CN2080445U

CN2080445U - Drawer

Info

Publication number: CN2080445U
Application number: CN 90220646
Authority: CN
Inventors: 李大林; 徐国才
Original assignee: Hebei University of Architecture
Current assignee: Hebei University of Architecture
Priority date: 1990-09-19
Filing date: 1990-09-19
Publication date: 1991-07-10

Abstract

The utility model relates to a drawer which comprises a clamping anchor head A, a lever B and a supporting seat C. The clamping anchor head A comprises a front and a rear clamping devices which are correspondingly provided with a semicircle hole. The front clamping device and the rear clamping device are arranged in a clamping plate. The front clamping device is fixed to the clamping plate, and the rear clamping device is in slide fit with the inclined hole of the side face of the clamping plate. The clamping anchor head A is arranged in the clamping-plate shape lever B. The side face of the clamping plate of the lever is provided with a lateral direction strip hole which is in slide fit with the clamping anchor head A. The lever B is arranged on the supporting seat C. The front clamping device and the rear clamping device are sheathed on a pipe drawn line. A spanner on the lever B is lifted, and the pipe drawn line is vertically drawn. The utility model is especially suitable for drawing the pipe line which is pre-buried in concrete.

Description

Drawer

The utility model relates to a kind of hand tools, particularly a kind of specific purpose tool for requiring rigid straight pipe line pre-buried or that lay to extract concrete internal cause technology or structural behaviour.

In the production of xoncrete structure or member, usually pre-buried or lay some rigid straight pipe lines in concrete because of the requirement of technology or structural behaviour, when also need that it is taken out to certain the time in concrete, in the past owing to there is not a kind of special and effective puller, and make that this work is difficult to carry out.

Prior art is in the time need extracting these rigid straight pipe lines from concrete, people often adopt dual mode, a kind of is that the employing hoist engine is a power, with steel wire rope with hoist engine with linked to each other by the tube drawing line, pipeline is extracted in rotation by hoist engine, but this mode is often because of the hoist engine difficult arrangement or because of by the unfavorable or of living in angle discomfort in tube drawing line present position, with and some feature of exposed parts unfavorable etc., and its use is limited to; Another kind method is by extracting manually, when extracting, while usually be to use the pipe switching to move to go out with hand-lifting, but this mode often not quite can't be extracted it because of hand-lifting strength or because of the power of holding is inhomogeneous concrete is damaged.

The purpose of this utility model just be to provide a kind of can be easily with in the concrete, the pipe extractor that rigid line pre-buried with various angles or that lay is extracted easily.

The utility model is to realize like this.Pipe extractor of the present utility model constitutes by clamping anchor head, lever and supporting seat.Clamp anchor head and include a pair of corresponding front clamp device, back binding clasp and the clamping plate that semicircle is punchinged that have that cooperatively interact, the front clamp device is fixedly mounted in the clamping plate, be respectively equipped with the bearing pin of two protrusions on two sides of back binding clasp, the bar hole of the vertical inclination that open two sides of this bearing pin and clamping plate is slidingly matched, and also is provided with the bearing pin of protrusion at two lateral surfaces of two clamping plates; Described lever is by two outer supporting splints, front support rods and pull out hand and constitute, the side of supporting splint has horizontal bar hole outside two, the bearing pin of two protrusions of clamping anchor head side is slidingly matched with the horizontal bar hole of outer supporting splint side, supports mounting on the front support rod of lever.

Clamp and be provided with preceding limit for width device and back limit for width device in the anchor head, they all are fixedly mounted in the clamping plate, are positioned at the outside of front clamp device and back binding clasp.

During use, to clamp anchor head is contained in the lever, the bearing pin of the protrusion that the clamping plate both sides of clamping anchor head are set places in the bar hole of the outer supporting splint both sides of lever, supporting seat is on the front support rod of lever, select suitable binding clasp, the punch(ed) card of preceding binder and back binding clasp is being desired on the tube pulling part, lever plate is pressed upper handle on hand, firmly lift handle, pipe fitting then can be transferred to.

The utility model is simple in structure, and applicability is strong, and is easy to operate, can successfully from concrete, pre-buried pipeline be transferred to, and will never grasp bad xoncrete structure, it transfers to the diameter of pipeline to be generally 1-5cm, similarly also has been applicable to the embedding pipe fittings of dialling other type.

Accompanying drawing 1 is a shaft side decomposition figure of the present utility model.

Accompanying drawing 2 is user mode schematic diagrames of the present utility model.

Description of drawings:

A-clamps anchor head B-lever

The C-supporting seat

1, base plate, 2, gripper shoe, 3, front support rod, 4, outer support bar clamping plate, 5, bearing pin, 6, preceding limit for width device, 7, front clamp device, 8, clamping plate, 9, the back binding clasp, 10, back limit for width device, 11, drift bolt, 12, the vertical bar hole that tilts, 13, horizontal bar hole, 14, spanner, 15, drift bolt, 16, pipeline, 17, handle.

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

As accompanying drawing 1 and accompanying drawing 2, according to selected for use front clamp device 7 and the back binding clasp 9 that matches with it by the external diameter of tube pulling line, front clamp device 7 usefulness drift bolts are fixed in the clamping plate 8, there is bearing pin back binding clasp 9 both sides, be through in the bar hole 12 of the vertical inclination of opening clamping plate 8 sides, the outer supporting splint 4 of lever B is installed in the outside that clamps anchor head A, and it is fixing with drift bolt 15, the bearing pin 5 that protrude the two sides of clamping head anchor A is put into the horizontal bar hole 13 of outer supporting splint 4 both sides, wrench 14 puts stock handle 17, to be passed along the space in the middle of the binding clasp of front and back by tube pulling line 16 then, and tube pulling machine is put into by the lower end of tube pulling line 16 exposed parts always, 2 of the gripper shoes of supporting seat C are on lever B front support rod 3, the base plate 1 of gripper shoe 2 is placed on the concrete stably, the handle 17 of raising one's hand slowly firmly, the protrusion bearing pin of back binding clasp 9 moves downward along the inclination cylindrical void of both sides on the clamping plate 8 simultaneously, and will be clamped by tube pulling line 16, under the effect of frictional force, make and clamp anchor head A and can't be produced relative displacement between the tube pulling line and will from concrete, be transferred to by tube pulling line 16, because the both sides of the outer supporting splint 4 of lever B have horizontal bar hole, along with moving up and down of spanner 14, the relative displacement of the outer supporting splint 4 former fulcrums of clamping anchor head A that spanner axis and horizontal direction variable angle cause and lever B, regulate by clamping plate 8 fulcrums horizontal bar hole 13 interior the moving of supporting splint both sides outside that clamp anchor head A, guaranteed that clamping anchor head A only produces heavy up and down straight motion, clamp the displacement that anchor head A produces horizontal direction vertically upward and not thereby in whole tube pulling process, make forever, vertically transferred to by 16 quilts of tube pulling line.

In order to increase the intensity that clamps anchor head A, guarantee front clamp device 7 and back binding clasp 9 clamping reliabilities, limit for width device 6 and back limit for width device 10 before in clamping anchor head A, also being provided with, all be fixed on the both sides that are positioned at forward and backward binding clasp in the clamping plate 8 with drift bolt, on the semicircle that back binding clasp 9 is opened is punchinged wall, be provided with indentation, thereby guarantee it and enough frictional force is arranged between the tube pulling line.

Along with stock handle 17 drives pumping of spanners 14, by the tube pulling line then by a little dial-out.

Claims

1, a kind of tool of exchanging work, comprise and clamp anchor head, lever and supporting seat, it is characterized in that described clamping anchor head include a pair of cooperatively interact have a front clamp device 7 that semicircle is punchinged, back binding clasp 9 and clamping plate 8, front clamp device 7 is fixedly mounted in the clamping plate 8, be respectively equipped with the bearing pin of two protrusions on the two sides of back binding clasp 9, the bar hole 12 of the vertical inclination that open 8 two sides of this bearing pin and clamping plate is slidingly matched, and also is provided with the bearing pin 5 of protrusion in two sides of clamping plate 8; Described lever is by two outer supporting splints 4, front support rod 3 and wrench 14 constitute, the side of supporting splint 4 has horizontal bar hole 13 outside two, the bearing pin of two protrusions of clamping anchor head side is slidingly matched with the horizontal bar hole of outer supporting splint 4 sides, and the lever front support rod is positioned at and supports on the mounting.

2, by the described driver-extractor of claim 1, it is characterized in that clamping anchor head and be provided with preceding limit for width device 6 and back limit for width device 10, all be fixedly mounted in the clamping plate 8, be positioned at the outside of front clamp device 7 and back binding clasp 9.