CN2221053Y - Jet side wall concrete pressure filling pile forming machine - Google Patents

Abstract

The utility model belongs to a construction machine, and is a jet side wall concrete pressure filling pile-forming machine. The utility model comprises a drill body 20, a grout conveying pipe 18, a concrete conveying pipe 9, the output gear 13 of a speed reducer, a top cover 12, a bearing 10, a sealing ring 11, a plastering pressure plate 1, a plate valve 4, an upper bottom valve 14, and a lower bottom valve 15. The plastering pressure plate is fixed on the outer edge of a screw blade on the lower part of the drill body, and is a curved surface plate type structure; the plastering pressure plate is tightly adjacent to a hole wall, and is provided with at least one potion which forms an included angle with the hole wall. The drilling and the pile forming of the utility model are completed by one step; in addition, a pile body has high intensity and good connectivity with the hole wall, and a reinforcing cage can be easily inserted. Slurry does not overflow in the construction, and the utility model is suitable for various kinds of earthiness.

Description

Injection is smeared and is pressed side wall and pressure concrete placing pile forming machine

Injection is smeared and is pressed side wall and pressure concrete placing pile forming machine to belong to building machinery.

Common spiral drilling machine is widely used a kind of auger in builing industry.This rig can only be finished boring work merely, and pile proposes drilling tool often, again concrete placing.Thereby efficient is low, can't handle the hole that collapses, and supporting capacity is not high yet.There are two kinds of new rigs to come out in recent years, the drilled pressure filling rig that first Chinese patent ZL86100705 is adopted, it two is " helical driller for concrete perfusion " that the disclosed Chinese invention patent CN1076980 of application is provided.Though first kind of rig solved and bored the hole do not put forward just can the spray problem of cement paste of brill in the hole, because perfusion is not concrete, can only the later stage people throw in building stones, mends slurry then.Therefore, the building stones uniformity of mixing with cement paste is uncontrollable.Not really high because of there not being the intensity of husky material pile body own, the lapidation material often has a large amount of slurries to overflow in addition, has both wasted cement, pollutes on-the-spot again.Second kind of rig can carried concrete perfusion when boring, and pile body self intensity is guaranteed usually.But because of the auger bottom is a open space on the screw, so can not apply very big pressure, cement paste is little to the osmotic effect of Tu Bi.Also owing to the geological conditions difference, the cement paste in the concrete is also different to the hole wall seepage discharge, causes pile body different parts mix proportion example different, causes the strength of the mixing pile instability, and reinforcing cage can't insert when serious, makes the technology failure.

After order of the present utility model is the native pore-forming of a kind of brill of design, can be with water under high pressure mud spray-hole wall, press down perfusion attitude concrete at closed state, simultaneously the rig of forcibly cement paste of ejection and part concrete being smeared a bored pile that is pressed into sidewall repeatedly through pressure plate.

The utility model includes drill body, cement paste carrier pipe, elephant trunk, the output gear of reduction box, top cover, bearing, sealing ring, and it also includes pressure plate, plate valve, last bottom valve, following bottom valve.The drill body bottom is two helical blades, is fixed with pressure plate on the outer rim of helical blade, and pressure plate is the curved surface plank frame, and the close neighbour of native sidewall of pressure plate and cylindrical hole has a little angle having at least on the pressure plate between a place and the hole wall.When pressure plate rises with drill body rotation, can smear forcibly and be pressed into Tu Bizhong entering material (soil, cement paste, concrete) in the angle.

Be provided with a plate valve in the pitch of single the helical blade in pressure plate upper end, plate valve has two stable status, opens and closes.Plate valve is parallel with hole wall when open, does not influence unearthed.Be drilled into desired depth, drive the control lever on drill body top, under a spring action and a side material pressure plate valve cuts out, the sealing threaded hole is carried out guncreting.

In the following outlet of elephant trunk, be provided with the following bottom valve made from disposable fragile material, by stay cord and a depression bar that is located at elephant trunk upper end an end link to each other.Be provided with bottom valve on again in the elephant trunk above the bottom valve down, a control swing handle is stretched out in the side of last bottom valve.

The utility model is after being drilled into desired depth, and drilling rod continues (in the same way or oppositely) rotation, and by to the hole wall gunite, the mixing of pressure injection doubted the soil part and poured into hole wall from the opening of concave surface, and pressure plate forces to smear repeatedly pressure with cement and part concrete to hole wall.The adhesion of concrete pile body and hole wall is greatly improved.And because of hole wall has fully absorbed cement paste, the cement paste in the pile body concrete no longer exosmoses, and makes the pile body mix proportion keep stable, can guarantee that the intensity of pile body and reinforcing cage are easy to insert.In addition, because of having realized sealing pressure injection concrete basically, can make the pile body hole enlargement and improve pile strength.This pile forming machine is applicable to clay, sandy soil, mucky soil, has or not phreatic all kinds of geological conditions.And do not have mud, cement paste is excessive, pile intensity height, mechanization of operation degree height, low, the cleaned in situ of cost.

Fig. 1 is the utility model overall structure schematic diagram, Fig. 2 is that pressure plate is smeared the fundamental diagram when pressing hole wall, Fig. 3 is the notch configuration schematic diagram among the embodiment, structural representation when Fig. 4 is the plate valve opening, Fig. 5 is the structural representation of plate valve when closing, Fig. 6 is a structural representation of going up bottom valve, following bottom valve and controlling organization thereof, and Fig. 7 is a vertical view of going up bottom valve.

Embodiment: present embodiment is made up of output gear 13, top cover 12, bearing 10, sealing ring 11, pressure plate 1, plate valve 4, last bottom valve 14, the following bottom valve 15 of drill body 20, cement paste carrier pipe 18, elephant trunk 9, reduction box.Pressure plate 1 is a telescoping structure, and is fixed on the outer rim of two helical blades 8 of drill body 20 bottom wide-angles, and the bottom of pressure plate 1 is the cutting ring 2 of a band sword.The side of pressure plate 1 has two concave holes 21 and 22, and concave hole 21 is fixedlyed connected with the side direction spout 3 of cement paste carrier pipe 18.Plate valve 4 is located in the pitch of single helical blade in pressure plate 1 upper end 27, plate valve 4 be with drill body helical blade outer rim curvature with identical arc, supporting a pole 5 in the inboard of plate valve 4, the other end of pole 5 is fixed on the connecting rod 23, connecting rod 23 passes on the end that elephant trunk 9 is connected to the depression bar 6 that is in drill body upper end, on the pairing elephant trunk 9 in plate valve 4 centers, also fixing a spring 7, the outer end of spring 7 and plate valve 4 inboard fixedlying connected.Following bottom valve 15 is located at the following exit of elephant trunk 9, and following bottom valve 15 links to each other by the end of a stay cord 24 with the depression bar 16 that is located at elephant trunk 9 upper ends.Last bottom valve 14 is located at down in the elephant trunk 9 above the bottom valve 15, last bottom valve 14 by a connecting rod 25 with control swing handle 17 and link to each other.Rig has risen to ground after pile body of perfusion finishes, and when rig is static, manipulation control swing handle 17 will be gone up bottom valve and close, and install down bottom valve 15 then, and open again and go up bottom valve 14, and unlatching plate valve 4.In the position redrilling of delimiting, two blade cutting knifes are cut soil with suitable angle when boring, and the cutting ring of telescopic pressure plate lower limb is upright to cutting soil, and the loosened soil of cutting-out rises in the threaded hole of drill body.Do not stop during hole depth to bore when getting into design, it is broken that the depression bar 16 that presses down down bottom valve will descend bottom valve to draw.Start High pressure cement pump and cement slurrypump, treat to close plate valve again after concrete pushed up plate valve with loosened soil.Because the effect of pole makes it parallel with hole wall, and pole 5, spring 7 all be arranged on the bottom surface of being close to helical blade when plate valve was opened, so upwards unearthed when not influencing boring.When needs were closed plate valve, following moulded rod 16 dialled pole from the position that can not support plate valve, and plate valve cuts out plate valve under the effect of spring and pressure concrete promote, as shown in Figure 5.Cement paste sprays to the hole sidewall by spout 3, concrete is extruded by recess 21, must fill up cement paste and concrete in two positions that sleeve is recessed and the angle between the hole wall, when drill body drives the pressure plate rotation and rises, cement and concrete smeared compress into the hole sidewall, its operating principle as shown in Figure 2.

Claims (3)

1, injection is smeared and is pressed side wall and pressure concrete placing pile forming machine, it includes output gear (13), top cover (12), bearing (10), the sealing ring (11) of drill body (20), cement paste carrier pipe (18), elephant trunk (9), reduction box, it is characterized in that it also includes pressure plate (1), plate valve (4), last bottom valve (14), following bottom valve (15); Pressure plate (1) is fixed on the outer rim of drill body (20) bottom helical blade (8), and pressure plate (1) is the curved surface plank frame, the close neighbour of sidewall of pressure plate (1) and cylindrical hole, and having at least on pressure plate (1) has a little angle between a place and the wall.

2, injection according to claim 1 is smeared and is pressed side wall and pressure concrete placing pile forming machine, it is characterized in that plate valve (4) is located in the pitch of pressure plate (1) single the helical blade in upper end (27), plate valve (4) is and the identical arc of drill body helical blade outer rim curvature, supporting a pole (5) in the inboard of plate valve (4), the other end of pole (5) is fixed on the connecting rod (23), connecting rod (23) passes on the end that elephant trunk (9) is connected to the depression bar (6) that is in drill body upper end, also fixing a spring (7) on the elephant trunk (9) of the electric heart correspondence of plate valve (4), fixedlys connected with plate valve (4) is inboard in the outer end of spring (7).

3, the pile forming machine of pressing the side wall and pressure concrete placing is smeared in injection according to claim 1 and 2, bottom valve (15) is located at the following exit of elephant trunk (9) under it is characterized in that, following bottom valve (15) links to each other by the end of a stay cord (24) with the depression bar (16) that is located at elephant trunk (9) upper end; Last bottom valve (4) is located at down in the top elephant trunk (9) of bottom valve (15), and (14 pass through a connecting rod (25) links to each other with control swing handle (17) last bottom valve.

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