A tunnel signal transmitting device based on signal enhancement technology

Abstract

This invention relates to the field of tunnel communication technology and provides a tunnel signal transmitting device based on signal enhancement technology. The device includes a base, an arc-shaped plate fixedly mounted on the top of the base, a horizontal plate above the arc-shaped plate, an arc-shaped block fixedly mounted on the top of the horizontal plate, and a housing fixedly mounted on the top of the arc-shaped block. A bracket is fixedly mounted on the top of the housing, and a fiber optic repeater is fixedly mounted on the bracket. Signal transmitting antennas for enhancing tunnel signals are provided on both sides of the fiber optic repeater, and both signal transmitting antennas are connected to the fiber optic repeater via cables. This solution solves the problems of inconvenience in installing fiber optic repeaters and signal transmitting antennas for signal enhancement at high locations in tunnels with arc-shaped walls, and the risk of collisions during relocation after dismantling the fiber optic repeaters and signal transmitting antennas.

Description

Technical Field

[0001] This invention belongs to the field of tunnel communication technology, and particularly relates to a tunnel signal transmitting device based on signal enhancement technology. Background Technology

[0002] During tunnel construction, due to poor signal inside the tunnel, in order to prevent personnel inside from being unable to establish timely communication with personnel outside the tunnel, receiving antennas are usually installed outside the tunnel, and fiber optic repeaters and signal transmitting antennas are installed on the tunnel walls. After connecting the various components with cables, the receiving antenna transmits the received signal from the external base station to the fiber optic repeater, and then the fiber optic repeater spreads the signal into the tunnel through the signal transmitting antenna, achieving signal coverage inside the tunnel and ensuring that personnel inside can use their mobile phones to make calls and access the Internet, thereby ensuring personnel safety. However, the tunnel walls are usually curved, which makes it difficult for construction workers to install the fiber optic repeaters and signal transmitting antennas above head height. In addition, during later construction, the fiber optic repeaters and signal transmitting antennas need to be removed from the tunnel due to the need to treat the tunnel walls. After removal, the fiber optic repeaters and signal transmitting antennas lack proper protective shells and are prone to collisions and damage during transfer.

[0003] Therefore, it is necessary to provide a tunnel signal transmitting device based on signal enhancement technology to solve the above-mentioned technical problems. Summary of the Invention

[0004] This invention provides a tunnel signal transmitting device based on signal enhancement technology, aiming to solve the problems mentioned in the background art, such as the inconvenience of installing fiber optic repeaters and signal transmitting antennas for signal enhancement at high locations in tunnels with curved walls, and the easy collisions that occur during the transfer of fiber optic repeaters and signal transmitting antennas after dismantling.

[0005] To solve the above problems, the present invention is implemented as follows: a tunnel signal transmitting device based on signal enhancement technology, comprising: a base, an arc-shaped plate fixedly installed on the top of the base, a horizontal plate arranged above the arc-shaped plate, an arc-shaped block fixedly installed on the top of the horizontal plate, and a housing fixedly installed on the top of the arc-shaped block; a bracket fixedly installed on the top of the housing, on which an optical fiber repeater is fixedly installed, and signal transmitting antennas for enhancing tunnel signals are arranged on both sides of the optical fiber repeater, both of which are connected to the optical fiber repeater via cables; two protective shells disposed above the base for shielding the optical fiber repeater and the two signal transmitting antennas; a lifting mechanism mounted on the arc-shaped plate for raising and lowering the optical fiber repeater and the two signal transmitting antennas; and an unfolding mechanism mounted on the base for unfolding the two protective shells.

[0006] Preferably, the lifting mechanism includes: a sliding groove formed on the arc-shaped plate, a sliding rod fixedly installed on the inner wall of the sliding groove, a slider slidably installed on the sliding rod, and the slider slidably connected to the inner wall of the sliding groove; a positioning rod fixedly installed on the slider, a first arc-shaped rack fixedly installed at one end of the positioning rod, the top of the first arc-shaped rack being fixedly connected to the bottom of the horizontal plate; a servo motor fixedly installed on the arc-shaped plate, a first bevel gear fixedly installed on the output shaft of the servo motor; two support blocks fixedly installed on the arc-shaped plate, a first rotating shaft rotatably installed on the two support blocks, a second bevel gear fixedly installed at one end of the first rotating shaft, the second bevel gear meshing with the first bevel gear; and a first gear fixedly sleeved on the first rotating shaft, the first gear meshing with the first arc-shaped rack.

[0007] Preferably, the unfolding mechanism includes: two arc-shaped mounting brackets welded to the base, each arc-shaped mounting bracket having a second connecting block fixedly mounted on it; two first connecting blocks fixedly mounted on the inner walls of the two protective shells, each first connecting block having a hinged frame hinged to it, with the sides of the two hinged frames close to each other respectively hinged to the two second connecting blocks; two push blocks rotatably mounted on the two hinged frames, each push block having two support rods fixedly mounted on it, with multiple support rods slidably connected to the two arc-shaped mounting brackets respectively; a bidirectional screw rotatably mounted on the sides of the two arc-shaped mounting brackets close to each other, with two connecting plates threaded onto the bidirectional screw, the two connecting plates being fixedly connected to the multiple support rods respectively; a second gear fixedly sleeved on the bidirectional screw, the second gear meshing with the first arc-shaped rack; and multiple telescopic rods fixedly mounted on the two arc-shaped mounting brackets, with one end of each telescopic rod fixedly connected to the inner wall of the two protective shells respectively.

[0008] Preferably, the housing has multiple through holes, all of which are located outside the two cables, and one side of the base has an arc surface for fitting against the tunnel wall.

[0009] Preferably, both protective shells are arc-shaped, and the base has two rectangular holes for transporting the base.

[0010] Preferably, both protective shells are provided with a plurality of first balls, which are used to roll on the tunnel wall.

[0011] Preferably, the bracket has two openings, both of which are used to save on the materials used in making the bracket.

[0012] Preferably, the first arc-shaped rack is made of stainless steel and is in contact with the arc-shaped plate.

[0013] Preferably, each of the two arc-shaped mounting brackets has a triangular support portion on one side that is close to each other, and the two triangular support portions are used to support the two arc-shaped mounting brackets respectively.

[0014] Preferably, each of the two protective shells has two fixing plates for fixing the protective shell, and each of the fixing plates has mounting holes for mounting bolts.

[0015] Compared with related technologies, the tunnel signal transmitting device based on signal enhancement technology provided by the present invention has the following beneficial effects: Compared with existing technologies, the tunnel signal transmitting device based on signal enhancement technology provided in this solution, through the cooperation of a "lifting mechanism" and a "deploying mechanism," allows the fiber optic repeater and two signal transmitting antennas to be smoothly moved out from the top of the two protective shells when the protective shells are opened to both sides. This allows the fiber optic repeater and two signal transmitting antennas to be used above the two protective shells, making them easily usable at a position higher than people's heads. Similarly, while retracting the fiber optic repeater and two signal transmitting antennas into the two protective shells, the two protective shells can also be retracted, effectively shielding and protecting the fiber optic repeater and two signal transmitting antennas inside. This prevents the fiber optic repeater and two signal transmitting antennas from directly colliding with passing objects during the transfer process, reducing the risk of damage and providing better protection. Attached Figure Description

[0016] Figure 1 This is a cross-sectional structural schematic diagram of a tunnel signal transmitting device based on signal enhancement technology provided by the present invention; Figure 2 This is a side view of the protective shell and fixing piece in this invention. Figure 3 This is a side sectional view of the base, protective shell, and arc-shaped mounting bracket in this invention. Figure 4 This is a schematic diagram of the assembly structure of the arc-shaped plate and the first arc-shaped rack in this invention; Figure 5 for Figure 1 An enlarged structural diagram of part A shown in the figure; Figure 6 for Figure 1 An enlarged structural diagram of part B shown in the figure; Figure 7 for Figure 1 An enlarged structural diagram of section C shown in the figure; Figure 8 for Figure 1 An enlarged structural diagram of part D shown in the figure; Figure 9 for Figure 1 An enlarged structural diagram of part E shown in the figure; Figure 10 for Figure 7 An enlarged structural diagram of part F shown in the figure; Figure 11 This is a schematic diagram of the assembly structure of the arc-shaped rod and the limiting block in this invention.

[0017] Reference numerals: 1. Base; 2. Arc-shaped plate; 3. Sliding groove; 4. Sliding rod; 5. Sliding block; 6. Positioning rod; 7. First arc-shaped rack; 8. Horizontal plate; 9. Arc-shaped block; 10. Housing; 11. Bracket; 12. Fiber optic repeater; 13. Rotating rod; 14. Winding wheel; 15. Signal transmitting antenna; 16. Cable; 17. Support block; 18. First rotating shaft; 19. First gear; 20. Servo motor; 21. First bevel gear; 22. Second bevel gear; 23. Arc-shaped mounting bracket; 24. First connecting block; 25. Second connecting block; 26. Hinge frame; 27. Push block; 28. Extension 29. Telescopic rod; 30. Double-acting screw; 31. Second gear; 32. Connecting plate; 33. Support rod; 34. Support plate; 35. Arc-shaped strip; 36. Second arc-shaped rack; 37. Double-acting lead screw; 38. Third gear; 39. Third connecting block; 40. Fixing frame; 41. Support base; 42. Fixing rod; 43. Round shell; 44. Spring; 45. Second rotating shaft; 46. Annular groove; 47. Pull belt; 48. Third bevel gear; 49. Fourth bevel gear; 50. Connecting frame; 51. Sliding sleeve; 52. Arc-shaped rod; 53. Limiting block; 54. Fixing plate; 55. Rectangular hole; 56. Protective shell. Detailed Implementation

[0018] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0019] This invention provides a tunnel signal transmitting device based on signal enhancement technology, such as... Figure 1-11As shown, the tunnel signal transmitting device based on signal enhancement technology includes: a base 1, an arc-shaped plate 2 fixedly installed on the top of the base 1, a horizontal plate 8 above the arc-shaped plate 2, an arc-shaped block 9 fixedly installed on the top of the horizontal plate 8, and a housing 10 fixedly installed on the top of the arc-shaped block 9; a bracket 11 fixedly installed on the top of the housing 10, a fiber optic repeater 12 fixedly installed on the bracket 11, signal transmitting antennas 15 for enhancing tunnel signals on both sides of the fiber optic repeater 12, and both signal transmitting antennas 15 connected to the fiber optic repeater 12 via cables 16; two protective shells 55 disposed above the base 1 for shielding the fiber optic repeater 12 and the two signal transmitting antennas 15; a lifting mechanism mounted on the arc-shaped plate 2 for raising and lowering the fiber optic repeater 12 and the two signal transmitting antennas 15; and an unfolding mechanism mounted on the base 1 for unfolding the two protective shells 55.

[0020] In this embodiment, during tunnel construction, to ensure stable communication between personnel inside and outside the tunnel, it is necessary to use this device to amplify the weak signals inside the tunnel. When in use, the device can be moved into the tunnel using equipment such as a forklift. After being moved to the desired location, the worker can manually remove the device from the forklift, ensuring the backs of the two protective shells 55 are against the curved wall inside the tunnel and the base 1 is against the tunnel floor. Then, the lifting mechanism is activated, forcing the unfolding mechanism to operate simultaneously. The lifting mechanism will cause the fiber optic repeater 12 and the two signal transmitting antennas 15 to move upwards in an arc. When the tops of the fiber optic repeater 12 and the two signal transmitting antennas 15 are almost at the top of the two protective shells 55, the unfolding mechanism will open the two protective shells 55 to the sides to the appropriate extent, allowing the fiber optic repeater 12 and the two signal transmitting antennas 15 to smoothly exit from the two protective shells 55. After the top is moved out, the fiber optic repeater 12 and two signal transmitting antennas 15 can be moved above the two protective shells 55 under the continuous operation of the lifting mechanism. After reaching a suitable height, the operation stops. Usually, it is higher than the head of the workers. At this time, the two protective shells 55 can be fixed to the tunnel wall with bolts. The device can be stably installed on the tunnel wall. After stable installation, the receiving antenna needs to be installed at the corresponding position outside the tunnel. Then, the receiving antenna is connected to the fiber optic repeater 12 with the corresponding cable. Then, the fiber optic repeater 12 and the two signal transmitting antennas 15 can be started. The receiving antenna can transmit the received external base station signal to the fiber optic repeater 12. The fiber optic repeater 12 then spreads the signal into the tunnel through the two cables 16 and the two signal transmitting antennas 15 to achieve signal coverage inside the tunnel. This ensures that the personnel inside can use mobile phones to make calls and access the Internet normally, thereby ensuring the safety of the construction personnel inside the tunnel. When the walls inside the tunnel need to be repaired, first disconnect the cable connecting the fiber optic repeater 12 and the receiving antenna. Then, remove the bolts securing the two protective shells 55 from the tunnel wall. After removal, start the lifting mechanism in reverse. The lifting mechanism will first move in an arc to retract the fiber optic repeater 12 and the two signal transmitting antennas 15 into the two protective shells 55. During the retraction process, the unfolding mechanism will also be forced to move in reverse by the lifting mechanism, causing the protective shells 55 on both sides to retract into each other until the two protective shells 55 are in close contact. Then, the staff can move the device by manpower or forklift. During the transfer, the two protective shells 55 can effectively shield and protect the fiber optic repeater 12 and the two signal transmitting antennas 15 inside, preventing them from directly colliding with passing objects during the transfer, thus reducing the risk of damage and providing good protection.

[0021] In a further preferred embodiment of the present invention, the lifting mechanism includes: a sliding groove 3 formed on the arc-shaped plate 2, a sliding rod 4 fixedly installed on the inner wall of the sliding groove 3, a slider 5 slidably installed on the sliding rod 4, and the slider 5 slidably connected to the inner wall of the sliding groove 3; a positioning rod 6 fixedly installed on the slider 5, a first arc-shaped rack 7 fixedly installed at one end of the positioning rod 6, the top of the first arc-shaped rack 7 being fixedly connected to the bottom of the horizontal plate 8; a servo motor 20 fixedly installed on the arc-shaped plate 2, a first bevel gear 21 fixedly installed on the output shaft of the servo motor 20; two support blocks 17 fixedly installed on the arc-shaped plate 2, a first rotating shaft 18 rotatably installed on the two support blocks 17, a second bevel gear 22 fixedly installed at one end of the first rotating shaft 18, the second bevel gear 22 meshing with the first bevel gear 21; and a first gear 19 fixedly sleeved on the first rotating shaft 18, the first gear 19 meshing with the first arc-shaped rack 7.

[0022] In this embodiment, when the lifting mechanism is working, the servo motor 20 drives the first bevel gear 21 to rotate, the first bevel gear 21 drives the second bevel gear 22 to rotate, the second bevel gear 22 drives the first rotating shaft 18 to rotate on the two support blocks 17, the first rotating shaft 18 drives the first gear 19 to rotate, and the first gear 19 drives the first arc rack 7 to move, so that the first arc rack 7 drives the horizontal plate 8 to make an arc-shaped movement, so that the horizontal plate 8 can move the fiber optic repeater 12 and the two signal transmitting antennas 15 above the two protective shells 55, or move the fiber optic repeater 12 and the two signal transmitting antennas 15 into the two protective shells 55 through the arc-shaped movement. During the movement, the positioning rod 6 connected to the first arc rack 7 will simultaneously drive the slider 5 to slide on the slide rod 4, thereby ensuring the stability of the first arc rack 7 during operation.

[0023] In a further preferred embodiment of the present invention, the unfolding mechanism includes: two arc-shaped mounting brackets 23 welded to the base 1, each arc-shaped mounting bracket 23 having a second connecting block 25 fixedly mounted on it; two first connecting blocks 24 respectively fixedly mounted on the inner walls of the two protective shells 55, each first connecting block 24 having a hinged frame 26 hinged to it, the sides of the two hinged frames 26 that are close to each other being hinged to the two second connecting blocks 25; two pushing blocks 27 respectively rotatably mounted on the two hinged frames 26, each pushing block 27 having two support rods 32 fixedly mounted on it, and multiple... The support rods 32 are slidably connected to the two arc-shaped mounting brackets 23 respectively; a bidirectional screw 29 is rotatably mounted on one side of the two arc-shaped mounting brackets 23 that is close to each other, and two connecting plates 31 are threadedly mounted on the bidirectional screw 29. The two connecting plates 31 are fixedly connected to the multiple support rods 32 respectively; a second gear 30 is fixedly sleeved on the bidirectional screw 29, and the second gear 30 meshes with the first arc-shaped rack 7; multiple telescopic rods 28 are fixedly mounted on the two arc-shaped mounting brackets 23 respectively, and one end of the multiple telescopic rods 28 is fixedly connected to the inner wall of the two protective shells 55 respectively.

[0024] In this embodiment, the unfolding mechanism and the lifting mechanism are linked together. When the first arc-shaped rack 7 in the lifting mechanism moves upward, the second gear 30 meshing with the first arc-shaped rack 7 simultaneously drives the bidirectional screw 29 to rotate on the two arc-shaped mounting brackets 23. The bidirectional screw 29 drives the two connecting plates 31 to move away from each other. The two connecting plates 31 drive multiple support rods 32 to slide on the two arc-shaped mounting brackets 23. The multiple support rods 32 drive the two pushing blocks 27 to move away from each other. The two pushing blocks 27 drive the two hinge frames 26 to extend between the two first connecting blocks 24 and the two second connecting blocks 25. Under the extension action of the two hinge frames 26, the two protective shells 5 can be quickly unfolded. 5. When the first arc-shaped rack 7 moves upward and disengages from the second gear 30, the two protective shells 55 will stop moving. When the first arc-shaped rack 7 moves downward and reaches the corresponding position, it will re-engage with the second gear 30 and drive the second gear 30 to rotate in the opposite direction. Under the reverse rotation of the second gear 30, the two hinge frames 26 will retract, thereby closing the protective shells 55 on both sides. During the movement of the two hinge frames 26, the multiple telescopic rods 28 fixed between the two arc-shaped mounting frames 23 and the two protective shells 55 will also extend and retract simultaneously, thus ensuring the stability of the two protective shells 55 during the unfolding and retraction process.

[0025] In a further preferred embodiment of the present invention, the housing 10 is provided with a plurality of through holes, all of which are located outside the two cables 16, and one side of the base 1 is provided with an arc surface for fitting against the tunnel wall.

[0026] In this embodiment, the use of multiple through holes allows the cable 16 connecting the signal transmitting antenna 15 and the fiber optic repeater 12 to pass through the housing 10. By setting an arc surface on one side of the base 1, the device can be better fitted to the arc-shaped wall inside the tunnel for installation.

[0027] In a further preferred embodiment of the present invention, both protective shells 55 are configured as arc-shaped, and the base 1 has two rectangular holes 54 for transporting the base 1.

[0028] In this embodiment, the two arc-shaped protective shells 55 can be effectively attached to the walls inside the tunnel, so that the device can be installed inside the tunnel for use.

[0029] In a further preferred embodiment of the present invention, each of the two protective shells 55 is provided with a plurality of first balls, which are used to roll on the tunnel wall.

[0030] In this embodiment, by using multiple first ball bearings, the friction between the two protective shells 55 and the tunnel wall can be effectively reduced when the two protective shells 55 are unfolded and retracted, thereby effectively reducing the wear on the two protective shells 55.

[0031] In a further preferred embodiment of the present invention, the bracket 11 has two openings, both of which are used to save on the material used to manufacture the bracket 11.

[0032] In this embodiment, by opening two openings on the bracket 11, the required manufacturing materials can be saved during the manufacturing process of the bracket 11, thereby saving more manufacturing materials and costs when manufacturing the bracket 11 in large quantities.

[0033] In a further preferred embodiment of the present invention, the first arc-shaped rack 7 is made of stainless steel and is in contact with the arc-shaped plate 2.

[0034] In this embodiment, the first arc-shaped rack 7 made of stainless steel has good corrosion resistance and durability, is not easily damaged, and has good strength.

[0035] In a further preferred embodiment of the present invention, a triangular support portion is provided on one side of each of the two arc-shaped mounting brackets 23 that are close to each other, and the two triangular support portions are respectively used to support the two arc-shaped mounting brackets 23.

[0036] In this embodiment, the triangular support on one side of the arc-shaped mounting bracket 23 can increase the fixing area between the arc-shaped mounting bracket 23 and the base 1, so that the arc-shaped mounting bracket 23 can be more stably fixed on the base 1.

[0037] In a further preferred embodiment of the present invention, two fixing pieces 53 for fixing the protective shell 55 are fixedly installed on each of the two protective shells 55, and each of the fixing pieces 53 is provided with mounting holes for mounting bolts.

[0038] In this embodiment, the mounting holes on the multiple fixing plates 53 make it easy to fix the device to the arc-shaped wall inside the tunnel after the two protective shells 55 are unfolded. When fixing the device with bolts, the bolts to be used need to be passed through the mounting holes, and then the bolts can be driven into the wall inside the tunnel using electric equipment.

[0039] To further improve the performance of this device, in addition to the above-mentioned solutions, this solution also includes the following embodiments: In another embodiment of the present invention, the same moving mechanism is installed on the arc plate 2 and the horizontal plate 8. The moving mechanism is used to deploy two signal transmitting antennas 15. The moving mechanism includes: two support plates 33 fixedly installed on the arc plate 2, with arc strips 34 fixedly installed on the top of each of the two support plates 33, and second arc racks 35 fixedly installed on each of the two arc strips 34; a limiting groove opened on the horizontal plate 8, with a bidirectional lead screw 36 rotatably installed on the inner wall of the limiting groove, both ends of the bidirectional lead screw 36 extending to the outside of the horizontal plate 8 and fixedly installed with third gears 37, and the two third gears 37 respectively corresponding to the two second arc racks 35; two third connecting blocks 38 threadedly installed on the bidirectional lead screw 36, and the two third connecting blocks 38 are slidably connected to the inner wall of the limiting groove; and fixing frames 39 respectively welded to the two third connecting blocks 38, with the sides of the two fixing frames 39 that are far apart from each other fixedly connected to the two signal transmitting antennas 15 respectively.

[0040] In this embodiment, the moving mechanism and the lifting mechanism are linked together. When the lifting mechanism is running, the first arc-shaped rack 7 in the lifting mechanism will drive the horizontal plate 8 to move upward in an arc-shaped trajectory. During the movement of the horizontal plate 8, it will simultaneously drive the bidirectional lead screw 36 and the two third gears 37 to move upward. When the two third gears 37 move to a suitable height, they will mesh with the two second arc-shaped racks 35 respectively. At this time, as the two third gears 37 continue to move upward, they will roll on the two second arc-shaped racks 35 respectively, thereby driving the bidirectional lead screw 36 to rotate. The bidirectional lead screw 36 will drive the two third connecting blocks 38 to slide in the limiting groove of the horizontal plate 8. The two third connecting blocks 38 will drive the two signal transmitting antennas 15 to move away from each other through the two fixing brackets 39. After the two signal transmitting antennas 15 are moved to the outside of the two protective shells 55, they can unfold to both sides at the same time, so that the two signal transmitting antennas 15 can be used at the corresponding distance. When the first arc-shaped rack 7 in the lifting mechanism drives the horizontal plate 8 to move downward in an arc-shaped trajectory, the two third gears 37 will roll in opposite directions on the two second arc-shaped racks 35 respectively, thereby driving the bidirectional lead screw 36 to reverse. The bidirectional lead screw 36 will drive the two third connecting blocks 38 to slide in opposite directions in the limiting groove. The two third connecting blocks 38 will drive the two signal transmitting antennas 15 to move closer to each other through the two fixing brackets 39 until the original distance is restored. After the distance is restored, the two third gears 37 will disengage from the two second arc-shaped racks 35 due to downward movement, so that the horizontal plate 8 can be smoothly moved to the initial position.

[0041] In another embodiment of the present invention, the same winding mechanism is installed on the bracket 11 and the housing 10. The winding mechanism is used to wind up and unwind the cable 16. The winding mechanism includes: a rotating rod 13 rotatably mounted on the housing 10, with two winding wheels 14 for winding the cable 16 fixedly sleeved on the rotating rod 13; a support base 40 fixedly mounted on the bracket 11, with a fixing rod 41 fixedly mounted at the bottom of the support base 40, and a circular shell 42 rotatably mounted on the fixing rod 41. The circular shell 42 has an annular groove 45. A pull strap 46 is wound around the annular groove 45, and one end of the pull strap 46 is fixedly connected to any one of the fixed brackets 39; a spring 43 is fixedly sleeved on the fixed rod 41, and the outer ring of the spring 43 is fixedly connected to the inner wall of the circular shell 42; a second rotating shaft 44 is fixedly installed at the bottom of the circular shell 42, and a third bevel gear 47 is fixedly installed at the bottom end of the second rotating shaft 44; a fourth bevel gear 48 is fixedly installed at one end of the rotating rod 13, and the fourth bevel gear 48 meshes with the third bevel gear 47.

[0042] In this embodiment, the winding mechanism is used to wind up and unwind the cable 16. The two cables 16 connected between the fiber optic repeater 12 and the two signal transmitting antennas 15 are wound on two winding wheels 14. When the fixed frame 39 in the moving mechanism moves outward, the fixed frame 39 will simultaneously pull the pull strap 46. The pulling of the pull strap 46 will cause the circular shell 42 to rotate on the fixed rod 41. At this time, the spring 43 will continuously deform and accumulate energy under the rotation of the circular shell 42. The circular shell 42 will drive the second rotating shaft 44 to rotate, the second rotating shaft 44 will drive the third bevel gear 47 to rotate, and the third bevel gear 47 will drive the rotating rod 13 to rotate on the housing 10 through the fourth bevel gear 48. The rotating rod 13 will drive the two winding wheels 14 to rotate, so that the cable 16 wound on the two winding wheels 14 can be released, thereby allowing the cable 16 to be wound according to the distance between the two signal transmitting antennas 15. The mechanism automatically adjusts the length of the two cables 16. When the fixed frame 39 in the moving mechanism moves inward, the pull strap 46 loses the pull of the fixed frame 39. At this time, the spring 43 releases the stored energy, causing the round shell 42 to rotate in the opposite direction on the fixed rod 41 through elasticity. This allows the round shell 42 to wind up the pull strap 46 and simultaneously drive the second rotating shaft 44 to rotate in the opposite direction. The second rotating shaft 44 drives the third bevel gear 47 to rotate in the opposite direction. The third bevel gear 47 drives the rotating rod 13 to rotate in the opposite direction on the housing 10 through the fourth bevel gear 48. The rotating rod 13 drives the two winding wheels 14 to rotate in the opposite direction, so that the cables 16 wound on the two winding wheels 14 can be wound up. Thus, when the distance between the two signal transmitting antennas 15 is shortened, the two excessively long cables 16 can be taken into the housing 10 to prevent the cables 16 from being too long and affecting the use of the structure below.

[0043] In another embodiment of the present invention, a connecting frame 49 is fixedly installed on each of the two fixed frames 39, and a sliding sleeve 50 for pulling the cable 16 is fixedly installed on each of the two connecting frames 49. The two sliding sleeves 50 are respectively located outside the two cables 16, and a plurality of second balls are provided on the inner wall of each of the two sliding sleeves 50. The plurality of second balls are respectively in contact with the two cables 16.

[0044] In this embodiment, when the fixed frame 39 in the moving mechanism moves outward, the connecting frame 49 connected to it will simultaneously drive the sliding sleeve 50 to move. The sliding sleeve 50 will pull the cable 16 above the housing 10, which can effectively prevent the cable 16 released by the winding wheel 14 from accumulating excessively in the housing 10. Since the inner wall of the sliding sleeve 50 is provided with multiple second balls, the friction between the cable 16 and the sliding sleeve 50 can be effectively reduced.

[0045] In another embodiment of the present invention, an arc-shaped rod 51 is fixedly installed on the top of each of the two support plates 33, and a limiting block 52 for supporting the horizontal plate 8 is slidably sleeved on each of the two arc-shaped rods 51. The side of each of the two limiting blocks 52 that is close to each other is fixedly connected to the horizontal plate 8.

[0046] In this embodiment, the stability of the horizontal plate 8 during movement can be improved by the combined use of two arc-shaped rods 51 and two limiting blocks 52. Both limiting blocks 52 are located on one side of the bidirectional lead screw 36. When the horizontal plate 8 is raised or lowered, the two limiting blocks 52 connected to it will simultaneously slide on the two arc-shaped rods 51 with an arc.

[0047] In summary, compared with related technologies, this device, through the cooperation of the "lifting mechanism" and the "deploying mechanism," allows the fiber optic repeater 12 and the two signal transmitting antennas 15 to be smoothly moved out from the top of the two protective shells 55 when the protective shells 55 are opened to both sides. This allows the fiber optic repeater 12 and the two signal transmitting antennas 15 to be used above the two protective shells 55, making them easily usable at a position higher than people's heads. Similarly, while retracting the fiber optic repeater 12 and the two signal transmitting antennas 15 into the two protective shells 55, the two protective shells 55 can also be retracted, effectively shielding and protecting the fiber optic repeater 12 and the two signal transmitting antennas 15 inside. This prevents the fiber optic repeater 12 and the two signal transmitting antennas 15 from directly colliding with passing objects during the transfer process, reducing the risk of damage and providing better protection.

[0048] It should be understood, in the several embodiments provided in this application, that the disclosed apparatus may be implemented in other ways.

[0049] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit the scope of protection of the invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on these embodiments, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art can still combine, add, delete, or otherwise adjust the features of the various embodiments of the present invention according to the circumstances without conflict or creative effort, thereby obtaining different technical solutions that do not fundamentally depart from the concept of the present invention. These technical solutions also fall within the scope of protection of the present invention.

Claims

1. A tunnel signal transmitting device based on signal enhancement technology, characterized in that, include: A base (1) is fixedly installed on the top of the base (1), a curved plate (2) is fixedly installed on the top of the curved plate (2), a horizontal plate (8) is provided above the curved plate (2), a curved block (9) is fixedly installed on the top of the horizontal plate (8), and a box (10) is fixedly installed on the top of the curved block (9). A bracket (11) is fixedly installed on the top of the enclosure (10). A fiber optic repeater (12) is fixedly installed on the bracket (11). Both sides of the fiber optic repeater (12) are provided with signal transmitting antennas (15) for enhancing tunnel signals. Both signal transmitting antennas (15) are connected to the fiber optic repeater (12) through cables (16). Two protective shells (55) are installed above the base (1) to shield the fiber optic repeater (12) and the two signal transmitting antennas (15). A lifting mechanism mounted on the arc plate (2) for raising and lowering the fiber optic repeater (12) and the two signal transmitting antennas (15); An unfolding mechanism mounted on the base (1) for unfolding the two protective shells (55).

2. The tunnel signal transmitting device based on signal enhancement technology as described in claim 1, characterized in that, The lifting mechanism includes: A sliding groove (3) is formed on the arc plate (2), a sliding rod (4) is fixedly installed on the inner wall of the sliding groove (3), a slider (5) is slidably installed on the sliding rod (4), and the slider (5) is slidably connected to the inner wall of the sliding groove (3); A positioning rod (6) is fixedly installed on the slider (5). A first arc-shaped rack (7) is fixedly installed at one end of the positioning rod (6). The top of the first arc-shaped rack (7) is fixedly connected to the bottom of the horizontal plate (8). A servo motor (20) is fixedly installed on the arc plate (2), and a first bevel gear (21) is fixedly installed on the output shaft of the servo motor (20). Two support blocks (17) are fixedly installed on the arc plate (2). The same first rotating shaft (18) is rotatably installed on the two support blocks (17). A second bevel gear (22) is fixedly installed at one end of the first rotating shaft (18). The second bevel gear (22) meshes with the first bevel gear (21). A first gear (19) is fixedly sleeved on the first rotating shaft (18), and the first gear (19) meshes with the first arc-shaped rack (7).

3. The tunnel signal transmitting device based on signal enhancement technology as described in claim 2, characterized in that, The deployment mechanism includes: Two arc-shaped mounting brackets (23) are welded onto the base (1), and a second connecting block (25) is fixedly installed on each of the two arc-shaped mounting brackets (23). Two first connecting blocks (24) are fixedly installed on the inner walls of the two protective shells (55), and each of the two first connecting blocks (24) is hinged with a hinge frame (26). The two hinge frames (26) are respectively hinged to the two second connecting blocks (25) on the side that is close to each other. Two push blocks (27) are respectively rotated and mounted on the two hinged frames (26). Two support rods (32) are fixedly mounted on each of the two push blocks (27). The multiple support rods (32) are slidably connected to the two arc-shaped mounting frames (23). A bidirectional screw (29) is rotatably mounted on one side of the two arc-shaped mounting brackets (23) that are close to each other. Two connecting plates (31) are threaded onto the bidirectional screw (29). The two connecting plates (31) are respectively fixedly connected to a plurality of support rods (32). A second gear (30) is fixedly sleeved on the bidirectional screw (29), and the second gear (30) meshes with the first arc-shaped rack (7); Multiple telescopic rods (28) are fixedly installed on the two arc-shaped mounting brackets (23), and one end of each of the multiple telescopic rods (28) is fixedly connected to the inner wall of the two protective shells (55).

4. The tunnel signal transmitting device based on signal enhancement technology as described in claim 1, characterized in that, The housing (10) has multiple through holes, all of which are located outside the two cables (16). The base (1) has an arc surface on one side for fitting the tunnel wall.

5. The tunnel signal transmitting device based on signal enhancement technology as described in claim 1, characterized in that, Both protective shells (55) are arc-shaped, and the base (1) has two rectangular holes (54) for transporting the base (1).

6. The tunnel signal transmitting device based on signal enhancement technology as described in claim 1, characterized in that, Both of the protective shells (55) are provided with a plurality of first balls, which are used to roll on the tunnel wall.

7. The tunnel signal transmitting device based on signal enhancement technology as described in claim 1, characterized in that, The bracket (11) has two openings, both of which are used to save on the material used to make the bracket (11).

8. The tunnel signal transmitting device based on signal enhancement technology as described in claim 2, characterized in that, The first arc-shaped rack (7) is made of stainless steel and is in contact with the arc-shaped plate (2).

9. The tunnel signal transmitting device based on signal enhancement technology as described in claim 3, characterized in that, Each of the two arc-shaped mounting brackets (23) has a triangular support on one side that is close to each other, and the two triangular support parts are used to support the two arc-shaped mounting brackets (23) respectively.

10. The tunnel signal transmitting device based on signal enhancement technology as described in claim 1, characterized in that, Two fixing plates (53) for fixing the protective shell (55) are fixedly installed on each of the two protective shells (55), and each of the fixing plates (53) has mounting holes for mounting bolts.

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