Fast-assembly highway toll collection device based on 5G technology
By using a 5G-based quick-installation highway toll collection device, which combines a squeeze triggering device with a speed bump airbag, rapid vehicle deceleration control and information scanning are achieved. This solves the traffic congestion problem of highway toll collection devices during special periods and improves the flexibility and adaptability of the device.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-17
- Publication Date
- 2026-03-03
AI Technical Summary
Existing highway toll collection devices are prone to causing traffic congestion when faced with extremely high traffic volumes during special periods, as they cannot be quickly installed or removed, leading to increased traffic pressure.
A fast-installation high-speed toll collection device based on 5G technology was designed. By combining the squeeze triggering device with the speed bump airbag, rapid inflation and deflation can be achieved. Combined with the flexible placement of the scanning display device, the applicability and adaptability are improved.
It enables rapid vehicle deceleration control and information scanning, improves the flexibility and adaptability of the device, reduces traffic congestion, and allows for rapid installation and disassembly to adapt to different traffic flow conditions.
Smart Images

Figure CN223963851U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of intelligent transportation technology, specifically referring to a fast-installation high-speed toll collection device based on 5G technology. Background Technology
[0002] Traffic pressure increases significantly with the number of vehicles. In order to alleviate the increasingly severe traffic pressure, improve transportation efficiency, recover the investment in highway sections, achieve fair use, increase road utilization, reduce traffic congestion, and achieve safe and effective traffic diversion and guidance.
[0003] Normally, the traffic flow design of highway sections is adapted to the current traffic demand. However, when faced with tidal traffic flow during special periods, such as the super-large traffic volume during holidays, it is easy to cause traffic congestion. In order to alleviate traffic congestion pressure, a highway toll collection device that can be quickly loaded, unloaded and installed is proposed. Utility Model Content
[0004] To address the above issues, this utility model provides a quick-installation high-speed toll collection device based on 5G technology. Through the cooperation between the proposed squeeze triggering device and the speed bump airbag, the operation of the scanning display device is triggered. Furthermore, the structural cooperation of the end inflation component enables rapid inflation and deflation of the speed bump airbag, facilitating quick inflation and installation according to actual usage needs. Compared to traditional toll gates, this device is smaller, more flexible, easier to move, and easier to store after disassembly, significantly improving its applicability.
[0005] The technical solution adopted by this utility model is as follows: This utility model proposes a fast-installation high-speed toll collection device based on 5G technology, including a squeeze triggering device, an inflatable airbag component, and a scanning display device. The squeeze triggering device is signal-connected to the scanning display device, and the squeeze triggering device is fixedly connected to the inflatable airbag component. The squeeze triggering device includes a deformation sliding component, a front shielding plate, and a rear shielding plate. The front shielding plate and the rear shielding plate are respectively fixedly connected to the two sides of the deformation sliding component, and the front shielding plate is fixedly connected to the inflatable airbag component.
[0006] Furthermore, the deformation sliding component includes a trigger cavity, a deformation cavity, and a positive pressure cavity. The trigger cavity is located at the top of the deformation cavity, and the positive pressure cavity is located at the bottom of the deformation cavity. A sliding groove is formed on the inner wall of the trigger cavity, and a sliding plate is slidably arranged in the sliding groove. Trigger electrodes are fixedly connected to both ends of the sliding plate. A sensing electrode is fixedly connected to the top and bottom surfaces of the trigger cavity. The trigger electrode and the sensing electrode are arranged in opposite positions. A support spring is fixedly connected between the bottom surface of the trigger cavity and the top surface of the sliding plate.
[0007] Preferably, the deformation cavity is provided with a deformation bladder, which is filled with an internal fluid, which is a non-Newtonian fluid. The side wall of the deformation cavity is provided with a second sliding groove, and a second sliding plate is slidably disposed in the second sliding groove. The deformation bladder proposed in this utility model is placed in the deformation cavity, and the deformation bladder is filled with an internal fluid. It should be noted that the internal fluid is a non-Newtonian fluid, and the deformation bladder is made of a soft but low-ductility material. The upper part of the deformation cavity has an inclined structure that is larger at the bottom and smaller at the top, which can effectively prevent the deformation bladder from displacing upward when it is squeezed. The deformation bladder will only deform slowly when it is slowly pushed by the second sliding plate. The upper top of the deformation bladder protrudes and pushes the first sliding plate, so that the contact electrode and the sensing electrode come into contact, triggering the scanning display device, which can effectively control the vehicle to decelerate.
[0008] As a further preferred embodiment of this utility model, a drag spring is fixedly connected between the bottom top surface of the positive pressure cavity and the bottom surface of the sliding plate II, and a connecting package is fixedly connected to the bottom of the front shield plate.
[0009] Furthermore, the inflatable airbag component includes an end inflation component and a speed bump airbag. The end inflation component is fixedly connected to one end of the speed bump airbag, and the outer wall of the other end of the speed bump airbag is fixedly connected to the inner wall of the connecting package. The speed bump airbag component is in communication with the positive pressure cavity.
[0010] Preferably, the end inflation component includes a fixed end block, a fixed tube, a sliding member, and a return spring. The fixed tube is fixedly connected to the fixed end block, the sliding member slides and inserts within the fixed tube, and the return spring is fixedly disposed between the fixed end block and the sliding member.
[0011] As a further preferred embodiment of this utility model, the fixed end block is provided with a through hole, and a locking tube is fixedly provided on the inner wall of the fixed end block. The through hole and the locking tube are arranged in the same circle. The outer wall of the fixed tube is fixedly connected to the inner wall of the through hole. An end limiting ring is fixedly provided at one end of the fixed tube, and a limiting groove is provided on the end limiting ring.
[0012] Furthermore, the sliding component includes a moving rod, an end engaging disc, and a branch end engaging component. The end engaging disc is fixedly connected to one end of the moving rod, and the branch end engaging component is fixedly connected to the other end of the moving rod. The branch end engaging component includes a crossbar, a longitudinal bar, and a sliding ring. The crossbar is fixedly connected to one end of the moving rod, and longitudinal bars are fixedly connected to both ends of the crossbar. The sliding ring is fixedly connected to the other end of the longitudinal bar. The sliding ring slidably wraps around the outside of the fixed tube, and the longitudinal bar engages and slides within the limiting groove.
[0013] Preferably, the return spring is wrapped around the outside of the locking tube, one end of the return spring is fixedly connected to the end locking disc, and the other end of the return spring is fixedly connected to the outer wall of the fixed end block. In the normal state, the outer wall of the end locking disc of the sliding component proposed in this invention is attached to the inner wall of the end of the fixed tube, and the sliding ring is arranged to fit against the end limiting ring of the fixed ring, thus restricting the sliding component's movement within the fixed tube. By pressing the moving rod inward, the end locking disc separates from the fixed tube, opening the inflation passage, allowing the operator to connect the inflation device. The pump inflates the speed bump airbag through a fixed pipe until it reaches a certain pressure. After inflation, it moves and pushes the sliding component to seal the fixed pipe under high pressure. When a vehicle passes over it, the pressure inside the speed bump airbag increases due to compression. Because the end inflation component can keep it sealed, the sliding plate can slide upward under pressure. When deflation is needed, simply press the sliding component inward to automatically deflate. It is convenient to fold and store the speed bump airbag afterward. It is easy to operate and store, does not limit the usage scenario, and is highly adaptable.
[0014] As a further preferred embodiment of this utility model, the scanning display device includes a support frame, a display mechanism, and a scanning mechanism. The scanning mechanism is disposed within the support frame and is signal-connected to the display mechanism. The display mechanism is fixedly mounted on the support frame. The scanning mechanism proposed in this utility model is connected to a computing system according to actual application conditions, facilitating unified calculation management. Furthermore, since the scanning mechanism is signal-connected to the trigger electrode and the sensing electrode, the placement position and height of the scanning display device can be set according to traffic flow conditions, greatly improving the adaptability of this device.
[0015] The beneficial effects of this utility model by adopting the above structure are as follows:
[0016] (1) The deformable bladder proposed in this utility model is placed in the deformable cavity. The deformable bladder is filled with internal fluid. It should be noted that the internal fluid is a non-Newtonian fluid. The deformable bladder is made of a soft but low-ductility material. The upper part of the deformable cavity has an inclined structure that is larger at the bottom and smaller at the top. This can effectively prevent the deformable bladder from displacing upward when it is squeezed. Only when the sliding plate 2 is slowly pushed will the deformable bladder be squeezed and undergo slow deformation. The upper top of the deformable bladder protrudes and pushes the sliding plate 1, so that the contact electrode and the sensing electrode come into contact, triggering the scanning display device, which can effectively control the vehicle to slow down.
[0017] (2) In the present invention, the outer wall of the end locking disc of the sliding component is attached to the inner wall of the end of the fixed tube under normal conditions, and the sliding ring is attached to the end limiting ring of the fixed ring to restrict the sliding component's insertion and movement position in the fixed tube. When a vehicle passes by, the pressure inside the speed bump airbag increases due to compression. Since the end inflation component can ensure the seal, the sliding plate can slide upward under pressure. When air needs to be released, simply press the sliding component inward to release the air automatically. This makes it convenient to fold and store the speed bump airbag afterward. The operation is convenient and the storage is convenient. It does not restrict the usage scenario and has strong adaptability.
[0018] (3) The scanning mechanism proposed in this utility model is connected to the computing system according to the actual application situation, which facilitates unified computing management. Furthermore, since the scanning mechanism is connected to the trigger electrode and the sensing electrode, the placement position and height of the scanning display device can be set according to the traffic flow, which greatly improves the adaptability of this device. Attached Figure Description
[0019] Figure 1 This is a top view of a fast-installation high-speed toll collection device based on 5G technology proposed in this utility model;
[0020] Figure 2 This is an elevation view of a fast-installation high-speed toll collection device based on 5G technology proposed in this utility model;
[0021] Figure 3 for Figure 1 A cross-sectional view along section line AA;
[0022] Figure 4 This is an exploded view of the end-inflatable component proposed in this utility model;
[0023] Figure 5 This is an exploded view of the structure of the extrusion triggering device proposed in this utility model;
[0024] Figure 6 for Figure 3 A cross-sectional view along the cutting line BB;
[0025] Figure 7 for Figure 3 A magnified view of section I in the middle.
[0026] The components include: 1. Squeeze triggering device; 2. Inflatable airbag component; 3. Scanning display device; 4. Deformation sliding component; 5. Front shielding plate; 6. Rear shielding plate; 7. End inflation component; 8. Speed bump airbag; 9. Support frame; 10. Display mechanism; 11. Scanning mechanism; 12. Triggering chamber; 13. Deformation chamber; 14. Positive pressure chamber; 15. Connecting package; 16. Slide groove one; 17. Support spring; 18. Sensing electrode; 19. Slide plate one. 20. Trigger electrode; 21. Deformation bladder; 22. Sliding plate II; 23. Slide groove II; 24. Internal fluid; 25. Dragging spring; 26. Fixed end block; 27. Fixed tube; 28. Sliding component; 29. Return spring; 30. Through hole; 31. Engaging tube; 32. End limiting ring; 33. Limiting slot; 34. Moving rod; 35. End engaging disc; 36. Outlet end engaging component; 37. Horizontal bar; 38. Vertical bar; 39. Sliding ring.
[0027] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof. Detailed Implementation
[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.
[0029] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0030] like Figures 1-7 As shown, this utility model proposes a quick-installation high-speed toll collection device based on 5G technology, including a squeeze triggering device 1, an inflatable airbag component 2, and a scanning display device 3. The squeeze triggering device 1 is signal-connected to the scanning display device 3, and the squeeze triggering device 1 is fixedly connected to the inflatable airbag component 2. The squeeze triggering device 1 includes a deformation sliding component 4, a front shielding plate 5, and a rear shielding plate 6. The front shielding plate 5 and the rear shielding plate 6 are respectively fixedly installed on the two sides of the deformation sliding component 4, and the front shielding plate 5 is fixedly connected to the inflatable airbag component 2.
[0031] The deformation sliding component 4 includes a trigger cavity 12, a deformation cavity 13, and a positive pressure cavity 14. The trigger cavity 12 is located at the top of the deformation cavity 13, and the positive pressure cavity 14 is located at the bottom of the deformation cavity 13. A sliding groove 16 is provided on the inner wall of the trigger cavity 12. A sliding plate 19 is slidably arranged in the sliding groove 16. Trigger electrodes 20 are fixedly connected to both ends of the sliding plate 19. A sensing electrode 18 is fixedly connected to the top and bottom surfaces of the trigger cavity 12. The trigger electrode 20 and the sensing electrode 18 are arranged in opposite positions. A support spring 17 is fixedly connected between the bottom surface of the trigger cavity 12 and the top surface of the sliding plate 19.
[0032] The deformation cavity 13 is provided with a deformation bladder 21, which is filled with an internal fluid 24. The internal fluid 24 is a non-Newtonian fluid. The side wall of the deformation cavity 13 is provided with a second groove 23, and a second sliding plate 22 is slidably provided in the second groove 23.
[0033] A drag spring 25 is fixedly connected between the bottom top surface of the positive pressure chamber 14 and the bottom surface of the sliding plate 22, and a connecting package 15 is fixedly connected to the bottom of the front shield 5.
[0034] The inflatable airbag component 2 includes an end inflation component 7 and a speed bump airbag 8. The end inflation component 7 is fixedly connected to one end of the speed bump airbag 8, and the outer wall of the other end of the speed bump airbag 8 is fixedly connected to the inner wall of the connecting wrapping component 15. The speed bump airbag 8 is in communication with the positive pressure chamber 14.
[0035] The end inflation component 7 includes a fixed end block 26, a fixed tube 27, a sliding member 28, and a return spring 29. The fixed tube 27 is fixedly connected to the fixed end block 26, the sliding member 28 slides and passes through the fixed tube 27, and the return spring 29 is fixedly located between the fixed end block 26 and the sliding member 28.
[0036] The fixed end block 26 has a through hole 30, and a locking tube 31 is fixedly connected to the inner wall of the fixed end block 26. The through hole 30 and the locking tube 31 are arranged in the same circle. The outer wall of the fixed tube 27 is fixedly connected to the inner wall of the through hole 30. One end of the fixed tube 27 is fixedly connected to an end limiting ring 32, and a limiting groove 33 is opened on the end limiting ring 32.
[0037] The sliding component 28 includes a moving rod 34, an end engaging plate 35, and an extension end engaging component 36. The end engaging plate 35 is fixedly connected to one end of the moving rod 34, and the extension end engaging component 36 is fixedly connected to the other end of the moving rod 34. The extension end engaging component 36 includes a horizontal rod 37, a vertical rod 38, and a sliding ring 39. The horizontal rod 37 is fixedly connected to one end of the moving rod 34, and the vertical rod 38 is fixedly connected to both ends of the horizontal rod 37. The sliding ring 39 is fixedly connected to the other end of the vertical rod 38. The sliding ring 39 slides around the outside of the fixed tube 27, and the vertical rod 38 engages and slides within the limiting groove 33.
[0038] The return spring 29 is wrapped around the outside of the locking tube 31. One end of the return spring 29 is fixedly connected to the end locking plate 35, and the other end of the return spring 29 is fixedly connected to the outer wall of the fixed end block 26.
[0039] The scanning display device 3 includes a support frame 9, a display mechanism 10 and a scanning mechanism 11. The scanning mechanism 11 is located inside the support frame 9 and is signal-connected to the display mechanism 10. The display mechanism 10 is fixedly mounted on the support frame 9.
[0040] In practical use, the device is installed according to requirements. After fixing the compression trigger device 1, the speed bump airbag 8 is laid out, the end inflation component 7 is fixed, and the protruding end of the sliding component 28 is pressed. The sliding ring 39 in the protruding end locking component 36 slides along the outer wall of the fixed tube 27. The end locking disc 35 separates from the locking tube 31 fixed to the fixed end block 26, opening the connection channel. Using the inflation device, air is inflated into the speed bump airbag 8 through the outer end of the fixed tube 27 until a certain air pressure is reached. At this time, the pressure in the speed bump airbag 8 is consistent with the pressure in the positive pressure chamber 14 of the deformation sliding component 4. The inflation device is removed, and the return spring 29 pulls the end locking disc 35 back to its original position. Under the combined action of the high pressure and the return spring 29, the outer wall of the end locking disc 35 adheres to the inner wall of the end of the locking tube 31. Under the squeezing action of the pressure, the sliding ring 39 adheres to the end limiting ring 32, ensuring that the end inflation component 7 and the speed bump airbag 8 are in a closed state.
[0041] A speed limit warning sign is erected to remind vehicles to drive slowly. After pressing the speed bump airbag 8, the pressure inside the speed bump airbag 8 slowly increases due to the slow compression. The air pressure in the positive pressure chamber 14 also slowly increases synchronously. The sliding plate 22 slowly slides along the groove 23 of the deformation chamber 13, pushing and compressing the deformation bladder 21. The internal fluid 24 of the deformation bladder 21 deforms due to its own physical properties, and the top of the deformation bladder 21 deforms and bulges, pushing the sliding plate 19 to slide along the groove 16 of the trigger chamber 12. The trigger electrodes 20 at both ends of the sliding plate 19 contact the inductive electrode. When electrode 18 is triggered, the scanning mechanism 11 of the scanning display device 3 is activated to scan the vehicles within the scanning range. The information is fed back to the display mechanism 10 after entering the computing system. When the wheels pass over the speed bump airbag 8, the air pressure in the speed bump airbag 8 and the positive pressure chamber 14 is restored. Under the drag of the drag spring 25, the sliding plate 22 moves down and resets along the sliding groove 23, and the deformable bladder 21 slowly resets. Under the support of the support spring 17, the sliding plate 19 moves down along the sliding groove 16, the trigger electrode 20 separates from the sensing electrode 18, and the scanning mechanism 11 stops working, completing one scanning operation. Since there is a time difference between the front and rear wheels of the car passing over the speed bump, the scanning time can be controlled by setting the time. When the vehicle passes over the speed bump quickly, due to the rapid compression of the wheels on the speed bump airbag 8, the internal fluid 24 does not deform under the strong compression of the sliding plate 22, and the speed bump airbag 8 does not deform, resulting in a noticeable vibration when the vehicle passes over it.
[0042] The above is the overall workflow of this utility model. Simply repeat these steps the next time you use it.
[0043] 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.
[0044] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.
Claims
1. A fast-installation high-speed toll collection device based on 5G technology, characterized in that: It includes a squeeze trigger device (1), an inflatable airbag component (2) and a scanning display device (3). The squeeze trigger device (1) is signal connected to the scanning display device (3). The squeeze trigger device (1) is fixedly connected to the inflatable airbag component (2). The squeeze trigger device (1) includes a deformation sliding component (4), a front shielding plate (5) and a rear shielding plate (6). The front shielding plate (5) and the rear shielding plate (6) are respectively fixedly disposed on the two sides of the deformation sliding component (4). The front shielding plate (5) is fixedly connected to the inflatable airbag component (2).
2. The fast-installation high-speed toll collection device based on 5G technology according to claim 1, characterized in that: The deformation sliding component (4) includes a trigger cavity (12), a deformation cavity (13), and a positive pressure cavity (14). The trigger cavity (12) is located at the top of the deformation cavity (13), and the positive pressure cavity (14) is located at the bottom of the deformation cavity (13). A sliding groove (16) is provided on the inner wall of the trigger cavity (12). A sliding plate (19) is slidably provided in the sliding groove (16). Trigger electrodes (20) are fixedly connected to both ends of the sliding plate (19). A sensing electrode (18) is fixedly connected to the top and bottom surfaces of the trigger cavity (12). The trigger electrode (20) and the sensing electrode (18) are arranged in opposite positions. A support spring (17) is fixedly connected between the bottom surface of the trigger cavity (12) and the top surface of the sliding plate (19).
3. The fast-installation high-speed toll collection device based on 5G technology according to claim 2, characterized in that: The deformation cavity (13) is provided with a deformation bladder (21), which is filled with an internal fluid (24). The internal fluid (24) is a non-Newtonian fluid. The side wall of the deformation cavity (13) is provided with a second sliding groove (23), and a second sliding plate (22) is slidably provided in the second sliding groove (23).
4. The fast-installation high-speed toll collection device based on 5G technology according to claim 3, characterized in that: A drag spring (25) is fixedly connected between the bottom top surface of the positive pressure chamber (14) and the bottom surface of the sliding plate (22), and a connecting package (15) is fixedly connected to the bottom of the shielding front plate (5).
5. A fast-installation high-speed toll collection device based on 5G technology according to claim 4, characterized in that: The inflatable airbag component (2) includes an end inflation component (7) and a speed bump airbag (8). The end inflation component (7) is fixedly connected to one end of the speed bump airbag (8). The outer wall of the other end of the speed bump airbag (8) is fixedly connected to the inner wall of the connecting package (15). The speed bump airbag (8) is in communication with the positive pressure chamber (14).
6. A fast-installation high-speed toll collection device based on 5G technology according to claim 5, characterized in that: The end inflation component (7) includes a fixed end block (26), a fixed tube (27), a sliding member (28), and a return spring (29). The fixed tube (27) is fixedly connected to the fixed end block (26), the sliding member (28) slides and inserts inside the fixed tube (27), and the return spring (29) is fixedly located between the fixed end block (26) and the sliding member (28).
7. A fast-installation high-speed toll collection device based on 5G technology according to claim 6, characterized in that: The fixed end block (26) has a through hole (30) and a locking tube (31) is fixedly connected to the inner wall of the fixed end block (26). The through hole (30) and the locking tube (31) are arranged in the same circle. The outer wall of the fixed tube (27) is fixedly connected to the inner wall of the through hole (30). One end of the fixed tube (27) is fixedly connected to an end limiting ring (32), and a limiting groove (33) is opened on the end limiting ring (32).
8. A fast-installation high-speed toll collection device based on 5G technology according to claim 7, characterized in that: The sliding component (28) includes a moving rod (34), an end engaging plate (35), and an outlet engaging component (36). The end engaging plate (35) is fixedly connected to one end of the moving rod (34), and the outlet engaging component (36) is fixedly connected to the other end of the moving rod (34). The outlet engaging component (36) includes a horizontal bar (37), a vertical bar (38), and a sliding ring (39). The horizontal bar (37) is fixedly connected to one end of the moving rod (34), and the vertical bars (38) are fixedly connected to both ends of the horizontal bar (37). The sliding ring (39) is fixedly connected to the other end of the vertical bar (38). The sliding ring (39) slides around the outside of the fixed tube (27), and the vertical bar (38) engages and slides within the limiting groove (33).
9. A fast-installation high-speed toll collection device based on 5G technology according to claim 8, characterized in that: The return spring (29) is wrapped around the outside of the locking tube (31). One end of the return spring (29) is fixedly connected to the end locking plate (35), and the other end of the return spring (29) is fixedly connected to the outer wall of the fixed end block (26).
10. A fast-installation high-speed toll collection device based on 5G technology according to claim 9, characterized in that: The scanning display device (3) includes a support frame (9), a display mechanism (10) and a scanning mechanism (11). The scanning mechanism (11) is located inside the support frame (9). The scanning mechanism (11) is signal connected to the display mechanism (10). The display mechanism (10) is fixedly mounted on the support frame (9).