JPH04138433U - Pole extraction device - Google Patents

Abstract

(57) [Summary] [Purpose] To provide a pole extraction device that can safely and easily extract utility poles, etc. in a short time. [Structure] A double clamp 3, which is opened and closed by a hydraulic cylinder 3f and consists of upper and lower parts with anti-slip rubber affixed to the pole gripping surface, is attached to the tip of the working machine of the wheeled hydraulic excavator 2.
A telephone pole 1 is gripped by a double clamp 3. A hydraulic jack 4 is installed on the road surface at the base of the utility pole, and is driven by a hydraulic power source mounted on a hydraulic excavator 2 via a hydraulic hose 2b to push up the lower surface of the double clamp 3.
After the utility pole 1 is pushed up and the frictional resistance of the buried portion is reduced, the utility pole is pulled out by the double clamp 3.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

The present invention relates to a pole extraction device.

0002

[Conventional technology]

Used to construct power supply lines, telephone lines, etc. in conjunction with urban redevelopment. Utility poles currently in use are being removed, relocated, or updated. In these works, First, it is necessary to remove the existing utility pole, but in that case, it is necessary to remove the existing utility pole. After removing the transformer, electric wires, telephone lines, etc., wrap wire rope around the utility pole and The telephone pole is held by hooking the ear rope to the hook of the crane mounted on the pole construction vehicle. Next, cut the paved surface in a predetermined area around the utility pole with a cutter, and cut the surface layer within the area. After crushing the roadbed, remove the surface layer and roadbed material as necessary. After this, The utility pole is removed by operating the crane on the pole construction vehicle and pulling it up. Ru.

0003 The buried part of a utility pole installed on a lightly paved or unpaved road surface must be The shackles that prevent the road from tilting are attached with U bolts. After digging into the surface and removing the U-bolts, we had to pull out the utility pole. Also, the construction If it is not possible to remove the utility pole by simply lifting it with a pole truck, remove it from the bottom of the utility pole. After wrapping a chain around the pole, the chain was pushed up with a jack, and the pole was raised several centimeters. After being pushed up, a pole-erecting truck is used to pull it up.

0004

[Problem that the idea aims to solve]

The conventional utility pole extraction method has the following problems. (1) When pulling out a utility pole using a pole-erecting vehicle, place the wire rope on the pole to prevent it from slipping. The wire rope must be wrapped properly. During the extraction process, a wireless If the rope becomes misaligned, the wire rope must be re-wound. (2) If the utility pole cannot be removed only by the removal operation using a pole erecting vehicle, check the bottom of the utility pole. The utility poles are lifted up by winding wires around them and operating jacks, but this kind of work This is a time-consuming task and occurs irregularly, resulting in poor work efficiency. (3) When lowering the removed utility pole to the desired position, lift it up with a wire rope. The poles will swing unstable, so be careful not to collide with nearby structures. It must be hung with great care. Of course, it also makes work safer. Sufficient consideration must be given to ensuring complete security. If each of the above operations does not proceed smoothly, the sampling operation time will be prolonged.

[0005] The present invention focuses on the above-mentioned conventional problems and allows for the removal of telephone poles, etc., safely and easily in a short period of time. The object of the present invention is to provide a pole extracting device that can be used to remove poles.

[0006]

[Means to solve the problem]

In order to achieve the above purpose, the pole extraction device according to the present invention is installed on a hydraulic excavator. It is attached to the tip of the work equipment, opens and closes using hydraulic pressure, and has anti-slip rubber affixed to the pole gripping surface. A double clamp consisting of two stages (upper and lower) and a cutter with a groove width slightly larger than the outside diameter of the pole. A base plate having a notch groove is fixed vertically with the notch groove in between. and a hydraulic jack consisting of two hydraulic cylinders, the hydraulic excavator The hydraulic jack was driven by a hydraulic power source.

[0007]

[Effect]

The diameter of the utility pole has a taper that is narrower at the top and thicker at the bottom. For example, we divided the clamp into upper and lower parts and attached anti-slip rubber to the gripping surface, so these clamps Each of the poles can reliably grip the utility pole according to the diameter of the gripping portion. The underside of this double clamp is placed on a hydraulic jack driven by a hydraulic excavator. When the frictional resistance of the utility pole in the buried part has decreased, the double clamp is applied. The utility pole can be easily removed by pulling it up.

[0008]

【Example】

Examples of the pole extraction device according to the present invention will be explained in detail below with reference to the drawings. Explain in detail. Figure 1 is an overall explanatory diagram for removing utility poles using a wheeled hydraulic excavator. is gripped by a double clamp 3 attached to the tip of the working machine of the wheeled hydraulic excavator 2. held. The double clamp 3 has a bracket as shown in FIGS. 2 and 3. A pair of pins 3b are pivotally attached to the left and right sides of the upper surface of the kit 3a so that they can rotate freely in the horizontal direction. clamp 3c and pins 3d on both left and right sides of the lower surface of the bracket 3a in a horizontal direction. A pair of clamps 3e that are rotatably mounted in the direction, and these clamps 3c, 3e It consists of four hydraulic cylinders 3f that drive the. Hydraulic cylinder 3f shortened When the upper and lower clamps 3c and 3e are opened, and the hydraulic cylinder 3f is extended, the upper and lower clamps 3c and 3e are opened. The lower clamps 3c and 3e are closed. The inner surfaces of the upper and lower clamps 3c and 3e are attached to utility poles. It forms an arc so that it can be gripped, and 3g of anti-slip rubber is attached to this arc surface. has been done. This double clamp is an arm with a rotation mechanism of wheeled hydraulic excavator 2. It is attached to the tip of 2a.

[0009] FIG. 4 shows the hydraulic jack 4. The base plate 4a is dug out when removing the utility pole. A nearly square plate with an area larger than the area of the road surface caused by A cutout groove 4b having a groove width slightly larger than the diameter of the utility pole is provided throughout the area. Hydraulic cylinders 4c are vertically mounted on both sides of the center with the notch groove 4b in between. It is fixed. A hydraulic pipe 4 that communicates the bottom sides of the two hydraulic cylinders 4c. A quick coupler 4e is attached to d, and a hydraulic pipe 4f communicating with the head side A quick coupler 4g is attached to the .

0010 Next, we will explain how to remove utility poles using the pole removal device of this invention. do. After removing the transformer, wires, etc. installed on the utility pole to be removed, A cutter is used to cut the paved surface in a predetermined area around the utility pole, and the surface layer and After crushing the roadbed, remove the surface layer and roadbed material as necessary. Next, wheeled oil The pressure excavator 2 is operated to grip and hold the telephone pole 1 with the double clamp 3. hydraulic jack 4 Align the cutout groove 4b provided in the base plate 4a with the utility pole 1 and insert the hydraulic jack. Push in the bracket 4 and adjust so that the utility pole 1 is located at the center of the base plate 4a. .

[0011] Connect the terminal of the hydraulic hose 2b of the hydraulic excavator 2 to the quick coupler of the hydraulic jack 4. 4e and 4g, and then operate the hydraulic excavator 2 to gradually extend the hydraulic cylinder 4c. Make it tense. The hydraulic cylinder 4c pushes up the bottom surface of the double clamp 3. As a result, the utility pole 1 is pushed up from its buried position.

0012 In this way, utility pole 1 is pushed up to an appropriate height, and the frictional resistance of the buried part is reduced. When the amount decreases, stop pushing up with hydraulic jack 4, and use double clamp 3. switch to pull up. The timing of the transition from pushing up to pulling up is determined by the tightening of the roadbed. Depending on the degree of compaction and the degree of loosening of the roadbed at the beginning of this construction work. different. In addition, if necessary, the boom 2c of the hydraulic excavator 2 or the rotating arm By operating the system 2a and shaking the utility pole 1 back and forth, the utility pole 1 can be easily removed.

[0013] While holding the removed utility pole with a double clamp, rotate the upper revolving body of the hydraulic excavator. Rotate it and lower it onto the truck bed or other desired location. At this time, operate the rotation mechanism to When the arm is rotated 90 degrees, the utility pole held vertically rotates horizontally. Loading and unloading operations proceed extremely efficiently and safely. Also hydraulic jack Remove the hydraulic hose from the quick coupler and place it in the position of the next utility pole to be removed. move it.

[0014] The pole extraction device according to the present invention is not limited to utility poles, but can also be used to remove poles that have a shape similar to utility poles. It can also be used to remove lighting poles, signage poles, etc.

[0015]

[Effect of the idea]

As explained above, according to the present invention, a hydraulic excavator is used when removing utility poles, etc. Grip the bottom of utility poles, etc. with a double clamp with anti-slip rubber made as an attachment. The lower surface of this double clamp is connected to the hydraulic jack driven by the hydraulic excavator. After pushing it up with a jack, I decided to pull it out with a double clamp, so it was easier than before. sampling operations can be carried out quickly and easily.

[0016] In addition, by using a hydraulic excavator equipped with a rotating arm, It is possible to immediately and safely load utility poles, etc. that have been removed onto trucks, etc. Therefore, Significantly reduces worker physical and mental fatigue and significantly improves work efficiency be able to.

[Brief explanation of drawings]

FIG. 1 is a schematic explanatory diagram of utility pole extraction work using a pole extraction device.

FIG. 2 is a top view of the double clamp.

FIG. 3 is a side view of the double clamp.

FIG. 4 is a perspective view of the hydraulic jack.

[Explanation of symbols]

1 telephone pole 2 Wheeled hydraulic excavator 3 Double clamp 3f, 4c hydraulic cylinder 3g anti-slip rubber 4 Hydraulic jack 4a base plate 4b Notch groove

Claims (1)

[Scope of utility model registration request] [Claim 1] A double clamp that is attached to the tip of a working machine of a hydraulic excavator, opens and closes using hydraulic pressure, and consists of two stages, upper and lower, with anti-slip rubber affixed to the pole gripping surface, and a groove width that is slightly larger than the outside diameter of the pole. and a hydraulic jack consisting of two hydraulic cylinders fixed vertically across the notch groove on a base plate having a notch groove,
A pole extraction device characterized in that a hydraulic jack is driven by a hydraulic power source of the hydraulic excavator.