KR20110032826A

KR20110032826A - Backlash prevention type screw pile

Info

Publication number: KR20110032826A
Application number: KR1020090090529A
Authority: KR
Inventors: 김장균
Original assignee: 김장균
Priority date: 2009-09-24
Filing date: 2009-09-24
Publication date: 2011-03-30

Abstract

PURPOSE: A reverse-rotation preventing screw pile is provided to prevent the damage to a facility and to drastically enhance the lifespan. CONSTITUTION: A reverse-rotation preventing screw pile comprises a reverse-rotation preventing blade(4). The reverse-rotation preventing blade is formed on the top(5) of a spiral screw(3). The reverse-rotation preventing blade slopes and is upwardly protruded.

Description

BACKLASH PREVENTION TYPE SCREW PILE}

The present invention relates to a "reverse rotation type screw column,"

The lower end of the support (1) is buried in the ground and fixed to the cylindrical support (1) for supporting installations such as wire fences (2) installed on the ground, guardrails and traffic signs on the side of the road. In

When buried in the ground, it is easy to work and is buried in the lower part so that the strength to be buried is high, and the spiral screw (3) is formed so as to penetrate into the ground and enter firmly while descending by rotation on the outer peripheral surface thereof. ,

Rotation while pressing the support (1) at the top, the support (1) is rotated by the spiral screw (3) to enter the descending and firmly buried in the ground after the wire fence (2) of the follow-up work, roadside guard Since the support (1) is easily rotated in the opposite direction to the rotational direction of the descending entry into the ground due to the impact of external force during the attachment operation of the rail and traffic signs, or during the period of use after completion of the installation operation. It is true that the resistance at the time tends to be rotated in the reverse direction b, which is the backward direction of the range in which the screw 3 has passed, rather than the forward direction a),

The reverse rotation preventing blade 4 protrudes upward by inclining a blade for preventing the holding force of the support 1 from being weakened by the reverse rotation of the support 1 to weaken the fixing force of the support 1. Is formed on the upper surface of the screw 5 of the screw 3 to prevent reverse rotation of the embedded strut 1, so that the wire fence 2, which is installed by the screw column, guardrails and traffic signs on the side of the road, etc. It is an invention that greatly improved the efficiency of installation work and life extension.

[Patent 1] Korean Patent Publication, 2003.05.22, Registration No. 10-0384939 (Screwed Fence Holder), 2-3, Figure 5

As in the prior art, only the spiral protrusion is formed on the outer circumferential surface of the lower portion of the protective fence post 1, and the reverse rotation preventing blade 4 as the present invention is not formed on the screw upper surface 5 of the spiral protrusion. As it is,

When the support (1) is rotated and the entry into the ground by the rotation of the spiral protrusion, the support (1) is driven into the ground, and after receiving the external force during the subsequent work for attaching the installation of the protective fence or the like or during the use period after the installation is completed. Since 1) is easier to rotate in the reverse direction of rotation (b) in the reverse direction, which is the area that has passed once, rather than the direction of forward rotation (a) during the lower entrance when there is a lot of resistance, such a reverse rotation of the support (1) Due to the weakening of the holding force of the land (1) with the ground was caused.

In the present invention, to solve the disadvantages of the prior art is to form the anti-rotation blade (4) on the screw (3) of the support (1).

In the prior art, as shown in Fig. 1, in order to install a fixture such as a wire fence 2, a roadside guardrail and a traffic sign on the ground, a pillar 1 for supporting the fixture is buried and fixed in the ground. The strut 1 having the bottom buried in the ground has a cylindrical steel pipe as a material, and forms a lower portion in a conical shape, and forms a spiral screw 3 following the conical portion and a portion of the cylindrical portion connected to the upper portion thereof.

When the upper end of the support (1) is rotated by a power means or a manual means using a lever, the screw (3) at the bottom of the support (1) is rotated so that the lower end of the support (1) digging into the ground by the principle of screw, It is buried in.

However, since the buried pillar (1) is cylindrical, the cylindrical pillar (1) is installed by external impact during installation of the wire fence (2), etc., which is a subsequent process after buried in the pillar (1), or during the period of use after installation is completed. The rotational oscillation of) causes the fixed strength of the screw (3) to be relaxed so that the wire fence (2) is easily damaged and the service life is shortened.

In order to solve the drawbacks of the prior art, it is necessary to prevent the rotation phenomenon of the struts 1 embedded in the ground. Rotation is resistance to the contact of new soil with the tip of the screw (3) undamaged, so that the support (1) is a soil part that is already crushed by the screw (3) at the time of embedding. Since there is a tendency to rotate in the reverse rotation direction (b) opposite to the forward rotation direction (a) for the entrance of the city, the rotation in the reverse rotation direction (b) to prevent the reverse rotation of the support (1) Maintaining strength and extending the service life of the wire fence (2) by preventing the reverse rotation of the support (1) supporting the wire fence (2) by forming a reverse rotation prevention blade (4) on the screw (3) to prevent To achieve the effect A Problems to be Solved by the Invention.

In order to support installations such as wire fences (2), the lower end of the cylindrical strut (1) buried in the ground is formed in a conical shape, and the outer peripheral surface of the conical portion and the outer peripheral surface of the lower portion of the cylindrical portion connected to the conical portion In the screw column which formed the helical screw 3,

The anti-rotation type skew holding column is characterized in that the blade is inclined on the screw upper surface 5 of the helical screw 3 to form an anti-rotation blade 4 protruding upward.

In the cylindrical support (1) buried in the ground to support the installation, such as wire fence (2),

In the prior art, the lower end of the support 1 is conical, and only the helical screw 3 is formed on the outer circumferential surface of the conical portion and the outer circumferential surface of the lower portion of the cylindrical portion connected to the conical portion.

When the support (1) is rotated by a power means such as hydraulic equipment or a lever such as a lever to rotate, the spiral screw (3) is rotated to enter the ground, the support (1) is buried in the ground,

During the installation work of the installation, which is a subsequent work after being buried, or during the period of use after the installation is completed, the props (1) are driven by new soil in the forward rotation direction (a) for entry into the ground at the time of laying. Since the support (1) is not cylindrical but easily rotated in the reverse direction of rotation (b) in the opposite direction, the fixing force of the support (1) with the ground is relaxed and the installations such as the wire fence (2) are easily damaged, Although there was a disadvantage in that the service life was shortened, in order to solve this disadvantage of the prior art, in the present invention, the anti-rotation blade 4 protrudes upward by inclining the blade on the screw top surface 5 of the conventional spiral screw 3. By forming

Since the support 1 is not rotated by the reverse rotation prevention blade 4 in the reverse rotation direction b, which is a direction that is easy to rotate even if there is an external impact, the holding force of the support 1 is maintained and the wire fence 2, etc. As an invention that prevents damage to the installation of the product and significantly improves the effect of extending the service life,

In particular, since the support (1) of the present invention does not need to attach a cement bundle or a supporting reinforcing bar to the bottom as in the prior art for fixing to the ground, it is light in weight and easy to carry,

Even in the mountainous areas where the installation area is poor, it is possible to drill the horizontal hole in the top of the support (1) without using the power equipment and manually rotate it by inserting a lever, etc. Therefore, a quiet installation effect can be obtained.

The detailed configuration of the present invention through the accompanying drawings as follows.

As shown in FIG. 2, the support (1) of the present invention, which supports the installation of the wire fence (2) installed on the ground, the guardrail of the roadside and the traffic sign, etc., is buried in the ground, and has a cylindrical steel pipe material. Helical screw is formed on the outer circumferential surface of the lower portion of the cylindrical portion connected with the outer circumferential surface of the conical portion and the conical portion so that the lower end of the phosphorous support 1 can be easily dug into the ground and fixed. The configuration up to (3) is the same as the conventional configuration,

In this conventional configuration, the spiral screw 3 is also rotated as the strut 1 is rotated while being pushed from the upper end by manual or power rotating means so that the strut 1 is lowered into the ground and fixed, and then the external force is applied. If we explain state of prop (1) when we receive,

As shown in FIG. 3, since the support 1 collides with the living ground in the forward rotation direction a in which the spiral screw 3 enters the rotation, resistance is hard to rotate due to strong resistance.

Since the spiral screw 3 collides with the land already dug by the spiral screw 3 in the reverse direction of rotation (b) opposite to the entry direction, the resistance is weak so that the strut 1 easily receives an external force. Since the phenomenon in which the helical screw 3 rotates in the reverse rotation direction b in which the spiral screw 3 reverses occurs, the propagation of the shore 1 in the ground by the rotation of the support pillar 1 in this reverse reverse rotation direction b is caused. In order to prevent the fixing force of the

In the present invention, the blade is inclined on the screw upper surface (5) of the conventional spiral screw (3) to form an anti-rotation blade (4) protruding upward to rotate in the reverse rotation direction (b) in which the support (1) is reversed If the phenomenon occurs, as shown in Figure 4 as the pickaxe-shaped resistance blade of the tip of the anti-rotation blade (4) seismic earth soil is caught, preventing the support (1) from rotating, the rotation of the support (1) By preventing rocking, the fixing force of the support (1) is maintained to prevent damage to the installation of the wire fence (2), etc. and to improve the effect of extending the life.

In addition, the anti-rotation blade (4) may be formed by a known metal casting, so that the entire outer shape of the spiral screw (3) component formed with the anti-rotation blade (4) formed by the metal casting to a conical shape. It may be inserted or welded to the bottom of the column (1) of cylindrical steel pipe material,

If necessary, by means of welding by attaching a spiral screw (3) formed with a reverse anti-rotation blade (4) formed as a separate part on the outer peripheral surface after forming the lower end of the pillar (1), which is a cylindrical steel pipe material Since only the manufacturing means capable of implementing the configuration of the anti-rotation blade 4 is a well-known means, it is natural that there is no need to specifically limit the forming means of the anti-rotation blade 4, so that the molding of the anti-rotation blade 4 is performed. The means is indefinite.

And the means for rotating the support (1) in order to bury the support (1) in the ground can also be manually rotated at both ends of the lever by drilling a through hole in the radial direction on the top of the support (1) and inserting the lever in the horizontal direction There is,

Only rotating means capable of rotating the strut 1 by means of directly connecting the line means of hydraulic equipment or electric motor to the strut 1 or by means of transmitting the rotational force of the hydraulic equipment or the electric motor through a rotating gear as a known technique It is natural that the solution can be solved because the prop (1) means of rotation can not be limited.

In addition, within the scope of the technical idea of the present invention, it is obvious that it is within the scope of the present invention that the parts formed by modifying the shape of a part or part by simple design change or the like belong to the scope of the present invention.

1 is a perspective view of a support formed only a helical screw at the bottom of the prior art support.

Figure 2 is a perspective view of the anti-rotational screw holder formed reverse rotation prevention blade of the present invention.

3 is a cross-sectional view taken along the line AA ′ of FIG. 1.

4 is a cross-sectional view taken along line BB ′ of FIG. 2.

1: prop

2: wire fence

3: screw

4: anti-rotation blade

5: Screw Top

a: forward direction of entry

b: reverse reverse direction

Claims

The anti-rotation type skew holding column, characterized in that the blade is inclined on the screw upper surface (5) of the helical screw (3) to form an anti-rotation blade (4) protruding upward.