JP3328820B2 - U-shaped groove lifting device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a U-shaped groove lifting device used for installing a generally large U-shaped groove for drainage and drainage in civil engineering work.

[0002]

2. Description of the Related Art As shown in FIG. 5, a conventional U-shaped groove lifting means using a U-shaped groove lifting device of this kind is a supporting rod at a lower end of a both-side hanging rod (B) of a lifting device (A). (C) is inserted into the hole (e) at the center of each side wall of the U-shaped groove (d), and the U-shaped groove (d)
Attach the lifting tool (a) to the hook, hook the hook (g) of the crane on the suspension ring (f) at the upper end of the lifting tool (a), lift the U-shaped groove (d) with the crane, and And then installed with the U-shaped groove (d) down.

[0003]

In the above U-shaped groove lifting means using the conventional U-shaped groove lifting device,

(1) In general, the center of gravity of the U-shaped groove cannot be taken,
When the U-shaped groove is lifted, the U-shaped groove is inclined around the support rod. Therefore, during the lifting of the U-shaped groove, the U-shaped groove must be manually held to keep the U-shaped groove horizontal. Therefore, the large U-shaped groove of 600 to 900 kg or more than 1 ton is a very heavy labor to keep the horizontal level.

(2) The hanging rod of the lifting tool is located on both sides of the U-shaped groove so as to protrude. Therefore,

(A) It is not possible to work where there is an obstacle such as a wall on one side.

(B) When the U-shaped groove is set down, the water thread hinders the installation. Therefore, every time one U-shaped groove is installed, the water thread must be re-stretched, which is troublesome and inefficient. is there.

(C) When the U-shaped groove is lowered, the U-shaped groove cannot be finely adjusted to the water thread because the lifting tool hits the water thread.

[0009]

SUMMARY OF THE INVENTION According to the present invention, a U-shaped groove is hung on one side of a U-shaped groove and fixed to one side of the U-shaped groove by clamping and holding one side wall, and the U-shaped groove is securely and safely lifted. The present invention provides a U-shaped groove lifting device that can easily and accurately install a U-shaped groove while keeping a water thread attached, and can improve workability even if an obstacle such as a wall is attached to one side. The purpose is to:

The U-shaped groove lifting device of the present invention is a
And a 7-shaped support with the upper part fixed to both ends of this main rod
U-shape provided at the lower end of one side long piece of the frame and the front and rear support frames
Haunch receptacle at the lower end of the outer periphery of one side of the groove and the other short piece on the other side of the support frame
A pusher which is attached to and detached from the inner peripheral surface of one side of the U-shaped groove provided at the lower end of
And the support so as to be in contact with the end side surface of the U-shaped groove.
Before being provided on the holding frame so that the position of the U-shaped groove can be adjusted in the longitudinal direction.
A ruler piece and a hanging rod with its lower end attached to the main rod
It is characterized by comprising. Also, the U-shaped groove lifting device of the present invention
Has the main rod in the front-rear direction and the upper part at both ends of this main rod.
A fixed 7-shaped support frame and one long piece on one side of the support frame before and after this
The haunch receiver at the lower end of one side of the U-shaped groove provided at the lower end of
Inside one side of the U-shaped groove provided at the lower end of the other short piece of the support frame
The holding part separated from and attached to the peripheral surface and the upper part of the U-shaped groove
Adjustable vertically in the upper part of the support frame so that it can be
Attach the upper ruler piece and the lower end of the main rod
And a hanging rod.

[0011]

1 to 4 show an embodiment of the present invention. The structure will be described with reference to the drawings. (A) shows a U-shaped groove lifting device, and (1) shows a main rod thereof. , Square pipes. (2) is a 7-shaped support frame in which the upper side is fixed to the front and rear ends (hereinafter, the groove direction of the U-shaped groove is referred to as the front-rear direction, and the direction perpendicular to the groove is referred to as the left-right direction) of the main rod (1) A haunch receiver (5) is provided on a lower end hook (4) of the one long piece (3), and a screw cylinder (7) in the left-right direction is fixed to a lower end of the other short piece (6). (9) is a tightening screw rod threaded through the screw cylinder (7), a bent handle (8) is provided on the other side, and a pressing piece (10) is rotatably fitted on one side, A non-slip piece (13) such as a rubber plate is stretched on one side surface of the presser piece (10) so as not to damage the slip and the U-shaped groove.

(11) Reference numeral 11 denotes a suspension shaft projecting forward and backward from the other side of the main rod (1), which is fixed to the other side of the adjusting pipe (14) of the square pipe slidably fitted to the main rod (1). I do. (15) is a receiving piece provided on the front part of the adjusting cylinder (14), (16) is a front and rear adjusting screw rod which is rotatably fitted to the other side of the upper part of the front support frame (2), and is behind it. The screw portion is threaded through the screw hole of the receiving piece (15), and a bent handle (17) is provided at the front protruding portion.

(12) is a chevron-shaped hanging rod, and the cylindrical bodies (18) at both lower ends thereof are slidably fitted to the front and rear suspension shafts (11), respectively, and are intermediately located on the lower surface of the cylindrical body (18). The receiving piece (1
9) is projected. Reference numeral (20) denotes a support piece protruding downward from the tip of the suspension shaft (11). The right and left adjustment screw rod (2) is rotatably fitted to the lower protrusion of the support piece (20).
1) A threaded handle (22) is provided on one side of the threaded portion of the receiving piece (19) and a bent portion is provided on the other side projecting portion. (2
3) is a suspension ring attached to the upper end of the suspension rod (12).

(24) is a vertical cylinder fixed to an upper side of the outer surface of the support frame (2), and a ruler rod (26) having an upper ruler piece (25) attached to the lower end is vertically moved on the vertical cylinder (24). Tightening bolt (2) movably inserted and screwed into the screw hole of the vertical cylinder (24)
7) Tighten and fix to the required position.

(28) a support tube in the front-rear direction fixed to an intermediate portion of one side edge of the other short piece (6) of the front support frame (2);
(29) is a ruler rod having a front ruler piece (30) attached to the front end thereof. The ruler rod is slidably inserted into the support cylinder (28).
8) Tighten and fix at a required position with a tightening bolt (31) threaded through the screw hole.

(A) is a U-shaped groove, (32) is a haunch at the lower end on both sides, (33) is a hanging wire of a crane, and a hook (34) is attached to the tip. (35) is a groove for installing the U-shaped groove (A), and (36) is a water thread.

The operation will be described.

(1) As shown in FIG. 4, the hook (34) of the suspension wire (33) of the crane is hooked on the suspension ring (23) of the lifting device (a), and the lifting device (a) is moved by the crane. After being lifted, the handle (22) is rotated in the other direction, and the cylinder (18) of the hanging rod (12) is slid on the hanging shaft (11) by the right and left adjusting screw rod (21) to thereby rotate the hanging shaft (11). At the other end.

(2) Lowering the lifting device (a) appropriately
As shown in FIG. 1, at the center in the front-rear direction of the U-shaped groove (A), as shown in FIG. Then, the front and rear handles (8) are rotated in one direction, and the non-slip piece (13) of the holding piece (10) is pressed against the inner surface of one side wall of the U-shaped groove (A) by the tightening screw rod (9). One side wall of the U-shaped groove (A) is contacted with one side long piece (3) of the support frame (2) and a non-slip piece (13).
It is clamped and clamped by the holding piece (10).

(3) The front and rear handles (22) are rotated in one direction, and the cylinder (18) is moved in one direction along the suspension shaft (11) to a substantially central portion of the U-shaped groove (A) in the left-right direction. Move to

(4) The ruler rod (29) with the front ruler piece (30) is slid on the support cylinder (28) so that the front ruler piece (30) is in the U-shaped groove (A) as shown in FIG. After aligning with the front edge, tighten the tightening bolt (31) to tighten the ruler rod (2).
9) is fixedly fastened to the support cylinder (28).

The above-mentioned front ruler piece (30) will be attached to the U-shaped groove (A) the next time the lifting tool (a) is attached to the U-shaped groove (A). It is used for positioning of a lifting device (a) for mounting along the front edge.

(5) Connect the front and rear ruler rods (26) to the vertical cylinder (2).
4) Lower the upper ruler piece (25) against the upper surface of one side wall of the U-shaped groove (A) and screw in the tightening bolt (27) to fix the ruler rod (26) to the vertical cylinder (24). I do.

(6) The front and rear handles (8) are further rotated in one direction so that one side wall of the U-shaped groove (A) is formed by the one long piece (3) of the support frame (2) and the holding piece (10). Non-slip piece (13)
The side walls of the U-shaped groove (A) are fixed more firmly, and the one side long piece (3) of the front and rear support frames (2), the haunch receiver (5), and the non-slip piece (13) of the holding piece (10). ) To secure the lifting device (a) to one side of the U-shaped groove (A).

(7) The U-shaped groove (A) is appropriately lifted by the lifting device (a).

(8) The front and rear handles (22) are appropriately rotated in one direction or the other direction, and the cylinder (18) is suspended from the suspension shaft (1).
1) is moved to one side or the other side, and if necessary, the handle (17) is appropriately rotated in one direction or the other direction, and the adjusting cylinder (14) is moved along the main rod (1). It is moved forward or backward to adjust so that the U-shaped groove (A) is hung horizontally in front, rear, left and right.

(9) The U-shaped groove (A) lifted by the crane is carried, and the water thread (36) stretched along the groove (35) as shown in FIG. The U-shaped groove (A) is set down in the groove (35) by aligning the side surfaces as they are.

(10) After installing the U-shaped groove (A),
Rotate the front and rear handles (8) in the other direction to move the holding piece (10) with the non-slip piece (13) to the screw cylinder (7) to the other side, and then lift the lifting tool (a) with a crane. The structure is lifted and the installation of the U-shaped groove (A) is completed.

(11) Thereafter, the above operation is sequentially repeated to install the U-shaped groove (A).

[0030]

[0031]

The U-shaped groove lifting device of the present invention has the following advantages.

(1) The upper part of the 7-shaped support frame is fixed to the front and rear ends of the main rod of the hoisting tool, and the haunch receivers at the lower ends of the long sides of the support frames at the front and rear are fixed to the one side of the U-shaped groove. The side wall of the U-shaped groove is fastened and clamped by a holding piece of a tightening screw rod with a handle threaded through a screw cylinder at the lower end of the other short piece and a long piece on one side of the support frame, and a lifting device is provided. Attach in the U-shaped groove and lift. Therefore,

(A) The lifting tool can be easily attached to and detached from the U-shaped groove without tools, and the handling is easy and the workability is good.

(B) One side long piece of the support frame and the pressing piece of the tightening screw rod securely and firmly hold and hold one side wall of the U-shaped groove before and after the haunch receiver of the support frame comes off from the U-shaped groove. There is nothing.

(C) The tightening screw rod with handle is rotated, and the side wall of the U-shaped groove is artificially formed by the pressing piece on one side of the tightening screw rod and the one long piece on one side of the support frame. Because we tighten
Tightening of one side wall of the U-shaped groove is always reliable, and there is no risk of trouble.

(D) One side of the U-shaped groove is clamped and held by one long piece of the support frame before and after the lifting tool, the hunter receiver , the upper ruler piece, and the pressing piece of the tightening screw rod, and lifted. Since the tool is securely fixed to one side of the U-shaped groove and lifts the U-shaped groove, there is no possibility that the U-shaped groove falls during the lifting and is damaged. Ma
In addition, the lifting tool for the next U-shaped groove was
Mounting positioning becomes easy.

(E) It is safe and useful for work.

(F) A large or long U-shaped groove can be easily worked, which is practically useful.

(2) Fix the lifting device to one side of the U-shaped groove. Therefore,

(A) The U-shaped groove can be installed while keeping the water thread stretched, which facilitates handling and improves work efficiency.

(B) It is possible to work even where there is an obstacle such as a wall on one side, which is useful in work and has great versatility.

(3) The structure is simple and can be manufactured easily and inexpensively.

[Brief description of the drawings]

FIG. 1 is a front view of a U-shaped groove lifting device showing one embodiment of the present invention.

FIG. 2 is a side view of the same.

FIG. 3 is an oblique view showing a state where the U-shaped groove lifting device is attached to the U-shaped groove, and is partially cut away.

FIG. 4 is a perspective view for explaining operation in a state where a U-shaped groove is installed using the same U-shaped groove lifting device.

FIG. 5 is a perspective view showing a state where a U-shaped groove is lifted by a conventional U-shaped groove lifting device.

[Explanation of symbols]

 A U-shaped groove a U-shaped groove lifting tool 1 Main rod 2 Support frame 3 One side long piece 4 Hook 5 Haunch receiver 6 Other side short piece 7 Screw cylinder 8 Handle 9 Tightening screw rod 10 Pressing piece 11 Hanging shaft 12 Hanging rod DESCRIPTION OF SYMBOLS 13 Non-slip piece 14 Adjustment cylinder 15 Reception piece 16 Front and rear adjustment screw rod 17 Handle 18 Cylindrical body 19 Reception piece 20 Support piece 21 Left and right adjustment screw rod 22 Handle 23 Suspension ring 24 Vertical cylinder 25 Upper ruler piece 26 Ruler rod 27 Tightening bolt 28 Support cylinder 29 Ruler rod 30 Front ruler piece 31 Tightening bolt 32 Haunch 33 Suspension wire 34 Hook 35 Groove 36 Water thread A Lifting tool B Suspension rod C Support rod D U-shaped groove E Hole F Suspension ring

Claims (2)

(57) [Claims] 1. A main rod in the front-rear direction and two ends of the main rod.
And 7-shaped support frame and the upper fixed in its, the haunch receiving one outer peripheral lower end of the U-shaped groove formed in the lower end of one side length piece of the front and rear of the support frame of this, the other side short side of the supporting frame a pressing portion which is disjunctive to one side in the circumferential surface of the U-shaped groove provided at the lower end of the U-shaped groove
The length of the U-shaped groove in the support frame so as to be in contact with the side of the part
The front ruler piece that can be adjusted in the direction
U-shaped groove Tsuuegu characterized by comprising more and Tsu杆 fitted with the lower end of it. 2. A main rod in the front-rear direction and two ends of the main rod.
7-shaped support frame with its upper part fixed, and support frames before and after this
Of the U-shaped groove provided at the lower end of one side long piece
And the U-shape provided at the lower end of the other short piece of the support frame.
A holding portion separated from and in contact with the inner peripheral surface on one side of the groove;
Place it vertically on the top of the support frame so that it contacts the surface.
An upper ruler piece that can be adjusted and a lower end of the main rod
U-shaped groove suspension comprising a suspension rod having a portion attached thereto.
Utensil.