Intelligent monitoring device for dangerous chemical ship transportation

Abstract

The utility model discloses an intelligent monitoring device for dangerous chemical ship transportation, which comprises a fixed seat, a gun-type camera body and a far and near lens self-adaptive switching device, the fixed seat is fixedly connected to an external wall body, the inner wall of the fixed seat is fixedly connected with a driving motor, the gun-type camera body is rotatably connected to the surface of the fixed seat, and the gun-type camera body is rotatably connected with the near and near lens self-adaptive switching device. One end of a rotating shaft of the gun-type camera body penetrates into the fixing base and is fixedly connected with the output end of the driving motor, and the other end of the rotating shaft of the gun-type camera body penetrates out of the gun-type camera body and is fixedly connected with a transmission gear. The far and near lens self-adaptive switching device comprises a shell, a transmission assembly and a far and near lens switching mechanism. Therefore, the device can automatically switch the far-shot lens and the close-shot lens at the moment when the gun-type camera body is accurately adjusted to the preset angle, so that the extreme definition of a remote shot picture is ensured, and far and close scenes can be grabbed, thereby remarkably improving the overall quality of shooting.

Description

Technical Field

[0001] The utility model relates to the technical field of hazardous chemical transportation monitoring, and in particular to an intelligent monitoring device for hazardous chemical ship transportation. Background Art

[0002] In the field of hazardous chemicals transportation, ensuring the safety of the transportation process is of vital importance. Since hazardous chemicals are flammable, explosive, and toxic, once a leak or accident occurs, it will not only cause serious pollution to the environment, but may also pose a huge threat to the safety of people's lives and property. Therefore, it is particularly important to implement comprehensive and efficient monitoring measures during the transportation of hazardous chemicals.

[0003] Traditional monitoring methods for hazardous chemical transportation rely primarily on gun-type cameras, typically installed at strategic locations along transport routes or on ships, for real-time monitoring of designated areas. However, gun-type cameras have significant limitations: their monitoring range is limited, covering only a predetermined, fixed area. To overcome this limitation, researchers have developed adjustable-angle gun-type cameras. By adjusting the camera's angle, the monitoring range can be expanded to cover more areas. However, these cameras still present challenges. Equipped with only a close-up lens, they struggle to maintain high-quality long-range video. This results in blurry images during long-range monitoring, preventing key information from being clearly captured. Utility Model Content

[0004] The utility model aims to solve one of the technical problems in the related art at least to a certain extent.

[0005] To this end, the purpose of the present utility model is to propose an intelligent monitoring device for the transportation of hazardous chemicals on ships. The device can automatically switch between long-range and short-range lenses at the moment when the gun-type camera body is accurately adjusted to a preset angle, ensuring the ultimate clarity of the remote camera image, so that both distant and near objects can be clearly seen, thereby significantly improving the overall quality of the camera.

[0006] To achieve the above-mentioned objectives, the utility model proposes an intelligent monitoring device for hazardous chemical ship transportation, comprising a fixing seat, a gun-type camera body and a telephoto lens adaptive switching device, wherein the fixing seat is fixedly connected to the external wall, the inner wall of the fixing seat is fixedly connected to a drive motor, the gun-type camera body is rotatably connected to the surface of the fixing seat, one end of the rotating shaft of the gun-type camera body passes through the interior of the fixing seat and is fixedly connected to the output end of the drive motor, the other end of the rotating shaft of the gun-type camera body passes through the outside of the gun-type camera body and is fixedly connected to a transmission gear; the telephoto lens adaptive switching device comprises a shell, a transmission assembly and a telephoto lens switching mechanism, wherein the shell is fixedly connected to the outer surface of the gun-type camera body and is sleeved on the outside of the transmission gear, the transmission assembly is arranged inside the shell and connected to the transmission gear, and the telephoto lens switching mechanism is arranged inside the shell and connected to the transmission assembly.

[0007] In addition, the intelligent monitoring device for hazardous chemicals transported by ship proposed in the application may also have the following additional technical features:

[0008] The transmission assembly comprises a first driving gear, a toothed synchronous belt, a worm, a coaxial gear, a worm wheel and a second driving gear, wherein the worm and the coaxial gear are respectively rotatably connected to the inner wall of the housing and have corresponding positions, and the first driving gear is respectively provided at the corresponding positions of one end surface of the central axis of the worm and one end surface of the central axis of the coaxial gear, and are connected through the toothed synchronous belt, the coaxial gear is located on one side of the top of the transmission gear and meshes with the transmission gear, the worm wheel is rotatably connected to the inner wall of the housing and meshes with the worm, the second driving gear is rotatably connected to the inner wall of the housing and is coaxially arranged with the worm wheel, and the second driving gear is connected to the telephoto lens switching mechanism; the telephoto lens switching mechanism comprises a frame body, a D-shaped gear rod, a switching rod body, a connecting end, a first spring, a lens mounting seat and a limit shaft, wherein The frame is fixedly connected to the inner wall of the shell, the D-shaped gear rod is symmetrically slidably connected to the inner wall of the frame and is located on the outside of the second driving gear, the second driving gear is respectively engaged with the teeth on the surface of the two groups of D-shaped gear rods, the switching lever body is symmetrically rotatably connected to the surface of the frame, the two groups of middle end surfaces of the switching lever bodies and the two groups of middle end surfaces of the D-shaped gear rods are respectively fixedly connected with the connecting end heads at corresponding positions, and are connected by the first spring, the lens mounting seat is integrally formed and arranged on the end surface of the switching lever body away from the frame, the limiting axis is symmetrically fixedly connected to the surface of the frame and is located on the outside of the switching lever body; the lens assembly includes a telephoto lens and a close-up lens, the telephoto lens and the close-up lens are respectively fixedly connected to the two groups of lens mounting seats, one group of lenses corresponds to the position of the camera hole on the surface of the gun camera body and the surface of the shell.

[0009] Specifically, the telephoto lens switching mechanism further includes a first buffer mechanism, which is used to effectively buffer the rod body itself and the lens mounting seat connected thereto after the switching rod body completes the direction conversion.

[0010] Specifically, the first buffer mechanism includes a first rubber protective sleeve, a second rubber protective sleeve, a mounting block and an pearl cotton pad, wherein the first rubber protective sleeve is respectively sleeved on the outer surfaces of the two groups of limit shafts, and the second rubber protective sleeve is respectively sleeved on the outer surfaces of the two groups of lens mounting seats, the mounting block is symmetrically fixedly connected to the surface of the frame, and the pearl cotton pad is bonded and fixed to the outer surface of the mounting block and contacts the surface of the second rubber protective sleeve.

[0011] Specifically, the first buffer mechanism further includes a second buffer mechanism, and the second buffer mechanism is used to effectively buffer the switching lever body before the lens mounting seat after the switching lever body completes the direction conversion.

[0012] Specifically, the second buffer mechanism includes a rubber arc stopper, a second spring and a limiting ring, wherein the rubber arc stopper is located outside the first rubber protective sleeve and contacts the surface of the first rubber protective sleeve, one end of the rubber arc stopper penetrates into the interior of the limiting shaft and is horizontally slidably connected to the inner wall of the limiting shaft, the second spring is sleeved on the outside of the end of the rubber arc stopper that penetrates into the interior of the limiting shaft, one end of the second spring is fixedly connected to the inner wall of the limiting shaft, and the other end of the second spring is fixedly connected to the surface of the limiting ring arranged on the surface of the limiting shaft.

[0013] Additional aspects and advantages of the present invention will be given in part in the following description and in part will become apparent from the following description or learned through practice of the present invention.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. The utility model has a reasonable structure. It is equipped with a telephoto lens adaptive switching device. The telephoto lens adaptive switching device can adjust the position of the telephoto and near-field lenses simultaneously with the telephoto and near-field angles of the gun-type camera body. Once the gun-type camera body is accurately aligned with the preset angle, the automatic telephoto lens switching mechanism is immediately triggered to switch between the telephoto and near-field lenses. This ensures the ultimate clarity of the remote camera image, and every detail of the scene, whether far or near, can be clearly seen, thereby significantly improving the overall quality of the camera.

[0016] 2. The utility model is equipped with a first buffer mechanism, which is specially designed for switching operations. It aims to effectively buffer the lever body itself and the lens mount connected to it after the switching lever body completes the direction change. Through this mechanism, the impact force caused by rapid switching is significantly reduced, not only achieving a smooth transition in the operation of the equipment, but also effectively achieving the dual effects of noise reduction and vibration reduction, thereby improving the overall user comfort and durability of the equipment.

[0017] 3. The present invention is also equipped with a second buffer mechanism, which is used to provide a pre-buffering effect for the switching rod body before the lens mount buffers. When the switching rod body encounters external force or moves quickly during operation, the second buffer mechanism can first absorb and slow down these impact forces, thereby effectively reducing the vibration amplitude subsequently transmitted to the lens mount. This design not only extends the service life of the equipment, but also further reduces the potential impact of vibration on the lens assembly, thereby optimizing the overall camera effect and user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which:

[0019] Figure 1 This is a schematic diagram of the structure of an intelligent monitoring device for hazardous chemicals transported by ship in this utility model;

[0020] Figure 2 This is a schematic diagram of the structure of a drive motor in an intelligent monitoring device for hazardous chemicals ship transportation according to the present utility model;

[0021] Figure 3 This is a schematic diagram of the transmission component structure of an intelligent monitoring device for hazardous chemicals ship transportation in the utility model;

[0022] Figure 4 This is a schematic structural diagram of the first buffer mechanism in an intelligent monitoring device for hazardous chemicals ship transportation according to the present utility model;

[0023] Figure 5 This is a schematic structural diagram of the second buffer mechanism in an intelligent monitoring device for hazardous chemicals ship transportation according to the present invention.

[0024] As shown in the figure:

[0025] 1. Fixed base; 11. Drive motor; 2. Gun-type camera body; 3. Adaptive switching device for telephoto and near lens;

[0026] 21. Transmission gear; 31. Housing; 32. Transmission assembly; 33. Lens switching mechanism;

[0027] 321, first drive gear; 322, toothed synchronous belt; 323, worm; 324, coaxial gear; 325, worm wheel; 326, second drive gear;

[0028] 331, frame; 332, D-shaped gear rod; 333, switching rod body; 334, connecting end; 335, first spring; 336, lens mounting seat; 337, limit shaft;

[0029] 100, lens assembly; 200, camera hole;

[0030] 4. First buffer mechanism; 41. First rubber protective sleeve; 42. Second rubber protective sleeve; 43. Mounting block; 44. Pearl cotton pad;

[0031] 5. Second buffer mechanism; 51. Rubber arc stopper; 52. Second spring; 53. Limiting ring. DETAILED DESCRIPTION

[0032] The following describes in detail embodiments of the present invention, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention. On the contrary, the embodiments of the present invention include all variations, modifications, and equivalents that fall within the spirit and scope of the appended claims.

[0033] An intelligent monitoring device for hazardous chemicals shipping according to an embodiment of the present invention will be described below with reference to the accompanying drawings.

[0034] like Figure 1-Figure 5 As shown, an intelligent monitoring device for hazardous chemical ship transportation according to an embodiment of the present invention includes a fixing base 1, a gun-type camera body 2 and a telephoto lens adaptive switching device 3, wherein the fixing base 1 is fixedly connected to the external wall, the inner wall of the fixing base 1 is fixedly connected to the driving motor 11, the gun-type camera body 2 is rotatably connected to the surface of the fixing base 1, one end of the rotating shaft of the gun-type camera body 2 passes through the interior of the fixing base 1 and is fixedly connected to the output end of the driving motor 11, and the other end of the rotating shaft of the gun-type camera body 2 passes through the outside of the gun-type camera body 2 and is fixedly connected to the transmission gear 21; the telephoto lens adaptive switching device 3 includes a shell 31, a transmission assembly 32 and a telephoto lens switching mechanism 33, wherein the shell 31 is fixedly connected to the outer surface of the gun-type camera body 2 and is sleeved on the outside of the transmission gear 21, the transmission assembly 32 is arranged inside the shell 31 and connected to the transmission gear 21, and the telephoto lens switching mechanism 33 is arranged inside the shell 31 and connected to the transmission assembly 32.

[0035] It should be noted that the gun-type camera body 2 and the driving motor 11 described in this embodiment are both existing technologies and will not be described in detail here.

[0036] It can be understood that the gun-type camera body 2 has a basic processor, an image processing module and a wireless communication module built in. The gun-type camera body 2 transmits data and receives instructions with an external host computer through the wireless communication module. The processor controls the operation of the drive motor 11 according to the instruction information. The operation of the drive motor 11 synchronously drives the gun-type camera body 2 to rotate, thereby adjusting the camera angle.

[0037] Specifically, during use, the driving motor 11 synchronously drives the gun-type camera body 2 to rotate, and the rotation of the gun-type camera body 2 synchronously changes the shooting angle, shooting from the near shot to the far shot. During the rotation process, the gun-type camera body 2 synchronously drives the transmission gear 21 to rotate, and the rotation of the transmission gear 21 synchronously drives the transmission component 32 to operate, and the operation of the transmission component 32 synchronously drives the telephoto and near shot switching mechanism 33 to operate. At the moment when the gun-type camera body 2 is accurately adjusted to the preset angle, the telephoto and near shot switching mechanism 33 automatically switches between the far and near shots, ensuring the ultimate clarity of the remote camera picture, so that both distant and near objects can be clearly seen, thereby significantly improving the overall quality of the camera and having a good use effect.

[0038] In one embodiment of the present invention, Figure 3 As shown, the transmission assembly 32 includes a first driving gear 321, a toothed synchronous belt 322, a worm 323, a coaxial gear 324, a worm wheel 325 and a second driving gear 326, wherein the worm 323 and the coaxial gear 324 are respectively rotatably connected to the inner wall of the housing 31 and are positioned correspondingly, and the first driving gear 321 is respectively provided at the corresponding positions of the surface of one end of the central axis of the worm 323 and the surface of one end of the central axis of the coaxial gear 324, and are connected by a toothed synchronous belt 322, and the coaxial gear 324 is positioned at the inner wall of the housing 31. The worm gear 325 is connected to the inner wall of the housing 31 and meshes with the worm 323. The second driving gear 326 is connected to the inner wall of the housing 31 and is coaxially arranged with the worm gear 325. The second driving gear 326 is connected to the telephoto lens switching mechanism 33. The telephoto lens switching mechanism 33 includes a frame 331, a D-shaped gear rod 332, a switching rod body 333, a connecting end 334, a first spring 335, and a lens mounting seat 33. 6 and a limiting shaft 337, wherein the frame body 331 is fixedly connected to the inner wall of the shell 31, the D-shaped gear rod 332 is symmetrically slidably connected to the inner wall of the frame body 331, and is located on the outside of the second driving gear 326, the second driving gear 326 is respectively engaged with the teeth on the surface of the two groups of D-shaped gear rods 332, the switching rod body 333 is symmetrically connected to the surface of the frame body 331, and the middle end surfaces of the two groups of switching rod bodies 333 and the middle end surfaces of the two groups of D-shaped gear rods 332 are respectively fixedly connected with the connecting end 334, and Connected by a first spring 335, the lens mounting seat 336 is integrally formed and arranged on the surface of the end of the switching rod body 333 away from the frame body 331, and the limiting shaft 337 is symmetrically fixedly connected to the surface of the frame body 331 and is located on the outside of the switching rod body 333; the lens assembly 100 includes a telephoto lens and a close-up lens, which are respectively fixedly connected to two groups of lens mounting seats 336, one of which corresponds to the position of the camera hole 200 on the surface of the gun-type camera body 2 and the surface of the shell 31.

[0039] It is understandable that, during use, there can only be one set of lenses corresponding to the position of the camera hole 200 .

[0040] Specifically, when in use, the transmission gear 21 rotates and synchronously drives the coaxial gear 324 to rotate. The coaxial gear 324 cooperates with the first driving gear 321 and the toothed synchronous belt 322 to synchronously drive the worm 323 to rotate. The rotation of the worm 323 synchronously drives the worm wheel 325 and the second driving gear 326 to rotate. The rotation of the second driving gear 326 synchronously drives the two sets of D-shaped gear rods 332 to move in opposite directions along the inner wall of the frame 331. The two sets of D-shaped gear rods 332 synchronously pull the first spring 335 during the movement. When the gun-type camera body 2 is accurately adjusted to the preset angle, the traction force of the first spring 335 also reaches the maximum value synchronously, and simultaneously The switching rod body 333 is driven to move from one side of the frame body 331 to the other side of the frame body 331 with the surface of the frame body 331 as the center. Since the two groups of switching rod bodies 333 move in opposite directions, the two groups of lens mounting seats 336 also move in opposite directions. That is, the telephoto lens moves toward the camera hole 200, and the close-up lens moves away from the camera hole 200. The switching rod body 333 stops moving after contacting the limit shaft 337, thereby realizing the switching between the telephoto and close-up lenses. By switching the telephoto lens, the ultimate clarity of the remote camera image is ensured, and both distant and near objects can be clearly seen, thereby significantly improving the overall quality of the camera and having a good use effect.

[0041] In one embodiment of the present invention, Figure 4 As shown, the telephoto lens switching mechanism 33 further includes a first buffer mechanism 4, which is used to effectively buffer the rod body itself and the lens mounting seat 336 connected thereto after the switching rod body 333 completes the direction conversion.

[0042] Specifically, by setting up the first buffer mechanism 4, the impact force caused by rapid switching is significantly reduced, which not only realizes the smooth transition of equipment operation, but also effectively achieves the dual effects of noise reduction and shock absorption, thereby improving the overall comfort of use and the durability of the equipment, and has a good use effect.

[0043] In one embodiment of the present invention, Figure 4 As shown, the first buffer mechanism 4 includes a first rubber protective sleeve 41, a second rubber protective sleeve 42, a mounting block 43 and an pearl cotton pad 44, wherein the first rubber protective sleeve 41 is respectively sleeved on the outer surfaces of the two groups of limit shafts 337, and the second rubber protective sleeve 42 is respectively sleeved on the outer surfaces of the two groups of lens mounting seats 336, the mounting block 43 is symmetrically fixedly connected to the surface of the frame 331, and the pearl cotton pad 44 is bonded and fixed to the outer surface of the mounting block 43 and contacts the surface of the second rubber protective sleeve 42.

[0044] Specifically, the first rubber protective sleeve 41 and the second rubber protective sleeve 42 can respectively reduce the impact force generated by the rapid switching of the switching rod body 333 and the lens mounting seat 336, and the pearl cotton pad 44 can further reduce the impact force generated by the rapid switching of the lens mounting seat 336, thereby effectively reducing the vibration amplitude subsequently transmitted to the lens mounting seat 336. This design not only extends the service life of the equipment, but also further reduces the potential impact of vibration on the lens assembly 100, thereby optimizing the overall camera effect and user experience.

[0045] In one embodiment of the present invention, Figure 5 As shown, the first buffer mechanism 4 further includes a second buffer mechanism 5 , which is used to effectively buffer the switch lever body 333 before the lens mounting seat 336 after the switch lever body 333 completes the direction conversion.

[0046] Specifically, the second buffer mechanism 5 can effectively buffer the switching rod body 333 before the lens mounting seat 336 after the switching rod body 333 completes the direction conversion, effectively reducing the vibration amplitude subsequently transmitted to the lens mounting seat 336. This design not only extends the service life of the equipment, but also further reduces the potential impact of vibration on the lens assembly 100, thereby optimizing the overall camera effect and user experience.

[0047] In one embodiment of the present invention, Figure 5 As shown, the second buffer mechanism 5 includes a rubber arc-shaped stopper 51, a second spring 52 and a limiting ring 53, wherein the rubber arc-shaped stopper 51 is located on the outside of the first rubber protective sleeve 41 and contacts the surface of the first rubber protective sleeve 41, one end of the rubber arc-shaped stopper 51 passes through the interior of the limiting shaft 337 and is horizontally slidably connected to the inner wall of the limiting shaft 337, the second spring 52 is sleeved on the outside of one end of the rubber arc-shaped stopper 51 passing through the interior of the limiting shaft 337, one end of the second spring 52 is fixedly connected to the inner wall of the limiting shaft 337, and the other end of the second spring 52 is fixedly connected to the surface of the limiting ring 53 set on the surface of the limiting shaft 337.

[0048] Specifically, after the switching rod body 333 completes the direction conversion, it will first contact the rubber arc block 51 and squeeze the rubber arc block 51 to move toward the side of the first rubber protective sleeve 41. During the movement of the rubber arc block 51, the second spring 52 is simultaneously squeezed. The second spring 52 can buffer part of the impact force, effectively reducing the vibration amplitude subsequently transmitted to the lens mounting seat 336, and the use effect is good.

[0049] In summary, the embodiment of the present invention is an intelligent monitoring device for hazardous chemicals shipping. This device can automatically switch between long-range and short-range lenses at the moment when the gun-type camera body 2 is accurately adjusted to a preset angle, ensuring the ultimate clarity of the remote camera image. No matter far or near, all objects can be clearly seen, thereby significantly improving the overall quality of the camera.

[0050] In this specification, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include at least one of such features. In the description of this utility model, "plurality" means at least two, for example, two, three, etc., unless otherwise specifically defined.

[0051] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and features of different embodiments or examples without contradiction.

[0052] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are illustrative and cannot be understood as limitations on the present invention. Ordinary technicians in this field can change, modify, replace and deform the above embodiments within the scope of the present invention.

Claims

1. An intelligent monitoring device for hazardous chemicals transport by ship, characterized in that: It comprises a fixing seat (1), a gun-type camera body (2) and a telephoto lens adaptive switching device (3), wherein: The fixing seat (1) is fixedly connected to the external wall, the inner wall of the fixing seat (1) is fixedly connected to the driving motor (11), the gun-type camera body (2) is rotatably connected to the surface of the fixing seat (1), one end of the rotating shaft of the gun-type camera body (2) passes through the inside of the fixing seat (1) and is fixedly connected to the output end of the driving motor (11), and the other end of the rotating shaft of the gun-type camera body (2) passes through the outside of the gun-type camera body (2) and is fixedly connected to the transmission gear (21); The telephoto lens adaptive switching device (3) comprises a housing (31), a transmission assembly (32) and a telephoto lens switching mechanism (33), wherein the housing (31) is fixedly connected to the outer surface of the gun-type camera body (2) and is sleeved on the outer side of the transmission gear (21); the transmission assembly (32) is arranged inside the housing (31) and is connected to the transmission gear (21); and the telephoto lens switching mechanism (33) is arranged inside the housing (31) and is connected to the transmission assembly (32).

2. The intelligent monitoring device according to claim 1, characterized in that: The transmission assembly (32) includes a first driving gear (321), a toothed synchronous belt (322), a worm (323), a coaxial gear (324), a worm wheel (325), and a second driving gear (326), wherein the worm (323) and the coaxial gear (324) are respectively rotatably connected to the inner wall of the housing (31) and are positioned correspondingly, and the first driving gear (321) is respectively provided at positions corresponding to the positions of the one end surface of the central axis of the worm (323) and the one end surface of the central axis of the coaxial gear (324). and are connected via the toothed synchronous belt (322); the coaxial gear (324) is located on one side of the top of the transmission gear (21) and meshes with the transmission gear (21); the worm gear (325) is rotatably connected to the inner wall of the housing (31) and meshes with the worm (323); the second driving gear (326) is rotatably connected to the inner wall of the housing (31) and is coaxially arranged with the worm gear (325); the second driving gear (326) is connected to the telephoto lens switching mechanism (33); The telephoto lens switching mechanism (33) comprises a frame (331), a D-shaped gear rod (332), a switching rod body (333), a connecting end (334), a first spring (335), a lens mounting seat (336) and a limiting shaft (337), wherein the frame (331) is fixedly connected to the inner wall of the housing (31), the D-shaped gear rod (332) is symmetrically slidably connected to the inner wall of the frame (331) and is located outside the second driving gear (326), and the second driving gear (326) is respectively engaged with the teeth on the surfaces of the two groups of the D-shaped gear rods (332). The switching rod body (333) is symmetrically connected to the surface of the frame body (331) in a rotationally symmetrical manner. The connecting ends (334) are fixedly connected to corresponding positions of the middle end surfaces of the two groups of switching rod bodies (333) and the middle end surfaces of the two groups of D-shaped gear rods (332), and are connected via the first spring (335). The lens mounting seat (336) is integrally formed and arranged on an end surface of the switching rod body (333) away from the frame body (331). The limiting shaft (337) is symmetrically fixedly connected to the surface of the frame body (331) and is located outside the switching rod body (333). The lens assembly (100) includes a long-range lens and a short-range lens, which are respectively fixedly connected to two groups of lens mounting seats (336), wherein one group of lenses corresponds to the position of the camera holes (200) on the surface of the gun-type camera body (2) and the surface of the shell (31).

3. The intelligent monitoring device according to claim 2, characterized in that: The telephoto lens switching mechanism (33) further comprises a first buffer mechanism (4), the first buffer mechanism (4) being used to effectively buffer the rod body itself and the lens mounting seat (336) connected thereto after the switching rod body (333) completes the direction conversion.

4. The intelligent monitoring device according to claim 3, characterized in that: The first buffer mechanism (4) comprises a first rubber protective sleeve (41), a second rubber protective sleeve (42), a mounting block (43) and an pearl cotton pad (44), wherein the first rubber protective sleeve (41) is respectively sleeved on the outer surfaces of the two groups of the limiting shafts (337), the second rubber protective sleeve (42) is respectively sleeved on the outer surfaces of the two groups of the lens mounting seats (336), the mounting block (43) is symmetrically fixedly connected to the surface of the frame (331), and the pearl cotton pad (44) is bonded and fixed to the outer surface of the mounting block (43) and contacts the surface of the second rubber protective sleeve (42).

5. The intelligent monitoring device according to claim 4, characterized in that: The first buffer mechanism (4) further comprises a second buffer mechanism (5), the second buffer mechanism (5) being used to effectively buffer the switching rod body (333) before the lens mounting seat (336) after the switching rod body (333) completes the direction conversion.

6. The intelligent monitoring device according to claim 5, characterized in that: The second buffer mechanism (5) comprises a rubber arc stopper (51), a second spring (52) and a limiting ring (53), wherein the rubber arc stopper (51) is located outside the first rubber protective sleeve (41) and contacts the surface of the first rubber protective sleeve (41), one end of the rubber arc stopper (51) penetrates into the interior of the limiting shaft (337) and is horizontally slidably connected to the inner wall of the limiting shaft (337), the second spring (52) is sleeved on the outside of one end of the rubber arc stopper (51) that penetrates into the interior of the limiting shaft (337), one end of the second spring (52) is fixedly connected to the inner wall of the limiting shaft (337), and the other end of the second spring (52) is fixedly connected to the surface of the limiting ring (53) arranged on the surface of the limiting shaft (337).

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