Prefabricated box girder maintenance structure

Abstract

The utility model relates to a precast box girder maintenance structure which comprises a trolley system and a maintenance room, the trolley system comprises a track arranged on the ground, a power supply and a trolley capable of being movably supported on the track, one end of the track is located in the maintenance room, and the other end of the track is located outside the maintenance room. The trolley comprises a trolley main body, trolley walking wheels arranged on the trolley main body and used for supporting the trolley main body on the track, and a trolley driving motor arranged on the trolley main body and used for driving the trolley walking wheels, the trolley driving motor is connected with the power source through an electric wire, and a heat preservation layer is arranged on the inner surface of the curing chamber. A steam conveying pipe is arranged in the heat preservation layer, the steam conveying pipe is provided with a steam spraying nozzle for conveying pipe steam towards the interior of the curing chamber, the curing chamber is provided with a door for the trolley to pass through, and a door curtain for sealing the door is arranged on the door. The box girder maintenance device has the advantages that box girder maintenance can be carried out through steam, watering maintenance is replaced, the maintenance efficiency is high, and the quality is good.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge construction, in particular to a prefabricated box beam maintenance structure. Background Art

[0002] During the production process of prefabricated parts such as box girders in bridges, the prefabricated parts need to be maintained. The existing maintenance method is to spray water manually at the prefabrication site. This maintenance method takes a long time, is inefficient, and has poor maintenance effects. The prefabricated parts are transported by a trolley, which is driven by a motor, and the motor is connected to the power supply through wires. The existing wires are suspended in the air for movement, and the aerial movement method will interfere with the operation on the trolley. Utility Model Content

[0003] The first purpose of the utility model is to provide a prefabricated box girder curing structure for curing the box girder by steam to replace watering curing, with high curing efficiency and good quality.

[0004] The second purpose of the utility model is to further provide a prefabricated box girder maintenance structure in which the power supply wires of the trolley are arranged on the ground, so as to solve the problem of interference operation of the existing trolley wires being arranged overhead.

[0005] The above technical problems are solved by the following technical solutions: a prefabricated box girder maintenance structure, including a trolley system and a maintenance room, the trolley system including a track set on the ground, a power source and a trolley that can be movably supported on the track, one end of the track is located inside the maintenance room and the other end is located outside the maintenance room, the trolley includes a trolley body, trolley running wheels set on the trolley body to support the trolley body on the track, and a trolley driving motor set on the trolley body to drive the trolley running wheels, the trolley driving motor is connected to the power source through an electric wire, an insulation layer is provided on the inner surface of the maintenance room, a steam delivery pipe is provided in the insulation layer, the steam delivery pipe is provided with a steam nozzle for delivering pipe steam toward the maintenance room, the maintenance room is provided with a door for the trolley to pass through, and a door curtain for closing the door is provided on the door; the specific process of box girder maintenance is: the trolley driving motor drives the trolley to walk on the track and enter the maintenance room, and then the steam nozzle is opened, and the steam delivered by the delivery pipe hits the maintenance room to achieve heating and heat preservation maintenance. Installing an insulation layer and door curtains can improve the insulation effect of the curing room and reduce energy consumption.

[0006] Preferably, the steam nozzle is an electric valve structure, and a push switch for controlling the steam nozzle is provided in the curing room. The push switch is a normally open switch, and includes a switch body and a push head. When the trolley enters the curing room along the track and reaches a set position, the trolley body presses the push head. It is convenient to check whether the trolley is in place in the curing room, and when it is in place, steam can be automatically turned on for steam curing.

[0007] Preferably, the pressing head is connected to a longitudinal rod perpendicular to the track, and the trolley presses the pressing head through the longitudinal rod, so as to improve the reliability when the pressing switch is touched.

[0008] Preferably, the electric wire is laid on the bottom surface supporting the track along the extension direction of the track, and the trolley body is provided with a winding drum and a winding motor driving the winding drum to rotate, one end of the electric wire is connected to the winding drum and then connected to the motor, and the other end is connected to the power supply; the power supply process is: the power supply is transmitted to the motor through the electric wire so that the trolley system is powered, and the motor drives the trolley to actively move on the track, and during the moving process, the winding motor drives the winding drum to reel in and release the wire to avoid the wire folding and winding on the ground interfering with the trolley operator's work above the trolley. The second purpose of the utility model is achieved.

[0009] Preferably, a wiring groove extending along the extension direction of the track is provided on the ground, and the electric wires are aligned with the wiring groove, so that the electric wires can be collected in the wiring groove when they are spread out to avoid being crushed and damaged.

[0010] Preferably, the trolley body is hinged to one end of the swing arm through a hinge shaft perpendicular to the track, the other end of the swing arm is provided with a threading hole, the wire is passed through the threading hole, the swing arm and the wiring groove are located on the same vertical plane, and the end of the swing arm provided with the threading hole is located in the wiring groove, so that the wire can reliably enter the wiring groove during the wire laying process.

[0011] Preferably, the swing arm is provided with a supporting ball supported in the wiring groove, so as to improve the smoothness during movement.

[0012] Preferably, the door curtain is provided with a sealing tongue extending into the wiring groove to locate the wiring groove at a portion of the port inside and outside the curing room, so as to improve the effect of preventing steam from overflowing.

[0013] Preferably, the winding drum includes a winding wheel with end plates at both ends and a winding motor driving the winding wheel to rotate, the winding wheel is rotatably connected to the winding drum mounting frame, the winding drum mounting frame is connected to the trolley body, the end of the wire connected to the winding drum is coaxially arranged with the winding wheel and connected to the conductive disk after extending out of the winding drum, the conductive disk is located in a liquid storage tank, and the liquid storage tank stores conductive liquid, the winding motor is connected to one end of the motor power supply lead-in line, the other end of the motor power supply lead-in line is inserted into the conductive liquid, the conductive liquid submerges the conductive disk, and the rotating shaft of the winding wheel extends in the horizontal direction. Reliable power connection with the motor is achieved when the wire rotates, and no sparking and wear occurs.

[0014] The utility model has the following beneficial effects: steam curing is performed, the curing efficiency is high and the quality of the manufactured box beam is good; and the wiring is performed underground without interfering with the operation on the trolley. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a top view schematic diagram of the utility model;

[0016] Figure 2 It is a transverse cross-sectional schematic diagram of the utility model;

[0017] Figure 3 for Figure 2 A local enlarged schematic diagram of point A;

[0018] Figure 4 for Figure 2 A local enlarged schematic diagram of point B;

[0019] Figure 5 It is a longitudinal cross-sectional schematic diagram of the utility model;

[0020] Figure 6 for Figure 5 A local enlarged schematic diagram of point C. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments; based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0022] See also Figures 1 to 6A prefabricated box girder maintenance structure includes a trolley system and a maintenance room 1. The trolley system includes a track 2 set on the ground, a power source, and a trolley that can be movably supported on the track. One end of the track is located outside the maintenance room and the other end is located outside the maintenance room. The trolley includes a trolley body 3, a trolley running wheel 4 set on the trolley body to support the trolley body on the track, and a trolley driving motor set on the trolley body to drive the trolley running wheel. The trolley driving motor is connected to the power source through an electric wire 5. An insulation layer 6 is provided on the inner surface of the maintenance room, a steam delivery pipe 7 is provided in the insulation layer, and a steam delivery pipe is provided with a steam nozzle 8 for delivering pipe steam toward the maintenance room. The steam nozzle is an electric valve structure. The maintenance room is provided with a door for the trolley to pass through, and a door curtain 9 for closing the door is provided on the door. A push switch 10 for controlling the steam nozzle is provided in the maintenance room. The push switch is a normally open switch. The push switch includes a switch body 11 and a push head 12. When the trolley enters the curing room along the track and reaches the set position, the trolley body presses the pressing head. Specifically, the pressing head is connected to a longitudinal rod 13 perpendicular to the track, and the trolley squeezes the pressing head through the longitudinal rod. The electric wire is laid on the bottom surface 14 of the supporting track along the extension direction of the track. The trolley body is provided with a winding drum 15 and a winding motor for driving the winding drum to rotate. One end of the electric wire is connected to the winding drum and then connected to the motor, and the other end is connected to the power supply. A wiring groove 16 extending along the extension direction of the track is provided on the ground, and the electric wire is aligned with the wiring groove. The trolley body is hinged with one end of the swing rod 18 through a hinge shaft 17 perpendicular to the track. The other end of the swing rod is provided with a threading hole 19, and the electric wire is passed through the threading hole. The swing rod and the wiring groove are located on the same vertical plane. One end of the swing rod provided with the threading hole is located in the wiring groove. The swing rod is provided with a supporting rolling ball 20 supported in the wiring groove. The door curtain is provided with a sealing tongue 21 extending into the wiring groove and locating the wiring groove inside and outside the curing room. The winding drum includes a winding wheel 23 with end plates 22 at both ends and a winding motor that drives the winding wheel to rotate. The winding wheel is rotatably connected to a winding drum mounting frame 24, and the winding drum mounting frame is connected to the trolley body. The end 25 of the electric wire connected to the winding drum is coaxially arranged with the winding wheel and is connected to a conductive disk 26 after extending out of the winding drum. The conductive disk is located in a liquid storage tank 27, and a conductive liquid 28 is stored in the liquid storage tank. The winding motor is connected to one end of a motor power supply lead-in line 29, and the other end of the motor power supply lead-in line is passed through the conductive liquid. The conductive liquid submerges part of the conductive disk, and the rotating shaft of the winding wheel extends in the horizontal direction.

[0023] The specific process of box girder maintenance is as follows: the trolley drive motor drives the trolley to move on the track and enter the curing room, and then the steam nozzle is opened. The steam delivered from the delivery pipe hits the curing room to achieve heating and heat preservation maintenance.

[0024] The process of powering the trolley is as follows: the power is transmitted to the trolley drive motor through the wires so that the trolley system is powered, the trolley drive motor drives the trolley to move on the track, and during the moving process, the winding motor drives the winding reel to reel in and release the wire to avoid the wires folding and winding on the ground to interfere with the trolley operators working above the trolley.

Claims

1. A prefabricated box girder maintenance structure, characterized in that: It includes a trolley system and a curing room, the trolley system includes a track set on the ground, a power source and a trolley that can be movably supported on the track, one end of the track is located inside the curing room, and the other end is located outside the curing room, the trolley includes a trolley body, trolley running wheels set on the trolley body to support the trolley body on the track, and a trolley driving motor set on the trolley body to drive the trolley running wheels, the trolley driving motor is connected to the power source through electric wires, an insulation layer is provided on the inner surface of the curing room, a steam delivery pipe is provided in the insulation layer, the steam delivery pipe is provided with a steam nozzle for delivering pipe steam toward the curing room, the curing room is provided with a door for the trolley to pass through, and the door is provided with a door curtain for closing the door.

2. A prefabricated box beam maintenance structure according to claim 1, characterized in that: The steam nozzle is an electric valve structure. A push switch for controlling the steam nozzle is provided in the curing room. The push switch is a normally open switch. The push switch includes a switch body and a pressing head. When the trolley enters the curing room along the track and reaches the set position, the trolley body presses the pressing head.

3. A prefabricated box beam maintenance structure according to claim 2, characterized in that: The pressing head is connected with a longitudinal rod perpendicular to the track, and the trolley presses the pressing head through the longitudinal rod.

4. A prefabricated box girder maintenance structure according to claim 1, 2 or 3, characterized in that: The electric wire is laid on the bottom surface supporting the track along the extension direction of the track. The trolley body is provided with a winding drum and a winding motor driving the winding drum to rotate. One end of the electric wire is connected to the winding drum and then connected to the motor, and the other end is connected to the power supply.

5. The prefabricated box beam maintenance structure according to claim 4, characterized in that: A wiring groove extending along the extension direction of the track is provided on the ground, and the electric wires are aligned with the wiring groove.

6. The prefabricated box beam maintenance structure according to claim 5, characterized in that: The trolley body is hinged to one end of the rocker arm through a transverse hinge shaft, and the other end of the rocker arm is provided with a wire threading hole, and the wire is passed through the wire threading hole. The rocker arm and the wiring groove are located on the same vertical plane, and the end of the rocker arm provided with the wire threading hole is located in the wiring groove.

7. The prefabricated box beam maintenance structure according to claim 6, characterized in that: The swing rod is provided with a supporting rolling ball supported in the wiring groove.

8. The prefabricated box beam maintenance structure according to claim 5, characterized in that: The door curtain is provided with a sealing tongue which extends into the wiring groove and locates the wiring groove at a partial port inside and outside the curing room.

9. The prefabricated box beam maintenance structure according to claim 4, characterized in that: The winding drum includes a winding wheel with end plates at both ends and a winding motor that drives the winding wheel to rotate. The winding wheel is rotatably connected to a winding drum mounting frame, and the winding drum mounting frame is connected to the trolley body. The end of the electric wire connected to the winding drum is coaxially arranged with the winding wheel and is connected to a conductive disk after extending out of the winding drum. The conductive disk is located in a liquid storage tank, and a conductive liquid is stored in the liquid storage tank. The winding motor is connected to one end of a motor power supply lead-in line, and the other end of the motor power supply lead-in line is passed through the conductive liquid. The conductive liquid submerges part of the conductive disk, and the rotating shaft of the winding wheel extends in a horizontal direction.

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