;Wherein, along first direction, the two ends of first shell 10 are equipped with first explosion-proof through hole 11 and second explosion-proof through hole 12 respectively, first explosion-proof through hole 11 is equipped with transmission shaft 13;The two ends of second shell 20 respectively extend with first adapter shaft 21, and the pair of first adapter shaft 21 of second shell 20 is rotatably installed in first shell 10 by the pair of mounting lug 14 of first shell 10;Then, on the one hand, the first motor 51 in the inside of first shell 10 (i.e. in first explosion-proof cavity 31) can drive second shell 20 to rotate by transmission shaft 13 and external transmission assembly 80;On the other hand, the cable 70 of master control module in the inside of first shell 10 is sequentially connected to lens module 22 in the inside of second shell 20 (i.e. in second explosion-proof cavity 32) by passing through second explosion-proof through hole 12 and same side one first adapter shaft 21.

[0055] In other words, for the problem that explosion-proof camera is heavy, the embodiment is closed master control module and lens module 22 by two explosion-proof cavities independent of each other respectively, then, transmission assembly 80 and cable 70 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 22, and transmission assembly 80 and cable 70 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, 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.

[0056] Regarding the packaging of the above-mentioned transmission assembly 80 and cable 70, in one possible implementation, the pair of mounting lugs 14 respectively extend from the first explosion-proof through hole 11 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 the first non-explosion-proof cavity 41 and the 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.

[0057] Please combine with Figure 5, i.e. the transmission assembly 80 and the cable 70 on both sides of the explosion-proof camera can be respectively closed by the non-explosion-proof cavity.

[0058] The mounting ear 14 is extended from the area of the two explosion-proof through holes of the first shell 10, and a receiving cavity is arranged in the mounting ear 14, which is in communication with the explosion-proof through hole on the same side. The mounting ear 14 can be closed by the side cover 15. It can be understood that the first non-explosion-proof cavity 41 and the second non-explosion-proof cavity 42 can be formed by the abutment and installation of the pair of side covers 15 and the pair of mounting ears 14, respectively. For the first non-explosion-proof cavity 41, the transmission shaft 13, the transmission assembly 80 and one of the first adapter shafts 21 of the second shell 20 of the first shell 10 should be closed. For the second non-explosion-proof cavity 42, the second explosion-proof through hole 12, the cable 70 and the other first adapter shaft 21 of the second shell 20 of the first shell 10 should be closed.

[0059] It can be seen that, on the one hand, the mechanical transmission connection between the transmission shaft 13, the transmission assembly 80 and one of the first adapter shafts 21 on one side of the explosion-proof camera will not produce electric sparks, and on the other hand, the cable 70 connecting the second explosion-proof through hole 12 and the other first adapter shaft 21 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.

[0060] In a specific embodiment, an adapter through hole 141 is arranged at the end of the mounting ear 14 for the first adapter shaft 21 to pass through, and the first adapter shaft 21 is rotatably installed in the mounting ear 14 through a shaft sleeve assembly 142.

[0061] That is, referring to FIG. 7, the adapter through hole 141 can be arranged at the end of the mounting ear 14, and the shaft sleeve assembly 142 is installed at the adapter through hole 141 of the mounting ear 14. In this way, the pair of first adapter shafts 21 can be rotatably installed in the pair of mounting ears 14, respectively.

[0062] In a specific embodiment, the first adapter shaft 21 on the same side as the cable 70 is hollow, and the cable 70 is inserted and installed in the first adapter shaft 21 on the same side through a stuffing box 71. The stuffing box 71 is sealed by silicone glue, and a stopper explosion-proof surface is designed on the side wall of the stuffing box 71, and a sealing groove is designed on the end face. The stuffing box 71 is sealed with the shaft sleeve assembly 142 through an O-ring, which can meet the IPX8 waterproof performance.

[0063] For convenience, the first adapter shaft 21 on one side of the cable 70 can be provided as a hollow structure, so that the cable 70 can extend into the second explosion-proof cavity 32 inside the second shell 20. In order to meet the explosion-proof requirement, the cable 70 can be inserted into the first adapter shaft 21 through the stuffing box 71.

[0064] With regard to the structure of the transmission assembly 80, in one possible implementation, the transmission assembly 80 comprises a first transmission gear 81, a second transmission gear 82 and a transmission member; the first transmission gear 81 is fixedly installed at the end of the transmission shaft 13 extending out of the first explosion-proof cavity 31 through the first explosion-proof through hole 11, the second transmission gear 82 is fixed at the end of the first adapter shaft 21, and the transmission member is used to be in 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.

[0065] That is, the first transmission gear 81 can be inserted at the end of the transmission shaft 13 extending out of the first explosion-proof cavity 31 through the first explosion-proof through hole 11, then the second transmission gear 82 is inserted at the end of the first adapter shaft 21 on the same side, and the transmission member is arranged between the first transmission gear 81 and the second transmission gear 82, so that the first transmission gear 81 can drive the second transmission gear 82 to rotate through the transmission member, that is, to drive the second housing 20 to rotate.

[0066] It should be understood that, for the convenience of transmission, the first transmission gear 81 and the second transmission gear 82 can be located in the same plane perpendicular to the first direction.

[0067] In one specific implementation, the transmission member comprises any one of a transmission belt and a transmission gear.

[0068] That is, it can be understood that, with regard to the transmission between the first transmission gear 81 and the second transmission gear 82, it can be realized by a transmission belt or a transmission gear, and the present embodiment does not limit this.

[0069] In one specific implementation, the transmission member comprises a first transmission belt 83; the first transmission gear 81 and the second transmission gear 82 have equal radii and a transmission ratio of 1; the transmission assembly 80 further comprises 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 fixed to the eccentric positions on the surfaces of the first transmission gear 81 and the second transmission gear 82 respectively.

[0070] The present embodiment specifically uses a transmission belt to transmit between the first transmission gear 81 and the second transmission gear 82, and compared with using a transmission gear for transmission, the transmission belt has a lighter weight, which can try to minimize the weight increase of the explosion-proof camera.

[0071] In addition, in view of the possibility of tooth skipping between the first transmission belt 83 and the two transmission gears, the embodiment further provides a connecting rod 84 between the two transmission gears. It can be understood that this requires that the radii of the two transmission gears be equal and the transmission ratio be 1, and that the two ends of the connecting rod 84 be fixed to eccentric positions on the surfaces of the two transmission gears. In this way, the connecting rod 84 functions to limit the rotation of the two transmission gears and keep them consistent in rotation.

[0072] Of course, in other embodiments, when a transmission gear is used to transmit between the first transmission gear 81 and the second transmission gear 82, tooth skipping between the transmission gears is not likely to occur, and in this case, the connecting rod 84 need not be provided.

[0073] In a specific embodiment, the transmission assembly 80 further comprises a tensioning mechanism, which comprises a pair of fixed metal plates 85 provided on both sides of the first transmission belt 83, and a tensioning wheel 86 mounted on the fixed metal plates 85.

[0074] In view of the possibility of aging and loosening of the first transmission belt 83, the embodiment further provides a tensioning mechanism beside the first transmission belt 83. Referring to FIGS. 8 and 13, the tensioning mechanism comprises a pair of fixed metal plates 85, which can be fixed to a fixed seat 88 of the mounting lug 14, for example. Then, a tensioning wheel 86 is mounted on the fixed metal plates 85, the axial direction of the tensioning wheel 86 is arranged in the first direction (i.e., the axis of the tensioning wheel 86 is parallel to the axis of the first transmission gear 81 and the axis of the second transmission gear 82), and the two fixed metal plates 85 can be connected by a spring 87. In this way, the fixed metal plates 85 can be first pre-tightened to the fixed seat 88 using screws, and then, after the first transmission belt 83 is installed, the relative positions of the pair of fixed metal plates 85 are adjusted to tension the first transmission belt 83, and then the screws are tightened.

[0075] Regarding the installation of the first motor 51, in one possible embodiment, referring to FIG. 9, 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. The first explosion-proof cavity 31 is provided with a reduction gear 53 beside the motor mounting plate 52, the motor shaft of the first motor 51 is in transmission connection with the reduction gear 53, and the end of the transmission shaft 13 extending into the first explosion-proof cavity 31 is fixedly inserted into the 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 reduction gear 53.

[0076] Specifically, the first motor 51 can be fixedly installed on the motor mounting plate 52 arranged perpendicularly to the first direction, and the motor shaft of the first motor 51 is arranged along the first direction after the first motor 51 is installed on the motor mounting plate 52. Then, the reduction gear 53 is fixedly arranged beside the motor mounting plate 52 in the first explosion-proof cavity 31, and the rotating shaft of the reduction gear 53 is arranged along the first direction. In this way, on the one hand, the motor shaft of the first motor 51 can be in driving connection with the reduction gear 53, and on the other hand, the end of the transmission shaft 13 extending into the first explosion-proof cavity 31 can be directly fixedly inserted into the reduction gear 53. In this way, the first motor 51 drives the transmission shaft 13 to rotate through the reduction gear 53.

[0077] In other possible embodiments, the first motor 51 can also be installed on the motor mounting plate 52 perpendicularly to the horizontal direction, and in this case, the motor shaft of the first motor 51 is perpendicular to the horizontal direction. It is also possible to arrange a bevel gear between the first motor 51 and the transmission shaft 13 to change the power transmission direction, so as to transmit the power output by the motor to the transmission shaft 13.

[0078] In order to detect and correct the rotation, the motor mounting plate 52 can further be provided with a first photoelectric detection module 54. The first photoelectric detection module 54 can detect the rotation of the reduction gear 53. For example, the first photoelectric detection module 54 can be an infrared sensor, and a detection protrusion is arranged in the circumferential direction of the reduction gear 53. The infrared sensor can know that the reduction gear 53 rotates one circle by detecting the detection protrusion, so as to correct the rotation.

[0079] It can be understood that the first direction X can be a horizontal direction, and the first motor 51 drives the second housing 20 to rotate around the first direction as the rotation axis direction, that is, to realize the pitch adjustment of the lens module 22. In order to further realize the horizontal rotation of the lens module 22, in one possible embodiment, the mounting lug 14 extends along the second direction Y, so that the first housing 10 and the second housing 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. As shown in FIG. 7, the first housing 10 includes a first body 16 and a mounting top cover 17. The first body 16 has the first explosion-proof cavity 31, and the mounting top cover 17 is connected to the first body 16 in a rotationally connected manner around the second direction Y as the rotation axis direction, and the mounting top cover 17 and the second housing 20 are separately arranged at opposite ends of the first body 16.

[0080] In this embodiment, the second direction is a vertical direction, and the mounting lug 14 of the first housing 10 extends downward along the vertical direction, that is, the second housing 20 is located at the vertically lower end of the first housing 10. The part of the second housing 20 is located between the mounting lugs 14 of the first housing 10.

[0081] The first shell 10 includes a first body 16 and a mounting top cover 17, as shown in FIGS. 5 and 6. The first body 16 is, for example, a column placed vertically. The inside of the first body 16 forms the first explosion-proof cavity 31. The mounting top cover 17 is located at the upper end of the first body 16. The mounting top cover 17 is connected to the first body 16 in a pivotable manner with the second direction Y (i.e., the vertical direction) as the pivot direction. It can be understood that, when the explosion-proof camera is fixedly installed through the mounting top cover 17, the first body 16 can be rotated relative to the mounting top cover 17 to realize the horizontal rotation of the lower lens module 22.

[0082] It can be understood that the relative rotation between the mounting top cover 17 and the first body 16 should meet the requirements of the explosion-proof structure.

[0083] In a specific embodiment, as shown in FIG. 6, 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. The second motor 61 is in driving 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 relative to the mounting top cover 17 with the second direction Y as the pivot direction.

[0084] The embodiment provides a specific structure for driving the rotation of the first body 16.

[0085] That is, the top end of the first body 16 is provided with a third explosion-proof through hole. The second adapter shaft 171 of the mounting top cover 17 extends into the inside of the first body 16 through the third explosion-proof through hole, that is, into the first explosion-proof cavity 31. The second motor 61 is fixedly installed in the inside of the first body 16. The second motor 61 is in driving connection with the end of the second adapter shaft 171.

[0086] It can be understood that, relative to the first body 16 and the second motor 61 fixed to the first body 16, the second motor 61 can drive the mounting top cover 17 to rotate relative to the first body 16 with the vertical direction as the pivot direction. In actual use, since the mounting top cover 17 is fixedly installed at the mounting position of the explosion-proof camera, the second motor 61 can drive the first body 16 to rotate relative to the mounting top cover 17. That is, under the driving of the second motor 61, the first body 16 and the second motor 61 rotate together relative to the mounting top cover 17 with the vertical direction as the pivot direction. Thus, the first body 16 drives the second shell 20 below to rotate with the vertical direction as the pivot direction, realizing the horizontal rotation of the lens module 22.

[0087] In a specific embodiment, the end of the second adapter shaft 171 is fixedly installed with a third driving gear 62. The motor shaft of the second motor 61 is in driving connection with the third driving gear 62.

[0088] The second motor 61 is fixedly installed inside the first fuselage 16, and a motor shaft of the second motor 61 is arranged in a vertical direction, for example. Then, the third transmission gear 62 is fixedly installed at an end of the second adapter shaft 171, so that the motor shaft of the second motor 61 is conveniently connected in transmission with the third transmission gear 62, that is, connected in transmission with the second adapter shaft 171.

[0089] Specifically, the motor shaft of the second motor 61 and the third transmission gear 62 are connected in transmission through the second transmission belt 63, for example.

[0090] In some possible implementation manners, the second motor 61 can also be arranged in a horizontal direction, that is, arranged in the horizontal direction. At this time, the motor shaft of the second motor 61 and the second adapter shaft 171 can be connected in transmission through bevel gears, which is also possible.

[0091] In an embodiment, referring to FIG. 6, the main control module includes a main control power board 91, which is fixedly installed on a surface of the third transmission gear 62. In addition, the second adapter shaft 171 is hollow, so that the power line 500 passes through the second adapter shaft 171 from the outside and is connected to the main control power board 91.

[0092] In this embodiment, the second adapter shaft 171 is not rotated, and is arranged in a hollow structure. Then, the main control power board 91 is fixedly installed on a surface of the third transmission gear 62 at an end of the second adapter shaft 171. As can be understood, the power line 500 passes through the hollow second adapter shaft 171 and the third transmission gear 62 from the outside and is connected to the main control power board 91, to supply power to the explosion-proof camera.

[0093] That is, under the drive of the second motor 61, the first fuselage 16 rotates relative to the mounting top cover 17, and the mounting top cover 17, the second adapter shaft 171, the third transmission gear 62, and the main control power board 91 do not rotate.

[0094] In an embodiment, referring to FIG. 6, the main control module further includes a device mounting seat 92, which is fixedly installed inside the first explosion-proof cavity 31. In the projection area of the main control power board 91 in the second direction Y, the device mounting seat 92 is provided with a rotatable slip ring 93, which 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.

[0095] That is, in combination with the above description, the main control power board 91 and the first machine body 16 will be relatively rotated, at this time, in order to realize the electrical connection between the main control power board 91 and other machine body devices inside the first machine body 16, a device mounting seat 92 can be fixedly installed inside the first machine body 16, and the device mounting seat 92 is provided with a rotatable slip ring 93 in the projection area of the main control power board 91, that is, the slip ring 93 is rotatably installed on the device mounting seat 92 with the vertical direction as the rotation axis direction, and the slip ring 93 should be coaxially arranged with the second adapter shaft 171, so it can be understood that when the first machine body 16 rotates relative to the main control power board 91, the device mounting seat 92 will rotate with the first machine body 16, and the slip ring 93 can realize electrical plug-in with the main control power board 91 without rotating.

[0096] In addition, similar to the above-mentioned first photoelectric detection module 54, a second photoelectric detection module can also be fixedly installed inside the first machine body 16 for detecting the rotation of the first machine body 16; for example, referring to FIG. 9, the second photoelectric detection module can be fixedly installed on the first machine body 16 through the horizontal photoelectric plate 64, the second photoelectric detection module can be an infrared sensor, and a detection bump is arranged in the circumferential direction of the second adapter shaft 171 or the third transmission gear 62, and the infrared sensor can know that the first machine body 16 rotates one circle by detecting the detection bump, thereby correcting the rotation.

[0097] It should be noted that, referring to FIG. 9, the top end of the first machine body 16 can be closed, and the bottom end (i.e., the end facing the second shell 20) can be open, and the opening can be closed by the first end cover 18.

[0098] In one possible implementation, referring to FIGS. 10 and 11, the second shell 20 includes a second machine body 23 and a second end cover 24, and the second end cover 24 closes the second machine body 23 to form a second explosion-proof cavity 32; wherein the second end cover 24 is provided with a lens window 26, and the lens module 22 is installed inside the second machine body 23 and is arranged beside the lens window 26.

[0099] That is, the front end of the second shell 20 can be open, and the opening can be closed by the second end cover 24, so that the second explosion-proof cavity 32 is formed inside the second shell 20.

[0100] Wherein, the second end cover 24 can be provided with a lens window 26, and the lens module 22 is installed inside the second machine body 23 and is arranged beside the lens window 26. In this way, the lens module 22 can collect light rays through the lens window 26.

[0101] In other embodiments, referring to FIGS. 4 and 10, the second end cover 24 can also be provided with a wiper module 100, a microphone module 200, and a light supplementing module 300 to improve functionality.

[0102] In addition, the second shell 20 further comprises a third end cover 25, the third end cover 25 closes the second body 23 to form a containing cavity 43, the containing cavity 43 communicates with the second explosion-proof cavity 32, and the containing cavity 43 can be used for containing the loudspeaker module 400. Wherein, the second end cover 24 and the third end cover 25 respectively close different positions of the surface of the second body 23 to respectively form the second explosion-proof cavity 32 and the containing cavity 43.

[0103] The above describes the basic principles of the present application in combination with specific embodiments. However, 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 understanding, and are not limited to the above specific details. The above details do not limit the present application to be necessarily implemented with the above specific details.

[0104] 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, mean "include 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.

[0105] 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.

[0106] 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 intended to be accorded the widest scope consistent with the principles and novel features disclosed herein.

[0107] 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 (10) with a first explosion-proof cavity (31) and a second housing (20) with a second explosion-proof cavity (32), a main control module and a first motor (51) being installed in the first explosion-proof cavity (31), and a lens module (22) being installed in the second explosion-proof cavity (32); the first housing (10) is provided with a first explosion-proof through hole (11) and a second explosion-proof through hole (12) at two ends in a first direction, the first explosion-proof through hole (11) is provided with a rotatable transmission shaft (13), the transmission shaft (13) is in transmission connection with the first motor (51) at an end of the first explosion-proof cavity (31), and the second explosion-proof through hole (12) is used for allowing a cable (70) extending from the main control module to pass out; the second housing (20) is provided with a first adapter shaft (21) at each end in the first direction, and a pair of first adapter shafts (21) are coaxially arranged; wherein the pair of first adapter shafts (21) are rotatably installed on the first housing (10) through a pair of mounting ears (14) extending from the first housing (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 for driving the second housing (20) to rotate around the first direction as the rotation 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.

2. The explosion-proof video camera of claim 1, wherein, the mounting ears (14) extend from the first explosion-proof through hole (11) and the second explosion-proof through hole (12) respectively, the first housing (10) comprises a pair of side covers (15), and the side covers (15) are used for covering the mounting ears (14), so that the pair of side covers (15) and the pair of mounting ears (14) are respectively installed in abutment 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 for accommodating 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 for accommodating the second explosion-proof through hole (12), the first adapter shaft (21) and the cable (70) on the same side; wherein an adapter through hole (141) for allowing the first adapter shaft (21) to pass through is formed at an end of the mounting ear (14), and the first adapter shaft (21) is rotatably installed on the mounting ear (14) through a shaft sleeve assembly (142).

3. The explosion-proof video camera of claim 1, wherein, the transmission assembly (80) comprises a first transmission gear (81), a second transmission gear (82) and a transmission member; The first transmission gear (81) is fixedly installed on the end of the transmission shaft (13) extending from the first explosion-proof cavity (31), the second transmission gear (82) is fixed on 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.

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

5. The explosion-proof video camera of claim 3, wherein, The transmission member includes a first transmission belt (83); The first transmission gear (81) and the second transmission gear (82) have equal radius and a transmission ratio of 1. The transmission assembly (80) 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 fixed on the eccentric positions on the surfaces of the first transmission gear (81) and the second transmission gear (82) respectively. The transmission assembly (80) further includes a tensioning mechanism, the tensioning mechanism includes a pair of fixed metal plates (85) arranged on the two sides of the first transmission belt (83), and a tensioning wheel (86) is installed on the fixed metal plate (85).

6. The explosion-proof video camera of claim 1, wherein, 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 perpendicular to the first direction; 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) extending 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), and the first photoelectric detection module (54) is used for detecting the rotation of the speed reduction gear (53).

7. The explosion-proof video camera of claim 1, wherein, The mounting lug (14) extends along a second direction, so that the first shell (10) and the second shell (20) are arranged in an up-down manner along the second direction, and the second direction is perpendicular to the first direction; The first shell (10) includes a first fuselage (16) and a mounting top cover (17), the first fuselage (16) has the first explosion-proof cavity (31), the mounting top cover (17) is connected in a relative rotating manner with the first fuselage (16) with the second direction as the rotation axis direction, and the mounting top cover (17) and the second shell (20) are separately arranged at the opposite ends of the first fuselage (16).

8. The explosion-proof video camera of claim 7, wherein, The mounting top cover (17) is provided with a second adapter shaft (171) extending into the first explosion-proof cavity (31); The first explosion-proof cavity (31) is internally provided with a second motor (61), 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 for driving the first fuselage (16) to rotate relative to the mounting top cover (17) with the second direction as the rotation direction.

9. The explosion-proof video camera of claim 8, wherein, The end of the second adapter shaft (171) is fixedly provided 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). The main control module comprises a main control power board (91), the main control power board (91) is fixedly installed on the surface of the third transmission gear (62), and the second adapter shaft (171) is hollowly arranged, so that the power line (500) passes through the second adapter shaft (171) from the outside and is connected to the main control power board (91). The main control module comprises a device mounting seat (92), and the device mounting seat (92) is fixedly installed in the first explosion-proof cavity (31). Wherein, along the second direction, the device mounting seat (92) is provided with a rotatable slip ring (93) in the projection area of the main control power board (91), the slip ring (93) is coaxially arranged with the second adapter shaft (171), so that the main control power board (91) is electrically connected with the fuselage device installed on the device mounting seat (92) through the slip ring (93).

10. The explosion-proof video camera of claim 1, wherein, The second shell (20) comprises a second fuselage (23) and a second end cover (24), and the second end cover (24) closes the second fuselage (23) to form the second explosion-proof cavity (32); Wherein, the second end cover (24) is provided with a lens window (26), and the lens module (22) Is installed inside the second fuselage (23) and is arranged beside the lens window (26); The second end cover (24) is provided with a wiper module (100), a microphone module (200) and a light supplementing module (300); The second shell (20) further comprises a third end cover (25), the third end cover (25) closes the second fuselage (23) to form a containing cavity (43), the containing cavity (43) is in communication with the second explosion-proof cavity (32), and the containing cavity (43) is used for containing a loudspeaker module (400).

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