CN206768568U - A kind of repeatable quick peace utilized tears wall-attachment trestle open - Google Patents

Abstract

A kind of repeatable quick peace utilized tears wall-attachment trestle, including pre-embedded bolt open, and multiple pre-embedded bolts are fixed in side slope, and is locked with prefabricated triangular form support frame；More prefabricated crossbeams, prefabricated steels are laid successively in the prefabricated triangular form support frame, and prefabricated crossbeam, prefabricated steel are locked by connecting bolt.A kind of repeatable quick peace utilized provided by the utility model tears wall-attachment trestle open, by setting pre-embedded bolt, connecting bolt and prefabricated triangular form support frame etc., realizes that trestle quickly tear open by peace, can repeatedly recycle.

Description

A reusable fast installation and disassembly trestle with wall

technical field

The utility model relates to a trestle bridge, in particular to a reusable rapid installation and disassembly type trestle bridge.

Background technique

In the construction of large-scale water conservancy and hydropower projects, there are many high-altitude and edge-to-edge operations. In order to provide a good working environment for the construction site, the erection of trestles is essential. The erection of the trestle has the characteristics of high operating height, difficult construction and high safety performance requirements. All parts of the old-fashioned trestle are generally fixed by welding. This method is complicated in process, difficult in construction, difficult in dismantling, and the damage of materials after dismantling is large, which reduces construction efficiency, increases material waste, and inconvenient welding. Safety risks of trestles.

Contents of the invention

The technical problem to be solved by the utility model is to provide a reusable fast installation and disassembly trestle with walls, which is convenient for disassembly and assembly, not only improves work efficiency, but also improves the recycling rate of materials and improves the safety of the trestle.

In order to solve the problems of the technologies described above, the technical solution adopted in the utility model is:

A reusable fast installation and disassembly wall-attached trestle, including embedded bolts, a plurality of embedded bolts are fixed on the slope, and locked with the prefabricated triangular support frame; the prefabricated triangular support frame is laid in sequence A plurality of prefabricated beams and prefabricated steel plates are locked by connecting bolts.

The pre-embedded bolts include threaded sleeves. The threaded sleeves are provided with stepped threaded holes in the longitudinal direction and through holes in the transverse direction. The bolts pass through the front section of the stepped threaded holes and lock the prefabricated triangular support frame.

The pre-embedded bolts are in the shape of a truncated cone, and the larger end of the opening faces the prefabricated triangular support frame.

The pre-embedded bolts include a screw rod, on which a plurality of grooves are arranged along the length direction, on the screw rod, a screw sleeve is embedded in the slope, and the part of the screw rod protruding out of the slope is connected with a prefabricated triangular support by a nut The frame locks tight.

The outer surface of the screw sleeve is also provided with grooves.

The triangular support frame is formed by welding in advance with channel steel, and the prefabricated triangular support frame is attached to the slope surface to drill bolt holes.

The distance between the bolt holes ranges from 50 cm to 100 cm.

Guardrails and skirting boards are installed on the prefabricated steel plates at the front end of the prefabricated triangular support frame.

The utility model is a reusable rapid installation and disassembly wall-attached trestle. By setting pre-embedded bolts on the slope, the channel steel is welded in advance on the ground to form a triangular support frame, and then the bolt connection is directly completed. As far as traditional welding is concerned, it reduces the difficulty and workload of installing and dismantling trestles, and improves work efficiency. The bolt connection is convenient for inspection and maintenance, and also increases the reliability of the trestle.

Description of drawings

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

Fig. 1 is the schematic diagram of the utility model.

Fig. 2 is a schematic diagram (first type) of embedded bolts in the utility model.

Fig. 3 is a schematic diagram (second type) of embedded bolts in the utility model.

Fig. 4 is a schematic diagram of guardrail connection in the present invention.

In the figure: embedded bolt 1, prefabricated triangular support frame 2, prefabricated beam 3, prefabricated steel plate 4, connecting bolt 5, threaded sleeve 6, stepped threaded hole 7, through hole 8, bolt 9, screw 10, screw sleeve 11, Nut 12, guardrail 13, skirting board 14, L-shaped angle steel 15.

detailed description

As shown in Figure 1-3, a reusable rapid installation and disassembly trestle with wall includes embedded bolts 1, which are fixed on the slope in advance according to the actual design parameters of the trestle. The prefabricated triangular support frame 2 is fixed on the side slope by embedded bolts 1 . The prefabricated triangular support frame 2 is formed by welding in advance with channel steel, and 3-5 prefabricated beams 3 are successively laid on the upper surface of the prefabricated triangular support frame 2. Drill bolt holes at the designed spacing of the type support frame 2. The prefabricated steel plate 4 is laid on the top of the prefabricated beam 3, and the prefabricated steel plate 4 is punched with bolt holes according to the designed spacing of the prefabricated triangular support frame 2. And the connecting bolts 5 are passed through the bolt holes, and the prefabricated triangular support frame 2, the prefabricated beam 3, and the prefabricated steel plate 4 are fixed into a whole to ensure the strength and stability. Because the prefabricated triangular support frame 2 is connected with all parts by bolts, the difficulty and workload of installing and dismantling the trestle are reduced, and the work efficiency is improved. The bolt connection is convenient for inspection and maintenance, which increases the reliability of the trestle.

The embedded bolt 1 includes a threaded sleeve 6, the threaded sleeve 6 is provided with a stepped threaded hole 7 longitudinally, and a through hole 8 is arranged horizontally, the bolt 9 passes through the front section of the stepped threaded hole 7, and locks the prefabricated triangular support frame 2 tight. The stepped threaded hole 7 can be freely adjusted according to the diameter of the fixed rib, and can be the same diameter as the connecting bolt hole. However, due to the characteristics of the conical threaded sleeve 6 being small inside and large outside, in order to ensure the reliability of the conical threaded sleeve 6, an inner threaded sleeve is generally used. The small outer large stepped threaded hole 7 and the through hole 8 can enhance the connection strength between the connecting bolt and the fixed rib to ensure the overall safety of the trestle.

The pre-embedded bolt 1 has a frustum-shaped shape, and the larger end of the opening faces the prefabricated triangular support frame 2 . The frustum-shaped threaded sleeve 6 increases the connection strength between the bolt and the slope, and the disassembly of the frustum-shaped threaded sleeve 6 is easier to disassemble than the cylindrical one.

Described pre-embedded bolt 1 comprises screw rod 10, and screw rod 10 is provided with a plurality of grooves along the length direction, and screw rod 10 is pre-embedded in the side slope and is provided with screw rod cover 11, and the part protruding out of side slope on the screw rod 10 passes through screw rod 10. Cap 12 is locked with prefabricated triangular support frame 2. Due to the existence of the groove, it is more conducive to the stability of the connection during pre-embedding. By setting the pre-embedded screw sleeve on the screw rod, it can withstand the shear force on the protruding part of the screw rod, ensuring the strength and not wasting too much material.

The outer surface of the screw sleeve 11 is also provided with grooves. This increases the stability of the embedded bolts

The triangular support frame 2 is formed by welding in advance with channel steel, and the prefabricated triangular support frame 2 is attached to the slope surface to drill bolt holes. The bolt holes are evenly arranged on both sides and in the middle of the slope surface of the triangular support frame 2, and a distance of 15cm-20cm is reserved between the bolt holes on both sides and the end to ensure the safety of the trestle. Therefore, when disassembling or installing, only the connecting bolts need to be removed, and other work is completed on the ground, which saves procedures and ensures safety at the same time.

The distance between the bolt holes ranges from 50 cm to 100 cm.

A guardrail 13 and a skirting board 14 are installed on the prefabricated steel plate 4 at the front end of the prefabricated triangular support frame 2 . This completes the required safety protection measures for general trestle bridges. The guardrail 13 is connected with the prefabricated triangular support frame 2 through a pair of L-shaped angle steels. Due to the reinforcement and correction of L-shaped angle steel, the reliability and position accuracy of the guardrail are guaranteed.

Claims (8)

1. a kind of repeatable quick peace utilized tears wall-attachment trestle open, it is characterised in that：Including pre-embedded bolt（1）, it is multiple pre-buried Bolt（1）Be fixed in side slope, and with prefabricated triangular form support frame（2）Locking；The prefabricated triangular form support frame（2）On More prefabricated crossbeams are laid successively（3）, prefabricated steel（4）, prefabricated crossbeam（3）, prefabricated steel（4）Pass through connecting bolt（5）Lock Tightly.

2. a kind of repeatable quick peace utilized according to claim 1 tears wall-attachment trestle open, it is characterised in that：It is described pre- Bury bolt（1）Including thread bush（6）, thread bush（6）Interior longitudinal direction is provided with ladder threaded hole（7）, be transversely provided with through hole（8）, bolt （9）Through ladder threaded hole（7）Leading portion and by prefabricated triangular form support frame（2）Locking.

3. a kind of repeatable quick peace utilized according to claim 2 tears wall-attachment trestle open, it is characterised in that：It is described pre- Bury bolt（1）External form is the round table-like and larger end of opening towards prefabricated triangular form support frame（2）.

4. a kind of repeatable quick peace utilized according to claim 1 tears wall-attachment trestle open, it is characterised in that：It is described pre- Bury bolt（1）Including screw rod（10）, screw rod（10）On be provided with multiple grooves, screw rod along its length（10）On be embedded in side slope Provided with screw sleeve（11）, screw rod（10）Part outside upper stretching side slope passes through nut（12）With prefabricated triangular form support frame（2） Locking.

5. a kind of repeatable quick peace utilized according to claim 4 tears wall-attachment trestle open, it is characterised in that：The spiral shell Rod set（11）Outer surface also is provided with groove.

6. a kind of repeatable quick peace utilized according to claim 1 tears wall-attachment trestle open, it is characterised in that：Described three Angle-style support frame（2）Shift to an earlier date welding forming, prefabricated triangular form support frame with channel-section steel（2）Paste domatic both sides and beat bolt hole.

7. a kind of repeatable quick peace utilized according to claim 6 tears wall-attachment trestle open, it is characterised in that：The spiral shell Keyhole spacing range is between 50 cm ~ 100cm.

8. a kind of repeatable quick peace utilized according to claim 1 tears wall-attachment trestle open, it is characterised in that：It is described pre- Triangular form support frame processed（2）The prefabricated steel of front end（4）On guardrail is installed（13）, skirting board（14）.