An intelligent license plate integrated machine height-adjustable machine base structure
By adjusting the mechanism and the auxiliary light, the problem of recognition failure of the intelligent license plate integrated machine at different vehicle heights was solved, realizing automatic camera adjustment and normal recognition around the clock, improving traffic efficiency and equipment stability.
Patent Information
- Application Number
- CN202522323615.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-03
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-11-03
AI Technical Summary
The height of existing integrated smart license plate machines is not adjustable, which makes it impossible to recognize license plates at different vehicle heights, thus reducing traffic efficiency.
The system employs an adjustment mechanism, including components such as a first rotating rod, a second rotating rod, a swing plate, a rotating shaft, a slider, and a servo motor, to automatically adjust the height and angle of the license plate recognition camera. It is also equipped with a supplementary light to provide auxiliary illumination when there is insufficient light.
The system enables automatic adjustment of the height and angle of the license plate recognition camera, improving traffic efficiency, ensuring normal license plate recognition in all weather conditions, and enhancing the stability and lifespan of the equipment.
Smart Images

Figure CN224680499U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of machine bases, and in particular to an adjustable height machine base structure for an integrated intelligent license plate machine. Background Technology
[0002] The base is the basic support structure in mechanical equipment, used to fix and support the main components of the equipment, ensuring its stability and safety during operation.
[0003] The adjustable height base structure is a support device designed for intelligent license plate recognition integrated machines.
[0004] The existing adjustable height base structure of a smart license plate integrated machine has the following shortcomings: With social development and continuous technological progress, cars are becoming increasingly common. When parking and passing through gates, smart license plate integrated machines are needed. However, when using existing technology, the camera height is not automatically adjusted according to the height of the vehicle, which sometimes leads to the inability to recognize the license plate and reduces traffic efficiency. Utility Model Content
[0005] This invention can precisely drive the lifting plate to move up and down, thereby automatically adjusting the height of the license plate recognition camera and solving the problems mentioned in the background.
[0006] To achieve the above objectives, the present invention adopts the following technical solution: an adjustable height base structure for an intelligent license plate recognition device, comprising an adjustment mechanism, wherein a connecting mechanism is fixedly connected to the bottom of the adjustment mechanism; the adjustment mechanism includes a housing, wherein a first rotating rod is movably inserted into the bottom of the inner wall of the housing, a set of swing plates is fixedly connected to the outer wall of the first rotating rod, a set of rotating shafts is movably inserted into the inner wall of the swing plates, a set of sliders is slidably connected to the inner wall of the housing, a lifting plate is fixedly connected to the opposite side of the two sliders, a set of connecting blocks is fixedly connected to the bottom of the lifting plate, a second rotating rod is movably inserted into the inner wall of the connecting blocks, and a connecting plate is fixedly connected to the outer wall of each of the second rotating rods; through the above components, the height adjustment of the license plate recognition device mounted on the lifting plate is realized.
[0007] Preferably, a display screen is fixedly installed on the front of the housing, and a supplementary light is fixedly installed at the bottom of the front of the housing. The outer wall of the connecting plate is fixedly connected to the outer wall of the rotating shaft. The supplementary light can provide sufficient illumination for the license plate area in environments with insufficient light (such as at night or in rainy weather), making up for the lack of natural light, ensuring that the license plate recognition camera can clearly capture license plate information, avoiding a decrease in recognition accuracy due to light problems, and ensuring normal use of the equipment in all weather conditions. The display screen can display the license plate recognition results and vehicle traffic status in real time.
[0008] Preferably, a housing is fixedly connected to the reverse side of the box, and a first servo motor is fixedly installed on the inner wall of the housing. The output end of the first servo motor is fixedly connected to one end of the first rotating rod. The first servo motor can provide power for the rotation of the first rotating rod so that the subsequent lifting plate can be raised and lowered normally.
[0009] Preferably, a PLC controller is fixedly installed on the inner wall of the housing, and a set of nylon mesh is fixedly connected to the inner wall of the housing. The PLC controller, as the control mechanism of the equipment, can receive signals from the license plate recognition device and automatically control the start, stop and speed of the first servo motor and the second servo motor according to a preset program.
[0010] Preferably, a set of limiting rods is fixedly connected to the inner wall of the box. The outer wall of the limiting rods is slidably connected to the inner wall of the slider. The limiting rods provide a clear motion trajectory for the slider, which can effectively limit the horizontal displacement of the slider and ensure that the slider can only slide up and down along the axial direction of the limiting rods.
[0011] Preferably, a second servo motor is fixedly installed on the top of the lifting plate, and a third rotating rod is fixedly connected to the output end of the second servo motor. A connecting seat is fixedly connected to the top end face of the third rotating rod, and a license plate recognition camera is fixedly installed on the inner wall of the connecting seat. A sealing ring is fixedly connected to the top of the inner wall of the housing, and the outer wall of the sealing ring is slidably connected to the inner wall of the third rotating rod. The second servo motor can drive the third rotating rod to rotate, and then drive the license plate recognition camera to rotate through the connecting seat, thereby realizing the horizontal angle adjustment of the camera.
[0012] Preferably, the connecting mechanism includes a base plate, and the top of the base plate is threaded with fixing bolts, which can firmly fix the whole to the mounting surface, further enhancing the installation stability of the equipment.
[0013] Compared with the prior art, the advantages and positive effects of this utility model are as follows: 1. In this utility model, the adjustment mechanism, through the coordinated transmission of components such as the first rotating rod, the second rotating rod, the swing plate, the rotating shaft, and the connecting plate, combined with the stable power provided by the first servo motor, can precisely drive the lifting plate to move up and down, realizing the automatic adjustment of the license plate recognition camera height. This effectively avoids recognition failure caused by differences in vehicle height, significantly improving traffic efficiency. At the same time, the supplementary light equipped on the front of the housing can intelligently supplement the license plate area in low-light environments such as at night and in rainy weather, ensuring that the camera clearly captures license plate information. Coupled with the display screen that displays the recognition results and equipment status in real time, it further enhances the stable operation capability of the equipment under all-weather conditions and the human-machine information interaction experience.
[0014] 2. In this utility model, the cooperation between the limiting rod and the slider provides precise guidance for the lifting plate, effectively preventing deviation or shaking during the lifting process and ensuring the stability of the equipment operation. The housing effectively covers the first servo motor and PLC controller, and combined with the dustproof and ventilation functions of a set of nylon mesh, it can not only block the intrusion of dust and debris, but also ensure good heat dissipation of internal components and extend the service life of the equipment. The design of the sealing ring further prevents external moisture from entering the housing and avoids corrosion of key components. Attached Figure Description
[0015] Figure 1 This utility model provides a perspective view of the main structure of an adjustable height base for an intelligent license plate integrated machine. Figure 2 An enlarged perspective view of the box-connected structure in the adjustable height base structure of the intelligent license plate integrated machine is provided for this utility model. Figure 3 This utility model provides an enlarged perspective view of the lifting plate connection structure in the adjustable height base structure of an intelligent license plate integrated machine; Figure 4 An enlarged perspective view of the first rotating rod connected structure in the adjustable height base structure of the intelligent license plate integrated machine is provided for this utility model. Figure 5 An enlarged perspective view of the structure connected to the first servo motor in the adjustable height base structure of the intelligent license plate integrated machine is provided for this utility model. Figure 6 This utility model presents an enlarged perspective view of the structure connecting the base plate to the adjustable height base of an intelligent license plate integrated machine.
[0016] Legend: 1. Adjustment mechanism; 101. Housing; 102. Fill light; 103. Display screen; 104. License plate recognition camera; 105. Connecting seat; 106. Lifting plate; 107. Second servo motor; 108. Slider; 109. Third rotating rod; 110. Limiter; 111. Sealing ring; 112. Second rotating rod; 113. Connecting plate; 114. Connecting block; 115. First rotating rod; 116. Swing plate; 117. Rotating shaft; 118. Nylon mesh; 119. Housing; 120. First servo motor; 121. PLC controller; 2. Connection mechanism; 201. Base plate; 202. Fixing bolt. Detailed Implementation
[0017] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.
[0018] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.
[0019] Please see Figures 1-6 This utility model provides a technical solution: an adjustable height base structure for an intelligent license plate recognition machine, including an adjustment mechanism 1, with a connecting mechanism 2 fixedly connected to the bottom of the adjustment mechanism 1; the adjustment mechanism 1 includes a housing 101, a first rotating rod 115 is movably inserted into the bottom of the inner wall of the housing 101, a set of swing plates 116 is fixedly connected to the outer wall of the first rotating rod 115, a set of rotating shafts 117 is movably inserted into the inner wall of the swing plates 116, a set of sliders 108 is slidably connected to the inner wall of the housing 101, a lifting plate 106 is fixedly connected to the opposite side of the two sliders 108, a set of connecting blocks 114 is fixedly connected to the bottom of the lifting plate 106, a second rotating rod 112 is movably inserted into the inner wall of the connecting blocks 114, and connecting plates 113 are fixedly connected to the outer walls of the second rotating rods 112. Through the above components, the height adjustment of the license plate recognition device installed on the lifting plate 106 can be realized.
[0020] like Figure 2 and Figure 4 As shown, a display screen 103 is fixedly installed on the front of the housing 101, and a supplementary light 102 is fixedly installed on the bottom of the front of the housing 101. The outer wall of the connecting plate 113 is fixedly connected to the outer wall of the rotating shaft 117. The supplementary light 102 can provide sufficient illumination for the license plate area in environments with insufficient light (such as at night or in rainy weather), making up for the lack of natural light, ensuring that the license plate recognition camera 104 can clearly capture the license plate information, avoiding the decrease in recognition accuracy due to light problems, and ensuring the normal use of the equipment in all weather conditions. The display screen 103 can display the license plate recognition results and vehicle traffic status in real time.
[0021] like Figure 5 As shown, a housing 119 is fixedly connected to the reverse side of the housing 101. A first servo motor 120 is fixedly installed on the inner wall of the housing 119. The output end of the first servo motor 120 is fixedly connected to one end of the first rotating rod 115. The first servo motor 120 can provide power for the rotation of the first rotating rod 115 so that the subsequent lifting plate 106 can be raised and lowered normally.
[0022] like Figure 4 and Figure 5 As shown, a PLC controller 121 is fixedly installed on the inner wall of the housing 119, and a set of nylon mesh 118 is fixedly connected to the inner wall of the housing 119. The PLC controller 121 serves as the control mechanism of the equipment and can receive signals from the license plate recognition device and automatically control the start, stop and speed of the first servo motor 120 and the second servo motor 107 according to the preset program.
[0023] like Figure 3 As shown, a set of limiting rods 110 are fixedly connected to the inner wall of the housing 101. The outer wall of the limiting rods 110 is slidably connected to the inner wall of the slider 108. The limiting rods 110 provide a clear motion trajectory for the slider 108, which can effectively limit the horizontal displacement of the slider 108 and ensure that the slider 108 can only slide up and down along the axial direction of the limiting rods 110.
[0024] like Figure 2 and Figure 3 As shown, a second servo motor 107 is fixedly installed on the top of the lifting plate 106. A third rotating rod 109 is fixedly connected to the output end of the second servo motor 107. A connecting seat 105 is fixedly connected to the top end face of the third rotating rod 109. A license plate recognition camera 104 is fixedly installed on the inner wall of the connecting seat 105. A sealing ring 111 is fixedly connected to the top of the inner wall of the housing 101. The outer wall of the sealing ring 111 is slidably connected to the inner wall of the third rotating rod 109. The second servo motor 107 can drive the third rotating rod 109 to rotate, and then drive the license plate recognition camera 104 to rotate through the connecting seat 105, thereby realizing the horizontal angle adjustment of the camera.
[0025] like Figure 6 As shown, the connecting mechanism 2 includes a base plate 201, and a fixing bolt 202 is threaded through the top of the base plate 201. The fixing bolt 202 can firmly fix the whole to the mounting surface, further enhancing the installation stability of the equipment.
[0026] The usage and working principle of this device are as follows: When a vehicle enters the recognition area, the license plate recognition camera 104 first collects the vehicle information. If the height needs to be adjusted to fit the vehicle, the PLC controller 121 will receive the signal and send an instruction to the first servo motor 120 according to the preset program. After the first servo motor 120 starts, it drives the first rotating rod 115, which is fixedly connected to its output end, to rotate. The swing plate 116 on the outer wall of the first rotating rod 115 rotates synchronously, and then drives the connecting plate 113 to move through the rotating shaft 117 movably inserted into its inner wall. The connecting plate 113 is linked with the connecting block 114 at the bottom of the lifting plate 106 through the second rotating rod 112, pushing or pulling the lifting plate 106 to achieve lifting movement. At the same time, the sliders 108 fixed on both sides of the lifting plate 106 move along the limiting rod 110. The downward sliding mechanism ensures that the lifting plate 106 always moves smoothly in the vertical direction, thereby achieving automatic height adjustment of the license plate recognition camera 104. If the horizontal angle of the camera needs to be adjusted, the PLC controller 121 will send a command to the second servo motor 107. The second servo motor 107 drives the third rotating rod 109 to rotate, and the connecting seat 105 at the top of the third rotating rod 109 rotates accordingly, thereby completing the horizontal angle adjustment of the license plate recognition camera 104. In environments with insufficient light (such as at night or in rainy weather), the supplementary light 102 is turned on to provide auxiliary lighting for the license plate area, ensuring that the camera can clearly capture the license plate information. The recognition results and equipment operating status are displayed in real time on the display screen 103 on the front of the housing 101, improving the efficiency of information interaction.
[0027] The PLC controller 121, the first servo motor 120, the second servo motor 107, the display screen 103, the supplementary light 102, and the license plate recognition camera 104 used in this application are all common conventional equipment on the market and are well known to those skilled in the art. In this application, the above-mentioned equipment is used in a conventional manner without any improvement to its structure and function. Regarding their settings, installation, and electrical connection methods, those skilled in the art can debug and operate them according to the corresponding product instruction manuals, so they will not be described in detail here.
[0028] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.
Claims
1. An adjustable height base structure for an intelligent license plate integrated machine, characterized in that, It includes an adjustment mechanism (1), and a connecting mechanism (2) is fixedly connected to the bottom of the adjustment mechanism (1); The adjustment mechanism (1) includes a housing (101). A first rotating rod (115) is movably inserted into the bottom of the inner wall of the housing (101). A set of swing plates (116) is fixedly connected to the outer wall of the first rotating rod (115). A set of rotating shafts (117) is movably inserted into the inner wall of the swing plates (116). A set of sliders (108) is slidably connected to the inner wall of the housing (101). A lifting plate (106) is fixedly connected to the opposite side of the two sliders (108). A set of connecting blocks (114) is fixedly connected to the bottom of the lifting plate (106). A second rotating rod (112) is movably inserted into the inner wall of the connecting block (114). A connecting plate (113) is fixedly connected to the outer wall of the second rotating rod (112).
2. The adjustable height base structure of the intelligent license plate integrated machine according to claim 1, characterized in that: A display screen (103) is fixedly installed on the front of the housing (101), a fill light (102) is fixedly installed on the bottom of the front of the housing (101), and the outer wall of the connecting plate (113) is fixedly connected to the outer wall of the rotating shaft (117).
3. The adjustable height base structure of the intelligent license plate integrated machine according to claim 1, characterized in that: The back of the housing (101) is fixedly connected to a shell (119), and a first servo motor (120) is fixedly installed on the inner wall of the shell (119). The output end of the first servo motor (120) is fixedly connected to one end of the first rotating rod (115).
4. The adjustable height base structure of the intelligent license plate integrated machine according to claim 3, characterized in that: A PLC controller (121) is fixedly installed on the inner wall of the housing (119), and a set of nylon mesh (118) is fixedly connected to the inner wall of the housing (119).
5. The adjustable height base structure of the intelligent license plate integrated machine according to claim 1, characterized in that: A set of limiting rods (110) are fixedly connected to the inner wall of the box (101), and the outer wall of the limiting rods (110) is slidably connected to the inner wall of the slider (108).
6. The adjustable height base structure of the intelligent license plate integrated machine according to claim 1, characterized in that: A second servo motor (107) is fixedly installed on the top of the lifting plate (106). A third rotating rod (109) is fixedly connected to the output end of the second servo motor (107). A connecting seat (105) is fixedly connected to the top end face of the third rotating rod (109). A license plate recognition camera (104) is fixedly installed on the inner wall of the connecting seat (105). A sealing ring (111) is fixedly connected to the top of the inner wall of the box (101). The outer wall of the sealing ring (111) is slidably connected to the inner wall of the third rotating rod (109).
7. The adjustable height base structure of the intelligent license plate integrated machine according to claim 1, characterized in that: The connecting mechanism (2) includes a base plate (201), and a fixing bolt (202) is threaded through the top of the base plate (201).