CN205205677U - Prefabricated beam slab stretch -draw work platform - Google Patents

Abstract

The utility model relates to a prefabricated beam and slab tensioning operation platform, which comprises four vertical poles in a square array, and the upper and lower ends of the poles are fixedly connected with a square upper frame structure composed of horizontal cross bars and The square lower frame structure, the square upper frame structure is fixedly connected with two parallel rail support rods, and the two rail support rods are vertically fixedly connected with two horizontal rails. The two parallel longitudinal rails are provided with a lateral sliding mechanism between the two ends of the longitudinal rail and the lateral rail, and a longitudinal sliding hoisting mechanism is provided at the lower part of the longitudinal rail. The prefabricated beam-slab tensioning operation platform is easy to operate and saves time. At the same time, the protective baffle and rain-proof baffle ensure personal safety during tensioning operations and electrical safety in special weather.

Description

Prefabricated beam and slab tensioning work platform

Technical field:

The utility model relates to a tensioning operation platform for prefabricated beam slabs.

Background technique:

At present, prestressed beams and slabs are widely used in bridge construction due to their advantages such as reasonable structural design, good structural performance, construction procedures, high production efficiency, and convenient construction management. But its construction process requires special equipment, its process is more complicated, and the work of its tensioning equipment in place is more cumbersome, and there is a certain degree of danger during tensioning.

Utility model content:

The technical problem to be solved by the utility model is to provide a working platform with simple structure, convenient operation, time saving and safe and effective realization of prestressed beam and slab tensioning operation.

In order to solve the above technical problems, the utility model is achieved through the following technical solutions:

A prefabricated beam and slab tensioning work platform, including four vertical poles in a square array, between the upper and lower ends of the poles, a square upper frame structure composed of horizontal bars and a square lower frame are fixedly connected. Enclosing frame structure, two track support rods arranged in parallel are fixedly connected under the square upper frame structure, two horizontal rails are vertically fixedly connected between the two track support rods, and a A longitudinal track parallel to the two. The cross section of the longitudinal track is I-shaped and is composed of an upper horizontal plate, a lower horizontal plate and a middle support plate. The two ends of the horizontal sliding mechanism freely slide back and forth on the horizontal rail. In addition, a longitudinal sliding lifting mechanism for hoisting the prefabricated panel and freely sliding forward and backward is provided on the lower part of the longitudinal rail.

Preferably, the lateral sliding mechanism includes two lateral sliding connectors placed symmetrically on both sides of the middle support plate, the lateral sliding connectors include first rollers and first bearings placed on the lateral rails, and the first bearings One end is movably connected with the first roller, and the other end is placed under the upper horizontal plate and can support the end of the longitudinal track to slide back and forth on the transverse track.

Preferably, the longitudinal sliding lifting mechanism includes longitudinal sliding connectors symmetrically arranged on both sides of the middle support plate, the longitudinal sliding connectors include second rollers and second bearings placed on the longitudinal rails, and the lower horizontal plate Both left and right sides are provided with track fixing plates capable of forming a sliding track with the middle support plate. The second roller is placed on the sliding track and can freely slide forward and backward on it. One end of the second bearing is connected to the first The two rollers are vertically movably connected, and the lower part of the other end is fixedly connected with a U-shaped suspension ring, and a chain block for hoisting the prefabricated board is hung on the lower part of the U-shaped suspension ring.

As a preference, the transverse rails, vertical bars and horizontal bars are all set as channel steel.

Preferably, three side protection plates are provided between the square upper surrounding frame and the square lower surrounding frame, and a top protection plate is provided on the top of the upper surrounding frame structure.

Preferably, a supporting platform welded and fixed to the square lower surround frame is provided.

Preferably, the length of the track support bar is greater than the length of the horizontal bar parallel to it.

Compared with the prior art, the utility model is beneficial in that: the prefabricated beam-slab tensioning operation platform has a fine and reasonable design, and the tensioning equipment can move in space through the chain hoist hanging on the ring during work, and the tensioning The pulling equipment and the tensioning work platform can be put in place by the gantry crane at one time, and replace the gantry crane to put the jack and anchor in place, which is easy to operate and saves time. Safety and electrical safety in special weather, so it has practicality and high economic benefits, and is suitable for popularization and application.

Description of drawings:

Below in conjunction with accompanying drawing, the utility model is further described.

Fig. 1 is a schematic diagram of the shaft side structure when the top protective plate is not installed in the utility model;

Fig. 2 is a partially enlarged structural schematic diagram of the horizontal sliding mechanism and the vertical sliding lifting mechanism of the present invention.

Fig. 3 is a schematic diagram of the axial side structure of the end of the longitudinal rail of the present invention;

Fig. 4 is a schematic diagram of the overall axial structure of the utility model;

In the figure: 1, vertical bar 2, horizontal bar 3, track support bar 4, transverse track 5, longitudinal track 51, upper horizontal plate 52, lower horizontal plate 53, middle support plate 6, first roller 7, first bearing 8 , second roller 9, second bearing 10, sliding track 11, track fixing plate 12, U-shaped ring 13, chain hoist 14, side protection plate 15, top protection plate 16, support platform

detailed description:

Below in conjunction with accompanying drawing and specific embodiment the utility model is described in detail:

A prefabricated beam-slab tensioning work platform shown in Fig. 1 includes four vertical poles 1 in a square array, between the upper and lower ends of the poles 1 are fixedly connected horizontal bars 2 A square upper frame structure and a square lower frame structure, two track support rods 3 arranged in parallel are fixedly connected under the square upper frame structure, and two horizontal rails 4 are vertically fixedly connected between the two track support rods 3 , A longitudinal rail 5 parallel to the two is provided between the two rail support rods 3. As shown in FIG. and an intermediate support plate 53, between the two ends of the longitudinal track 5 and the transverse track 4, there is a transverse sliding mechanism that allows the two ends to slide back and forth freely on the transverse track 4, and in addition, at the bottom of the longitudinal track 5 There is a vertical sliding lifting mechanism for lifting prefabricated panels and can freely slide back and forth on them.

As shown in Figure 2 and Figure 3, in order to enable the end of the longitudinal rail 5 to move freely on the lateral rail 4 more stably, as a preferred embodiment, the lateral sliding mechanism includes two symmetrically placed middle support plates 53. The horizontal sliding connection on the side, the horizontal sliding connection includes the first roller 6 and the first bearing 7 placed on the horizontal track, one end of the first bearing 7 is movably connected with the first roller 6, and the other end It is placed on the lower part of the upper horizontal plate 51 and can support the end of the longitudinal rail 5 to slide back and forth on the transverse rail 4 .

As shown in Figures 2 and 3, in order to allow the rings for hanging the prefabricated panels to slide freely back and forth on the longitudinal rails stably, the longitudinal sliding lifting mechanism includes longitudinal sliding connectors symmetrically arranged on both sides of the middle support plate 53 , the longitudinal sliding connector includes a second roller 8 and a second bearing 9 placed on the longitudinal track, and the left and right sides of the lower horizontal plate 52 are provided with a track capable of forming a sliding track 10 with the middle support plate 53 Fixed plate 11, the second roller 8 is placed on the sliding track 10 and can freely slide back and forth on it, one end of the second bearing 9 is vertically and movably connected to the second roller 8, and the other end of the lower part is fixedly connected to a U-shaped suspension ring 12, a chain block 13 for lifting prefabricated panels is hung on the lower part of the U-shaped suspension ring 12.

In order to enhance the stability of the overall structure, the horizontal rail 4, the vertical bar 1, and the horizontal bar 2 are all set as channel steel, and in order to ensure personal safety during tensioning operations and electrical safety in special weather, as shown in Figure 4 , three side protective panels 14 are arranged between the square upper enclosure frame and the square lower enclosure frame, and a top protection panel 15 is arranged on the top of the upper enclosure frame structure, thus effectively protecting the whole construction process and construction personnel. The protective effect enhances its safety. In addition, a support platform 16 welded and fixed to it is provided between the square lower enclosures. The length of the track support bar is greater than the length of the horizontal bar parallel to it, increasing the stability of the overall structure. At the same time, it can be more conducive to the operation of construction personnel and improve construction efficiency.

In specific applications, the hanging system is composed of U-shaped lifting ring 12 and manual hoist 13 to realize the hanging action of the prefabricated panel, and then the second bearing 9 and the second roller 8 on the longitudinal sliding connector drive the hanging system on the longitudinal track. 5 on the front and rear freely move, this process realizes the free movement of the front and rear dimensions of the suspension system, in addition, the first roller 6 and the first bearing 7 on the horizontal sliding connector can also drive the suspension system to freely move back and forth on the horizontal rail 4 Movement, this process realizes the free movement of the left and right dimensions of the hanging system, so that the prefabricated beam can be moved to any desired position in the plane dimension, and the spatial movement is realized through the chain hoist 13 hanging on the U-shaped ring 12, so that The overall implementation process is simple, convenient, fast and effective.

The above-mentioned prefabricated beam-slab tensioning operation platform has a fine and reasonable design. During work, the tensioning equipment can be moved in space through the chain hoist hanging on the lifting ring. The tensioning equipment and the tensioning work platform can be placed in place at one time by the gantry crane, and the walking system can replace it. The gantry crane is used to put the jack and anchor in place, which is easy to operate and saves time. At the same time, the protective baffle and rain-proof baffle ensure the personal safety during tensioning operations and the safety of electrical appliances in special weather.

It should be emphasized that: the above are only preferred embodiments of the present utility model, and are not intended to limit the present utility model in any form. Any simple modification, equivalent change and Modifications still belong to the scope of the technical solution of the utility model.

Claims (7)

1. A prefabricated beam-slab tensioning work platform, characterized in that it includes four vertical poles (1) in a square array, and the fixed connections between the upper and lower ends of the poles (1) are all horizontal A square upper frame structure and a square lower frame structure composed of cross bars (2), two track support rods (3) arranged in parallel are fixedly connected below the square upper frame structure, and two track support rods (3) Two horizontal rails (4) are vertically fixedly connected between them, and a longitudinal rail (5) parallel to the two rail support rods (3) is provided between them, and the cross section of the longitudinal rail (5) is font design and is made up of upper horizontal plate (51), lower horizontal plate (52) and middle support plate (53), between the two ends of longitudinal track (5) and transverse track (4) The end is a horizontal sliding mechanism that slides back and forth freely on the horizontal rail (4), and a vertical sliding hoisting mechanism that is used to hoist the prefabricated panels and can slide back and forth freely on the lower part of the longitudinal rail (5). 2. The prefabricated beam-slab tensioning work platform according to claim 1, characterized in that: the lateral sliding mechanism includes two lateral sliding connectors placed symmetrically on both sides of the middle support plate (53), and the lateral sliding The connecting piece includes the first roller (6) placed on the transverse track (4) and the first bearing (7), one end of the first bearing (7) is movably connected with the first roller (6), and the other end of the first bearing (7) It is placed under the upper horizontal plate (51) and can support the end of the longitudinal track (5) to slide back and forth on the transverse track (4). 3. The prefabricated beam-slab tensioning work platform according to claim 1, characterized in that: the longitudinal sliding hoisting mechanism includes longitudinal sliding connectors arranged symmetrically on both sides of the middle support plate (53), and the longitudinal sliding connection The component includes a second roller (8) and a second bearing (9) placed on the longitudinal rail (5), and the left and right sides of the lower horizontal plate (52) are provided with a The track fixing plate (11) of the sliding track (10), the second roller (8) is placed on the sliding track (10) and can freely slide forward and backward on it, and one end of the second bearing (9) is connected to the The second roller (8) is vertically movably connected, and the lower part of the other end is fixedly connected with a U-shaped lifting ring (12), and a chain block (13) for lifting prefabricated panels is hung on the lower part of the U-shaped lifting ring (12). 4. The prefabricated beam-slab tensioning work platform according to claim 1, characterized in that: the transverse rails (4), vertical bars (1) and horizontal bars (2) are all set as channel steel. 5. The prefabricated beam-slab tensioning work platform according to claim 1, characterized in that three side protection plates (14) are arranged between the square upper frame and the square lower frame, and the upper frame The top of the frame structure is provided with a top protective plate (15). 6. The prefabricated beam-slab tensioning work platform according to claim 1, characterized in that: a support platform (16) welded and fixed thereto is provided between the square lower surrounding frames. 7. The prefabricated beam-slab tensioning work platform according to claim 1, characterized in that: the length of the track support bar (3) is greater than the length of the horizontal bar (2) parallel to it.