A highway height limit alarm device using the infrared laser beam principle
By adopting infrared laser emission principle and adjustable beam design in the highway height limit alarm device, the problem of vehicle micro-overlimit stuck in the existing device is solved, and the impact risk is reduced through the buffer device, achieving accurate adjustment of height limit height and safe passage of vehicles.
Patent Information
- Application Number
- CN202421282994.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-05
- Publication Date
- 2025-04-01
- Estimated Expiration
- 2034-06-05
AI Technical Summary
The existing height limit alarm device has the problem that the vehicle's micro-overlimit stuck in the middle beam of the height limit device due to driver errors in judgment, and some devices are inconvenient to adjust the height limit.
The highway height limit alarm device using infrared laser emission principle is used to achieve adjustability of the beam height by combining support components and height limit components, and bent rods and springs with buffer plates are installed on the side walls of the beam to buffer the impact of over-limit vehicles.
Accurate adjustment of height limit height is achieved, avoiding the situation where the vehicle is stuck in the device due to errors in judgment, and reducing the risk of over-limited vehicles through the buffer device to ensure safe passage of the vehicle.
Smart Images
Figure CN222700859U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of height limit alarm devices, in particular to a highway height limit alarm device utilizing the infrared laser irradiation principle. Background Art
[0002] The height limit collision avoidance warning system refers to an active vehicle safety system that uses professional perception sensors to detect visible height limit targets (such as height limit poles, bridges and tunnels, roadside signs, billboards, tree trunks, etc.) within the vehicle's front viewing range in real time. If the height limit target is lower than the roof height, it will provide audible and visual warnings when there is a risk of collision.
[0003] With the continuous improvement of urbanization rate, the continuous changes and development of urban and urban agglomeration three-dimensional transportation, there are more and more overpasses, elevated roads, tunnels, underground and three-dimensional parking lots, and there are more and more medium and large vehicles such as RVs, muck trucks, concrete mixers, fire trucks, etc. It can often be seen that there are some height limit devices in urban roads, residential areas and highways. In addition to the temporary height limits brought by urban construction and greening, these height limit devices play a good protective role for related facilities, but traffic accidents caused by height limit devices are also very common, and some accidents cause heavy casualties and property losses. These accidents are often caused by the driver's fluke mentality, thinking that the vehicle can almost pass at the specified height, hitting the height limit device, and it is easy to get stuck in the middle of the beam of the height limit device, or the prediction error is large and it will directly hit the height limit beam. In addition to causing casualties and property losses, such accidents also bring bad social impacts, and some height limit devices are fixed heights, which are not convenient to adjust and cannot adapt well to different road height limits.
[0004] Therefore, those skilled in the art provide a highway height limit alarm device using the infrared laser radiation principle to solve the problems raised in the above background technology. Utility Model Content
[0005] The technical problem to be solved by the utility model is that in the prior art, some slightly over-limit vehicles are easily stuck in the middle crossbeam of the height limit alarm device due to the driver's misjudgment, and some height limit alarm devices are inconvenient to adjust the height limit. For this reason, we propose a highway height limit alarm device using the principle of infrared laser emission.
[0006] The technical solution adopted by the utility model to solve the technical problem is: a highway height limit alarm device using the infrared laser beam principle, including a support assembly and a height limit assembly, the support assembly includes a column, a base and a main beam, the column is fixedly connected to the upper end of the base by bolts, and the main beam is installed on the top of the column;
[0007] The effect achieved by the above components is: adding a height limit alarm device composed of a support assembly and a height limit assembly, the support assembly is used to cooperate with the support height limit assembly, maintain the stability of the height of the height limit assembly, and limit the height of the road, wherein the base is used to cooperate with the column to install the main beam, maintain the stability of the support assembly structure, and the main beam and the side wall of the height limit assembly can be installed with lighting, monitoring and warning signs and other components, which is convenient for the driver to understand the height limit information and issue early warning prompts for over-limit vehicles, thereby ensuring the safe passage of vehicles.
[0008] The height limiting assembly includes a crossbeam, a sliding member, a mounting column and a sensor, the sliding member is slidably mounted on the side wall of the column, the crossbeam is located in the middle position of the column, and the end of the crossbeam is fixedly connected to the side wall of the sliding member, the mounting column is fixedly mounted on one side of the base, the sensor is connected to the upper side wall of the mounting column by bolts, a baffle is welded on the side wall of the sliding member, a connecting rod located on one side of the baffle is slidably mounted on the inner side wall of the column, and the side wall of the connecting rod is connected to the limiting plate by bolts.
[0009] The effect achieved by the above components is: adding a height limit component consisting of a crossbeam, a sliding part, a mounting column and a sensor, which is used to limit the height and provide early warning alarms for the road. The mounting column is used to cooperate with the installation of the sensor to maintain the stability of the sensor position. The sensor can be connected to an external alarm device and a control device as needed, and a screen and other equipment can be added to display the height limit information, so that the vehicle driver can understand the height limit information in time and avoid the height limit device in advance. The crossbeam is installed on the side wall of the column through a sliding part. The position of the sliding part is adjusted along the column to change the height of the crossbeam to adapt to the height limit warning use of different roads. A connecting rod assembly with a limiting plate is installed inside the column. The position of the connecting rod is adjusted along the column to adjust the height of the limiting plate. The baffle installed on the side wall of the sliding part is used to limit the moving height of the crossbeam to ensure the accuracy of the height limit.
[0010] Preferably, a motor is fixedly installed inside the column, the main shaft end of the motor is connected to a screw rod through a coupling, the upper end of the screw rod is threadedly connected to the central threaded hole of the sliding member, and the top of the screw rod is rotatably connected to the top of the column through a bearing.
[0011] The effect achieved by the above components is: a motor with a screw is installed inside the column, and when the power of the motor is turned on, the motor will drive the screw to rotate, and then drive the sliding part to slide along the side wall of the column to adjust the position to adapt to different height limits.
[0012] Preferably, the side wall of the baffle is connected with a contact switch by bolts, and two contact switches are provided, respectively arranged at the top and bottom of the baffle, and the connecting rod and the limit plate are arranged into two matching groups, one group of the limit plates is located above the baffle, and the other group of the limit plates is located below the baffle.
[0013] The effect achieved by the above-mentioned components is: two sets of contact switches are installed on the side wall of the baffle. When the crossbeam component needs to be moved upward to increase the height limit, the position of the limit plate above the baffle is adjusted upward. When the crossbeam rises, it will drive the baffle installed on the side wall of the sliding part to rise. When the contact switch above the baffle contacts the upper limit plate, the power supply of the motor assembly will be disconnected through the contact switch, so that the crossbeam component stops at the specified height. When the crossbeam needs to be moved downward to adjust the height limit, the limit plate under the baffle can be adjusted. It is easy to adjust.
[0014] Preferably, a tension spring is clamped at the bottom of the connecting rod, and the lower end of the tension spring is fixedly connected to the inner wall of the column by bolts, and a handle is connected to one side of the lower end of the connecting rod by bolts, and a slot structure matching the handle is provided on the side wall of the lower end of the column, and the end of the handle is clamped in the slot of the side wall of the column.
[0015] The effect achieved by the above components is: a tension spring is installed at the bottom of the connecting rod, and the two ends of the tension spring are respectively connected to the column and the connecting rod. When the connecting rod is pulled by the handle, the connecting rod will drive the tension spring to move and produce a certain amount of deformation. When the handle is clamped in the middle of the slot on the side wall of the column, the tension spring is in a deformed state and will maintain the handle clamped in the middle of the slot on the side wall of the column, preventing the connecting rod with the handle installed from loosening and ensuring the stability of the height limit adjustment.
[0016] Preferably, the outer side wall of the column is connected with a scale plate by bolts, and the scale lines of the scale plate are flush with the side wall of the handle.
[0017] The effect achieved by the above components is: a scale plate is installed on the side wall of the column to cooperate with the handle, so that the handle assembly can be moved along the slot corresponding to the scale on the scale plate to adjust the limited height of the height limit alarm device. A cover plate-like component can also be added to protect the handle to prevent non-professionals from operating the height limit alarm device.
[0018] Preferably, a bent rod is inserted into the side wall at the end of the beam, one end of the bent rod passes through the side wall of the beam, and the end of the bent rod is connected to a buffer plate located outside the beam by bolts, the bottom of the buffer plate is flush with the bottom of the beam, and a spring is connected to one side in the middle of the bent rod by bolts, and the other end of the spring is fixedly connected to the inner wall of the beam.
[0019] The effect achieved by the above components is: a bent rod with a buffer plate is installed on the side wall of the beam, and a spring is installed inside the beam to connect the bent rod. When there is no external force, the spring is in a relaxed state, maintaining a certain gap position between the buffer plate installed at the end of the bent rod and the beam. When an overloaded vehicle passes through the height limit alarm device, the top of the vehicle will first contact the buffer plate, and then be buffered by the bent rod with a spring, so as to avoid the vehicle directly hitting the beam assembly of the height limit alarm device, so that the driver can detect the vehicle condition in time and take evasive measures.
[0020] Preferably, an extension plate is inserted at the bottom of the beam, the side wall of the extension plate is provided with a step edge structure matching the inner wall of the beam, and the middle side wall of the extension plate is provided with a through hole structure matching the other end of the bent rod, and the other end of the bent rod is provided with a slope structure matching the through hole of the side wall of the extension plate.
[0021] The effect achieved by the above components is: by adding an extension plate assembly at the bottom of the beam, when the buffer plate component installed on the side wall of the beam is hit by a punch, the buffer plate will preferentially drive the bent rod to move inward. At this time, the other end of the bent rod will move out from the side wall of the extension plate and no longer cooperate with the beam to clamp the extension plate. The extension plate will extend from the bottom of the beam under the action of gravity, expand the thickness of the beam, and limit the height of the top area of the vehicle to prevent the vehicle from being stuck in the bottom of the beam along the top inclined surface, preventing over-height vehicles from passing. After use, push the extension plate upward, and the upper end of the extension plate will apply force along the inclined surface of the end of the bent rod to drive the bent rod to move. At this time, the spring will be compressed until the end of the bent rod is docked with the through hole of the side wall of the extension plate. The spring will release the elastic potential energy generated by the compression, push the end of the bent rod into the through hole of the side wall of the extension plate, and cooperate with the crossbeam to clamp the extension plate to maintain the stability of the position of the extension plate for the next use.
[0022] The beneficial effects of the utility model are:
[0023] In the utility model, by adjusting the position of the sliding part along the column, the height of the beam can be changed to adapt to the height limit warning use of different roads, and a connecting rod assembly with a limiting plate is installed inside the column. By adjusting the position of the connecting rod along the column, the height of the limiting plate can be adjusted, and the baffle installed on the side wall of the sliding part is cooperated to limit the moving height of the beam to ensure the accuracy of the height limit; a tension spring is installed at the bottom of the connecting rod, and the two ends of the tension spring are respectively connected to the column and the connecting rod. When the connecting rod is pulled by the handle, the connecting rod will drive the tension spring to move and produce a certain amount of deformation. When the handle is clamped in the middle of the slot on the side wall of the column, the tension spring is in a deformed state at this time, and the handle will be clamped in the middle of the slot on the side wall of the column to prevent the connecting rod with the handle from loosening, thereby ensuring the stability of the height limit adjustment height.
[0024] In the utility model, a bent rod with a buffer plate is installed on the side wall of the cross beam, and a spring is installed inside the cross beam to connect with the bent rod. When there is no external force, the spring is in a relaxed state, maintaining a certain gap position between the buffer plate installed at the end of the bent rod and the cross beam. When an over-limit vehicle passes the height limit alarm device, the top of the vehicle will first contact the buffer plate, and will be buffered by the bent rod with the spring, so as to avoid the vehicle directly hitting the cross beam component of the height limit alarm device, so that the driver can discover the vehicle condition in time and take evasive measures; by adding an extension plate component at the bottom of the cross beam, when the buffer plate component installed on the side wall of the cross beam is hit by a punching card, the buffer plate will first drive the bent rod to move inwards The extension plate will extend from the bottom of the crossbeam under the action of gravity, expand the thickness of the crossbeam, and limit the height of the top area of the vehicle to prevent the vehicle from being stuck in the bottom of the crossbeam along the top inclined surface, thereby preventing over-height vehicles from passing through. After use, push the extension plate upward, and the upper end of the extension plate will apply force along the inclined surface of the end of the bent rod to drive the bent rod to move. At this time, the spring will be compressed until the end of the bent rod is docked with the through hole of the side wall of the extension plate. The spring will release the elastic potential energy generated by the compression, push the end of the bent rod into the through hole of the side wall of the extension plate, and cooperate with the crossbeam to clamp the extension plate, thereby maintaining the stability of the position of the extension plate and facilitating the next use. BRIEF DESCRIPTION OF THE DRAWINGS
[0025] Figure 1 This is one of the three-dimensional structural schematic diagrams of the utility model;
[0026] Figure 2 This is the second schematic diagram of the three-dimensional structure of the utility model;
[0027] Figure 3 It is a left side structural schematic diagram of the utility model;
[0028] Figure 4 It is a schematic diagram of the top view structure of the utility model;
[0029] Figure 5 It is a schematic diagram of the cross-sectional structure of the utility model at AA;
[0030] Figure 6 It is a schematic diagram of the cross-sectional structure at BB of the utility model;
[0031] Figure 7 It is a schematic diagram of the cross-sectional structure of the utility model at CC.
[0032] Legend: 100, support assembly; 101, column; 102, base; 103, main beam; 104, connecting rod; 105, limit plate; 106, motor; 107, screw rod; 108, tension spring; 109, handle; 110, scale plate; 200, height limit assembly; 201, crossbeam; 202, sliding part; 203, mounting column; 204, sensor; 205, baffle; 206, contact switch; 207, bending rod; 208, buffer plate; 209, spring; 210, extension plate. DETAILED DESCRIPTION
[0033] The present invention will now be further described in detail in conjunction with the accompanying drawings and preferred embodiments. These drawings are simplified schematic diagrams that only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.
[0034] Reference Figure 1-7 As shown, the utility model provides a technical solution: a highway height limit alarm device using the principle of infrared laser counter-radiation, including a support component 100 and a height limit component 200, the support component 100 includes a column 101, a base 102 and a main beam 103, the column 101 is fixedly connected to the upper end of the base 102 by bolts, and the main beam 103 is installed on the top of the column 101. Specifically, a height limit alarm device composed of the support component 100 and the height limit component 200 is added, the support component 100 is used to cooperate with the support height limit component 200 to maintain the height stability of the height of the height limit component 200 and limit the height of the road, wherein the base 102 is used to cooperate with the column 101 to install the main beam 103 to maintain the stability of the structure of the support component 100, and the side walls of the main beam 103 and the height limit component 200 can be installed with lighting, monitoring and warning signs and other components, which are convenient for drivers to understand the height limit information and issue early warning prompts to over-limit vehicles to ensure safe passage of vehicles.
[0035] The height limiting assembly 200 includes a crossbeam 201, a sliding member 202, a mounting column 203 and a sensor 204. The sliding member 202 is slidably mounted on the side wall of the column 101. The crossbeam 201 is located in the middle of the column 101, and the end of the crossbeam 201 is fixedly connected to the side wall of the sliding member 202. The mounting column 203 is fixedly mounted on one side of the base 102. The sensor 204 is connected to the upper side wall of the mounting column 203 by bolts. A baffle 205 is welded to the side wall of the sliding member 202. A connecting rod 104 located on one side of the baffle 205 is slidably mounted on the inner side wall of the column 101. The side wall of the connecting rod 104 is connected to the limiting plate 105 by bolts. Specifically, a height limiting component 200 consisting of a crossbeam 201, a sliding member 202, a mounting column 203 and a sensor 204 is added to limit the height of the road and provide early warning alarms. The mounting column 203 is used to cooperate with the installation of the sensor 204 to maintain the stability of the position of the sensor 204. Using the infrared laser beam principle, mounting columns 203 with a height of 5-6 meters are respectively set up on both sides of the lane 5 meters in front of the entrance of the toll station's overload control scale. Reflective film and other signs can be posted on the mounting columns 203 as needed, and the sensor 204 and other accessories of the fixed infrared laser device are installed, and the mounting columns are arranged according to the truck load. The over-limit standard is adjusted and installed at a high level, the power line is accurately positioned and fixed, the power used by other equipment in the toll island is converted into a low-voltage power supply and connected to the equipment and alarm device. The alarm device can be extended to the over-limit control booth. When the toll collector and field staff encounter an over-height truck at work, the infrared ray is disconnected and the device automatically alarms. The staff and the driver can find it immediately and persuade the driver to return on the spot. This not only improves work efficiency but also provides safety for the staff. At the same time, it plays a certain protective role on bridges of a certain height on the highway, high-span bridges, various pipeline equipment and other facilities, and protects vehicles and passengers who need to pass through. It also plays a protective role in property, and the surrounding safety hazards can be discovered and resolved in time. The beam 201 is installed on the side wall of the column 101 through the sliding member 202. The position of the sliding member 202 is adjusted along the column 101, and the height of the beam 201 can be changed to adapt to the height limit warning use of different roads. A connecting rod 104 assembly with a limiting plate 105 is installed inside the column 101. The position of the connecting rod 104 is adjusted along the column 101, and the height of the limiting plate 105 can be adjusted. The baffle 205 installed on the side wall of the sliding member 202 is used to limit the moving height of the beam 201 to ensure the accuracy of the height limit.
[0036] Reference Figure 6As shown, a motor 106 is fixedly installed inside the column 101, and a screw rod 107 is connected to the main shaft end of the motor 106 through a coupling. The upper end of the screw rod 107 is threadedly connected to the central threaded hole of the sliding member 202, and the top of the screw rod 107 is rotatably connected to the top of the column 101 through a bearing. Specifically, a motor 106 with a screw rod 107 is installed inside the column 101. When the power of the motor 106 is turned on, the motor 106 will drive the screw rod 107 to rotate, thereby driving the sliding member 202 to slide along the side wall of the column 101 to adjust its position to adapt to different height limits.
[0037] Reference Figure 6 As shown, the side wall of the baffle 205 is connected with a contact switch 206 by bolts, and two contact switches 206 are provided, which are respectively arranged at the top and bottom of the baffle 205. The connecting rod 104 and the limit plate 105 are arranged as two matching groups, one group of limit plates 105 is located above the baffle 205, and the other group of limit plates 105 is located below the baffle 205. Specifically, two groups of contact switches 206 are installed on the side wall of the baffle 205. When it is necessary to move the crossbeam 201 upward to increase the height limit, Adjust the position of the limit plate 105 above the baffle 205. When the beam 201 rises, the baffle 205 installed on the side wall of the sliding member 202 will be driven to rise. When the contact switch 206 above the baffle 205 contacts the upper limit plate 105, the power supply of the motor 106 assembly will be disconnected through the contact switch 206, so that the beam 201 component stops at the specified height. When the beam 201 needs to be moved down to adjust the height limit, just adjust the limit plate 105 below the baffle 205, which is convenient for adjustment.
[0038] Reference Figure 6 As shown, a tension spring 108 is clamped at the bottom of the connecting rod 104, and the lower end of the tension spring 108 is fixedly connected to the inner wall of the column 101 by bolts, and a handle 109 is connected to one side of the lower end of the connecting rod 104 by bolts. A slot structure matching the handle 109 is opened on the lower side wall of the column 101, and the end of the handle 109 is clamped in the slot of the side wall of the column 101. Specifically, a tension spring 108 is installed at the bottom of the connecting rod 104, and the two ends of the tension spring 108 are respectively connected to the column 101 and the connecting rod 104. When the connecting rod 104 is pulled by the handle 109, the connecting rod 104 will drive the tension spring 108 to move and produce a certain deformation amount. When the handle 109 is clamped in the middle of the slot on the side wall of the column 101, the tension spring 108 is in a deformed state, which will maintain the handle 109 clamped in the middle of the slot on the side wall of the column 101, prevent the connecting rod 104 equipped with the handle 109 from loosening, and ensure the stability of the height limit adjustment height.
[0039] Reference Figure 1 and Figure 5As shown, the outer wall of the column 101 is connected to a scale plate 110 by bolts, and the scale lines of the scale plate 110 are flush with the side wall of the handle 109. Specifically, the scale plate 110 is installed on the side wall of the column 101 to cooperate with the handle 109, so that the handle 109 assembly can be moved along the slot corresponding to the scale on the scale plate 110 to adjust the limited height of the height limit alarm device. A cover plate-like component can also be added to protect the handle 109 to prevent non-professionals from operating the height limit alarm device.
[0040] Reference Figure 7 As shown, a bent rod 207 is inserted into the side wall of the end of the beam 201, one end of the bent rod 207 passes through the side wall of the beam 201, and the end of the bent rod 207 is connected to a buffer plate 208 located outside the beam 201 by bolts, the bottom of the buffer plate 208 is flush with the bottom of the beam 201, and a spring 209 is connected to one side of the middle of the bent rod 207 by bolts, and the other end of the spring 209 is fixedly connected to the inner wall of the beam 201. Specifically, the bent rod 207 with the buffer plate 208 is installed on the side wall of the beam 201, and at the same time, the inside of the beam 201 A spring 209 is installed and connected to the bent rod 207. When there is no external force, the spring 209 is in a relaxed state, maintaining a certain gap between the buffer plate 208 installed at the end of the bent rod 207 and the crossbeam 201. When an overloaded vehicle passes through the height limit alarm device, the top of the vehicle will first contact the buffer plate 208, and then be buffered by the bent rod 207 with the spring 209, so as to prevent the vehicle from directly hitting the crossbeam 201 component of the height limit alarm device, so that the driver can timely discover the vehicle condition and take evasive measures.
[0041] Reference Figure 6 and Figure 7As shown, an extension plate 210 is inserted at the bottom of the beam 201, and a side wall of the extension plate 210 is provided with a step edge structure matching the inner wall of the beam 201, and a through hole structure matching the other end of the bent rod 207 is provided on the middle side wall of the extension plate 210, and an inclined surface structure matching the through hole of the side wall of the extension plate 210 is provided on the other end of the bent rod 207. Specifically, by adding an extension plate 210 component to the bottom of the beam 201, when the buffer plate 208 component installed on the side wall of the beam 201 is hit by a punch, the buffer plate 208 will preferentially drive the bent rod 207 to move inward, and at this time, the other end of the bent rod 207 will move out from the side wall of the extension plate 210, and no longer cooperate with the beam 201 to clamp the extension plate 210, and the extension plate 210 Under the action of gravity, it will extend from the bottom of the beam 201, expand the thickness of the beam 201, limit the height of the top area of the vehicle, prevent the vehicle from being stuck along the top slope into the bottom of the beam 201, and prevent over-height vehicles from passing. After use, push the extension plate 210 upward, and the upper end of the extension plate 210 will apply force along the slope of the end of the bent rod 207 to drive the bent rod 207 to move. At this time, the spring 209 will be compressed until the end of the bent rod 207 is docked with the through hole in the side wall of the extension plate 210. The spring 209 will release the elastic potential energy generated by the compression, push the end of the bent rod 207 into the through hole in the side wall of the extension plate 210, and cooperate with the beam 201 to clamp the extension plate 210, maintain the stability of the position of the extension plate 210, and facilitate the next use.
[0042] Working principle: a bent rod 207 with a buffer plate 208 is installed on the side wall of the cross beam 201, and a spring 209 is installed inside the cross beam 201 to connect with the bent rod 207. When there is no external force, the spring 209 is in a relaxed state, maintaining a certain gap between the buffer plate 208 installed at the end of the bent rod 207 and the cross beam 201. When an overloaded vehicle passes through the height limit alarm device, the top of the vehicle will first contact the buffer plate 208, and will be buffered by the bent rod 207 with the spring 209 to prevent the vehicle from directly hitting the cross beam 201 component of the height limit alarm device, so that the driver can discover the vehicle condition in time and avoid it. When the buffer plate 208 component installed on the side wall of the cross beam 201 is hit by a punch, the buffer plate 208 will first drive the bent rod 207 to move inward. At this time, the other end of the bent rod 207 will move from The side wall of the extension plate 210 moves out and no longer cooperates with the cross beam 201 to clamp the extension plate 210. The extension plate 210 will extend from the bottom of the cross beam 201 under the action of gravity, expand the thickness of the cross beam 201, and limit the height of the top area of the vehicle to prevent the vehicle from being stuck in the bottom of the cross beam 201 along the top inclined surface, thereby preventing over-height vehicles from passing. After use, push the extension plate 210 upward, and the upper end of the extension plate 210 will apply force along the inclined surface of the end of the bent rod 207 to drive the bent rod 207 to move. At this time, the spring 209 will be compressed until the end of the bent rod 207 is docked with the through hole of the side wall of the extension plate 210. The spring 209 will release the elastic potential energy generated by the compression, push the end of the bent rod 207 into the through hole of the side wall of the extension plate 210, and cooperate with the cross beam 201 to clamp the extension plate 210, thereby maintaining the stability of the position of the extension plate 210 and facilitating the next use.
[0043] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood by specific circumstances;
[0044] The above description only describes the specific implementation methods of the utility model. Various examples do not limit the essential content of the utility model. Ordinary technicians in the relevant technical field can modify or deform the specific implementation methods described above after reading the description without departing from the essence and scope of the utility model.
Claims
1. A highway height limit alarm device using the infrared laser beaming principle, comprising a support assembly (100) and a height limit assembly (200), characterized in that: The support assembly (100) comprises a column (101), a base (102) and a main beam (103); the column (101) is fixedly connected to the upper end of the base (102) by bolts, and the main beam (103) is installed on the top of the column (101); The height limiting component (200) comprises a crossbeam (201), a sliding member (202), a mounting column (203) and a sensor (204); the sliding member (202) is slidably mounted on the side wall of the column (101); the crossbeam (201) is located in the middle of the column (101), and the end of the crossbeam (201) is fixedly connected to the side wall of the sliding member (202); the mounting column (203) is fixedly mounted on one side of the base (102); the sensor (204) is connected to the upper side wall of the mounting column (203) by bolts; a baffle (205) is welded to the side wall of the sliding member (202); a connecting rod (104) located on one side of the baffle (205) is slidably mounted on the inner side wall of the column (101); and the side wall of the connecting rod (104) is connected to the limiting plate (105) by bolts.
2. The highway height limit alarm device using the infrared laser beaming principle according to claim 1 is characterized in that: A motor (106) is fixedly installed inside the column (101); a main shaft end of the motor (106) is connected to a screw rod (107) via a coupling; an upper end of the screw rod (107) is threadedly connected to a central threaded hole of the sliding member (202); and a top of the screw rod (107) is rotatably connected to an inner top of the column (101) via a bearing.
3. The highway height limit alarm device using the infrared laser beaming principle according to claim 2 is characterized in that: The side wall of the baffle (205) is connected with a contact switch (206) by bolts. Two contact switches (206) are provided, which are respectively arranged at the top and bottom of the baffle (205). The connecting rod (104) and the limit plate (105) are arranged in two matching groups, one group of the limit plates (105) is located above the baffle (205), and the other group of the limit plates (105) is located below the baffle (205).
4. The highway height limit alarm device using the infrared laser beaming principle according to claim 1 is characterized in that: A tension spring (108) is clamped at the bottom of the connecting rod (104), and the lower end of the tension spring (108) is fixedly connected to the inner wall of the column (101) by bolts, and a handle (109) is connected to one side of the lower end of the connecting rod (104) by bolts, and a slot structure matching the handle (109) is provided on the lower side wall of the column (101), and the end of the handle (109) is clamped in the slot of the side wall of the column (101).
5. The highway height limit alarm device using the infrared laser beaming principle according to claim 4 is characterized in that: The outer side wall of the column (101) is connected to a scale plate (110) via bolts, and the scale line of the scale plate (110) is flush with the side wall of the handle (109).
6. The highway height limit alarm device using the infrared laser beaming principle according to claim 1 is characterized in that: A bent rod (207) is inserted into the side wall of the end of the cross beam (201), one end of the bent rod (207) passes through the side wall of the cross beam (201), and the end of the bent rod (207) is connected to a buffer plate (208) located outside the cross beam (201) by bolts, the bottom of the buffer plate (208) is flush with the bottom of the cross beam (201), and a spring (209) is connected to one side of the middle of the bent rod (207) by bolts, and the other end of the spring (209) is fixedly connected to the inner wall of the cross beam (201).
7. The highway height limit alarm device using the infrared laser beaming principle according to claim 6 is characterized by: An extension plate (210) is inserted at the bottom of the cross beam (201); a side wall of the extension plate (210) is provided with a step edge structure matching the inner wall of the cross beam (201); a middle side wall of the extension plate (210) is provided with a through hole structure matching the other end of the bent rod (207); and the other end of the bent rod (207) is provided with an inclined surface structure matching the through hole of the side wall of the extension plate (210).