Explosion-proof camera device

Abstract

The application provides an explosion-proof camera device, which comprises a first shell assembly, a support assembly, a second shell assembly, a first driver, a second driver and a camera module; the support assembly is rotationally connected with the first shell assembly, and the second shell assembly is rotationally connected with the support assembly; the first shell assembly is provided with a first accommodating cavity, the first driver is arranged in the first accommodating cavity, and the first driver is used for driving the support assembly to rotate relative to the first shell assembly; the second shell assembly is provided with a second accommodating cavity, the second driver is at least partially located in the second accommodating cavity, the second driver comprises a second driving body and a second output shaft, the second driving body is connected with the second shell assembly, the axis of the second output shaft is collinear with a second axis, the second output shaft is connected with the support assembly, so as to drive the second shell assembly to rotate relative to the support assembly; the camera module is arranged in the second accommodating cavity, and a part opposite to a light inlet part of the camera module of the second shell assembly is embedded with a first light-transmitting part.

Description

Technical Field

[0001] This utility model relates to the field of security equipment technology, and in particular to an explosion-proof camera device. Background Technology

[0002] Some locations with flammable or explosive gases or dust require monitoring using explosion-proof video surveillance devices. Examples include oil refineries, chemical refineries, gas stations, and pipeline valve stations. It should be noted that explosion protection refers to the ability to withstand the impact and heat of an explosion without damage and continue to function normally.

[0003] In related technologies, the actuators used to drive the camera module to rotate in explosion-proof camera devices are all housed in the same housing, which results in a complex transmission mechanism. Utility Model Content

[0004] This utility model provides an explosion-proof camera device to solve the problem of how to improve the complex transmission mechanism of the explosion-proof camera device.

[0005] To solve the above-mentioned technical problems, this utility model is implemented as follows: The explosion-proof camera device provided in this embodiment includes: a first housing assembly, a bracket assembly, a second housing assembly, a first driver, a second driver, and a camera module; the bracket assembly is rotatably connected to the first housing assembly about a first axis, and the second housing assembly is rotatably connected to the bracket assembly about a second axis, wherein the second axis is not parallel to the first axis; the first housing assembly has a first receiving cavity, and the first driver is disposed in the first receiving cavity, and the first driver is used to drive the bracket assembly to rotate relative to the first housing assembly; the second housing assembly has a second receiving cavity, and the second driver is at least partially located in the second receiving cavity, the second driver includes a second driving body and a second output shaft, the second driving body is connected to the second housing assembly, the axis of the second output shaft is collinear with the second axis, and the second output shaft is connected to the bracket assembly to drive the second housing assembly to rotate relative to the bracket assembly; the camera module is disposed in the second receiving cavity, and a first light-transmitting element is embedded in the portion of the second housing assembly opposite to the light-inlet portion of the camera module.

[0006] In some embodiments, the bracket assembly includes a bracket body, the bracket body includes a base and a first rotating shaft portion connected to each other, the first rotating shaft portion extends along a first axis, the first housing assembly is provided with a first mounting hole communicating with a first accommodating cavity, a portion of the first rotating shaft portion passes through the first mounting hole, and a first driver is drivenly connected to one end of the first rotating shaft portion that extends into the first accommodating cavity.

[0007] In some embodiments, the explosion-proof camera device further includes a transmission mechanism, which includes a first synchronous pulley, a second synchronous pulley, and a synchronous belt. The first driver includes a first drive body and a first output shaft. The first drive body is connected to the first housing assembly, the first output shaft is connected to the first synchronous pulley, the first rotating shaft is connected to the second synchronous pulley, and the synchronous belt is wound around the first synchronous pulley and the second synchronous pulley respectively.

[0008] In some embodiments, the explosion-proof camera device further includes a first rotary encoder; the first rotary encoder includes a first encoder body and a first rotating part, one of the first encoder body and the first rotating part being connected to a first rotating shaft part, and the other being connected to a first housing assembly.

[0009] In some embodiments, the bracket body further includes a side extension and a second pivot portion connected to it. The side extension protrudes from the edge portion of the base relative to the base, and the second pivot portion extends along a second axis. The second housing assembly is provided with a second mounting hole communicating with the second accommodating cavity, and a portion of the second pivot portion passes through the second mounting hole.

[0010] In some embodiments, the bracket assembly further includes a side mount, which is spaced apart from the side extension and is detachably connected to the base; a second output shaft is connected to the side mount.

[0011] In some embodiments, the explosion-proof camera device further includes a power board, a motherboard, a first cable, and a second cable; the power board is disposed in a first accommodating cavity, and the motherboard is disposed in a second accommodating cavity; the first rotating shaft portion is provided with a first through hole extending along a first axis, and a slip ring is provided in the first through hole, the slip ring including a first electrical connection portion and a second electrical connection portion, and the power board is connected to the first electrical connection portion via the first cable; the second rotating shaft portion is provided with a second through hole extending along a second axis, a portion of the second cable passes through the second through hole, one end of the second cable is connected to the second electrical connection portion, and the other end is connected to the motherboard.

[0012] In some embodiments, the bracket assembly further includes a first cover, the bracket body has a first wire-passing cavity, the first cover and the side extension form a second wire-passing cavity, the bracket body has a third through hole communicating with the first wire-passing cavity and the second wire-passing cavity, the first cover covers the portion of the bracket body with the second through hole and the third through hole, a portion of the second cable passes through the second through hole, and a portion of the second cable passes through the third through hole.

[0013] In some embodiments, the explosion-proof camera device further includes a second rotary encoder, which includes a second encoder body and a second rotating part, one of which is connected to a second rotating shaft and the other is connected to a second housing assembly.

[0014] In some embodiments, the explosion-proof camera device further includes a wiper and a third driver, the third driver being disposed in the second receiving cavity, the wiper being disposed in the second housing assembly, the third driver being driven connected to the wiper, wherein the wiping area of ​​the wiper covers the outer surface of the first light-transmitting element.

[0015] The above-mentioned technical solutions adopted in the embodiments of this utility model can achieve the following beneficial effects: In an embodiment of this utility model, a first driver for driving the bracket assembly to rotate relative to the first housing assembly is disposed in a first receiving cavity of the first housing assembly, and a second driver for driving the second housing assembly to rotate relative to the bracket assembly is at least partially located in a second receiving cavity of the second housing assembly. In this way, the first driver and the second driver are disposed in two different receiving cavities, which avoids the problem in related technologies where the first driver and the second driver are disposed in the same receiving cavity, resulting in an excessively large housing size forming the receiving cavity, and thus making the structure of the explosion-proof camera device not compact enough.

[0016] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or related technologies, the drawings used in the description of the embodiments or related technologies will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 A schematic diagram of an explosion-proof camera device provided for an embodiment of this utility model; Figure 2 An exploded view of an explosion-proof camera device provided in an embodiment of this utility model; Figure 3 for Figure 1 The diagram shown illustrates the explosion-proof camera device concealing the top cover of the first housing assembly; Figure 4 for Figure 3 The image shows a cross-sectional view of the explosion-proof camera device along the line BB. Figure 5 for Figure 1 The diagram shown in the image illustrates the second and third covers of the support assembly concealing the explosion-proof camera device. Figure 6 A half-sectional view of a bracket body, a slip ring, and a second cable provided for an embodiment of this utility model; Figure 7 for Figure 1 The image shows a cross-sectional view of the explosion-proof camera device along line AA. Figure 8 An exploded view of a second housing assembly and a second rotary encoder provided for an embodiment of this utility model.

[0019] Explanation of reference numerals in the attached figures: 1-Explosion-proof camera device; 1a-First axis; 1b-Second axis; 100 - First housing assembly; 110 - First receiving cavity; 120 - First mounting hole; 200-Bracket assembly; 210-Bracket body; 211-Base; 212-First pivot; 2121-First through hole; 213-Side extension; 214-Second pivot; 2141-Second through hole; 215-First threading cavity; 216-Third through hole; 220-Side mounting; 230-First cover; 240-Second threading cavity; 250-Second cover; 260-Third cover; 300 - Second housing assembly; 310 - Second accommodating cavity; 320 - First light-transmitting element; 330 - Second mounting hole; 340 - Second light-transmitting element; 400 - First driver; 410 - First drive body; 420 - First output shaft; 500 - Second driver; 510 - Second drive body; 520 - Second output shaft; 600-Camera Module; 700 - Transmission mechanism; 710 - First synchronous pulley; 720 - Second synchronous pulley; 730 - Synchronous belt; 810 - First rotary encoder; 811 - First encoder body; 812 - First rotating part; 820 - Second rotary encoder; 821 - Second encoder body; 822 - Second rotating part; 910 - Power board; 920 - Main board; 930 - First cable; 940 - Second cable; 950 - Slip ring; 951 - First electrical connection; 952 - Second electrical connection; 1010 - Windshield wiper; 1020 - Third drive; 1030 - Fill light. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below in conjunction with specific embodiments and corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0021] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0022] Furthermore, although the terminology used in this invention is selected from commonly known and used terms, some terms mentioned in this specification may have been selected by the inventor in his or her judgment, and their detailed meanings are explained in the relevant sections of the description herein.

[0023] Furthermore, it is required that this utility model be understood not only through the actual terminology used, but also through the meaning implied by each term.

[0024] The technical solutions provided by the various embodiments of this utility model are described in detail below with reference to the accompanying drawings.

[0025] This utility model embodiment provides an explosion-proof camera device. (See reference) Figures 1 to 8 The explosion-proof camera device 1 provided in this embodiment includes: a first housing assembly 100, a bracket assembly 200, a second housing assembly 300, a first driver 400, a second driver 500, and a camera module 600.

[0026] The bracket assembly 200 is rotatably connected to the first housing assembly 100 about the first axis 1a, and the second housing assembly 300 is rotatably connected to the bracket assembly 200 about the second axis 1b, wherein the second axis 1b is not parallel to the first axis 1a.

[0027] For example, the second axis 1b is perpendicular to the first axis 1a. For instance, the first axis 1a extends vertically, and the second axis 1b extends horizontally. Thus, when the first housing assembly 100 is fixed relative to the mounting base, the bracket assembly 200, the second housing assembly 300, and the camera module 600 can rotate relative to the mounting base about the vertical axis, and the second housing assembly 300 and the camera module 600 can rotate relative to the mounting base about the horizontal axis.

[0028] Of course, in other embodiments, the second axis 1b and the first axis 1a may be at other angles. Those skilled in the art can flexibly adjust the angles between the second axis 1b and the first axis 1a according to actual needs when implementing the solutions provided by the embodiments of this utility model; these will not be listed here individually.

[0029] The first housing assembly 100 is provided with a first receiving cavity 110. A first driver 400 is disposed in the first receiving cavity 110, and the first driver 400 is used to drive the bracket assembly 200 to rotate relative to the first housing assembly 100. Exemplarily, the first driver 400 is a first rotary motor, which can be driven to the bracket assembly 200 through a transmission mechanism such as a gear transmission mechanism or a belt transmission mechanism, or the first rotary motor can be directly driven to the bracket assembly 200 to drive the bracket assembly 200 to rotate relative to the first housing assembly 100. Since the scheme of using a driver to drive the bracket assembly 200 to rotate relative to the first housing assembly 100 is not difficult to implement, this embodiment of the utility model does not limit the scheme of the first driver 400 driving the bracket assembly 200 to rotate relative to the first housing assembly 100.

[0030] The second housing assembly 300 has a second receiving cavity 310, and the second driver 500 is at least partially located in the second receiving cavity 310. The second driver 500 includes a second drive body 510 and a second output shaft 520. The second drive body 510 is connected to the second housing assembly 300, the axis of the second output shaft 520 is collinear with the second axis 1b, and the second output shaft 520 is connected to the bracket assembly 200 to drive the second housing assembly 300 to rotate relative to the bracket assembly 200.

[0031] Thus, when the second driver 500 is working, the second output shaft 520 of the second driver 500 is connected to the bracket assembly 200, thereby the second drive body 510 of the second driver 500 rotates relative to the bracket assembly 200 around the second axis 1b, which in turn can drive the second housing assembly 300 to rotate relative to the bracket assembly 200 around the second axis 1b.

[0032] The camera module 600 is disposed in the second accommodating cavity 310, and the second housing assembly 300 is fitted with a first light-transmitting element 320 at the part opposite to the light-inlet portion of the camera module 600. In this way, the camera module 600 can receive ambient light through the first light-transmitting element 320 to take pictures.

[0033] In this manner, in the embodiments of this utility model, the first driver 400 for driving the bracket assembly 200 to rotate relative to the first housing assembly 100 is disposed in the first receiving cavity 110 of the first housing assembly 100, and the second driver 500 for driving the second housing assembly 300 to rotate relative to the bracket assembly 200 is at least partially located in the second receiving cavity 310 of the second housing assembly 300. In this way, the first driver 400 and the second driver 500 are disposed in two different receiving cavities, which can avoid the problem in the related art where the first driver and the second driver are disposed in the same receiving cavity, resulting in an excessively large housing size forming the receiving cavity, and thus making the structure of the explosion-proof camera device not compact enough.

[0034] refer to Figures 1 to 4 and Figure 7 In some embodiments, the support assembly 200 includes a support body 210. The support body 210 includes a base 211 and a first pivot portion 212 connected to each other. The first pivot portion 212 extends along a first axis 1a, and the first housing assembly 100 is provided with a first mounting hole 120 communicating with a first receiving cavity 110. A portion of the first pivot portion 212 passes through the first mounting hole 120. A first driver 400 is drivenly connected to one end of the first pivot portion 212 that extends into the first receiving cavity 110.

[0035] In this way, the first rotating shaft portion 212 of the bracket body 210 can be inserted through the first mounting hole 120, so that the first rotating shaft portion 212 of the bracket body 210 can rotate and engage with the hole wall of the first mounting hole 120, thereby realizing the rotatable connection between the bracket assembly 200 and the first housing assembly 100 around the first axis 1a.

[0036] Furthermore, in some embodiments, a bearing may be provided between the first rotating shaft portion 212 and the wall of the first mounting hole 120, thereby allowing the first rotating shaft portion 212 to rotate more smoothly relative to the wall of the first mounting hole 120. In some embodiments, the first rotating shaft portion 212 is provided with a retaining spring, thereby preventing the first rotating shaft portion 212 from falling out of the first mounting hole 120.

[0037] In some embodiments, the explosion-proof camera device 1 further includes a transmission mechanism 700. The transmission mechanism 700 includes a first synchronous pulley 710, a second synchronous pulley 720, and a synchronous belt 730. The first driver 400 includes a first drive body 410 and a first output shaft 420. The first drive body 410 is connected to the first housing assembly 100, and the first output shaft 420 is connected to the first synchronous pulley 710. A first rotating shaft portion 212 is connected to the second synchronous pulley 720, and the synchronous belt 730 is wound around the first synchronous pulley 710 and the second synchronous pulley 720 respectively.

[0038] For example, when the first driver 400 is a first motor, the first drive body 410 is the stator of the first motor, and the first output shaft 420 is a rotating shaft with rotor windings. During the operation of the first driver 400, the first output shaft 420 of the first driver 400 can drive the first synchronous pulley 710 to rotate, the first synchronous pulley 710 can drive the second synchronous pulley 720 to rotate via the synchronous belt 730, and the second synchronous pulley 720 can drive the first rotating shaft portion 212 of the support assembly 200 to rotate. Thus, the support assembly 200 can be driven to rotate relative to the first housing assembly 100.

[0039] It should be noted that, by way of example, the first driver 400 can also drive the bracket assembly 200 to rotate relative to the first housing assembly 100 through a transmission mechanism such as a gear transmission mechanism or a chain transmission mechanism; or, the first driver 400 can be directly connected to the first rotating shaft portion 212 of the bracket assembly 200, thereby directly driving the bracket assembly 200 to rotate relative to the first housing assembly 100. Those skilled in the art, in implementing the solutions provided by the embodiments of this utility model, can flexibly configure the transmission structure between the first driver 400 and the first rotating shaft portion 212 of the bracket assembly 200 according to requirements, which will not be listed here one by one.

[0040] refer to Figure 4 In some embodiments, the explosion-proof camera device 1 further includes a first rotary encoder 810. The first rotary encoder 810 includes a first encoder body 811 and a first rotating part 812. One of the first encoder body 811 and the first rotating part 812 is connected to the first rotating shaft 212, and the other is connected to the first housing assembly 100. The first rotary encoder 810 is used to detect parameters such as angular displacement and angular velocity of the first rotating shaft 212, and angle calibration can be performed based on the parameters obtained by the first rotary encoder 810. It should be noted that since rotary encoders are well-known components in the art, the structure and working principle of the first rotary encoder 810 will not be described in detail here.

[0041] refer to Figure 2 and Figure 4In some embodiments, the support body 210 further includes a connected side extension 213 and a second pivot portion 214. The side extension 213 protrudes from the edge of the base 211 relative to the base 211, and the second pivot portion 214 extends along the second axis 1b. The second housing assembly 300 is provided with a second mounting hole 330 communicating with the second accommodating cavity 310, and a portion of the second pivot portion 214 passes through the second mounting hole 330.

[0042] In this way, the second rotating shaft portion 214 of the bracket body 210 can be inserted through the second mounting hole 330 of the second housing assembly 300, so that the second rotating shaft portion 214 of the bracket body 210 and the hole wall of the second mounting hole 330 of the second housing assembly 300 can be rotated and engaged, thereby realizing the rotational connection between the second housing assembly 300 and the bracket assembly 200 around the second axis 1b.

[0043] Furthermore, in some embodiments, a bearing may be provided between the second rotating shaft portion 214 and the hole wall of the second mounting hole 330, so that the second rotating shaft portion 214 can rotate more smoothly relative to the hole wall of the second mounting hole 330.

[0044] refer to Figure 2 , Figure 4 and Figure 7 In some embodiments, the bracket assembly 200 further includes a side mount 220. The side mount 220 is spaced apart from the side extension 213 and is detachably connected to the base 211. Exemplarily, the side mount 220 can be fixedly connected to the base 211 by a threaded connector. The second driver 500 includes a second drive body 510 and a second output shaft 520. The second drive body 510 is connected to the second housing assembly 300, the axis of the second output shaft 520 is collinear with the second axis 1b, and the second output shaft 520 is connected to the side mount 220.

[0045] For example, when the second driver 500 is a second motor, the second drive body 510 is the stator of the second motor, and the second output shaft 520 is a rotating shaft with rotor windings. During operation of the second driver 500, the second output shaft 520 of the second driver 500 is connected to the side mount 220 of the support assembly 200, so that the second output shaft 520 of the second driver 500 is stationary relative to the support assembly 200. Furthermore, the second drive body 510 of the second driver 500 rotates relative to the support assembly 200, and thus the second drive body 510 of the second driver 500 can drive the second housing assembly 300 to rotate relative to the support assembly 200.

[0046] Exemplarily, the second driver 500 is entirely located within the second receiving cavity 310 of the second housing assembly 300. The second output shaft 520 of the second driver 500 is indirectly connected to the side mount 220 via an extension shaft. Exemplarily, a first gear is provided at the end of the extension shaft opposite to the second output shaft 520, and a second gear is provided on the side mount 220. The first gear meshes with the second gear, thereby limiting the rotation of the first gear relative to the side mount 220 by the second gear, thus limiting the rotation of the second output shaft 520 relative to the bracket assembly 200. Of course, exemplaryly, a flat key or spline is provided at the end of the extension shaft opposite to the second output shaft 520, and the side mount 220 is provided with a insertion hole for engaging with the flat key or spline. Furthermore, by inserting the extension shaft into the insertion hole, the rotation of the first gear relative to the side mount 220 can be limited, thereby limiting the rotation of the second output shaft 520 relative to the bracket assembly 200.

[0047] In this way, the second driver 500 is located in the second accommodating cavity 310 of the second housing assembly 300, and the camera module 600 is also located in the second accommodating cavity 310 of the second housing assembly 300, thereby improving the space utilization of the second accommodating cavity 310 of the second housing assembly 300.

[0048] refer to Figures 2 to 4 In some embodiments, the bracket assembly 200 further includes a second cover 250, which covers the portion of the second driver 500 connected to the side mount 220. In some embodiments, the bracket assembly 200 further includes a third cover 260. The third cover 260 covers the second cover 250 and is exposed on the outer surface of the explosion-proof camera device 1.

[0049] refer to Figure 4 , Figure 6 and Figure 7 In some embodiments, the explosion-proof camera device 1 further includes a power board 910, a main board 920, a first cable 930, and a second cable 940. Exemplarily, the power board 910 converts 220V AC mains power into DC power usable by the drivers and camera modules 600 of the explosion-proof camera device 1. The main board 920 may be equipped with control elements, etc. It should be noted that the power board 910 and the main board 920 can be developed according to requirements; therefore, their specific structures will not be described in detail here.

[0050] Furthermore, the power board 910 is disposed in the first accommodating cavity 110, and the main board 920 is disposed in the second accommodating cavity 310. The first rotating shaft portion 212 is provided with a first through hole 2121 extending along the first axis 1a, and a slip ring 950 is disposed in the first through hole 2121. It should be noted that the slip ring is an electrical component responsible for connecting and transmitting energy and signals to the rotating body. Since the slip ring is a component known in the art, the structure and working principle of the slip ring 950 will not be described in detail here.

[0051] The slip ring 950 includes a first electrical connection portion 951 and a second electrical connection portion 952. The power board 910 is connected to the first electrical connection portion 951 via a first cable 930. The second rotating shaft portion 214 is provided with a second through hole 2141 extending along the second axis 1b, and a portion of the second cable 940 passes through the second through hole 2141. One end of the second cable 940 is connected to the second electrical connection portion 952, and the other end is connected to the main board 920.

[0052] It should be noted that in some embodiments, the support body 210 is an irregularly shaped rotating support. The support body 210 is respectively provided with a first rotating shaft portion 212 and a second rotating shaft portion 214. The first rotating shaft portion 212 and the second rotating shaft portion 214 are perpendicular to each other. The first rotating shaft portion 212 can be referred to as a horizontal rotating shaft, and the second rotating shaft portion 214 can be referred to as a vertical rotating shaft.

[0053] The first rotating shaft portion 212 is provided with a first through hole 2121, and the second rotating shaft portion 214 is provided with a second through hole 2141. Both the first through hole 2121 and the second through hole 2141 form dispensing holes. After the slip ring 950 is provided in the first through hole 2121, adhesive can be dispensed onto the area enclosed by the slip ring 950, the second cable 940, and the first through hole 2121. When the second cable 940 passes through the second through hole 2141, adhesive can be dispensed onto the area enclosed by the second cable 940 and the second through hole 2141. For example, the adhesive filling the first through hole 2121 is explosion-proof adhesive, and the adhesive filling the second through hole 2141 is explosion-proof adhesive. For example, the length of the explosion-proof adhesive is greater than or equal to 20 mm. The slip ring 950 is used to enable the bracket assembly 200 to rotate continuously horizontally 360 degrees relative to the first housing assembly 100.

[0054] In some embodiments, by connecting the power board 910 to the motherboard 920 in sequence via the first cable 930, the slip ring 950 and the second cable 940, the components in the first accommodating cavity 110 of the first housing assembly 100 can be indirectly connected to the motherboard 920 through the connection with the power board 910, thereby realizing the connection of the components in the first accommodating cavity 110 and the second accommodating cavity 310.

[0055] It should be noted that a power board 910 is provided inside the first accommodating cavity 110; therefore, the first accommodating cavity 110 can be referred to as a power supply cavity. There is a cable inlet at the top of the first accommodating cavity 110, through which external cables can be passed into the first accommodating cavity 110 and connected to the power board 910.

[0056] refer to Figure 2 and Figure 4 In some embodiments, the bracket assembly 200 further includes a first cover 230. The bracket body 210 has a first wiring cavity 215, and the first cover 230 and the side extension 213 form a second wiring cavity 240. The bracket body 210 has a third through hole 216 connecting the first wiring cavity 215 and the second wiring cavity 240, and the first cover 230 covers the portion of the bracket body 210 that has the second through hole 2141 and the third through hole 216. A portion of the second cable 940 passes through the second through hole 2141, and a portion of the second cable 940 passes through the third through hole 216. In this way, the first cover 230 can be used to cover the second cable 940, the second through hole 2141, and the third through hole 216, thereby improving the explosion-proof performance of the explosion-proof camera device 1.

[0057] refer to Figure 4 and Figure 8 In some embodiments, the explosion-proof camera device 1 further includes a second rotary encoder 820. The second rotary encoder 820 includes a second encoder body 821 and a second rotating part 822. One of the second encoder body 821 and the second rotating part 822 is connected to the second rotating shaft 214, and the other is connected to the second housing assembly 300.

[0058] The second rotary encoder 820 is used to detect parameters such as angular displacement and angular velocity of the second rotating shaft 214 relative to the second housing assembly 300, and angle calibration can be performed based on the parameters obtained by the second rotary encoder 820. It should be noted that since rotary encoders are well-known components in the art, the structure and working principle of the second rotary encoder 820 will not be described in detail here.

[0059] In some embodiments, the explosion-proof camera device 1 further includes a windshield wiper 1010 and a third driver 1020. The third driver 1020 is disposed in the second receiving cavity 310, and the windshield wiper 1010 is disposed in the second housing assembly 300. The third driver 1020 is driven to the windshield wiper 1010. The wiping area of ​​the windshield wiper 1010 covers the outer surface of the first light-transmitting element 320. Thus, if liquid adheres to the outer surface of the first light-transmitting element 320, the windshield wiper 1010 can be used to wipe away the liquid.

[0060] It should be noted that in related technologies, explosion-proof camera devices are generally equipped with a spherical explosion-proof cover, which is located on the outer surface of the explosion-proof camera device to achieve the effect of explosion protection. However, setting a spherical cover will cause light to reflect multiple times between the lens on the surface of the camera module and the inner wall of the explosion-proof cover, thereby affecting the shooting effect of the camera module. The solution provided by this utility model embodiment eliminates the need to set a spherical cover on the outer surface of the explosion-proof camera device 1, thus avoiding the problem of the spherical cover interfering with shooting.

[0061] In some embodiments, the explosion-proof camera device 1 further includes a supplementary light 1030. The supplementary light 1030 is disposed in the second accommodating cavity 310, and a second light-transmitting element 340 is embedded in the second housing assembly 300 at the portion opposite to the light-emitting portion of the supplementary light 1030. In this way, during the shooting process of the camera module 600, the supplementary light 1030 can be used for supplementary lighting to improve the shooting quality of the camera module 600.

[0062] In some embodiments, the explosion-proof camera device 1 is further provided with a speaker and a microphone. This enables the explosion-proof camera device 1 to perform voice communication.

[0063] In some embodiments, the first housing assembly 100 and the bracket assembly 200 of the explosion-proof camera device 1 are made of metal. The second housing assembly 300 is also made of metal. Light-transmitting holes are provided in the light-transmitting parts of the second housing assembly 300, and light-transmitting sheets are disposed in the light-transmitting holes to seal them. Exemplarily, the first housing assembly 100, the bracket assembly 200, and the second housing assembly 300 are made of materials such as stainless steel or aluminum alloy.

[0064] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0065] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An explosion-proof camera device, characterized in that, include: First housing assembly (100), bracket assembly (200), second housing assembly (300), first driver (400), second driver (500) and camera module (600). The bracket assembly (200) is rotatably connected to the first housing assembly (100) about a first axis (1a), and the second housing assembly (300) is rotatably connected to the bracket assembly (200) about a second axis (1b), wherein the second axis (1b) is not parallel to the first axis (1a); The first housing assembly (100) is provided with a first receiving cavity (110), and the first driver (400) is provided in the first receiving cavity (110). The first driver (400) is used to drive the bracket assembly (200) to rotate relative to the first housing assembly (100); The second housing assembly (300) is provided with a second receiving cavity (310), and the second driver (500) is at least partially located in the second receiving cavity (310). The second driver (500) includes a second driving body (510) and a second output shaft (520). The second driving body (510) is connected to the second housing assembly (300), and the axis of the second output shaft (520) is collinear with the second axis (1b). The second output shaft (520) is connected to the bracket assembly (200) to drive the second housing assembly (300) to rotate relative to the bracket assembly (200). The camera module (600) is disposed in the second accommodating cavity (310), and the second housing assembly (300) is provided with a first light-transmitting element (320) at the part opposite to the light-inlet portion of the camera module (600).

2. The explosion-proof camera device according to claim 1, characterized in that, The bracket assembly (200) includes a bracket body (210), which includes a base (211) and a first rotating shaft (212) connected to each other. The first rotating shaft (212) extends along the first axis (1a). The first housing assembly (100) is provided with a first mounting hole (120) communicating with the first accommodating cavity (110). A portion of the first rotating shaft (212) passes through the first mounting hole (120). The first driver (400) is driven to connect with one end of the first rotating shaft (212) that extends into the first accommodating cavity (110).

3. The explosion-proof camera device according to claim 2, characterized in that, The explosion-proof camera device also includes a transmission mechanism (700), which includes a first synchronous pulley (710), a second synchronous pulley (720), and a synchronous belt (730). The first driver (400) includes a first drive body (410) and a first output shaft (420). The first drive body (410) is connected to the first housing assembly (100), the first output shaft (420) is connected to the first synchronous pulley (710), the first rotating shaft (212) is connected to the second synchronous pulley (720), and the synchronous belt (730) is wound around the first synchronous pulley (710) and the second synchronous pulley (720).

4. The explosion-proof camera device according to claim 2, characterized in that, The explosion-proof camera device also includes a first rotary encoder (810); The first rotary encoder (810) includes a first encoder body (811) and a first rotating part (812), one of the first encoder body (811) and the first rotating part (812) being connected to the first rotating shaft part (212) and the other being connected to the first housing assembly (100).

5. The explosion-proof camera device according to claim 2, characterized in that, The support body (210) also includes a side extension (213) and a second pivot (214) connected to each other. The side extension (213) protrudes from the edge of the base (211) relative to the base (211), and the second pivot (214) extends along the second axis (1b). The second housing assembly (300) is provided with a second mounting hole (330) communicating with the second accommodating cavity (310), and a portion of the second rotating shaft (214) passes through the second mounting hole (330).

6. The explosion-proof camera device according to claim 5, characterized in that, The bracket assembly (200) further includes a side mount (220) which is spaced apart from the side extension (213) and is detachably connected to the base (211); The second output shaft (520) is connected to the side mount (220).

7. The explosion-proof camera device according to claim 5, characterized in that, The explosion-proof camera device also includes a power board (910), a main board (920), a first cable (930), and a second cable (940). The power board (910) is disposed in the first accommodating cavity (110), and the main board (920) is disposed in the second accommodating cavity (310). The first rotating shaft (212) is provided with a first through hole (2121) extending along the first axis (1a), and a slip ring (950) is provided in the first through hole (2121). The slip ring (950) includes a first electrical connection part (951) and a second electrical connection part (952). The power board (910) is connected to the first electrical connection part (951) via the first cable (930). The second rotating shaft (214) is provided with a second through hole (2141) extending along the second axis (1b). A portion of the second cable (940) passes through the second through hole (2141). One end of the second cable (940) is connected to the second electrical connection part (952), and the other end is connected to the main board (920).

8. The explosion-proof camera device according to claim 7, characterized in that, The bracket assembly (200) further includes a first cover (230), the bracket body (210) is provided with a first wire-passing cavity (215), the first cover (230) and the side extension (213) form a second wire-passing cavity (240), the bracket body (210) is provided with a third through hole (216) connecting the first wire-passing cavity (215) and the second wire-passing cavity (240), the first cover (230) covers the part of the bracket body (210) provided with the second through hole (2141) and the third through hole (216), a portion of the second cable (940) passes through the second through hole (2141), and a portion of the second cable (940) passes through the third through hole (216).

9. The explosion-proof camera device according to claim 5, characterized in that, The explosion-proof camera device also includes a second rotary encoder (820), which includes a second encoder body (821) and a second rotating part (822). One of the second encoder body (821) and the second rotating part (822) is connected to the second rotating shaft part (214), and the other is connected to the second housing assembly (300).

10. The explosion-proof camera device according to claim 1, characterized in that, The explosion-proof camera device further includes a wiper (1010) and a third driver (1020). The third driver (1020) is disposed in the second accommodating cavity (310), and the wiper (1010) is disposed in the second housing assembly (300). The third driver (1020) is drivenly connected to the wiper (1010), wherein the wiping area of ​​the wiper (1010) covers the outer surface of the first light-transmitting element (320).

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