CN201738306U

CN201738306U - Knife rest for bottom expanding equipment

Info

Publication number: CN201738306U
Application number: CN2010202671900U
Authority: CN
Inventors: 王丽丽
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-07-22
Filing date: 2010-07-22
Publication date: 2011-02-09
Anticipated expiration: 2020-07-22

Abstract

A knife rest for bottom expanding equipment comprises a drill rod (1), a main rod (2) perpendicular to the drill rod (1), a movable bracket (3), an expansion knife rest (4), and a base (5) connected with the lower end of the drill rod (1), wherein an earth excavation cutter is arranged on the base (5), the upper end of the expansion knife rest (4) is connected with one end of the main rod (2) through a bolt, one end of the movable bracket (3) is connected with the base (5) through a bolt, and a hole (8) is formed at the other end of the movable bracket (3), an elongated slot (7) is formed on the expansion knife rest (4), and a bolt (9) penetrates the hole (8)and the elongated slot (7) and is matched with a nut (6) to fix the movable bracket (3) on the expansion knife rest (4). Since the elongated slot is formed on the expansion knife rest, the movable bracket is fixed on the expansion knife rest through bolts and screw caps, and the purpose of firmness is realized; moreover, since the connection method of the bolts is movable, the purpose of adjusting soil expansion angles conveniently can be achieved by adjusting the different positions of the movable bracket and the expansion knife rest on the elongated slot.

Description

A kind of expansion bed plate frame

Technical field

The utility model relates to a kind of special tool-post, and particularly a kind of convenience and castinplace pile are used to dig the special tool-post at the end when expanding the end.

Background technology

At present, in flourish construction work, highrise building is more and more, accordingly, quality requirement to construction is also more and more higher, thereby large-section in-situ concrete pile is because its bottom bearing area is big, vertical bearing ability height has increased horizontal drag simultaneously, and correspondingly a series of advantage of good seismic performance has obtained using widely, when making stake, be unable to do without the use of expanding indigenous equipment, but there is more shortcoming in present expansion indigenous equipment: as the fixed angle that expands soil, when requiring the castinplace pile of different-diameter, just need different machinery equipments, just improved cost so virtually.Thereby when not changing its knife rest resistance to overturning, how can realize on the basis of same knife rest that different requirements of expanding native angle become a big difficult point of builing industry to reduce cost, the application promptly gives this point, and the needs in conjunction with actual on the building site provide a solution.

The utility model content

The application's technical problem to be solved:

At the expansion that exists in the native knife rest of existing expansion soil fixed angle, can't require according to different expansion soil in this defective of adjusting angle under the prerequisite of exchange device more not, proposes a kind ofly can change the castinplace pile expansion end special tool-post that expands native angle, reaches a tractor serves several purposes purpose flexibly.This cutter frame structure is simple, easy to operate, higher reduction construction cost.

The application is the technical scheme that solves the problems of the technologies described above proposition:

For solving the problems of the technologies described above, the application proposes a kind of expansion bed plate frame, the mobile jib that comprises drilling rod, is provided with perpendicular to drilling rod, travel(l)ing rest, expansion knife rest, the base that is connected with the drilling rod lower end, base is provided with the shoveling cutter, expand the upper end of knife rest and an end of mobile jib and be articulated and connected, an end of travel(l)ing rest is connected by bolt with base, and the other end of travel(l)ing rest is provided with the hole, expand knife rest and be provided with elongated slot, bolt passes hole, elongated slot and cooperates with nut travel(l)ing rest is fixed on the expansion knife rest.

The application's beneficial effect:

1), the utility model is by being provided with elongated slot on the expansion knife rest, by bolt, nut travel(l)ing rest is fixed on the expansion knife rest, not only reached firm purpose, and, because the connected mode of bolt is for flexibly connecting, by adjusting travel(l)ing rest and expanding the diverse location of knife rest on elongated slot, reach the convenient purpose that expands native angle of adjusting.

2), compared with prior art the utility model is simple in structure, and is easy to operate, with expand indigenous equipment combine use after, reduction construction cost that can be bigger improves the speed of construction.

Description of drawings

Fig. 1 is a part-structure exploded view of the present utility model;

Fig. 2 is a structural representation of the present utility model;

1, drilling rod; 2, mobile jib; 3, travel(l)ing rest; 4, expand knife rest; 5, base; 6, nut; 7, elongated slot; 8, hole; 9, bolt;

The specific embodiment

As shown in Figure 1 and Figure 2, a kind of expansion bed plate frame, the mobile jib 2 that comprises drilling rod 1, is provided with perpendicular to drilling rod 1, travel(l)ing rest 3, the base 5 that expands knife rest 4, is connected with drilling rod 1 lower end, base 5 is provided with the shoveling cutter, the upper end of expanding knife rest 4 is connected by bolt with an end of mobile jib 2, one end of travel(l)ing rest 3 and base 5 are connected by bolt, the other end of travel(l)ing rest 3 is provided with hole 8, expand knife rest 4 and be provided with elongated slot 7, bolt 9 passes hole 8, elongated slot 7 and cooperates with nut 6 travel(l)ing rest 3 is fixed on the expansion knife rest 4.

Claims

1. expansion bed plate frame, comprise drilling rod (1), mobile jib (2) perpendicular to drilling rod (1) setting, travel(l)ing rest (3), expand knife rest (4), the base (5) that is connected with drilling rod (1) lower end, base (5) is provided with the shoveling cutter, the upper end of expanding knife rest (4) is connected by bolt with an end of mobile jib (2), one end of travel(l)ing rest (3) is connected by bolt with base (5), it is characterized in that, the other end of travel(l)ing rest (3) is provided with hole (8), expand knife rest (4) and be provided with elongated slot (7), bolt (9) passes hole (8), elongated slot (7) cooperates with nut (6) travel(l)ing rest (3) is fixed on and expands on the knife rest (4).