A prefabricated road panel connection device

Abstract

This invention belongs to the field of precast road panel technology, specifically a precast road panel connecting device, including a precast road panel; each of the four sides of the precast road panel has a first groove; the side wall of the first groove has a second groove; a positioning plate is slidably connected inside a pair of corresponding first grooves; by utilizing the multiple sets of first grooves on the top of the precast road panel, workers can easily and quickly install the positioning plate. The positioning plate is inserted into a pair of first grooves on the surface of the precast road panel to limit the distance between them. Combined with the squeezing effect of the extrusion plate, the positioning plate is kept stable. After cement is filled inside the precast road panel, the position of the positioning plate is defined by the drying of the cement. This reduces the cumbersome operation of connecting multiple sets of precast road panels with bolts, and also reduces the difficulty of bolt installation caused by the operating angle.

Description

Technical Field

[0001] This invention belongs to the field of prefabricated road panel technology, specifically a prefabricated road panel connection device. Background Technology

[0002] Precast pavement is a type of road surface in modern society that is paved with precast concrete slabs or precast concrete bricks. Compared with traditional pavement, it is easier and simpler to lay. However, due to its splicing structure, it is often used as a temporary road surface.

[0003] Currently, precast road panels are divided into precast cement panels and spliced ​​panels depending on the application scenario. Cement panels are often heavy, while spliced ​​panels take advantage of their light weight and can be assembled on the construction site and then filled with cement.

[0004] In use, bolts are often used to fix prefabricated road panels together when assembling them. When dealing with a large number of prefabricated road panels, the operation of tightening the bolts is cumbersome. Furthermore, the installation of bolts at the angle between multiple sets of prefabricated road panels is also inconvenient due to the limited space. Therefore, a prefabricated road panel connection device is proposed to address the above problems. Summary of the Invention

[0005] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.

[0006] The technical solution adopted by the present invention to solve its technical problem is as follows: A precast road panel connecting device is used to connect precast road panels; a first groove is formed on each of the four side walls of the precast road panel; a second groove is formed on the side wall of the first groove; the device includes a positioning plate; the positioning plate is slidably connected inside the first groove; a first rotating shaft is rotatably connected to the side wall of the first groove; the first rotating shaft and the first groove are connected by a torsion spring; an extrusion plate is fixedly connected to the side wall of the first rotating shaft; the side wall of the extrusion plate and the side wall of the first groove are connected... During operation, this step utilizes the multiple sets of No. 1 sliding grooves on the top of the precast road panel to facilitate quick installation of the positioning plate by workers. The positioning plate is inserted into a pair of No. 1 sliding grooves on the surface of the precast road panel to limit the distance between them. Combined with the squeezing effect of the extrusion plate, the positioning plate is kept stable. After cement is filled into the precast road panel, the position of the positioning plate is determined by the drying of the cement. This reduces the cumbersome operation of connecting multiple sets of precast road panels with bolts, and also reduces the difficulty of bolt installation caused by the operating angle.

[0007] Preferably, the top of the positioning plate has a No. 3 sliding groove; a positioning ring is fixedly connected between the pair of precast road panels and below the positioning plate; a pin is slidably connected inside the No. 3 sliding groove; a pair of limiting blocks are fixedly connected to the bottom side wall of the pin; a No. 4 sliding groove is opened on the top surface of the positioning ring; a through groove of the same shape and size as the limiting block is opened on the top surface of the No. 4 sliding groove; a limiting groove is opened on the middle side wall of the No. 4 sliding groove; the diameter of the limiting groove is larger than the diameter; a pair of No. 1 positioning grooves are opened on the side wall of the limiting groove; the No. 1 positioning groove and the through groove on the top surface of the No. 4 sliding groove are arranged in a cross shape; the bottom of the pin slides inside the No. 4 sliding groove; during operation, this step utilizes the fixing effect between the pin and the positioning ring, and the limiting block is limited by the presence of the limiting groove, keeping the end of the pin inside the positioning ring, so that the top of the pin contacts the No. 3 sliding groove, restricting the lateral movement of the positioning plate, increasing the fixing effect of the positioning plate on the precast road panel, reducing the occurrence of sliding of the positioning plate, and improving the stability of the precast road panel after installation.

[0008] Preferably, a slide rail is fixedly connected to the middle side wall of the limiting groove; multiple sets of support plates are slidably connected to the middle of the slide rail; the slide rail and the support plates are connected by springs; an inclined groove is opened at the bottom of the limiting block; the angle of the inclined groove is the same as the angle of the top surface of the support plate; during operation, this step utilizes the supporting effect of the springs between the support plates and the slide rail to push the limiting block side wall when it is located inside the first positioning groove, thereby increasing the friction between the limiting block and the side wall of the first positioning groove, reducing the possibility of loosening between the limiting block and the first positioning groove, which would weaken the pin fixing effect and prevent the pin from jumping under external influences and losing contact with the positioning ring.

[0009] Preferably, the top of the pin has a fifth sliding groove; a sliding block is slidably connected inside the fifth sliding groove; the fifth sliding groove and the sliding block are connected by a spring; a rotating rod is rotatably connected to the top of the sliding block; lifting rings are fixed to the side walls at both ends of the rotating rod; a pair of blocking grooves are provided on the top of the positioning plate at the side wall of the third sliding groove; during operation, this step utilizes the movable effect, which can be changed according to the usage requirements during the installation of the pin, thereby facilitating the installation and disassembly of the pin by the staff, improving the portability of the equipment, and improving the installation and disassembly efficiency.

[0010] Preferably, support blocks are fixed to both ends of the rotating rod; the ends of the support blocks contact the sidewalls of the blocking groove; rubber plates are fixed to both the upper and lower surfaces of the blocking groove sidewalls; the ends of the rubber plates contact the sidewalls of the support blocks; and the sidewalls of the rubber plates are provided with blocking plates. During operation, this step utilizes the supporting effect of the rubber plates and blocking plates to support and fix the upper and lower surfaces of the support block, keeping the rotating rod in a stable state and reducing the risk of subsequent rotation of the rotating rod, which could obstruct the normal passage of vehicles and pedestrians due to the top surface of the positioning plate at the top of the lifting ring.

[0011] Preferably, each of the multiple sets of rubber plates has a No. 6 sliding groove in the middle; multiple sets of rubber pads are fixed to the surface of the barrier plate; the rubber pads are in contact with the No. 6 sliding groove; during operation, this step utilizes the contact effect between the rubber pads on the barrier plate and the No. 6 sliding groove to obtain a jerking effect during the rotation of the rotating rod, reminding the operator whether the rotating rod is in a rotating state, and at the same time increasing the stability of the rotating rod.

[0012] Preferably, a second rotating shaft is rotatably connected to the bottom of the fourth sliding groove; a positioning block is fixedly connected to the top of the second rotating shaft; a second positioning groove is opened at the bottom end of the pin; the positioning block can be inserted into the second positioning groove; during operation, this step utilizes the connection effect between the positioning block and the second positioning groove to increase the stability of the pin inside the fourth sliding groove, and during the rotation of the pin, the friction between the positioning block and the second positioning groove increases, thereby improving the stability of the equipment.

[0013] Preferably, a first magnet is fixedly connected to the side wall of the first positioning groove inside the positioning ring; a second magnet is fixedly connected to the side wall of the limiting block; the first magnet and the second magnet are magnetically attracted to each other; during operation, this step utilizes the magnetic attraction between the first magnet and the second magnet to increase the fixing effect between the limiting block and the first positioning groove, increase stability, and reduce the occurrence of loosening and separation between the first positioning groove and the limiting block under external vibration.

[0014] Preferably, multiple sets of rubber blocks are fixed to both sides of the positioning plate and the side of the extrusion plate. During operation, this step utilizes the multiple sets of rubber blocks installed on the side walls of the positioning plate and the extrusion plate to increase the connection between the positioning plate and the precast road panel, thereby maintaining the fixing effect of the positioning plate on the two sets of precast road panels, reducing the occurrence of loosening, and improving stability.

[0015] Preferably, the top surface of the positioning plate is provided with a No. 7 sliding groove; the end of the lifting ring is in contact with the No. 7 sliding groove; during operation, this step utilizes the No. 7 sliding groove on the top surface of the positioning plate to facilitate the storage of the lifting ring, reduce the occurrence of the lifting ring protruding from the top of the positioning plate, and reduce the obstruction effect on vehicles or pedestrians.

[0016] The beneficial effects of this invention are:

[0017] 1. This invention provides a precast road panel connection device. By utilizing multiple sets of No. 1 sliding grooves on the top of the precast road panel, workers can quickly and easily install positioning plates. The positioning plates are inserted into a pair of No. 1 sliding grooves on the surface of the precast road panels to limit the distance between them. Combined with the squeezing effect of the extrusion plate, the positioning plates are kept stable. After cement is filled into the precast road panel, the position of the positioning plates is determined by the drying of the cement. This reduces the cumbersome operation of connecting multiple sets of precast road panels with bolts, and also reduces the difficulty of bolt installation caused by the operating angle.

[0018] 2. This invention provides a precast road panel connection device. By utilizing the fixing effect between the pin and the positioning ring, the limiting block can be limited by the presence of the limiting groove, keeping the end of the pin inside the positioning ring, and allowing the top of the pin to contact the third sliding groove, thus restricting the lateral movement of the positioning plate, increasing the fixing effect of the positioning plate on the precast road panel, reducing the occurrence of sliding of the positioning plate, and improving the stability of the precast road panel after installation. Attached Figure Description

[0019] The accompanying drawings, which are included to provide a further understanding of the invention and form part of this application, illustrate exemplary embodiments of the invention and, together with their description, serve to explain the invention and do not constitute an undue limitation thereof. In the drawings:

[0020] Figure 1 This is a perspective view of the present invention;

[0021] Figure 2 This is a perspective view of the prefabricated road panel of the present invention;

[0022] Figure 3 This is a perspective view of the positioning plate of the present invention;

[0023] Figure 4 This is a schematic diagram of the positioning plate of the present invention;

[0024] Figure 5 This is a schematic diagram of the positioning ring of the present invention;

[0025] Figure 6 This is a perspective view of the sliding block of the present invention;

[0026] Figure 7 This is a perspective view of the support block of the present invention;

[0027] Legend: 1. Precast pavement panel; 11. No. 1 chute; 12. No. 2 chute; 13. Positioning plate; 14. Extrusion plate; 15. No. 1 pivot; 2. No. 3 chute; 21. Positioning ring; 22. Pin; 23. No. 1 positioning groove; 24. Limiting block; 25. Limiting groove; 26. No. 4 chute; 3. Slide rail; 31. Support plate; 32. Inclined groove; 4. No. 5 chute; 41. Rotating rod; 42. Lifting ring; 43. Barrier groove; 44. Sliding block; 5. Support block; 51. Rubber plate; 52. Barrier plate; 6. No. 6 chute; 61. Rubber pad; 7. No. 2 pivot; 71. Positioning block; 72. No. 2 positioning groove; 8. No. 1 magnet; 81. No. 2 magnet; 9. Rubber block; 101. No. 7 chute. Detailed Implementation

[0028] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0029] Please see Figure 1-7As shown, a precast road panel connecting device includes a precast road panel 1; each of the four sides of the precast road panel 1 has a first groove 11; a second groove 12 is formed on the side wall of the first groove 11; a pair of corresponding first grooves 11 are slidably connected to the interior of the first groove 11; a first rotating shaft 15 is rotatably connected to the side wall of the first groove 11; the first rotating shaft 15 and the first groove 11 are connected by a torsion spring; an extrusion plate 14 is fixedly connected to the side wall of the first rotating shaft 15; the side wall of the extrusion plate 14 contacts the side wall of the first groove 11; during operation, when workers assemble multiple sets of precast road panels 1, the multiple sets of first grooves 11 on the side wall of the precast road panel 1 can be used for the insertion of the positioning plates 13, so that each set of precast road panels 1 is connected to the positioning plates 13 for splicing, and the first grooves 11 on the surface of the precast road panel 1 can restrict the two ends of the positioning plates 13. 13. Maintain a normal distance between a pair of precast road panels 1. During the insertion of the positioning plate 13, the torsion spring of the first rotating shaft 15 can cause the extrusion plate 14 to tilt and contact the positioning plate 13. At this time, the torsion spring will cause the positioning plate 13 to extrude a squeezing effect on the extrusion plate 14, increasing the positioning effect of the positioning plate 13. This step utilizes the opening of multiple sets of first sliding grooves 11 on the top of the precast road panel 1 to facilitate the quick installation of the positioning plate 13 by workers. By inserting the positioning plate 13 into the first sliding grooves 11 on the surface of a pair of precast road panels 1, the distance between the two is limited. Combined with the squeezing effect of the extrusion plate 14 on the positioning plate 13, the positioning plate 13 is kept stable. After cement is filled into the precast road panel 1, the position of the positioning plate 13 is limited by the drying of the cement. This reduces the cumbersome operation of connecting multiple sets of precast road panels 1 with bolts, and also reduces the difficulty of bolt installation caused by the operating angle.

[0030] Please see Figure 3-6As shown, the top of the positioning plate 13 has a third sliding groove 2; a positioning ring 21 is fixedly connected between a pair of precast road panels 1 and below the positioning plate 13; a pin 22 is slidably connected inside the third sliding groove 2; a pair of limiting blocks 24 are fixedly connected to the bottom side wall of the pin 22; a fourth sliding groove 26 is opened on the top surface of the positioning ring 21; a through groove of the same shape and size as the limiting block 24 is opened on the top surface of the fourth sliding groove 26; a limiting groove 25 is opened on the middle side wall of the fourth sliding groove 26; the diameter of the limiting groove 25 is larger than the diameter of the fourth sliding groove 26; a pair of first positioning grooves 23 are opened on the side wall of the limiting groove 25; the first positioning groove 23 and the through groove on the top surface of the fourth sliding groove 26 are arranged in a cross shape; the bottom of the pin 22 slides inside the fourth sliding groove 26; during operation, after the worker installs the positioning plate 13, the pin 22 can be inserted into the groove. During installation, the pin 22 drives the limiting block 24 into the fourth sliding groove 26 at the top of the positioning ring 21 through the through groove on the top surface of the fourth sliding groove 26. Then, the operator can rotate the pin 22 to move the limiting block 24 into the limiting groove 25. After moving to the position of the positioning groove 23, it moves downward to restrict the left and right movement of the limiting block 24. This step utilizes the fixing effect between the pin 22 and the positioning ring 21 to limit the limiting block 24 through the existence of the limiting groove 25, keeping the end of the pin 22 inside the positioning ring 21, so that the top of the pin 22 contacts the third sliding groove 2, restricting the lateral movement of the positioning plate 13, increasing the fixing effect of the positioning plate 13 on the precast road panel 1, reducing the occurrence of slippage of the positioning plate 13, and improving the stability of the precast road panel 1 after installation.

[0031] Please see Figure 5-6As shown, a slide rail 3 is fixedly connected to the middle side wall of the limiting groove 25; multiple sets of support plates 31 are slidably connected to the middle of the slide rail 3; the slide rail 3 and the support plates 31 are connected by springs; an inclined groove 32 is opened at the bottom of the limiting block 24; the angle of the inclined groove 32 is the same as the angle of the top surface of the support plate 31; during operation, when the worker installs the pin 22, the slide rail 3 installed on the side wall of the limiting groove 25 can provide a pushing effect on the support plate 31 under the support of the springs. When the worker rotates the pin 22 to make the limiting block 24 enter the first positioning groove 23, the pushing effect of the support plate 31 can make the limiting block 24 lock. The first positioning groove 23 is inserted into the interior, and the inclined grooves 32 opened on the top of the support plate 31 and the bottom of the limiting block 24 are at the same angle, which allows the limiting block 24 to pass smoothly when it moves downward. This step utilizes the supporting effect of the spring between the support plate 31 and the slide rail 3 to push the limiting block 24 against the side wall when it is inside the first positioning groove 23, thereby increasing the friction between the limiting block 24 and the side wall of the first positioning groove 23, reducing the possibility of loosening between the limiting block 24 and the first positioning groove 23, which would weaken the fixing effect of the pin 22, and thus prevent the pin 22 from jumping under external influences and losing contact with the positioning ring 21.

[0032] Please see Figure 3-7 As shown, the top of the pin 22 has a fifth sliding groove 4; a sliding block 44 is slidably connected inside the fifth sliding groove 4; the fifth sliding groove 4 and the sliding block 44 are connected by a spring; a rotating rod 41 is rotatably connected to the top of the sliding block 44; lifting rings 42 are fixed to the side walls at both ends of the rotating rod 41; a pair of blocking grooves 43 are provided on the top of the positioning plate 13 at the side wall of the third sliding groove 2; during operation, when the worker is installing the pin 22, the rotating rod 41 connected to the lifting ring 42 can rotate according to the direction of the worker's hand rotation. At this time, the movable effect of the sliding block 44, in conjunction with the presence of the lifting ring 42, can drive the pin 22 to move as a whole. At the same time, the spring between the sliding block 44 and the fifth slide groove 4 can cause the sliding block 44 to return to the inside of the fifth slide groove 4 after the pin 22 is installed, keeping the top of the sliding block 44 flush with the top of the positioning plate 13. This step utilizes the movable effect of the sliding block 44, which can change the movement effect of the sliding block 44 according to the usage requirements during the installation of the pin 22, thereby facilitating the installation and disassembly of the pin 22 by the staff, improving the portability of the equipment, and improving the installation and disassembly efficiency.

[0033] Please see Figure 7As shown, support blocks 5 are fixed to both ends of the rotating rod 41; the end of the support block 5 contacts the side wall of the blocking groove 43; rubber plates 51 are fixed to both the upper and lower surfaces of the blocking groove 43; the end of the rubber plate 51 contacts the side wall of the support block 5; the side wall of the rubber plate 51 is provided with a blocking plate 52; during operation, after the rotating rod 41 rotates, the support block 5 and the rubber plate 51 can be positioned between a pair of rubber plates 51 after contact. Through the supporting effect of the rubber plate 51 and the blocking plate 52, the positioning effect of the support block 5 is maintained, the limit of the rotating rod 41 is increased, and the subsequent rotation angle of the rotating rod 41 is kept stable. This step utilizes the supporting effect of the rubber plate 51 and the blocking plate 52 to support and fix the upper and lower surfaces of the support block 5, keeping the rotating rod 41 in a stable state and reducing the subsequent rotation of the rotating rod 41, which would cause the lifting ring 42 to rise above the top surface of the positioning plate 13, obstructing the normal passage of vehicles and pedestrians.

[0034] Please see Figure 7 As shown, each of the multiple sets of rubber plates 51 has a sixth sliding groove 6 in its middle; multiple sets of rubber pads 61 are fixed to the surface of the barrier plate 52; the rubber pads 61 are in contact with the sixth sliding groove 6; during operation, when the worker's hand is in contact with the lifting ring 42, the rotating rod 41 will drive the support block 5 to push the rubber plate 51 to move on the barrier plate 52 during rotation. At this time, the sixth sliding groove 6 will contact the multiple sets of rubber pads 61, so that the rotating rod 41 obtains a jerking effect during rotation. This step utilizes the contact effect between the rubber pads 61 on the barrier plate 52 and the sixth sliding groove 6 to obtain a jerking effect during the rotation of the rotating rod 41, reminding the worker whether the rotating rod 41 is in a rotating state, and at the same time increasing the stability of the rotating rod 41.

[0035] Please see Figure 5-6 As shown, the bottom of the fourth slide groove 26 is rotatably connected to the second rotating shaft 7; the top of the second rotating shaft 7 is fixedly connected to the positioning block 71; the bottom end of the pin 22 is provided with the second positioning groove 72; the positioning block 71 can be inserted into the second positioning groove 72; during operation, as the pin 22 is inserted into the fourth slide groove 26, the 27 on the bottom of the pin 22 allows the positioning block 71 to be inserted. Through the connection between the positioning block 71 and the second positioning groove 72, the position of the pin 22 is kept stable. As the pin 22 rotates, the positioning block 71 can rotate with the second positioning groove 72, increasing the friction between the positioning block 71 and the second positioning groove 72. This step utilizes the connection between the positioning block 71 and the second positioning groove 72 to increase the stability of the pin 22 inside the fourth slide groove 26. Furthermore, the increased friction between the positioning block 71 and the second positioning groove 72 during the rotation of the pin 22 improves the stability of the equipment.

[0036] Please see Figure 5-6 As shown, a first magnet 8 is fixedly attached to the side wall of the first positioning groove 23 inside the positioning ring 21; a second magnet 81 is fixedly attached to the side wall of the limiting block 24; the first magnet 8 and the second magnet 81 are magnetically attracted to each other; during operation, when the limiting block 24 and the side wall of the first positioning groove 23 come into contact, the magnetic attraction between the first magnet 8 and the second magnet 81 between the first positioning groove 23 and the limiting block 24 can fix the position of the limiting block 24 and maintain the connection between the two. This step utilizes the magnetic attraction between the first magnet 8 and the second magnet 81 to increase the fixing effect between the limiting block 24 and the first positioning groove 23, increase stability, and reduce the occurrence of loosening and separation between the first positioning groove 23 and the limiting block 24 under external vibration.

[0037] Please see Figure 4 As shown, multiple sets of rubber blocks 9 are fixed to both side walls of the positioning plate 13 and the side wall of the extrusion plate 14. During operation, when the worker is installing the positioning plate 13, the rubber blocks 9 installed on both side walls of the positioning plate 13 can come into contact with the rubber blocks 9 installed on the side wall of the extrusion plate 14, increasing the friction between the positioning plate 13 and the extrusion plate 14. This step, by utilizing the multiple sets of rubber blocks 9 installed on the side walls of the positioning plate 13 and the extrusion plate 14, can increase the connection effect between the positioning plate 13 and the precast road panel 1, thereby maintaining the fixing effect of the positioning plate 13 on the two sets of precast road panels 1, reducing the occurrence of loosening, and improving stability.

[0038] Please see Figure 3 As shown, the top surface of the positioning plate 13 is provided with a No. 7 sliding groove 101; the end of the lifting ring 42 is in contact with the No. 7 sliding groove 101; during operation, the No. 7 sliding groove 101 on the top surface of the positioning plate 13 can be used to store the end of the lifting ring 42 after the operator's hand is removed from contact with the lifting ring 42, keeping the top of the rotating rod 41 and the top of the positioning plate 13 in a parallel state. This step, by utilizing the No. 7 sliding groove 101 on the top surface of the positioning plate 13, facilitates the storage of the lifting ring 42, reduces the occurrence of the lifting ring 42 protruding from the top of the positioning plate 13, and reduces the obstruction effect on vehicles or pedestrians.

[0039] Working principle: During the assembly and splicing of multiple sets of prefabricated road panels 1, multiple sets of No. 1 sliding grooves 11 opened on the side wall of the prefabricated road panel 1 allow the positioning plates 13 to be inserted, so that each set of prefabricated road panels 1 is connected to the positioning plates 13 for splicing. The No. 1 sliding grooves 11 on the surface of the prefabricated road panel 1 can restrict the two ends of the positioning plates 13, and the positioning plates 13 maintain the normal spacing between a pair of prefabricated road panels 1. At the same time, during the insertion of the positioning plates 13, the torsion spring of the No. 1 rotating shaft 15 can drive the pressing plate 14 to tilt and contact the positioning plate 13. At this time, the torsion spring will cause the positioning plate 13 to exert a pressing effect on the pressing plate 14, increasing the positioning of the positioning plate 13. After the staff installs the positioning plate 13, the pin 22 can be installed. Through the through slot on the top surface of the fourth slide groove 26, the pin 22 can drive the limiting block 24 into the fourth slide groove 26 at the top of the positioning ring 21. Then, the staff can rotate the pin 22 to move the limiting block 24 into the limiting groove 25. After moving to the position of the positioning groove 23, it moves downward to restrict the left and right movement of the limiting block 24. When the staff rotates the pin 22 to make the limiting block 24 enter the first positioning groove 23, the pushing effect of the support plate 31 can make the limiting block 24 lock into the first positioning groove 23. The angle of the inclined groove 32 opened on the top of the support plate 31 and the bottom of the limiting block 24 is the same. Similarly, the limit block 24 can pass smoothly when it moves downward. During the installation of the pin 22, the rotating rod 41 connected to the lifting ring 42 can rotate according to the direction of the worker's hand rotation. At this time, the movable effect of the sliding block 44 can work with the presence of the lifting ring 42 to drive the pin 22 to move as a whole. At the same time, the spring between the sliding block 44 and the fifth slide groove 4 can return the sliding block 44 to the inside of the fifth slide groove 4 after the pin 22 is installed, keeping the top of the sliding block 44 flush with the top of the positioning plate 13. After the rotating rod 41 rotates, the support block 5 can be positioned between the pair of rubber plates 51 after contacting the rubber plate 51. Through the support effect of the rubber plate 51 and the barrier plate 52, the positioning effect of the support block 5 is maintained. By adding a limit to the rotating rod 41, the subsequent rotation angle of the rotating rod 41 is kept stable. When the worker's hand comes into contact with the lifting ring 42, the rotating rod 41 will drive the support block 5 to push the rubber plate 51 to move on the barrier plate 52 during rotation. At this time, the sixth slide groove 6 will contact multiple sets of rubber pads 61, so that the rotating rod 41 will have a jerking effect during rotation. During the process of the pin 22 being inserted into the fourth slide groove 26, the 27 opened on the bottom of the pin 22 can be used for the positioning block 71 to be inserted. Through the connection effect between the positioning block 71 and the second positioning groove 72, the position of the pin 22 is kept stable, and during the rotation of the pin 22, the positioning block 71 can rotate with the second positioning groove 72.This increases the friction between positioning block 71 and second positioning groove 72. During the contact between limiting block 24 and the side wall of first positioning groove 23, the magnetic attraction between first magnet 8 and second magnet 81 between first positioning groove 23 and limiting block 24 can fix the position of limiting block 24 and maintain the connection between the two. During the installation of positioning plate 13, the rubber blocks 9 installed on the side walls of positioning plate 13 can contact the rubber blocks 9 installed on the side wall of extrusion plate 14, increasing the friction between positioning plate 13 and extrusion plate 14. The seventh sliding groove 101 opened on the top surface of positioning plate 13 can retract the end of lifting ring 42 after the worker's hand is removed from contact with lifting ring 42, keeping the top of rotating rod 41 and the top of positioning plate 13 parallel.

[0040] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention.

Claims

1. A precast road panel connecting device, the connecting device being used to connect a precast road panel (1); a first groove (11) is provided on each of the four sides of the precast road panel (1); a second groove (12) is provided on the side wall of the first groove (11); characterized in that: The device includes a positioning plate (13); the positioning plate (13) is slidably connected inside a first slide groove (11); a first rotating shaft (15) is rotatably connected to the side wall of the first slide groove (11); the first rotating shaft (15) and the first slide groove (11) are connected by a torsion spring; a pressing plate (14) is fixedly connected to the side wall of the first rotating shaft (15); the side wall of the pressing plate (14) is in contact with the side wall of the first slide groove (11); The top of the positioning plate (13) is provided with a No. 3 sliding groove (2); a positioning ring (21) is fixedly connected between a pair of prefabricated road panels (1) below the positioning plate (13); a pin (22) is slidably connected inside the No. 3 sliding groove (2); a pair of limiting blocks (24) are fixedly connected to the bottom side wall of the pin (22); a No. 4 sliding groove (26) is provided on the top surface of the positioning ring (21); a through groove of the same shape and size as the limiting block (24) is provided on the top surface of the No. 4 sliding groove (26); a limiting groove (25) is provided on the middle side wall of the No. 4 sliding groove (26); the diameter of the limiting groove (25) is larger than the diameter of the No. 4 sliding groove (26); a pair of No. 1 positioning grooves (23) are provided on the side wall of the limiting groove (25); the No. 1 positioning groove (23) and the through groove on the top surface of the No. 4 sliding groove (26) are arranged in a cross shape; the bottom of the pin (22) slides inside the No. 4 sliding groove (26).

2. The prefabricated road panel connection device according to claim 1, characterized in that: A slide rail (3) is fixedly connected to the middle side wall of the limiting groove (25); multiple sets of support plates (31) are slidably connected in the middle of the slide rail (3); the slide rail (3) and the support plates (31) are connected by a spring; an inclined groove (32) is opened at the bottom of the limiting block (24); the angle of the inclined groove (32) is the same as the angle of the top surface of the support plate (31).

3. The prefabricated road panel connection device according to claim 1, characterized in that: The top of the pin (22) is provided with a fifth slide groove (4); a sliding block (44) is slidably connected inside the fifth slide groove (4); the fifth slide groove (4) and the sliding block (44) are connected by a spring; a rotating rod (41) is rotatably connected to the top of the sliding block (44); lifting rings (42) are fixed to the side walls at both ends of the rotating rod (41); a pair of blocking grooves (43) are provided on the top of the positioning plate (13) on the side wall of the third slide groove (2).

4. A prefabricated road panel connection device according to claim 3, characterized in that: Support blocks (5) are fixed to both sides of the rotating rod (41); the end of the support block (5) contacts the side wall of the blocking groove (43); rubber plates (51) are fixed to both the upper and lower sides of the blocking groove (43); the end of the rubber plate (51) contacts the side wall of the support block (5); the side wall of the rubber plate (51) is provided with a blocking plate (52).

5. A prefabricated road panel connection device according to claim 4, characterized in that: The middle of each of the multiple sets of rubber plates (51) is provided with a sixth sliding groove (6); multiple sets of rubber pads (61) are fixed to the surface of the barrier plate (52); the rubber pads (61) and the sixth sliding groove (6) are in contact.

6. A prefabricated road panel connection device according to claim 1, characterized in that: The bottom of the fourth slide (26) is rotatably connected to the second rotating shaft (7); the top of the second rotating shaft (7) is fixedly connected to the positioning block (71); the bottom end of the pin (22) is provided with the second positioning groove (72); the positioning block (71) can be inserted into the second positioning groove (72).

7. A prefabricated road panel connection device according to claim 1, characterized in that: The positioning ring (21) is fixed to a first magnet (8) on the side wall of the first positioning groove (23); the limiting block (24) is fixed to a second magnet (81); the first magnet (8) and the second magnet (81) attract each other.

8. A prefabricated road panel connection device according to claim 1, characterized in that: Multiple sets of rubber blocks (9) are fixed to both sides of the positioning plate (13) and the side of the extrusion plate (14).

9. A prefabricated road panel connection device according to claim 3, characterized in that: The top surface of the positioning plate (13) is provided with a No. 7 sliding groove (101); the end of the lifting ring (42) is in contact with the No. 7 sliding groove (101).

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