Road monitoring device with protective structure
By introducing lightning rods and grounding systems into the road monitoring device, combined with rubber pads and rubber tubes to prevent current conduction, and utilizing a ratchet and stepper motor transmission structure, the problems of camera inertia and lightning strike risk are solved, achieving lightning strike resistance and precise angle adjustment of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHAANXI YANGMING TRANSPORTATION TECH CO LTD
- Filing Date
- 2025-06-17
- Publication Date
- 2026-07-24
AI Technical Summary
The protective structure of existing road monitoring devices increases the inertia of the cameras, affecting their rotation accuracy, and poses a risk of lightning strikes in plain areas.
Lightning rods and grounding conductor systems are used to prevent lightning strikes. Rubber pads and tubes are used to block current conduction. A combination of ratchet and stepper motor transmission structure is used to limit the inertial rotation of the camera and ensure precise angle adjustment.
It effectively prevents damage from lightning strikes, improves the equipment's lightning protection performance, and ensures that the camera remains inertial and rotates precisely when adjusting its angle.
Smart Images

Figure CN224555690U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of warning sign technology, specifically a road monitoring device with a protective structure. Background Technology
[0002] Road monitoring primarily uses PTZ cameras, with monitoring points distributed at road intersections and key road sections where traffic and pedestrian flow are concentrated. The road traffic conditions are uploaded to the road monitoring and command center in real time through the image transmission channel. The center staff can then understand the road conditions in each area in a timely manner to adjust the traffic flow at each intersection and ensure smooth traffic. Therefore, we need a road monitoring device with a protective structure.
[0003] The existing Chinese utility model patent with publication number CN218041585U discloses a road monitoring device with a protective structure, relating to the field of road monitoring. It includes a monitoring camera, a protective top welded to the outer side of the camera, and a heat dissipation pipe fixedly connected to the outer wall of the camera. A dustproof mesh is embedded in the lower part of the heat dissipation pipe. A connecting frame is fixedly installed on the lower outer side of the camera, and a rotating block is movably installed on the inner wall of the connecting frame. An adjusting frame is movably connected to the outer wall of the rotating block. A mounting frame is welded to the lower outer side of the adjusting frame, and a connecting block is attached to one side of the mounting frame. A rotating shaft is rotatably installed on the inner wall of the connecting block. This utility model, through its protective top, provides excellent protection for the monitoring camera, preventing unpredictable airborne factors such as bird droppings from dripping onto the camera's surface and causing corrosion, thus extending the camera's lifespan.
[0004] The aforementioned road monitoring device protects the surveillance camera by adding a protective top. This method increases the weight of the camera and its inertia. When adjusting the camera's orientation, it may not be able to rotate the camera precisely to a certain angle. Furthermore, the protective top is made of metal, and the camera requires a certain installation height, posing a certain risk of lightning strikes when installed in flat areas. Utility Model Content
[0005] To address the shortcomings of existing technologies, this utility model provides a road monitoring device with a protective structure, which solves the problems of the protective structure affecting the rotation of the camera and the risk of being struck by lightning in plain areas.
[0006] To achieve the above objectives, this utility model is implemented through the following technical solution: A road monitoring device with a protective structure includes a support pipe, a lightning rod is fixedly installed at the top of the support pipe, a ground wire is fixedly installed at the bottom of the lightning rod, a fixing pipe is fixedly installed above the support pipe, a rubber tube is inserted into the flange structure opening below the fixing pipe, a rubber pad is fixedly installed below the fixing pipe, a protective mechanism is fixedly installed below the fixing pipe to prevent foreign objects from affecting the operation of the monitoring device, and a monitoring mechanism is fixedly installed below the fixing pipe.
[0007] The monitoring mechanism includes a connecting pipe fixed to the lower end of the fixed pipe. A ratchet and a stepper motor are fixedly installed inside the connecting pipe. A transmission frame is inserted and installed on the outside of the rotating shaft of the stepper motor. A camera is movably installed below the connecting pipe. A pawl is movably installed above the camera. A spring is fixedly installed on the inner end of the pawl.
[0008] Preferably, the lower half of the support tube has a tapered structure and a plate-like protrusion on the outside. The ground wire is located inside the cavity of the support tube, and the top end of the ground wire is fixedly connected to the bottom end of the lightning rod. The length of the ground wire is greater than the length of the support tube.
[0009] Preferably, the protective mechanism includes a fixing frame fixed to the outside of the fixing pipe, a skeleton fixedly installed at the bottom end of the fixing frame, and a metal canopy fixedly installed above the fixing frame.
[0010] Preferably, the fixing frame is symmetrically installed on the left and right sides of the fixing frame with the lower branch of the center of the fixing tube as the reference. The center of the metal shed is provided with an opening structure that fits into the fixing tube. The metal shed is fixedly connected to the fixing tube through the frame, the fixing frame and the fixing tube.
[0011] Preferably, there are two ratchet wheels stacked inside the connecting tube, with the teeth of the upper and lower ratchet wheels facing opposite directions. The bottom of the transmission frame has columnar protrusions on both sides. The camera is rotatably connected to the connecting tube via a bearing. The top of the camera has a vertical protrusion at its center, and the protrusion has grooves on both sides that engage with the pawl.
[0012] Preferably, the pawls are mirror-symmetrically installed inside the sliding grooves on both sides of the top of the camera. The spring connects the inner end of the pawls and the vertical protrusion at the top of the camera. The pawls on the left and right sides of the camera are respectively engaged with the ratchet wheels on the upper and lower sides. A mirror-symmetrical triangular prism structure is provided above the pawls, and the inclined surface of the triangular prism contacts the columnar structure at the bottom of the transmission frame. Beneficial effects
[0013] This utility model provides a road monitoring device with a protective structure. Compared with the prior art, it has the following advantages:
[0014] (1) The road monitoring device with protective structure can actively attract lightning current through the tip discharge effect by setting up a lightning rod, and conduct the current to the ground through the ground wire connected at the bottom, thereby preventing lightning from damaging the monitoring equipment. At the same time, by installing rubber pads between adjacent flange structures and between the flange structure and the contact surface of the bolts and nuts, and inserting rubber tubes into the openings of the flange structure, the current path between each area cannot be formed through the bolts and nuts, further preventing the current from being conducted between the supporting structures and improving the lightning protection performance of the equipment.
[0015] (2) The road monitoring device with protective structure, through the setting of the ratchet, when the transmission frame is driven by the stepper motor to rotate clockwise, the left columnar structure below the transmission frame will contact the slope structure above the left pawl, and the tooth structure of the pawl points in the opposite direction to the slope structure. Thus, when the transmission frame rotates clockwise, the transmission frame drives the left pawl to move towards the center of rotation, so that the left pawl does not mesh with the upper ratchet. When the transmission frame rotates counterclockwise, the right pawl will not mesh with the lower ratchet. The spring can keep the pawl meshed with the ratchet when there is no external force. In this way, the camera can only be moved by the upper transmission frame. The rotational inertia of the lower camera will be limited by the pawl inside the slide, preventing the camera's inertia from affecting the angle adjustment. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0017] Figure 2 This is a schematic diagram of the lightning rod installation structure of this utility model;
[0018] Figure 3 This is a schematic diagram of the metal shed installation structure of this utility model;
[0019] Figure 4 This is a schematic diagram of the stepper motor mounting structure of this utility model;
[0020] Figure 5 This is a schematic diagram of the connection structure between the pawl and the ratchet of this utility model;
[0021] In the diagram: 1. Support pipe; 11. Lightning rod; 12. Grounding wire; 13. Fixing pipe; 14. Rubber hose; 15. Rubber pad; 2. Protective mechanism; 21. Fixing frame; 22. Frame; 23. Metal canopy; 3. Monitoring mechanism; 31. Connecting pipe; 32. Ratchet; 33. Stepper motor; 34. Transmission frame; 35. Camera; 36. Pawl; 37. Spring. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0023] Please see Figure 1-5 This utility model provides a technical solution: a road monitoring device with a protective structure, including a support pipe 1, a lightning rod 11 fixedly installed at the top of the support pipe 1, a ground wire 12 fixedly installed at the bottom of the lightning rod 11, a fixing pipe 13 fixedly installed above the support pipe 1, a rubber tube 14 inserted into the flange structure opening below the fixing pipe 13, a rubber pad 15 fixedly installed below the fixing pipe 13, the lower half of the support pipe 1 is a conical structure with a plate-shaped protrusion on the outside, the ground wire 12 is located inside the cavity of the support pipe 1, the top of the ground wire 12 is fixedly connected to the bottom of the lightning rod 11, and the length of the ground wire 12 is greater than the length of the support pipe 1.
[0024] Specifically, the support pipe 1 can support the fixed pipe 13, and the lightning rod 11 can actively attract lightning current through the tip discharge effect and conduct the current to the ground through the ground wire 12 connected at the bottom, thereby preventing lightning from damaging the monitoring equipment. At the same time, by installing rubber gaskets 15 between adjacent flange structures and between the flange structure and the contact surface of the bolts and nuts, and inserting rubber tubes 14 into the openings of the flange structure, current paths cannot be formed between different areas through bolts and nuts, further preventing the conduction of current between the support structures and improving the lightning protection performance of the equipment.
[0025] A protective mechanism 2 is fixedly installed below the fixed pipe 13 to prevent foreign objects from affecting the operation of the monitoring device. The protective mechanism 2 includes a fixed frame 21 fixed to the outside of the fixed pipe 13. A frame 22 is fixedly installed at the bottom of the fixed frame 21. A metal canopy 23 is fixedly installed above the fixed frame 21. The fixed frame 21 is symmetrically installed on the left and right sides of the fixed frame 21 with the lower branch of the center of the fixed pipe 13 as the reference. The center of the metal canopy 23 is provided with an opening structure that fits into the fixed pipe 13. The metal canopy 23 is fixedly connected to the fixed pipe 13 through the frame 22, the fixed frame 21 and the fixed pipe 13.
[0026] Specifically, the metal canopy 23 is fixedly connected to the frame 21 via the skeleton 22. The frame 21 is located on both sides of the skeleton 22 and is fixedly connected to the fixed pipe 13 via the frame 22. This allows the metal canopy 23 to be positioned directly above the monitoring mechanism 3 below, preventing foreign objects from falling directly onto the monitoring mechanism 3 and affecting its operation. Furthermore, the metal canopy 23 has prismatic protrusions along its front-back, left-right, and central axes, and recessed structures along its diagonals. These structures guide rainwater to collect from the recessed areas along the diagonals and drain it at the four corners, preventing rainwater from forming a water curtain on the outer edge of the metal canopy 23 and affecting imaging.
[0027] A monitoring mechanism 3 is fixedly installed below the fixed pipe 13. The monitoring mechanism 3 includes a connecting pipe 31 fixed to the lower end of the fixed pipe 13. A ratchet 32 and a stepper motor 33 are fixedly installed inside the connecting pipe 31. A transmission frame 34 is inserted and installed on the outside of the shaft of the stepper motor 33. A camera 35 is movably installed below the connecting pipe 31. A pawl 36 is movably installed above the camera 35. A spring 37 is fixedly installed on the inner end of the pawl 36. Two ratchet 32s are stacked inside the connecting pipe 31, and the teeth of the upper and lower ratchet 32s are opposite. Columnar protrusions are provided on both sides of the bottom end of the transmission frame 34. The structure includes a rotating connection between the camera 35 and the connecting tube 31 via a bearing. A vertical protrusion is located at the center of the top of the camera 35, and grooves on both sides of the protrusion are provided to engage with the pawl 36. The pawl 36 is installed in the grooves on both sides of the top of the camera 35 in a mirror-symmetrical manner. A spring 37 connects the inner end of the pawl 36 to the vertical protrusion at the top of the camera 35. The pawls 36 on the left and right sides of the camera 35 are engaged with the ratchet wheels 32 on the upper and lower sides, respectively. A triangular prism structure with a mirror-symmetrical arrangement is provided above the pawl 36, and the inclined surface of the triangular prism contacts the columnar structure at the bottom of the transmission frame 34.
[0028] Specifically, the connecting pipe 31 can restrict the position of the stepper motor 33 and is connected to the fixed pipe 13 through the flange structure at the top. The stepper motor 33 can drive the transmission frame 34 to rotate. During the clockwise rotation of the transmission frame 34, the left columnar structure below the transmission frame 34 will contact the slope structure above the left pawl 36, and the tooth structure of the pawl 36 points in the opposite direction to the slope structure. Thus, when the transmission frame 34 rotates clockwise, it drives the left pawl 36 to move towards the center of rotation, so that the left pawl 36 does not engage with the upper ratchet 32. When the transmission frame 34 rotates counterclockwise, it will prevent the right pawl 36 from engaging with the lower ratchet 32. The spring 37 can keep the pawl 36 engaged with the ratchet 32 when there is no external force. In this way, the camera 35 can only be moved by the upper transmission frame 34. The rotational inertia of the lower camera 35 will be limited by the pawl 36 inside the slide. At the same time, the contents not described in detail in this specification are all prior art known to those skilled in the art.
[0029] During operation, the tip of the lightning rod 11 is higher than the fixed pipe 13. The lightning rod 11 can actively attract lightning current through the tip discharge effect and conduct the current to the ground through the ground wire 12 connected to the bottom, thereby preventing lightning from damaging the monitoring equipment. At the same time, by installing rubber gaskets 15 between adjacent flange structures and between the flange structure and the contact surface of the bolts and nuts, and inserting rubber tubes 14 into the openings of the flange structure, current paths cannot be formed between different areas through bolts and nuts, further preventing current conduction between the supporting structures and improving the lightning protection performance of the equipment. During the process of the transmission frame 34 being driven by the stepper motor 33 to rotate clockwise, the columnar structure on the lower left side of the transmission frame 34 will... The sloping structure above the left pawl 36 is in contact, and the toothed structure of the pawl 36 points in the opposite direction to the sloping structure. Thus, when the transmission frame 34 rotates clockwise, it drives the left pawl 36 to move towards the center of rotation, so that the left pawl 36 is not engaged with the upper ratchet 32. When the transmission frame 34 rotates counterclockwise, it will cause the right pawl 36 to be disengaged from the lower ratchet 32. The spring 37 can keep the pawl 36 engaged with the ratchet 32 when there is no external force. In this way, the camera 35 can only be moved by the upper transmission frame 34. The rotational inertia of the lower camera 35 will be limited by the pawl 36 inside the slide, preventing the inertia of the camera 35 from affecting the angle adjustment.
[0030] 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.
[0031] 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. A road monitoring device with a protective structure, comprising a support pipe (1), characterized in that: A lightning rod (11) is fixedly installed at the top of the support pipe (1), a ground wire (12) is fixedly installed at the bottom of the lightning rod (11), a fixed pipe (13) is fixedly installed above the support pipe (1), a rubber tube (14) is inserted into the flange structure opening below the fixed pipe (13), a rubber pad (15) is fixedly installed below the fixed pipe (13), a protective mechanism (2) is fixedly installed below the fixed pipe (13) to prevent foreign objects from affecting the operation of the monitoring device, and a monitoring mechanism (3) is fixedly installed below the fixed pipe (13). The monitoring mechanism (3) includes a connecting pipe (31) fixed to the lower end of the fixed pipe (13). A ratchet (32) and a stepper motor (33) are fixedly installed inside the connecting pipe (31). A transmission frame (34) is inserted and installed on the outside of the rotating shaft of the stepper motor (33). A camera (35) is movably installed below the connecting pipe (31). A pawl (36) is movably installed above the camera (35). A spring (37) is fixedly installed on the inner end of the pawl (36).
2. The road monitoring device with a protective structure according to claim 1, characterized in that: The lower half of the support tube (1) is a conical structure and has a plate-shaped protrusion on the outside. The ground wire (12) is located inside the cavity of the support tube (1). The top end of the ground wire (12) is fixedly connected to the bottom end of the lightning rod (11). The length of the ground wire (12) is greater than the length of the support tube (1).
3. A road monitoring device with a protective structure according to claim 1, characterized in that: The protective mechanism (2) includes a fixed frame (21) fixed to the outside of the fixed pipe (13), a frame (22) fixedly installed at the bottom of the fixed frame (21), and a metal canopy (23) fixedly installed above the fixed frame (21).
4. A road monitoring device with a protective structure according to claim 3, characterized in that: The fixing frame (21) is symmetrically installed on the left and right sides of the fixing frame (21) with the lower branch of the center of the fixing tube (13) as the reference. The center of the metal shed (23) is provided with an opening structure that fits into the fixing tube (13). The metal shed (23) is fixedly connected to the fixing tube (13) through the frame (22), the fixing frame (21) and the fixing tube (13).
5. A road monitoring device with a protective structure according to claim 1, characterized in that: The ratchet (32) has two stacked installations inside the connecting tube (31), and the teeth of the ratchet (32) on the upper and lower sides are opposite. The bottom of the transmission frame (34) is provided with columnar protrusions on both sides. The camera (35) is rotatably connected to the connecting tube (31) through a bearing. The top center of the camera (35) is provided with a vertical protrusion, and the sides of the protrusion are provided with sliding grooves that engage with the pawl (36).
6. A road monitoring device with a protective structure according to claim 1, characterized in that: The pawl (36) is mirror-symmetrically installed in the sliding grooves on both sides of the top of the camera (35). The spring (37) connects the inner end of the pawl (36) and the vertical protrusion at the top of the camera (35). The pawls (36) on the left and right sides of the camera (35) are respectively engaged with the ratchet (32) on the upper and lower sides. A symmetrical triangular prism structure is provided above the pawl (36), and the inclined surface of the triangular prism contacts the columnar structure at the bottom of the transmission frame (34).