Prefabricated concrete bridge hollow slab

Abstract

The invention relates to the technical field of prefabricated parts, in particular to a prefabricated concrete bridge hollow slab which comprises a hollow slab body, end connecting piers and end connecting frames, two round holes are formed in the hollow slab body, the end connecting piers are arranged at the two ends of the hollow slab body, two butt joint holes are formed in each end connecting pier, and the end connecting frames are arranged on the end connecting piers. A butt joint hole is formed in the hollow plate body, two positioning plates are fixedly installed in the butt joint hole, a connecting assembly is arranged on the hollow plate body, the end connecting frames are arranged at the two ends of the hollow plate body, positioning mechanisms are arranged on the end connecting frames, auxiliary alignment mechanisms are arranged on the end connecting frames, and detection auxiliary assemblies are arranged on the end connecting frames; by arranging the end connecting piers and the connecting assemblies, when the hollow plate body is erected, the hollow plate body and the end connecting piers are installed in an aligned mode through the connecting assemblies, when the hollow plate body is installed, the installation position of the hollow plate body can be limited, the installation position of the hollow plate body is prevented from deviating, and the installation efficiency of the hollow plate body is improved. And the overall mounting effect of the hollow slab body is improved.

Description

Technical Field

[0001] The invention relates to the technical field of prefabricated parts, and in particular to a prefabricated concrete bridge hollow slab. Background Art

[0002] Precast hollow slab for bridge is a precast concrete slab with a hollow part inside. This structural design is mainly to reduce the deadweight and improve the utilization rate of materials while ensuring the structural strength;

[0003] Usually, when installing prefabricated hollow slabs on bridges, it is necessary to use an external crane to lift them onto the installed piers for placement. During the process of lifting the prefabricated hollow slabs on the piers for placement, it is necessary to ensure that the positions of the two ends of the prefabricated hollow slabs are equal to the edges of the piers. When the hollow slabs are placed, they are mainly adjusted by manual marking and visual observation. The placement and installation of the hollow slabs are very inconvenient, and the temporarily placed hollow slabs may be offset due to collisions and other reasons during the subsequent lifting process. At the same time, after the hollow slabs are placed, external debris may fall into the hinged joint between the hollow slab and the adjacent hollow slabs, thereby affecting the subsequent hinged joint casting effect. The overall installation effect of the prefabricated hollow slabs needs to be further improved. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings in the prior art and to propose a prefabricated concrete bridge hollow slab.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A precast concrete bridge hollow slab comprises a hollow slab body, an end pier and an end connection frame, wherein the hollow slab body is provided with two circular holes, the end piers are arranged at two end positions of the hollow slab body, the end piers are provided with two docking holes, two positioning plates are fixedly installed inside the docking holes, the hollow slab body is provided with a connection assembly, the end connection frame is arranged at two end positions of the hollow slab body, the end connection frame is provided with a positioning mechanism, the end connection frame is provided with an auxiliary alignment mechanism, and the end connection frame is provided with a detection auxiliary assembly;

[0007] The connection assembly includes an embedded frame, which is arranged on one side of the hollow plate body, a hinged sealing plate is rotatably installed inside the embedded frame, an embedded cylinder is fixedly installed at the circular hole on the hollow plate body, and a spring and a positioning cylinder are arranged inside the embedded cylinder;

[0008] The auxiliary alignment mechanism includes an external pressure platform, which is movably mounted on the end of the terminal frame away from the hollow plate body, a distance sensor 2 is fixedly mounted on the terminal frame, two sets of driving arms are rotatably mounted on the terminal frame, and a mounting platform and a contact sensor are arranged on the driving arms;

[0009] The detection auxiliary component includes a top frame, which is fixedly installed on the top of the termination frame. Pressure shafts are fixedly installed on both sides of the bottom of the termination frame. An external support shaft and a detection shaft plate are movably installed inside the top frame. A detection box, a ball bearing and a distance sensor are arranged at the bottom of the detection shaft plate.

[0010] Preferably, the hinged seam sealing plate is rotatably installed inside the embedded frame through a rotating shaft and a torsion spring, an annular groove is opened inside the embedded tube, the alignment tube is slidably installed inside the embedded tube, three springs are fixedly installed inside the embedded tube, and one end of spring one is fixedly connected to the alignment tube.

[0011] Preferably, the positioning mechanism comprises an extension tube, which is fixedly mounted on a terminal frame, a mounting hole for mounting the extension tube is provided on the terminal frame, a mounting tube is movably mounted on one side of the extension tube, and an outward push column is movably mounted inside the mounting tube.

[0012] Preferably, the positioning mechanism further comprises limit plates, three groups of limit plates are movably mounted inside the mounting tube, three groups of movable arms are rotatably mounted on the push-out columns, and the movable arms are rotatably connected to the limit plates.

[0013] Preferably, the auxiliary alignment mechanism also includes spring four, five springs four are fixedly mounted on the termination frame, one end of the spring four is fixedly connected to the external pressure platform, and the detection plate is fixedly mounted on the side of the external pressure platform close to the termination frame.

[0014] Preferably, the auxiliary alignment mechanism also includes a movable roller, which is rotatably mounted on the mounting platform, on which four springs three are fixedly mounted, one end of which is fixedly connected to the driving arm, a driving assembly is arranged on the terminal frame, the mounting platform is slidably mounted on the driving arm, and the contact sensor is fixedly mounted on the driving arm.

[0015] Preferably, the outer support shaft is rotatably installed inside the top frame, the outer support shaft is also driven by a driving assembly, the detection axis plate is rotatably installed inside the top frame, one end of the outer support shaft is movably connected to the detection axis plate, the detection box is evenly arranged at the bottom of the detection axis plate, the detection box is movably installed on the detection axis plate, and the distance sensor is fixedly installed inside the detection box.

[0016] Preferably, the detection auxiliary component also includes a movable frame, which is slidably installed inside the detection box, and the ball is rotatably installed inside the movable frame. Spring 2 is fixedly installed inside the detection box, one end of spring 2 is fixedly connected to the movable frame, and a mounting block is fixedly installed at one end of the movable frame.

[0017] Preferably, the driving assembly includes gear 1, which is rotatably mounted on both ends of the terminal frame, and two gears 2 are rotatably mounted on the terminal frame, and gear 2 is meshed with gear 1, and gear 2 is fixedly connected to the corresponding driving arm, and support arms are movably mounted on both sides of the terminal frame, and one end of the support arm is movably connected to the driving arm.

[0018] Preferably, the driving assembly also includes bevel gear one, which is rotatably mounted on one side of the terminal frame on which an external support shaft is provided, and is fixedly mounted on gear one, and bevel gear two is rotatably mounted on one side of bevel gear one, and bevel gear two is meshed with bevel gear one, and bevel gear two is fixedly connected to the external support shaft.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] The present invention is provided with an end connecting pier and a connecting assembly. The end connecting pier is installed on the pier. When the hollow slab body is installed, the hollow slab body and the end connecting pier are installed in alignment through the connecting assembly. When the hollow slab body is installed, the installation position of the hollow slab body can be limited to avoid displacement of the installation position of the hollow slab body, and at the same time, the stability of the hollow slab body after installation is guaranteed. At the same time, the connecting assembly can cooperate with the detection auxiliary assembly to realize horizontality detection with the hollow slab body installed on the adjacent side to ensure the installation horizontality of the hollow slab body. At the same time, during the detection, the connecting assembly is cooperated to realize the shielding of the hinged joint between the two groups of hollow slab bodies to avoid the problem of foreign debris falling into the hinged joint before pouring and affecting the later pouring. At the same time, the auxiliary alignment mechanism can assist the alignment installation of the hollow slab body between the two end connecting piers to improve the overall installation effect of the hollow slab body.

[0021] The present invention is provided with a connecting component. When the hollow slab body is mounted on the bridge pier, the end connecting piers are pre-installed on the piers on both sides. The end connecting piers on both sides can be limited from the two end positions of the hollow slab body to avoid position deviation of the hollow slab body during installation. After the hollow slab body is aligned, the connection and positioning between the hollow slab body and the end connecting piers can be achieved through a spring, an alignment cylinder, a docking hole and a positioning plate to avoid movement and deviation of the hollow slab body after the installation is completed. At the same time, a hinged seam sealing plate provided on one side of the hollow slab body that is close to the installed hollow slab body on the adjacent side can be flipped to contact with the installed hollow slab body on the adjacent side to shield the hinged seam between the two groups of hollow slab bodies, to avoid debris falling into the hinged seam before pouring and affecting the later pouring effect.

[0022] The present invention is provided with an auxiliary alignment mechanism, when the hollow plate body is mounted between the two end connecting piers on the piers on both sides, during the process of hoisting the hollow plate body downward, the driving arms on both sides of the end positions of the hollow plate body are rotated and the mounting platform is rotated and unfolded. When the system receives the contact signal fed back by the contact sensor, it indicates that the mounting platforms on both sides of the terminal frame are in contact with the two sides of the hollow plate body, and the hollow plate body is initially positioned between the two end connecting piers. Subsequently, it is adjusted by an external crane to make the distances between the two end portions of the hollow plate body and the two end connecting piers equal. During the process of hoisting the hollow plate body downward, the external pressing platforms at the two end positions of the hollow plate body are in contact with the end connecting piers. The distance between the external pressing platform and the detection plate detected by the distance sensor 2 at the same time reflects the degree of squeezing of the external pressing platform, thereby feeding back whether the distances between the two ends of the hollow plate body and the end connecting piers are equal, and fine-tuning is performed according to the distance difference, so as to ensure that the installation position of the hollow plate body is accurate and the installation effect of the hollow plate body is improved.

[0023] The present invention is provided with a detection auxiliary component. When the hollow plate body is installed, the hinge sealing plate is squeezed toward the inner side of the embedded frame by the pressing axis to make it rotate and retract into the embedded frame. When the hollow plate body is hoisted downward, the driving component drives the outer support shaft to rotate and expand. When the outer support shaft is expanded, the detection axis plate is driven to expand synchronously. After the expansion, the detection axis plate contacts the top of the hollow plate body installed on the adjacent side through the ball bearing. At the same time, the multi-point distance sensor is used to detect the distance data between the feedback and the installation block to reflect whether the hollow plate body is on the same horizontal plane with the hollow plate body installed on the adjacent side when hoisting, so as to ensure the horizontality of the installation of the hollow plate body. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 A schematic diagram of the structure of a precast concrete bridge hollow slab proposed by the present invention;

[0025] Figure 2 A schematic diagram of the installation of a hollow slab body and an end pier in a precast concrete bridge hollow slab proposed by the present invention;

[0026] Figure 3 A schematic diagram of the structure of a connection assembly in a precast concrete bridge hollow slab proposed by the present invention;

[0027] Figure 4 This is a schematic diagram of the installation of an alignment tube in a precast concrete bridge hollow slab proposed by the present invention;

[0028] Figure 5 This is a schematic diagram of the installation of a positioning plate in a precast concrete bridge hollow slab proposed by the present invention;

[0029] Figure 6 This is a schematic diagram of assembling two sets of hollow slab bodies in a precast concrete bridge hollow slab proposed by the present invention;

[0030] Figure 7 A schematic diagram of the installation of a hollow slab body and an end pier in a precast concrete bridge hollow slab proposed by the present invention;

[0031] Figure 8 This is a schematic diagram of the installation of a detection auxiliary component in a precast concrete bridge hollow slab proposed by the present invention;

[0032] Fig. 9 A schematic diagram of the structure of a driving assembly in a precast concrete bridge hollow slab proposed by the present invention;

[0033] Fig.10 A schematic diagram of the structure of a precast concrete bridge hollow slab proposed by the present invention;

[0034] Fig.11 This is a structural schematic diagram of an auxiliary alignment mechanism in a precast concrete bridge hollow slab proposed by the present invention;

[0035] Fig.12 This is a schematic diagram of the installation of a mounting platform in a precast concrete bridge hollow slab proposed by the present invention;

[0036] Fig.13 This is a schematic diagram of the installation of a positioning mechanism in a precast concrete bridge hollow slab proposed by the present invention;

[0037] Fig.14 The present invention is a schematic structural diagram of a positioning mechanism in a precast concrete bridge hollow slab.

[0038] In the figure: 1. hollow plate body; 11. hook; 12. embedded frame; 13. hinged joint sealing plate; 14. embedded tube; 141. spring 1; 142. alignment tube; 2. end pier; 21. docking hole; 22. positioning plate; 3. end frame; 31. pressure shaft; 32. gear 1; 33. gear 2; 34. bevel gear 1; 35. bevel gear 2; 4. top frame; 41. external support shaft; 42. detection shaft plate; 421. detection box; 42 2. Distance sensor one; 423. Movable frame; 424. Mounting block; 425. Ball; 426. Spring two; 5. Driving arm; 51. Mounting table; 52. Support arm; 53. Movable roller; 54. Contact sensor; 55. Spring three; 6. External pressure table; 61. Distance sensor two; 62. Detection plate; 63. Spring four; 7. Mounting tube; 71. Extension tube; 72. Extrapolation column; 73. Limit plate; 74. Movable arm. DETAILED DESCRIPTION

[0039] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0040] Reference Figure 1-14 A precast concrete bridge hollow slab comprises a hollow slab body 1, an end pier 2 and an end connection frame 3. The hollow slab body 1 is provided with two circular holes, and the inner hollow area of ​​the circular holes penetrates the two ends of the hollow slab body 1. The hollow slab body 1 is evenly and fixedly installed with lifting rings. The end piers 2 are arranged at the two end positions of the hollow slab body 1, and the end piers 2 are fixedly installed on the piers by fasteners. When the hollow slab body 1 is installed, the end piers 2 on both sides can assist the alignment installation of the hollow slab body 1. The end piers 2 are provided with two docking holes 21, and the positions of the docking holes 21 are opposite to the positions of the circular holes on the hollow slab body 1. The inner part of the docking holes 21 is provided with a plurality of holes. Two positioning plates 22 are fixedly installed at the bottom, and the positioning plates 22 are arc-shaped structures. A connecting component is arranged on the hollow plate body 1, and the connecting component can cooperate with the docking hole 21 and the positioning plate 22 to realize the alignment installation of the hollow plate body 1 and the end connecting pier 2. The terminal frame 3 is arranged at both ends of the hollow plate body 1, and the terminal frame 3 is connected with the adjacent lifting rings arranged on the hollow plate body 1 through the hook 11. The terminal frame 3 is evenly provided with lifting rings, and the external crane is connected with the lifting rings on the terminal frame 3 through the hook. A positioning mechanism is arranged on the terminal frame 3, and the positioning mechanism can install and position the terminal frame 3 on the hollow plate body 1, and an auxiliary alignment mechanism is arranged on the terminal frame 3 The auxiliary alignment mechanism can perform an auxiliary alignment installation operation on the hollow slab body 1 when it is installed on the bridge pier. The terminal frame 3 is provided with an auxiliary detection component. The auxiliary detection component can detect whether the hollow slab body 1 is on the same horizontal plane as the installed hollow slab body 1 on the adjacent side when the hollow slab body 1 is installed, and at the same time cooperate with the connection component to realize the shielding operation of the hinged joint between the hollow slab body 1 and the installed hollow slab body 1 on the adjacent side; by providing an end pier 2 and a connection component, the end pier 2 is installed on the bridge pier, and when the hollow slab body 1 is installed, the hollow slab body 1 and the end pier 2 are aligned and installed through the connection component, and the hollow slab body 1 is installed. The installation position of the hollow slab body 1 can be limited to avoid displacement of the installation position of the hollow slab body 1, and at the same time ensure the stability of the hollow slab body 1 after installation. At the same time, the connecting component can cooperate with the detection auxiliary component to realize the horizontality detection of the hollow slab body 1 installed on the adjacent side to ensure the installation horizontality of the hollow slab body 1. At the same time, during the detection, the connecting component is cooperated to realize the shielding of the hinged joint between the two groups of hollow slab bodies 1 to avoid the problem of foreign debris falling into the hinged joint before pouring and affecting the later pouring. At the same time, the auxiliary alignment mechanism can assist the alignment installation of the hollow slab body 1 between the two end piers 2 to improve the overall installation effect of the hollow slab body 1.

[0041] As a technical optimization solution for a precast concrete bridge hollow slab of the present invention, the connection component includes an embedded frame 12, the embedded frame 12 is arranged on one side of the hollow slab body 1, a groove for installing the embedded frame 12 is opened on the hollow slab body 1, the length of the embedded frame 12 is set according to the length of the hollow slab body 1, and a hinged seam sealing plate 13 is rotatably installed inside the embedded frame 12. The hinged seam sealing plate 13 is rotatably installed inside the embedded frame 12 through a rotating shaft and a torsion spring, the rotating shaft is fixedly installed at both ends of the embedded frame 12, and the torsion spring is sleeved on the rotating shaft. When the hollow slab body 1 is installed, the hollow slab body 1 and the adjacent The bottom positions of the installed hollow plate bodies 1 on the two sides are in contact with each other, and a hinged seam is formed between the two groups of hollow plate bodies 1. The hinged seam sealing plate 13 can be turned to a horizontal state and contact the outer wall of the installed hollow plate body 1 on the adjacent side. The hinged seam sealing plate 13 can be shielded from the hinged seam to prevent foreign debris from falling in. An embedded tube 14 is fixedly installed at the circular hole on the hollow plate body 1. After the hollow plate body 1 is produced, the hollow plate body 1 is fixed to the inside of the circular hole on the hollow plate body 1 by fasteners as an embedded part. An annular groove is opened inside the embedded tube 14. The annular groove is a groove with a circular cross-section. A positioning tube 14 is slidably installed inside the embedded tube 14 2, the alignment cylinder 142 can slide into the docking hole 21 on the end connecting pier 2, and the two positioning plates 22 in the docking hole 21 can be inserted into the alignment cylinder 142. Three springs 141 are fixedly installed inside the embedded cylinder 14, one end of the spring 141 is fixedly connected to the alignment cylinder 142, and a limiting sleeve is fixedly installed inside the embedded cylinder 14. The limiting sleeve is sleeved with the spring 141, and the limiting sleeve is sleeved with the alignment cylinder 142. By providing a connecting component, when the hollow plate body 1 is mounted on the bridge pier, the end connecting pier 2 is pre-installed on the bridge piers on both sides, and the end connecting piers 2 on both sides can be moved from the two end positions of the hollow plate body 1 The limiting function is to prevent the hollow slab body 1 from being displaced during installation. After the hollow slab body 1 is aligned, the connection and positioning between the hollow slab body 1 and the end pier 2 can be realized by means of a spring 141, an alignment cylinder 142, a docking hole 21 and a positioning plate 22, to prevent the hollow slab body 1 from moving and offsetting after installation. At the same time, the hinged seam sealing plate 13 arranged on one side of the installed hollow slab body 1 on the adjacent side of the hollow slab body 1 can be flipped to contact the installed hollow slab body 1 on the adjacent side to cover the hinged seam between the two groups of hollow slab bodies 1, to prevent debris from falling into the hinged seam before pouring and affecting the later pouring effect.

[0042] As a technical optimization solution for the hollow slab of a precast concrete bridge of the present invention, the positioning mechanism includes an extension tube 71, which is fixedly mounted on the terminal frame 3. The terminal frame 3 is provided with a mounting hole for mounting the extension tube 71. A mounting tube 7 is movably mounted on one side of the extension tube 71. The mounting tube 7 is driven by a hydraulic telescopic rod, which is electrically connected to an external controller. The mounting tube 7 can move laterally on one side of the extension tube 71. The mounting tube 7 can fit the inner wall of the embedded tube 14. An external push column 72 is movably mounted inside the mounting tube 7. The external push column 72 is driven by a hydraulic telescopic rod, which is electrically connected to an external controller. Three sets of limit plates 73 are movably mounted inside the mounting tube 7. The limit plates 73 are arc-shaped structures. The limit plates 73 can be expanded outward from the inside of the mounting tube 7. When the limit plates 73 are expanded, they can be aligned with the groove of the annular groove on the inner wall of the embedded tube 14. The locking cam 72 is provided with a plurality of locking cams 74, each of which is fixed with one of the locking cams 74 and a plurality of locking cams 76. The locking cams 74 are provided with a plurality of locking cams 76, each of which is fixed with one of the plurality of locking cams 76. The plurality of locking cams 74 are connected to the plurality of locking cams 76.

[0043] As a technical optimization solution for a precast concrete bridge hollow slab of the present invention, the auxiliary alignment mechanism includes an external pressure platform 6, which is movably mounted on the end of the terminal frame 3 away from the hollow slab body 1, and the cross-section of the external pressure platform 6 is a trapezoid. Four springs four 63 are fixedly mounted on the terminal frame 3, and one end of the spring four 63 is fixedly connected to the external pressure platform 6. A limiting short shaft is fixedly mounted on the terminal frame 3, and the limiting short shaft is sleeved with the spring four 63. The limiting short shaft is sleeved with the external pressure platform 6, and a detection plate 62 is fixedly mounted on the side of the external pressure platform 6 close to the terminal frame 3. 3 is fixedly mounted with a distance sensor 2 61, the distance sensor 2 61 is electrically connected to the external controller, and the distance sensor 2 61 can detect the distance data between the external pressure table 6, the termination frame 3 is rotatably mounted with two sets of driving arms 5, the driving arms 5 are slidably mounted with a mounting table 51, the driving arms 5 are fixedly mounted with a contact sensor 54, the contact sensor 54 is electrically connected to the external controller, four springs 3 55 are fixedly mounted on the mounting table 51, one end of the spring 3 55 is fixedly connected to the driving arm 5, a movable roller 53 is rotatably mounted on the mounting table 51, and the termination frame 3 is provided with A driving assembly is provided, and the driving assembly can realize the rotation and expansion of the driving arm 5; by providing an auxiliary alignment mechanism, when the hollow slab body 1 is mounted between the two end connecting piers 2 on the piers on both sides, during the downward hoisting of the hollow slab body 1, the driving arms 5 on both sides of the end positions of the hollow slab body 1 are rotated and the mounting platform 51 is rotated and expanded. When the system receives the contact signal fed back by the contact sensor 54, it indicates that the mounting platforms 51 on both sides of the terminal frame 3 are in contact with both sides of the hollow slab body 1. The hollow slab body 1 is initially positioned between the two end connecting piers 2, and then hoisted by the outside The machine is adjusted so that the distances between the two end portions of the hollow slab body 1 and the two end connecting piers 2 are equal. During the downward lifting process of the hollow slab body 1, the external pressing platforms 6 at the two end portions thereof are in contact with the end connecting piers 2. The distance between the external pressing platform 6 and the detection plate 62 detected by the distance sensor 61 at the same time reflects the degree of squeezing of the external pressing platform 6, thereby providing feedback on whether the distances between the two ends of the hollow slab body 1 and the end connecting piers 2 are equal, and fine-tuning is performed according to the distance difference to ensure that the installation position of the hollow slab body 1 is accurate and improve the installation effect of the hollow slab body 1.

[0044] As a technical optimization solution for the hollow slab of a precast concrete bridge of the present invention, the detection auxiliary component includes a top frame 4, which is fixedly installed on the top of the terminal frame 3, and the bottom two sides of the terminal frame 3 are fixedly installed with a pressure shaft 31, and the pressure shaft 31 can contact the hinged sealing plate 13 and squeeze it toward the inner direction of the embedded frame 12, and an external support shaft 41 is installed for rotation inside the top frame 4, and the external support shaft 41 is also driven by the driving component. A detection shaft plate 42 is installed for rotation inside the top frame 4, and one end of the external support shaft 41 is movably connected to the detection shaft plate 42, and a slider is provided at one end of the external support shaft 41, and the slider is rotatably connected to the external support shaft 41 The slider is slidably mounted on the detection shaft plate 42, and detection boxes 421 are evenly arranged at the bottom of the detection shaft plate 42. The detection box 421 is movably mounted on the detection shaft plate 42. The detection box 421 is driven by an electric telescopic rod, and the electric telescopic rod is electrically connected to the external controller. A distance sensor 422 is fixedly installed inside the detection box 421, and the distance sensor 422 is electrically connected to the external controller. A movable frame 423 is slidably mounted inside the detection box 421. The movable frame 423 is composed of a three-quarter spherical shell and a cylindrical shaft. A ball 425 is rotatably mounted inside the movable frame 423. A spring 2 426 is fixedly installed inside the box 421, one end of the spring 2 426 is fixedly connected to the movable frame 423, the spring 2 426 is sleeved with the cylindrical shaft in the movable frame 423, and a mounting block 424 is fixedly installed on one end of the movable frame 423. The distance sensor 1 422 can sense the distance between the mounting block 424, and the distance data fed back by the multiple sets of distance sensors 1 422 can reflect whether the hollow plate body 1 is installed on the same horizontal plane as the hollow plate body 1 installed on the adjacent side; by providing a detection auxiliary component, when the hollow plate body 1 is mounted, the pressing shaft 31 is pressed to the embedded frame The inner side of the frame 12 squeezes the hinged sealing plate 13 to make it rotate and retract into the embedded frame 12. When the hollow slab body 1 is hoisted downward, the driving assembly drives the outer support shaft 41 to rotate and expand. When the outer support shaft 41 expands, the detection shaft plate 42 is driven to open synchronously. After the detection shaft plate 42 is opened, it contacts the top of the hollow slab body 1 installed on the adjacent side through the ball 425. At the same time, the multi-point distance sensor 422 detects the distance data between the feedback and the installation block 424 to reflect whether the hollow slab body 1 is on the same horizontal plane with the hollow slab body 1 installed on the adjacent side when hoisting, so as to ensure the horizontality of the installation of the hollow slab body 1.

[0045] As a technical optimization solution for the hollow slab of a precast concrete bridge of the present invention, the driving component includes a gear 32, which is rotatably installed at both ends of the terminal frame 3, and the gear 32 is driven by a servo motor, and the servo motor is electrically connected to the external controller. Two gears 33 are rotatably installed on the terminal frame 3, and the gear 33 is meshed with the gear 32, and the gear 33 is fixedly connected to the corresponding driving arm 5. Support arms 52 are movably installed on both sides of the terminal frame 3, and one end of the support arm 52 is movably connected to the driving arm 5. Active blocks are provided on both sides of the support arm 52, and the active blocks on both sides of the support arm 52 are rotatably connected to the support arm 52, wherein the active block on one side is slidably connected to the driving arm 5, and the active block on the other side is slidably connected to the terminal frame 3, and hydraulic telescopic rods are provided on both sides of the terminal frame 3, and the telescopic ends of the hydraulic telescopic rods are fixedly connected to the active blocks, and a bevel gear 34 is rotatably installed on one side of the outer support shaft 41 provided on the terminal frame 3. Bevel gear 1 34 is fixedly mounted on gear 1 32, and bevel gear 2 35 is rotatably mounted on one side of bevel gear 1 34, bevel gear 2 35 meshes with bevel gear 1 34, and bevel gear 2 35 is fixedly connected to the outer support shaft 41; by providing a driving assembly, when the hollow plate body 1 is mounted, the driving arm 5 is driven to rotate and unfold by controlling the rotation of gear 1 32 and cooperating with gear 2 33 to cooperate with the end connecting pier 2 to perform preliminary alignment of the hollow plate body 1 through the mounting platform 51, the contact sensor 54 and the spring three 55. When the driving arm 5 is rotated and unfolded, the outer support shaft 41 is driven to rotate by the rotation of gear 1 32, the bevel gear 1 34 and the bevel gear two 35 to drive the detection shaft plate 42 to unfold synchronously. After the detection shaft plate 42 is unfolded, the distance sensor 1 422, the mounting block 424 and the ball 425 can be used to detect whether the hollow plate body 1 is on the same horizontal plane as the hollow plate body 1 installed on the adjacent side, so as to ensure the horizontality of the installation of the hollow plate body 1.

[0046] When the present invention is used, before the hollow slab body 1 is mounted, the end connecting piers 2 are fixed to the piers on both sides by fasteners. During installation, the installation position of the end connecting piers 2 is accurately ensured by measurement. After the installation is completed, the hollow slab body 1 and the terminal frame 3 are ready to be assembled.

[0047] During assembly, the terminal frame 3 is connected to the external crane through a hook, and the hydraulic telescopic rod is controlled to drive the installation cylinder 7 to push toward the side of the embedded cylinder 14, and the spring 141 is squeezed and retracted into the embedded cylinder 14. Subsequently, the hydraulic telescopic rod is controlled to drive the external push column 72 to push toward the inner side of the embedded cylinder 14, and the external push column 72 cooperates with the movable arm 74 to drive the limit plate 73 to expand outward and press against the groove wall of the annular groove inside the embedded cylinder 14, and the pressing shaft 31 squeezes the hinged seam sealing plate 13 and retracts it into the embedded frame 12. Subsequently, the terminal frame 3 is connected and locked with the adjacent lifting rings set on the hollow plate body 1 through the lifting hook 11. The assembly of the terminal frame 3 and the hollow plate body 1 is completed, and the installation operation of the hollow plate body 1 is ready. During installation, the external crane lifts the terminal frame 3 to lift the hollow plate body 1;

[0048] When the hollow slab body 1 is hoisted between the piers on both sides, the hollow slab body 1 is located between the end connecting piers 2 on both sides. When the hollow slab body 1 is hoisted to the upper side of the end connecting pier 2, the servo motor is controlled to drive gear 1 32 to cooperate with gear 2 33 and support arm 52 to drive drive arm 5 to rotate and unfold to a horizontal state. Synchronously, when gear 1 32 rotates, bevel gear 1 34 is driven to rotate. When bevel gear 1 34 rotates, it meshes with bevel gear 2 35 and drives the outer support shaft 41 to rotate. When the outer support shaft 41 rotates, it drives the detection shaft plate 42 to rotate and expand. At the same time, the electric telescopic rod is controlled to drive the detection box 421 to move down to the position. When the hollow slab body 1 is hoisted downward, the position of the hollow slab body 1 is adjusted by adjusting the crane and with the assistance of external construction personnel. During the adjustment, when the driving arms 5 on both sides of the upper end position of the hollow slab body 1 are located at the two side positions of the end connecting pier 2 and the movable rollers 53 on the mounting platform 51 are in contact with the outer wall of the hollow slab body 1, the end connecting pier 2 squeezes the mounting platforms 51 on both sides to slide, and the mounting platforms 51 are in contact with the contact sensors 54 when sliding. When the contact sensors 54 feed back a contact signal to the system, it indicates that the hollow slab body 1 and the end connecting pier 2 are in the same straight line at this time, and the preliminary positioning of the hollow slab body 1 is completed;

[0049] When the hollow slab body 1 is hoisted downward and detected whether it is in the same straight line with the end piers 2 on both sides, the detection shaft plate 42 rotates to the upper side of the hollow slab body 1 installed on the adjacent side. During the process of the hollow slab body 1 being hoisted downward, the ball 425 can contact the top of the hollow slab body 1 installed on the adjacent side. When the ball 425 contacts the top of the hollow slab body 1 installed on the adjacent side, the movable frame 423 slides toward the inside of the detection box 421, and the multi-point distance sensor 422 detects the distance data between it and the mounting block 424, and feeds it back to the system. Whether the distance data of the multi-point distance sensor 422 are equal is fed back to reflect whether the hollow slab body 1 and the hollow slab body 1 installed on the adjacent side are in the same horizontal plane;

[0050] When the hollow slab body 1 is hoisted downward for alignment, the external pressing platform 6 at the end positions of the two ends of the hollow slab body 1 contacts the end connecting pier 2. When the end connecting pier 2 contacts the external pressing platform 6, the external pressing platform 6 is squeezed toward the side close to the terminal frame 3. When the external pressing platform 6 slides, the distance data between the detection plate 62 is detected by the distance sensor 2 61. The distance data fed back to the system by the distance sensor 2 61 at the two ends of the hollow slab body 1 can reflect the degree of squeezing of the external pressing platform 6. The degree of squeezing of the external pressing platform 6 can be used to feedback whether the distances between the two end portions of the hollow slab body 1 and the end connecting piers 2 on both sides are equal. The position of the hollow slab body 1 is fine-tuned according to the distance data at both ends to ensure that the distance data at both ends are equal to ensure that the distances between the two ends of the hollow slab body 1 and the end connecting piers 2 on both sides are equal to ensure that the installation position of the hollow slab body 1 is accurate.

[0051] When the distance data between the ends of the hollow slab body 1 and the end connecting pier 2 are equal, the hollow slab body 1 and the top of the hollow slab body 1 installed on the adjacent side are in the same horizontal plane, and the hollow slab body 1 and the end connecting piers 2 on both sides are in the same straight line, it means that the position of the hollow slab body 1 has been safely aligned at this time, and the hollow slab body 1 is installed between the piers on both sides, the control limit plate 73 and the extension tube 71 are retracted, and the hook 11 on the terminal frame 3 and the ring on the hollow slab body 1 are unlocked. After unlocking, the control hoist belt The movable terminal frame 3 moves upward. When the terminal frame 3 moves upward, the alignment cylinder 142 pops out toward the inner direction of the docking hole 21 on the end connecting pier 2 under the action of the spring 141, and the positioning plate 22 is inserted into the alignment cylinder 142. The positioning and installation of the hollow plate body 1 and the end connecting pier 2 are completed. At the same time, when the terminal frame 3 moves upward, the pressing shaft 31 moves upward synchronously, and the squeezed hinged seam sealing plate 13 rotates toward the hollow plate body 1 installed on the adjacent side and contacts it. At this time, the hinged seam sealing plate 13 can block the hinged seam between the two groups of hollow plate bodies 1.

[0052] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

[0053] What is described above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A precast concrete bridge hollow slab, comprising a hollow slab body (1), an end pier (2) and an end connection frame (3), wherein the hollow slab body (1) is provided with two circular holes, and is characterized in that: The end connecting piers (2) are arranged at the two end positions of the hollow plate body (1), two docking holes (21) are provided on the end connecting piers (2), two positioning plates (22) are fixedly installed inside the docking holes (21), a connecting component is provided on the hollow plate body (1), a terminal frame (3) is arranged at the two end positions of the hollow plate body (1), a positioning mechanism is provided on the terminal frame (3), an auxiliary alignment mechanism is provided on the terminal frame (3), and a detection auxiliary component is provided on the terminal frame (3); The connection assembly comprises an embedded frame (12), the embedded frame (12) is arranged on one side of the hollow plate body (1), a hinged sealing plate (13) is rotatably installed inside the embedded frame (12), an embedded cylinder (14) is fixedly installed at the circular hole on the hollow plate body (1), and a spring (141) and an alignment cylinder (142) are arranged inside the embedded cylinder (14); The auxiliary alignment mechanism comprises an external pressure platform (6), the external pressure platform (6) is movably mounted on the end of the terminal frame (3) away from the hollow plate body (1), a distance sensor 2 (61) is fixedly mounted on the terminal frame (3), two sets of driving arms (5) are rotatably mounted on the terminal frame (3), and a mounting platform (51) and a contact sensor (54) are arranged on the driving arms (5); The detection auxiliary component comprises a top frame (4), the top frame (4) is fixedly mounted on the top of the terminal frame (3), pressure shafts (31) are fixedly mounted on both sides of the bottom of the terminal frame (3), an external support shaft (41) and a detection shaft plate (42) are movably mounted inside the top frame (4), and a detection box (421), a ball (425) and a distance sensor (422) are arranged at the bottom of the detection shaft plate (42).

2. The precast concrete bridge hollow slab according to claim 1, characterized in that: The hinged seam sealing plate (13) is rotatably mounted inside the embedded frame (12) via a rotating shaft and a torsion spring; an annular groove is provided inside the embedded tube (14); an alignment tube (142) is slidably mounted inside the embedded tube (14); three springs (141) are fixedly mounted inside the embedded tube (14); and one end of the spring (141) is fixedly connected to the alignment tube (142).

3. The precast concrete bridge hollow slab according to claim 1, characterized in that: The positioning mechanism comprises an extension tube (71), the extension tube (71) is fixedly mounted on the terminal frame (3), a mounting hole for mounting the extension tube (71) is provided on the terminal frame (3), a mounting tube (7) is movably mounted on one side of the extension tube (71), and an outward push column (72) is movably mounted inside the mounting tube (7).

4. The precast concrete bridge hollow slab according to claim 3, characterized in that: The positioning mechanism further comprises a limiting plate (73), three groups of limiting plates (73) are movably mounted inside the mounting tube (7), three groups of movable arms (74) are rotatably mounted on the external push column (72), and the movable arms (74) are rotatably connected to the limiting plates (73).

5. The precast concrete bridge hollow slab according to claim 1, characterized in that: The auxiliary alignment mechanism also includes spring four (63), five spring fours (63) are fixedly mounted on the termination frame (3), one end of the spring four (63) is fixedly connected to the external pressure platform (6), and the detection plate (62) is fixedly mounted on the side of the external pressure platform (6) close to the termination frame (3).

6. The precast concrete bridge hollow slab according to claim 5, characterized in that: The auxiliary alignment mechanism also includes a movable roller (53), the movable roller (53) is rotatably mounted on the mounting platform (51), four springs (55) are fixedly mounted on the mounting platform (51), one end of the springs (55) is fixedly connected to the driving arm (5), a driving assembly is arranged on the terminal frame (3), the mounting platform (51) is slidably mounted on the driving arm (5), and the contact sensor (54) is fixedly mounted on the driving arm (5).

7. The precast concrete bridge hollow slab according to claim 5, characterized in that: The outer support shaft (41) is rotatably mounted inside the top frame (4), and the outer support shaft (41) is also driven by a driving assembly. The detection shaft plate (42) is rotatably mounted inside the top frame (4), and one end of the outer support shaft (41) is movably connected to the detection shaft plate (42). The detection box (421) is evenly arranged at the bottom of the detection shaft plate (42), and the detection box (421) is movably mounted on the detection shaft plate (42). The distance sensor 1 (422) is fixedly mounted inside the detection box (421).

8. The precast concrete bridge hollow slab according to claim 1, characterized in that: The detection auxiliary component also includes a movable frame (423), the movable frame (423) is slidably installed inside the detection box (421), the ball (425) is rotatably installed inside the movable frame (423), a spring 2 (426) is fixedly installed inside the detection box (421), one end of the spring 2 (426) is fixedly connected to the movable frame (423), and a mounting block (424) is fixedly installed at one end of the movable frame (423).

9. The precast concrete bridge hollow slab according to claim 7, characterized in that: The driving assembly comprises a gear 1 (32), the gear 1 (32) being rotatably mounted at both ends of the terminal frame (3), two gear 2s (33) being rotatably mounted on the terminal frame (3), the gear 2 (33) being meshed with the gear 1 (32), the gear 2 (33) being fixedly connected to the corresponding driving arm (5), and support arms (52) being movably mounted on both sides of the terminal frame (3), one end of the support arm (52) being movably connected to the driving arm (5).

10. The precast concrete bridge hollow slab according to claim 9, characterized in that: The driving assembly further comprises a bevel gear 1 (34), which is rotatably mounted on one side of the terminal frame (3) on which an external support shaft (41) is provided, and the bevel gear 1 (34) is fixedly mounted on the gear 1 (32), and a bevel gear 2 (35) is rotatably mounted on one side of the bevel gear 1 (34), the bevel gear 2 (35) and the bevel gear 1 (34) are meshed with each other, and the bevel gear 2 (35) is fixedly connected to the external support shaft (41).

Images